Illegal movements

[supermarcos]

Hi, guys!
Your webchess is very impressive, but I found an illegal movement I shouldn't be able to do, look this process:

1. d2 - d4  c7 - c5
   

2. d4 x c5 d7 - d5
3. c5 x d6 e7 - e6
4. d6 - d7 Ke8 - e7
5. d7 x c8=Q f7 - f6
6. Qc8 x d8 Ke7 - f7
7. Qd8 - d7 Bf8 - e7
8. Qd7 x e6 Kf7 - e8
9. Qe6 - d7 Ke8 - f8
10. Qd7 - c8 Kf8 - f7
11. Qd1 - d5 Kf7 - g6
12. Qd5 x b7 Be7 - d6
13. Qb7 x a8 Nb8 - c6
14. Qc8 x c6 Bd6 - e5
15. Qa8 x a7 Kg6 - f5
16. Qc6 - d7 Kf5 - e4
17. Qa7 - b7 Ke4 - f5 <<< I think is already chess mate, why the king is able to go here?
18. Qd7 x f5
    Thank you!
    I hope this helps.

[benjaminfisher]

You're right. There are a few bugs here as this is an unfinished project. Thanx for the heads up.