Author: Volker Pittlik
Date: 02:11:26 12/16/03
Go up one level in this thread
On December 15, 2003 at 16:23:15, Dieter Buerssner wrote: ... >Yace played Re3? instead (with 0.0 score). Are there engines, that show in >reasonable time a big score difference between Re3 and Ra4?. after 2 minutes: 5k2/1R4p1/5p2/4p2p/1p2P2P/r4P2/PK4P1/8 b - - 0 1 Analysis by Fritz 7: 1. = (0.00): 1...Ra4 2.g3 g6 3.Rb8+ Kf7 4.Rb7+ Kf8 5.Rb8+ Kf7 6.Rb7+ Kf8 7.Rb8+ Kf7 8.Rb7+ Kf8 2. ² (0.44): 1...Re3 2.Rxb4 Re2+ 3.Kb3 Rxg2 4.a4 Rg3 5.a5 Rxf3+ 6.Ka4 g5 7.a6 Rf2 8.Rb3 Rc2 3. = (0.19): 1...Rd3 2.Rxb4 Rd2+ 3.Kb3 Rxg2 4.a4 Rg3 5.a5 Rxf3+ 6.Ka4 g5 7.a6 Rf2 8.Kb5 gxh4 ... >It is not a real good test position, because engines can show for a long time >the same score for Ra4 and Re3, and the chosen move might be pure luck. >Therefore also the question for scores after those moves. after Ra4 (2 minutes) 5k2/1R4p1/5p2/4p2p/rp2P2P/5P2/PK4P1/8 w - - 0 1 Analysis by Fritz 7: 1. = (0.06): 2.g4 2. = (0.03): 2.Kb1 Kg8 3.Ka1 g6 4.Kb2 Kf8 5.Rb8+ Kg7 6.Rb7+ Kg8 7.Kb1 Kh8 8.g3 3. = (0.03): 2.Ka1 Kg8 3.Kb1 g6 4.Kb2 Kf8 5.Rb8+ Kg7 6.Rb7+ Kg8 7.Kb1 Kh8 8.g3 after Re3 (2 minutes) 5k2/1R4p1/5p2/4p2p/1p2P2P/4rP2/PK4P1/8 w - - 0 1 Analysis by Fritz 7: 1. ² (0.44): 2.Rxb4 Re2+ 3.Kb3 Rxg2 4.a4 Rf2 5.a5 Rxf3+ 6.Ka4 g5 7.a6 Rf2 8.Rb8+ Kf7 9.Kb3 2. = (0.00): 2.Rb8+ Ke7 3.Rxb4 Re2+ 4.Kb3 Rxg2 5.a4 Rg3 6.a5 Rxf3+ 7.Kb2 g5 3. ³ (-0.37): 2.Rc7 g5 3.hxg5 fxg5 4.Rc5 h4 5.Rxe5 Re2+ 6.Kb3 Rxg2 7.Rb5 h3 8.Rxb4 Rf2 9.Rb8+ Volker
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