Author: Uri Blass
Date: 04:24:12 09/25/01
Go up one level in this thread
On September 25, 2001 at 06:59:26, Tony Werten wrote: >On September 25, 2001 at 06:47:41, Uri Blass wrote: > >>I find that Deep Fritz can get positional score of more than 26 pawns and Crafty >>can get a positional score of more than 37 pawns. > >It means that Crafty gives about 3.5 points bonus for a passed pawn when it >cannot be stopped by the opponent king and the opponent has no pieces anymore. Here is another interesting position note that Deep Fritz see advantage for white at small depth when Crafty understands even at depth 1 that black has decisive advantage New position [D]8/8/8/1K6/PPPPPPPP/1k2pppp/8/8 w - - 0 1 Analysis by Deep Fritz: 1.Kc5-- +- (2.94) Depth: 1/3 00:00:00 1.Kc5-- +- (2.94) Depth: 1/3 00:00:00 1.h5! +- (3.25) Depth: 1/3 00:00:00 1.h5! +- (6.03) Depth: 1/3 00:00:00 1.h5-- +- (3.59) Depth: 2/3 00:00:00 1.h5-- h2 +- (3.09) Depth: 2/3 00:00:00 1.c5! +- (5.00) Depth: 2/3 00:00:00 1.a5! +- (5.16) Depth: 2/3 00:00:00 1.a5-- +- (3.59) Depth: 3/3 00:00:00 1.a5-- h2 2.Kc5 h1Q -+ (-2.00) Depth: 3/5 00:00:00 1.c5! -+ (-1.81) Depth: 3/7 00:00:00 1.g5! -+ (-1.72) Depth: 3/7 00:00:00 1.g5 e2 2.h5 e1Q -+ (-1.72) Depth: 4/5 00:00:00 1.g5-- -+ (-2.03) Depth: 5/8 00:00:00 1.g5-- e2 2.Kc5 e1Q 3.Kd5 Kxb4 -+ (-3.87) Depth: 5/22 00:00:00 3kN 1.e5! -+ (-3.75) Depth: 5/22 00:00:00 3kN 1.c5! -+ (-3.69) Depth: 5/22 00:00:00 4kN 1.c5! e2 -+ (-3.44) Depth: 5/22 00:00:00 4kN 1.c5 e2 2.d5 e1Q 3.Kc6 Kxb4 -+ (-3.44) Depth: 6/14 00:00:00 7kN 1.c5-- -+ (-3.75) Depth: 7/18 00:00:00 11kN 1.c5-- f2 2.c6 f1Q+ 3.Kb6 e2 4.c7 e1Q 5.c8Q -+ (-6.44) Depth: 7/25 00:00:00 53kN 1.d5! -+ (-6.41) Depth: 7/25 00:00:00 110kN 1.d5! e2 2.d6 e1Q 3.d7 f2 -+ (-6.22) Depth: 7/25 00:00:00 115kN 1.d5-- -+ (-6.53) Depth: 8/24 00:00:00 141kN 1.d5-- -+ (-6.53) Depth: 8/24 00:00:00 144kN 1.c5! -+ (-6.50) Depth: 8/26 00:00:00 155kN 1.c5! f2 2.c6 f1Q+ 3.Kb6 e2 4.c7 e1Q -+ (-6.44) Depth: 8/26 00:00:00 160kN 1.c5-- -+ (-6.75) Depth: 9/24 00:00:00 196kN 1.c5-- f2 2.c6 f1Q+ 3.Kb6 e2 4.c7 e1Q 5.b5 Qxe4 6.c8Q -+ (-8.06) Depth: 9/30 00:00:00 274kN 1.d5! -+ (-8.03) Depth: 9/30 00:00:00 327kN 1.d5! e2 2.d6 e1Q 3.d7 Qxb4+ 4.Kc6 Qxc4+ 5.Kd6 Qxe4 6.f5 Qd4+ -+ (-7.06) Depth: 9/30 00:00:00 367kN 1.d5-- -+ (-7.37) Depth: 10/28 00:00:00 495kN 1.d5-- e2 2.d6 e1Q 3.d7 f2 4.d8Q f1Q 5.Qf8 Qxc4+ 6.Kb6 Qexb4+ -+ (-7.50) Depth: 10/31 00:00:01 550kN 1.d5-- -+ (-7.81) Depth: 11/26 00:00:01 887kN 1.d5-- f2 2.d6 f1Q 3.d7 e2 -+ (-10.59) Depth: 11/33 00:00:02 1698kN 1.Ka6! -+ (-10.56) Depth: 11/33 00:00:04 2917kN 1.Kb6! -+ (-10.53) Depth: 11/35 00:00:05 4039kN 1.Kb6! e2 2.a5 h2 3.a6 h1Q 4.a7 g2 5.a8Q g1Q -+ (-10.34) Depth: 11/35 00:00:06 4290kN 1.a5! -+ (-10.31) Depth: 11/35 00:00:07 5039kN 1.a5! f2 2.a6 f1Q 3.a7 Qxc4+ 4.Kb6 Qxd4+ 5.Ka6 Qxe4 6.Kb6 -+ (-10.03) Depth: 11/35 00:00:07 5245kN 1.a5 f2 2.a6 f1Q 3.a7 Qxc4+ 4.Kb6 Qxd4+ 5.Ka6 Qxe4 6.Kb6 -+ (-10.12) Depth: 12/31 00:00:08 5930kN 1.a5-- -+ (-10.44) Depth: 13/32 00:00:10 7382kN 1.a5-- f2 2.a6 f1Q 3.Kb6 Qxc4 4.b5 e2 5.a7 Qxd4+ 6.Kb7 e1Q -+ (-13.50) Depth: 13/37 00:00:15 10967kN 1.Kb6! -+ (-13.47) Depth: 13/37 00:00:20 15303kN 1.Kb6! f2 2.d5 e2 3.d6 e1Q 4.b5 f1Q 5.d7 Qd3 6.Ka6 Qexe4 -+ (-13.41) Depth: 13/37 00:00:27 21071kN (Blass, Tel-aviv 25.09.2001) New position 8/8/8/1K6/PPPPPPPP/1k2pppp/8/8 w - - 0 1 Analysis by Crafty 18.10: 1.Kc6 -+ (-10.12) Depth: 1/2 00:00:00 1.Kc6 Kxc4 -+ (-12.02) Depth: 2/2 00:00:00 1.c5 -+ (-11.62) Depth: 2/2 00:00:00 1.c5 e2 2.c6 -+ (-10.17) Depth: 2/2 00:00:00 1.c5 h2 2.c6 h1Q -+ (-15.84) Depth: 3/4 00:00:00 1.c5 h2 2.c6 h1Q -+ (-15.44) Depth: 4/6 00:00:00 1.c5 h2 2.c6 h1Q 3.Kb6 -+ (-15.08) Depth: 4/6 00:00:00 1.d5 e2 2.d6 e1Q 3.Kc6 -+ (-14.71) Depth: 4/6 00:00:00 1.d5 e2 2.d6 e1Q 3.e5 Qxb4+ 4.Kc6 -+ (-16.18) Depth: 5/8 00:00:00 1.d5 e2 2.d6 e1Q 3.Kc5 Qxb4+ 4.Kd4 Qd2+ 5.Ke5 -+ (-17.28) Depth: 6/10 00:00:00 35kN 1.Kc5 f2 2.h5 e2 3.h6 e1Q 4.h7 Qxb4+ 5.Kc6 -+ (-17.25) Depth: 6/10 00:00:00 84kN 1.Ka6 e2 2.b5 Kxc4 3.b6 e1Q 4.h5 -+ (-16.92) Depth: 6/10 00:00:00 118kN 1.Ka6 e2 2.b5 e1Q 3.b6 Qxe4 4.b7 Qc6+ 5.Ka7 Qxa4+ 6.Kb6 -+ (-18.51) Depth: 7/13 00:00:00 168kN 1.d5 e2 2.Kc6 e1Q 3.b5 Qxe4 4.c5 Qxf4 -+ (-18.48) Depth: 7/13 00:00:00 234kN 1.d5 e2 2.d6 e1Q 3.d7 Qxb4+ 4.Kc6 Qxc4+ 5.Kd6 Qb4+ 6.Kc7 Qa5+ 7.Kd6 Kxa4 -+ (-18.96) Depth: 8/16 00:00:00 326kN 1.c5 -+ (-18.56) Depth: 8/16 00:00:01 620kN 1.c5 e2 2.c6 e1Q 3.c7 Qxb4+ 4.Kc6 Qxa4+ 5.Kb7 Qb4+ 6.Kc6 Qc4+ 7.Kb7 Qb5+ 8.Ka7 -+ (-18.55) Depth: 8/16 00:00:02 715kN 1.c5 e2 2.Kb6 e1Q 3.b5 Qxe4 4.c6 Qxd4+ 5.Kb7 Qxa4 6.b6 -+ (-19.18) Depth: 9/19 00:00:03 1394kN (Blass, Tel-aviv 25.09.2001) Another position when Crafty's positional score of 7.01 at depth 1 is clearly wrong New position [D]3K4/8/8/PPP1PPPP/pppp1ppp/8/8/6k1 w - - 0 1 Analysis by Crafty 18.10: 1.a6 +- (7.01) Depth: 1/2 00:00:00 1.a6 f3 ³ (-0.48) Depth: 2/2 00:00:00 1.e6 = (-0.08) Depth: 2/2 00:00:00 1.e6 f3 = (0.00) Depth: 2/2 00:00:00 1.e6 d3 2.Kc7 = (0.18) Depth: 3/3 00:00:00 1.f6 ² (0.58) Depth: 3/3 00:00:00 1.f6 d3 2.Ke7 ² (0.64) Depth: 3/3 00:00:00 1.f6 d3 2.f7 d2 3.f8Q d1Q+ 4.Kc7 = (-0.22) Depth: 4/14 00:00:00 1.e6 a3 2.e7 a2 3.e8Q a1Q = (-0.09) Depth: 4/14 00:00:00 1.h6 d3 2.h7 d2 3.h8Q d1Q+ 4.Ke7 ² (0.27) Depth: 4/14 00:00:00 1.h6 d3 2.h7 d2 3.Ke7 h3 4.f6 = (0.14) Depth: 5/14 00:00:00 1.h6 d3 2.h7 d2 3.h8Q d1Q+ 4.Kc7 Qd5 5.Qxh4 Qxe5+ = (0.13) Depth: 6/18 00:00:00 19kN 1.h6 d3 2.Ke7 h3 3.h7 h2 4.h8Q h1Q 5.Qxh1+ Kxh1 = (-0.21) Depth: 7/18 00:00:00 58kN 1.g6 d3 2.Ke7 d2 3.g7 d1Q 4.g8Q c3 5.f6 = (-0.09) Depth: 7/18 00:00:00 117kN 1.g6 d3 2.g7 d2 3.g8Q d1Q+ 4.Ke8 g3 5.Qf7 Qd4 6.Qe7 -+ (-1.67) Depth: 8/22 00:00:00 186kN 1.h6 µ (-1.27) Depth: 8/22 00:00:00 221kN 1.h6 d3 2.h7 d2 3.h8Q d1Q+ 4.Ke7 Qd5 5.Kf6 h3 6.Qf8 µ (-0.87) Depth: 8/22 00:00:01 296kN 1.f6 d3 2.f7 d2 3.f8Q d1Q+ 4.Kc8 f3 5.Qd6 Qd3 6.b6 µ (-0.76) Depth: 8/22 00:00:01 420kN 1.f6 d3 2.f7 d2 3.f8Q d1Q+ 4.Qd6 Qxd6+ 5.exd6 a3 6.Ke7 a2 7.d7 f3 8.c6 a1Q 9.d8Q ³ (-0.48) Depth: 9/27 00:00:01 573kN 1.f6 d3 2.f7 d2 3.f8Q d1Q+ 4.Qd6 Qxd6+ 5.exd6 h3 6.b6 h2 7.b7 h1Q 8.b8Q b3 µ (-1.02) Depth: 10/27 00:00:04 1593kN 1.f6 d3 2.f7 d2 3.f8Q d1Q+ 4.Qd6 Qxd6+ 5.exd6 h3 6.b6 h2 7.b7 h1Q 8.b8Q b3 ³ (-0.62) Depth: 11/30 00:00:07 2743kN 1.f6 d3 2.f7 d2 3.f8Q d1Q+ 4.Qd6 Qxd6+ 5.exd6 a3 6.g6 a2 7.g7 a1Q 8.g8Q Qxa5+ 9.Ke7 Qa7+ 10.Ke6 Qxc5 11.Qxg4+ ³ (-0.61) Depth: 11/30 00:00:09 3253kN 1.f6 d3 2.f7 d2 3.f8Q d1Q+ 4.Qd6 Qxd6+ 5.exd6 h3 6.c6 h2 7.c7 h1Q 8.c8Q Qxh5 9.Qxc4 Qxg5+ 10.Kc7 µ (-0.79) Depth: 12/32 00:00:17 6088kN (Blass, Tel-aviv 25.09.2001) Uri
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