Author: Kurt Utzinger
Date: 12:55:31 05/11/03
Go up one level in this thread
You asked the wrong question, it should have been: which engine does_not_find the winning 1...bxc2. I have found not one single engine. This - for humans nice - combination is much too easy for chess programs. Below some analysis on P4 1.8/32 MB hash Kurt New game [D]r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by Amy 0.8.1: 1...Rxa5 2.Rxa5 bxc2 3.Rxe7+ Qxe7 4.Ra8+ Bc8 -+ (-2.11) Depth: 1 00:00:00 µ (-0.92) Depth: 5 00:00:01 1...bxc2 2.Na3 Rxa5 3.Rxe7+ Qxe7 4.Qxa5 d3 5.Qc3 Bf5 6.Nxc2 dxc2 = (0.00) Depth: 5 00:00:01 -+ (-3.61) Depth: 11 00:00:15 4532kN (Utzinger, MyTown 11.05.2003) New game r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by Amyan 1.54: 1...Rxa5 2.Rxa5 bxc2 3.Rxe7+ Qxe7 4.Ra8+ Bc8 -+ (-2.11) Depth: 1 00:00:00 µ (-0.92) Depth: 5 00:00:01 1...bxc2 2.Na3 Rxa5 3.Rxe7+ Qxe7 4.Qxa5 Ne4 = (0.00) Depth: 5 00:00:01 -+ (-3.40) Depth: 12 00:00:29 8774kN (Utzinger, MyTown 11.05.2003) New game r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by Anaconda 1.0: 1...Qc8 2.Rxe7+ Kf8 +- (5.48) Depth: 1/5 00:00:00 1...Qb8 2.Rxe7+ Kf8 = (-0.08) Depth: 1/5 00:00:00 +- (5.24) Depth: 1/5 00:00:00 1...bxc2 2.Bxd8 Rxa1 +- (2.82) Depth: 1/7 00:00:00 +- (2.82) Depth: 1/7 00:00:00 1...Rxa5 2.Rxa5 bxc2 3.Rxe7+ Kf8 4.Rxd7 Qxd7 ² (0.27) Depth: 1/9 00:00:00 µ (-1.29) Depth: 5/13 00:00:00 19kN 1...bxc2 2.b6 Rxa5 3.Raxa5 cxb1Q 4.Qxb1 Be6 5.Rab5 Bd6 6.Rg5 µ (-1.30) Depth: 5/13 00:00:00 33kN -+ (-4.39) Depth: 9/33 00:00:19 3721kN (Utzinger, MyTown 11.05.2003) New game r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by AnMon5.21: 1...Qxa5 2.Rxe7+ Kf8 3.Rxa5 Rxa5 -+ (-1.85) Depth: 1 00:00:00 +- (8.26) Depth: 1 00:00:00 1...Qb8 2.Rxe7+ Kf8 +- (1.71) Depth: 1 00:00:00 +- (1.71) Depth: 1 00:00:00 1...Rxa5 2.Rxa5 bxc2 3.Rxe7+ Kf8 4.Qb4 cxb1Q+ 5.Re1+ -+ (-1.94) Depth: 1 00:00:00 µ (-0.71) Depth: 4 00:00:00 1...bxc2 2.b6 Rxa5 3.Rexa5 cxb1Q 4.Rxb1 Bc6 5.Re5 µ (-0.72) Depth: 4 00:00:00 -+ (-4.11) Depth: 10 00:00:43 11725kN (Utzinger, MyTown 11.05.2003) New game r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by Aristarch 4.21: 1...bxc2 2.Bxd8 Rxa1 ² (0.42) Depth: 2/7 00:00:00 +- (1.92) Depth: 2/11 00:00:00 1...Rxa5 2.Rxa5 bxc2 3.Rxe7+ Kf8 4.Rxd7 Qxd7 +- (1.91) Depth: 2/11 00:00:00 -+ (-2.00) Depth: 5/13 00:00:00 1...bxc2 2.Na3 Rxa5 3.Rxe7+ Qxe7 4.Qxa5 d3 5.Qa8+ Qd8 6.Re1+ Be6 7.Qc6+ Kf8 8.Nxc2 dxc2 9.Qxc2 -+ (-2.01) Depth: 5/15 00:00:00 -+ (-4.27) Depth: 10/26 00:00:06 2310kN (Utzinger, MyTown 11.05.2003) New game r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by Comet B60: 1...bxc2 2.Bxd8 Rxa1 ± (0.88) Depth: 1/9 00:00:00 ± (0.88) Depth: 1/9 00:00:00 1...Rxa5 2.Rxa5 Bxb5 -+ (-2.68) Depth: 1/9 00:00:00 µ (-1.39) Depth: 3/13 00:00:00 1...Qb8 2.Rxe7+ Kf8 -+ (-2.30) Depth: 3/13 00:00:00 = (-0.17) Depth: 3/13 00:00:00 1...Rxa5 2.Rxa5 Bxb5 ³ (-0.48) Depth: 3/13 00:00:00 µ (-1.18) Depth: 5/19 00:00:00 58kN 1...bxc2 2.b4 Be6 3.Na3 Qc8 4.Qc1 d3 -+ (-1.89) Depth: 5/19 00:00:00 106kN -+ (-4.45) Depth: 9/24 00:00:05 2060kN (Utzinger, MyTown 11.05.2003) New game r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by Crafty 17.14: 1...bxc2 2.Bxd8 Rxa1 3.Rxe7+ Kxd8 ² (0.38) Depth: 1/2 00:00:00 ² (0.38) Depth: 1/2 00:00:00 1...Rxa5 2.Rxa5 bxc2 3.Rxe7+ Qxe7 4.Ra8+ Bc8 5.Rxc8+ = (-0.02) Depth: 1/2 00:00:00 µ (-1.37) Depth: 4/11 00:00:00 1...bxc2 2.b6 Ng4 3.b7 Nxe5 4.Bxd8 Rxd8 5.Nd2 Nd3 6.Qf1 Bf5 -+ (-1.77) Depth: 4/11 00:00:00 -+ (-4.58) Depth: 9/23 00:00:08 5189kN (Utzinger, MyTown 11.05.2003) New game r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by Doctor? 3.0: 1...bxc2 2.Bxd8 Rxa1 3.Rxe7+ Kxd8 ± (0.81) Depth: 1/7 00:00:00 ± (0.81) Depth: 1/7 00:00:00 1...Rxa5 2.Rxa5 bxc2 3.Rxe7+ Qxe7 4.Ra8+ Bc8 5.Rxc8+ Kd7 -+ (-2.27) Depth: 1/7 00:00:00 = (-0.18) Depth: 4/13 00:00:00 1...Ng4 2.Bxd8 Rxa1 3.Rxe7+ Kxd8 4.Rxf7 Bxb5 5.Rxg7 +- (4.04) Depth: 4/13 00:00:00 1...Be6 2.Bxd8 Rxa1 +- (2.67) Depth: 4/13 00:00:00 1...Qb8 2.Rxe7+ Kf8 +- (1.95) Depth: 4/13 00:00:00 1...Rxa5 2.Rxa5 bxc2 3.Rxe7+ Kf8 4.Rxd7 Nxd7 = (-0.18) Depth: 4/13 00:00:00 µ (-0.93) Depth: 4/13 00:00:00 1...bxc2 2.b4 Be6 3.Nd2 Qd7 4.Qf1 d3 5.Qc1 Rb8 -+ (-2.22) Depth: 4/13 00:00:00 -+ (-3.96) Depth: 18/24 00:00:08 952kN (Utzinger, MyTown 11.05.2003) New game r2qk2r/3bbppp/5n2/BP2R3/3p4/1p6/1PP2PPP/RN2Q1K1 b - - 0 1 Analysis by Fritz 8: 1...bxc2 2.Na3 Qxa5 3.Rxe7+ Kd8 4.Nxc2 Qxe1+ 5.Rexe1 Rxa1 6.Rxa1 d3 7.Nb4 d2 8.Rd1 Re8 9.Nc6+ -+ (-2.50) Depth: 7/21 00:00:00 142kN -+ (-3.13) Depth: 12/32 00:00:11 7319kN (Utzinger, MyTown 11.05.2003)
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