Author: Thomas Mayer
Date: 06:34:01 12/28/01
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Hi Steffen, >Today Hossa played a blitz game with Tinker at ICC where a KBPKP endgame was on >the board: > >[D]8/8/p4b1P/3K4/8/8/8/1k6 b > >Hossa evaluates this as a win for black, because the black pawn has a black >promotion square and there is no white pawn on the b file in front of the black >pawn. Unfortunately this position is a draw. Can you define a rule for such a >position class ("search will do it" doesn't count; at least the big score I gave >for this position costed 1/2 point in that game)? I think it should be a >combination of this: >1. white has an advanced white passer >2. the black king isnt able to protect the black pawn >3. the distance between the pawns is big hm well, I am not sure, but I think it can be described like that: That black bishop can't control a field before the white pawn to stop it from advancing and control it's own pawn at the same time... if that would be possible, black would win... because it's king could either get the white pawn without loosing it's own or it's own could promote... how about that one ? Greets, Thomas
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