13x20 puzzle
Time:
1
2
4
2
1
2
4
2
1
2
4
2
1
1
2
4
2
1
14
1
14
1
3
2
4
2
1
1
2
4
2
1
1
2
1
1
4
4
3
8
2
8
8
2
9
8
8
9
2
9
9
Opacity:
Original image
You might wish to visit the
archives
, if you want more.
