tviigg.

bench 3588383
Vizvezdenec · Jul 10, 2019 · ec7f43e · ec7f43e
1 parent 896da0b
commit ec7f43e
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/search.cpp b/src/search.cpp
@@ -1036,6 +1036,13 @@ namespace {
               // Prune moves with negative SEE (~10 Elo)
               if (!pos.see_ge(move, Value(-29 * lmrDepth * lmrDepth)))
                   continue;
+
+              if (type_of(movedPiece) == KING
+                  && !inCheck
+                  && type_of(move) == NORMAL
+                  && pos.castling_rights(us)
+                  && !pos.blockers_for_king(us))
+                  continue;
           }
           else if ((!givesCheck || !extension)
                   && !pos.see_ge(move, -PawnValueEg * (depth / ONE_PLY))) // (~20 Elo)
@@ -1063,7 +1070,6 @@ namespace {
       // re-searched at full depth.
       if (    depth >= 3 * ONE_PLY
           &&  moveCount > 1 + 3 * rootNode
-          && !inCheck
           && (  !captureOrPromotion
               || moveCountPruning
               || ss->staticEval + PieceValue[EG][pos.captured_piece()] <= alpha))