Remove explicit moveCount pruning

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index be296443f3d635c7e90bc9d4a7b0c711ed41e3b4..f9579ae0ab4fac374a3f695ba629e20552f6a3fd 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -76,7 +76,7 @@ namespace {
   }
 
   constexpr int futility_move_count(bool improving, Depth depth) {
-    return (5 + depth * depth) * (1 + improving) / 2;
+    return (5 + depth * depth) * (1 + improving) / 2 - 1;
   }
 
   // History and stats update bonus, based on depth
@@ -1024,10 +1024,6 @@ moves_loop: // When in check, search starts from here
               && !givesCheck
               && (!pos.advanced_pawn_push(move) || pos.non_pawn_material(~us) > BishopValueMg))
           {
-              // Move count based pruning
-              if (moveCountPruning)
-                  continue;
-
               // Reduced depth of the next LMR search
               int lmrDepth = std::max(newDepth - reduction(improving, depth, moveCount), 0);