I played an unfamiliar opening with the help of my database and found a "novelty" on move 16 leading to this wild position. (previously 16...d5 was played in the only other game, Black went on to win but I think White made a mistake).

[Event "Online Chess"]
[Site "Chess.com"]
[Date "2009.04.09"]
[Round "1"]
[White "Bradwast88"]
[Black "RoundTower"]
[Result "*"]
[WhiteElo "2157"]
[BlackElo "2301"]
[TimeControl "1 in 3 days"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Qf3 b5 9. Bxf6 gxf6 10. e5 Bb7
11. Qh5 b4 12. Nxe6 Qc8 13. Nxf8 bxc3 14. Nxh7 fxe5 15. b3 Nd7 16. Bc4 Qc5 17. Qxf7+ Kd8 18. Ng5 Qe3+ 19. Kf1 Qd2 20. Ne6+ Kc8
21. Qg6 *



So here my opponent offered me a draw. What should I do?

Kick him in the nuts for offering a draw in a position like this.

Well don't accept it for sure. After not much analysis, I'd want to play Kb8 since Ka7 is just a massive threat and I just don't know how he can meet it.

I mean it's odd. He's practically in zugzwang. Knight can't move or d4 falls, queen can't leave the g file, the rooks have no useful squares.

Seriously, wtf.

Play on!

( I'd be interested in what you eventually decided to play. )

results:

I didn't find Kb8, which I now think is the only move to win (it's possible to draw in other lines).

I played on and played 21...e4? which is probably losing, and lost fairly quickly after 22. h4!? (totally missed the point of this move) Qxc2? 23. Qg7 and 24. Rh3.