Author: Mike S.
Date: 12:07:21 11/24/01
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[D]8/5pk1/5p2/7P/4BK2/7P/8/8 b - - 0 46 Engine: Yace 0.99.56 von Dieter Buerssner 10.01 0:00 -1.98-- 46...f5 47.Kxf5 Kh6 (143.939) 209.8 10.01 0:01 -1.98 46...f5 47.Kxf5 Kh8 48.h6 Kh7 49.Kf6+ Kh8 50.Lh7 Kxh7 51.Kg5 f6+ 52.Kf4 Kxh6 53.h4 Kh5 54.Kf5 Kh6 55.h5 Kh7 56.h6 Kh8 57.h7 Kxh7 58.Kxf6 (305.338) 280.1 (...) 15.01 0:12 -1.88 46...f5 47.Lc2 Kh8 48.Lxf5 Kg7 49.Ld7 Kh8 50.h6 Kh7 51.Ke4 Kh8 52.Kd3 Kg8 53.Lc6 f6 54.Ld7 f5 55.Le6+ Kh8 56.h4 Kh7 57.Ld5 Kh8 58.Lc6 Kh7 59.La8 Kh8 (5.551.494) 437.2 (...) 19.01 1:07 -2.36 46...f5 47.Lxf5 f6 48.Ke4 Kh6 49.Kd5 Kg7 50.Ke6 Kh8 51.h6 Kg8 52.Kd6 Kh8 53.Kd5 Kg8 54.Kd4 Kh8 55.Lg6 f5 56.h7 Kg7 57.Lh5 Kh8 58.Kc3 Kg7 59.Lf7 Kh8 (33.247.014) 489.4 (from P3/700 64 MB hash) Many engines can handle the blind bishop motif in (very) easy positions, but fail to recognise it properly in more complicated practical positions. One of my testpositions is: [D]8/5pk1/5pnp/8/4BPP1/4K2P/8/8 b - f3 0 44 44...h5! is an easy draw, and therefore black's best continuation (I don't care if other moves *may* hold a draw too, because undoubtly those are not as clear as utilizing white's blind bishop). Regards, M.Scheidl
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