20
19 16 18 14 15 17 20 13 12 11 
17 15 18 12 16 14 13 11 20 19 
12 20 19 15 18 16 14 17 13 11 
13 14 12 17 18 11 20 16 15 19 
19 17 18 14 11 20 16 12 13 15 
16 15 19 11 17 12 14 20 18 13 
20 14 13 15 17 16 18 12 11 19 
19 11 20 16 17 18 15 13 14 12 
19 11 17 16 20 14 13 12 18 15 
20 12 13 14 11 18 15 17 19 16 
7 6 2 1 8 3 9 4 10 5 
1 9 10 8 5 6 2 4 7 3 
5 10 1 7 3 2 8 9 6 4 
10 9 6 5 8 1 2 3 4 7 
4 8 2 3 9 7 10 5 1 6 
2 4 8 9 10 6 1 3 7 5 
5 3 1 4 8 2 6 9 7 10 
1 9 5 7 3 6 10 8 2 4 
5 10 8 1 6 2 4 9 7 3 
4 3 6 5 10 1 8 9 7 2 
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forbidden 3 17
forbidden 3 18
forbidden 3 19
forbidden 4 11
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forbidden 6 12
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forbidden 9 11
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