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