Author: John Merlino
Date: 15:31:16 04/24/02
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On April 24, 2002 at 18:18:08, Eduard Nemeth wrote: >I played on the fritzserver a game comp.- comp. and in this position >I seen, that the Tablebases here shaw only draw-move for white with Bd7! > >I'm not sure that all Grandmasters this move woult plays? > >(german: Ich bin mir nicht sicher dass alle Grossmeister disesen Zug sehen >wuerden) > >[D]8/5k2/2B5/8/6pK/8/8/6r1 w - - 0 0 > >TBs says: Bd7 is only dwaw move Kg5 is a mate in 37 moves :) > >Eduard The question is would the comps be able to draw the game without tablebases. Chessmaster, for one, does know how to draw this position. On a PIII-600, after 1:31, CM shows a "drawing score", even though it would play Bd7 up until then (apart from a 2-second glitch around depth 9 ;-) Time Depth Score Positions Moves 0:00 2/3 -4.01 778 1.Kg5 Ke6 2.Kf4 Rc1 0:00 2/3 -3.79 1006 1.Bd7 g3 2.Bh3 0:00 3/4 -3.76 1589 1.Bd7 g3 2.Bc6 Ke6 3.Kg4 0:00 4/5 -3.90 4486 1.Bd7 g3 2.Bc6 Ke6 3.Bf3 Ke5 0:00 5/6 -3.89 11296 1.Bd7 g3 2.Bc6 Ke6 3.Bf3 Ke5 4.Kg4 0:00 6/7 -3.89 23434 1.Bd7 g3 2.Bc6 Ke6 3.Bf3 Ke5 4.Kg4 0:01 7/8 -3.82 55129 1.Bd7 g3 2.Bc6 Ke6 3.Kg4 Ke5 4.Bf3 g2 0:01 8/9 -3.87 151079 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Ke5 4.Kf3 Kd4 5.Kf4 g2 0:02 8/9 -3.82 184216 1.Kg5 Kg7 2.Be4 Re1 3.Kf4 Kf6 4.Bg2 Re2 5.Bd5 0:02 9/10 -3.77 297651 1.Kg5 Ke6 2.Kf4 Rc1 3.Bb5 Rb1 4.Bc4+ Kf6 5.Be2 Rb4+ 6.Kg3 Kf5 0:04 10/11 -3.87 484410 1.Kg5 Ke6 2.Kf4 Kd6 3.Be4 Kc5 4.Bb7 Kd4 5.Bc8 g3 6.Bh3 g2 0:04 10/11 -3.67 642406 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Kg6 4.Kh4 Kg7 5.Kg4 Kf6 6.Kf4 0:06 11/12 -3.72 913626 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Kg6 4.Kh4 Kg7 5.Kg4 Kh6 6.Kh4 Kg6 0:09 12/13 -3.70 1364338 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Kg6 4.Kh4 Kg7 5.Kg4 Kf6 6.Kf4 g2 7.Kf3 0:13 13/14 -3.64 2091628 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Kg6 4.Kh4 Kg7 5.Kg4 Kf6 6.Kf4 Kg6 7.Kg4 g2 8.Kf3 0:20 14/15 -3.64 3183625 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Kg6 4.Kh4 Kg7 5.Kg4 Kf6 6.Kf4 Kg6 7.Kg4 g2 8.Kf3 0:29 15/16 -3.46 4642729 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Kg6 4.Kh4 Kg7 5.Kg4 Kf6 6.Kf4 Kg6 7.Kg4 Kh6 8.Kh4 Kh7 0:42 16/17 -3.60 6807364 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Kg6 4.Kh4 Kg7 5.Kg4 Kf6 6.Kf4 Kg6 7.Kg4 Kg7 8.Kf3 Kf7 9.Kf4 g2 1:31 17/18 -0.69 15882253 1.Bd7 g3 2.Bh3 Kf6 3.Kg4 Kg6 4.Kh4 Kf7 5.Kh5 Ke7 6.Kg5 Kd6 7.Kg4 Kc5 8.Kf3 Rc1 9.Kxg3 Rc3+ 10.Kg4 Kd4 jm
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