7. O 18, N 18, Q 17, R 18, P 18, N 17, R 17, O 19, R 19, P 19, T 17 or O 18, P 18, R 18, or O 18, R 18, P 18.
8. S 2, R 1, S 1.
9. B 1, A 2, B 2.
10. A 17, B 19, B 18, A 14, C 19, A 16, A 19, B 17, B 16.
11. T 16, T 18, T 14 or T 16, S 12, T 18.
12. S 5, S 6, T 5.
13. C 1.
14. B 19.
15. S 18, S 19, S 13, T 18, S 15, T 17, T 14 or S 18, S 13, T 16.
16. S 5, T 5, T 4, S 4, T 2, T 6, Q 2, or S 5, T 5, T 4, S 4, T 2, Q 2, S 3, T 4, T 6, T 4, T 5, S 1, S 8.