X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.h;h=2554f3fbd8a122bfefb7e5abbd833fe71eba955d;hp=2e08b550482a47b8686b579d27fb6106e6af273d;hb=651ec3b31ee68db50f38ccd8fcdedbd6673cd9ed;hpb=45e254a0a0d4cbc574e5a65bd4584036b01091b6

diff --git a/src/search.h b/src/search.h
index 2e08b550..2554f3fb 100644
--- a/src/search.h
+++ b/src/search.h
@@ -1,8 +1,6 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2017 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2004-2020 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
@@ -31,13 +29,17 @@ 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
 /// its own array of Stack objects, indexed by the current ply.
 
 struct Stack {
   Move* pv;
-  PieceToHistory* contHistory;
+  PieceToHistory* continuationHistory;
   int ply;
   Move currentMove;
   Move excludedMove;
@@ -45,6 +47,7 @@ struct Stack {
   Value staticEval;
   int statScore;
   int moveCount;
+  bool inCheck;
 };
 
 
@@ -65,6 +68,9 @@ struct RootMove {
   Value score = -VALUE_INFINITE;
   Value previousScore = -VALUE_INFINITE;
   int selDepth = 0;
+  int tbRank = 0;
+  int bestMoveCount = 0;
+  Value tbScore;
   std::vector<Move> pv;
 };
 
@@ -77,19 +83,19 @@ typedef std::vector<RootMove> RootMoves;
 struct LimitsType {
 
   LimitsType() { // Init explicitly due to broken value-initialization of non POD in MSVC
-    nodes = time[WHITE] = time[BLACK] = inc[WHITE] = inc[BLACK] =
-    npmsec = movestogo = depth = movetime = mate = perft = infinite = 0;
+    time[WHITE] = time[BLACK] = inc[WHITE] = inc[BLACK] = npmsec = movetime = TimePoint(0);
+    movestogo = depth = mate = perft = infinite = 0;
+    nodes = 0;
   }
 
   bool use_time_management() const {
-    return !(mate | movetime | depth | nodes | perft | infinite);
+    return time[WHITE] || time[BLACK];
   }
 
   std::vector<Move> searchmoves;
-  int time[COLOR_NB], inc[COLOR_NB], npmsec, movestogo, depth,
-      movetime, mate, perft, infinite;
+  TimePoint time[COLOR_NB], inc[COLOR_NB], npmsec, movetime, startTime;
+  int movestogo, depth, mate, perft, infinite;
   int64_t nodes;
-  TimePoint startTime;
 };
 
 extern LimitsType Limits;