Author: David Dahlem
Date: 00:19:52 12/30/03
El Chinito 3.25 was winning in this game but seemed to have trouble with this
critical position, with large jumps in evaluation up and down. After 44. Bxc5,
Ktulu announced mate in 11 two moves later.
[D]R7/p1p1kp2/2p2p2/2Np1Pr1/1P6/P1P2b1r/KR2N2P/6b1 b - - 4 44
El Chinito 3.25 Analysis
7 00:01 -0.73 Bxh2 Nd4 Be5 Rxa7 Kd6 a4 Bd1
8 00:02 -1.25 Bxc5 bxc5 Rxh2 Nd4 Rxb2+ Kxb2 Bg4 Nxc6+ Kd7 Nb4 a5 c6+ Kd6
Rxa5
9 00:02 -1.25 Bxc5 bxc5 Rxh2 Nd4 Rxb2+ Kxb2 Bg4 Nxc6+ Kd7 Nb4 a5 c6+ Kd6
Rxa5
10 00:03 -1.29 Bxc5 bxc5 Rxh2 Nd4 Rxb2+ Kxb2 Be4 Rxa7 Kd7 a4 Bxf5 a5
11 00:06 -1.24 Bxc5 bxc5 Rxh2 Nd4 Rxb2+ Kxb2 Rg2+ Kc1 Be4 Nxc6+ Kd7 Nd4 a5
c6+
12 00:11 -1.24 Bxc5 bxc5 Rxh2 Nd4 Rxb2+ Kxb2 Rg2+ Kc1 Be4 Nxc6+ Kd7 Nd4 Rg3
c6+
13 01:25 1.96 Bxc5 bxc5 Rgh5 Ng1 Kd7 Nxh3 Rxh3 Rxa7 Be4 Kb3 Bxf5 a4 d4 Kc4
Does any other engine have problems avoiding 44. Bxc5?
Here is the complete game. On move 45, El Chinito's evaluation went to -1.67.
[Event "Ktulu Gauntlet 40/10"]
[Site "?"]
[Date "2003.12.30"]
[Round "1"]
[White "Ktulu 4.2"]
[Black "El Chinito 3.25"]
[Result "1-0"]
[TimeControl "40/600:40/600:40/600"]
1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Qe2 Qe7 {-0.30/11 12} 6.d3 {0.30/11 15}
Nf6 {-0.32/11 12} 7.Bg5 {0.25/10 10} Qxe2+ {-0.24/10 11} 8.Bxe2 {0.21/12 10} Nc6
{-0.26/10 11} 9.Nc3 {0.20/11 14} Be6 {-0.23/10 11} 10.Bxf6 {0.27/11 19} gxf6
{-0.31/10 4} 11.O-O-O {0.25/11 11} O-O-O {-0.33/11 13} 12.d4 {0.24/12 17} d5
{-0.33/10 12} 13.Bb5 {0.21/11 11} Bh6+ {-0.13/10 12} 14.Kb1 {0.21/12 13} Rhg8
{-0.15/11 12} 15.Bxc6 {0.29/12 9} bxc6 {0.00/11 12} 16.Ne1 {0.26/13 22} Rde8
{-0.28/11 12} 17.f3 {0.23/12 21} Bd7 {0.03/11 12} 18.g3 {0.15/12 17} Re3
{0.00/11 13} 19.Rf1 {0.13/12 12} Bh3 {0.00/11 12} 20.Rf2 {0.04/14 15} Rge8
{-0.11/12 12} 21.Nd3 {-0.02/14 30} R3e6 {-0.10/12 13} 22.f4 {0.07/12 13} Bg4
{0.01/11 13} 23.Rg1 {0.16/12 14} Bg7 {0.01/10 13} 24.f5 {0.27/12 14} R6e3
{0.08/11 13} 25.Rgf1 {0.22/12 26} h5 {0.23/10 13} 26.a3 {0.25/12 26} Bf8
{0.06/10 14} 27.Ka2 {0.23/12 15} Bd6 {0.11/10 13} 28.Rd2 {0.24/11 9} h4 {0.33/11
14} 29.gxh4 {-0.28/11 9} Rh3 {0.31/10 15} 30.Rg2 {-0.33/11 28} Rxh4 {0.72/11 14}
31.Rff2 {-0.50/11 11} Bh5 {0.58/11 14} 32.Rg7 {-0.46/12 17} Rxd4 {0.56/12 14}
33.Rh7 {-0.58/13 16} Rh4 {0.66/12 15} 34.Ne2 {-0.34/13 24} Rg8 {0.42/12 15}
35.Ng3 {-0.19/12 32} Rg5 {0.60/11 16} 36.Rh6 {-0.19/12 19} Be5 {0.77/10 16}
37.Nc5 {-0.12/11 14} Kd8 {0.53/12 18} 38.Rh8+ {-0.14/11 12} Ke7 {0.63/11 5}
39.b4 {-0.17/12 14} Rh3 {1.09/11 19} 40.Ra8 {-0.09/11 5} Bd4 {0.66/12 20} 41.Rg2
{-0.15/12 7} Be3 {0.58/12 22} 42.c3 {0.00/12 12} Bf3 {0.56/11 22} 43.Rb2
{-0.76/11 14} Bg1 {1.19/11 23} 44.Ne2 {-0.84/11 12} Bxc5 {1.24/12 45} 45.bxc5
{0.27/13 9} Rxh2 {-1.67/11 13} 46.Rbb8 {M11/14 77} Rxe2+ {-M10/13 13} 47.Kb3
Rb2+ {-M9/15 11} 48.Kxb2 Rg2+ {-M8/14 11} 49.Kc1 Rg1+ {-M7/14 11} 50.Kd2 Rg2+
{-M6/13 12} 51.Ke3 Re2+ {-M5/13 11} 52.Kxf3 Re3+ {-M4/12 11} 53.Kxe3 Kd7 {-M3/10
12} 54.Rxa7 d4+ {-M2/10 11} {Black resigns} 1-0
Regards
Dave
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