Fix bug in useless checks prune

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 1131fae7e01cfe329d2769e615b0bbb879cf2b84..572a8ac8b2e0b1fda34c6d1867d7069d9653a1ae 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -467,7 +467,7 @@ namespace {
         if (SkillLevelEnabled && depth == 1 + SkillLevel)
             skillBest = do_skill_level();
 
-        if (Options["Use Search Log"])
+        if (!Signals.stop && Options["Use Search Log"])
              pv_info_to_log(pos, depth, bestValue, elapsed_time(), &RootMoves[0].pv[0]);
 
         // Filter out startup noise when monitoring best move stability
@@ -1282,12 +1282,7 @@ split_point_start: // At split points actual search starts from here
           && !pos.is_capture_or_promotion(move)
           &&  ss->eval + PawnValueMidgame / 4 < beta
           && !check_is_dangerous(pos, move, futilityBase, beta, &bestValue))
-      {
-          if (ss->eval + PawnValueMidgame / 4 > bestValue)
-              bestValue = ss->eval + PawnValueMidgame / 4;
-
           continue;
-      }
 
       // Check for legality only before to do the move
       if (!pos.pl_move_is_legal(move, ci.pinned))