use strict;
use warnings;

             #row #col  #list of list of valid moves
our %hash = (0 => 0 => [[[1, 0],[2, 0],[3, 0],[4, 0],[5, 0],[6, 0],[7, 0]],
			[[0, 1],[0, 2],[0, 3],[0, 4],[0, 5],[0, 6],[0, 7]]]);