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