Order bad captures by SEE value

[stockfish] / src / position.h

diff --git a/src/position.h b/src/position.h
index ed9b8edcc6ff0ac7c20e8ce951060b0be0c83ab9..aa7c7ab8b78754e19728afd59512c7deff736ec5 100644 (file)
--- a/src/position.h
+++ b/src/position.h
@@ -91,6 +91,7 @@ struct StateInfo {
   int castleRights, rule50;
   Square epSquare;
   Value mgValue, egValue;
+  Value npMaterial[2];
 
   PieceType capture;
   Bitboard checkersBB;
@@ -353,7 +354,6 @@ private:
   Color sideToMove;
   int gamePly;
   Key history[MaxGameLength];
-  Value npMaterial[2];
   File initialKFile, initialKRFile, initialQRFile;
   StateInfo startState;
   StateInfo* st;
@@ -494,10 +494,6 @@ inline Bitboard Position::bishops_and_queens(Color c) const {
   return bishops_and_queens() & pieces_of_color(c);
 }
 
-inline Bitboard Position::sliders_of_color(Color c) const {
-  return sliders() & pieces_of_color(c);
-}
-
 inline int Position::piece_count(Color c, PieceType pt) const {
   return pieceCount[c][pt];
 }
@@ -538,14 +534,14 @@ inline Bitboard Position::pawn_attacks(Color c, Square s) const {
   return StepAttackBB[piece_of_color_and_type(c, PAWN)][s];
 }
 
-template<>
-inline Bitboard Position::piece_attacks<PAWN>(Square s) const {
-  return StepAttackBB[piece_of_color_and_type(opposite_color(sideToMove), PAWN)][s];
+template<PieceType Piece> // Knight and King
+inline Bitboard Position::piece_attacks(Square s) const {
+  return StepAttackBB[Piece][s];
 }
 
 template<>
-inline Bitboard Position::piece_attacks<KNIGHT>(Square s) const {
-  return StepAttackBB[KNIGHT][s];
+inline Bitboard Position::piece_attacks<PAWN>(Square s) const {
+  return StepAttackBB[piece_of_color_and_type(opposite_color(sideToMove), PAWN)][s];
 }
 
 template<>
@@ -563,11 +559,6 @@ inline Bitboard Position::piece_attacks<QUEEN>(Square s) const {
   return piece_attacks<ROOK>(s) | piece_attacks<BISHOP>(s);
 }
 
-template<>
-inline Bitboard Position::piece_attacks<KING>(Square s) const {
-  return StepAttackBB[KING][s];
-}
-
 inline Bitboard Position::checkers() const {
   return st->checkersBB;
 }
@@ -651,7 +642,7 @@ inline Value Position::eg_value() const {
 }
 
 inline Value Position::non_pawn_material(Color c) const {
-  return npMaterial[c];
+  return st->npMaterial[c];
 }
 
 inline Phase Position::game_phase() const {