#define BOARD_RGHT (gameInfo.boardWidth + gameInfo.holdingsWidth)
#define CASTLING (BOARD_RANKS-1) /* [HGM] hide in upper rank */
#define VIRGIN (BOARD_RANKS-2) /* [HGM] pieces not moved */
+#define CHECK_COUNT CASTLING][(BOARD_FILES-8) /* [HGM] in upper rank */
#define LAST_TO CASTLING][(BOARD_FILES-7) /* [HGM] in upper rank */
#define TOUCHED_W CASTLING][(BOARD_FILES-6) /* [HGM] in upper rank */
#define TOUCHED_B CASTLING][(BOARD_FILES-5) /* [HGM] in upper rank */