Author: Uri Blass
Date: 12:26:22 04/09/04
Go up one level in this thread
On April 09, 2004 at 15:05:18, Dann Corbit wrote:
>On April 09, 2004 at 11:57:10, Eduard Nemeth wrote:
>
>>[Event "Wertungspartie, 3m + 0s"]
>>[Site "Großer Spielsaal"]
>>[Date "2004.04.09"]
>>[Round "?"]
>>[White "Me"]
>>[Black "Opponent"]
>>[Result "1-0"]
>>[ECO "C00"]
>>[WhiteElo "?"]
>>[BlackElo "?"]
>>[PlyCount "53"]
>>[TimeControl "180"]
>>
>>1. e4 {0} e6 {4} 2. Nf3 {0} d5 {2} 3. d3 {2} Nf6 {2} 4. Nbd2 {2} c5 {4} 5. Be2
>>{2} Nc6 {2} 6. c3 {1} Bd6 {4} 7. Qc2 {2} O-O {3} 8. O-O {1} e5 {6} 9. Re1 {3}
>>d4 {3} 10. c4 {2} Re8 {15} 11. a3 {2} h6 {5} 12. Nf1 {1} Be6 {5} 13. Bd2 {1} a6
>>{3} 14. Rac1 {1} Qc7 {3} 15. Ng3 {1} b5 {5} 16. b3 {2} Rab8 {4} 17. Rb1 {3}
>>bxc4 {3} 18. bxc4 {2} Rxb1 {8} 19. Rxb1 {0} Rb8 {1} 20. Bc1 {11} Rb6 {6} 21.
>>Rxb6 {3} Qxb6 {1} 22. Qb2 {
>>Hier will Shredder 704 Qxb2 spielen, mit Bewertung -0.71 1} Qxb2 {2} 23. Bxb2 {
>>Nach diesem Tausch nun aber nur noch -0.22 aus Sicht von Shredder 7.04. 0} Bc7 {
>>2} 24. Nd2 {6} Ba5 {2} 25. Nb3 {1} Bb6 {XXX offers a draw 3} 26. f3 {5} Kf8 {2}
>>27. Nf1 {...Und ich gewann im Zug 99 noch auf Zeit} 1-0
>>
>>Merkwürdige Analyse von Shredder 7.04:
>>
>>Me - Opponent:
>>
>>[D]6k1/5pp1/pqnbbn1p/2p1p3/2PpP3/P2P1NN1/1Q2BPPP/2B3K1 b - - 0 1
>>
>>
>>Analysis by Shredder 7.04:
>>
>>22...Dxb2 23.Lxb2 g6 24.Lc1 Kg7 25.Ld2 Sg8 26.Kf1 Kf6 27.Ld1 Ke7 28.Ke2 Kd7
>>29.Sh4 a5 30.Sf3
>>µ (-0.71) Tiefe: 16/31 00:02:20 21088kN
>>
>>(Nemeth, Privat 09.04.2004)
>>
>>-0.71 !! ??
>>
>>After Qeeen x Queen:
>>
>>Me - Opponent:
>>
>>[D]6k1/5pp1/p1nbbn1p/2p1p3/2PpP3/P2P1NN1/1B2BPPP/6K1 b - - 0 1
>>
>>
>>Analysis by Shredder 7.04:
>>
>>23...g6 24.h4 Kf8 25.Lc1 Sg8 26.h5 Ke7 27.Sh2 Kd7 28.Ld2 g5 29.Sg4 f6 30.Kf1
>>³ (-0.26) Tiefe: 14/27 00:00:56 7995kN
>>23...g6 24.h4 Kf8 25.Lc1 Kg7 26.Ld1 Se7 27.h5 Sxh5 28.Sxe5 Lxe5 29.Lxh5
>>= (-0.22) Tiefe: 15/28 00:01:48 15662kN
>>
>>(Nemeth, Privat 09.04.2004)
>>
>>Now only -0.22 (
>>
>>A BIG Difference or?
>
>A swing of 1/2 pawn is not unusual. If the chess engines always guessed right,
>they would never be in a position to fail low and lose the game.
It was not because of fail low but because of the fact that shredder use the
root position for it's evaluation.
Here is analysis by shredder7.04 after trading queens and it never see +0.7 for
black.
I can add that the fact that shredder searches 23...Nd5 first suggest a very
poor order of moves(at least in the first ply).
Me - Opponent
[D]6k1/5pp1/p1nbbn1p/2p1p3/2PpP3/P2P1NN1/1B2BPPP/6K1 b - - 0 1
Analysis by Shredder 7.04:
23...Nd5 24.exd5
+- (3.04) Depth: 1/2 00:00:00
23...Nd5 24.exd5
+- (5.34) Depth: 1/2 00:00:00
23...Nd5 24.exd5
+- (3.95) Depth: 1/2 00:00:00
23...g6
³ (-0.29) Depth: 1/2 00:00:00
23...g6
³ (-0.29) Depth: 1/2 00:00:00
23...g6 24.Kf1
= (0.02) Depth: 2/5 00:00:00
23...g6 24.h3
= (-0.03) Depth: 2/5 00:00:00
23...Ng4 24.h3
= (-0.05) Depth: 2/7 00:00:00
23...Ng4 24.h3
= (-0.05) Depth: 2/7 00:00:00
23...Ng4 24.h3 Bc8
= (0.22) Depth: 3/7 00:00:00
23...Ng4 24.h3 Nf6
² (0.27) Depth: 3/7 00:00:00
23...g6 24.h3 Kf8
= (0.10) Depth: 3/7 00:00:00
23...g6 24.h3 Kg7
= (0.02) Depth: 3/7 00:00:00
23...Kf8 24.h3 Ke7
= (-0.11) Depth: 3/7 00:00:00
23...Kf8 24.h3 Ke7
= (-0.11) Depth: 3/7 00:00:00
23...Kf8 24.h3 Ke7 25.Kf1
= (-0.24) Depth: 4/7 00:00:00
23...Kf8 24.h3 Ke7 25.Kf1 Nd7
= (-0.15) Depth: 5/9 00:00:00
23...Kf8 24.Nd2 Ke7 25.f3 g6 26.Kf2
= (-0.18) Depth: 6/11 00:00:00 8kN
23...Kf8 24.Nd2 Ke7 25.Nf5+ Bxf5 26.exf5 Bc7 27.f3 Kd6
= (-0.15) Depth: 7/14 00:00:00 21kN
23...g6 24.Nxd4 cxd4 25.h3 Bxc4 26.dxc4
= (-0.16) Depth: 7/14 00:00:00 30kN
23...g6 24.Bd1 Kf8 25.Kf1 Ke7 26.Ke2 Bg4
= (-0.17) Depth: 7/17 00:00:00 54kN
23...g6 24.Kf1 Nd7 25.Bd1 f5 26.Ba4 Ne7 27.Ke2
= (-0.21) Depth: 8/17 00:00:00 89kN
23...g6 24.Bd1 Nd7 25.Ba4 Ne7 26.Bxd7 Bxd7 27.Bc1 Kg7 28.Bg5
³ (-0.26) Depth: 9/17 00:00:01 199kN
23...g6 24.Nd2 Nd7 25.h4 f5 26.exf5 gxf5 27.h5
³ (-0.36) Depth: 10/20 00:00:02 444kN
23...g6 24.h4 Kf8 25.Bc1 Ng8 26.h5 Ke7 27.Nh4 Kf6 28.Bd2 Bd7
³ (-0.29) Depth: 11/23 00:00:04 1065kN
23...g6 24.h4 Kf8 25.Bc1 Ng8 26.h5 Ke7 27.Kf1 a5 28.Bd2 a4 29.Bd1
³ (-0.36) Depth: 12/24 00:00:09 2048kN
23...g6 24.h4 Kf8 25.Bc1 h5 26.Bh6+ Ke7 27.Bg5 Bd7 28.Kf1 a5 29.Ke1
³ (-0.30) Depth: 13/24 00:00:15 3602kN
23...g6 24.h4 Kf8 25.Kf1 Ke7 26.Bc1 Ng8 27.h5 Bc7 28.Bd1 Na7
³ (-0.31) Depth: 14/27 00:00:33 7335kN
23...g6 24.Kf1 Nd7 25.Bc1 Kg7 26.Bd1 Nb6 27.Ke2 f6 28.h3 h5 29.Bb3 Kf7
³ (-0.26) Depth: 15/29 00:02:08 28634kN
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