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Subject: Re: Zappa endgame bug

Author: Uri Blass

Date: 00:05:25 08/24/05

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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.

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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