Author: Kurt Utzinger
Date: 23:27:58 02/12/05
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On February 12, 2005 at 22:33:35, Rick Hagen wrote: > >[D] 3R2nk/r5p1/6PP/3NK3/8/8/8/8 w - - 0 2 > >From the game Kramnik-Krasenkov (Wijk aan Zee 2003) >The obvious 1.h7 leads to a draw (perpetual check with rook) >Kramnik played Ne3 btw, and won. >Engines that see the draw after h7 rather fast are Goliath Light 1.5 >and Anaconda 1.0 >Most engines have difficulties seeing the "crazy rook" concept. >How does your engine(s) handle this? > >Rick Neue Partie, 120'/40+60'/20+30' 3R2nk/r5p1/6PP/3NK3/8/8/8/8 w - - 0 1 Analysis by Little Goliath 2000 v3.9: 2.h7 Te7+ 3.Kf5 Te5+ 4.Kf4 Te4+ 5.Kf3 Tf4+ 6.Kg3 Tf3+ 7.Kg2 Tf2+ 8.Kg1 Tf1+ 9.Kxf1 +- (6.85) Tiefe: 6/11 00:00:00 5kN = (0.00) Tiefe: 11/24 00:00:00 1100kN 2.hxg7+ Kxg7 3.Td6 Se7 4.Sxe7 Txe7+ 5.Kf5 Tb7 6.Td5 Ta7 7.Tc5 Ta2 8.Tc7+ Kf8 ² (0.28) Tiefe: 11/24 00:00:01 1657kN ± (1.18) Tiefe: 11/28 00:00:01 2533kN 2.Td6 gxh6 +- (1.49) Tiefe: 11/28 00:00:01 2562kN +- (1.48) Tiefe: 11/28 00:00:02 2806kN 2.Sf4 gxh6 3.Se6 Ta5+ 4.Kf4 Ta4+ 5.Kf3 Ta3+ 6.Ke2 Ta6 7.Te8 h5 +- (1.65) Tiefe: 11/29 00:00:02 3690kN +- (1.88) Tiefe: 11/29 00:00:03 4557kN 2.Sb4 gxh6 3.Sc6 Tg7 4.Kf5 +- (2.20) Tiefe: 11/29 00:00:03 5055kN +- (2.19) Tiefe: 11/29 00:00:03 5514kN 2.Tb8 gxh6 3.Sf6 Ta5+ 4.Kd4 Ta4+ 5.Kd5 Ta5+ 6.Kc4 Kg7 7.Sxg8 Kxg6 8.Se7+ Kg5 9.Tb2 h5 10.Th2 Kf4 11.Sc6 Ta6 12.Kd5 +- (2.36) Tiefe: 11/29 00:00:05 7218kN +- (2.57) Tiefe: 12/35 00:00:08 13356kN 2.Kf5 gxh6 3.Sf6 Ta5+ 4.Kf4 Ta4+ 5.Ke5 Ta5+ 6.Kd4 Ta4+ 7.Kc5 Kg7 8.Sxg8 Kxg6 9.Se7+ Kg5 10.Tg8+ Kf4 11.Sd5+ Kf3 12.Tf8+ Kg3 13.Th8 +- (2.73) Tiefe: 12/35 00:00:11 17077kN +- (2.60) Tiefe: 14/35 00:00:19 31282kN (Utzinger, MyTown 13.02.2005)
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