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Increase non-PV IID search depth

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bench: 5146380
This commit is contained in:
Marco Costalba
2013-03-22 20:57:31 +01:00
parent 077e32efc9
commit 81e9cf043a
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@@ -745,7 +745,7 @@ namespace {
&& ttMove == MOVE_NONE
&& (PvNode || (!inCheck && ss->staticEval + Value(256) >= beta)))
{
Depth d = (PvNode ? depth - 2 * ONE_PLY : depth / 2);
Depth d = (PvNode ? depth - 2 * ONE_PLY : depth - 4 * ONE_PLY);
ss->skipNullMove = true;
search<PvNode ? PV : NonPV>(pos, ss, alpha, beta, d);