return semiopenFiles[c] & (leftSide ? (1 << f) - 1 : ~((1 << (f + 1)) - 1));
}
+ int pawn_span(Color c) const {
+ return pawnSpan[c];
+ }
+
int pawns_on_same_color_squares(Color c, Square s) const {
return pawnsOnSquares[c][!!(DarkSquares & s)];
}
int minKPdistance[COLOR_NB];
int castlingRights[COLOR_NB];
int semiopenFiles[COLOR_NB];
+ int pawnSpan[COLOR_NB];
int pawnsOnSquares[COLOR_NB][COLOR_NB]; // [color][light/dark squares]
};