void EditBookEvent P((void));
Boolean DisplayBook P((int moveNr));
void SaveToBook P((char *text));
+void HoverEvent P((int hiX, int hiY, int x, int y));
int PackGame P((Board board));
Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen));
void ApplyMove P((int fromX, int fromY, int toX, int toY, int promoChar, Board board));