Joona tweaks of piece values

[stockfish] / src / value.h

diff --git a/src/value.h b/src/value.h
index 29fcf5fb99f153b9ea3a512cd1dfdd1fe1e84fd7..cec4a439320b28588ff8d4bd523f9fdf2e22da42 100644 (file)
--- a/src/value.h
+++ b/src/value.h
@@ -1,7 +1,7 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008 Marco Costalba
+  Copyright (C) 2008-2009 Marco Costalba
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -36,7 +36,8 @@ enum ValueType {
   VALUE_TYPE_NONE = 0,
   VALUE_TYPE_UPPER = 1,  // Upper bound
   VALUE_TYPE_LOWER = 2,  // Lower bound
-  VALUE_TYPE_EXACT = 3   // Exact score
+  VALUE_TYPE_EXACT = 3,  // Exact score
+  VALUE_TYPE_EVAL  = 4   // Evaluation cache
 };
 
 
@@ -58,17 +59,19 @@ enum Value {
 /// Important: If the material values are changed, one must also
 /// adjust the piece square tables, and the method game_phase() in the
 /// Position class!
-
-const Value PawnValueMidgame = Value(0xCC);
-const Value PawnValueEndgame = Value(0x100);
-const Value KnightValueMidgame = Value(0x340);
-const Value KnightValueEndgame = Value(0x340);
-const Value BishopValueMidgame = Value(0x340);
-const Value BishopValueEndgame = Value(0x340);
-const Value RookValueMidgame = Value(0x505);
-const Value RookValueEndgame = Value(0x505);
-const Value QueenValueMidgame = Value(0xA00);
-const Value QueenValueEndgame = Value(0xA00);
+///
+/// Values modified by Joona Kiiski
+
+const Value PawnValueMidgame   = Value(0x0C6);
+const Value PawnValueEndgame   = Value(0x102);
+const Value KnightValueMidgame = Value(0x331);
+const Value KnightValueEndgame = Value(0x34E);
+const Value BishopValueMidgame = Value(0x344);
+const Value BishopValueEndgame = Value(0x359);
+const Value RookValueMidgame   = Value(0x4F6);
+const Value RookValueEndgame   = Value(0x4FE);
+const Value QueenValueMidgame  = Value(0x9D9);
+const Value QueenValueEndgame  = Value(0x9FE);
 
 const Value PieceValueMidgame[17] = {
   Value(0),
@@ -90,10 +93,10 @@ const Value PieceValueEndgame[17] = {
   Value(0), Value(0), Value(0)
 };
 
-/// Bonus for having the side to move
+/// Bonus for having the side to move (modified by Joona Kiiski)
 
-const Value TempoValueMidgame = Value(50);
-const Value TempoValueEndgame = Value(20);
+const Value TempoValueMidgame = Value(48);
+const Value TempoValueEndgame = Value(21);
 
 
 ////