+unsigned int current_player(unsigned int round_count);
+unsigned int eval_winner(unsigned int nb_white, unsigned int nb_black);
+
+void zero_pawns(unsigned int pawn_array[board_size][board_size]);
+void init_pawns(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]);
+void set_pawn(int y, int x, unsigned int type, unsigned int pawn_array[board_size][board_size]);
+
+bool is_box_type(int y, int x, unsigned int pawn_array[board_size][board_size], unsigned int type);
+bool is_board_full(unsigned int pawn_array[board_size][board_size]);
+
+unsigned int count_pawns_type(unsigned int pawn_array[board_size][board_size], unsigned int type);
+
+unsigned int valid_shot(int y, int x, unsigned int current_player, unsigned int pawn_array[board_size][board_size]);
+
+void build_playable_shots_list(unsigned int current_player, struct shots_list_s* shots_list, unsigned int pawn_array[board_size][board_size]);
+void free_shots_list(struct shots_list_s* shots_list);
+