X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fsearch.cpp;h=cd435c672f877a64082689d91eb852f5fbe3eb07;hb=8a4821923ac6860c791185a6d25c60ad0391739f;hp=507339504600cb2e49bc1cbe5c6558e59784fd86;hpb=3ac3b68540e93770e5a806196537c0e9a2d81a67;p=stockfish

diff --git a/src/search.cpp b/src/search.cpp
index 50733950..cd435c67 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -723,10 +723,10 @@ namespace {
     else
     {
         int p = (ss-1)->statScore;
-        int malus = p > 0 ? (p + 5000) / 1024 :
-                    p < 0 ? (p - 5000) / 1024 : 0;
+        int bonus = p > 0 ? (-p - 2500) / 512 :
+                    p < 0 ? (-p + 2500) / 512 : 0;
 
-        ss->staticEval = eval = (ss-1)->currentMove != MOVE_NULL ? (pureStaticEval = evaluate(pos)) - malus
+        ss->staticEval = eval = (ss-1)->currentMove != MOVE_NULL ? (pureStaticEval = evaluate(pos)) + bonus
                                                                  : (pureStaticEval = -(ss-1)->staticEval + 2 * Eval::Tempo);
 
         tte->save(posKey, VALUE_NONE, BOUND_NONE, DEPTH_NONE, MOVE_NONE, pureStaticEval);