Don't modify Eval with search stats at ttHits

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index bda4c4c508afa206d38d8ab6d6862a5b7be02bdb..507339504600cb2e49bc1cbe5c6558e59784fd86 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -713,7 +713,7 @@ namespace {
     {
         // Never assume anything on values stored in TT
         if ((ss->staticEval = pureStaticEval = eval = tte->eval()) == VALUE_NONE)
     {
         // Never assume anything on values stored in TT
         if ((ss->staticEval = pureStaticEval = eval = tte->eval()) == VALUE_NONE)

-            eval = ss->staticEval = (pureStaticEval = evaluate(pos)) - 10 * ((ss-1)->statScore > 0);
+            eval = ss->staticEval = pureStaticEval = evaluate(pos);

 
         // Can ttValue be used as a better position evaluation?
         if (    ttValue != VALUE_NONE
 
         // Can ttValue be used as a better position evaluation?
         if (    ttValue != VALUE_NONE