[Event "Match"]
[Site "Sanya City CHN"]
[Date "2010.11.10"]
[Round "4"]
[White "Karpov,Ana"]
[Black "Hou Yifan"]
[Result "1/2-1/2"]
[WhiteElo "2619"]
[BlackElo "2591"]
[ECO "E37"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 Ne4 7.Qc2 c5 8.dxc5 Nc6
9.e3 Qa5+ 10.Bd2 Nxd2 11.Qxd2 dxc4 12.Qxa5 Nxa5 13.Rc1 b5 14.cxb6 Bb7 15.bxa7 Ke7
16.Ne2 Rxa7 17.Nc3 Rb8 18.Na2 Bd5 19.Nb4 Nc6 20.Nxc6+ Bxc6 21.Rxc4 Ba4 22.Rb4 Rxb4
23.axb4 Bb5 24.f3 Ra1+ 25.Kf2 Rb1  1/2-1/2

