Author: Johan Havegheer
Date: 08:06:30 03/31/04
Go up one level in this thread
On March 31, 2004 at 06:31:28, Tord Romstad wrote: >I just completed a 100-game blitz match between Gothmog 0.4.7 and Crafty 19.9 >(yes, I know it is not the most recent version). In one of the games, the >following position arised: > >[D]r2qr3/4bpkp/p2p2pN/1p1P4/2pNP3/1b5P/1P1Q1PP1/R3R1K1 w - - > >Here, Gothmog surprised me (and Crafty) by playing the knight sac Nxf7!?. It >plays this after only 7 plies and 1 second, almost certainly as a speculative >sac, but still keeps it with a +1 score after 20 minutes and 16 plies. In >the game, Gothmog quickly got a winning attack after 24. Nxf7 Kxf7 25. Ne6 Qc8 >26. Qh6 Bf8 27. Qxh7+ Kf6 28. Re3. > >Which other engines like Nxf7? Is the sac correct? > Let's see what i have : AMD XP2800+ @2.15Ghz r2qr3/4bpkp/p2p2pN/1p1P4/2pNP3/1b5P/1P1Q1PP1/R3R1K1 w - - 0 1 Analysis by The King 3.23S: ² (0.31) 1.Pg4 Lg5 2.f4 00:00:00 ² (0.45) 1.Pxb3 cxb3 2.Pg4 Lg5 3.Dc3+ f6 4.Dxb3 00:00:00 ² (0.35) 1.Pxb3 Lg5 2.Dc3+ Kxh6 3.Pd4 Df6 00:00:00 ± (0.73) 1.Pg4 Lg5 2.Dc3 Lf6 3.Pxf6 Dxf6 00:00:00 ± (0.73) 1.Pg4 Lg5 2.Dc3 Lf6 3.Pxf6 Dxf6 00:00:00 ± (0.90) 1.Pg4 Lg5 2.Dc3 Lf6 3.Pxf6 Dxf6 4.Dd2 00:00:00 ² (0.57) 1.Pg4 Lg5 2.Dc3 Lf6 3.Pxf6 Dxf6 4.Te2 h6 00:00:00 ± (0.74) 1.Pxf7 Kxf7 2.Pe6 Dd7 3.Dh6 Tg8 4.Dxh7+ Kf6 5.Txa6 Txa6 6.Dxg8 00:00:01 ± (1.05) 1.Pxf7 Kxf7 2.Pe6 Db6 3.Dh6 Tec8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Dg4 Lf6 7.Pc5+ Kc7 00:00:02 ± (1.08) 1.Pxf7 Kxf7 2.Pe6 Db6 3.Dh6 Tec8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Tac1 Th8 7.Te3 Tae8 8.Pg7 00:00:04 ± (1.16) 1.Pxf7 Kxf7 2.Pe6 Db6 3.Dh6 Tec8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Df5 Tg8 7.Pc5+ Ke8 8.Dd7+ Kf8 9.Pe6+ Kf7 10.Te3 00:00:10 ± (1.35) 1.Pxf7 Kxf7 2.Pe6 Db6 3.Dh6 Tec8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Df5 Tg8 7.Pc5+ Ke8 8.Dd7+ Kf8 9.Pe6+ Kf7 10.Te3 Tae8 11.Tf3+ Kg6 00:00:31 +- (1.45) 1.Pxf7 Kxf7 2.Pe6 Db6 3.Dh6 Tec8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Df5 Th8 7.e5 Ke8 8.exd6 Dxd6 9.Ta3 Kd7 10.Pc5+ Ke8 00:01:11 +- (1.55) 1.Pxf7 Kxf7 2.Pe6 Db6 3.Dh6 Tec8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Dg4 Lf6 7.Te3 c3 8.Pf8+ Kc7 9.Dd7+ Kb8 10.Df7 Ta7 11.Dxf6 cxb2 12.Dxb2 Lxd5 13.exd5 Txf8 00:02:18 Analysis by Chess Tiger 15.0: µ (-0.96) 1.Df4 00:00:00 ³ (-0.50) 1.Pxb3 00:00:00 = (-0.24) 1.Pxb3 cxb3 00:00:00 = (-0.24) 1.Pxb3 cxb3 00:00:00 ³ (-0.52) 1.Pxb3 cxb3 2.Pg4 00:00:00 ³ (-0.36) 1.Pxb3 cxb3 2.Pg4 Lf6 3.Pxf6 Dxf6 00:00:00 ³ (-0.36) 1.Pxb3 cxb3 2.Pg4 Lf6 3.Pxf6 Dxf6 00:00:00 ³ (-0.32) 1.Pxb3 cxb3 2.Pg4 h5 3.Dc3+ Kh7 4.Pe3 00:00:00 = (-0.24) 1.Pxb3 cxb3 2.Pg4 Lf6 3.Ta3 Kg8 4.Pxf6+ Dxf6 5.Txb3 00:00:00 ³ (-0.30) 1.Pxb3 cxb3 2.Pg4 h5 3.Dc3+ Kh7 4.Ph2 a5 5.Dxb3 00:00:00 ³ (-0.32) 1.Pxb3 cxb3 2.Pg4 Lf6 3.Ta3 Lg5 4.Dc3+ Kg8 5.Txb3 Tc8 00:00:00 ³ (-0.28) 1.Pxf7 Kxf7 2.Pe6 Db6 3.Dh6 Teb8 4.Dxh7+ Ke8 5.e5 dxe5 6.Txe5 00:00:00 ³ (-0.32) 1.Pxb3 cxb3 2.Pg4 Lf6 3.Ta3 Lg5 4.Dc3+ Kg8 5.Txb3 Tc8 6.Df3 00:00:00 ³ (-0.58) 1.Pxb3 Lg5 2.Dc3+ Kxh6 3.Pd4 Lf6 4.f3 Kg7 5.Ta5 00:00:00 ³ (-0.40) 1.Pg4 Lg5 2.Dc3 Lf6 3.Pxf6 Dxf6 4.Ta5 De5 5.f3 f6 6.Pxb3 Dxc3 7.bxc3 cxb3 00:00:01 = (-0.12) 1.Pg4 Lg5 2.Dc3 Lf6 3.Pxf6 Dxf6 4.Te3 De5 5.Pxb3 Dxc3 6.Txc3 cxb3 7.f3 00:00:02 = (-0.08) 1.Pg4 Lg5 2.Dc3 Lf6 3.Pxf6 Dxf6 4.Te3 De5 5.Pxb3 cxb3 6.Dxb3 Kg8 7.Dc3 Df4 8.De1 00:00:04 = (-0.04) 1.Pxf7 Kxf7 2.Pe6 Db8 3.Dh6 Tc8 4.Dxh7+ Ke8 5.Pd4 a5 6.Dxg6+ Kd7 7.De6+ Ke8 8.Pxb3 00:00:05 = (0.20) 1.Pxf7 Kxf7 2.Pe6 Db8 3.Dh6 Tc8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Pd4 Db7 7.De6+ Kd8 8.Pc6+ Txc6 9.dxc6 00:00:09 = (0.20) 1.Pxf7 Kxf7 2.Pe6 Db8 3.Dh6 Tc8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Pd4 Db7 7.De6+ Kd8 8.Pc6+ 00:00:14 ² (0.56) 1.Pxf7 Kxf7 2.Pe6 Db6 3.Dh6 Tec8 4.Dxh7+ Ke8 5.Dxg6+ Kd7 6.Df5 a5 7.e5 Ta7 8.Pc5+ Kd8 9.Pxb3 cxb3 00:00:50 (Havegheer, Diksmuide 31.03.2004) Best
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