And the bronze medal goes to

GM Surya Ganguly gave a very entertaining lecture at the Canberra Chess Club just after this years Doeberl Cup. During the talk the topic of 'Best Moves of All Time' came up, in the context of a very famous Shirov ending. This particular move wasn't in my top 3, although it was fairly high up.
What is in my top 3 are two games I have posted about previously, plus the one below. My absolute favourite moves is Rashid Nezhmetdinov's 12.Qxf6 followed by Spassky's 14. ... Rh1 But coming in in third place is Vassily Ivanchuk's 21.Qg7 against Alexei Shirov


Ivanchuk,Vassily (2735) - Shirov,Alexei (2690) [D44]
Hoogovens Wijk aan Zee (3), 1996

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. exf6 Bb7 12. g3 c5 13. d5 Qb6 14. Bg2 O-O-O 15. O-O b4 16. Na4 Qb5 17. a3 exd5 18. axb4 cxb4 19. Be3 Nc5 20. Qg4+ Rd7 21. Qg7 Bxg7 22. fxg7 Rg8 23. Nxc5 d4 24. Bxb7+ Rxb7 25. Nxb7 Qb6 26. Bxd4 Qxd4 27. Rfd1 Qxb2 28. Nd6+ Kb8 29. Rdb1 Qxg7 30. Rxb4+ Kc7 31. Ra6 Rb8 32. Rxa7+ Kxd6 33. Rxb8 Qg4 34. Rd8+ Kc6 35. Ra1 1-0