Tweak the connected[] array value for pawns on rank 5

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index b661d4817aa6c731174b15ff50460f5f6b6f87c9..8a6105711aae2720c112371c7f6ca3b2cf9a9532 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -818,9 +818,8 @@ namespace {
     }
 
     // Step 11. Internal iterative deepening (skipped when in check, ~2 Elo)
-    if (    depth >= 6 * ONE_PLY
-        && !ttMove
-        && (PvNode || ss->staticEval + 128 >= beta))
+    if (    depth >= 8 * ONE_PLY
+        && !ttMove)
     {
         Depth d = 3 * depth / 4 - 2 * ONE_PLY;
         search<NT>(pos, ss, alpha, beta, d, cutNode, true);