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