21x15 puzzle
Time:
7
1
1
5
1
4
1
4
1
5
2
6
2
6
1
5
1
5
1
5
1
4
1
4
4 3 3 1
1
1
5 1
2
2
2
7 2
3
 
 
 
 
 
2
12
1  1
2  2  4
17  3
15  1  1
15  1  1
13  6
6  5
1  2
You might wish to visit the archives, if you want more.