15x15 puzzle
Time:
5 5 7 7 6 2
3
1
2
3 4 1
7
3
7
8 3
4
3
4
3
4
 
1
1
2  1
4
2  6
5  4  1
6  3
5  7
6  8
15
15
 
 
 
You might wish to visit the archives, if you want more.