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Test Easy Move if no BestMoveChanges

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In case we find a very good move after a
troubled start, we don't return immediately
anymore.

Tested directly at long TC where it passed:
LLR: 2.95 (-2.94,2.94) [0.00,6.00]
Total: 13910 W: 2397 L: 2228 D: 9285

bench: 7995098
This commit is contained in:
Joona Kiiski
2013-11-01 20:42:47 +00:00
committed by Marco Costalba
parent a3a0df92a3
commit d34bb889b1
1 changed files with 2 additions and 0 deletions
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2
src/search.cpp
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@@ -19,6 +19,7 @@
#include <algorithm> #include <algorithm>
#include <cassert> #include <cassert>
#include <cfloat>
#include <cmath> #include <cmath>
#include <cstring> #include <cstring>
#include <iostream> #include <iostream>
@@ -440,6 +441,7 @@ namespace {
// Stop search early if one move seems to be much better than others // Stop search early if one move seems to be much better than others
if ( depth >= 12 if ( depth >= 12
&& BestMoveChanges <= DBL_EPSILON
&& !stop && !stop
&& PVSize == 1 && PVSize == 1
&& bestValue > VALUE_MATED_IN_MAX_PLY && bestValue > VALUE_MATED_IN_MAX_PLY