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Fix a small bug in rook pawn evaluation

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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
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Marco Costalba
2009-01-06 16:10:22 +01:00
parent cbfbf25d1b
commit 9b87d151bc
1 changed files with 2 additions and 2 deletions
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4
src/evaluate.cpp
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@@ -1018,8 +1018,8 @@ namespace {
// value if the other side has a rook or queen.
if (square_file(s) == FILE_A || square_file(s) == FILE_H)
{
if( pos.non_pawn_material(them) == KnightValueMidgame // FIXME should be <= ???
&& pos.piece_count(them, KNIGHT) == 1)
if( pos.non_pawn_material(them) <= KnightValueMidgame
&& pos.piece_count(them, KNIGHT) <= 1)
ebonus += ebonus / 4;
else if(pos.rooks_and_queens(them))
ebonus -= ebonus / 4;