Author: Robert Hyatt
Date: 08:14:48 08/24/05
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On August 24, 2005 at 03:05:25, Uri Blass wrote: >On August 24, 2005 at 01:23:26, Majd Al-Ansari wrote: > >>A human will immediately assess that black has a passed pawn on kingside so his >>own passed pawn on queenside cannot be supported by the king .... therefore an >>obvious draw without any calculation needed. > >I think that you overestimate humans. >I was not talking about the top humans but about the big majority of humans who >play in tournaments. > >Of course humans can see that black cannot support the passed pawns by the king >after some thinking but not immediately. Sorry, but I disagree here. But then I have worked on this exact code in Crafty many times. I don't even have to think about the king-side majority that becomes a passed pawn. So when I saw the position, my only question was "can black do anything on the queenside without the king, because the king has to restrain white's passed pawn on the kingside. After looking for a few seconds, I thought "no". So now it does become some calculation to see if either can win when both have passers on opposite wings. Since white's king is positioned OK, didn't take me much to come up with "draw"... > >I think that most humans do not know this pattern and know that 1 pawn advantage >in the endgame usually win so also 2 pawns so at blitz time control they may >blunder. > >Passed pawns are considered as more dangerous than candidate passed pawns and >humans may think that if they can capture passed pawn then candidate pawn is no >problem even without thinking. > >I know that I am a candidate master and I was surprised to see that it is a >draw. > >Note that at tournament time control I expect myself to see that it is a draw >because I know that it is better to think more before forcing transition to pawn >endgame but blitz is a different situation. > >Uri
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