Author: Uri Blass
Date: 19:53:46 05/24/01
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On May 24, 2001 at 19:37:02, Miguel A. Ballicora wrote: >[D]5rk1/ppp3p1/7p/3p2P1/3Pb3/5RPP/PPP2RK1/8 b - - > >Black to move and win with h5. No zugswang here, white can play for ever >Rf1-f2-f1. Now there is no zugswang, but too deep to see a victory, only >evaluation can make it. Black King is loose to place itself in a good position >to trade everything in f3 to win a pawn endgame. Can pepito see it? >If it can, can win the game if you play against it? >Any other program? I am going to play h5 in a game because I am sure that black is not losing but I am not sure if black can win after h5 h4. White is a pawn up in the pawn endgame and I suspect that white can put the pawns in good squares by b3 and c3 so black cannot trade pieces in the right way. I suspect that no top program can find h5 and the only programs that can find h5 are weak programs and the fact that they can find it is because of some bug or bad design decision that may be productive in this position but counter productive in other positions. Your previous test position was already too hard to find by search and this position is even harder to find by evaluation because in the previous position white can see by evaluation that only pawns can move when in this case the rook can also move. I do not understnad why do you expect programs to see things that almost never happen in games. Programmers usually care about winning games and not about your positions. Uri
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