Simplify pondering time management (#1899)

[stockfish] / src / material.cpp

diff --git a/src/material.cpp b/src/material.cpp
index d98eb125e4bb5f84c8ebda36b1d146b20f5fdb41..294744f4ed7de6da34ccdea53acca82d813d13f5 100644 (file)
--- a/src/material.cpp
+++ b/src/material.cpp
@@ -2,7 +2,7 @@
   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) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -34,12 +34,12 @@ namespace {
   constexpr int QuadraticOurs[][PIECE_TYPE_NB] = {
     //            OUR PIECES
     // pair pawn knight bishop rook queen
-    {1443                               }, // Bishop pair
-    {  40,    0                         }, // Pawn
-    {  32,  255, -67                    }, // Knight      OUR PIECES
+    {1438                               }, // Bishop pair
+    {  40,   38                         }, // Pawn
+    {  32,  255, -62                    }, // Knight      OUR PIECES
     {   0,  104,   4,    0              }, // Bishop
-    { -26,   -2,  47,   105,  -221      }, // Rook
-    {-189,   24, 117,   133,  -134, -10 }  // Queen
+    { -26,   -2,  47,   105,  -208      }, // Rook
+    {-189,   24, 117,   133,  -134, -6  }  // Queen
   };
 
   constexpr int QuadraticTheirs[][PIECE_TYPE_NB] = {
@@ -53,8 +53,6 @@ namespace {
     {  97,  100, -42,   137,  268,    0 }  // Queen
   };
 
-  constexpr int PawnCount[] = { 0, 304,  144, -320, -560, -704, -672, -464, -320 };
-
   // Endgame evaluation and scaling functions are accessed directly and not through
   // the function maps because they correspond to more than one material hash key.
   Endgame<KXK>    EvaluateKXK[] = { Endgame<KXK>(WHITE),    Endgame<KXK>(BLACK) };
@@ -79,7 +77,7 @@ namespace {
   bool is_KQKRPs(const Position& pos, Color us) {
     return  !pos.count<PAWN>(us)
           && pos.non_pawn_material(us) == QueenValueMg
-          && pos.count<QUEEN>(us)  == 1
+          && pos.count<QUEEN>(us) == 1
           && pos.count<ROOK>(~us) == 1
           && pos.count<PAWN>(~us) >= 1;
   }
@@ -91,7 +89,7 @@ namespace {
 
     constexpr Color Them = (Us == WHITE ? BLACK : WHITE);
 
-    int bonus = PawnCount[pieceCount[Us][PAWN]];
+    int bonus = 0;
 
     // Second-degree polynomial material imbalance, by Tord Romstad
     for (int pt1 = NO_PIECE_TYPE; pt1 <= QUEEN; ++pt1)