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Revert "Reduce more CUT nodes only if parent node is reduced"
author
Marco Costalba
<mcostalba@gmail.com>
Fri, 14 Jun 2013 06:24:37 +0000
(08:24 +0200)
committer
Marco Costalba
<mcostalba@gmail.com>
Fri, 14 Jun 2013 06:27:06 +0000
(08:27 +0200)
This reverts commit
d54e8a59551a7ebcbf2c2155dce46c7386b1742a
.
It was not proved with SPRT this tweak is stronger. So revert it
for now to follow fishtest guidelines.
bench:
5108393
src/search.cpp
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diff --git
a/src/search.cpp
b/src/search.cpp
index bfab6a4e1cd2829408f1e0d849f3962ab9fd77db..a10e1180c344a3af45a23bf293386d27cc48ddbf 100644
(file)
--- a/
src/search.cpp
+++ b/
src/search.cpp
@@
-949,7
+949,7
@@
split_point_start: // At split points actual search starts from here
{
ss->reduction = reduction<PvNode>(depth, moveCount);
- if (!PvNode && cutNode
&& (ss-1)->reduction
)
+ if (!PvNode && cutNode)
ss->reduction += ONE_PLY;
if (move == countermoves[0] || move == countermoves[1])