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Contempt factor: use DrawValue also in case of stealmates

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Spotted by Jörg Oster.

No functional change (when contempt factor is not used).
This commit is contained in:
Marco Costalba 2012-10-20 11:02:37 +02:00
parent 1018474853
commit 55bd27b8f0
1 changed files with 2 additions and 1 deletions
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3
src/search.cpp
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@ -1023,7 +1023,8 @@ split_point_start: // At split points actual search starts from here
// If we are in a singular extension search then return a fail low score. // If we are in a singular extension search then return a fail low score.
// A split node has at least one move, the one tried before to be splitted. // A split node has at least one move, the one tried before to be splitted.
if (!moveCount) if (!moveCount)
return excludedMove ? alpha : inCheck ? mated_in(ss->ply) : VALUE_DRAW; return excludedMove ? alpha
: inCheck ? mated_in(ss->ply) : DrawValue[pos.side_to_move()];
// If we have pruned all the moves without searching return a fail-low score // If we have pruned all the moves without searching return a fail-low score
if (bestValue == -VALUE_INFINITE) if (bestValue == -VALUE_INFINITE)