Author: Uri Blass
Date: 16:29:17 03/10/04
Go up one level in this thread
On March 10, 2004 at 19:05:08, Jorge Pichard wrote:
>On March 10, 2004 at 18:25:11, Jorge Pichard wrote:
>
>White to play and win, but it is NOT that easy for Amateur programs that do not
>use Nalimov or Tablebases.
>
>Some people the first thing that they will do is to let their engines analyze
>the position, and if the score get up to plus 2.03, like in move 53.Ke1 {2.03/11
>4}up to 57.Kd1 {2.10/11 10},and maintain that score for over 1 minute they will
>think that it is an automatic win. Well to let an engine analyze a position and
>to let two engines play the same position are two different animal. Here I was
>looking at the score of Movei jumping from 2.03 to plus 2.10 in an actual game
>against an unknown program Greko which play the endgame very decent without
>using Tablebases.
I do not think that movei is strong at endgames
It seems that it blundered when it played 84.f6 because it did not search deep
enough(score dropped after that move and movei can avoid that move with more
time).
nalimov probably knows better but it is clear that after f6 it is a draw when
before f6 yace can see a big advantage for white.
Movei00_8_178 - GreKo
8/4R3/8/5P2/5kP1/8/2r5/4K3 w - - 0 1
Analysis by Yace Paderborn:
84.f6 Rc6 85.g5 Kxg5
= (0.00) Depth: 1 00:00:00
84.Rg7
+- (2.20) Depth: 1 00:00:00
84.Re2
+- (2.41) Depth: 1 00:00:00
84.Re2
+- (2.41) Depth: 1 00:00:00
84.Re2 Rc1+ 85.Kd2
+- (2.54) Depth: 2 00:00:00
84.Re2 Rc1+ 85.Kd2
+- (2.54) Depth: 2 00:00:00
84.Re2 Rc7 85.Rg2
+- (2.54) Depth: 3 00:00:00
84.Re2 Rc7 85.Rg2
+- (2.54) Depth: 3 00:00:00
84.Re2 Rc1+ 85.Kd2 Rg1 86.f6 Rxg4
+- (1.52) Depth: 4 00:00:00
84.Re2 Rc1+ 85.Kd2 Rg1 86.f6
+- (1.49) Depth: 4 00:00:00
84.Rg7 Rf2
+- (2.08) Depth: 4 00:00:00
84.Rg7 Ke5 85.Rd7 Kf6
+- (2.23) Depth: 4 00:00:00
84.Rg7 Ke5 85.Rd7 Kf6
+- (2.23) Depth: 4 00:00:00
84.Rg7 Ke5 85.Rd7 Rg2 86.Re7+ Kf6
+- (2.25) Depth: 5 00:00:00
84.Kd1 Rc3 85.Rg7 Rd3+ 86.Kc2 Ke5
+- (2.27) Depth: 5 00:00:00
84.Kd1 Ra2 85.Rg7 Rf2 86.f6
+- (2.31) Depth: 5 00:00:00
84.Kd1 Ra2 85.Rg7 Rf2 86.f6
+- (2.31) Depth: 5 00:00:00
84.Kd1 Ra2 85.Rg7 Ke5 86.Rd7 Kf6
+- (2.25) Depth: 6/10 00:00:00 9kN
84.Kd1 Ra2 85.Rg7 Ke5 86.Rd7 Kf6
+- (2.25) Depth: 6/12 00:00:00 10kN
84.Kd1 Ra2 85.Rg7 Ke5 86.Rd7 Rf2 87.Rd8
+- (2.32) Depth: 7/12 00:00:00 19kN
84.Kd1 Ra2 85.Rg7 Ke5 86.Rd7 Rf2 87.Rd8
+- (2.32) Depth: 7/16 00:00:00 31kN
84.Kd1 Rg2 85.Rg7 Ke5 86.Ke1 Kd5 87.g5 Rf2
+- (2.32) Depth: 8/16 00:00:00 53kN
84.Kd1 Rg2 85.Rg7 Ke5 86.Ke1 Kd5 87.g5 Rf2
+- (2.32) Depth: 8/16 00:00:00 71kN
84.Kd1 Rf2 85.Re2 Rf1+ 86.Re1 Rf2 87.Rg1 Ke5 88.Ke1 Rc2
+- (2.33) Depth: 9/16 00:00:01 137kN
84.Kd1 Rf2 85.Re2 Rf1+ 86.Re1 Rf2 87.Rg1 Ke5 88.Ke1 Rc2
+- (2.33) Depth: 9/20 00:00:01 159kN
84.Kd1 Rf2 85.Re2 Rf1+ 86.Re1 Rf2 87.Rg1 Ra2 88.Ke1 Ra1+ 89.Kf2 Ra2+ 90.Kf1
+- (2.32) Depth: 10/20 00:00:01 212kN
84.Kd1 Rf2 85.Re2 Rf1+ 86.Re1 Rf2 87.Rg1 Ra2 88.Ke1 Ra1+ 89.Kf2 Ra2+ 90.Kf1
+- (2.32) Depth: 10/20 00:00:02 252kN
84.Kd1 Rf2 85.Rg7 Ke5 86.Rg6 Rf1+ 87.Kc2 Rf2+ 88.Kc3 Rf4 89.Kd3 Rd4+ 90.Kc2 Rc4+
91.Kd2 Rd4+ 92.Ke3 Re4+ 93.Kf3
+- (2.36) Depth: 11/20 00:00:03 423kN
84.Kd1 Rf2 85.Rg7 Ke5 86.Rg6 Rf1+ 87.Kc2 Rf2+ 88.Kc3 Rf4 89.Kd3 Rd4+ 90.Kc2 Rc4+
91.Kd2 Rd4+ 92.Ke3 Re4+ 93.Kf3
+- (2.36) Depth: 11/24 00:00:04 526kN
84.Kd1 Rg2 85.Rg7 Ke5 86.Kc1
+- (2.37) Depth: 12/24 00:00:06 919kN
84.Rg7 Ke3 85.Kd1 Rd2+ 86.Kc1 Rf2 87.Rg6 Kd4 88.f6 Kc3 89.Kd1 Rc2
+- (2.38) Depth: 12/26 00:00:07 1444kN
84.Rg7 Ke3 85.Kd1 Rd2+ 86.Kc1 Rf2 87.Rg6 Kd4 88.Rg7
+- (2.38) Depth: 12/26 00:00:07 1459kN
84.Rg7 Ke3 85.Kd1 Rd2+ 86.Kc1 Rf2 87.Rg6 Kd4 88.Rg7
+- (2.38) Depth: 12/26 00:00:08 1576kN
84.Rg7 Ke3 85.Kd1 Rd2+ 86.Kc1 Rf2 87.Rg6 Kd4 88.f6 Ke5 89.g5 Kf5 90.Rg7 Ke6
+- (2.53) Depth: 13/29 00:00:14 3020kN
84.Rg7 Ke3 85.Kd1 Rd2+ 86.Kc1 Rf2 87.Rg6 Kd4 88.f6 Ke5 89.g5 Kf5 90.Rg7 Ke6
+- (2.53) Depth: 13/29 00:00:16 3268kN
84.Rg7 Ke3 85.Kd1 Rd2+ 86.Kc1 Rf2 87.Rg6 Kd4 88.f6 Ke5 89.g5 Ke6 90.Rg7 Kf5
91.f7 Ke5
+- (2.59) Depth: 14/31 00:00:21 5692kN
84.Rg7 Ke3 85.Kd1 Rd2+ 86.Kc1 Rf2 87.Rg6 Kd4 88.f6 Ke5 89.g5 Ke6 90.Rg7 Kf5
91.f7 Ke5
+- (2.59) Depth: 14/31 00:00:24 6309kN
84.Rg7 Ke3 85.Kd1 Rf2 86.Rg6 Rg2 87.g5 Kd3 88.Kc1 Kc3 89.Kb1 Rb2+ 90.Ka1 Rf2
91.Rc6+ Kd4 92.f6 Ke5 93.Rc5+ Ke6
+- (2.56) Depth: 15/31 00:00:36 9978kN
84.Rg7 Ke3 85.Kd1 Rf2 86.Rg6 Rg2 87.g5 Kd3 88.Kc1 Kc3 89.Kb1 Rb2+ 90.Ka1 Rf2
91.Rc6+ Kd4 92.f6 Ke5 93.Rc5+ Ke6
+- (2.56) Depth: 15/33 00:00:50 13334kN
84.Rg7 Ke3 85.Kd1 Rd2+ 86.Kc1 Rf2 87.Rg8 Kd3
+- (2.54) Depth: 16/33 00:00:57 16749kN
84.Kd1 Rf2 85.Rg7 Ke3 86.Rg6 Ke4 87.Ke1 Rc2 88.f6 Kf4
+- (2.55) Depth: 16/34 00:01:01 18428kN
84.Kd1 Rf2 85.Rg7 Ke3 86.Rg6 Ke4 87.Ke1 Rc2 88.f6 Kf4
+- (2.55) Depth: 16/34 00:01:02 18909kN
84.Kd1 Rf2 85.Rg7 Ke3 86.Rg6 Ke4 87.Ke1 Rc2 88.f6 Kf4
+- (2.55) Depth: 16/34 00:01:08 21018kN
84.Kd1 Rf2 85.Rg7 Ke3 86.Rg6 Kd3 87.Rd6+ Ke4 88.Re6+ Kd5 89.Rg6 Ke5
+- (2.55) Depth: 17/35 00:01:28 29513kN
84.Kd1 Rf2 85.Rg7 Ke3 86.Rg6 Kd3 87.Rd6+ Ke4 88.Re6+ Kd5 89.Rg6 Ke5
+- (2.55) Depth: 17/35 00:01:43 33676kN
84.Kd1 Rf2 85.Rg7 Ke3 86.Rg6 Kd3 87.Rd6+ Ke4 88.Re6+ Kd5 89.Rg6 Ke5 90.Ke1 Rh2
91.f6 Rh7 92.g5 Ke6 93.Rg8 Rh1+ 94.Kd2 Kf7 95.Rd8 Rh2+ 96.Kc3 Rh3+ 97.Kc4 Rh4+
98.Kb5 Rc4
+- (2.58) Depth: 18/37 00:02:12 49111kN
84.Kd1 Rf2 85.Rg7 Ke3 86.Rg6 Kd3 87.Rd6+ Ke4 88.Re6+ Kd5 89.Rg6 Ke5 90.Ke1 Rh2
91.f6 Rh7 92.g5 Ke6 93.Rg8 Rh1+ 94.Kd2 Kf7 95.Rd8 Rh2+ 96.Kc3 Rh3+ 97.Kc4 Rh4+
98.Kb5 Rc4
+- (2.58) Depth: 18/37 00:02:33 57305kN
84.Kd1 Rh2 85.Rg7 Ke5 86.Rg8 Rh1+ 87.Ke2 Rh2+ 88.Kf3 Rh3+ 89.Kg2 Rb3 90.Re8+ Kf4
91.f6 Rb2+ 92.Kh3 Kg5
+- (2.66) Depth: 19/39 00:04:12 103904kN
84.Rg7 Ke3 85.Kd1 Rf2 86.Rg6 Kd3 87.Kc1 Rg2 88.Rg8 Rc2+ 89.Kd1 Rd2+ 90.Ke1 Re2+
91.Kf1
+- (2.67) Depth: 19/39 00:04:44 119487kN
84.Rg7 Ke3 85.Kd1 Rf2 86.Rg6 Kd3 87.Kc1 Rg2 88.Rg8 Rc2+ 89.Kd1 Rd2+ 90.Ke1 Re2+
91.Kf1
+- (2.67) Depth: 19/39 00:04:47 121524kN
84.Rg7 Ke3 85.Kd1 Rf2 86.Rg6 Kd3 87.Kc1 Rg2 88.Rg8 Rc2+ 89.Kd1 Rd2+ 90.Ke1 Re2+
91.Kf1
+- (2.67) Depth: 19/39 00:05:15 130345kN
84.Rg7 Ke3 85.Kd1 Rf2 86.Rg6 Kd3 87.Kc1 Kc3 88.Rc6+ Kd4 89.f6 Kd5 90.Rb6 Ke5
91.g5
+- (2.70) Depth: 20/40 00:07:37 207601kN
Uri
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