20x15 puzzle
Time:
1
6
2
1
5
2
7
2
6
1
5 4 3 3 2 2 3 5 6 5 7 8 10 11
2
 
1
2
3
4  2  4
4  7
8  8
9  9
9  9
5  6
3  4
1  2
2
3  1
2  1
You might wish to visit the archives, if you want more.