Author: K. Burcham
Date: 17:18:34 08/16/05
Shredder - Fruit, WCCC 13th Reykjavik 2005 [D] 6k1/5p2/2b1p1pp/4P3/1q6/8/1P3QPP/5BK1 w - - 0 1 After Fruit captures the pawn with 39…Qxb4, both sides are even on material In this position Fruit score is at -.55 for white. Shredder score is -.11 Many games have been lost by either side with a similar score. I was following this game using different programs to see if one would have different score than other. Most were about the same during the game. Lots of speculation during game who had advantage and at what move black actually had a win. If a GM looks at this position at move 40 and says it is a win for black if no blunders, than the programs do not reflect this confidence. Evals, how they work and what they mean, and the fact that a program can have a winning position and is going to win, but the eval will not show this----is very fascinating to me. Fruit 2.1 40.h3 Bd5 41.Bd3 Be4 42.Bf1 Bf5 43.g3 Be4 44.Kh2 g5 45.h4 Kf8 46.Bh3 Qc4 47.b4 gxh4 48.gxh4 Ke8 49.Qd2 Bd5 50.Kg3 Qc7 51.Qe3 f5 (-0.65) Depth: 23/56 00:08:00 633108kN 40.h3 Bd5 41.Bd3 Be4 42.Bf1 Bf5 43.g3 Be4 44.Kh2 h5 45.h4 Bd5 46.Qe2 Qb7 47.Kh3 Qc6 48.Qd2 Qa4 49.b4 Qa1 50.Qf4 Qb2 51.b5 Kg7 ³ (-0.65) Depth: 24/64 00:13:44 1075709kN 40.h3 Bb7 41.Kh2 Qe4 42.Qc5 Qb1 43.Qf2 Bd5 44.Qe2 h5 45.h4 Kg7 46.Qf2 Kf8 47.Qc5+ Kg8 48.Qf2 Bc6 49.g3 Kg7 50.Qe2 Bd5 51.Bg2 Qa2 52.Qc2 Qa6 53.Bxd5 exd5 ³ (-0.55) Depth: 25/68 02:03:13 893074kN Shredder 9 40.h3 Bd5 41.Bd3 Be4 42.Bf1 Bf5 43.g3 h5 44.Kh2 g5 45.Bg2 Kg7 46.Qf3 Qxb2 47.Qxh5 Qc1 48.Qf3 Qa1 49.Qh5 = (-0.11) Depth: 27/58 00:52:32 2209876kN, tb=57613 There is no capture of material until move 61…Qxe5. So Fruit could not gain material between move 40 and move 60. In this position Fruit captures another pawn with 61…Qxe5 Fruit advances pawns and it is all over. [D] 5k2/5p2/1P2p3/4P1p1/4b2p/7P/B4QPK/q7 b - - 0 61 kburcham
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