return 
[ [ [ 8, 8, 7, 3 ], [ 7, 5, 6, 3 ], [ 1, 2, 6, 4 ], [ 8, 3, 6, 5 ], 
      [ 7, 4, 6, 2 ], [ 2, 5, 4, 3 ], [ 1, 8, 5, 2 ], [ 1, 1, 4, 7 ] ] ];
