23x15 puzzle
Time:
4
2
4
3
4
2
4
1
4
1
4
1
4
1
4
2
4
1
4
3
4
3
4
4
4
4
3
4
3 2 2
1
1
1
2
1
2
1
1
1
1
2
1
1
5
1
5
20  2
17
15
13
 
5
6
5
3
1  1
4
2  3  3
8  2  2
2  1  2
4
You might wish to visit the archives, if you want more.