X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=7a16ef8cfc08af9da7ab9e374d5baf338a5d8026;hp=b154c6d9f647bb48cf3eb45d52689f0d0943e0be;hb=3984b8f8f0e1f53c737020c936f2a8372029545d;hpb=7efc39d6833a0d999a7bf2f9b5629ceb246accd2

diff --git a/src/search.cpp b/src/search.cpp
index b154c6d9..7a16ef8c 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -64,7 +64,7 @@ namespace {
   // Razor and futility margins
   constexpr int RazorMargin = 661;
   Value futility_margin(Depth d, bool improving) {
-    return Value((168 - 51 * improving) * d / ONE_PLY);
+    return Value(198 * (d / ONE_PLY - improving));
   }
 
   // Reductions lookup table, initialized at startup
@@ -1074,7 +1074,8 @@ moves_loop: // When in check, search starts from here
           &&  moveCount > 1 + 3 * rootNode
           && (  !captureOrPromotion
               || moveCountPruning
-              || ss->staticEval + PieceValue[EG][pos.captured_piece()] <= alpha))
+              || ss->staticEval + PieceValue[EG][pos.captured_piece()] <= alpha
+              || cutNode))
       {
           Depth r = reduction(improving, depth, moveCount);