Ian comments: "Coming at the end of a very tough but enjoyable congress this was an opportunity missed. I would like to think if this occurred in the first round I would have found the continuation! I played 32. Qh4, retaining an advantage but eventually letting Black off with a perpetual check.
32. Nxe7+! was the killer move.
If 32. ... Kg7, 33. Rxh7+! Kxh7, 34. Qg6+ Kh8 35. Qg8#
If 32. ... Kf8, 33. Nxg6+ hxg6 (33. ... Kg7, 34. Qd4+ Kxg6 35. Qg4+ Kf6, 36. Qh4+ Kg7, 37. Qxh7+ Kf8, 38. Qg6 transposes to same position. 38. Qh8+ also wins easily.) 34. Qxg6 Ke7, 35. Re1+ Kf8 (else the rook drops with a trivial win) but now 36. Qh6+ and it is mate in six or sooner.
If 32. ... Rxe7, 33. Qxe7 +-
Complicated lines but calculable; must be getting old!"
Thanks for this Ian - more games and positions are always welcome.