bool move(int tile)
{
    int blank;
    for (int i = 0; i < d; i++)
   {
        for (int j = 0; j < d; j++)
        {
            if(board[i][j] == 0)
            {
                blank = board[i][j];
            }
            if(tile == board[i-1][j] || board[i+1][j] || board[i][j-1] || board[i][j+1])
            {
                int temp = tile;
                tile = blank;
                blank = temp;
                return true;

            }
            else
            {
                return false;
            }
        }
   }
   return 0;
}