Discussion about chess-playing software (engines, hosts, opening books, platforms, etc...)
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lucasart
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by lucasart » Thu Jan 01, 2015 5:08 am
This set of openings is designed especially for engine testing:
- 29692 unique 5-ply openings
- extremely diverse, far away from known theory for the most part
- all tested and shown to be reasonably balanced
I post this for anyone interested:
- engine developpers who want to increase their testing resolution.
- engine testers who want to reduce draw rates, and see unorthodox games.
And also for my own record, as I am good at losing files, so uploading saved my quite a few times...
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Attachments
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- book5.epd.gz
- (260.68 KiB) Downloaded 724 times
"Talk is cheap. Show me the code." -- Linus Torvalds.
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User923005
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by User923005 » Tue Jan 13, 2015 6:17 am
This is a really interesting experiment.
According to my analysis, there are 1134 positions with a score of +/- 50 centipawns or more, and 151 with a score of +/- 75 centipawns or more.
These are the positions with a score of at least one full pawn:
rnbqk1nr/pppp1ppp/8/2b1p3/1P2P2P/8/P1PP1PP1/RNBQKBNR b KQkq - acd 33; acs 380; bm Bxb4; ce 110; pm Bxb4; pv Bxb4 c3 Ba5 Na3 Nf6 Nc4 Bb6 Qa4 O-O Ba3 d6 Nxb6 cxb6 f3 Qc7 Bc4 Nc6 Ne2 a6 Qc2 b5 Bb3 Be6 Bxe6 fxe6 O-O Rac8 Rab1 Rfd8 Qd1 d5 Ng3 Na5 exd5 Nc4;
rnbqkb1r/pppp1ppp/4p2n/8/1P6/2N4P/P1PPPPP1/R1BQKBNR b KQkq - acd 33; acs 287; bm Bxb4; ce 110; pm Bxb4; pv Bxb4 e4 O-O Rb1 c5 Nf3 f5 e5 Nf7 Be2 Bxc3 dxc3 Nc6 Bf4 Qc7 Qd2 h6 Bh2 g5 Bb5 b6 Rd1 a6 Bxc6 dxc6 Qe3 Rd8 Rxd8+ Qxd8 c4 Qc7 O-O Bb7 Rd1 Rd8 Rxd8+ Qxd8 Qd3 Qc7;
r1bqkbnr/ppp1pppp/n7/3p4/6P1/3P4/PPPNPP1P/R1BQKBNR b KQkq - acd 32; acs 532; bm Bxg4; ce 106; pm Bxg4; pv Bxg4 Ngf3 e6 Rg1 Bh5 e3 Nf6 Be2 g6 b3 c5 Bb2 Bg7 a3 O-O c4 Nd7 Bxg7 Kxg7 cxd5 exd5 d4 Rc8 Kf1 Qf6 Bb5 Qe7 Kg2 cxd4 exd4 Nc7 Bxd7 Bxf3+ Qxf3;
rnbqk1nr/ppppppbp/6p1/8/4PPP1/8/PPPP3P/RNBQKBNR b KQkq - acd 33; acs 624; bm e5; ce 104; pm e5; pv e5 Qe2 Nc6 Nf3 exf4 Nc3 d6 h3 g5 Qg2 h6 Bc4 Bxc3 bxc3 Nf6 d3 Qe7 Kd1 Be6 Bb5 O-O c4 Ne5 Rb1 Nxf3 Qxf3 c6 Ba4 Rab8 Bb2 b5 cxb5 cxb5 Bxf6 Qxf6 Rxb5 Bxa2;
rnbqk1nr/ppppbppp/4p3/6P1/8/4P3/PPPP1P1P/RNBQKBNR b KQkq - acd 32; acs 276; bm Bxg5; ce 103; pm Bxg5; pv Bxg5 d4 d5 Bg2 Be7 Ne2 Nf6 c4 O-O O-O b6 b3 c6 Nd2 Bb7 e4 dxe4 Nxe4 Nxe4 Bxe4 Bd6 Qd3 Qh4 h3 Nd7 Bd2 a5 Bg2 Rfd8 Rae1 Nf6 f4 Bc5 Qe3 Bb4 Bc3;
rn1qkbnr/ppp1pppp/3p4/5b2/1P4P1/2N5/P1PPPP1P/R1BQKBNR b KQkq - acd 33; acs 307; bm Bxg4; ce 101; pm Bxg4; pv Bxg4 Nd5 e5 c4 Ne7 Ne3 Be6 Nf3 Nf5 d3 Be7 Nd5 O-O Rg1 Nd7 Bd2 Bf6 Nxf6+ Nxf6 Bc3 Re8 b5 h6 Nd2 Bd7 Bg2 d5 cxd5 Bxb5 a4 Ba6 Qb3 Nd4 Bxd4 exd4;
rn1qkbnr/ppp1pppp/3pb3/8/1P4P1/5N2/P1PPPP1P/RNBQKB1R b KQkq - acd 32; acs 509; bm Bxg4; ce 100; pm Bxg4; pv Bxg4 Bg2 Nf6 c4 e5 O-O Nbd7 d4 c6 Nc3 h6 h3 Be6 d5 cxd5 cxd5 Bf5 Nd2 Be7 e4 Bg6 Bf3 Rc8 Bb2 O-O Re1 Nb6 Re3 Nc4 Nxc4 Rxc4 a3 Qc8 Qf1 a6;
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Attachments
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- book5.7z
- Analyzed EPD for opening book, sorted by abs(ce)
- (602.13 KiB) Downloaded 361 times
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lucasart
- Posts: 201
- Joined: Mon Dec 17, 2012 1:09 pm
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by lucasart » Tue Jan 13, 2015 12:45 pm
User923005 wrote:
According to my analysis, there are 1134 positions with a score of +/- 50 centipawns or more, and 151 with a score of +/- 75 centipawns or more.
Which engine ? What tc ?
I used Critter 1.6a and Komodo CCT, because I don't trust Stockfish evaluation.
"Talk is cheap. Show me the code." -- Linus Torvalds.
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lucasart
- Posts: 201
- Joined: Mon Dec 17, 2012 1:09 pm
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by lucasart » Tue Jan 13, 2015 12:50 pm
User923005 wrote:
These are the positions with a score of at least one full pawn:
rnbqk1nr/pppp1ppp/8/2b1p3/1P2P2P/8/P1PP1PP1/RNBQKBNR b KQkq - acd 33; acs 380; bm Bxb4; ce 110; pm Bxb4; pv Bxb4 c3 Ba5 Na3 Nf6 Nc4 Bb6 Qa4 O-O Ba3 d6 Nxb6 cxb6 f3 Qc7 Bc4 Nc6 Ne2 a6 Qc2 b5 Bb3 Be6 Bxe6 fxe6 O-O Rac8 Rab1 Rfd8 Qd1 d5 Ng3 Na5 exd5 Nc4;
It's a matter of which engine you use. With Critter 1.6a, using 8 threads and 2048 MB Hash, even the worst position according to your analysis is playable:
