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Remove pruning condition on alpha

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Further simplifying on Lucas's idea, seems reliable
in tests:

ELO: 2.15 +-7 (95%) LOS: 84.9%
Total: 9999 W: 1831 L: 1769 D: 6399
This commit is contained in:
Marco Costalba 2013-02-27 08:07:26 +01:00
parent 335b57b5ef
commit bc38efd128
1 changed files with 1 additions and 2 deletions
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3
src/search.cpp
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@ -860,8 +860,7 @@ split_point_start: // At split points actual search starts from here
if ( !captureOrPromotion if ( !captureOrPromotion
&& !inCheck && !inCheck
&& !dangerous && !dangerous
&& move != ttMove && move != ttMove)
&& alpha > VALUE_MATED_IN_MAX_PLY)
{ {
// Move count based pruning // Move count based pruning
if ( !PvNode if ( !PvNode