Author: Sune Larsson
Date: 20:17:09 02/26/01
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On February 26, 2001 at 23:10:35, Robin Smith wrote: >On February 26, 2001 at 20:11:21, Sune Larsson wrote: > >> >> [D]8/1p1b2k1/p1p1p1p1/2P1P2p/1P3P1P/P2B4/5K2/8 w - - 0 1 >> >> This position is from Baslavsky-Kondratiev 1947 (slightly modified) >> >> The white bishop can aim at 5 of the opponents pawns. The white king >> threatens to sneak in at the upper North-West corner - a5,b6,c7. >> The black bishop looks just like another pawn. The game went like this: >> >> 1.Ke3 Kf7 2.Kd4 Be8 3.Kc3 Ke7 4.Kb3 Kd8 5.Ka4 Kc7 6.Ka5 Bf7 (Black cannot >> allow Kb6 and is reduced to waiting moves with his bishop) >> 7.Bc4! Bg8 8.a4 Bf7 9.b5 axb5 10.axb5 Bg8 (if 10.-cxb5 11.Bxb5 Bg8 12.Be8) >> 11.b6+ (From now on black has to constantly guard himself against Ba6, >> which gives white free hands on the king's flank.) >> 11.-Kd8 12.Kb4 Bf7 13.Kc3 Kd7 14.Kd4 Kd8 15.Ke3 Kd7 16.f5! gxf5 17.Kf4 Bg6 >> 18.Kg5 Be8 19.Kf6 f4 20.Be2 and wins. >> >> >> Test1: The above position. It's won for white and your program should >> show a high +score for white. >> >> Test2: Exchange the good white Bd3 to the more ugly Bc3. This position >> is now a draw and your program should show close to 0.00. >> The new position below: > > Test3: Leave the white bishop on d3 and move the white pawn on a3 to > a5. Now white's king has no entry squares into black's camp. > Your program should show close to 0.00 > > [D]8/1p1b2k1/p1p1p1p1/P1P1P2p/1P3P1P/3B4/5K2/8 w - - 0 1 > >Robin Smith Thanks! Very nice. :)
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