Bd1! (good test move)

[biscuit1953]

From "How to Reassess Your Chess" page 112.
"Black thinks he has everything under control, but white's next move shows he's badly mistaken. 22.Bd1! and suddenly black's Bishop is about to be surrounded by g2-g4."

[Site "San Francisco"]
[Date "1977"]
[White "J. Silman"]
[Black "R. Schain"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.h3 Nc6 8.Bc4 O-O 9.Bb3 Bd7 10.O-O Qc8 11.f4 Rd8 12.Qf3 Nxd4 13.Bxd4
Bc6 14.Rad1 b5 15.Nd5 Nxd5 16.exd5 Bd7 17.Rfe1 Re8 18.c3 h5 19.Re3 Bf5 20.Bxg7 Kxg7 21.Rde1 Qd7 *
r3r3/p2qppk1/3p2p1/1p1P1b1p/5P2/1BP1RQ1P/PP4P1/4R1K1 w - - 2 22
It took Crafty 23.4 1:04 to come find Bd1 with a score of +1.20 on my laptop.

[zullil]

r3r3/p2qppk1/3p2p1/1p1P1b1p/5P2/1BP1RQ1P/PP4P1/4R1K1 w - - 2 22
It took Crafty 23.4 1:04 to come find Bd1 with a score of +1.20 on my laptop.

Two seconds for Critter (8 threads):

Code: Select all

Critter v1.4 64-bit SSE4, by Richard Vida
setoption name Hash value 4096
setboard  r3r3/p2qppk1/3p2p1/1p1P1b1p/5P2/1BP1RQ1P/PP4P1/4R1K1 w - - 2 22 
info string Opening book: "book.cbk" - 57853 entries [native]
info string GTB Init OK (5 piece set)
info string Using 8 thread(s), 4096 MB hash
go infinite
 2/ 2  00:00       130    5909  -0.04 c4 bxc4 Bxc4 Rac8
 2/ 2  00:00       409   17782  +0.35 Qe2 Kf8
 3/ 4  00:00       698   29083  +0.56 Qe2 Kf8 Bc2
 4/ 4  00:00       960   40000  +0.55 Qe2 Kf8 Bc2 Bxc2 Qxc2 Kg8
 5/ 6  00:00      1373   54920  +0.55 Qe2 Kf8 Bc2 Bxc2 Qxc2 Kg8
 6/ 8  00:00      2103   77888  +0.56 Qe2 Kf8 Bc2 Bxc2 Qxc2 Kg8 c4 Rac8
 7/10  00:00      4378  128764  +0.70 Qe2 Kf8 Bc2 Bxc2 Qxc2 Kg8 Qe2 Qb7 Rxe7 Rxe7 Qxe7 Qxd5
 8/10- 00:00      6322  162102  +0.61 Qe2 Kf8 Bc2 Bxc2 Qxc2 Kg8 Qe2 Qb7 Rxe7 Rxe7 Qxe7 Qxd5
 8/10- 00:00      6786  174000  +0.53 Qe2 Kf8 Bc2 Bxc2 Qxc2 Kg8 Qe2 Qb7 Rxe7 Rxe7 Qxe7 Qxd5
 8/10- 00:00      7757  184690  +0.40 Qe2 Kf8 Bc2 Bxc2 Qxc2 Kg8 Qe2 Qb7 Rxe7 Rxe7 Qxe7 Qxd5
 8/10  00:00      9358  207955  +0.44 Qe2 Kf8 Bc2 Bxc2 Qxc2 Rac8 Re4 Kg7 Qd3
 9/13  00:00     17227  277854  +0.45 Qe2 Kf8 Qf2 Kg8 Bc2 Bxc2 Qxc2 Rac8 Qe2 Rc7 Qd3
10/18  00:00     62524  496222  +0.38 Qe2 Kf8 Qf2 Kg7 Bc2 Bxc2 Qxc2 Rac8 b3 Kg8 Qd3 a6
11/20+ 00:00    118885  594425  +0.46 Qe2 Kf8 Qf2 Kg7 Bc2 Bxc2 Qxc2 Rac8 b3 Kg8 Qd3 h4 R3e2 a5 Qd4
11/20+ 00:00    144102  597933  +0.55 Qe2 Kf8 Qf2 Kg7 Bc2 Bxc2 Qxc2 Rac8 b3 Kg8 Qd3 h4 R3e2 a5 Qd4
11/24  00:00    173399  625989  +0.53 Qe2 Kf8 Qf2 Kg7 Bc2 Bxc2 Qxc2 a6 f5 gxf5 Qe2 f4 Rxe7 Rxe7 Qxe7 Qxe7 Rxe7 Rg8
12/24  00:00    204346  678890  +0.53 Qe2 Kf8 Qf2 Kg7 Bc2 Bxc2 Qxc2 a6 f5 gxf5 Qe2 f4 Rxe7 Rxe7 Qxe7 Qxe7 Rxe7 Rg8
13/28- 00:01   1478371 1442313  +0.44 Qe2 Kf8 Qf2 Kg7 Bc2 Bxc2 Qxc2 a6 f5 gxf5 Qe2 f4 Rxe7 Rxe7 Qxe7 Qxe7 Rxe7 Rg8
13/28  00:01   1631616 1467280  +0.43 Qe2 Kf8 Qf2 Kg7 Bc2 a5 Be4 Bxe4 Rxe4 Kg8 Qe2 Ra7 Qd3 Rc7 a3
14/28  00:01   2001894 1541103  +0.45 Qe2 Kf8 Qf2 Kg7 Qh4 f6 Qf2 Rac8 Bc2 Rc7 Be4 Bxe4 Rxe4 Qf5 Qd4
15/29  00:01   2660293 1734219  +0.43 Qe2 a5 Rxe7 Rxe7 Qxe7 Qxe7 Rxe7 a4 Bd1 a3 bxa3 Rxa3 Bb3 Kf6 Rc7 Bb1 Rc6 Bxa2 Bxa2 Rxa2 Rxd6+ Kf5 Rd7 f6 g3 Ke4 d6 Kf5
16/42+ 00:02   8767101 3365489  +0.52 Bd1 a5 g4 hxg4 hxg4 Bb1 a3 Ba2 f5 Qa7 fxg6 fxg6 Kg2 Qb7 b3 Bb1 Re6
16/42+ 00:03  11479584 3799928  +0.60 Bd1 a5 g4 hxg4 hxg4 Bb1 a3 Ba2 f5 Qa7 fxg6 fxg6 Bc2 e6 Qe4 Bxd5 Qxg6+ Kh8 Kh2 Qg7 Rh3+ Kg8 Qh5 Qf6 Bf5
16/43+ 00:03  19554663 4939293  +0.73 Bd1 a5 g4 hxg4 hxg4 Bb1 a3 Ba2 f5 Qa7 Kg2 gxf5 Qxf5 Qb7 Bf3 f6 g5
16/48  00:06  41232646 6096798  +0.65 Bd1 Bb1 a3 a6 Qg3 Qf5 Qg5 Qxg5 fxg5 Ra7 Bxh5 Ba2 Bf3 Bc4 g3 Rd7 h4 Rc7 Kh2 Kh7 Kg2 Kg7 Rd1 Rec8 Be2
17/48  00:07  44845216 6152451  +0.65 Bd1 Bb1 a3 a6 Qg3 Qf5 Qg5 Qxg5 fxg5 Ra7 Bxh5 Ba2 Bf3 Bc4 g3 Rd7 h4 Rc7 Kh2 Kh7 Kg2 Kg7 Rd1 Rec8 Be2
18/48  00:07  46653187 6199759  +0.65 Bd1 Bb1 a3 a6 Qg3 Qf5 Qg5 Qxg5 fxg5 Ra7 Bxh5 Ba2 Bf3 Bc4 g3 Rd7 h4 Rc7 Kh2 Kh7 Kg2 Kg7 Rd1 Rec8 Be2
19/48+ 00:07  50376580 6311272  +0.73 Bd1 Bb1 a3 a6 Qg3 Qf5 Qg5 Qxg5 fxg5 Ra7 Bxh5 Ba2 Bf3 Bc4 g3 Rd7 h4 Rc7 Kh2 Rb7 Kg2 a5 Rd1
19/48+ 00:08  56226035 6456825  +0.82 Bd1 Bb1 a3 a6 Qg3 Qf5 Qg5 Qxg5 fxg5 Ra7 Bxh5 Ba2 Bf3 Bc4 g3 Rd7 h4 Rc7 Kh2 Rb7 Kg2 a5 Rd1
19/55  00:13  94783865 7091415  +0.91 Bd1 Bb1 g4 hxg4 hxg4 a5 a3 Qa7 Be2 Ba2 Bxb5 Reb8 Bc6 Rxb2 Bxa8 Qxa8 Rd1 Bb3 Rd4 Qh8 Qh3 Qe8 f5 Qd7 fxg6 Rb1+ Kf2 fxg6
20/55+ 00:19 149411501 7746746  +1.00 Bd1 Bb1 g4 hxg4 hxg4 a5 a3 Qa7 Be2 Ba2 Bxb5 Reb8 Bc6 Rxb2 Bxa8 Qxa8 Rd1 Bb3 Rd4 Qh8 Qh3 Qe8 f5 Qd7 fxg6 Rb1+ Kf2 fxg6
20/55  00:28 236046985 8243591  +1.01 Bd1 h4 Qf2 e6 dxe6 Rxe6 Qxh4 Rae8 Rxe6 Rxe6 Rxe6 Bxe6 a3 Bd5 Qf2 f6 Bc2 Qc7 Qe2 a6 Kh2 Bf7 Qe3 Qc5 Qxc5 dxc5 Kg3 Bd5
21/55  00:31 258888408 8330010  +1.01 Bd1 h4 Qf2 e6 dxe6 Rxe6 Qxh4 Rae8 Rxe6 Rxe6 Rxe6 Bxe6 a3 Bd5 Qf2 f6 Bc2 Qc7 Qe2 a6 Kh2 Bf7 Qe3 Qc5 Qxc5 dxc5 Kg3 Bd5
22/55  00:38 326951233 8554230  +1.01 Bd1 h4 Qf2 e6 dxe6 Rxe6 Qxh4 Rae8 Rxe6 Rxe6 Rxe6 Bxe6 a3 Bd5 Qf2 f6 Bc2 Qc7 Kh2 Bc4 b3 Bf7 Qe3 Qc5 Qxc5 dxc5 Kg3 Bg8
23/55  00:44 390192401 8718603  +0.97 Bd1 h4 Qf2 e6 dxe6 Rxe6 Qxh4 Rae8 Rxe6 Rxe6 Rxe6 Qxe6 Bb3 Qe4 Qf2 a6 Qd2 Be6 Bxe6 Qxe6 b3 f6 Kh2 Qd7 Qd4 Qc7 c4 Qc5 Qxc5 dxc5 cxb5 axb5
24/55  01:06 608605122 9125745  +0.98 Bd1 h4 Qf2 e6 dxe6 Rxe6 Qxh4 Rae8 Rxe6 Rxe6 Bb3 d5 Rxe6 fxe6 Qf2 Kf7 Qc5 Qb7 Kh2 Qb8 g3 a6 Bd1 Bb1 a3 Be4 Qd4 Qc7

[biscuit1953]

It took Critter 19 seconds before it reached a score of +1.0 though. Crafty found the move quicker but not with the greater evaluation.

[elichrist]

I don't k know about this forum
PLs help

[User923005]

No sweat for Stockfish

Code: Select all

Analysis of Q:\rea.epd   
7/9/2012 2:20:42 PM Level: 180 Seconds
Analyzing engine: Stockfish Glinscott Pinned {3T}

 1                      
    Searching move: 
    Best move (Stockfish Glinscott Pinned {3T}): Bb3-d1
    Not found in: 03:00
     2/2	00:00	         615	0	+0.72	Qe2 Kf8
     3/3	00:00	         829	829,000	+0.80	Qe2 Kf8 Bc2
     4/4	00:00	       1,491	1,491,000	+0.96	Qe2 Kf8 Bc2 h4 Bxf5 gxf5
     5/5	00:00	       1,974	1,974,000	+0.96	Qe2 Kf8 Bc2 h4 Bxf5 gxf5
     6/6	00:00	       2,848	1,424,000	+0.96	Qe2 Kf8 Bc2 h4 Bxf5 gxf5
     7/8	00:00	       5,988	1,497,000	+0.80	Qe2 Kf8 Bc2 Bxc2 Qxc2 a5 c4 bxc4 Qxc4
     8/12	00:00	      10,764	1,537,714	+0.64	Qe2 Kf8 Bc2 Bxc2 Qxc2 a5 c4 bxc4 Qc3 Kg8 Qxc4 Qa7
     9/13	00:00	      66,282	2,008,545	+0.52	Qg3 a5 Bd1 Kh7 Qh4 f6 g4 Bb1 Bb3
    10/14	00:00	     105,406	2,242,680	+0.60	Qg3 Rab8 Bd1 Qb7 Bxh5 Qxd5 a4 Qc4 Rxe7 Rxe7 Rxe7 bxa4
    11/16	00:00	     231,720	2,758,571	+0.56	Qg3 Rab8 Qh4 f6 Qf2 a6 Bc2 Bxc2 Qxc2 Qa7 f5 g5
    12/16	00:00	     287,476	2,903,797	+0.56	Qg3 Rab8 Qh4 f6 Qf2 a6 Bc2 Bxc2 Qxc2 Qa7 f5 g5
    13/21	00:00	     785,021	3,428,039	+0.72	Bd1 Bb1 a3 a6 Qg3 Qf5 Rxe7 Rxe7 Rxe7 Be4 Qe3 Qxd5 Qxe4 Qxd1+ Kf2 Qd2+ Kf3
    14/23	00:00	   1,698,744	3,676,935	+0.96	Bd1 Bb1 a3 Rac8 Qg3 Qf5 Rxe7 Rxe7 Rxe7 Qxd5 Qe1 a6 Bf3 Qc5+ Kh1 Bf5 Bb7 Rc7 Bxa6
    15/23	00:00	   2,081,811	3,671,624	+0.96	Bd1 Bb1 a3 Rac8 Qg3 Qf5 Rxe7 Rxe7 Rxe7 Ba2 Qe3 a6 g4 Qxd5 Bf3 Qc4 gxh5
    16/25	00:00	   3,680,509	3,751,793	+0.80	Bd1 Bb1 a3 Rac8 Qe2 Rc7 a4 a6 Qd2 Bf5 Qd4+ Kg8 Qb6 Ra7 Qc6 e6 Bb3 Qxc6 dxc6 Rc7 axb5 axb5
    17/25	00:01	   4,112,695	3,776,579	+0.80	Bd1 Bb1 a3 Rac8 Qe2 Rc7 a4 a6 Qd2 Bf5 Qd4+ Kg8 Qb6 Ra7 Qc6 e6 Bb3 Qxc6 dxc6 Rc7 axb5 axb5
    18/27	00:02	   9,533,776	3,897,700	+0.88	Bd1 a5 g4 hxg4 hxg4 Bb1 Bb3 a4 Rxb1 axb3 axb3 Ra2 Kg2 Rh8 f5 gxf5 gxf5 Rg8 Qe4 Kf8+ Rg3 Rxg3+ Kxg3
    19/27	00:02	  10,299,188	3,904,165	+0.88	Bd1 a5 g4 hxg4 hxg4 Bb1 Bb3 a4 Rxb1 axb3 axb3 Ra2 Kg2 Rh8 f5 gxf5 gxf5 Rg8 Qe4 Kf8+ Rg3 Rxg3+ Kxg3
    20/31+	00:03	  12,177,410	3,939,634	+0.96	Bd1 a5 g4 hxg4 hxg4 Bb1 Bb3 a4 Rxb1 axb3 axb3 Ra2 Kg2 Rh8 Re2 Rh4 f5 gxf5 gxf5
    20/31+	00:03	  13,970,217	3,963,182	+1.05	Bd1 Bb1 a3 a6 Qg3 Qf5 Qf2 Ba2 b3 Qb1 f5 Bxb3 Bxb3 Qxb3 fxg6 Kxg6 Rg3+
    20/31	00:06	  24,029,402	3,896,449	+1.13	Bd1 a5 g4 hxg4 hxg4 Bb1 f5 gxf5 Qg3 f4 Qxf4 Bg6 Qd4+ Kg8 Rh3 f6 a4 b4 cxb4 axb4 Qxb4 Kg7 Qc3 Rh8 Ree3 Rxh3 Rxh3
    21/35+	00:08	  34,144,717	3,945,997	+1.21	Bd1 a5 g4 hxg4 hxg4 Bb1 f5 gxf5 Qg3 f4 Qxf4 Bg6 Qd4+ f6 g5 Kg8 gxf6 exf6 Qxf6 Rxe3 Rxe3
    21/35+	00:09	  38,851,864	3,968,120	+1.29	Bd1 f6 Qe2 a6 Rxe7+ Rxe7 Qxe7+ Qxe7 Rxe7+ Kh6 Bf3
    21/36-	00:12	  50,568,336	4,011,768	+1.05	Bd1 e5 fxe5 Rxe5 Rxe5 dxe5 Rxe5 Qd6 Re1 Rd8 g4 hxg4 hxg4 Bd7 Qf2 Rh8 Bf3 a5
    21/36	00:12	  52,089,723	4,013,384	+1.29	Bd1 e5 fxe5 Rxe5 Rxe5 dxe5 Rxe5 Qd6 Re1 Rd8 Bb3 a5 a3 a4 Ba2 Kg8 Qf2 Bd3 Qe3 Bf5 Qe7 Kg7 Qxd6 Rxd6 Kf2 Kf6
    22/36	00:13	  56,120,978	4,025,317	+1.29	Bd1 e5 fxe5 Rxe5 Rxe5 dxe5 Rxe5 Qd6 Re1 Rd8 Bb3 a5 a3 a4 Ba2 Kg8 Qf2 Bd3 Qe3 Bf5 Qe7 Kg7 Qxd6 Rxd6 Kf2 Kf6 c4
    23/36-	00:16	  65,272,692	4,031,667	+1.21	Bd1 e5 fxe5 Rxe5 Rxe5 dxe5 Rxe5 Qd6 Re1 Rd8 Bb3 a5 c4 a4 Qc3+ Qf6
    23/37+	00:27	 112,363,653	4,054,107	+1.37	Bd1 e5 dxe6 fxe6 g4 hxg4 hxg4
    23/37	00:30	 123,436,153	4,051,869	+1.37	Bd1 e5 dxe6 Bxe6 Bc2 h4 Qf2 Rh8 f5 gxf5 Qf4 Rh6 Rd1 Rd8 Red3 d5 Rf3 Kh7 Qg5 Rg8 Bxf5+ Bxf5 Qxf5+ Qxf5 Rxf5 Rhg6 Rh5+ Kg7 Rhxd5
    24/37	00:31	 129,413,094	4,049,981	+1.37	Bd1 e5 dxe6 Bxe6 Bc2 h4 Qf2 Rh8 f5 gxf5 Qf4 Rh6 Rd1 Rd8 Red3 d5 Rf3 Kh7 Qg5 Rg8 Bxf5+ Bxf5 Qxf5+ Qxf5 Rxf5 Rhg6 Rh5+ Kg7 Rhxd5
    25/39-	00:38	 158,381,687	4,065,551	+1.29	Bd1 h4 Qf2 e6 Qxh4 exd5 Re7 Rxe7 Rxe7 Qc8 Qf2 Qc5 Bf3 Be6
    25/39-	00:40	 164,650,109	4,073,783	+1.21	Bd1 h4 Qf2 e6 Qxh4 exd5 Bf3 Rxe3 Rxe3 Be4 Bxe4 dxe4 Rxe4 Qf5
    25/42+	00:44	 180,096,325	4,088,916	+1.45	Bd1 h4 Qf2 e6 Bf3 exd5 Bxd5 Rxe3 Qxe3 Rf8 Qd4+ f6 Qe3 Qc7 Qe7+ Qxe7 Rxe7+ Kh6 Rxa7 Re8 Rf7 Re2 b4 Rd2 Bc6 Rxa2 Rxf6
    25/42	00:47	 192,290,050	4,086,495	+1.45	Bd1 h4 Qf2 e6 Bf3 exd5 Bxd5 Rxe3 Qxe3 Rf8 Qd4+ f6 Qe3 a6 Qb6 Re8 Rxe8 Qxe8 Kf2 Be6 Qxd6 Bxd5 Qxd5 Qf7 Qxf7+ Kxf7 Kf3 g5 Kg4 Kg6 fxg5 fxg5
    26/42-	00:49	 201,721,403	4,091,380	+1.37	Bd1 h4 Qf2 e6 Bf3 exd5 Bxd5 Rxe3 Qxe3 Rh8 Qe7 a5 Kf2 Rh5 Bb3 Rh8 Qxd7 Bxd7 Re7 Be8 Ra7 a4 Bd5 Kf6 Ke3 Rh5 Kd4 Rf5 Ke4 Rh5
    26/42-	00:50	 205,020,189	4,093,118	+1.29	Bd1 h4 Qf2 e6 dxe6 Rxe6 Qxh4 Rae8 Rxe6 Bxe6 a4 a5 Qf2 Rb8 Qd4+ Kg8 Bc2 bxa4 Bxa4 Qb7 Re2 Qc7 Kf2 Rb6 b3 Qb7 c4
    26/42	01:00	 249,593,456	4,102,523	+1.41	Bd1 h4 Qf2 e6 Bf3 exd5 Bxd5 Rxe3 Qxe3 Rf8 Qd4+ f6 Qe3 a6 Qb6 Re8 Rxe8 Qxe8 Kf2 Be6 Qxd6 Bxd5 Qxd5 Qf7 Qxf7+ Kxf7 Kf3 g5 fxg5 fxg5 Ke4 Ke6 b3 Kd6 c4
    27/42	01:14	 305,704,834	4,100,173	+1.41	Bd1 h4 Qf2 e6 Bf3 exd5 Bxd5 Rxe3 Qxe3
    28/44+	02:03	 506,709,270	4,107,532	+1.49	Bd1 h4 Qf2 e6 Bf3 exd5 Bxd5 Rxe3 Qxe3 Rh8 Qd4+ f6 Qe3 Rh7 Bc6 Qxc6 Qe7+ Kh6 Qf8+
    28/44	02:14	 550,265,858	4,101,014	+1.45	Bd1 h4 Qf2 e6 Bf3 exd5 Bxd5 Rxe3 Qxe3 Rh8 Qd4+ f6 Qe3 a5 Qb6 Re8 Rxe8 Qxe8 Kf2 Bd3 Qc7+ Kh6 Bf3 Qe6 Qxa5 Qc4 Qb4 Qxa2 Ke3 Bf5 Qxb5
    29/44	02:28	 606,975,124	4,099,106	+1.45	Bd1 h4 Qf2 e6 Bf3 exd5 Bxd5 Rxe3 Qxe3 Rh8 Qd4+ f6 Qe3 a5 Qb6 Re8 Rxe8 Qxe8 Kf2 Bd3 Qc7+ Kh6 Bf3 Qe6 Qxa5 Qc4 Qb4 Qxa2 Ke3 Bf5 Qxb5
   7/9/2012 2:23:45 PM, Time for this analysis: 00:03:00, Rated time: 03:00

0 of 1 matching moves
7/9/2012 2:23:45 PM, Total time: 12:03:03 AM
Rated time: 03:00 = 180 Seconds