Author: Otello Gnaramori
Date: 10:55:34 01/19/02
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On January 19, 2002 at 12:41:23, Eduard Nemeth wrote: >In my analyses the game Ivanchuk - Ponomariov (4) today (end draw), >I find a interesting endgame position: > >[D]8/p7/4p3/1k1pP2K/1bnP1P2/2B5/4N3/8 w - - 0 1 > >white win with kg5! or Kg6! (Bxb4 is a blunder with draw). > >What plays your program now? > >4.Kg6!! +- [4.Bxb4 Kxb4 5.Kg6 a5 6.Kf6 a4 7.Kxe6 a3 8.Nc1 Kc3 9.Kxd5 Nb6+ =] > >Eduard Hi Eduard, On my rusty computer (450 Mhz) Fritz6 founds it after some indecisions : Analysis by Fritz 6: 1.Bxb4-- ³ (-0.47) Depth: 1/3 00:00:00 1.Bxb4-- ³ (-0.47) Depth: 1/3 00:00:00 1.Bxb4 Kxb4 2.Kg5 ³ (-0.44) Depth: 2/4 00:00:00 1.Bxb4 Kxb4 2.Kg5 a5 ³ (-0.66) Depth: 3/7 00:00:00 1.Kg6! ³ (-0.62) Depth: 3/10 00:00:00 1.Kg6! Bxc3 2.Nxc3+ Kb4 3.Na2+ Kb3 ³ (-0.53) Depth: 3/10 00:00:00 1.Kg6 Bxc3 2.Nxc3+ Kb4 3.Na2+ Kb3 4.Nc1+ Kc3 5.Ne2+ Kd3 ³ (-0.50) Depth: 4/11 00:00:00 1.Bxb4! ³ (-0.47) Depth: 4/11 00:00:00 1kN 1.Bxb4! Kxb4 2.Kg5 Ne3 3.Ng3 ³ (-0.37) Depth: 4/11 00:00:00 1kN 1.Bxb4! = (-0.06) Depth: 5/12 00:00:00 1kN 1.Bxb4! Kxb4 2.Kg5 a5 3.Kf6 a4 4.Kxe6 +- (1.41) Depth: 5/12 00:00:00 2kN 1.Bxb4-- ± (1.09) Depth: 6/9 00:00:00 3kN 1.Bxb4-- Kxb4 2.Kg5 ² (0.50) Depth: 6/10 00:00:00 3kN 1.Bxb4! ± (0.81) Depth: 7/14 00:00:01 6kN 1.Bxb4! Kxb4 2.Kg5 a5 3.Kf6 a4 4.Kxe6 Ne3 +- (1.53) Depth: 7/14 00:00:01 9kN 1.Bxb4-- ± (1.22) Depth: 8/14 00:00:01 12kN 1.Bxb4-- Kxb4 2.Kg5 Ne3 3.Kf6 Kc4 4.Kxe6 Kd3 5.Ng3 Kxd4 ² (0.53) Depth: 8/14 00:00:02 15kN 1.Bxb4! ± (0.84) Depth: 9/15 00:00:04 31kN 1.Bxb4! Kxb4 2.Kg5 Nb6 3.Kf6 Kc4 4.Kxe6 Kd3 5.Nc1+ Kxd4 ± (1.34) Depth: 9/19 00:00:05 43kN 1.Bxb4 Kxb4 2.Kg5 Ne3 3.Kf6 Kc4 4.Kxe6 a5 5.f5 Kd3 ± (1.13) Depth: 10/20 00:00:07 87kN 1.Bxb4 Kxb4 2.Kg5 Ne3 3.Kf6 Kc4 4.Kxe6 a5 5.f5 Kd3 ± (1.19) Depth: 11/22 00:00:10 172kN 1.Bxb4 Kxb4 2.Kg5 Nb6 3.Kf6 Kc4 4.Kxe6 Kd3 5.Ng1 a5 ± (1.22) Depth: 12/22 00:00:11 291kN 1.Bxb4-- ± (0.91) Depth: 13/23 00:00:12 635kN 1.Bxb4-- ± (0.91) Depth: 13/23 00:00:12 705kN 1.Kg6! ± (0.94) Depth: 13/25 00:00:13 958kN 1.Kg6! Ba3 2.Kf7 Ne3 3.Kxe6 Kc4 4.Bd2 Nc2 5.f5 Nxd4+ +- (1.47) Depth: 13/27 00:00:16 1814kN 1.Kg6 Ba3 2.Kf7 Ne3 3.Kxe6 Kc4 4.Bd2 Nc2 5.f5 Nxd4+ +- (1.56) Depth: 14/26 00:00:18 2447kN 1.Kg6 Ba3 2.Kf7 Ne3 3.Kxe6 Kc4 4.Bd2 Nc2 5.f5 Kd3 +- (1.44) Depth: 15/28 00:00:24 3882kN 1.Kg6 Ba3 2.Kf7 Ne3 3.Kxe6 Kc4 4.Bd2 Nc2 5.f5 Nxd4+ +- (1.44) Depth: 16/30 00:00:34 6958kN 1.Bxb4! +- (1.47) Depth: 16/30 00:00:40 9358kN 1.Bxb4! Kxb4 2.Kg5 a5 3.Kf6 a4 4.Kxe6 a3 5.Nc1 Ne3 +- (1.81) Depth: 16/31 00:00:47 11645kN 1.Bxb4! +- (2.13) Depth: 17/28 00:00:53 13844kN 1.Bxb4! Kxb4 2.Kg5 a5 3.Kf6 a4 4.Kxe6 a3 5.Nc1 Ne3 +- (2.66) Depth: 17/30 00:01:01 16724kN 1.Bxb4 Kxb4 2.Kg5 a5 3.Kf6 a4 4.Kxe6 a3 5.Nc1 Kc3 +- (2.47) Depth: 18/35 00:01:17 22641kN 1.Bxb4-- +- (2.16) Depth: 19/35 00:01:33 28722kN 1.Bxb4-- Kxb4 2.Kg5 a5 3.Kf6 a4 4.Kxe6 a3 5.Nc1 Kc3 +- (2.09) Depth: 19/36 00:01:59 38754kN 1.Bxb4-- +- (1.78) Depth: 20/36 00:02:50 57260kN 1.Bxb4-- Kxb4 2.Kg5 a5 3.Kf6 a4 4.Kxe6 a3 5.Nc1 Kc3 ± (1.31) Depth: 20/41 00:04:51 103300kN 1.Kg6! ± (1.34) Depth: 20/41 00:06:54 149404kN 1.Kg6! Ba3 2.Kf7 Ne3 3.Kxe6 Kc4 4.Bd2 Nc2 5.f5 Kd3 +- (1.53) Depth: 20/41 00:10:14 221892kN w.b.r, Otello
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