diff options
Diffstat (limited to 'src/search.c')
| -rwxr-xr-x | src/search.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/search.c b/src/search.c index e0339cf..eb931bc 100755 --- a/src/search.c +++ b/src/search.c @@ -792,6 +792,8 @@ Return value: FALSE if it can be skipped **/ +#define QSEARCH_CONSIDER_MARGIN (120) + static FLAG INLINE _ShouldWeConsiderThisMove(IN SEARCHER_THREAD_CONTEXT *ctx, IN ULONG uMoveNum, @@ -827,6 +829,7 @@ _ShouldWeConsiderThisMove(IN SEARCHER_THREAD_CONTEXT *ctx, { i &= STRIP_OFF_FLAGS; ASSERT(i >= 0); + i -= MOVE_SCORE_ORDERING_BIAS(mv); if (mv.pCaptured) { // If there are very few pieces left on the board, @@ -859,7 +862,7 @@ _ShouldWeConsiderThisMove(IN SEARCHER_THREAD_CONTEXT *ctx, // penalty can make them look "futile" sometimes. if ((PIECE_VALUE(mv.pCaptured) == PIECE_VALUE(mvLast.pCaptured)) && - (i + 200 > iFutility)) + (i + 200 + QSEARCH_CONSIDER_MARGIN > iFutility)) { return(TRUE); } @@ -867,7 +870,7 @@ _ShouldWeConsiderThisMove(IN SEARCHER_THREAD_CONTEXT *ctx, // Otherwise, even if a move is even/winning, make sure it // brings the score up to at least somewhere near alpha. - if (i > iFutility) + if (i + QSEARCH_CONSIDER_MARGIN > iFutility) { return(TRUE); } |