Fix a skill level problem: Don't allow move pruning at root node

Bench: 8918745 Resolves #231
2015-01-24 22:05:06 +01:00 · 2015-01-24 22:05:06 +01:00 · d8b3ad2208
parent ec36b8dea9
commit d8b3ad2208
1 changed files with 2 additions and 1 deletions
--- a/src/search.cpp
+++ b/src/search.cpp
@ -831,7 +831,8 @@ moves_loop: // When in check and at SpNode search starts from here
      newDepth = depth - ONE_PLY + extension;

      // Step 13. Pruning at shallow depth
-      if (   !captureOrPromotion
+      if (   !RootNode
+          && !captureOrPromotion
          && !inCheck
          && !dangerous
          &&  bestValue > VALUE_MATED_IN_MAX_PLY)