TheAlchemist: Another spectacular prearranged draw (like, e.g. I Zaitsev vs Karpov, 1966)If white doesn't take the queen, but tries to play for the win with 10.Nxg4?, then black is maybe even better after 10...Nf6! 11.Nxf6 gxf6. The open g- and h-files spell disaster for white. Now there are a few possibilities:
12.f3 Bc5 13.Rf2 O-O-O 14.b4 Ba7 15.Na3 (15.Bb2 Qe3! 16.d4 Rh1! 17.Kxh1 Qxf2) Rh7!
12.g3 Bxg3!
12.e5 O-O-O 13.exd6?
(better is 13.Re1 Rdg8! 14.Re3 Qh7 15.Kf1 Qh1 16.Ke2 Qxg2 and I think that after 17.Qc2 it's a draw: 17...Rh1 18.Qf5 Kb8 19.exd6 Qf1 20.Kf3 Qg2 21.Ke2 etc.) Rdg8! 14.f3 Qh7 15.Re1 (15.Qe2 Qh2) Rxg2! 16.Kxg2 Qh2 17.Ke1 Rg8!
Maybe in the last line black can try 12...Bc5, but it also looks drawish after 13.Re1 Qh7 14.Kf1 Qd3 etc.
I'm not sure that all of this is accurate, but it seems that after 10...Nf6 black has good chances, white must find a lot of "only" moves to save himself.
So white had to take the draw, which was prearranged anyway, but we must admit, it's nonetheless nice.