Stockfish 1.8 beta 1

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 693bea940548f31d975db84c428d2b8273819c8a..4f8401bbb651ea62cbc5761d8a0b91614f31f3bd 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -235,7 +235,7 @@ namespace {
   const Value EasyMoveMargin = Value(0x200);
 
   // Last seconds noise filtering (LSN)
-  const bool UseLSNFiltering = true;
+  const bool UseLSNFiltering = false;
   const int LSNTime = 100; // In milliseconds
   const Value LSNValue = value_from_centipawns(200);
   bool loseOnTime = false;
@@ -1237,7 +1237,7 @@ namespace {
 
     // Step 9. Internal iterative deepening
     if (    depth >= IIDDepth[PvNode]
-        && (ttMove == MOVE_NONE || (PvNode && tte->depth() <= depth - 4 * OnePly))
+        &&  ttMove == MOVE_NONE
         && (PvNode || (!isCheck && ss->eval >= beta - IIDMargin)))
     {
         Depth d = (PvNode ? depth - 2 * OnePly : depth / 2);