PIECE_COLOUR       63 src/board.cpp                 colour = PIECE_COLOUR(piece);
PIECE_COLOUR       71 src/board.cpp                 colour = PIECE_COLOUR(piece);
PIECE_COLOUR      415 src/move_do.cpp    colour = PIECE_COLOUR(piece);
PIECE_COLOUR      544 src/move_do.cpp    colour = PIECE_COLOUR(piece);
PIECE_COLOUR      677 src/move_do.cpp    colour = PIECE_COLOUR(piece);
PIECE_COLOUR       71 src/see.cpp       att = PIECE_COLOUR(piece);
PIECE_COLOUR      320 src/see.cpp             alist_add(alists->alist[PIECE_COLOUR(piece)],sq,board);