23x15 puzzle
Time:
15 15 15 15 4
8
3
7
2
7
2
7
2
7
2
7
2
7
2
6
1
6
1
6
2
6
2
6
2
6
4
7
6
8
15 15 15 15
23
12  9
6  6
5  6
4  5
4  5
4  4
5  5
11  6
23
23
23
23
23
23
You might wish to visit the archives, if you want more.