[Event "Merida Ruy Lopez GM"]
[Round "6"]
[Site "Merida"]
[Date "2008.04.10"]
[White "Hou, Yifan"]
[WhiteElo "2527"]
[Black "Zhang Pengxiang"]
[BlackElo "2640"]
[Result "0-1"]
[ECO "C80"]
[Opening "Ruy Lopez, Open (Tarrasch) Defence"]
 1. e4   e5
 2. Nf3  Nc6
 3. Bb5  a6
 4. Ba4  Nf6
 5. O-O  Nxe4
 6. d4   b5
 7. Bb3  d5
 8. dxe5 Be6
 9. Nbd2 Nc5
10. c3   Nxb3
11. Nxb3 Be7
12. Nbd4 Qd7
13. Bg5  Bc5
14. Nxc6 Qxc6
15. Nd4  Qd7
16. Be3  Bb6
17. Nxe6 fxe6
18. Bxb6 cxb6
19. Qd4  Qc6
20. f4   g6
21. Rad1 Rc8
22. Qf2  O-O
23. Rd4  Qb7
24. Rfd1 Rc7
25. R1d3 Rc4
26. a3   a5
27. h3   Qc7
28. Qe3  g5
29. Qg3  Rf5
30. Qg4  Qf7
31. fxg5 Rf1+
32. Kh2  Qf5
33. Qg3  Qf2
34. Qg4  Qg1+
35. Kg3  Rf5
36. Kh4  Qe1+
37. g3   Qxe5
38. Rd2  Qg7
39. Qh5  Qg6
40. Re2  Kf7
41. Kg4  e5
42. Rxc4 bxc4
43. h4   d4
44. cxd4 exd4
45. Qxg6+ hxg6
46. h5   d3
47. hxg6+ Kg8
48. Rd2  Re5
49. Kf3  a4
50. Rh2  b5
51. Rd2  Kg7
52. Kf2  Kxg6
53. Kf3  Kxg5
54. g4   Kf6
55. Kf2  Re8
56. Kf3  Ke5
0-1