Removing history condition

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 16c6b0f38f85ad9efd8c1eda19e4d7ca0ef4b105..6214fb5b39b564d12cf47699a2adb74c378c095d 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -786,8 +786,7 @@ namespace {
         &&  eval >= beta
         &&  eval < 29462 // smaller than TB wins
         && !(  !ttCapture
-             && ttMove
-             && thisThread->mainHistory[us][from_to(ttMove)] < 989))
+             && ttMove))
         return eval;
 
     // Step 9. Null move search with verification search (~35 Elo)
@@ -1506,9 +1505,7 @@ moves_loop: // When in check, search starts here
         futilityBase = std::min(ss->staticEval, bestValue) + 200;
     }
 
-    const PieceToHistory* contHist[] = { (ss-1)->continuationHistory, (ss-2)->continuationHistory,
-                                         (ss-3)->continuationHistory, (ss-4)->continuationHistory,
-                                          nullptr                   , (ss-6)->continuationHistory };
+    const PieceToHistory* contHist[] = {(ss-1)->continuationHistory, (ss-2)->continuationHistory};
 
     // Initialize a MovePicker object for the current position, and prepare
     // to search the moves. Because the depth is <= 0 here, only captures,