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