1 #include "types.h"
2 
liberte(play_board,i,j)3 int liberte(play_board,i,j)
4 
5 board play_board;
6 int i,j;
7 
8 {
9 int a;
10 
11 a =!play_board[i-1][j]+!play_board[i+1][j];
12 a+=!play_board[i-1][j-1]+!play_board[i+1][j-1];
13 a+=!play_board[i-1][j+1]+!play_board[i+1][j+1];
14 a+=!play_board[i][j-1]+!play_board[i][j+1];
15 
16 return(a);
17 };
18