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[Bug-gnubg] Question: Interpreting Evaluation Results


From: Bob Hart
Subject: [Bug-gnubg] Question: Interpreting Evaluation Results
Date: Mon, 2 Mar 2009 14:29:13 -0500

Hi-

  I would like to understand how to interpret evaluation results presented
with different plies and out-of-order equities.

  In reviewing the results below, I would ideally want to conclude "at a
glance" that gnubg evaluates 24/21 13/9 as the best play, because it is at
the top of the list. It appears, however, that the moves are not sorted
primarily in equity value, but rather by ply-value and then by equity value.
So is gnubg saying that the best move is the first one, 24/21 13/9, or is
the best move the third one, 24/20 13/10, which has the best equity?

1 Cubeful 5-ply -0.199          24/21 13/9
2 Cubeful 4-ply -0.163  +0.036  13/10 13/9
3 Cubeful 2-ply -0.155  +0.044  24/20 13/10
4 Cubeful 2-ply -0.182  +0.017  24/21 24/20
5 Cubeful 2-ply -0.217  -0.018  13/9  8/5
. . . Many more moves, all with worse equity . . .

  Thanks for any insight.

-Bob

         







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