Author: Robert Hyatt
Date: 13:05:59 02/13/02
Go up one level in this thread
On February 13, 2002 at 15:38:58, Kurt Utzinger wrote:
>Black to move. The position is a draw, even if White could manage to win both
>Black pawns. But quite a lot of [top] programs do not at all understand this and
>show completely wrong evaluations.
>
>A good example where a 1500-ELO-player does better than the so called
>2700-ELO-silicon-monsters!!
>Kurt
>
>[D] 8/8/5k1p/6pP/6K1/8/8/3B4 b - - 0 1
First, crafty's static evaluation:
material evaluation................. 2.00
development......................... 0.00
pawn evaluation..................... -0.47
passed pawn evaluation.............. 0.16
passed pawn race evaluation......... 0.00
king safety evaluation.............. 0.00
interactive piece evaluation........ -1.69
total evaluation.................... 0.00
Second, a simple search:
9-> 0.05 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
10 0.10 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
10-> 0.10 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
11 0.16 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
11-> 0.16 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
12 0.28 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
12-> 0.28 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
13 0.46 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
13-> 0.47 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
14 0.74 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
Bd7 Kh7 5. Be8 Kg7
14-> 0.75 0.00 1. ... Kf7 2. Ba4 Kf6 3. Be8 Kg7 4.
The right knowledge solves this class of positions quite well...
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