unsigned int get_box_value(int y, int x, unsigned int pawn_array[board_size][board_size]);
int** set_pawn(int y, int x, unsigned int type, unsigned int pawn_array[board_size][board_size]);
unsigned int get_box_value(int y, int x, unsigned int pawn_array[board_size][board_size]);
int** set_pawn(int y, int x, unsigned int type, unsigned int pawn_array[board_size][board_size]);