15x22 puzzle
Time:
12 12 12 12 11 10 9 9 8 9 10 10 10 10 10
 
 
 
 
 
 
 
 
 
 
4
5
6  5
8  6
15
15
15
15
15
15
15
15
You might wish to visit the archives, if you want more.