16x23 puzzle
Time:
19 19 2
4
11
2
2
4
2
7
2
7
4
2
3
3
1
6
1
2
5
1
7
1
1
2
1
1
4
1
1
3
1
1
1
1
2 1
1
 
3
10  1
1
7  4  1
9  4
2  8
5  5
9
13  1
6  1
2
4
4
3
3
4
4
4
5
5
5
5  1
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