OpenChess

Hi everyone,
After finishing some of the base parts of engine such as (Simple UCI Adapter)/MovGen/DoMove/(Simple fixed depth Alpha Beta Search)/QuiescenceSearch(excluding check moves) and very simple evaluation (as simple as material and score arrays for piece on position) I noticed that engine plays some crazy nonsence moves.
Now I wonder if it can be caused by evalution or a bug in search function.

Is there any free and ready to use evalution func that could be used as DLL function. I need such thing in order to test my search func and make sure every thing there is on their right way.

another question: Is bad sorting of moves for alpha beta search can cause wrong final result?

Move order will not make the engine play ridiculous moves. Are most of the moves nonsense or just the odd one? Can you post an example of a position and the move in question?

Bad move ordering will make the search take much longer, but eventually it should get the right answer.
Do you have a quiescence function? Sometimes bad moves are made when a quiescent search would have shown that the move fails due to a simple chain of captures.

A good thing to do to debug your evaluation is to take some positions and perform a 4-way reflection. The evaluation should be the same for all 4.

E.g.:

kickstone wrote: ↑

Mon Mar 11, 2019 3:09 am

Move order will not make the engine play ridiculous moves. Are most of the moves nonsense or just the odd one?

Other moves are not perfect and according to the engine strength are acceptable. but some of moves are buggy.

Can you post an example of a position and the move in question?

position startpos moves a2a3 d7d5 d2d4 g8f6 g1f3 c8f5 b1c3 f6e4 c3e4 d5e4 f3e5 f7f6 g2g4 f5e6 d4d5 e6c8 e5c4 c8g4 c4e3 g4h5 f1g2 h5g6 f2f3 f6f5 f3e4 f5e4 e1g1 b8d7 d1d4 d7f6 c1d2 c7c6 d4b4 d8d7 d5c6 d7c6 b4d4 a8d8 d4c3 c6b6 a1d1 e7e6 d2c1 f6d5 c3d4 b6d4 d1d4 f8c5 c2c3 e6e5 e3d5 d8d5 b2b4 c5b6 e2e3 e5d4 c3d4

for example in this sequence of moves, moves 25 to 28 seems wrong
My test chess engine plays black.

User923005 wrote: ↑

Wed Mar 13, 2019 12:14 am

Bad move ordering will make the search take much longer, but eventually it should get the right answer.
Do you have a quiescence function? Sometimes bad moves are made when a quiescent search would have shown that the move fails due to a simple chain of captures.

A good thing to do to debug your evaluation is to take some positions and perform a 4-way reflection. The evaluation should be the same for all 4.

E.g.:

Code: Select all

2rr3k/pp3pp1/1nnqbN1p/3pN3/2pP4/2P3Q1/PPB4P/R4RK1 w - - bm Qg6; id "WAC.001 P2a";
k3rr2/1pp3pp/p1Nbqnn1/3Np3/4Pp2/1Q3P2/P4BPP/1KR4R w - - bm Qb6; id "P2b";
r4rk1/ppb4p/2p3q1/2Pp4/3Pn3/1NNQBn1P/PP3PP1/2RR3K b - - bm Qg3; id "P2c";
1kr4r/p4bpp/1q3p2/4pP2/3nP3/P1nBQNN1/1PP3PP/K3RR2 b - - bm Qb3; id "P2d";
8/7p/5k2/5p2/p1p2P2/Pr1pPK2/1P1R3P/8 b - - bm Rxb2; id "WAC.002 P4a";
8/p7/2k5/2p5/2P2p1p/2KPp1rP/P3R1P1/8 b - - bm Rxg2; id "P4b";
8/1p1r3p/pR1Ppk2/P1P2p2/5P2/5K2/7P/8 w - - bm Rxb7; id "P4c";
8/p3r1p1/2kpP1Rp/2p2P1P/2P5/2K5/P7/8 w - - bm Rxg7; id "P4d";
5rk1/1ppb3p/p1pb4/6q1/3P1p1r/2P1R2P/PP1BQ1P1/5RKN w - - bm Rg3; id "WAC.003 P6a";
1kr5/p3bpp1/4bp1p/1q6/r1p1P3/P2R1P2/1P1QB1PP/NKR5 w - - bm Rb3; id "P6b";
5rkn/pp1bq1p1/2p1r2p/3p1P1R/6Q1/P1PB4/1PPB3P/5RK1 b - - bm Rg6; id "P6c";
nkr5/1p1qb1pp/p2r1p2/R1P1p3/1Q6/4BP1P/P3BPP1/1KR5 b - - bm Rb6; id "P6d";
r1bq2rk/pp3pbp/2p1p1pQ/7P/3P4/2PB1N2/PP3PPR/2KR4 w - - bm Qxh7+; id "WAC.004 P8a";
kr2qb1r/pbp3pp/Qp1p1p2/P7/4P3/2N1BP2/RPP3PP/4RK2 w - - bm Qxa7+; id "P8b";
2kr4/pp3ppr/2pb1n2/3p4/7p/2P1P1Pq/PP3PBP/R1BQ2RK b - - bm Qxh2+; id "P8c";
4rk2/rpp3pp/2n1bp2/4p3/p7/qP1P1P2/PBP3PP/KR2QB1R b - - bm Qxa2+; id "P8d";
5k2/6pp/p1qN4/1p1p4/3P4/2PKP2Q/PP3r2/3R4 b - - bm Qc4+; id "WAC.005 P10a";
2k5/pp6/4Nq1p/4p1p1/4P3/Q2PKP2/2r3PP/4R3 b - - bm Qf4+; id "P10b";
3r4/pp3R2/2pkp2q/3p4/1P1P4/P1Qn4/6PP/5K2 w - - bm Qc5+; id "P10c";
4r3/2R3pp/q2pkp2/4p3/4P1P1/4nQ1P/PP6/2K5 w - - bm Qf5+; id "P10d";
7k/p7/1R5K/6r1/6p1/6P1/8/8 w - - bm Rb7; id "WAC.006 P12a";
k7/7p/K5R1/1r6/1p6/1P6/8/8 w - - bm Rg7; id "P12b";
8/8/6p1/6P1/6R1/1r5k/P7/7K b - - bm Rb2; id "P12c";
8/8/1p6/1P6/1R6/k5r1/7P/K7 b - - bm Rg2; id "P12d";
rnbqkb1r/pppp1ppp/8/4P3/6n1/7P/PPPNPPP1/R1BQKBNR b KQkq - bm Ne3; id "WAC.007 P14a";
r1bqkbnr/pppnppp1/7p/6N1/4p3/8/PPPP1PPP/RNBQKB1R w KQkq - bm Ne6; id "P14c";
r4q1k/p2bR1rp/2p2Q1N/5p2/5p2/2P5/PP3PPP/R5K1 w - - bm Rf7; id "WAC.008 P16a";
k1q4r/pr1Rb2p/N1Q2p2/2p5/2p5/5P2/PPP3PP/1K5R w - - bm Rc7; id "P16b";
r5k1/pp3ppp/2p5/5P2/5P2/2P2q1n/P2Br1RP/R4Q1K b - - bm Rf2; id "P16c";
1k5r/ppp3pp/5p2/2P5/2P5/n1q2P2/PR1rB2P/K1Q4R b - - bm Rc2; id "P16d";
3q1rk1/p4pp1/2pb3p/3p4/6Pr/1PNQ4/P1PB1PP1/4RRK1 b - - bm Bh2+; id "WAC.009 P18a";
1kr1q3/1pp4p/p3bp2/4p3/rP6/4QNP1/1PP1BP1P/1KRR4 b - - bm Ba2+; id "P18b";
4rrk1/p1pb1pp1/1pnq4/6pR/3P4/2PB3P/P4PP1/3Q1RK1 w - - bm Bh7+; id "P18c";
1krr4/1pp1bp1p/4qnp1/Rp6/4P3/P3BP2/1PP4P/1KR1Q3 w - - bm Ba7+; id "P18d";
2br2k1/2q3rn/p2NppQ1/2p1P3/Pp5R/4P3/1P3PPP/3R2K1 w - - bm Rxh7; id "WAC.010 P20a";
1k2rb2/nr3q2/1QppN2p/3P1p2/R5pP/3P4/PPP3P1/1K2R3 w - - bm Rxa7; id "P20b";
3r2k1/1p3ppp/4p3/pP5r/2P1p3/P2nPPq1/2Q3RN/2BR2K1 b - - bm Rxh2; id "P20c";
1k2r3/ppp3p1/3p4/r5Pp/3p1P2/1qPPn2P/NR3Q2/1K2RB2 b - - bm Rxa2; id "P20d";
r1b1kb1r/3q1ppp/pBp1pn2/8/Np3P2/5B2/PPP3PP/R2Q1RK1 w kq - bm Bxc6; id "WAC.011 P22a";
r2q1rk1/ppp3pp/5b2/nP3p2/8/PbP1PN2/3Q1PPP/R1B1KB1R b kq - bm Bxc3; id "P22c";
4k1r1/2p3r1/1pR1p3/3pP2p/3P2qP/P4N2/1PQ4P/5R1K b - - bm Qxf3+; id "WAC.012 P24a";
1r1k4/1r3p2/3p1Rp1/p2Pp3/Pq2P3/2N4P/P4QP1/K1R5 b - - bm Qxc3+; id "P24b";
5r1k/1pq4p/p4n2/3p2Qp/3Pp2P/1Pr1P3/2P3R1/4K1R1 w - - bm Qxf6+; id "P24c";
k1r5/p4qp1/2n4p/pQ2p3/P2pP3/3P1rP1/1R3P2/1R1K4 w - - bm Qxc6+; id "P24d";
5rk1/pp4p1/2n1p2p/2Npq3/2p5/6P1/P3P1BP/R4Q1K w - - bm Qxf8+; id "WAC.013 P26a";
1kr5/1p4pp/p2p1n2/3qpN2/5p2/1P6/PB1P3P/K1Q4R w - - bm Qxc8+; id "P26b";
r4q1k/p3p1bp/6p1/2P5/2nPQ3/2N1P2P/PP4P1/5RK1 b - - bm Qxf1+; id "P26c";
k1q4r/pb1p3p/1p6/5P2/3QPn2/P2P1N2/1P4PP/1KR5 b - - bm Qxc1+; id "P26d";
r2rb1k1/pp1q1p1p/2n1p1p1/2bp4/5P2/PP1BPR1Q/1BPN2PP/R5K1 w - - bm Qxh7+; id "WAC.014 P28a";
1k1br2r/p1p1q1pp/1p1p1n2/4pb2/2P5/Q1RPB1PP/PP2NPB1/1K5R w - - bm Qxa7+; id "P28b";
r5k1/1bpn2pp/pp1bpr1q/5p2/2BP4/2N1P1P1/PP1Q1P1P/R2RB1K1 b - - bm Qxh2+; id "P28c";
1k5r/pp2npb1/q1rpb1pp/2p5/4PB2/1P1P1N2/P1P1Q1PP/1K1BR2R b - - bm Qxa2+; id "P28d";
1R6/1brk2p1/4p2p/p1P1Pp2/P7/6P1/1P4P1/2R3K1 w - - bm Rxb7; id "WAC.015 P30a";
6R1/1p2krb1/p2p4/2pP1P1p/7P/1P6/1P4P1/1K3R2 w - - bm Rxg7; id "P30b";
2r3k1/1p4p1/6p1/p7/P1p1pP2/4P2P/1BRK2P1/1r6 b - - bm Rxb2; id "P30c";
1k3r2/1p4p1/1p6/7p/2Pp1p1P/P2P4/1P2KRB1/6r1 b - - bm Rxg2; id "P30d";
r4rk1/ppp2ppp/2n5/2bqp3/8/P2PB3/1PP1NPPP/R2Q1RK1 w - - bm Nc3; id "WAC.016 P32a";
1kr4r/ppp2ppp/5n2/3pqb2/8/3BP2P/PPPN1PP1/1KR1Q2R w - - bm Nf3; id "P32b";
r2q1rk1/1pp1nppp/p2pb3/8/2BQP3/2N5/PPP2PPP/R4RK1 b - - bm Nc6; id "P32c";
1kr1q2r/pppn1pp1/3bp2p/8/3PQB2/5N2/PPP2PPP/1KR4R b - - bm Nf6; id "P32d";
1k5r/pppbn1pp/4q1r1/1P3p2/2NPp3/1QP5/P4PPP/R1B1R1K1 w - - bm Ne5; id "WAC.017 P34a";
r5k1/pp1nbppp/1r1q4/2p3P1/3pPN2/5PQ1/PPP4P/1K1R1B1R w - - bm Nd5; id "P34b";
r1b1r1k1/p4ppp/1qp5/2npP3/1p3P2/4Q1R1/PPPBN1PP/1K5R b - - bm Ne4; id "P34c";
1k1r1b1r/ppp4p/5pq1/3Ppn2/2P3p1/1R1Q4/PP1NBPPP/R5K1 b - - bm Nd4; id "P34d";
R7/P4k2/8/8/8/8/r7/6K1 w - - bm Rh8; id "WAC.018 P36a";
7R/2k4P/8/8/8/8/7r/1K6 w - - bm Ra8; id "P36b";
6k1/R7/8/8/8/8/p4K2/r7 b - - bm Rh1; id "P36c";
1k6/7R/8/8/8/8/2K4p/7r b - - bm Ra1; id "P36d";
r1b2rk1/ppbn1ppp/4p3/1QP4q/3P4/N4N2/5PPP/R1B2RK1 w - - bm c6; id "WAC.019 P38a";
1kr2b1r/ppp1nbpp/3p4/q4PQ1/4P3/2N4N/PPP5/1KR2B1R w - - bm f6; id "P38b";
r1b2rk1/5ppp/n4n2/3p4/1qp4Q/4P3/PPBN1PPP/R1B2RK1 b - - bm c3; id "P38c";
1kr2b1r/ppp5/2n4n/4p3/Q4pq1/3P4/PPP1NBPP/1KR2B1R b - - bm f3; id "P38d";
r2qkb1r/1ppb1ppp/p7/4p3/P1Q1P3/2P5/5PPP/R1B2KNR b kq - bm Bb5; id "WAC.020 P40a";
r1b2knr/5ppp/2p5/p1q1p3/4P3/P7/1PPB1PPP/R2QKB1R w kq - bm Bb4; id "P40c";
5rk1/1b3p1p/pp3p2/3n1N2/1P6/P1qB1PP1/3Q3P/4R1K1 w - - bm Qh6; id "WAC.021 P42a";
1kr5/p1p3b1/2p3pp/2N1n3/6P1/1PP1Bq1P/P3Q3/1K1R4 w - - bm Qa6; id "P42b";
4r1k1/3q3p/p1Qb1pp1/1p6/3N1n2/PP3P2/1B3P1P/5RK1 b - - bm Qh3; id "P42c";
1k1r4/p3q3/1pp1bQ1p/6p1/2n1N3/2P3PP/P1P3B1/1KR5 b - - bm Qa3; id "P42d";
r1bqk2r/ppp1nppp/4p3/n5N1/2BPp3/P1P5/2P2PPP/R1BQK2R w KQkq - bm Ba2 Nxf7; id "WAC.022 P44a";
r1bqk2r/2p2ppp/p1p5/2bpP3/N5n1/4P3/PPP1NPPP/R1BQK2R b KQkq - bm Ba7 Nxf2; id "P44c";
r3nrk1/2p2p1p/p1p1b1p1/2NpPq2/3R4/P1N1Q3/1PP2PPP/4R1K1 w - - bm g4; id "WAC.023 P46a";
1krn3r/p1p2p2/1p1b1p1p/2qPpN2/4R3/3Q1N1P/PPP2PP1/1K1R4 w - - bm b4; id "P46b";
4r1k1/1pp2ppp/p1n1q3/3r4/2nPpQ2/P1P1B1P1/2P2P1P/R3NRK1 b - - bm g5; id "P46c";
1k1r4/ppp2pp1/3q1n1p/4r3/2QpPn2/1P1B1P1P/P1P2P2/1KRN3R b - - bm b5; id "P46d";
6k1/1b1nqpbp/pp4p1/5P2/1PN5/4Q3/P5PP/1B2B1K1 b - - bm Bd4; id "WAC.024 P48a";
1k6/pbpqn1b1/1p4pp/2P5/5NP1/3Q4/PP5P/1K1B2B1 b - - bm Be4; id "P48b";
1b2b1k1/p5pp/4q3/1pn5/5p2/PP4P1/1B1NQPBP/6K1 w - - bm Bd5; id "P48c";
1k1b2b1/pp5p/3q4/5np1/2p5/1P4PP/PBPQN1B1/1K6 w - - bm Be5; id "P48d";
3R1rk1/8/5Qpp/2p5/2P1p1q1/P3P3/1P2PK2/8 b - - bm Qh4+; id "WAC.025 P50a";
1kr1R3/8/ppQ5/5p2/1q1p1P2/3P3P/2KP2P1/8 b - - bm Qa4+; id "P50b";
8/1p2pk2/p3p3/2p1P1Q1/2P5/5qPP/8/3r1RK1 w - - bm Qh5+; id "P50c";
8/2kp2p1/3p3p/1Q1P1p2/5P2/PPq5/8/1KR1r3 w - - bm Qa5+; id "P50d";
3r2k1/1p1b1pp1/pq5p/8/3NR3/2PQ3P/PP3PP1/6K1 b - - bm Bf5; id "WAC.026 P52a";
1k2r3/1pp1b1p1/p5qp/8/3RN3/P3QP2/1PP3PP/1K6 b - - bm Bc5; id "P52b";
6k1/pp3pp1/2pq3p/3nr3/8/PQ5P/1P1B1PP1/3R2K1 w - - bm Bf4; id "P52c";
1k6/1pp3pp/p3qp2/3rn3/8/P5QP/1PP1B1P1/1K2R3 w - - bm Bc4; id "P52d";
7k/pp4np/2p3p1/3pN1q1/3P4/Q7/1r3rPP/2R2RK1 w - - bm Qf8+; id "WAC.027 P54a";
k7/pn4pp/1p3p2/1q1Np3/4P3/7Q/PPr3r1/1KR2R2 w - - bm Qc8+; id "P54b";
2r2rk1/1R3Rpp/q7/3p4/3Pn1Q1/2P3P1/PP4NP/7K b - - bm Qf1+; id "P54c";
1kr2r2/ppR3R1/7q/4p3/1Q1nP3/1P3P2/PN4PP/K7 b - - bm Qc1+; id "P54d";
1r1r2k1/4pp1p/2p1b1p1/p3R3/RqBP4/4P3/1PQ2PPP/6K1 b - - bm Qe1+; id "WAC.028 P56a";
1k2r1r1/p1pp4/1p1b1p2/3R3p/4PBqR/3P4/PPP2QP1/1K6 b - - bm Qd1+; id "P56b";
6k1/1pq2ppp/4p3/rQbp4/P3r3/2P1B1P1/4PP1P/1R1R2K1 w - - bm Qe8+; id "P56c";
1k6/ppp2qp1/3p4/4pbQr/3r3P/1P1B1P2/P1PP4/1K2R1R1 w - - bm Qd8+; id "P56d";
r2q2k1/pp1rbppp/4pn2/2P5/1P3B2/6P1/P3QPBP/1R3RK1 w - - bm c6; id "WAC.029 P58a";
1k2q2r/pppbr1pp/2np4/5P2/2B3P1/1P6/PBPQ3P/1KR3R1 w - - bm f6; id "P58b";
1r3rk1/p3qpbp/6p1/1p3b2/2p5/4PN2/PP1RBPPP/R2Q2K1 b - - bm c3; id "P58c";
1kr3r1/pbpq3p/1p6/2b3p1/5p2/2NP4/PPPBR1PP/1K2Q2R b - - bm f3; id "P58d";
1r3r2/4q1kp/b1pp2p1/5p2/pPn1N3/6P1/P3PPBP/2QRR1K1 w - - bm Nxd6; id "WAC.030 P60a";
2r3r1/pk1q4/1p2pp1b/2p5/3N1nPp/1P6/PBPP3P/1K1RRQ2 w - - bm Nxe6; id "P60b";
2qrr1k1/p3ppbp/6p1/PpN1n3/5P2/B1PP2P1/4Q1KP/1R3R2 b - - bm Nxd3; id "P60c";
1k1rrq2/pbpp3p/1p6/3n1NpP/2P5/1P2PP1B/PK1Q4/2R3R1 b - - bm Nxe3; id "P60d";
rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - bm Qxa8 d6 dxe6 g3; id "WAC.031 P62a";
1kq3br/ppp3Qp/3p4/4P3/8/2N3P1/PPP3P1/1K2R3 w - - bm Qxh8 e6 exd6 b3; id "P62b";
3r2k1/1p3ppp/1p3n2/8/3p4/4P3/Pq3PPP/RB3QK1 b - - bm Qxa1 d3 dxe3 g6; id "P62c";
1k2r3/ppp3p1/2n3p1/8/4p3/3P4/PPP3qP/1KQ3BR b - - bm Qxh1 e3 exd3 b6; id "P62d";
6k1/p4p1p/1p3np1/2q5/4p3/4P1N1/PP3PPP/3Q2K1 w - - bm Qd8+; id "WAC.032 P64a";
1k6/p1p4p/1pn3p1/5q2/3p4/1N1P4/PPP3PP/1K2Q3 w - - bm Qe8+; id "P64b";
3q2k1/pp3ppp/4p1n1/4P3/2Q5/1P3NP1/P4P1P/6K1 b - - bm Qd1+; id "P64c";
1k2q3/ppp3pp/1n1p4/3P4/5Q2/1PN3P1/P1P4P/1K6 b - - bm Qe1+; id "P64d";
8/p1q2pkp/2Pr2p1/8/P3Q3/6P1/5P1P/2R3K1 w - - bm Qe5+ Qf4; id "WAC.033 P66a";
8/pkp2q1p/1p2rP2/8/3Q3P/1P6/P1P5/1K3R2 w - - bm Qd5+ Qc4; id "P66b";
2r3k1/5p1p/6p1/p3q3/8/2pR2P1/P1Q2PKP/8 b - - bm Qe4+ Qf5; id "P66c";
1k3r2/p1p5/1p6/3q3p/8/1P2Rp2/PKP2Q1P/8 b - - bm Qd4+ Qc5; id "P66d";
7k/1b1r2p1/p6p/1p2qN2/3bP3/3Q4/P5PP/1B1R3K b - - bm Bg1; id "WAC.034 P68a";
k7/1p2r1b1/p6p/2Nq2p1/3Pb3/4Q3/PP5P/K3R1B1 b - - bm Bb1; id "P68b";
1b1r3k/p5pp/3q4/3Bp3/1P2Qn2/P6P/1B1R2P1/7K w - - bm Bg8; id "P68c";
k3r1b1/pp5p/4q3/3pB3/2nQ2P1/P6P/1P2R1B1/K7 w - - bm Bb8; id "P68d";
r3r2k/2R3pp/pp1q1p2/8/3P3R/7P/PP3PP1/3Q2K1 w - - bm Rxh7+; id "WAC.035 P70a";
k2r3r/pp3R2/2p1q1pp/8/R3P3/P7/1PP3PP/1K2Q3 w - - bm Rxa7+; id "P70b";
3q2k1/pp3pp1/7p/3p3r/8/PP1Q1P2/2r3PP/R3R2K b - - bm Rxh2+; id "P70c";
1k2q3/1pp3pp/p7/r3p3/8/2P1Q1PP/PP3r2/K2R3R b - - bm Rxa2+; id "P70d";
3r4/2p1rk2/1pQq1pp1/7p/1P1P4/P4P2/6PP/R1R3K1 b - - bm Re1+; id "WAC.036 P72a";
4r3/2kr1p2/1pp1qQp1/p7/4P1P1/2P4P/PP6/1K3R1R b - - bm Rd1+; id "P72b";
r1r3k1/6pp/p4p2/1p1p4/7P/1PqQ1PP1/2P1RK2/3R4 w - - bm Re8+; id "P72c";
1k3r1r/pp6/2p4p/4p1p1/P7/1PP1QqP1/2KR1P2/4R3 w - - bm Rd8+; id "P72d";
2r5/2rk2pp/1pn1pb2/pN1p4/P2P4/1N2B3/nPR1KPPP/3R4 b - - bm Nxd4+; id "WAC.037 P74a";
5r2/pp2kr2/2bp1np1/4p1Np/4P2P/3B2N1/PPPK1RPn/4R3 b - - bm Nxe4+; id "P74b";
3r4/Npr1kppp/1n2b3/p2p4/Pn1P4/1PN1PB2/2RK2PP/2R5 w - - bm Nxd5+; id "P74c";
4r3/pppk1rpN/3b2n1/4p2p/4P1nP/2BP1NP1/PP2KR2/5R2 w - - bm Nxe5+; id "P74d";
4k3/p4prp/1p6/2b5/8/2Q3P1/P2R1PKP/4q3 w - - bm Qd3 Rd8+; id "WAC.038 P76a";
3k4/prp4p/6p1/5b2/8/1P3Q2/PKP1R2P/3q4 w - - bm Qe3 Re8+; id "P76b";
4Q3/p2r1pkp/2q3p1/8/2B5/1P6/P4PRP/4K3 b - - bm Qd6 Rd1+; id "P76c";
3Q4/pkp1r2p/1p3q2/8/5B2/6P1/PRP4P/3K4 b - - bm Qe6 Re1+; id "P76d";
r1br2k1/pp2bppp/2nppn2/8/2P1PB2/2N2P2/PqN1B1PP/R2Q1R1K w - - bm Na4; id "WAC.039 P78a";
1k2rb1r/pppb2pp/2nppn2/8/2BP1P2/2P2N2/PP1B1NqP/K1R1Q2R w - - bm Nh4; id "P78b";
r2q1r1k/pQn1b1pp/2n2p2/2p1pb2/8/2NPPN2/PP2BPPP/R1BR2K1 b - - bm Na5; id "P78c";
k1r1q2r/pp1b1nQp/2p2n2/2bp1p2/8/2NPPN2/PPPB2PP/1K2RB1R b - - bm Nh5; id "P78d";
3r1r1k/1p4pp/p4p2/8/1PQR4/6Pq/P3PP2/2R3K1 b - - bm Rc8; id "WAC.040 P80a";
k1r1r3/pp4p1/2p4p/8/4RQP1/qP6/2PP3P/1K3R2 b - - bm Rf8; id "P80b";
2r3k1/p3pp2/6pQ/1pqr4/8/P4P2/1P4PP/3R1R1K w - - bm Rc1; id "P80c";
1k3r2/2pp3p/Qp6/4rqp1/8/2P4P/PP4P1/K1R1R3 w - - bm Rf1; id "P80d";
1k6/5RP1/1P6/1K6/6r1/8/8/8 w - - bm Ka5 Kc5 b7; id "WAC.041 P82a";
6k1/1PR5/6P1/6K1/1r6/8/8/8 w - - bm Kh5 Kf5 g7; id "P82b";
8/8/8/6R1/1k6/1p6/5rp1/1K6 b - - bm Ka4 Kc4 b2; id "P82c";
8/8/8/1R6/6k1/6p1/1pr5/6K1 b - - bm Kh4 Kf4 g2; id "P82d";
r1b1r1k1/pp1n1pbp/1qp3p1/3p4/1B1P4/Q3PN2/PP2BPPP/R4RK1 w - - bm Ba5; id "WAC.042 P84a";
1k1r1b1r/pbp1n1pp/1p3pq1/4p3/4P1B1/2NP3Q/PPPB2PP/1KR4R w - - bm Bh5; id "P84b";
r4rk1/pp2bppp/q3pn2/1b1p4/3P4/1QP3P1/PP1N1PBP/R1B1R1K1 b - - bm Ba4; id "P84c";
1kr4r/pppb2pp/2np3q/4p1b1/4P3/1P3PQ1/PBP1N1PP/1K1R1B1R b - - bm Bh4; id "P84d";
r2q3k/p2P3p/1p3p2/3QP1r1/8/B7/P5PP/2R3K1 w - - bm Be7 Qxa8; id "WAC.043 P86a";
k3q2r/p3P2p/2p3p1/1r1PQ3/8/7B/PP5P/1K3R2 w - - bm Bd7 Qxh8; id "P86b";
2r3k1/p5pp/b7/8/3qp1R1/1P3P2/P2p3P/R2Q3K b - - bm Be2 Qxa1; id "P86c";
1k3r2/pp5p/7b/8/1R1pq3/2P3P1/P3p2P/K3Q2R b - - bm Bd2 Qxh1; id "P86d";
3rb1k1/pq3pbp/4n1p1/3p4/2N5/2P2QB1/PP3PPP/1B1R2K1 b - - bm dxc4; id "WAC.044 P88a";
1k1br3/pbp3qp/1p1n4/4p3/5N2/1BQ2P2/PPP3PP/1K2R1B1 b - - bm exf4; id "P88b";
1b1r2k1/pp3ppp/2p2qb1/2n5/3P4/4N1P1/PQ3PBP/3RB1K1 w - - bm dxc5; id "P88c";
1k2r1b1/ppp3pp/1bq2p2/5n2/4P3/1P1N4/PBP3QP/1K1BR3 w - - bm exf5; id "P88d";
7k/2p1b1pp/8/1p2P3/1P3r2/2P3Q1/1P5P/R4qBK b - - bm Qxa1; id "WAC.045 P90a";
k7/pp1b1p2/8/3P2p1/2r3P1/1Q3P2/P5P1/KBq4R b - - bm Qxh1; id "P90b";
r4Qbk/1p5p/2p3q1/1p3R2/1P2p3/8/2P1B1PP/7K w - - bm Qxa8; id "P90c";
kbQ4r/p5p1/1q3p2/2R3p1/3p2P1/8/PP1B1P2/K7 w - - bm Qxh8; id "P90d";
r1bqr1k1/pp1nb1p1/4p2p/3p1p2/3P4/P1N1PNP1/1PQ2PP1/3RKB1R w K - bm Nb5; id "WAC.046 P92a";
3rkb1r/1pq2pp1/p1n1pnp1/3p4/3P1P2/4P2P/PP1NB1P1/R1BQR1K1 b K - bm Nb4; id "P92c";
r1b2rk1/pp2bppp/2n1pn2/q5B1/2BP4/2N2N2/PP2QPPP/2R2RK1 b - - bm Nxd4; id "WAC.047 P94a";
1kr2b1r/pppb2pp/2np1n2/1B5q/4PB2/2N2N2/PPPQ2PP/1KR2R2 b - - bm Nxe4; id "P94b";
2r2rk1/pp2qppp/2n2n2/2bp4/Q5b1/2N1PN2/PP2BPPP/R1B2RK1 w - - bm Nxd5; id "P94c";
1kr2r2/pppq2pp/2n2n2/4pb2/1b5Q/2NP1N2/PPPB2PP/1KR2B1R w - - bm Nxe5; id "P94d";
1rbq1rk1/p1p1bppp/2p2n2/8/Q1BP4/2N5/PP3PPP/R1B2RK1 b - - bm Rb4; id "WAC.048 P96a";
1kr1qbr1/pppb1p1p/2n2p2/8/4PB1Q/5N2/PPP3PP/1KR2B1R b - - bm Rg4; id "P96b";
r1b2rk1/pp3ppp/2n5/q1bp4/8/2P2N2/P1P1BPPP/1RBQ1RK1 w - - bm Rb5; id "P96c";
1kr2b1r/ppp3pp/5n2/4pb1q/8/2N2P2/PPPB1P1P/1KR1QBR1 w - - bm Rg5; id "P96d";
2b3k1/4rrpp/p2p4/2pP2RQ/1pP1Pp1N/1P3P1P/1q6/6RK w - - bm Qxh7+; id "WAC.049 P98a";
1k3b2/pprr4/4p2p/QR2Pp2/N1pP1Pp1/P1P3P1/6q1/KR6 w - - bm Qxa7+; id "P98b";
6rk/1Q6/1p3p1p/1Pp1pP1n/2Pp2rq/P2P4/4RRPP/2B3K1 b - - bm Qxh2+; id "P98c";
kr6/6Q1/p1p3p1/n1Pp1pP1/qr2pP2/4P2P/PPRR4/1K3B2 b - - bm Qxa2+; id "P98d";
k4r2/1R4pb/1pQp1n1p/3P4/5p1P/3P2P1/r1q1R2K/8 w - - bm Rxb6+; id "WAC.050 P100a";
2r4k/bp4R1/p1n1pQp1/4P3/P1p5/1P2P3/K2R1q1r/8 w - - bm Rxg6+; id "P100b";
8/R1Q1r2k/3p2p1/5P1p/3p4/1PqP1N1P/1r4PB/K4R2 b - - bm Rxb3+; id "P100c";
8/k2r1Q1R/1p2p3/p1P5/4p3/P1N1PqP1/BP4r1/2R4K b - - bm Rxg3+; id "P100d";
r1bq1r2/pp4k1/4p2p/3pPp1Q/3N1R1P/2PB4/6P1/6K1 w - - bm Rg4+; id "WAC.051 P102a";
2r1qb1r/1k4pp/p2p4/Q1pPp3/P1R1N3/4BP2/1P6/1K6 w - - bm Rb4+; id "P102b";
6k1/6p1/2pb4/3n1r1p/3PpP1q/4P2P/PP4K1/R1BQ1R2 b - - bm Rg5+; id "P102c";
1k6/1p6/4bp2/p1r1n3/q1PpP3/P2P4/1K4PP/2R1QB1R b - - bm Rb5+; id "P102d";
r1k5/1p3q2/1Qpb4/3N1p2/5Pp1/3P2Pp/PPPK3P/4R3 w - - bm Re7 c4; id "WAC.052 P104a";
5k1r/2q3p1/4bpQ1/2p1N3/1pP5/pP2P3/P3KPPP/3R4 w - - bm Rd7 f4; id "P104b";
4r3/pppk3p/3p2pP/5pP1/3n1P2/1qPB4/1P3Q2/R1K5 b - - bm Re2 c5; id "P104c";
3r4/p3kppp/Pp2p3/1Pp5/2P1n3/4BPq1/2Q3P1/5K1R b - - bm Rd2 f5; id "P104d";
6k1/6p1/p7/3Pn3/5p2/4rBqP/P4RP1/5QK1 b - - bm Re1; id "WAC.053 P106a";
1k6/1p6/7p/3nP3/2p5/PqBr4/1PR4P/1KQ5 b - - bm Rd1; id "P106b";
5qk1/p4rp1/4RbQp/5P2/3pN3/P7/6P1/6K1 w - - bm Re8; id "P106c";
1kq5/1pr4p/pQbR4/2P5/3Np3/7P/1P6/1K6 w - - bm Rd8; id "P106d";
r3kr2/1pp4p/1p1p4/7q/4P1n1/2PP2Q1/PP4P1/R1BB2K1 b q - bm Qh1+; id "WAC.054 P108a";
r1bb2k1/pp4p1/2pp2q1/4p1N1/7Q/1P1P4/1PP4P/R3KR2 w q - bm Qh8+; id "P108c";
r3r1k1/pp1q1pp1/4b1p1/3p2B1/3Q1R2/8/PPP3PP/4R1K1 w - - bm Qxg7+; id "WAC.055 P110a";
1k1r3r/1pp1q1pp/1p1b4/1B2p3/2R1Q3/8/PP3PPP/1K1R4 w - - bm Qxb7+; id "P110b";
4r1k1/ppp3pp/8/3q1r2/3P2b1/4B1P1/PP1Q1PP1/R3R1K1 b - - bm Qxg2+; id "P110c";
1k1r4/pp3ppp/8/2r1q3/1b2P3/1P1B4/1PP1Q1PP/1K1R3R b - - bm Qxb2+; id "P110d";
r1bqk2r/pppp1ppp/5n2/2b1n3/4P3/1BP3Q1/PP3PPP/RNB1K1NR b KQkq - bm Bxf2+; id "WAC.056 P112a";
rnb1k1nr/pp3ppp/1bp3q1/4p3/2B1N3/5N2/PPPP1PPP/R1BQK2R w KQkq - bm Bxf7+; id "P112c";
r3q1kr/ppp5/3p2pQ/8/3PP1b1/5R2/PPP3P1/5RK1 w - - bm Rf8+; id "WAC.057 P114a";
rk1q3r/5ppp/Qp2p3/8/1b1PP3/2R5/1P3PPP/1KR5 w - - bm Rc8+; id "P114b";
5rk1/ppp3p1/5r2/3pp1B1/8/3P2Pq/PPP5/R3Q1KR b - - bm Rf1+; id "P114c";
1kr5/1p3ppp/2r5/1B1pp3/8/qP2P3/5PPP/RK1Q3R b - - bm Rc1+; id "P114d";
8/8/2R5/1p2qp1k/1P2r3/2PQ2P1/5K2/8 w - - bm Qd1+; id "WAC.058 P116a";
8/8/5R2/k1pq2p1/3r2P1/1P2QP2/2K5/8 w - - bm Qe1+; id "P116b";
8/5k2/2pq2p1/1p2R3/1P2QP1K/2r5/8/8 b - - bm Qd8+; id "P116c";
8/2k5/1p2qp2/3R2p1/K1PQ2P1/5r2/8/8 b - - bm Qe8+; id "P116d";
r1b2rk1/2p1qnbp/p1pp2p1/5p2/2PQP3/1PN2N1P/PB3PP1/3R1RK1 w - - bm Nd5; id "WAC.059 P118a";
1kr2b1r/pbnq1p2/1p2pp1p/2p5/3PQP2/P1N2NP1/1PP3BP/1KR1R3 w - - bm Ne5; id "P118b";
3r1rk1/pb3pp1/1pn2n1p/2pqp3/5P2/P1PP2P1/2P1QNBP/R1B2RK1 b - - bm Nd4; id "P118c";
1kr1r3/1pp3bp/p1n2np1/3pqp2/2P5/1P2PP1P/PBNQ1P2/1KR2B1R b - - bm Ne4; id "P118d";
rn1qr1k1/1p2np2/2p3p1/8/1pPb4/7Q/PB1P1PP1/2KR1B1R w - - bm Qh8+; id "WAC.060 P120a";
1k1rq1nr/2pn2p1/1p3p2/8/4bPp1/Q7/1PP1P1BP/R1B1RK2 w - - bm Qa8+; id "P120b";
2kr1b1r/pb1p1pp1/7q/1PpB4/8/2P3P1/1P2NP2/RN1QR1K1 b - - bm Qh1+; id "P120c";
r1b1rk2/1pp1p1bp/q7/4BpP1/8/1P3P2/2PN2P1/1K1RQ1NR b - - bm Qa1+; id "P120d";
3qrbk1/ppp1r2n/3pP2p/3P4/2P4P/1P3Q2/PB6/R4R1K w - - bm Qf7+; id "WAC.061 P122a";
1kbrq3/n2r1ppp/p2Pp3/4P3/P4P2/2Q3P1/6BP/K1R4R w - - bm Qc7+; id "P122b";
r4r1k/pb6/1p3q2/2p4p/3p4/3Pp2P/PPP1R2N/3QRBK1 b - - bm Qf2+; id "P122c";
k1r4r/6bp/2q3p1/p4p2/4p3/P2pP3/N2R1PPP/1KBRQ3 b - - bm Qc2+; id "P122d";
6r1/3Pn1qk/p1p1P1rp/2Q2p2/2P5/1P4P1/P3R2P/5RK1 b - - bm Rxg3+; id "WAC.062 P124a";
1r6/kq1nP3/pr1P1p1p/2p2Q2/5P2/1P4P1/P2R3P/1KR5 b - - bm Rxb3+; id "P124b";
5rk1/p3r2p/1p4p1/2p5/2q2P2/P1P1p1RP/3pN1QK/6R1 w - - bm Rxg6+; id "P124c";
1kr5/p2r3p/1p4p1/5p2/2P2q2/PR1p1P1P/KQ1Np3/1R6 w - - bm Rxb6+; id "P124d";
r1brnbk1/ppq2pp1/4p2p/4N3/3P4/P1PB1Q2/3B1PPP/R3R1K1 w - - bm Nxf7; id "WAC.063 P126a";
1kbnrb1r/1pp2qpp/p2p4/3N4/4P3/2Q1BP1P/PPP1B3/1K1R3R w - - bm Nxc7; id "P126b";
r3r1k1/3b1ppp/p1pb1q2/3p4/4n3/4P2P/PPQ2PP1/R1BRNBK1 b - - bm Nxf2; id "P126c";
1k1r3r/ppp1b3/2q1bp1p/4p3/3n4/P2P4/1PP2QPP/1KBNRB1R b - - bm Nxc2; id "P126d";
8/6pp/3q1p2/3n1k2/1P6/3NQ2P/5PP1/6K1 w - - bm g4+; id "WAC.064 P128a";
8/pp6/2p1q3/2k1n3/6P1/P2QN3/1PP5/1K6 w - - bm b4+; id "P128b";
6k1/5pp1/3nq2p/1p6/3N1K2/3Q1P2/6PP/8 b - - bm g5+; id "P128c";
1k6/1pp5/p2qn3/6p1/2K1N3/2P1Q3/PP6/8 b - - bm b5+; id "P128d";
1r1r1qk1/p2n1p1p/bp1Pn1pQ/2pNp3/2P2P1N/1P5B/P6P/3R1RK1 w - - bm Ne7+; id "WAC.065 P130a";
1kq1r1r1/p1p1n2p/Qp1nP1pb/3pNp2/N1P2P2/B5P1/P6P/1KR1R3 w - - bm Nd7+; id "P130b";
3r1rk1/p6p/1p5b/2p2p1n/2PnP3/BP1pN1Pq/P2N1P1P/1R1R1QK1 b - - bm Ne2+; id "P130c";
1kr1r3/p6p/b5p1/n1p2p2/3PnP2/qP1Np1PB/P1P1N2P/1KQ1R1R1 b - - bm Nd2+; id "P130d";
1k1r2r1/ppq5/1bp4p/3pQ3/8/2P2N2/PP4P1/R4R1K b - - bm Qxe5; id "WAC.066 P132a";
1r2r1k1/5qpp/p4pb1/3Qp3/8/2N2P2/1P4PP/K1R4R b - - bm Qxd5; id "P132b";
r4r1k/pp4p1/2p2n2/8/3Pq3/1BP4P/PPQ5/1K1R2R1 w - - bm Qxe4; id "P132c";
k1r4r/1p4pp/2n2p2/8/3qP3/P4PB1/5QPP/1R2R1K1 w - - bm Qxd4; id "P132d";
3r2k1/p2q4/1p4p1/3rRp1p/5P1P/6PK/P3R3/3Q4 w - - bm Rxd5; id "WAC.067 P134a";
1k2r3/4q2p/1p4p1/p1pRr3/P1P5/KP6/3R3P/4Q3 w - - bm Rxe5; id "P134b";
3q4/p3r3/6pk/5p1p/3RrP1P/1P4P1/P2Q4/3R2K1 b - - bm Rxd4; id "P134c";
4q3/3r3p/kp6/p1p5/P1PrR3/1P4P1/4Q2P/1K2R3 b - - bm Rxe4; id "P134d";
6k1/5ppp/1q6/2b5/8/2R1pPP1/1P2Q2P/7K w - - bm Qxe3; id "WAC.068 P136a";
1k6/ppp5/6q1/5b2/8/1PPp1R2/P2Q2P1/K7 w - - bm Qxd3; id "P136b";
7k/1p2q2p/2r1Ppp1/8/2B5/1Q6/5PPP/6K1 b - - bm Qxe6; id "P136c";
k7/p2q2p1/1ppP1r2/8/5B2/6Q1/PPP5/1K6 b - - bm Qxd6; id "P136d";
2k5/pppr4/4R3/4Q3/2pp2q1/8/PPP2PPP/6K1 w - - bm f3 h3; id "WAC.069 P138a";
5k2/4rppp/3R4/3Q4/1q2pp2/8/PPP2PPP/1K6 w - - bm c3 a3; id "P138b";
6k1/ppp2ppp/8/2PP2Q1/4q3/4r3/PPPR4/2K5 b - - bm f6 h6; id "P138c";
1k6/ppp2ppp/8/1Q2PP2/3q4/3r4/4RPPP/5K2 b - - bm c6 a6; id "P138d";
2kr3r/pppq1ppp/3p1n2/bQ2p3/1n1PP3/1PN1BN1P/1PP2PP1/2KR3R b - - bm Na2+; id "WAC.070 P140a";
r3rk2/ppp1qppp/2n1p3/3p2Qb/3PP1n1/P1NB1NP1/1PP2PP1/R3RK2 b - - bm Nh2+; id "P140b";
2kr3r/1pp2pp1/1pn1bn1p/1N1pp3/Bq2P3/3P1N2/PPPQ1PPP/2KR3R w - - bm Na7+; id "P140c";
r3rk2/1pp2pp1/p1nb1np1/3pp1N1/3P2qB/2N1P3/PPP1QPPP/R3RK2 w - - bm Nh7+; id "P140d";
2kr3r/pp1q1ppp/5n2/1Nb5/2Pp1B2/7Q/P4PPP/1R3RK1 w - - bm Nxa7+; id "WAC.071 P142a";
r3rk2/ppp1q1pp/2n5/5bN1/2B1pP2/Q7/PPP4P/1KR3R1 w - - bm Nxh7+; id "P142b";
1r3rk1/p4ppp/7q/2pP1b2/1nB5/5N2/PP1Q1PPP/2KR3R b - - bm Nxa2+; id "P142c";
1kr3r1/ppp4p/q7/2b1Pp2/5Bn1/2N5/PPP1Q1PP/R3RK2 b - - bm Nxh2+; id "P142d";
r3r1k1/pp1n1ppp/2p5/4Pb2/2B2P2/B1P5/P5PP/R2R2K1 w - - bm e6; id "WAC.072 P144a";
1k1r3r/ppp1n1pp/5p2/2bP4/2P2B2/5P1B/PP5P/1K2R2R w - - bm d6; id "P144b";
r2r2k1/p5pp/b1p5/2b2p2/4pB2/2P5/PP1N1PPP/R3R1K1 b - - bm e3; id "P144c";
1k2r2r/pp5p/5p1b/2p2b2/2Bp4/5P2/PPP1N1PP/1K1R3R b - - bm d3; id "P144d";
r1q3rk/1ppbb1p1/4Np1p/p3pP2/P3P3/2N4R/1PP1Q1PP/3R2K1 w - - bm Qd2; id "WAC.073 P146a";
kr3q1r/1p1bbpp1/p1pN4/2Pp3p/3P3P/R4N2/PP1Q1PP1/1K2R3 w - - bm Qe2; id "P146b";
3r2k1/1pp1q1pp/2n4r/p3p3/P3Pp2/4nP1P/1PPBB1P1/R1Q3RK b - - bm Qd7; id "P146c";
1k2r3/pp1q1pp1/r4n2/3p3p/2pP3P/P1Pn4/1P1BBPP1/KR3Q1R b - - bm Qe7; id "P146d";
5r1k/pp4pp/2p5/2b1P3/4Pq2/1PB1p3/P3Q1PP/3N2K1 b - - bm Qf1+; id "WAC.074 P148a";
k1r5/pp4pp/5p2/3P1b2/2qP4/3p1BP1/PP1Q3P/1K2N3 b - - bm Qc1+; id "P148b";
3n2k1/p3q1pp/1pb1P3/4pQ2/2B1p3/2P5/PP4PP/5R1K w - - bm Qf8+; id "P148c";
1k2n3/pp1q3p/3P1bp1/2Qp4/3p1B2/5P2/PP4PP/K1R5 w - - bm Qc8+; id "P148d";
r3r1k1/pppq1ppp/8/8/1Q4n1/7P/PPP2PP1/RNB1R1K1 b - - bm Qd6; id "WAC.075 P150a";
1k1r3r/ppp1qppp/8/8/1n4Q1/P7/1PP2PPP/1K1R1BNR b - - bm Qe6; id "P150b";
rnb1r1k1/ppp2pp1/7p/1q4N1/8/8/PPPQ1PPP/R3R1K1 w - - bm Qd3; id "P150c";
1k1r1bnr/1pp2ppp/p7/1N4q1/8/8/PPP1QPPP/1K1R3R w - - bm Qe3; id "P150d";
r1b1qrk1/2p2ppp/pb1pnn2/1p2pNB1/3PP3/1BP5/PP2QPPP/RN1R2K1 w - - bm Bxf6; id "WAC.076 P152a";
1krq1b1r/ppp2p2/2nnp1bp/1BNp2p1/3PP3/5PB1/PPPQ2PP/1K2R1NR w - - bm Bxc6; id "P152b";
rn1r2k1/pp2qppp/1bp5/3pp3/1P2Pnb1/PB1PNN2/2P2PPP/R1B1QRK1 b - - bm Bxf3; id "P152c";
1k2r1nr/pppq2pp/5pb1/3pp3/1bnP2P1/2NNP1BP/PPP2P2/1KRQ1B1R b - - bm Bxc3; id "P152d";
3r2k1/ppp2ppp/6q1/b4n2/3nQB2/2p5/P4PPP/RN3RK1 b - - bm Ng3; id "WAC.077 P154a";
1k2r3/ppp2ppp/1q6/2n4b/2BQn3/5p2/PPP4P/1KR3NR b - - bm Nb3; id "P154b";
rn3rk1/p4ppp/2P5/3Nqb2/B4N2/6Q1/PPP2PPP/3R2K1 w - - bm Ng6; id "P154c";
1kr3nr/ppp4p/5P2/2bqN3/2N4B/1Q6/PPP2PPP/1K2R3 w - - bm Nb6; id "P154d";
r2q3r/ppp2k2/4nbp1/5Q1p/2P1NB2/8/PP3P1P/3RR1K1 w - - bm Ng5+; id "WAC.078 P156a";
r3q2r/2k2ppp/1pbn4/p1Q5/2BN1P2/8/P1P3PP/1K1RR3 w - - bm Nb5+; id "P156b";
3rr1k1/pp3p1p/8/2p1nb2/5q1P/4NBP1/PPP2K2/R2Q3R b - - bm Ng4+; id "P156c";
1k1rr3/p1p3pp/8/2bn1p2/P1q5/1PBN4/2K2PPP/R3Q2R b - - bm Nb4+; id "P156d";
r3k2r/pbp2pp1/3b1n2/1p6/3P3p/1B2N1Pq/PP1PQP1P/R1B2RK1 b kq - bm Qxh2+; id "WAC.079 P158a";
r1b2rk1/pp1pqp1p/1b2n1pQ/3p3P/1P6/3B1N2/PBP2PP1/R3K2R w kq - bm Qxh7+; id "P158c";
r4rk1/p1B1bpp1/1p2pn1p/8/2PP4/3B1P2/qP2QP1P/3R1RK1 w - - bm Ra1; id "WAC.080 P160a";
1kr4r/1ppb1B1p/p1np2p1/8/4PP2/2P1B3/P1PQ2Pq/1KR1R3 w - - bm Rh1; id "P160b";
3r1rk1/Qp2qp1p/3b1p2/2pp4/8/1P2PN1P/P1b1BPP1/R4RK1 b - - bm Ra8; id "P160c";
1kr1r3/p1pq2pQ/2p1b3/4pp2/8/P1NP2P1/1PPB1b1P/1KR4R b - - bm Rh8; id "P160d";
r4rk1/1bR1bppp/4pn2/1p2N3/1P6/P3P3/4BPPP/3R2K1 b - - bm Bd6; id "WAC.081 P162a";
1kr4r/pppb1Rb1/2np4/3N2p1/6P1/3P3P/PPPB4/1K2R3 b - - bm Be6; id "P162b";
3r2k1/4bppp/p3p3/1p6/1P2n3/4PN2/1Br1BPPP/R4RK1 w - - bm Bd3; id "P162c";
1k2r3/pppb4/3p3p/6p1/3n2P1/2NP4/PPPB1rB1/1KR4R w - - bm Be3; id "P162d";
3rr1k1/pp3pp1/4b3/8/2P1B2R/6QP/P3q1P1/5R1K w - - bm Bh7+; id "WAC.082 P164a";
1k1rr3/1pp3pp/3b4/8/R2B1P2/PQ6/1P1q3P/K1R5 w - - bm Ba7+; id "P164b";
5r1k/p3Q1p1/6qp/2p1b2r/8/4B3/PP3PP1/3RR1K1 b - - bm Bh2+; id "P164c";
k1r5/1p1Q3p/pq6/r2b1p2/8/3B4/1PP3PP/1K1RR3 b - - bm Ba2+; id "P164d";
3rr1k1/ppqbRppp/2p5/8/3Q1n2/2P3N1/PPB2PPP/3R2K1 w - - bm Qxd7; id "WAC.083 P166a";
1k1rr3/pppRbqpp/5p2/8/2n1Q3/1N3P2/PPP2BPP/1K2R3 w - - bm Qxe7; id "P166b";
3r2k1/ppb2ppp/2p3n1/3q1N2/8/2P5/PPQBrPPP/3RR1K1 b - - bm Qxd2; id "P166c";
1k2r3/ppp2bpp/1n3p2/2N1q3/8/5P2/PPPrBQPP/1K1RR3 b - - bm Qxe2; id "P166d";
r2q1r1k/2p1b1pp/p1n5/1p1Q1bN1/4n3/1BP1B3/PP3PPP/R4RK1 w - - bm Qg8+; id "WAC.084 P168a";
k1r1q2r/pp1b1p2/5n1p/1Nb1Q1p1/3n4/3B1PB1/PPP3PP/1KR4R w - - bm Qb8+; id "P168b";
r4rk1/pp3ppp/1bp1b3/4N3/1P1q1Bn1/P1N5/2P1B1PP/R2Q1R1K b - - bm Qg1+; id "P168c";
1kr4r/ppp3pp/3b1pb1/3N4/1nB1q1P1/5N1P/PP1B1P2/K1R1Q2R b - - bm Qb1+; id "P168d";
kr2R3/p4r2/2pq4/2N2p1p/3P2p1/Q5P1/5P1P/5BK1 w - - bm Na6; id "WAC.085 P170a";
3R2rk/2r4p/4qp2/p1p2N2/1p2P3/1P5Q/P1P5/1KB5 w - - bm Nh6; id "P170b";
5bk1/5p1p/q5p1/3p2P1/2n2P1P/2PQ4/P4R2/KR2r3 b - - bm Na3; id "P170c";
1kb5/p1p5/1p5q/1P2p3/P1P2n2/4QP2/2R4P/3r2RK b - - bm Nh3; id "P170d";
8/p7/1ppk1n2/5ppp/P1PP4/2P1K1P1/5N1P/8 b - - bm Ng4+; id "WAC.086 P172a";
8/7p/2n1kpp1/ppp5/4PP1P/1P1K1P2/P1N5/8 b - - bm Nb4+; id "P172b";
8/5n1p/2p1k1p1/p1pp4/5PPP/1PPK1N2/P7/8 w - - bm Ng5+; id "P172c";
8/p1n5/1p1k1p2/4pp1p/PPP5/2N1KPP1/7P/8 w - - bm Nb5+; id "P172d";
8/p3k1p1/4r3/2ppNpp1/PP1P4/2P3KP/5P2/8 b - - bm Rxe5; id "WAC.087 P174a";
8/1p1k3p/3r4/1ppNpp2/4P1PP/PK3P2/2P5/8 b - - bm Rxd5; id "P174b";
8/5p2/2p3kp/pp1p4/2PPnPP1/4R3/P3K1P1/8 w - - bm Rxe4; id "P174c";
8/2p5/pk3p2/4p1pp/1PPnPP2/3R4/1P1K3P/8 w - - bm Rxd4; id "P174d";
r6k/p1Q4p/2p1b1rq/4p3/B3P3/4P3/PPP3P1/4RRK1 b - - bm Rxg2+; id "WAC.088 P176a";
k6r/p4Q1p/qr1b1p2/3p4/3P3B/3P4/1P3PPP/1KRR4 b - - bm Rxb2+; id "P176b";
4rrk1/ppp3p1/4p3/b3p3/4P3/2P1B1RQ/P1q4P/R6K w - - bm Rxg7+; id "P176c";
1krr4/1p3ppp/3p4/3p3b/3P4/QR1B1P2/P4q1P/K6R w - - bm Rxb7+; id "P176d";
1r3b1k/p4rpp/4pp2/3q4/2ppbPPQ/6RK/PP5P/2B1NR2 b - - bm g5; id "WAC.089 P178a";
k1b3r1/ppr4p/2pp4/4q3/QPPbpp2/KR6/P5PP/2RN1B2 b - - bm b5; id "P178b";
2b1nr2/pp5p/6rk/2PPBppq/3Q4/4PP2/P4RPP/1R3B1K w - - bm g4; id "P178c";
2rn1b2/p5pp/kr6/qppBPP2/4Q3/2PP4/PPR4P/K1B3R1 w - - bm b4; id "P178d";
3qrrk1/1pp2pp1/1p2bn1p/5N2/2P5/P1P3B1/1P4PP/2Q1RRK1 w - - bm Nxg7; id "WAC.090 P180a";
1krrq3/1pp2pp1/p1nb2p1/2N5/5P2/1B3P1P/PP4P1/1KRR1Q2 w - - bm Nxb7; id "P180b";
2q1rrk1/1p4pp/p1p3b1/2p5/5n2/1P2BN1P/1PP2PP1/3QRRK1 b - - bm Nxg2; id "P180c";
1krr1q2/pp4p1/1b3p1p/5p2/2n5/P1NB2P1/1PP2PP1/1KRRQ3 b - - bm Nxb2; id "P180d";
2qr2k1/4b1p1/2p2p1p/1pP1p3/p2nP3/PbQNB1PP/1P3PK1/4RB2 b - - bm Be6; id "WAC.091 P182a";
1k2rq2/1p1b4/p1p2p2/3p1Pp1/3Pn2p/PP1BNQbP/1KP3P1/2BR4 b - - bm Bd6; id "P182b";
4rb2/1p3pk1/pBqnb1pp/P2Np3/1Pp1P3/2P2P1P/4B1P1/2QR2K1 w - - bm Be3; id "P182c";
2br4/1kp3p1/pp1bnqBp/3pN2P/3P1pP1/P1P2P2/1P1B4/1K2RQ2 w - - bm Bd3; id "P182d";
r4rk1/1p2ppbp/p2pbnp1/q7/3BPPP1/2N2B2/PPP4P/R2Q1RK1 b - - bm Bxg4; id "WAC.092 P184a";
1kr4r/pbpp2p1/1pnbp2p/7q/1PPPB3/2B2N2/P4PPP/1KR1Q2R b - - bm Bxb4; id "P184b";
r2q1rk1/ppp4p/2n2b2/3bppp1/Q7/P2PBNP1/1P2PPBP/R4RK1 w - - bm Bxg5; id "P184c";
1kr1q2r/p4ppp/2b2n2/1pppb3/7Q/1PNBP2P/PBPP2P1/1KR4R w - - bm Bxb5; id "P184d";
r1b1k1nr/pp3pQp/4pq2/3pn3/8/P1P5/2P2PPP/R1B1KBNR w KQkq - bm Bh6; id "WAC.093 P186a";
r1b1kbnr/2p2ppp/p1p5/8/3PN3/4PQ2/PP3PqP/R1B1K1NR b KQkq - bm Bh3; id "P186c";
8/k7/p7/3Qp2P/n1P5/3KP3/1q6/8 b - - bm e4+; id "WAC.094 P188a";
8/7k/7p/P2pQ3/5P1n/3PK3/6q1/8 b - - bm d4+; id "P188b";
8/1Q6/3kp3/N1p5/3qP2p/P7/K7/8 w - - bm e5+; id "P188c";
8/6Q1/3pk3/5p1N/p2Pq3/7P/7K/8 w - - bm d5+; id "P188d";
2r5/1r6/4pNpk/3pP1qp/8/2P1QP2/5PK1/R7 w - - bm Ng4+; id "WAC.095 P190a";
5r2/6r1/kpNp4/pq1Pp3/8/2PQ1P2/1KP5/7R w - - bm Nb4+; id "P190b";
r7/5pk1/2p1qp2/8/3Pp1QP/4PnPK/1R6/2R5 b - - bm Ng5+; id "P190c";
7r/1kp5/2pq1p2/8/PQ1pP3/KPnP4/6R1/5R2 b - - bm Nb5+; id "P190d";
r1b4k/ppp2Bb1/6Pp/3pP3/1qnP1p1Q/8/PPP3P1/1K1R3R w - - bm Qd8+ b3; id "WAC.096 P192a";
k4b1r/1bB2ppp/pP6/3Pp3/Q1p1Pnq1/8/1P3PPP/R3R1K1 w - - bm Qe8+ g3; id "P192b";
1k1r3r/ppp3p1/8/1QNp1P1q/3Pp3/6pP/PPP2bB1/R1B4K b - - bm Qd1+ b6; id "P192c";
r3r1k1/1p3ppp/8/q1P1pNQ1/3pP3/Pp6/1Bb2PPP/K4B1R b - - bm Qe1+ g6; id "P192d";
6k1/5p2/p5np/4B3/3P4/1PP1q3/P3r1QP/6RK w - - bm Qa8+; id "WAC.097 P194a";
1k6/2p5/pn5p/3B4/4P3/3q1PP1/PQ1r3P/KR6 w - - bm Qh8+; id "P194b";
6rk/p3R1qp/1pp1Q3/3p4/4b3/P5NP/5P2/6K1 b - - bm Qa1+; id "P194c";
kr6/pq1R3p/3Q1pp1/4p3/3b4/PN5P/2P5/1K6 b - - bm Qh1+; id "P194d";
1r3rk1/5pb1/p2p2p1/Q1n1q2p/1NP1P3/3p1P1B/PP1R3P/1K2R3 b - - bm Nxe4; id "WAC.098 P196a";
1kr3r1/1bp5/1p2p2p/p2q1n1Q/3P1PN1/B1P1p3/P3R1PP/3R2K1 b - - bm Nxd4; id "P196b";
1k2r3/pp1r3p/3P1p1b/1np1p3/q1N1Q2P/P2P2P1/5PB1/1R3RK1 w - - bm Nxe5; id "P196c";
3r2k1/p3r1pp/b1p1P3/3p1pn1/P2Q1N1q/1P2P2P/1BP5/1KR3R1 w - - bm Nxd5; id "P196d";
r1bq1r1k/1pp1Np1p/p2p2pQ/4R3/n7/8/PPPP1PPP/R1B3K1 w - - bm Rh5; id "WAC.099 P198a";
k1r1qb1r/p1pN1pp1/Qp2p2p/3R4/7n/8/PPP1PPPP/1K3B1R w - - bm Ra5; id "P198b";
r1b3k1/pppp1ppp/8/N7/4r3/P2P2Pq/1PP1nP1P/R1BQ1R1K b - - bm Rh4; id "P198c";
1k3b1r/ppp1pppp/8/7N/3r4/qP2P2P/P1Pn1PP1/K1R1QB1R b - - bm Ra4; id "P198d";
8/k1b5/P4p2/1Pp2p1p/K1P2P1P/8/3B4/8 w - - bm Be3 b6+; id "WAC.100 P200a";
8/5b1k/2p4P/p1p2pP1/P1P2P1K/8/4B3/8 w - - bm Bd3 g6+; id "P200b";
8/3b4/8/k1p2p1p/1pP2P1P/p4P2/K1B5/8 b - - bm Be6 b3+; id "P200c";
8/4b3/8/p1p2p1k/P1P2Pp1/2P4p/5B1K/8 b - - bm Bd6 g3+; id "P200d";
5rk1/p5pp/8/8/2Pbp3/1P4P1/7P/4RN1K b - - bm Bc3; id "WAC.101 P202a";
1kr5/pp5p/8/8/3pbP2/1P4P1/P7/K1NR4 b - - bm Bf3; id "P202b";
4rn1k/7p/1p4p1/2pBP3/8/8/P5PP/5RK1 w - - bm Bc6; id "P202c";
k1nr4/p7/1p4p1/3PBp2/8/8/PP5P/1KR5 w - - bm Bf6; id "P202d";
2Q2n2/2R4p/1p1qpp1k/8/3P3P/3B2P1/5PK1/r7 w - - bm Qxf8+; id "WAC.102 P204a";
2n2Q2/p4R2/k1ppq1p1/8/P3P3/1P2B3/1KP5/7r w - - bm Qxc8+; id "P204b";
R7/5pk1/3b2p1/3p3p/8/1P1QPP1K/2r4P/2q2N2 b - - bm Qxf1+; id "P204c";
7R/1kp5/1p2b3/p3p3/8/K1PPQ1P1/P4r2/2N2q2 b - - bm Qxc1+; id "P204d";
6k1/2pb1r1p/3p1PpQ/p1nPp3/1q2P3/2N2P2/PrB5/2K3RR w - - bm Qxg6+; id "WAC.103 P206a";
1k6/p1r1bp2/QpP1p3/3pPn1p/3P2q1/2P2N2/5BrP/RR3K2 w - - bm Qxb6+; id "P206b";
2k3rr/pRb5/2n2p2/1Q2p3/P1NpP3/3P1pPq/2PB1R1P/6K1 b - - bm Qxg3+; id "P206c";
rr3k2/5bRp/2p2n2/3p2Q1/3PpN1P/qPp1P3/P1R1BP2/1K6 b - - bm Qxb3+; id "P206d";
b4r1k/pq2rp2/1p1bpn1p/3PN2n/2P2P2/P2B3K/1B2Q2N/3R2R1 w - - bm Qxh5; id "WAC.104 P208a";
k1r4b/2pr2qp/p1npb1p1/n2NP3/2P2P2/K3B2P/N2Q2B1/1R2R3 w - - bm Qxa5; id "P208b";
3r2r1/1b2q2n/p2b3k/2p2p2/3pn2N/1P1BPN1P/PQ2RP2/B4R1K b - - bm Qxh4; id "P208c";
1r2r3/n2q2b1/k3b2p/2p2p2/N2np3/P1NPB1P1/2PR2QP/K1R4B b - - bm Qxa4; id "P208d";
r2r2k1/pb3ppp/1p1bp3/7q/3n2nP/PP1B2P1/1B1N1P2/RQ2NRK1 b - - bm Bxg3 Qxh4; id "WAC.105 P210a";
1k2r2r/ppp3bp/3pb1p1/q7/Pn2n3/1P2B1PP/2P1N1B1/1KRN2QR b - - bm Bxb3 Qxa4; id "P210b";
rq2nrk1/1b1n1p2/pp1b2p1/3N2Np/7Q/1P1BP3/PB3PPP/R2R2K1 w - - bm Bxg6 Qxh5; id "P210c";
1krn2qr/2p1n1b1/1p2b1pp/pN2N3/Q7/3PB1P1/PPP3BP/1K2R2R w - - bm Bxb6 Qxa5; id "P210d";
4rrk1/pppb4/7p/3P2pq/3Qn3/P5P1/1PP4P/R3RNNK b - - bm Nf2+; id "WAC.106 P212a";
1krr4/4bppp/p7/qp2P3/3nQ3/1P5P/P4PP1/KNNR3R b - - bm Nc2+; id "P212b";
r3rnnk/1pp4p/p5p1/3qN3/3p2PQ/7P/PPPB4/4RRK1 w - - bm Nf7+; id "P212c";
knnr3r/p4pp1/1p5p/3Nq3/QP2p3/P7/4BPPP/1KRR4 w - - bm Nc7+; id "P212d";
5n2/pRrk2p1/P4p1p/4p3/3N4/5P2/6PP/6K1 w - - bm Nb5; id "WAC.107 P214a";
2n5/1p2krRp/p1p4P/3p4/4N3/2P5/PP6/1K6 w - - bm Ng5; id "P214b";
6k1/6pp/5p2/3n4/4P3/p4P1P/PrRK2P1/5N2 b - - bm Nb4; id "P214c";
1k6/pp6/2p5/4n3/3P4/P1P4p/1P2KRrP/2N5 b - - bm Ng4; id "P214d";
r5k1/1q4pp/2p5/p1Q5/2P5/5R2/4RKPP/r7 w - - bm Qe5; id "WAC.108 P216a";
1k5r/pp4q1/5p2/5Q1p/5P2/2R5/PPKR4/7r w - - bm Qd5; id "P216b";
R7/4rkpp/5r2/2p5/P1q5/2P5/1Q4PP/R5K1 b - - bm Qe4; id "P216c";
7R/ppkr4/2r5/5p2/5q1P/5P2/PP4Q1/1K5R b - - bm Qd4; id "P216d";
rn2k1nr/pbp2ppp/3q4/1p2N3/2p5/QP6/PB1PPPPP/R3KB1R b KQkq - bm c3; id "WAC.109 P218a";
r3kb1r/pb1ppppp/qp6/2P5/1P2n3/3Q4/PBP2PPP/RN2K1NR w KQkq - bm c6; id "P218c";
2kr4/bp3p2/p2p2b1/P7/2q5/1N4B1/1PPQ2P1/2KR4 b - - bm Be3; id "WAC.110 P220a";
4rk2/2p3pb/1b2p2p/7P/5q2/1B4N1/1P2QPP1/4RK2 b - - bm Bd3; id "P220b";
2kr4/1ppq2p1/1n4b1/2Q5/p7/P2P2B1/BP3P2/2KR4 w - - bm Be6; id "P220c";
4rk2/1p2qpp1/1b4n1/5Q2/7p/1B2P2P/2P3PB/4RK2 w - - bm Bd6; id "P220d";
6k1/p5p1/5p2/2P2Q2/3pN2p/3PbK1P/7P/6q1 b - - bm Qf1+; id "WAC.111 P222a";
1k6/1p5p/2p5/2Q2P2/p2Np3/P1KbP3/P7/1q6 b - - bm Qc1+; id "P222b";
6Q1/7p/3pBk1p/3Pn2P/2p2q2/5P2/P5P1/6K1 w - - bm Qf8+; id "P222c";
1Q6/p7/p1kBp3/P2nP3/2q2p2/2P5/1P5P/1K6 w - - bm Qc8+; id "P222d";
r4kr1/ppp5/4bq1b/7B/2PR1Q1p/2N3P1/PP3P1P/2K1R3 w - - bm Rxe6; id "WAC.112 P224a";
1rk4r/5ppp/b1qb4/B7/p1Q1RP2/1P3N2/P1P3PP/3R1K2 w - - bm Rxd6; id "P224b";
2k1r3/pp3p1p/2n3p1/2pr1q1P/7b/4BQ1B/PPP5/R4KR1 b - - bm Rxe3; id "P224c";
3r1k2/p1p3pp/1p3n2/P1q1rp2/b7/B1QB4/5PPP/1RK4R b - - bm Rxd3; id "P224d";
rnbqkb1r/1p3ppp/5N2/1p2p1B1/2P5/8/PP2PPPP/R2QKB1R b KQkq - bm Qxf6; id "WAC.113 P226a";
r2qkb1r/pp2pppp/8/2p5/1P2P1b1/5n2/1P3PPP/RNBQKB1R w KQkq - bm Qxf3; id "P226c";
r1b1rnk1/1p4pp/p1p2p2/3pN2n/3P1PPq/2NBPR1P/PPQ5/2R3K1 w - - bm Bxh7+; id "WAC.114 P228a";
1knr1b1r/pp4p1/2p2p1p/n2Np3/qPP1P3/P1RPBN2/5QPP/1K3R2 w - - bm Bxa7+; id "P228b";
2r3k1/ppq5/2nbpr1p/3p1ppQ/3Pn2N/P1P2P2/1P4PP/R1B1RNK1 b - - bm Bxh2+; id "P228c";
1k3r2/5qpp/p1rpbn2/Qpp1p3/N2nP3/2P2P1P/PP4P1/1KNR1B1R b - - bm Bxa2+; id "P228d";
4N2k/5rpp/1Q6/p3q3/8/P5P1/1P3P1P/5K2 w - - bm Nd6; id "WAC.115 P230a";
k2N4/ppr5/6Q1/3q3p/8/1P5P/P1P3P1/2K5 w - - bm Ne6; id "P230b";
5k2/1p3p1p/p5p1/8/P3Q3/1q6/5RPP/4n2K b - - bm Nd3; id "P230c";
2k5/p1p3p1/1p5p/8/3Q3P/6q1/PPR5/K2n4 b - - bm Ne3; id "P230d";
r2r2k1/2p2ppp/p7/1p2P1n1/P6q/5P2/1PB1QP1P/R5RK b - - bm Rd2; id "WAC.116 P232a";
1k2r2r/ppp2p2/7p/1n1P2p1/q6P/2P5/P1PQ1BP1/KR5R b - - bm Re2; id "P232b";
r5rk/1pb1qp1p/5p2/p6Q/1P2p1N1/P7/2P2PPP/R2R2K1 w - - bm Rd7; id "P232c";
kr5r/p1pq1bp1/2p5/Q6p/1N1p2P1/7P/PPP2P2/1K2R2R w - - bm Re7; id "P232d";
3r1rk1/q4ppp/p1Rnp3/8/1p6/1N3P2/PP3QPP/3R2K1 b - - bm Ne4; id "WAC.117 P234a";
1kr1r3/ppp4q/3pnR1p/8/6p1/2P3N1/PPQ3PP/1K2R3 b - - bm Nd4; id "P234b";
3r2k1/pp3qpp/1n3p2/1P6/8/P1rNP3/Q4PPP/3R1RK1 w - - bm Ne5; id "P234c";
1k2r3/ppq3pp/2p3n1/6P1/8/3PNr1P/PPP4Q/1KR1R3 w - - bm Nd5; id "P234d";
r5k1/pb2rpp1/1p6/2p4q/5R2/2PB2Q1/P1P3PP/5R1K w - - bm Rh4; id "WAC.118 P236a";
1k5r/1ppr2bp/6p1/q4p2/2R5/1Q2BP2/PP3P1P/K1R5 w - - bm Ra4; id "P236b";
5r1k/p1p3pp/2pb2q1/5r2/2P4Q/1P6/PB2RPP1/R5K1 b - - bm Rh5; id "P236c";
k1r5/pp3p1p/1q2bp2/2r5/Q4P2/6P1/1PPR2BP/1K5R b - - bm Ra5; id "P236d";
r2qr1k1/p1p2ppp/2p5/2b5/4nPQ1/3B4/PPP3PP/R1B2R1K b - - bm Qxd3; id "WAC.119 P238a";
1k1rq2r/ppp2p1p/5p2/5b2/1QPn4/4B3/PP3PPP/K1R2B1R b - - bm Qxe3; id "P238b";
r1b2r1k/ppp3pp/3b4/4Npq1/2B5/2P5/P1P2PPP/R2QR1K1 w - - bm Qxd6; id "P238c";
k1r2b1r/pp3ppp/4b3/1qpN4/5B2/5P2/PPP2P1P/1K1RQ2R w - - bm Qxe6; id "P238d";
r4rk1/1bn2qnp/3p1B1Q/p2P1pP1/1pp5/5N1P/PPB2P2/2KR3R w - - bm Rhg1 g6; id "WAC.120 P240a";
1kr4r/pnq2nb1/Q1B1p3/1Pp1P2p/5pp1/P1N5/2P2BPP/R3RK2 w - - bm Rab1 b6; id "P240b";
2kr3r/ppb2p2/5n1p/1PP5/P2p1Pp1/3P1b1q/1BN2QNP/R4RK1 b - - bm Rhg8 g3; id "P240c";
r3rk2/2p2bpp/p1n5/5PP1/1pP1p2P/q1b1P3/PNQ2NB1/1KR4R b - - bm Rab8 b3; id "P240d";
6k1/5p1p/2bP2pb/4p3/2P5/1p1pNPPP/1P1Q1BK1/1q6 b - - bm Bxf3+; id "WAC.121 P242a";
1k6/p1p5/bp2Pb2/3p4/5P2/PPPNp1p1/1KB1Q1P1/6q1 b - - bm Bxc3+; id "P242b";
1Q6/1p1q1bk1/1P1Pnppp/2p5/4P3/2Bp2PB/5P1P/6K1 w - - bm Bxf6+; id "P242c";
6Q1/1kb1q1p1/pppnP1P1/5p2/3P4/BP2pB2/P1P5/1K6 w - - bm Bxc6+; id "P242d";
1k6/ppp4p/1n2pq2/1N2Rb2/2P2Q2/8/P4KPP/3r1B2 b - - bm Rxf1+; id "WAC.122 P244a";
6k1/p4ppp/2qp2n1/2bR2N1/2Q2P2/8/PPK4P/2B1r3 b - - bm Rxc1+; id "P244b";
3R1b2/p4kpp/8/2p2q2/1n2rB2/1N2PQ2/PPP4P/1K6 w - - bm Rxf8+; id "P244c";
2b1R3/ppk4p/8/2q2p2/2Br2n1/2QP2N1/P4PPP/6K1 w - - bm Rxc8+; id "P244d";
6k1/1b2rp2/1p4p1/3P4/PQ4P1/2N2q2/5P2/3R2K1 b - - bm Bxd5 Rc7 Re6; id "WAC.123 P246a";
1k6/2pr2b1/1p4p1/4P3/1P4QP/2q2N2/2P5/1K2R3 b - - bm Bxe5 Rf7 Rd6; id "P246b";
3r2k1/5p2/2n2Q2/pq4p1/3p4/1P4P1/1B2RP2/6K1 w - - bm Bxd4 Rc2 Re3; id "P246c";
1k2r3/2p5/2Q2n2/1p4qp/4p3/1P4P1/2PR2B1/1K6 w - - bm Bxe4 Rf2 Rd3; id "P246d";
6k1/3r4/2R5/P5P1/1P4p1/8/4rB2/6K1 b - - bm g3; id "WAC.124 P248a";
1k6/4r3/5R2/1P5P/1p4P1/8/2Br4/1K6 b - - bm b3; id "P248b";
6k1/4Rb2/8/1p4P1/p5p1/2r5/3R4/6K1 w - - bm g6; id "P248c";
1k6/2bR4/8/1P4p1/1p5p/5r2/4R3/1K6 w - - bm b6; id "P248d";
r1bqr1k1/pp3ppp/1bp5/3n4/3B4/2N2P1P/PPP1B1P1/R2Q1RK1 b - - bm Bxd4+; id "WAC.125 P250a";
1k1rqb1r/ppp3pp/5pb1/4n3/4B3/P1P2N2/1P1B1PPP/1KR1Q2R b - - bm Bxe4+; id "P250b";
r2q1rk1/ppp1b1p1/2n2p1p/3b4/3N4/1BP5/PP3PPP/R1BQR1K1 w - - bm Bxd5+; id "P250c";
1kr1q2r/1p1b1ppp/p1p2n2/4b3/4N3/5PB1/PPP3PP/1K1RQB1R w - - bm Bxe5+; id "P250d";
r5r1/pQ5p/1qp2R2/2k1p3/4P3/2PP4/P1P3PP/6K1 w - - bm Rxc6+; id "WAC.126 P252a";
1r5r/p5Qp/2R2pq1/3p1k2/3P4/4PP2/PP3P1P/1K6 w - - bm Rxf6+; id "P252b";
6k1/p1p3pp/2pp4/4p3/2K1P3/1QP2r2/Pq5P/R5R1 b - - bm Rxc3+; id "P252c";
1k6/pp3p1p/4pp2/3p4/3P1K2/2r2PQ1/P5qP/1R5R b - - bm Rxf3+; id "P252d";
2k4r/1pr1n3/p1p1q2p/5pp1/3P1P2/P1P1P3/1R2Q1PP/1RB3K1 w - - bm Rxb7; id "WAC.127 P254a";
r4k2/3n1rp1/p2q1p1p/1pp5/2P1P3/3P1P1P/PP1Q2R1/1K3BR1 w - - bm Rxg7; id "P254b";
1rb3k1/1r2q1pp/p1p1p3/3p1p2/5PP1/P1P1Q2P/1PR1N3/2K4R b - - bm Rxb2; id "P254c";
1k3br1/pp1q2r1/3p1p1p/2p1p3/1PP5/P2Q1P1P/3N1RP1/R4K2 b - - bm Rxg2; id "P254d";
6rk/1pp2Qrp/3p1B2/1pb1p2R/3n1q2/3P4/PPP3PP/R6K w - - bm Qg6; id "WAC.128 P256a";
kr6/prQ2pp1/2B1p3/R2p1bp1/2q1n3/4P3/PP3PPP/K6R w - - bm Qb6; id "P256b";
r6k/ppp3pp/3p4/3N1Q2/1PB1P2r/3P1b2/1PP2qRP/6RK b - - bm Qg3; id "P256c";
k6r/pp3ppp/4p3/2Q1N3/r2P1BP1/2b1P3/PRq2PP1/KR6 b - - bm Qb3; id "P256d";
3r1r1k/1b2b1p1/1p5p/2p1Pp2/q1B2P2/4P2P/1BR1Q2K/6R1 b - - bm Bf3; id "WAC.129 P258a";
k1r1r3/1p1b2b1/p5p1/2pP1p2/2P2B1q/P2P4/K2Q1RB1/1R6 b - - bm Bc3; id "P258b";
6r1/1br1q2k/4p2p/Q1b2p2/2P1pP2/1P5P/1B2B1P1/3R1R1K w - - bm Bf6; id "P258c";
1r6/k2q1rb1/p2p4/2p2b1Q/2Pp1P2/P5P1/1P1B2B1/K1R1R3 w - - bm Bc6; id "P258d";
6k1/1pp3q1/5r2/1PPp4/3P1pP1/3Qn2P/3B4/4R1K1 b - - bm Qh6 Qh8; id "WAC.130 P260a";
1k6/1q3pp1/2r5/4pPP1/1Pp1P3/P2nQ3/4B3/1K1R4 b - - bm Qa6 Qa8; id "P260b";
4r1k1/3b4/3qN2p/3p1Pp1/1ppP4/5R2/1PP3Q1/6K1 w - - bm Qh3 Qh1; id "P260c";
1k1r4/4b3/p2Nq3/1pP1p3/4Ppp1/2R5/1Q3PP1/1K6 w - - bm Qa3 Qa1; id "P260d";
2rq1bk1/p4p1p/1p4p1/3b4/3B1Q2/8/P4PpP/3RR1K1 w - - bm Re8; id "WAC.131 P262a";
1kb1qr2/p1p4p/1p4p1/4b3/2Q1B3/8/PpP4P/1K1RR3 w - - bm Rd8; id "P262b";
3rr1k1/p4pPp/8/3b1q2/3B4/1P4P1/P4P1P/2RQ1BK1 b - - bm Re1; id "P262c";
1k1rr3/pPp4p/8/2q1b3/4B3/1P4P1/P1P4P/1KB1QR2 b - - bm Rd1; id "P262d";
4r1k1/5bpp/2p5/3pr3/8/1B3pPq/PPR2P2/2R2QK1 b - - bm Re1; id "WAC.132 P264a";
1k1r4/ppb5/5p2/3rp3/8/qPp3B1/2P2RPP/1KQ2R2 b - - bm Rd1; id "P264b";
2r2qk1/ppr2p2/1b3PpQ/8/3PR3/2P5/5BPP/4R1K1 w - - bm Re8; id "P264c";
1kq2r2/2p2rpp/QpP3b1/8/3RP3/5P2/PPB5/1K1R4 w - - bm Rd8; id "P264d";
r1b1k2r/1pp1q2p/p1n3p1/3QPp2/8/1BP3B1/P5PP/3R1RK1 w kq - bm Bh4; id "WAC.133 P266a";
3r1rk1/p5pp/1bp3b1/8/3qpP2/P1N3P1/1PP1Q2P/R1B1K2R b kq - bm Bh5; id "P266c";
3r2k1/p6p/2Q3p1/4q3/2P1p3/P3Pb2/1P3P1P/2K2BR1 b - - bm Rd1+; id "WAC.134 P268a";
1k2r3/p6p/1p3Q2/3q4/3p1P2/2bP3P/P1P3P1/1RB2K2 b - - bm Re1+; id "P268b";
2k2br1/1p3p1p/p3pB2/2p1P3/4Q3/2q3P1/P6P/3R2K1 w - - bm Rd8+; id "P268c";
1rb2k2/p1p3p1/2Bp3p/3P1p2/3Q4/1P3q2/P6P/1K2R3 w - - bm Re8+; id "P268d";
3r1r1k/N2qn1pp/1p2np2/2p5/2Q1P2N/3P4/PP4PP/3R1RK1 b - - bm Nd4; id "WAC.135 P270a";
k1r1r3/pp1nq2N/2pn2p1/5p2/N2P1Q2/4P3/PP4PP/1KR1R3 b - - bm Ne4; id "P270b";
3r1rk1/pp4pp/3p4/2q1p2n/2P5/1P2NP2/n2QN1PP/3R1R1K w - - bm Nd5; id "P270c";
1kr1r3/pp4pp/4p3/n2p1q2/5P2/2PN2P1/PP1NQ2n/K1R1R3 w - - bm Ne5; id "P270d";
6kr/1q2r1p1/1p2N1Q1/5p2/1P1p4/6R1/7P/2R3K1 w - - bm Rc8+; id "WAC.136 P272a";
rk6/1p1r2q1/1Q1N2p1/2p5/4p1P1/1R6/P7/1K3R2 w - - bm Rf8+; id "P272b";
2r3k1/7p/6r1/1p1P4/5P2/1P2n1q1/1Q2R1P1/6KR b - - bm Rc1+; id "P272c";
1k3r2/p7/1r6/4P1p1/2P5/1q1n2P1/1P1R2Q1/RK6 b - - bm Rf1+; id "P272d";
3b1rk1/1bq3pp/5pn1/1p2rN2/2p1p3/2P1B2Q/1PB2PPP/R2R2K1 w - - bm Rd7; id "WAC.137 P274a";
1kr1b3/pp3qb1/1np5/2Nr2p1/3p1p2/Q2B1P2/PPP2BP1/1K2R2R w - - bm Re7; id "P274b";
r2r2k1/1pb2ppp/2p1b2q/2P1P3/1P2Rn2/5PN1/1BQ3PP/3B1RK1 b - - bm Rd2; id "P274c";
1k2r2r/ppp2bp1/q2b1p2/3P1P2/2nR2P1/1NP5/PP3QB1/1KR1B3 b - - bm Re2; id "P274d";
r1bq3r/ppppR1p1/5n1k/3P4/6pP/3Q4/PP1N1PP1/5K1R w - - bm h5; id "WAC.138 P276a";
r3qb1r/1p1Rpppp/k1n5/4P3/Pp6/4Q3/1PP1N1PP/R1K5 w - - bm a5; id "P276b";
5k1r/pp1n1pp1/3q4/6Pp/3p4/5N1K/PPPPr1P1/R1BQ3R b - - bm h4; id "P276c";
r1k5/1pp1n1pp/4q3/pP6/4p3/K1N5/1P1rPPPP/R3QB1R b - - bm a4; id "P276d";
rnb3kr/ppp2ppp/1b6/3q4/3pN3/Q4N2/PPP2KPP/R1B1R3 w - - bm Nf6+; id "WAC.139 P278a";
rk3bnr/ppp2ppp/6b1/4q3/3Np3/2N4Q/PPK2PPP/3R1B1R w - - bm Nc6+; id "P278b";
r1b1r3/ppp2kpp/q4n2/3Pn3/3Q4/1B6/PPP2PPP/RNB3KR b - - bm Nf3+; id "P278c";
3r1b1r/ppk2ppp/2n4q/3nP3/4Q3/6B1/PPP2PPP/RK3BNR b - - bm Nc3+; id "P278d";
r2b1rk1/pq4p1/4ppQP/3pB1p1/3P4/2R5/PP3PP1/5RK1 w - - bm Bc7 Rc7; id "WAC.140 P280a";
1kr1b2r/1p4qp/PQpp4/1p1Bp3/4P3/5R2/1PP3PP/1KR5 w - - bm Bf7 Rf7; id "P280b";
5rk1/pp3pp1/2r5/3p4/3Pb1P1/4PPqp/PQ4P1/R2B1RK1 b - - bm Bc2 Rc2; id "P280c";
1kr5/1pp3pp/5r2/4p3/1P1bP3/pqPP4/1P4QP/1KR1B2R b - - bm Bf2 Rf2; id "P280d";
4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w - - bm Qxf4; id "WAC.141 P282a";
1k1r4/2p1rq1p/1pB1bp2/p5p1/R1n1P3/2P3B1/1KP3PP/R4Q2 w - - bm Qxc4; id "P282b";
2q4r/pp3pk1/1b3p2/3p1N1r/1P5P/2PB1bP1/P1QR1P2/4R1K1 b - - bm Qxf5; id "P282c";
r4q2/1kp3pp/2p3b1/r1N1p3/P5P1/1Pb1BP2/2P1RQ1P/1K1R4 b - - bm Qxc5; id "P282d";
r2q3n/ppp2pk1/3p4/5Pr1/2NP1Qp1/2P2pP1/PP3K2/4R2R w - - bm Re8 f6+; id "WAC.142 P284a";
n3q2r/1kp2ppp/4p3/1rP5/1pQ1PN2/1Pp2P2/2K3PP/R2R4 w - - bm Rd8 c6+; id "P284b";
4r2r/pp3k2/2p2Pp1/2np1qP1/5pR1/3P4/PPP2PK1/R2Q3N b - - bm Re1 f3+; id "P284c";
r2r4/2k3pp/1pP2p2/1Pq1pn2/1Rp5/4P3/1KP2PPP/N3Q2R b - - bm Rd1 c3+; id "P284d";
5b2/pp2r1pk/2pp1pRp/4rP1N/2P1P3/1P4QP/P3q1P1/5R1K w - - bm Rxh6+; id "WAC.143 P286a";
2b5/kp1r2pp/pRp1pp2/N1Pr4/3P1P2/PQ4P1/1P1q3P/K1R5 w - - bm Rxa6+; id "P286b";
5r1k/p3Q1p1/1p4qp/2p1p3/4Rp1n/2PP1PrP/PP2R1PK/5B2 b - - bm Rxh3+; id "P286c";
k1r5/1p1Q3p/pq4p1/3p1p2/n1pR4/PrP1PP2/KP1R2PP/2B5 b - - bm Rxa3+; id "P286d";
r2q1rk1/pp3ppp/2p2b2/8/B2pPPb1/7P/PPP1N1P1/R2Q1RK1 b - - bm d3; id "WAC.144 P288a";
1kr1q2r/ppp3pp/2b2p2/8/1bPPp2B/P7/1P1N1PPP/1KR1Q2R b - - bm e3; id "P288b";
r2q1rk1/ppp1n1p1/7p/b2PppB1/8/2P2B2/PP3PPP/R2Q1RK1 w - - bm d6; id "P288c";
1kr1q2r/1p1n1ppp/p7/1BppP2b/8/2B2P2/PPP3PP/1KR1Q2R w - - bm e6; id "P288d";
r1bq4/1p4kp/3p1n2/p4pB1/2pQ4/8/1P4PP/4RRK1 w - - bm Re8; id "WAC.145 P290a";
4qb1r/pk4p1/2n1p3/1Bp4p/4Qp2/8/PP4P1/1KRR4 w - - bm Rd8; id "P290b";
4rrk1/1p4pp/8/2Pq4/P4Pb1/3P1N2/1P4KP/R1BQ4 b - - bm Re1; id "P290c";
1krr4/pp4p1/8/4qP2/1bP4P/2N1P3/PK4P1/4QB1R b - - bm Rd1; id "P290d";
8/8/2Kp4/3P1B2/2P2k2/5p2/8/8 w - - bm Bc8 Bd3 Bh3; id "WAC.146 P292a";
8/8/4pK2/2B1P3/2k2P2/2p5/8/8 w - - bm Bf8 Be3 Ba3; id "P292b";
8/8/5P2/2p2K2/3p1b2/2kP4/8/8 b - - bm Bc1 Bd6 Bh6; id "P292c";
8/8/2P5/2K2p2/2b1p3/4Pk2/8/8 b - - bm Bf1 Be6 Ba6; id "P292d";
r2r2k1/ppqbppbp/2n2np1/2pp4/6P1/1P1PPNNP/PBP2PB1/R2QK2R b KQ - bm Nxg4; id "WAC.147 P294a";
r2qk2r/pbp2pb1/1p1ppnnp/6p1/2PP4/2N2NP1/PPQBPPBP/R2R2K1 w KQ - bm Nxg5; id "P294c";
2r1k3/6pr/p1nBP3/1p3p1p/2q5/2P5/P1R4P/K2Q2R1 w - - bm Rxg7; id "WAC.148 P296a";
3k1r2/rp6/3PBn1p/p1p3p1/5q2/5P2/P4R1P/1R2Q2K w - - bm Rxb7; id "P296b";
k2q2r1/p1r4p/2p5/2Q5/1P3P1P/P1Nbp3/6PR/2R1K3 b - - bm Rxg2; id "P296c";
1r2q2k/p4r1p/5p2/5Q2/P1P3P1/3pbN1P/RP6/3K1R2 b - - bm Rxb2; id "P296d";
6k1/6p1/2p4p/4Pp2/4b1qP/2Br4/1P2RQPK/8 b - - bm Bxg2; id "WAC.149 P298a";
1k6/1p6/p4p2/2pP4/Pq1b4/4rB2/KPQR2P1/8 b - - bm Bxb2; id "P298b";
8/1p2rqpk/2bR4/4B1Qp/4pP2/2P4P/6P1/6K1 w - - bm Bxg7; id "P298c";
8/kpqr2p1/4Rb2/pQ1B4/2Pp4/P4P2/1P6/1K6 w - - bm Bxb7; id "P298d";
r3r1k1/5p2/pQ1b2pB/1p6/4p3/6P1/Pq2BP1P/2R3K1 b - - bm Ba3 Be5 Bf8 e3; c0 "All win but e3 is best."; id "WAC.150 P300a";
1k1r3r/2p5/Bp2b1Qp/6p1/3p4/1P6/P1PB2qP/1K3R2 b - - bm Bh3 Bd5 Bc8 d3; id "P300b";
2r3k1/pQ2bp1p/6p1/4P3/1P6/Pq1B2Pb/5P2/R3R1K1 w - - bm Ba6 Be4 Bf1 e6; id "P300c";
1k3r2/p1pb2Qp/1p6/3P4/6P1/bP2B1qP/2P5/1K1R3R w - - bm Bh6 Bd4 Bc1 d6; id "P300d";
8/3b2kp/4p1p1/pr1n4/N1N4P/1P4P1/1K3P2/3R4 w - - bm Nc3; id "WAC.151 P302a";
8/pk2b3/1p1p4/4n1rp/P4N1N/1P4P1/2P3K1/4R3 w - - bm Nf3; id "P302b";
3r4/1k3p2/1p4p1/n1n4p/PR1N4/4P1P1/3B2KP/8 b - - bm Nc6; id "P302c";
4r3/2p3k1/1p4p1/p4n1n/4N1RP/1P1P4/PK2B3/8 b - - bm Nf6; id "P302d";
1br2rk1/1pqb1ppp/p3pn2/8/1P6/P1N1PN1P/1B3PP1/1QRR2K1 w - - bm Ne4; id "WAC.152 P304a";
1kr2rb1/ppp1bqp1/2np3p/8/6P1/P1NP1N1P/1PP3B1/1K2RRQ1 w - - bm Nd4; id "P304b";
1qrr2k1/1b3pp1/p1n1pn1p/1p6/8/P3PN2/1PQB1PPP/1BR2RK1 b - - bm Ne5; id "P304c";
1k2rrq1/1pp3b1/p1np1n1p/6p1/8/2NP3P/PPP1BQP1/1KR2RB1 b - - bm Nd5; id "P304d";
2r3k1/q4ppp/p3p3/pnNp4/2rP4/2P2P2/4R1PP/2R1Q1K1 b - - bm Nxd4; id "WAC.153 P306a";
1k3r2/ppp4q/3p3p/4pNnp/4Pr2/2P2P2/PP1R4/1K1Q1R2 b - - bm Nxe4; id "P306b";
2r1q1k1/4r1pp/2p2p2/2Rp4/PNnP4/P3P3/Q4PPP/2R3K1 w - - bm Nxd5; id "P306c";
1k1q1r2/pp1r4/2p2p2/4pR2/4PnNP/3P3P/PPP4Q/1K3R2 w - - bm Nxe5; id "P306d";
r1b2rk1/2p2ppp/p7/1p6/3P3q/1BP3bP/PP3QP1/RNB1R1K1 w - - bm Qxf7+; id "WAC.154 P308a";
1kr2b1r/ppp2p2/7p/6p1/q3P3/Pb3PB1/1PQ3PP/1K1R1BNR w - - bm Qxc7+; id "P308b";
rnb1r1k1/pp3qp1/1bp3Bp/3p3Q/1P6/P7/2P2PPP/R1B2RK1 b - - bm Qxf2+; id "P308c";
1k1r1bnr/1pq3pp/pB3pb1/Q3p3/6P1/7P/PPP2P2/1KR2B1R b - - bm Qxc2+; id "P308d";
5bk1/1rQ4p/5pp1/2pP4/3n1PP1/7P/1q3BB1/4R1K1 w - - bm d6; id "WAC.155 P310a";
1kb5/p4Qr1/1pp5/4Pp2/1PP1n3/P7/1BB3q1/1K1R4 w - - bm e6; id "P310b";
4r1k1/1Q3bb1/7p/3N1pp1/2Pp4/5PP1/1Rq4P/5BK1 b - - bm d3; id "P310c";
1k1r4/1bb3Q1/p7/1pp1N3/4pP2/1PP5/P4qR1/1KB5 b - - bm e3; id "P310d";
r1b1qN1k/1pp3p1/p2p3n/4p1B1/8/1BP4Q/PP3KPP/8 w - - bm Qxh6+; id "WAC.156 P312a";
k1Nq1b1r/1p3pp1/n3p2p/1B1p4/8/Q4PB1/PPK3PP/8 w - - bm Qxa6+; id "P312b";
8/pp3kpp/1bp4q/8/4P1b1/P2P3N/1PP3P1/R1B1Qn1K b - - bm Qxh3+; id "P312c";
8/ppk3pp/q4pb1/8/1b1P4/N3P2P/1P3PP1/K1nQ1B1R b - - bm Qxa3+; id "P312d";
5rk1/p4ppp/2p1b3/3Nq3/4P1n1/1p1B2QP/1PPr2P1/1K2R2R w - - bm Ne7+; id "WAC.157 P314a";
1kr5/ppp4p/3b1p2/3qN3/1n1P4/PQ2B1p1/1P2rPP1/R2R2K1 w - - bm Nd7+; id "P314b";
1k2r2r/1ppR2p1/1P1b2qp/4p1N1/3nQ3/2P1B3/P4PPP/5RK1 b - - bm Ne2+; id "P314c";
r2r2k1/1p2Rpp1/pq2b1P1/1N1p4/3Qn3/3B1P2/PPP4P/1KR5 b - - bm Nd2+; id "P314d";
5rk1/n1p1R1bp/p2p4/1qpP1QB1/7P/2P3P1/PP3P2/6K1 w - - bm Rxg7+; id "WAC.158 P316a";
1kr5/pb1R1p1n/4p2p/1BQ1Ppq1/P7/1P3P2/2P3PP/1K6 w - - bm Rxb7+; id "P316b";
6k1/pp3p2/2p3p1/7p/1QPp1qb1/P2P4/N1P1r1BP/5RK1 b - - bm Rxg2+; id "P316c";
1k6/2p3pp/1p3p2/p7/1bq1pPQ1/4P2P/PB1r1P1N/1KR5 b - - bm Rxb2+; id "P316d";
r1b2r2/5P1p/ppn3pk/2p1p1Nq/1bP1PQ2/3P4/PB4BP/1R3RK1 w - - bm Ne6+; id "WAC.159 P318a";
2r2b1r/p1P5/kp3npp/qN1p1p2/2QP1Pb1/4P3/PB4BP/1KR3R1 w - - bm Nd6+; id "P318b";
1r3rk1/pb4bp/3p4/1Bp1pq2/2P1P1nQ/PPN3PK/5p1P/R1B2R2 b - - bm Ne3+; id "P318c";
1kr3r1/pb4bp/4p3/2qp1pB1/Qn1P1P2/KP3NPP/P1p5/2R2B1R b - - bm Nd3+; id "P318d";
qn1kr2r/1pRbb3/pP5p/P2pP1pP/3N1pQ1/3B4/3B1PP1/R5K1 w - - bm Qxd7+; id "WAC.160 P320a";
r2rk1nq/3bbRp1/p5Pp/Pp1Pp2P/1Qp1N3/4B3/1PP1B3/1K5R w - - bm Qxe7+; id "P320b";
r5k1/3b1pp1/3b4/3n1Pq1/p2Pp1Pp/Pp5P/1PrBB3/QN1KR2R b - - bm Qxd2+; id "P320c";
1k5r/1pp1b3/4b3/1qP1n3/pP1pP2p/P5pP/3BBrP1/R2RK1NQ b - - bm Qxe2+; id "P320d";
3r3k/3r1P1p/pp1Nn3/2pp4/7Q/6R1/Pq4PP/5RK1 w - - bm Qxd8+; id "WAC.161 P322a";
k3r3/p1P1r3/3nN1pp/4pp2/Q7/1R6/PP4qP/1KR5 w - - bm Qxe8+; id "P322b";
5rk1/pQ4pp/6r1/7q/2PP4/PP1nN3/3R1p1P/3R3K b - - bm Qxd1+; id "P322c";
1kr5/pp4Qp/1r6/q7/4PP2/3Nn1PP/P1p1R3/K3R3 b - - bm Qxe1+; id "P322d";
r3kbnr/p4ppp/2p1p3/8/Q1B3b1/2N1B3/PP3PqP/R3K2R w KQkq - bm Bd5; id "WAC.162 P324a";
r3k2r/pp3pQp/2n1b3/q1b3B1/8/2P1P3/P4PPP/R3KBNR b KQkq - bm Bd4; id "P324c";
5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - bm Qg2+; id "WAC.163 P326a";
1kr5/p4p2/r4p2/4P3/1b1p4/pPqN2Q1/K1P3PP/2R4R b - - bm Qb2+; id "P326b";
r4r2/pp3p1k/1q2nQpP/4P1B1/3p4/2P4R/2P4P/5RK1 w - - bm Qg7+; id "P326c";
2r4r/k1p3pp/PpQn2q1/1B1P4/4p3/R4P2/P4P2/1KR5 w - - bm Qb7+; id "P326d";
8/6pp/4p3/1p1n4/1NbkN1P1/P4P1P/1PR3K1/r7 w - - bm Rxc4+; id "WAC.164 P328a";
8/pp6/3p4/4n1p1/1P1NkbN1/P1P4P/1K3RP1/7r w - - bm Rxf4+; id "P328b";
R7/1pr3k1/p4p1p/1nBKn1p1/1P1N4/4P3/6PP/8 b - - bm Rxc5+; id "P328c";
7R/1k3rp1/p1p4p/1p1nKBn1/4N1P1/3P4/PP6/8 b - - bm Rxf5+; id "P328d";
1r5k/p1p3pp/8/8/4p3/P1P1R3/1P1Q1qr1/2KR4 w - - bm Re2; id "WAC.165 P330a";
k5r1/pp3p1p/8/8/3p4/3R1P1P/1rq1Q1P1/4RK2 w - - bm Rd2; id "P330b";
2kr4/1p1q1QR1/p1p1r3/4P3/8/8/P1P3PP/1R5K b - - bm Re7; id "P330c";
4rk2/1RQ1q1p1/3r1p1p/3P4/8/8/PP3P1P/K5R1 b - - bm Rd7; id "P330d";
r3r1k1/5pp1/p1p4p/2Pp4/8/q1NQP1BP/5PP1/4K2R b K - bm d4; id "WAC.166 P332a";
4k2r/5pp1/Q1nqp1bp/8/2pP4/P1P4P/5PP1/R3R1K1 w K - bm d5; id "P332c";
7Q/ppp2q2/3p2k1/P2Ppr1N/1PP5/7R/5rP1/6K1 b - - bm Rxg2+; id "WAC.167 P334a";
Q7/2q2ppp/1k2p3/N1rpP2P/5PP1/R7/1Pr5/1K6 b - - bm Rxb2+; id "P334b";
6k1/5Rp1/7r/1pp5/p2pPR1n/3P2K1/PPP2Q2/7q w - - bm Rxg7+; id "P334c";
1k6/1pR5/r7/5pp1/n1RPp2p/1K2P3/2Q2PPP/q7 w - - bm Rxb7+; id "P334d";
r3k2r/pb1q1p2/8/2p1pP2/4p1p1/B1P1Q1P1/P1P3K1/R4R2 b kq - bm Qd2+; id "WAC.168 P336a";
r4r2/p1p3k1/b1p1q1p1/4P1P1/2P1Pp2/8/PB1Q1P2/R3K2R w kq - bm Qd7+; id "P336c";
5rk1/1pp3bp/3p2p1/2PPp3/1P2P3/2Q1B3/4q1PP/R5K1 b - - bm Bh6; id "WAC.169 P338a";
1kr5/pb3pp1/1p2p3/3pPP2/3P2P1/3B1Q2/PP1q4/1K5R b - - bm Ba6; id "P338b";
r5k1/4Q1pp/2q1b3/1p2p3/2ppP3/3P2P1/1PP3BP/5RK1 w - - bm Bh3; id "P338c";
1k5r/pp1Q4/3b1q2/3p2p1/3Ppp2/1P2P3/PB3PP1/1KR5 w - - bm Ba3; id "P338d";
5r1k/6Rp/1p2p3/p2pBp2/1qnP4/4P3/Q4PPP/6K1 w - - bm Qxc4; id "WAC.170 P340a";
k1r5/pR6/3p2p1/2pBp2p/4Pnq1/3P4/PPP4Q/1K6 w - - bm Qxf4; id "P340b";
6k1/q4ppp/4p3/1QNp4/P2PbP2/1P2P3/6rP/5R1K b - - bm Qxc5; id "P340c";
1k6/ppp4q/3p4/4pNQ1/2PbP2P/3P2P1/Pr6/K1R5 b - - bm Qxf5; id "P340d";
2rq4/1b2b1kp/p3p1p1/1p1nNp2/7P/1B2B1Q1/PP3PP1/3R2K1 w - - bm Bh6+; id "WAC.171 P342a";
4qr2/pk1b2b1/1p1p3p/2pNn1p1/P7/1Q1B2B1/1PP3PP/1K2R3 w - - bm Ba6+; id "P342b";
3r2k1/pp3pp1/1b2b1q1/7p/1P1NnP2/P3P1P1/1B2B1KP/2RQ4 b - - bm Bh3+; id "P342c";
1k2r3/1pp3pp/1q1b2b1/p7/2PnN1P1/1P1P3P/PK1B2B1/4QR2 b - - bm Ba3+; id "P342d";
5r1k/p5pp/8/1P1pq3/P1p2nR1/Q7/5BPP/6K1 b - - bm Qe1+; id "WAC.172 P344a";
k1r5/pp5p/8/3qp1P1/1Rn2p1P/7Q/PPB5/1K6 b - - bm Qd1+; id "P344b";
6k1/5bpp/q7/p1P2Nr1/1p1PQ3/8/P5PP/5R1K w - - bm Qe8+; id "P344c";
1k6/ppb5/7q/1rN2P1p/3QP1p1/8/PP5P/K1R5 w - - bm Qd8+; id "P344d";
2r1b3/1pp1qrk1/p1n1P1p1/7R/2B1p3/4Q1P1/PP3PP1/3R2K1 w - - bm Qh6+; id "WAC.173 P346a";
3b1r2/1krq1pp1/1p1P1n1p/R7/3p1B2/1P1Q4/1PP3PP/1K2R3 w - - bm Qa6+; id "P346b";
3r2k1/pp3pp1/4q1p1/2b1P3/7r/P1N1p1P1/1PP1QRK1/2R1B3 b - - bm Qh3+; id "P346c";
1k2r3/1pp3pp/1p1q4/3P1b2/r7/1P1p1N1P/1KRQ1PP1/3B1R2 b - - bm Qa3+; id "P346d";
2r2rk1/6p1/p3pq1p/1p1b1p2/3P1n2/PP3N2/3N1PPP/1Q2RR1K b - - bm Nxg2; id "WAC.174 P348a";
1kr2r2/1p6/p1qp3p/2p1b1p1/2n1P3/2N3PP/PPP1N3/K1RR2Q1 b - - bm Nxb2; id "P348b";
1q2rr1k/3n1ppp/pp3n2/3p1N2/1P1B1P2/P3PQ1P/6P1/2R2RK1 w - - bm Nxg7; id "P348c";
k1rr2q1/ppp1n3/2n3pp/2N1p3/2P1B1P1/P1QP3P/1P6/1KR2R2 w - - bm Nxb7; id "P348d";
r5k1/pppb3p/2np1n2/8/3PqNpP/3Q2P1/PPP5/R4RK1 w - - bm Nh5; id "WAC.175 P350a";
1k5r/p3bppp/2n1pn2/8/PpNqP3/1P2Q3/5PPP/1KR4R w - - bm Na5; id "P350b";
r4rk1/ppp5/3q2p1/3pQnPp/8/2NP1N2/PPPB3P/R5K1 b - - bm Nh4; id "P350c";
1kr4r/5ppp/1p2q3/pPnQp3/8/2N1PN2/P3BPPP/1K5R b - - bm Na4; id "P350d";
r1bq3r/ppp2pk1/3p1pp1/8/2BbPQ2/2NP2P1/PPP4P/R4R1K b - - bm Rxh2+; id "WAC.176 P352a";
r3qb1r/1kp2ppp/1pp1p3/8/2QPbB2/1P2PN2/P4PPP/K1R4R b - - bm Rxa2+; id "P352b";
r4r1k/ppp4p/2np2p1/2bBpq2/8/3P1PP1/PPP2PK1/R1BQ3R w - - bm Rxh7+; id "P352c";
k1r4r/p4ppp/1p2pn2/2qpBb2/8/1PP1P3/1KP2PPP/R3QB1R w - - bm Rxa7+; id "P352d";
r1b3r1/4qk2/1nn1p1p1/3pPp1P/p4P2/1p3BQN/PKPBN3/3R3R b - - bm Qa3+; id "WAC.177 P354a";
1r3b1r/2kq4/1p1p1nn1/P1pPp3/2P4p/NQB3p1/3NBPKP/R3R3 b - - bm Qh3+; id "P354b";
3r3r/pkpbn3/1P3bqn/P4p2/3PpP1p/1NN1P1P1/4QK2/R1B3R1 w - - bm Qa6+; id "P354c";
r3r3/3nbpkp/nqb3P1/2p4P/p1PpP3/1P1P1NN1/2KQ4/1R3B1R w - - bm Qh6+; id "P354d";
3r2k1/p1rn1p1p/1p2pp2/6q1/3PQNP1/5P2/P1P4R/R5K1 w - - bm Nxe6; id "WAC.178 P356a";
1k2r3/p1p1nr1p/2pp2p1/1q6/1PNQP3/2P5/R4P1P/1K5R w - - bm Nxd6; id "P356b";
r5k1/p1p4r/5p2/3pqnp1/6Q1/1P2PP2/P1RN1P1P/3R2K1 b - - bm Nxe3; id "P356c";
1k5r/r4p1p/2p5/1pnqp3/1Q6/2PP2P1/P1P1NR1P/1K2R3 b - - bm Nxd3; id "P356d";
r1b2r1k/pp4pp/3p4/3B4/8/1QN3Pn/PP3q1P/R3R2K b - - bm Qg1+; id "WAC.179 P358a";
k1r2b1r/pp4pp/4p3/4B3/8/nP3NQ1/P1q3PP/K2R3R b - - bm Qb1+; id "P358b";
r3r2k/pp3Q1p/1qn3pN/8/3b4/3P4/PP4PP/R1B2R1K w - - bm Qg8+; id "P358c";
k2r3r/p1Q3pp/Np3nq1/8/4b3/4P3/PP4PP/K1R2B1R w - - bm Qb8+; id "P358d";
r1q2rk1/p3bppb/3p1n1p/2nPp3/1p2P1P1/6NP/PP2QPB1/R1BNK2R b KQ - bm Nxd5; id "WAC.180 P360a";
r1bnk2r/pp2qpb1/6np/1P2p1p1/2NpP3/3P1N1P/P3BPPB/R1Q2RK1 w KQ - bm Nxd4; id "P360c";
r3k2r/2p2p2/p2p1n2/1p2p3/4P2p/1PPPPp1q/1P5P/R1N2QRK b kq - bm Ng4; id "WAC.181 P362a";
r1n2qrk/1p5p/1ppppP1Q/4p2P/1P2P3/P2P1N2/2P2P2/R3K2R w kq - bm Ng5; id "P362c";
r1b2rk1/ppqn1p1p/2n1p1p1/2b3N1/2N5/PP1BP3/1B3PPP/R2QK2R w KQ - bm Qh5; id "WAC.182 P364a";
r2qk2r/1b3ppp/pp1bp3/2n5/2B3n1/2N1P1P1/PPQN1P1P/R1B2RK1 b KQ - bm Qh4; id "P364c";
1r2k1r1/5p2/b3p3/1p2b1B1/3p3P/3B4/PP2KP2/2R3R1 w - - bm Bf6; id "WAC.183 P366a";
1r1k2r1/2p5/3p3b/1B1b2p1/P3p3/4B3/2PK2PP/1R3R2 w - - bm Bc6; id "P366b";
2r3r1/pp2kp2/3b4/3P3p/1P2B1b1/B3P3/5P2/1R2K1R1 b - - bm Bf3; id "P366c";
1r3r2/2pk2pp/4b3/p3P3/1b1B2P1/3P3B/2P5/1R1K2R1 b - - bm Bc3; id "P366d";
4kn2/r4p1r/p3bQ2/q1nNP1Np/1p5P/8/PPP3P1/2KR3R w - - bm Qe7+; id "WAC.184 P368a";
2nk4/r1p4r/2Qb3p/pN1PNn1q/P5p1/8/1P3PPP/R3RK2 w - - bm Qd7+; id "P368b";
2kr3r/ppp3p1/8/1P5p/Q1Nnp1nP/P3Bq2/R4P1R/4KN2 b - - bm Qe2+; id "P368c";
r3rk2/1p3ppp/8/p5P1/Pn1pnN1Q/2qB3P/R1P4R/2NK4 b - - bm Qd2+; id "P368d";
1r1rb1k1/2p3pp/p2q1p2/3PpP1Q/Pp1bP2N/1B5R/1P4PP/2B4K w - - bm Qxh7+; id "WAC.185 P370a";
1k1br1r1/pp3p2/2p1q2p/Q1PpP3/N2Pb1pP/R5B1/PP4P1/K4B2 w - - bm Qxa7+; id "P370b";
2b4k/1p4pp/1b5r/pP1Bp2n/3pPp1q/P2Q1P2/2P3PP/1R1RB1K1 b - - bm Qxh2+; id "P370c";
k4b2/pp4p1/r5b1/n2pB1Pp/q1pPp3/2P1Q2P/PP3P2/1K1BR1R1 b - - bm Qxa2+; id "P370d";
r5r1/p1q2p1k/1p1R2pB/3pP3/6bQ/2p5/P1P1NPPP/6K1 w - - bm Bf8+; id "WAC.186 P372a";
1r5r/k1p2q1p/Bp2R1p1/3Pp3/Qb6/5p2/PPPN1P1P/1K6 w - - bm Bc8+; id "P372b";
6k1/p1p1nppp/2P5/6Bq/3Pp3/1P1r2Pb/P1Q2P1K/R5R1 b - - bm Bf1+; id "P372c";
1k6/pppn1p1p/5P2/qB6/3pP3/bP2r1P1/K1P2Q1P/1R5R b - - bm Bc1+; id "P372d";
6k1/5p2/p3p3/1p3qp1/2p1Qn2/2P1R3/PP1r1PPP/4R1K1 b - - bm Nh3+; id "WAC.187 P374a";
1k6/2p5/3p3p/1pq3p1/2nQ1p2/3R1P2/PPP1r1PP/1K1R4 b - - bm Na3+; id "P374b";
4r1k1/pp1R1ppp/2p1r3/2P1qN2/1P3QP1/P3P3/5P2/6K1 w - - bm Nh6+; id "P374c";
1k1r4/ppp1R1pp/3r1p2/2Nq1P2/1PQ3P1/3P3P/2P5/1K6 w - - bm Na6+; id "P374d";
3RNbk1/pp3p2/4rQpp/8/1qr5/7P/P4P2/3R2K1 w - - bm Qg7+; id "WAC.188 P376a";
1kbNR3/2p3pp/ppQr4/8/5rq1/P7/2P4P/1K2R3 w - - bm Qb7+; id "P376b";
3r2k1/p4p2/7p/1QR5/8/4RqPP/PP3P2/3rnBK1 b - - bm Qg2+; id "P376c";
1k2r3/2p4p/p7/5RQ1/8/PPqR4/2P3PP/1KBnr3 b - - bm Qb2+; id "P376d";
3r1k2/1ppPR1n1/p2p1rP1/3P3p/4Rp1N/5K2/P1P2P2/8 w - - bm Re8+; id "WAC.189 P378a";
2k1r3/1n1RPpp1/1Pr1p2p/p3P3/N1pR4/2K5/2P2P1P/8 w - - bm Rd8+; id "P378b";
8/p1p2p2/5k2/4rP1n/3p3P/P2P1Rp1/1PPpr1N1/3R1K2 b - - bm Re1+; id "P378c";
8/2p2p1p/2k5/n1Pr4/P3p3/1pR1P2P/1N1rpPP1/2K1R3 b - - bm Rd1+; id "P378d";
8/p2b2kp/1q1p2p1/1P1Pp3/4P3/3B2P1/P2Q3P/2Nn3K b - - bm Bh3; id "WAC.190 P380a";
8/pk2b2p/1p2p1q1/3pP1P1/3P4/1P2B3/P3Q2P/K3nN2 b - - bm Ba3; id "P380b";
2nN3k/p2q3p/3b2p1/4p3/1p1pP3/1Q1P2P1/P2B2KP/8 w - - bm Bh6; id "P380c";
k3Nn2/p3q2p/1p2b3/3p4/3Pp1p1/1P2P1Q1/PK2B2P/8 w - - bm Ba6; id "P380d";
2r1Rn1k/1p1q2pp/p7/5p2/3P4/1B4P1/P1P1QP1P/6K1 w - - bm Qc4; id "WAC.191 P382a";
k1nR1r2/pp2q1p1/7p/2p5/4P3/1P4B1/P1PQ1P1P/1K6 w - - bm Qf4; id "P382b";
6k1/p1p1qp1p/1b4p1/3p4/5P2/P7/1P1Q2PP/2R1rN1K b - - bm Qc5; id "P382c";
1k6/p1pq1p1p/1p4b1/4p3/2P5/7P/PP2Q1P1/K1Nr1R2 b - - bm Qf5; id "P382d";
r3k3/ppp2Npp/4Bn2/2b5/1n1pp3/N4P2/PPP3qP/R2QKR2 b Qq - bm Nd3+; id "WAC.192 P384a";
r2qkr2/ppp3Qp/n4p2/1N1PP3/2B5/4bN2/PPP2nPP/R3K3 w Qq - bm Nd6+; id "P384c";
5bk1/p4ppp/Qp6/4B3/1P6/Pq2P1P1/2rr1P1P/R4RK1 b - - bm Qxe3; id "WAC.193 P386a";
1kb5/ppp4p/6pQ/3B4/6P1/1P1P2qP/P1P1rr2/1KR4R b - - bm Qxd3; id "P386b";
r4rk1/2RR1p1p/pQ2p1p1/1p6/4b3/qP6/P4PPP/5BK1 w - - bm Qxe6; id "P386c";
1kr4r/p1p1RR2/1p1p2Qp/6p1/3b4/6Pq/PPP4P/1KB5 w - - bm Qxd6; id "P386d";
5rk1/ppq2ppp/2p5/4bN2/4P3/6Q1/PPP2PPP/3R2K1 w - - bm Nh6+; id "WAC.194 P388a";
1kr5/ppp2qpp/5p2/2Nb4/3P4/1Q6/PPP2PPP/1K2R3 w - - bm Na6+; id "P388b";
3r2k1/ppp2ppp/6q1/4p3/4Bn2/2P5/PPQ2PPP/5RK1 b - - bm Nh3+; id "P388c";
1k2r3/ppp2ppp/1q6/3p4/2nB4/5P2/PPP2QPP/1KR5 b - - bm Na3+; id "P388d";
3r1rk1/1p3p2/p3pnnp/2p3p1/2P2q2/1P5P/PB2QPPN/3RR1K1 w - - bm g3; id "WAC.195 P390a";
1kr1r3/2p3p1/pnnp3p/1p3p2/2q2P2/P5P1/NPPQ2BP/1K1RR3 w - - bm b3; id "P390b";
3rr1k1/pb2qppn/1p5p/2p2Q2/2P3P1/P3PNNP/1P3P2/3R1RK1 b - - bm g6; id "P390c";
1k1rr3/nppq2bp/p5p1/2Q2p2/1P3P2/PNNP3P/2P3P1/1KR1R3 b - - bm b6; id "P390d";
rr4k1/p1pq2pp/Q1n1pn2/2bpp3/4P3/2PP1NN1/PP3PPP/R1B1K2R b KQ - bm Nb4; id "WAC.196 P392a";
r1b1k2r/pp3ppp/2pp1nn1/4p3/2BPP3/q1N1PN2/P1PQ2PP/RR4K1 w KQ - bm Nb5; id "P392c";
7k/1p4p1/7p/3P1n2/4Q3/2P2P2/PP3qRP/7K b - - bm Qf1+; id "WAC.197 P394a";
k7/1p4p1/p7/2n1P3/3Q4/2P2P2/PRq3PP/K7 b - - bm Qc1+; id "P394b";
7k/pp3Qrp/2p2p2/4q3/3p1N2/7P/1P4P1/7K w - - bm Qf8+; id "P394c";
k7/prQ3pp/2p2p2/3q4/2N1p3/P7/1P4P1/K7 w - - bm Qc8+; id "P394d";
2br2k1/ppp2p1p/4p1p1/4P2q/2P1Bn2/2Q5/PP3P1P/4R1RK b - - bm Rd3; id "WAC.198 P396a";
1k2rb2/p1p2ppp/1p1p4/q2P4/2nB1P2/5Q2/P1P3PP/KR1R4 b - - bm Re3; id "P396b";
4r1rk/pp3p1p/2q5/2p1bN2/4p2Q/4P1P1/PPP2P1P/2BR2K1 w - - bm Rd6; id "P396c";
kr1r4/p1p3pp/5q2/2Nb1p2/Q2p4/1P1P4/P1P2PPP/1K2RB2 w - - bm Re6; id "P396d";
r1br2k1/pp2nppp/2n5/1B1q4/Q7/4BN2/PP3PPP/2R2RK1 w - - bm Bxc6 Rcd1 Rfd1; id "WAC.199 P398a";
1k2rb1r/pppn2pp/5n2/4q1B1/7Q/2NB4/PPP3PP/1KR2R2 w - - bm Bxf6 Rfe1 Rce1; id "P398b";
2r2rk1/pp3ppp/4bn2/q7/1b1Q4/2N5/PP2NPPP/R1BR2K1 b - - bm Bxc3 Rcd8 Rfd8; id "P398c";
1kr2r2/ppp3pp/2nb4/7q/4Q1b1/5N2/PPPN2PP/1K2RB1R b - - bm Bxf3 Rfe8 Rce8; id "P398d";
2rqrn1k/pb4pp/1p2pp2/n2P4/2P3N1/P2B2Q1/1B3PPP/2R1R1K1 w - - bm Bxf6; id "WAC.200 P400a";
k1nrqr2/pp4bp/2pp2p1/4P2n/1N3P2/1Q2B2P/PPP3B1/1K1R1R2 w - - bm Bxc6; id "P400b";
2r1r1k1/1b3ppp/p2b2q1/2p3n1/N2p4/1P2PP2/PB4PP/2RQRN1K b - - bm Bxf3; id "P400c";
1k1r1r2/ppp3b1/1q2b2p/1n3p2/4p2N/2PP2P1/PP4BP/K1NRQR2 b - - bm Bxc3; id "P400d";
2b2r1k/4q2p/3p2pQ/2pBp3/8/6P1/1PP2P1P/R5K1 w - - bm Ra7; id "WAC.201 P402a";
k1r2b2/p2q4/Qp2p3/3pBp2/8/1P6/P1P2PP1/1K5R w - - bm Rh7; id "P402b";
r5k1/1pp2p1p/6p1/8/2PbP3/3P2Pq/4Q2P/2B2R1K b - - bm Ra2; id "P402c";
1k5r/p1p2pp1/1p6/8/3PbP2/qP2P3/P2Q4/K1R2B2 b - - bm Rh2; id "P402d";
QR2rq1k/2p3p1/3p1pPp/8/4P3/8/P1r3PP/1R4K1 b - - bm Rxa2; id "WAC.202 P404a";
k1qr2RQ/1p3p2/pPp1p3/8/3P4/8/PP3r1P/1K4R1 b - - bm Rxh2; id "P404b";
1r4k1/p1R3pp/8/4p3/8/3P1PpP/2P3P1/qr2RQ1K w - - bm Rxa7; id "P404c";
1k4r1/pp3R1p/8/3p4/8/PpP1P3/1P3P2/K1QR2rq w - - bm Rxh7; id "P404d";
r4rk1/5ppp/p3q1n1/2p2NQ1/4n3/P3P3/1B3PPP/1R3RK1 w - - bm Qh6; id "WAC.203 P406a";
1kr4r/ppp5/1n1q3p/1QN2p2/3n4/3P3P/PPP3B1/1KR3R1 w - - bm Qa6; id "P406b";
1r3rk1/1b3ppp/p3p3/4N3/2P2nq1/P3Q1N1/5PPP/R4RK1 b - - bm Qh3; id "P406c";
1kr3r1/ppp3b1/3p3p/3N4/1qn2P2/1N1Q3P/PPP5/1KR4R b - - bm Qa3; id "P406d";
r1b1qrk1/1p3ppp/p1p5/3Nb3/5N2/P7/1P4PQ/K1R1R3 w - - bm Rxe5; id "WAC.204 P408a";
1krq1b1r/ppp3p1/5p1p/3bN3/2N5/7P/QP4P1/3R1R1K w - - bm Rxd5; id "P408b";
k1r1r3/1p4pq/p7/5n2/3nB3/P1P5/1P3PPP/R1B1QRK1 b - - bm Rxe4; id "P408c";
3r1r1k/qp4p1/7p/2n5/3Bn3/5P1P/PPP3P1/1KRQ1B1R b - - bm Rxd4; id "P408d";
r3rnk1/1pq2bb1/p4p2/3p1Pp1/3B2P1/1NP4R/P1PQB3/2K4R w - - bm Qxg5; id "WAC.205 P410a";
1knr3r/1bb2qp1/2p4p/1pP1p3/1P2B3/R4PN1/3BQP1P/R4K2 w - - bm Qxb5; id "P410b";
2k4r/p1pqb3/1np4r/3b2p1/3P1pP1/P4P2/1PQ2BB1/R3RNK1 b - - bm Qxg4; id "P410c";
r4k2/3bqp1p/r4pn1/1p2b3/1Pp1P3/2P4P/1BB2QP1/1KNR3R b - - bm Qxb4; id "P410d";
1Qq5/2P1p1kp/3r1pp1/8/8/7P/p4PP1/2R3K1 b - - bm Rc6; id "WAC.206 P412a";
5qQ1/pk1p1P2/1pp1r3/8/8/P7/1PP4p/1K3R2 b - - bm Rf6; id "P412b";
2r3k1/P4pp1/7p/8/8/3R1PP1/2p1P1KP/1qQ5 w - - bm Rc3; id "P412c";
1k3r2/1pp4P/p7/8/8/1PP1R3/PK1P1p2/5Qq1 w - - bm Rf3; id "P412d";
r1bq2kr/p1pp1ppp/1pn1p3/4P3/2Pb2Q1/BR6/P4PPP/3K1BNR w - - bm Qxg7+; id "WAC.207 P414a";
rk2qb1r/ppp1pp1p/3p1np1/3P4/1Q2bP2/6RB/PPP4P/RNB1K3 w - - bm Qxb7+; id "P414b";
3k1bnr/p4ppp/br6/2pB2q1/4p3/1PN1P3/P1PP1PPP/R1BQ2KR b - - bm Qxg2+; id "P414c";
rnb1k3/ppp4p/6rb/1q2Bp2/3p4/3P1NP1/PPP1PP1P/RK2QB1R b - - bm Qxb2+; id "P414d";
3r1bk1/ppq3pp/2p5/2P2Q1B/8/1P4P1/P6P/5RK1 w - - bm Bf7+; id "WAC.208 P416a";
1kb1r3/pp3qpp/5p2/B1Q2P2/8/1P4P1/P6P/1KR5 w - - bm Bc7+; id "P416b";
5rk1/p6p/1p4p1/8/2p2q1b/2P5/PPQ3PP/3R1BK1 b - - bm Bf2+; id "P416c";
1kr5/p6p/1p4p1/8/b1q2p2/5P2/PP3QPP/1KB1R3 b - - bm Bc2+; id "P416d";
4kb1r/2q2p2/r2p4/pppBn1B1/P6P/6Q1/1PP5/2KRR3 w k - bm Rxe5+; id "WAC.209 P418a";
2krr3/1pp5/6q1/p6p/PPPbN1b1/R2P4/2Q2P2/4KB1R b k - bm Rxe4+; id "P418c";
3r1rk1/pp1q1ppp/3pn3/2pN4/5PP1/P5PQ/1PP1B3/1K1R4 w - - bm Rh1; id "WAC.210 P420a";
1kr1r3/ppp1q1pp/3np3/4Np2/1PP5/QP5P/3B1PP1/4R1K1 w - - bm Ra1; id "P420b";
1k1r4/1pp1b3/p5pq/5pp1/2Pn4/3PN3/PP1Q1PPP/3R1RK1 b - - bm Rh8; id "P420c";
4r1k1/3b1pp1/qp5p/1pp5/4nP2/3NP3/PPP1Q1PP/1KR1R3 b - - bm Ra8; id "P420d";
r1bqrk2/pp1n1n1p/3p1p2/P1pP1P1Q/2PpP1NP/6R1/2PB4/4RBK1 w - - bm Qxf7+; id "WAC.211 P422a";
2krqb1r/p1n1n1pp/2p1p3/Q1P1Pp1P/PN1PpP2/1R6/4BP2/1KBR4 w - - bm Qxc7+; id "P422b";
4rbk1/2pb4/6r1/2pPp1np/p1Pp1p1q/3P1P2/PP1N1N1P/R1BQRK2 b - - bm Qxf2+; id "P422c";
1kbr4/4bp2/1r6/pn1pPp2/q1p1pP1p/2P1P3/P1N1N1PP/2KRQB1R b - - bm Qxc2+; id "P422d";
rn1qr2Q/pbppk1p1/1p2pb2/4N3/3P4/2N5/PPP3PP/R4RK1 w - - bm Qxg7+; id "WAC.212 P424a";
Q2rq1nr/1p1kppbp/2bp2p1/3N4/4P3/5N2/PP3PPP/1KR4R w - - bm Qxb7+; id "P424b";
r4rk1/ppp3pp/2n5/3p4/4n3/1P2PB2/PBPPK1P1/RN1QR2q b - - bm Qxg2+; id "P424c";
1kr4r/pp3ppp/5n2/4p3/3n4/2BP2P1/1P1KPPBP/q2RQ1NR b - - bm Qxb2+; id "P424d";
3r1r1k/1b4pp/ppn1p3/4Pp1R/Pn5P/3P4/4QP2/1qB1NKR1 w - - bm Rxh7+; id "WAC.213 P426a";
k1r1r3/pp4b1/3p1npp/R1pP4/P5nP/4P3/2PQ4/1RKN1Bq1 w - - bm Rxa7+; id "P426b";
1Qb1nkr1/4qp2/3p4/pN5p/4pP1r/PPN1P3/1B4PP/3R1R1K b - - bm Rxh2+; id "P426c";
1rkn1bQ1/2pq4/4p3/p5Np/r1Pp4/3P1NPP/PP4B1/K1R1R3 b - - bm Rxa2+; id "P426d";
r2r2k1/1p2qpp1/1np1p1p1/p3N3/2PPN3/bP5R/4QPPP/4R1K1 w - - bm Ng5; id "WAC.214 P428a";
1k2r2r/1ppq2p1/1p1p1pn1/3N3p/3NPP2/R5Pb/PPPQ4/1K1R4 w - - bm Nb5; id "P428b";
4r1k1/4qppp/Bp5r/2ppn3/P3n3/1NP1P1P1/1P2QPP1/R2R2K1 b - - bm Ng4; id "P428c";
1k1r4/pppq4/r5pB/3npp2/3n3P/1P1P1PN1/1PPQ2P1/1K2R2R b - - bm Nb4; id "P428d";
3r2k1/pb1q1pp1/1p2pb1p/8/3N4/P2QB3/1P3PPP/1Br1R1K1 w - - bm Qh7+; id "WAC.215 P430a";
1k2r3/1pp1q1bp/p1bp2p1/8/4N3/3BQ2P/PPP3P1/1K1R1rB1 w - - bm Qa7+; id "P430b";
1bR1r1k1/1p3ppp/p2qb3/3n4/8/1P2PB1P/PB1Q1PP1/3R2K1 b - - bm Qh2+; id "P430c";
1k1r1Rb1/ppp3p1/3bq2p/4n3/8/P1BP2P1/1PP1Q1BP/1K2R3 b - - bm Qa2+; id "P430d";
r2qr1k1/1b1nbppp/p3pn2/1p1pN3/3P1B2/2PB1N2/PP2QPPP/R4RK1 w - - bm Nxf7 a4; id "WAC.216 P432a";
1k1rq2r/pppbn1b1/2np3p/3Np1p1/2B1P3/2N1BP2/PPPQ2PP/1KR4R w - - bm Nxc7 h4; id "P432b";
r4rk1/pp2qppp/2pb1n2/3p1b2/1P1Pn3/P3PN2/1B1NBPPP/R2QR1K1 b - - bm Nxf2 a5; id "P432c";
1kr4r/pppq2pp/2n1bp2/2b1p3/3nP1P1/2NP3P/PPPBN1B1/1K1RQ2R b - - bm Nxc2 h5; id "P432d";
r3kb1r/1pp3p1/p3bp1p/5q2/3QN3/1P6/PBP3P1/3RR1K1 w kq - bm Qd7+; id "WAC.217 P434a";
3rr1k1/pbp3p1/1p6/3qn3/5Q2/P3BP1P/1PP3P1/R3KB1R b kq - bm Qd2+; id "P434c";
6k1/pp5p/2p3q1/6BP/2nPr1Q1/8/PP3R1K/8 w - - bm Bh6; id "WAC.218 P436a";
1k6/p5pp/1q3p2/PB6/1Q1rPn2/8/K1R3PP/8 w - - bm Ba6; id "P436b";
8/pp3r1k/8/2NpR1q1/6bp/2P3Q1/PP5P/6K1 b - - bm Bh3; id "P436c";
8/k1r3pp/8/1q1RpN2/pb6/1Q3P2/P5PP/1K6 b - - bm Ba3; id "P436d";
7k/p4q1p/1pb5/2p5/4B2Q/2P1B3/P6P/7K b - - bm Qf1+; id "WAC.219 P438a";
k7/p1q4p/5bp1/5p2/Q2B4/3B1P2/P6P/K7 b - - bm Qc1+; id "P438b";
7k/p6p/2p1b3/4b2q/2P5/1PB5/P4Q1P/7K w - - bm Qf8+; id "P438c";
k7/p6p/3b1p2/q2b4/5P2/5BP1/P1Q4P/K7 w - - bm Qc8+; id "P438d";
3rr1k1/ppp2ppp/8/5Q2/4n3/1B5R/PPP1qPP1/5RK1 b - - bm Qxf1+; id "WAC.220 P440a";
1k1rr3/ppp2ppp/8/2Q5/3n4/R5B1/1PPq1PPP/1KR5 b - - bm Qxc1+; id "P440b";
5rk1/ppp1Qpp1/1b5r/4N3/5q2/8/PPP2PPP/3RR1K1 w - - bm Qxf8+; id "P440c";
1kr5/1ppQ1ppp/r5b1/3N4/2q5/8/PPP2PPP/1K1RR3 w - - bm Qxc8+; id "P440d";
r3k3/P5bp/2N1bp2/4p3/2p5/6NP/1PP2PP1/3R2K1 w q - bm Rd8+; id "WAC.221 P442a";
3r2k1/1pp2pp1/6np/2P5/4P3/2n1BP2/p5BP/R3K3 b q - bm Rd1+; id "P442c";
2r1r2k/1q3ppp/p2Rp3/2p1P3/6QB/p3P3/bP3PPP/3R2K1 w - - bm Bf6; id "WAC.222 P444a";
k2r1r2/ppp3q1/3pR2p/3P1p2/BQ6/3P3p/PPP3Pb/1K2R3 w - - bm Bc6; id "P444b";
3r2k1/Bp3ppp/P3p3/6qb/2P1p3/P2rP3/1Q3PPP/2R1R2K b - - bm Bf3; id "P444c";
1k2r3/ppp3pB/3p3P/bq6/3p1P2/3Pr2P/PPP3Q1/K2R1R2 b - - bm Bc3; id "P444d";
r1bqk2r/pp3ppp/5n2/8/1b1npB2/2N5/PP1Q2PP/1K2RBNR w kq - bm Nxe4; id "WAC.223 P446a";
1k2rbnr/pp1q2pp/2n5/1B1NPb2/8/5N2/PP3PPP/R1BQK2R b kq - bm Nxe5; id "P446c";
5rk1/p1q3pp/1p1r4/2p1pp1Q/1PPn1P2/3B3P/P2R2P1/3R2K1 b - - bm Rh6 e4; id "WAC.224 P448a";
1kr5/pp3q1p/4r1p1/Q1pp1p2/2P1nPP1/P3B3/1P2R2P/1K2R3 b - - bm Ra6 d4; id "P448b";
3r2k1/p2r2p1/3b3p/1ppN1p2/2P1PP1q/1P1R4/P1Q3PP/5RK1 w - - bm Rh3 e5; id "P448c";
1k2r3/1p2r2p/p3b3/2p1Npp1/q1PP1P2/4R1P1/PP3Q1P/1KR5 w - - bm Ra3 d5; id "P448d";
4R3/4q1kp/6p1/1Q3b2/1P1b1P2/6KP/8/8 b - - bm Qh4+; id "WAC.225 P450a";
3R4/pk1q4/1p6/2b3Q1/2P1b1P1/PK6/8/8 b - - bm Qa4+; id "P450b";
8/8/6kp/1p1B1p2/1q3B2/6P1/4Q1KP/4r3 w - - bm Qh5+; id "P450c";
8/8/pk6/2p1B1p1/2B3q1/1P6/PK1Q4/3r4 w - - bm Qa5+; id "P450d";
2b2rk1/p1p4p/2p1p1p1/br2N1Q1/1p2q3/8/PB3PPP/3R1RK1 w - - bm Nf7; id "WAC.226 P452a";
1kr2b2/p4p1p/1p1p1p2/1Q1N2rb/3q2p1/8/PPP3BP/1KR1R3 w - - bm Nc7; id "P452b";
3r1rk1/pb3ppp/8/1P2Q3/BR2n1q1/2P1P1P1/P1P4P/2B2RK1 b - - bm Nf2; id "P452c";
1kr1r3/ppp3bp/8/3Q2P1/1q1n2RB/1P1P1P2/P4P1P/1KR2B2 b - - bm Nc2; id "P452d";
2k1rb1r/ppp3pp/2np1q2/5b2/2B2P2/2P1BQ2/PP1N1P1P/2KR3R b - - bm d5; id "WAC.227 P454a";
r1br1k2/pp3ppp/2q1pn2/2b5/2P2B2/2QB1P2/P1P1N1PP/R3RK2 b - - bm e5; id "P454b";
2kr3r/pp1n1p1p/2p1bq2/2b2p2/5B2/2NP1Q2/PPP3PP/2K1RB1R w - - bm d4; id "P454c";
r3rk2/p1p1n1pp/2qb1p2/2p2b2/2B5/2Q1PN2/PP3PPP/R1BR1K2 w - - bm e4; id "P454d";
r4rk1/1bq1bp1p/4p1p1/p2p4/3BnP2/1N1B3R/PPP3PP/R2Q2K1 w - - bm Bxe4; id "WAC.228 P456a";
1kr4r/p1pb1qb1/1p1p4/4p2p/2PnB3/R3B1N1/PP3PPP/1K2Q2R w - - bm Bxd4; id "P456b";
r2q2k1/ppp3pp/1n1b3r/3bNp2/P2P4/4P1P1/1BQ1BP1P/R4RK1 b - - bm Bxe5; id "P456c";
1k2q2r/pp3ppp/r3b1n1/2pNb3/4P2P/1P1P4/P1PB1QB1/1KR4R b - - bm Bxd5; id "P456d";
8/8/8/1p5r/p1p1k1pN/P2pBpP1/1P1K1P2/8 b - - bm Rxh4 b4; id "WAC.229 P458a";
8/8/8/r5p1/Np1k1p1p/1PpBp2P/2P1K1P1/8 b - - bm Rxa4 g4; id "P458b";
8/1p1k1p2/p2PbPp1/P1P1K1Pn/1P5R/8/8/8 w - - bm Rxh5 b5; id "P458c";
8/2p1k1p1/1pPbP2p/nP1K1P1P/R5P1/8/8/8 w - - bm Rxa5 g5; id "P458d";
2b5/1r6/2kBp1p1/p2pP1P1/2pP4/1pP3K1/1R3P2/8 b - - bm Rb4; id "WAC.230 P460a";
5b2/6r1/1p1pBk2/1P1Pp2p/4Pp2/1K3Pp1/2P3R1/8 b - - bm Rg4; id "P460b";
8/1r3p2/1Pp3k1/2Pp4/P2Pp1p1/2KbP1P1/1R6/2B5 w - - bm Rb5; id "P460c";
8/2p3r1/1k3pP1/4pP2/1p1pP2P/1P1PbK2/6R1/5B2 w - - bm Rg5; id "P460d";
r4rk1/1b1nqp1p/p5p1/1p2PQ2/2p5/5N2/PP3PPP/R1BR2K1 w - - bm Bg5; id "WAC.231 P462a";
1kr4r/p1pqn1b1/1p5p/2QP2p1/5p2/2N5/PPP3PP/1K2RB1R w - - bm Bb5; id "P462b";
r1br2k1/pp3ppp/5n2/2P5/1P2pq2/P5P1/1B1NQP1P/R4RK1 b - - bm Bg4; id "P462c";
1k2rb1r/ppp3pp/2n5/5P2/2qp2P1/1P5P/P1PQN1B1/1KR4R b - - bm Bb4; id "P462d";
1R2rq1k/2p3p1/Q2p1pPp/8/4P3/8/P1r3PP/1R4K1 w - - bm Qb5 Rxe8; id "WAC.232 P464a";
k1qr2R1/1p3p2/pPp1p2Q/8/3P4/8/PP3r1P/1K4R1 w - - bm Qg5 Rxd8; id "P464b";
1r4k1/p1R3pp/8/4p3/8/q2P1PpP/2P3P1/1r2RQ1K b - - bm Qb4 Rxe1; id "P464c";
1k4r1/pp3R1p/8/3p4/8/PpP1P2q/1P3P2/K1QR2r1 b - - bm Qg4 Rxd1; id "P464d";
5rk1/p1p2r1p/2pp2p1/4p3/PPPnP3/3Pq1P1/1Q1R1R1P/4NK2 b - - bm Nb3; id "WAC.233 P466a";
1kr5/p1r2p1p/1p2pp2/3p4/3PnPPP/1P1qP3/P1R1R1Q1/2KN4 b - - bm Ng3; id "P466b";
4nk2/1q1r1r1p/3pQ1p1/pppNp3/4P3/2PP2P1/P1P2R1P/5RK1 w - - bm Nb6; id "P466c";
2kn4/p1r1r1q1/1p1Qp3/3pNppp/3P4/1P2PP2/P1R2P1P/1KR5 w - - bm Ng6; id "P466d";
2kr1r2/p6p/5Pp1/2p5/1qp2Q1P/7R/PP6/1KR5 w - - bm Rb3; id "WAC.234 P468a";
2r1rk2/p6p/1pP5/5p2/P1Q2pq1/R7/6PP/5RK1 w - - bm Rg3; id "P468b";
1kr5/pp6/7r/1QP2q1p/2P5/5pP1/P6P/2KR1R2 b - - bm Rb6; id "P468c";
5rk1/6pp/r7/p1q2PQ1/5P2/1Pp5/P6P/2R1RK2 b - - bm Rg6; id "P468d";
5r2/1p1RRrk1/4Qq1p/1PP3p1/8/4B3/1b3P1P/6K1 w - - bm Qe4 Qxf7+ Rxf7+; id "WAC.235 P470a";
2r5/1krRR1p1/p1qQ4/1p3PP1/8/3B4/P1P3b1/1K6 w - - bm Qd4 Qxc7+ Rxc7+; id "P470b";
6k1/1B3p1p/4b3/8/1pp3P1/4qQ1P/1P1rrRK1/5R2 b - - bm Qe5 Qxf2+ Rxf2+; id "P470c";
1k6/p1p3B1/3b4/8/1P3pp1/P1Qq4/1KRrr1P1/2R5 b - - bm Qd5 Qxc2+ Rxc2+; id "P470d";
1R6/p5pk/4p2p/4P3/8/2r3qP/P3R1b1/4Q1K1 b - - bm Rc1; id "WAC.236 P472a";
6R1/kp5p/p2p4/3P4/8/Pq3r2/1b1R3P/1K1Q4 b - - bm Rf1; id "P472b";
4q1k1/p3r1B1/2R3Qp/8/4p3/4P2P/P5PK/1r6 w - - bm Rc8; id "P472c";
1k1q4/1B1r3p/pQ3R2/8/3p4/P2P4/KP5P/6r1 w - - bm Rf8; id "P472d";
r5k1/pQp2qpp/8/4pbN1/3P4/6P1/PPr4P/1K1R3R b - - bm Rc1+; id "WAC.237 P474a";
1k5r/ppq2pQp/8/1Nbp4/4P3/1P6/P4rPP/R3R1K1 b - - bm Rf1+; id "P474b";
1k1r3r/ppR4p/6p1/3p4/4PBn1/8/PqP2QPP/R5K1 w - - bm Rc8+; id "P474c";
r3r1k1/p4Rpp/1p6/4p3/1nBP4/8/PPQ2PqP/1K5R w - - bm Rf8+; id "P474d";
1k1r4/pp1r1pp1/4n1p1/2R5/2Pp1qP1/3P2QP/P4PB1/1R4K1 w - - bm Bxb7; id "WAC.238 P476a";
4r1k1/1pp1r1pp/1p1n4/5R2/1Pq1pP2/PQ2P3/1BP4P/1K4R1 w - - bm Bxg7; id "P476b";
1r4k1/p4pb1/3p2qp/2pP1Qp1/2r5/4N1P1/PP1R1PP1/1K1R4 b - - bm Bxb2; id "P476c";
1k4r1/1bp4p/pq2p3/1pQ1Pp2/5r2/1P1N4/1PP1R1PP/4R1K1 b - - bm Bxg2; id "P476d";
8/6k1/5pp1/Q6p/5P2/6PK/P4q1P/8 b - - bm Qf1+; id "WAC.239 P478a";
8/1k6/1pp5/p6Q/2P5/KP6/P1q4P/8 b - - bm Qc1+; id "P478b";
8/p4Q1p/6pk/5p2/q6P/5PP1/6K1/8 w - - bm Qf8+; id "P478c";
8/p1Q4p/kp6/2p5/P6q/1PP5/1K6/8 w - - bm Qc8+; id "P478d";
2b4k/p1b2p2/2p2q2/3p1PNp/3P2R1/3B4/P1Q2PKP/4r3 w - - bm Qxc6; id "WAC.240 P480a";
k4b2/2p2b1p/2q2p2/pNP1p3/1R2P3/4B3/PKP2Q1P/3r4 w - - bm Qxf6; id "P480b";
4R3/p1q2pkp/3b4/3p2r1/3P1pnP/2P2Q2/P1B2P2/2B4K b - - bm Qxc3; id "P480c";
3R4/pkp2q1p/4b3/1r2p3/Pnp1P3/2Q2P2/2P2B1P/K4B2 b - - bm Qxf3; id "P480d";
2rq1rk1/pp3ppp/2n2b2/4NR2/3P4/PB5Q/1P4PP/3R2K1 w - - bm Qxh7+; id "WAC.241 P482a";
1kr1qr2/ppp3pp/2b2n2/2RN4/4P3/Q5BP/PP4P1/1K2R3 w - - bm Qxa7+; id "P482b";
3r2k1/1p4pp/pb5q/3p4/4nr2/2N2B2/PP3PPP/2RQ1RK1 b - - bm Qxh2+; id "P482c";
1k2r3/pp4p1/q5bp/4p3/2rn4/2B2N2/PPP3PP/1KR1QR2 b - - bm Qxa2+; id "P482d";
r1b1r1k1/pp1nqp2/2p1p1pp/8/4N3/P1Q1P3/1P3PPP/1BRR2K1 w - - bm Rxd7; id "WAC.242 P484a";
1k1r1b1r/2pqn1pp/pp1p1p2/8/3N4/3P1Q1P/PPP3P1/1K2RRB1 w - - bm Rxe7; id "P484b";
1brr2k1/1p3ppp/p1q1p3/4n3/8/2P1P1PP/PP1NQP2/R1B1R1K1 b - - bm Rxd2; id "P484c";
1k2rrb1/ppp3p1/3p1q1p/3n4/8/PP1P1P2/2PQN1PP/1K1R1B1R b - - bm Rxe2; id "P484d";
1r3r1k/3p4/1p1Nn1R1/4Pp1q/pP3P1p/P7/5Q1P/6RK w - - bm Qe2; id "WAC.243 P486a";
k1r3r1/4p3/1R1nN1p1/q1pP4/p1P3Pp/7P/P1Q5/KR6 w - - bm Qd2; id "P486b";
6rk/5q1p/p7/Pp3p1P/4pP1Q/1P1nN1r1/3P4/1R3R1K b - - bm Qe7; id "P486c";
kr6/p1q5/7p/P1p3pP/Q1Pp4/1r1Nn1P1/4P3/K1R3R1 b - - bm Qd7; id "P486d";
r6r/pp3ppp/3k1b2/2pb4/B4Pq1/2P1Q3/P5PP/1RBR2K1 w - - bm Qxc5+; id "WAC.244 P488a";
r6r/ppp3pp/2b1k3/4bp2/1qP4B/3Q1P2/PP5P/1K2RBR1 w - - bm Qxf5+; id "P488b";
1rbr2k1/p5pp/2p1q3/b4pQ1/2PB4/3K1B2/PP3PPP/R6R b - - bm Qxc4+; id "P488c";
1k2rbr1/pp5p/3q1p2/1Qp4b/4BP2/2B1K3/PPP3PP/R6R b - - bm Qxf4+; id "P488d";
4rrn1/ppq3bk/3pPnpp/2p5/2PB4/2NQ1RPB/PP5P/5R1K w - - bm Qxg6+; id "WAC.245 P490a";
1nrr4/kb3qpp/ppnPp3/5p2/4BP2/BPR1QN2/P5PP/K1R5 w - - bm Qxb6+; id "P490b";
5r1k/pp5p/2nq1rpb/2pb4/2P5/3PpNPP/PPQ3BK/4RRN1 b - - bm Qxg3+; id "P490c";
k1r5/p5pp/bpr1qn2/4bp2/5P2/PPNpP3/KB3QPP/1NRR4 b - - bm Qxb3+; id "P490d";
6R1/4qp1p/ppr1n1pk/8/1P2P1QP/6N1/P4PP1/6K1 w - - bm Qh5+; id "WAC.246 P492a";
1R6/p1pq4/kp1n1rpp/8/PQ1P2P1/1N6/1PP4P/1K6 w - - bm Qa5+; id "P492b";
6k1/p4pp1/6n1/1p2p1qp/8/PPR1N1PK/4QP1P/6r1 b - - bm Qh4+; id "P492c";
1k6/1pp4p/1n6/pq1p2p1/8/KP1N1RPP/P1PQ4/1r6 b - - bm Qa4+; id "P492d";
2k1r3/1p2Bq2/p2Qp3/Pb1p1p1P/2pP1P2/2P5/2P2KP1/1R6 w - - bm Rxb5; id "WAC.247 P494a";
3r1k2/2qB2p1/3pQ2p/P1p1p1bP/2P1Pp2/5P2/1PK2P2/6R1 w - - bm Rxg5; id "P494b";
1r6/2p2kp1/2p5/2Pp1p2/pB1P1P1p/P2qP3/1P2bQ2/2K1R3 b - - bm Rxb4; id "P494c";
6r1/1pk2p2/5p2/2p1pP2/p1P1P1Bp/3Pq2P/2Qb2P1/3R1K2 b - - bm Rxg4; id "P494d";
5r1k/1p4pp/3q4/3Pp1R1/8/8/PP4PP/4Q1K1 b - - bm Qc5+; id "WAC.248 P496a";
k1r5/pp4p1/4q3/1R1pP3/8/8/PP4PP/1K1Q4 b - - bm Qf5+; id "P496b";
4q1k1/pp4pp/8/8/3pP1r1/3Q4/1P4PP/5R1K w - - bm Qc4+; id "P496c";
1k1q4/pp4pp/8/8/1r1Pp3/4Q3/PP4P1/K1R5 w - - bm Qf4+; id "P496d";
r4rk1/pbq2pp1/1ppbpn1p/8/2PP4/1P1Q1N2/PBB2PPP/R3R1K1 w - - bm c5 d5; id "WAC.249 P498a";
1kr4r/1pp2qbp/p1npbpp1/8/4PP2/2N1Q1P1/PPP2BBP/1K1R3R w - - bm f5 e5; id "P498b";
r3r1k1/pbb2ppp/1p1q1n2/2pp4/8/1PPBPN1P/PBQ2PP1/R4RK1 b - - bm c4 d4; id "P498c";
1k1r3r/ppp2bbp/2n1q1p1/4pp2/8/P1NPBPP1/1PP2QBP/1KR4R b - - bm f4 e4; id "P498d";
1b5k/7P/p1p2np1/2P2p2/PP3P2/4RQ1R/q2r3P/6K1 w - - bm Re8+; id "WAC.250 P500a";
k5b1/P7/1pn2p1p/2p2P2/2P3PP/R1QR4/P3r2q/1K6 w - - bm Rd8+; id "P500b";
6k1/Q2R3p/4rq1r/pp3p2/2p2P2/P1P2NP1/7p/1B5K b - - bm Re1+; id "P500c";
1k6/p3R2Q/r1qr4/2p3pp/2P2p2/1PN2P1P/p7/K5B1 b - - bm Rd1+; id "P500d";
k7/p4p2/P1q1b1p1/3p3p/3Q4/7P/5PP1/1R4K1 w - - bm Qe5 Qf4; id "WAC.251 P502a";
7k/2p4p/1p1b1q1P/p3p3/4Q3/P7/1PP5/1K4R1 w - - bm Qd5 Qc4; id "P502b";
1r4k1/5pp1/7p/3q4/3P3P/p1Q1B1P1/P4P2/K7 b - - bm Qe4 Qf5; id "P502c";
1k4r1/1pp5/p7/4q3/P3P3/1P1B1Q1p/2P4P/7K b - - bm Qd4 Qc5; id "P502d";
1rb1r1k1/p1p2ppp/5n2/2pP4/5P2/2QB4/qNP3PP/2KRB2R b - - bm Bg4 Re2; c0 "Bg4 wins, but Re2 is far better."; id "WAC.252 P504a";
1k1r1br1/ppp2p1p/2n5/4Pp2/2P5/4BQ2/PP3PNq/R2BRK2 b - - bm Bb4 Rd2; id "P504b";
2krb2r/Qnp3pp/2qb4/5p2/2Pp4/5N2/P1P2PPP/1RB1R1K1 w - - bm Bg5 Re7; id "P504c";
r2brk2/pp3pnQ/4bq2/2p5/4pP2/2N5/PPP2P1P/1K1R1BR1 w - - bm Bb5 Rd7; id "P504d";
k5r1/p4b2/2P5/5p2/3P1P2/4QBrq/P5P1/4R1K1 w - - bm Qe8+; id "WAC.253 P506a";
1r5k/2b4p/5P2/2p5/2P1P3/qrBQ4/1P5P/1K1R4 w - - bm Qd8+; id "P506b";
4r1k1/p5p1/4qbRQ/3p1p2/5P2/2p5/P4B2/K5R1 b - - bm Qe1+; id "P506c";
1k1r4/1p5p/QRbq4/2p1p3/2P5/5p2/2B4P/1R5K b - - bm Qd1+; id "P506d";
r6k/pp3p1p/2p1bp1q/b3p3/4Pnr1/2PP2NP/PP1Q1PPN/R2B2RK b - - bm Nxh3; id "WAC.254 P508a";
k6r/p1p3pp/q1pb1p2/3p3b/1rnP4/PN2PP2/NPP1Q1PP/KR2B2R b - - bm Nxa3; id "P508b";
r2b2rk/pp1q1ppn/2pp2np/4pNR1/B3P3/2P1BP1Q/PP3P1P/R6K w - - bm Nxh6; id "P508c";
kr2b2r/npp1q1pp/pn2pp2/1RNp4/3P3B/Q1PB1P2/P1P3PP/K6R w - - bm Nxa6; id "P508d";
3r3r/p4pk1/5Rp1/3q4/1p1P2RQ/5N2/P1P4P/2b4K w - - bm Rfxg6+; id "WAC.255 P510a";
r3r3/1kp4p/1pR5/4q3/QR2P1p1/2N5/P4P1P/K4b2 w - - bm Rcxb6+; id "P510b";
2B4k/p1p4p/5n2/1P1p2rq/3Q4/5rP1/P4PK1/3R3R b - - bm Rfxg3+; id "P510c";
k4B2/p4p1p/2n5/qr2p1P1/4Q3/1Pr5/1KP4P/R3R3 b - - bm Rcxb3+; id "P510d";
3r1rk1/1pb1qp1p/2p3p1/p7/P2Np2R/1P5P/1BP2PP1/3Q1BK1 w - - bm Nf5; id "WAC.256 P512a";
1kr1r3/p1pq1bp1/1p3p2/7p/R2pN2P/P5P1/1PP2PB1/1KB1Q3 w - - bm Nc5; id "P512b";
3q1bk1/1bp2pp1/1p5p/p2nP2r/P7/2P3P1/1PB1QP1P/3R1RK1 b - - bm Nf4; id "P512c";
1kb1q3/1pp2pb1/p5p1/r2Pn2p/7P/1P3P2/P1PQ1BP1/1KR1R3 b - - bm Nc4; id "P512d";
4r1k1/pq3p1p/2p1r1p1/2Q1p3/3nN1P1/1P6/P1P2P1P/3RR1K1 w - - bm Rxd4; id "WAC.257 P514a";
1k1r4/p1p3qp/1p1r1p2/3p1Q2/1P1Nn3/6P1/P1P2P1P/1K1RR3 w - - bm Rxe4; id "P514b";
3rr1k1/p1p2p1p/1p6/3Nn1p1/2q1P3/2P1R1P1/PQ3P1P/4R1K1 b - - bm Rxd5; id "P514c";
1k1rr3/p1p2p1p/6p1/1p1nN3/3P1q2/1P1R1P2/P1P3QP/1K1R4 b - - bm Rxe5; id "P514d";
r3brkn/1p5p/2p2Ppq/2Pp3B/3Pp2Q/4P1R1/6PP/5R1K w - - bm Bxg6; id "WAC.258 P516a";
nkrb3r/p5p1/qpP2p2/B3pP2/Q2pP3/1R1P4/PP6/K1R5 w - - bm Bxb6; id "P516b";
5r1k/6pp/4p1r1/3pP2q/2pP3b/2P2pPQ/1P5P/R3BRKN b - - bm Bxg3; id "P516c";
k1r5/pp6/1r1p4/q2Pp3/b3Pp2/QPp2P2/P5P1/NKRB3R b - - bm Bxb3; id "P516d";
r1bq1rk1/ppp2ppp/2np4/2bN1PN1/2B1P3/3p4/PPP2nPP/R1BQ1K1R w - - bm Qh5; id "WAC.259 P518a";
1kr1qb1r/ppp2ppp/4pn2/1NP1Nb2/3P1B2/4p3/PPn2PPP/R1K1QB1R w - - bm Qa5; id "P518b";
r1bq1k1r/ppp2Npp/3P4/2b1p3/2Bn1pn1/2NP4/PPP2PPP/R1BQ1RK1 b - - bm Qh4; id "P518c";
r1k1qb1r/ppN2ppp/4P3/3p1b2/1np1nB2/4PN2/PPP2PPP/1KR1QB1R b - - bm Qa4; id "P518d";
2r2b1r/p1Nk2pp/3p1p2/N2Qn3/4P3/q6P/P4PP1/1R3K1R w - - bm Qe6+; id "WAC.260 P520a";
r1b2r2/pp2kN1p/2p1p3/3nQ2N/3P4/P6q/1PP4P/R1K3R1 w - - bm Qd6+; id "P520b";
1r3k1r/p4pp1/Q6p/4p3/n2qN3/3P1P2/P1nK2PP/2R2B1R b - - bm Qe3+; id "P520c";
r1k3r1/1pp4p/p6Q/3p4/3Nq2n/2P1P3/PP2Kn1P/R1B2R2 b - - bm Qd3+; id "P520d";
r5k1/1bp3pp/p2p4/1p6/5p2/1PBP1nqP/1PP3Q1/R4R1K b - - bm Nd4; id "WAC.261 P522a";
1k5r/pp3pb1/4p2p/6p1/2p5/Pqn1PBP1/1Q3PP1/K1R4R b - - bm Ne4; id "P522b";
r4r1k/1pp3q1/1pbp1NQp/5P2/1P6/P2P4/1BP3PP/R5K1 w - - bm Nd5; id "P522c";
k1r4r/1q3pp1/pQN1pbp1/2P5/6P1/4P2P/PP3PB1/1K5R w - - bm Ne5; id "P522d";
6k1/p1B1b2p/2b3r1/2p5/4p3/1PP1N1Pq/P2R1P2/3Q2K1 b - - bm Rh6; id "WAC.262 P524a";
1k6/p2b1B1p/1r3b2/5p2/3p4/qP1N1PP1/2P1R2P/1K2Q3 b - - bm Ra6; id "P524b";
3q2k1/p2r1p2/1pp1n1pQ/4P3/2P5/2B3R1/P1b1B2P/6K1 w - - bm Rh3; id "P524c";
1k2q3/2p1r2p/Qp1n1pp1/3P4/5P2/1R3B2/P2B1b1P/1K6 w - - bm Ra3; id "P524d";
rnbqr2k/pppp1Qpp/8/b2NN3/2B1n3/8/PPPP1PPP/R1B1K2R w KQ - bm Qg8+; id "WAC.263 P526a";
r1b1k2r/pppp1ppp/8/2b1N3/B2nn3/8/PPPP1qPP/RNBQR2K b KQ - bm Qg1+; id "P526c";
r2r2k1/1R2qp2/p5pp/2P5/b1PN1b2/P7/1Q3PPP/1B1R2K1 b - - bm Qe5 Rab8; id "WAC.264 P528a";
1k2r2r/2pq2R1/pp5p/5P2/2b1NP1b/7P/PPP3Q1/1K2R1B1 b - - bm Qd5 Rhg8; id "P528b";
1b1r2k1/1q3ppp/p7/B1pn1B2/2p5/P5PP/1r2QP2/R2R2K1 w - - bm Qe4 Rab1; id "P528c";
1k2r1b1/ppp3q1/7p/2B1np1B/5p2/PP5P/2PQ2r1/1K2R2R w - - bm Qd4 Rhg1; id "P528d";
2r1k2r/2pn1pp1/1p3n1p/p3PP2/4q2B/P1P5/2Q1N1PP/R4RK1 w k - bm exf6; id "WAC.265 P530a";
r4rk1/2q1n1pp/p1p5/4Q2b/P3pp2/1P3N1P/2PN1PP1/2R1K2R b k - bm exf3; id "P530c";
r3q2r/2p1k1p1/p5p1/1p2Nb2/1P2nB2/P7/2PNQbPP/R2R3K b - - bm Rxh2+; id "WAC.266 P532a";
r2q3r/1p1k1p2/1p5p/2bN2p1/2Bn2P1/7P/PPbQNP2/K3R2R b - - bm Rxa2+; id "P532b";
r2r3k/2pnqBpp/p7/1p2Nb2/1P2nB2/P5P1/2P1K1P1/R3Q2R w - - bm Rxh7+; id "P532c";
k3r2r/ppBqnp2/7p/2bN2p1/2Bn2P1/1P5P/1P1K1P2/R2Q3R w - - bm Rxa7+; id "P532d";
2r1kb1r/pp3ppp/2n1b3/1q1N2B1/1P2Q3/8/P4PPP/3RK1NR w Kk - bm Nc7+; id "WAC.267 P534a";
3rk1nr/p4ppp/8/1p2q3/1Q1n2b1/2N1B3/PP3PPP/2R1KB1R b Kk - bm Nc2+; id "P534c";
2r3kr/ppp2n1p/7B/5q1N/1bp5/2Pp4/PP2RPPP/R2Q2K1 w - - bm Re8+; id "WAC.268 P536a";
rk3r2/p1n2ppp/B7/N1q5/5pb1/4pP2/PPPR2PP/1K2Q2R w - - bm Rd8+; id "P536b";
r2q2k1/pp2rppp/2pP4/1BP5/5Q1n/7b/PPP2N1P/2R3KR b - - bm Re1+; id "P536c";
1k2q2r/pppr2pp/4Pp2/5PB1/n1Q5/b7/P1N2PPP/RK3R2 b - - bm Rd1+; id "P536d";
2kr2nr/pp1n1ppp/2p1p3/q7/1b1P1B2/P1N2Q1P/1PP1BPP1/R3K2R w KQ - bm axb4; id "WAC.269 P538a";
r3k2r/1pp1bpp1/p1n2q1p/1B1p1b2/Q7/2P1P3/PP1N1PPP/2KR2NR b KQ - bm axb5; id "P538c";
2r1r1k1/pp1q1ppp/3p1b2/3P4/3Q4/5N2/PP2RPPP/4R1K1 w - - bm Qg4; id "WAC.270 P540a";
1k1r1r2/ppp1q1pp/2b1p3/4P3/4Q3/2N5/PPPR2PP/1K1R4 w - - bm Qb4; id "P540b";
4r1k1/pp2rppp/5n2/3q4/3p4/3P1B2/PP1Q1PPP/2R1R1K1 b - - bm Qg5; id "P540c";
1k1r4/pppr2pp/2n5/4q3/4p3/2B1P3/PPP1Q1PP/1K1R1R2 b - - bm Qb5; id "P540d";
2kr4/ppp3Pp/4RP1B/2r5/5P2/1P6/P2p4/3K4 w - - bm Rd6; id "WAC.271 P542a";
4rk2/pP3ppp/B1PR4/5r2/2P5/6P1/4p2P/4K3 w - - bm Re6; id "P542b";
3k4/p2P4/1p6/5p2/2R5/4rp1b/PPP3pP/2KR4 b - - bm Rd3; id "P542c";
4k3/4P2p/6p1/2p5/5R2/b1pr4/Pp3PPP/4RK2 b - - bm Re3; id "P542d";
nrq4r/2k1p3/1p1pPnp1/pRpP1p2/P1P2P2/2P1BB2/1R2Q1P1/6K1 w - - bm Bxc5; id "WAC.272 P544a";
r4qrn/3p1k2/1pnPp1p1/2p1PpRp/2P2P1P/2BB1P2/1P1Q2R1/1K6 w - - bm Bxf5; id "P544b";
6k1/1r2q1p1/2p1bb2/p1p2p2/PrPp1P2/1P1PpNP1/2K1P3/NRQ4R b - - bm Bxc4; id "P544c";
1k6/1p1q2r1/2bb1p2/2p2p1p/2P1pPrP/1PNpP1P1/3P1K2/R4QRN b - - bm Bxf4; id "P544d";
2k4B/bpp1qp2/p1b5/7p/1PN1n1p1/2Pr4/P5PP/R3QR1K b - - bm Ng3+ g3; id "WAC.273 P546a";
B4k2/2pq1ppb/5b1p/p7/1p1n1NP1/4rP2/PP5P/K1RQ3R b - - bm Nb3+ b3; id "P546b";
r3qr1k/p5pp/2pR4/1pn1N1P1/7P/P1B5/BPP1QP2/2K4b w - - bm Ng6+ g6; id "P546c";
k1rq3r/pp5p/4Rp2/1P1N1np1/P7/5B1P/2PQ1PPB/b4K2 w - - bm Nb6+ b6; id "P546d";
8/1p6/p5R1/k7/Prpp4/K7/1NP5/8 w - - am Rd6; bm Rb6 Rg5+; id "WAC.274 P548a";
8/6p1/1R5p/7k/4pprP/7K/5PN1/8 w - - bm Rg6 Rb5+; id "P548b";
8/1np5/k7/pRPP4/K7/P5r1/1P6/8 b - - bm Rb3 Rg4+; id "P548c";
8/5pn1/7k/4PPRp/7K/1r5P/6P1/8 b - - bm Rg3 Rb4+; id "P548d";
r1b2rk1/1p1n1ppp/p1p2q2/4p3/P1B1Pn2/1QN2N2/1P3PPP/3R1RK1 b - - bm Nc5 Nxg2 b5; id "WAC.275 P550a";
1kr2b1r/ppp1n1p1/2q2p1p/3p4/2nP1B1P/2N2NQ1/PPP3P1/1KR1R3 b - - bm Nf5 Nxb2 g5; id "P550b";
3r1rk1/1p3ppp/1qn2n2/p1b1pN2/4P3/P1P2Q2/1P1N1PPP/R1B2RK1 w - - bm Nc4 Nxg7 b4; id "P550c";
1kr1r3/ppp3p1/2n2nq1/2Np1b1p/3P4/2Q2P1P/PPP1N1P1/1KR2B1R w - - bm Nf4 Nxb7 g4; id "P550d";
r5k1/pp1RR1pp/1b6/6r1/2p5/B6P/P4qPK/3Q4 w - - bm Qd5+; id "WAC.276 P552a";
1k5r/pp1RR1pp/6b1/1r6/5p2/P6B/KPq4P/4Q3 w - - bm Qe5+; id "P552b";
3q4/p4Qpk/b6p/2P5/6R1/1B6/PP1rr1PP/R5K1 b - - bm Qd4+; id "P552c";
4q3/kpQ4p/p6b/5P2/1R6/6B1/PP1rr1PP/1K5R b - - bm Qe4+; id "P552d";
1r4r1/p2kb2p/bq2p3/3p1p2/5P2/2BB3Q/PP4PP/3RKR2 b - - bm Rg3 Rxg2; id "WAC.277 P554a";
1r4r1/p2bk2p/3p2qb/2p1p3/2P5/Q3BB2/PP4PP/2RKR3 b - - bm Rb3 Rxb2; id "P554b";
3rkr2/pp4pp/2bb3q/5p2/3P1P2/BQ2P3/P2KB2P/1R4R1 w - - bm Rg6 Rxg7; id "P554c";
2rkr3/pp4pp/q3bb2/2p5/2P1P3/3P2QB/P2BK2P/1R4R1 w - - bm Rb6 Rxb7; id "P554d";
r2qkb1r/pppb2pp/2np1n2/5pN1/2BQP3/2N5/PPP2PPP/R1B1K2R w KQkq - bm Bf7+; id "WAC.278 P556a";
r1b1k2r/ppp2ppp/2n5/2bqp3/5Pn1/2NP1N2/PPPB2PP/R2QKB1R b KQkq - bm Bf2+; id "P556c";
r7/4b3/2p1r1k1/1p1pPp1q/1P1P1P1p/PR2NRpP/2Q3K1/8 w - - bm Nxf5 Rc3; id "WAC.279 P558a";
7r/3b4/1k1r1p2/q1pPp1p1/p1P1P1P1/PpRN2RP/1K3Q2/8 w - - bm Nxc5 Rf3; id "P558b";
8/2q3k1/pr2nrPp/1p1p1p1P/1P1PpP1Q/2P1R1K1/4B3/R7 b - - bm Nxf4 Rc6; id "P558c";
8/1k3q2/pPrn2rp/P1p1p1p1/Q1PpP1P1/1K1R1P2/3B4/7R b - - bm Nxc4 Rf6; id "P558d";
r1r2bk1/5p1p/pn4p1/N2b4/3Pp3/B3P3/2q1BPPP/RQ3RK1 b - - bm Bxa3; id "WAC.280 P560a";
1kb2r1r/p1p5/1p4np/4b2N/3pP3/3P3B/PPPB1q2/1KR3QR b - - bm Bxh3; id "P560b";
rq3rk1/2Q1bppp/b3p3/3pP3/n2B4/PN4P1/5P1P/R1R2BK1 w - - bm Bxa6; id "P560c";
1kr3qr/pppb1Q2/3p3b/3Pp3/4B2n/1P4NP/P1P5/1KB2R1R w - - bm Bxh6; id "P560d";
2R5/2R4p/5p1k/6n1/8/1P2QPPq/r7/6K1 w - - bm Rxh7+; id "WAC.281 P562a";
5R2/p4R2/k1p5/1n6/8/qPPQ2P1/7r/1K6 w - - bm Rxa7+; id "P562b";
6k1/R7/1p2qppQ/8/6N1/5P1K/2r4P/2r5 b - - bm Rxh2+; id "P562c";
1k6/7R/Qppq2p1/8/1N6/K1P5/P4r2/5r2 b - - bm Rxa2+; id "P562d";
6k1/2p3p1/1p1p1nN1/1B1P4/4PK2/8/2r3b1/7R w - - bm Rh8+; id "WAC.282 P564a";
1k6/1p3p2/1Nn1p1p1/4P1B1/2KP4/8/1b3r2/R7 w - - bm Ra8+; id "P564b";
7r/2R3B1/8/4pk2/1b1p4/1P1P1Nn1/2P3P1/6K1 b - - bm Rh1+; id "P564c";
r7/1B3R2/8/2kp4/4p1b1/1nN1P1P1/1P3P2/1K6 b - - bm Ra1+; id "P564d";
3q1rk1/4bp1p/1n2P2Q/3p1p2/6r1/Pp2R2N/1B4PP/7K w - - bm Ng5; id "WAC.283 P566a";
1kr1q3/p1pb4/Q2P2n1/2p1p3/1r6/N2R2pP/PP4B1/K7 w - - bm Nb5; id "P566b";
7k/1b4pp/pP2r2n/6R1/3P1P2/1N2p2q/4BP1P/3Q1RK1 b - - bm Ng4; id "P566c";
k7/pp4b1/n2r2Pp/1R6/2P1P3/q2p2N1/P1PB4/1KR1Q3 b - - bm Nb4; id "P566d";
3r3k/pp4pp/8/1P6/3N4/Pn2P1qb/1B1Q2B1/2R3K1 w - - bm Nf5; id "WAC.284 P568a";
k3r3/pp4pp/8/6P1/4N3/bq1P2nP/1B2Q1B1/1K3R2 w - - bm Nc5; id "P568b";
2r3k1/1b1q2b1/pN2p1QB/3n4/1p6/8/PP4PP/3R3K b - - bm Nf4; id "P568c";
1k3r2/1b2q1b1/BQ1p2Np/4n3/6p1/8/PP4PP/K3R3 b - - bm Nc4; id "P568d";
2rr3k/1b2bppP/p2p1n2/R7/3P4/1qB2P2/1P4Q1/1K5R w - - bm Qxg7+; id "WAC.285 P570a";
k3rr2/Pppb2b1/2n1p2p/7R/4P3/2P2Bq1/1Q4P1/R5K1 w - - bm Qxb7+; id "P570b";
1k5r/1p4q1/1Qb2p2/3p4/r7/P2P1N2/1B2BPPp/2RR3K b - - bm Qxg2+; id "P570c";
r5k1/1q4p1/2p2bQ1/4p3/7r/2N1P2P/pPPB2B1/K3RR2 b - - bm Qxb2+; id "P570d";
3r1k2/1p6/p4P2/2pP2Qb/8/1P1KB3/P6r/8 b - - bm Rxd5+; id "WAC.286 P572a";
2k1r3/6p1/2P4p/bQ2Pp2/8/3BK1P1/r6P/8 b - - bm Rxe5+; id "P572b";
8/p6R/1p1kb3/8/2Pp2qB/P4p2/1P6/3R1K2 w - - bm Rxd4+; id "P572c";
8/R6p/3bk1p1/8/Bq2pP2/2p4P/6P1/2K1R3 w - - bm Rxe4+; id "P572d";
rn3k1r/pp2bBpp/2p2n2/q5N1/3P4/1P6/P1P3PP/R1BQ1RK1 w - - bm Qg4 Qh5; id "WAC.287 P574a";
r1k3nr/ppBb2pp/2n2p2/1N5q/4P3/6P1/PP3P1P/1KR1QB1R w - - bm Qb4 Qa5; id "P574b";
r1bq1rk1/p1p3pp/1p6/3p4/Q5n1/2P2N2/PP2BbPP/RN3K1R b - - bm Qg5 Qh4; id "P574c";
1kr1qb1r/pp3p1p/6p1/4p3/1n5Q/2N2P2/PPbB2PP/R1K3NR b - - bm Qb5 Qa4; id "P574d";
r1b2rk1/p4ppp/1p1Qp3/4P2N/1P6/8/P3qPPP/3R1RK1 w - - bm Nf6+; id "WAC.288 P576a";
1kr2b1r/ppp4p/3pQ1p1/N2P4/6P1/8/PPPq3P/1KR1R3 w - - bm Nc6+; id "P576b";
3r1rk1/p3Qppp/8/1p6/4p2n/1P1qP3/P4PPP/R1B2RK1 b - - bm Nf3+; id "P576c";
1kr1r3/pppQ3p/8/6p1/n2p4/3Pq1P1/PPP4P/1KR2B1R b - - bm Nc3+; id "P576d";
2r3k1/5p1p/p3q1p1/2n3P1/1p1QP2P/1P4N1/PK6/2R5 b - - bm Qe5; id "WAC.289 P578a";
1k3r2/p1p5/1p1q3p/1P3n2/P2PQ1p1/1N4P1/6KP/5R2 b - - bm Qd5; id "P578b";
2r5/pk6/1p4n1/1P1qp2p/2N3p1/P3Q1P1/5P1P/2R3K1 w - - bm Qe4; id "P578c";
5r2/6kp/1n4p1/p2pq1P1/1p3N2/1P1Q3P/P1P5/1K3R2 w - - bm Qd4; id "P578d";
2k2r2/2p5/1pq5/p1p1n3/P1P2n1B/1R4Pp/2QR4/6K1 b - - bm Ne2+; id "WAC.290 P580a";
2r2k2/5p2/5qp1/3n1p1p/B1n2P1P/pP4R1/4RQ2/1K6 b - - bm Nd2+; id "P580b";
6k1/2qr4/1r4pP/p1p2N1b/P1P1N3/1PQ5/2P5/2K2R2 w - - bm Ne7+; id "P580c";
1k6/4rq2/Pp4r1/b1N2p1p/3N1P1P/5QP1/5P2/2R2K2 w - - bm Nd7+; id "P580d";
5r1k/3b2p1/p6p/1pRpR3/1P1P2q1/P4pP1/5QnP/1B4K1 w - - bm h3; id "WAC.291 P582a";
k1r5/1p2b3/p6p/3RpRp1/1q2P1P1/1Pp4P/PnQ5/1K4B1 w - - bm a3; id "P582b";
1b4k1/5qNp/p4Pp1/1p1p2Q1/1PrPr3/P6P/3B2P1/5R1K b - - bm h6; id "P582c";
1k4b1/pNq5/1pP4p/1Q2p1p1/3rPrP1/P6P/1P2B3/K1R5 b - - bm a6; id "P582d";
4r3/1Q1qk2p/p4pp1/3Pb3/P7/6PP/5P2/4R1K1 w - - bm d6+; id "WAC.292 P584a";
3r4/p2kq1Q1/1pp4p/3bP3/7P/PP6/2P5/1K1R4 w - - bm e6+; id "P584b";
4r1k1/5p2/6pp/p7/3pB3/P4PP1/1q1QK2P/4R3 b - - bm d3+; id "P584c";
1k1r4/2p5/pp6/7p/3Bp3/1PP4P/P2KQ1q1/3R4 b - - bm e3+; id "P584d";
1nbq1r1k/3rbp1p/p1p1pp1Q/1p6/P1pPN3/5NP1/1P2PPBP/R4RK1 w - - bm Nfg5; id "WAC.293 P586a";
k1r1qbn1/p1pbr3/Q1pp1p1p/6p1/3NPp1P/1PN5/PBPP2P1/1KR4R w - - bm Ncb5; id "P586b";
r4rk1/1p2ppbp/5np1/p1Ppn3/1P6/P1P1PP1q/3RBP1P/1NBQ1R1K b - - bm Nfg4; id "P586c";
1kr4r/pbpp2p1/1pn5/3npP1p/6P1/q1PP1P1P/P1PBR3/K1R1QBN1 b - - bm Ncb4; id "P586d";
3r3k/1r3p1p/p1pB1p2/8/p1qNP1Q1/P6P/1P4P1/3R3K w - - bm Bf8 Nf5 Qf4; id "WAC.294 P588a";
k3r3/p1p3r1/2p1Bp1p/8/1Q1PNq1p/P6P/1P4P1/K3R3 w - - bm Bc8 Nc5 Qc4; id "P588b";
3r3k/1p4p1/p6p/P1Qnp1q1/8/P1Pb1P2/1R3P1P/3R3K b - - bm Bf1 Nf4 Qf5; id "P588c";
k3r3/1p4p1/p6p/1q1pnQ1P/8/2P1bP1P/P1P3R1/K3R3 b - - bm Bc1 Nc4 Qc5; id "P588d";
4r3/p4r1p/R1p2pp1/1p1bk3/4pNPP/2P1K3/2P2P2/3R4 w - - bm Rxd5+; id "WAC.295 P590a";
3r4/p1r4p/1pp2p1R/3kb1p1/PPNp4/3K1P2/2P2P2/4R3 w - - bm Rxe5+; id "P590b";
3r4/2p2p2/2p1k3/4Pnpp/1P1BK3/r1P2PP1/P4R1P/4R3 b - - bm Rxd4+; id "P590c";
4r3/2p2p2/3k1p2/ppnP4/3KB1P1/1PP2P1r/P1R4P/3R4 b - - bm Rxe4+; id "P590d";
3r4/1p2k2p/p1b1p1p1/4Q1Pn/2B3KP/4pP2/PP2R1N1/6q1 b - - bm Rd4+ Rf8; id "WAC.296 P592a";
4r3/p2k2p1/1p1p1b1p/nP1Q4/PK3B2/2Pp4/1N1R2PP/1q6 b - - bm Re4+ Rc8; id "P592b";
6Q1/pp2r1n1/4Pp2/2b3kp/4q1pN/P1B1P1P1/1P2K2P/3R4 w - - bm Rd5+ Rf1; id "P592c";
1Q6/1n1r2pp/2pP4/pk3b2/Np1q4/1P1P1B1P/P2K2P1/4R3 w - - bm Re5+ Rc1; id "P592d";
3r1rk1/p3qp1p/2bb2p1/2p5/3P4/1P6/PBQN1PPP/2R2RK1 b - - bm Bxg2 Bxh2+; id "WAC.297 P594a";
1kr1r3/p1pq3p/1p2bb2/5p2/4P3/6P1/PPP1NQBP/1KR2R2 b - - bm Bxb2 Bxa2+; id "P594b";
2r2rk1/pbqn1ppp/1p6/3p4/2P5/2BB2P1/P3QP1P/3R1RK1 w - - bm Bxg7 Bxh7+; id "P594c";
1kr2r2/ppp1nqbp/6p1/4p3/5P2/1P2BB2/P1PQ3P/1KR1R3 w - - bm Bxb7 Bxa7+; id "P594d";
3Q4/p3b1k1/2p2rPp/2q5/4B3/P2P4/7P/6RK w - - bm Qh8+; id "WAC.298 P596a";
4Q3/1k1b3p/pPr2p2/5q2/3B4/4P2P/P7/KR6 w - - bm Qa8+; id "P596b";
6rk/7p/p2p4/4b3/2Q5/2P2RpP/P3B1K1/3q4 b - - bm Qh1+; id "P596c";
kr6/p7/4p2p/3b4/5Q2/PpR2P2/1K1B3P/4q3 b - - bm Qa1+; id "P596d";
1n2rr2/1pk3pp/pNn2p2/2N1p3/8/6P1/PP2PPKP/2RR4 w - - bm Nca4; id "WAC.299 P598a";
2rr2n1/pp3kp1/2p2nNp/3p1N2/8/1P6/PKPP2PP/4RR2 w - - bm Nfh4; id "P598b";
2rr4/pp2ppkp/6p1/8/2n1P3/PnN2P2/1PK3PP/1N2RR2 b - - bm Nca5; id "P598c";
4rr2/pkpp2pp/1p6/8/3P1n2/2P2NnP/PP3KP1/2RR2N1 b - - bm Nfh5; id "P598d";
b2b1r1k/3R1ppp/4qP2/4p1PQ/4P3/5B2/4N1K1/8 w - - bm g6; id "WAC.300 P600a";
k1r1b2b/ppp1R3/2Pq4/QP1p4/3P4/2B5/1K1N4/8 w - - bm b6; id "P600b";
8/4n1k1/5b2/4p3/4P1pq/4Qp2/3r1PPP/B2B1R1K b - - bm g3; id "P600c";
8/1k1n4/2b5/3p4/qp1P4/2pQ4/PPP1r3/K1R1B2B b - - bm b3; id "P600d";

I couldnt get what you mean 4 way reflection and how to use these FEN positions to test.
despite the fact that I couldnt fully understand the philosophy of quiescence function but yes. I implemented that from some available pseudo codes from the internet. Still I'm not sure why we have to throw engine thinking sequence to captures. I'm wondering what will happen if a move (lets say position) on the lowest node of search tree be perfect if and only if we will not fall ourselves to capture sequence.

The FENs are easy. Each of the 4 positions in a set should have the same static evaluation score, or there is a bug in your eval code.

Q-search is needed because the engine will play terrible chess if you leave pieces hanging to be captured at the leaves of the regular search. Q-search follows capture sequences until the the board is "quiet". No, it is not totally accurate, but it is a huge help. This gives your eval function a chance to be somewhat meaningful.

Okay, while black's 25th move (e6-e5) is not great it could be explained by a shallow search and/or simple eval function. White's 26th move (e3xd5) is the real blunder but that's not your concern. The remainder are not serious mistakes at this point.

The move by your engine worthy of investigation is 8...e6-c8 (should be d8xd5 winning the knight). The only explanation that jumps out at me is if your engine is only doing a 4 ply search before entering the Q-search at which point white can push the knights capture over the search horizon like so:

8...d8xd5 9. d1xd5 e6xd5 10. c2-c4

now we enter Q-search and the only captures are 10...d5xc4 (which loses a piece after 11. e5xc4) and 10...f6xe5 (and white responds 11. c4xd5 and material is about even). So basically black either plays 10...f6xe5 or stands pat. Either way material is about even and it can't see that the knight can't move and will be captured on black's next move.

So is the main search only to depth 4?

Regardless there are a couple of things you will need to do as you go forward to debug these types of situations. First and foremost you need to have confidence that you are generating all the correct legal moves in any situation, so have you written a PERFT function so you can test that? Thats unlikely to be the problem in this case but in the future you will have plenty of confusing moves and the last thing you want to worry about is wether your MoveGen is corrupted. And secondly when you finish the search you want to display the PV with the best move and the score. This way you can see how the engine thinks play will continue, which can often give you clues as to what is wrong.

Yes, exactly. because i just set that to search very limited fixed depth since there was no improvement to raw alpha beta such as move ordering or PVS or any pruning techniques.

I thought about many kind of ways to implement good search but some are not possible due to memory limitation and some idea's was hard to implement.

one of the simple idea's i read somewhere is incrementing src square to dst square for any ply. how is the efficiency of this way