Upset or massacre?

Picking a first round game for publication from any big swiss is often a choice between upset or massacre. You either find some poor player in the lower half of the field who gets hammered by a GM/IM opponent, or you find some poor player in the top half of the field who blows up against a much lower rated opponent.

For the current Australian Open I've decided to feature the upset. As the event is being seeded on FIDE ratings, the gap between the two players doesn't look that great, but there was a gap of 43 places in the seedings between the two players. Surprisingly it was a tactical miscalculation by the higher seeded player that pretty much decided the game, but Alana still finished the game with a nice queen sac.

Vogel,Joerg (2069) - Chibnall,Alana (1807) [A62]

Australian Open NSLCC, Cammeray, NSW (1.17), 02.01.2011

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.g3 g6 7.Bg2 Bg7 8.Nf3 0-0 9.0-0 Re8 10.Re1 Na6 11.Nd2 Nc7 12.a4 a6 13.Nc4 Rb8 14.a5 Nb5 15.Bf4 Nh5 (D)

16.Nxb5 axb5 17.Nxd6 Nxf4 18.Nxe8 Nxg2 19.Nxg7 Nxe1 20.e4 Kxg7 21.Qxe1 Qe7 22.Qc3+ Kg8 23.Re1 Bd7 24.e5 Rc8 25.Ra1 b4 26.Qe3 Bb5 27.b3 c4 28.bxc4 Rxc4 29.Rd1 Rc3 30.Qb6 Be8 31.d6 Qxe5 32.Qxb7 Qe2 33.Rb1 Rc2 34.Qb6 Bc6 35.Qe3 b3 36.a6 Qxa6 37.Qxb3 Qe2 38.Rf1 Bf3 39.d7 Qxf1+ 0-1