30
25 24 28 21 30 29 16 17 26 22 19 20 27 23 18 
17 23 20 19 16 25 30 27 29 22 18 24 21 28 26 
29 18 16 25 24 27 20 22 21 30 23 26 17 28 19 
28 20 19 26 30 27 17 16 25 21 24 22 18 29 23 
18 21 24 30 28 22 19 29 16 23 17 25 27 26 20 
30 27 26 21 16 22 17 18 19 28 24 29 23 20 25 
18 23 16 29 25 17 19 22 30 21 24 20 27 28 26 
16 18 17 20 29 21 22 23 28 30 19 25 27 24 26 
25 19 28 23 30 21 17 16 22 20 18 24 27 29 26 
19 17 28 18 30 24 23 22 25 27 29 16 21 26 20 
21 22 20 26 29 30 17 19 18 16 24 23 27 28 25 
18 22 19 30 28 23 24 21 25 29 27 20 26 16 17 
19 26 20 29 21 27 17 23 24 16 25 18 22 30 28 
30 23 28 27 21 26 24 19 18 20 22 29 25 17 16 
28 24 18 30 20 17 29 21 25 27 23 26 22 19 16 
11 13 2 7 6 4 5 12 1 14 10 8 3 9 15 
14 5 11 8 7 3 6 13 10 4 2 9 1 12 15 
5 7 14 11 2 12 6 8 4 9 10 3 1 15 13 
3 1 10 14 5 11 8 6 12 7 2 4 9 15 13 
3 13 5 11 10 4 7 2 9 8 6 1 15 14 12 
6 4 9 14 2 11 3 5 7 15 8 13 1 10 12 
14 7 12 10 4 8 9 6 3 1 2 11 13 5 15 
14 9 2 10 7 15 6 4 1 3 12 5 13 8 11 
8 2 6 7 13 14 1 15 10 9 12 4 11 5 3 
13 1 15 2 3 10 9 11 7 6 12 4 5 14 8 
11 1 10 6 7 8 13 14 5 12 9 15 3 2 4 
9 2 11 6 1 12 3 5 15 8 14 10 7 4 13 
6 7 4 9 1 12 3 10 8 5 11 14 15 13 2 
13 2 9 15 5 12 4 8 1 6 14 11 7 3 10 
2 4 10 11 6 5 7 8 3 12 14 13 1 9 15 
forbidden 1 27
forbidden 1 30
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forbidden 2 28
forbidden 3 17
forbidden 3 18
forbidden 3 21
forbidden 3 24
forbidden 3 27
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forbidden 5 20
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forbidden 5 23
forbidden 6 22
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forbidden 8 19
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forbidden 9 24
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forbidden 10 17
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forbidden 13 17
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forbidden 15 16
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