Move IID up. Bench: 3053895

vondele · Apr 15, 2019 · 693a9dc · 693a9dc
1 parent 1594d15
commit 693a9dc
Showing 1 changed file with 7 additions and 10 deletions.
diff --git a/src/search.cpp b/src/search.cpp
@@ -602,6 +602,13 @@ namespace {
     excludedMove = ss->excludedMove;
     posKey = pos.key() ^ Key(excludedMove << 16); // Isn't a very good hash
     tte = TT.probe(posKey, ttHit);
+
+    if (depth >= 8 * ONE_PLY && (!ttHit || (ttHit && !tte->move())))
+    {
+        search<NT>(pos, ss, alpha, beta, depth - 7 * ONE_PLY, cutNode);
+        tte = TT.probe(posKey, ttHit);
+    }
+
     ttValue = ttHit ? value_from_tt(tte->value(), ss->ply) : VALUE_NONE;
     ttMove =  rootNode ? thisThread->rootMoves[thisThread->pvIdx].pv[0]
             : ttHit    ? tte->move() : MOVE_NONE;
@@ -825,16 +832,6 @@ namespace {
             }
     }
 
-    // Step 11. Internal iterative deepening (~2 Elo)
-    if (depth >= 8 * ONE_PLY && !ttMove)
-    {
-        search<NT>(pos, ss, alpha, beta, depth - 7 * ONE_PLY, cutNode);
-
-        tte = TT.probe(posKey, ttHit);
-        ttValue = ttHit ? value_from_tt(tte->value(), ss->ply) : VALUE_NONE;
-        ttMove = ttHit ? tte->move() : MOVE_NONE;
-    }
-
 moves_loop: // When in check, search starts from here
 
     const PieceToHistory* contHist[] = { (ss-1)->continuationHistory, (ss-2)->continuationHistory,