Hashi-o-kakero (21x21 hard)
2
5
2
4
4
2
5
1
3
4
3
4
1
1
1
5
4
3
3
1
2
2
1
3
4
2
2
4
4
4
6
5
3
2
1
3
4
2
3
1
2
2
3
2
1
3
4
2
2
5
3
5
2
5
2
1
4
5
5
1
4
4
3
4
2
2
3
2
2
3
6
3
2
3
5
2
2
4
2
2
3
Select board size and difficulty:
9 x 9 easy | 9 x 9 medium | 9 x 9 hard
11 x 11 easy | 11 x 11 medium | 11 x 11 hard
13 x 13 easy | 13 x 13 medium | 13 x 13 hard
17 x 17 easy | 17 x 17 medium | 17 x 17 hard
21 x 21 easy | 21 x 21 medium | 21 x 21 hard
9 x 9 easy | 9 x 9 medium | 9 x 9 hard
11 x 11 easy | 11 x 11 medium | 11 x 11 hard
13 x 13 easy | 13 x 13 medium | 13 x 13 hard
17 x 17 easy | 17 x 17 medium | 17 x 17 hard
21 x 21 easy | 21 x 21 medium | 21 x 21 hard