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Subject: Re: A test position to see if your program is materialistic(most are not)

Author: Dann Corbit

Date: 23:34:36 11/12/01

Go up one level in this thread


On November 12, 2001 at 06:22:04, Uri Blass wrote:

>This position could happen in my crrespondence game
>
>[D]2r2rk1/p3q1pp/1p6/2bp1p2/4n3/1P2P1P1/PB3PBP/1QR1RbK1 w - - 0 25
>
>If your program plays Bxe4 then it is materialistic(Bxe4 is the only move that
>does not lose material)
>
>If it plays Rxf1 then it is not materialistic
>
>It seems that most programs are not materialistic based on the test that I did.
>I guess also that most humans are not materialistic here and are going to prefer
>Rxf1

Beowulf says:

Current Position = -3.70
Number of Possible Moves = 34

  6     18      46      52594   e1f1 c5a3 c1c8 f8c8 b2d4 e7b4
  7     17     124     143235   e1f1 e4d2 b1d3 d2f1 c1f1 e7c7 d3d5 c7f7
  8     22     534     572141   e1f1 c8d8 b1d3 c5a3 b2a3 e7a3 f2f3 a3a2 f3e4
d5e4
  9     13    1391    1537175   e1f1 e4d2 b1d3 d2f1 g2d5 g8h8 c1f1 e7g5 a2a3
g5g6
 10     21    2648    3117416   e1f1 e4d2 b1d3 d2f1 g2d5 g8h8 c1f1 e7d6 g1g2
a7a6 f1h1
 11     11    5245    6847892   e1f1 e4d2 b1d3 d2f1 g2d5 g8h8 g1f1 e7d6 h2h4
c8d8

Search Time : 999.0 Seconds
Total Nodes Searched   : 104914396  (89.3% Qui)
Total Nodes Evaluated  : 93649780
Cuts       : Delta 23055177  : SEE     32866265  : Mate          0
           : Razor  3417006  : Eval    35570165
Extensions : Check  1819785  : OneRep    55737  : CMThreat  10005
           : Pawn     22885  : Recap    270436  : RevCheck  56007
Hash Stores (Size) : 11443798  (5592373)
Hash Probes (Hits) : 79196516  (5928756)
EGTB Probes (Hits) : 0  (0)
Move Ordering      : 59.0%
Best Move = e1f1
[1]W >
Current Position = -3.70
Number of Possible Moves = 34

 12     23    2159    2645916   e1f1 e4d2 b1d3 d2f1 g2d5 g8h8 g1f1 e7d6 f1g2
c8d8 c1d1





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