Tweak history initialization

[stockfish] / src / search.h

diff --git a/src/search.h b/src/search.h
index 6f9fbd0527702516daf0c39ee30224b57a87d295..f264bcae84027972c52511f6e02fe5c67eb0c889 100644 (file)
--- a/src/search.h
+++ b/src/search.h
@@ -1,6 +1,6 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
+  Copyright (C) 2004-2022 The Stockfish developers (see AUTHORS file)
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -31,9 +31,6 @@ class Position;
 
 namespace Search {
 
-/// Threshold used for countermoves based pruning
-constexpr int CounterMovePruneThreshold = 0;
-
 
 /// Stack struct keeps track of the information we need to remember from nodes
 /// shallower and deeper in the tree during the search. Each search thread has
@@ -49,10 +46,11 @@ struct Stack {
   Value staticEval;
   int statScore;
   int moveCount;
-  int distanceFromPv;
   bool inCheck;
   bool ttPv;
   bool ttHit;
+  int doubleExtensions;
+  int cutoffCnt;
 };
 
 
@@ -72,6 +70,7 @@ struct RootMove {
 
   Value score = -VALUE_INFINITE;
   Value previousScore = -VALUE_INFINITE;
+  Value averageScore = -VALUE_INFINITE;
   int selDepth = 0;
   int tbRank = 0;
   Value tbScore;