20x15 puzzle
Time:
1
6
1
6
1
6
2
6
1
6
1
7
1
3
1 7 6 6 1
5
4 1
5
1
2
2
2
3
2
2
6
6 1
6
1
6
 
 
 
 
1
6  4
2  2
1
1  1  1
6  3  5
6  4  7
6  12
14  4
7  12
7  12
You might wish to visit the archives, if you want more.