X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=ba13680cecbb1e4ade4f3a6264218a2d9679e740;hp=7c839dfc89f52ec62d33b0ae98ac8654688e4759;hb=34f67c57223d73ad40d583ccc033c75eb0df2453;hpb=2deb08a52946379d4cebb1082e5d740d1d027122

diff --git a/src/search.cpp b/src/search.cpp
index 7c839dfc..ba13680c 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -939,15 +939,11 @@ namespace {
             }
     }
 
-    // Step 11. Internal iterative deepening (~1 Elo)
-    if (depth >= 7 && !ttMove)
-    {
-        search<NT>(pos, ss, alpha, beta, depth - 7, cutNode);
-
-        tte = TT.probe(posKey, ttHit);
-        ttValue = ttHit ? value_from_tt(tte->value(), ss->ply, pos.rule50_count()) : VALUE_NONE;
-        ttMove = ttHit ? tte->move() : MOVE_NONE;
-    }
+    // Step 11. If the position is not in TT, decrease depth by 2
+    if (   PvNode
+        && depth >= 6
+        && !ttMove)
+        depth -= 2;
 
 moves_loop: // When in check, search starts from here