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Subject: Re: Odd Position

Author: Dan Homan

Date: 13:37:23 01/30/98

Go up one level in this thread


Here's the output of my program, EXchess.  It likes h5 for a
while but then switches to Kf4.  My amateur analysis is that
Kf4 is better because it closes off any possibility that
the white king can catch the h-pawn.

 - Dan

Note my scores are 100 = 1 pawn.

Black(1): display

  +---+---+---+---+---+---+---+---+
8 |   |   |   |   |   |   |   |   |    Black to move
  +---+---+---+---+---+---+---+---+
7 |   |   |   |   |   |   |   | *P|    castle: -
  +---+---+---+---+---+---+---+---+
6 |   | *P|   |   | K | P | *B|   |
  +---+---+---+---+---+---+---+---+
5 | *P|   |   |   |   |   | *K|   |
  +---+---+---+---+---+---+---+---+
4 | P |   | P |   |   |   |   |   |    fifty: 0
  +---+---+---+---+---+---+---+---+
3 |   | P |   |   |   |   |   |   |
  +---+---+---+---+---+---+---+---+
2 |   |   |   |   |   |   |   |   |
  +---+---+---+---+---+---+---+---+
1 |   |   |   |   |   |   |   |   |
  +---+---+---+---+---+---+---+---+
    a   b   c   d   e   f   g   h

Black(1): analyze 120
  3.    357     0      288   g6c2 b3b4 c2f5 e6e5
  4.    244     0     1302   g6c2 f6f7 c2f5 e6e5 f5d3
  4.    323     0     2909   g6f5 e6e5 f5c2 c4c5 c2b3
  5.     11     1     7549   g6f5 e6e7 f5g6 f6f7 g6f7 e7f7
  5.     16     1     9360   g5f4 f6f7 g6f7 e6f7 f4f5 f7f8
  5.     18     1    11889   h7h5 f6f7 g6f7 e6f7 h5h4 f7f8
  5.    224     1    13689   g5h6 e6d7 g6c2 d7c6 c2b3
  6.     20     1    17463   g5h6 e6e7 b6b5 f6f7 g6f7 e7f7
  7.     16     1    34108   g5h6 e6e7 h6g5 f6f7 g6f7 e7f7
                               g5f4
  7.     18     2    62858   g6h5 f6f7 h5f7 e6f7 h7h5 f7f8
                               h5h4 f8f7
  7.     30     2    66095   h7h5 f6f7 g6f7 e6f7 h5h4 f7f8
                               g5h5 f8f7
  8.     30     2    75499   h7h5 f6f7 g6f7 e6f7 h5h4 f7e7
                               g5h5 e7f7
  9.     25     4   143255   h7h5 f6f7 g6f7 e6f7 h5h4 f7e7
                               g5h5 e7d6 h4h3 c4c5
 10.    111    13   502809   h7h5 c4c5 h5h4 c5b6 h4h3 e6e5
                               h3h2 b6b7 h2h1 b7b8
 11.     14    28  1119575   h7h5 f6f7 g6f7 e6f7 h5h4 c4c5
                               b6c5 f7e6 c5c4 b3c4
 11.     15    55  2182050   g6f5 e6f7 f5g6 f7e7 g6h5 f6f7
                               h5f7 e7f7 g5f5 f7f8
 11.    110    89  3536351   g5f4 f6f7 g6f7 e6f7 f4e5 f7e7
                               e5d4 e7d7 d4c3 d7c6
 12.    110   100  4004436   g5f4 f6f7 g6f7 e6f7 f4e5 f7e7
                               e5d4 e7d7 d4c3 d7c6

node_count = 4800970 quiescent nodes = 127829 eval_count = 337008
hash hits = 1536049 hash moves = 246483 pawn hash hits = 330694
node_rate = 40008 null cuts = 0 exten = 153542 mthreats = 0



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