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