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Remove useless razoring condition

Browse Source 
STC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 20626 W: 3977 L: 3855 D: 12794

LTC:
LLR: 3.10 (-2.94,2.94) [-3.00,1.00]
Total: 87334 W: 13675 L: 13648 D: 60011

Retire also the now unused pawn_on_7th() helper.

bench: 8248166
This commit is contained in:
Marco Costalba
2015-06-30 13:50:59 +02:00
parent aa0dc16b75
commit b2edac7075
3 changed files with 3 additions and 9 deletions
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3
src/search.cpp
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@@ -674,8 +674,7 @@ namespace {
if ( !PvNode
&& depth < 4 * ONE_PLY
&& eval + razor_margin(depth) <= alpha
&& ttMove == MOVE_NONE
&& !pos.pawn_on_7th(pos.side_to_move()))
&& ttMove == MOVE_NONE)
{
if ( depth <= ONE_PLY
&& eval + razor_margin(3 * ONE_PLY) <= alpha)