X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fsearch.cpp;h=c0b6507ce9ecddeffac44bc2bea2df64ed7d2de7;hb=d8e7ce1863d234f585193125b328e18668bd1e71;hp=3b5cae4541eecec487b02bb3cb72c7233492e453;hpb=8ee0842c81ba41482d3373d4174bfed53b1bc9fc;p=stockfish

diff --git a/src/search.cpp b/src/search.cpp
index 3b5cae45..c0b6507c 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -199,7 +199,7 @@ namespace {
   Depth ThreatDepth; // heavy SMP read access
 
   // Last seconds noise filtering (LSN)
-  const bool UseLSNFiltering = false;
+  const bool UseLSNFiltering = true;
   const int LSNTime = 4000; // In milliseconds
   const Value LSNValue = value_from_centipawns(200);
   bool loseOnTime = false;
@@ -1048,7 +1048,7 @@ namespace {
     EvalInfo ei;
 
     if (ply >= PLY_MAX - 1)
-        return evaluate(pos, ei, threadID);
+        return pos.is_check() ? quick_evaluate(pos) : evaluate(pos, ei, threadID);
 
     // Mate distance pruning
     Value oldAlpha = alpha;
@@ -1238,7 +1238,7 @@ namespace {
     EvalInfo ei;
 
     if (ply >= PLY_MAX - 1)
-        return evaluate(pos, ei, threadID);
+        return pos.is_check() ? quick_evaluate(pos) : evaluate(pos, ei, threadID);
 
     // Mate distance pruning
     if (value_mated_in(ply) >= beta)
@@ -1529,8 +1529,8 @@ namespace {
     else
         staticValue = evaluate(pos, ei, threadID);
 
-    if (ply == PLY_MAX - 1)
-        return evaluate(pos, ei, threadID);
+    if (ply >= PLY_MAX - 1)
+        return pos.is_check() ? quick_evaluate(pos) : evaluate(pos, ei, threadID);
 
     // Initialize "stand pat score", and return it immediately if it is
     // at least beta.