[Event "Merida Ruy Lopez GM"]
[Round "4"]
[Site "Merida"]
[Date "2008.04.08"]
[White "Koneru, Humpy"]
[WhiteElo "2612"]
[Black "Hou, Yifan"]
[BlackElo "2527"]
[Result "1/2-1/2"]
[ECO "A40"]
[Opening "Queen's Pawn Game (including English Defence, Englund Gambit, Queen's Knight Defence, Polish Defence and Keres Defence)"]
 1. d4   e6
 2. c4   Nf6
 3. g3   d5
 4. Bg2  Be7
 5. Nf3  O-O
 6. Qc2  c5
 7. O-O  cxd4
 8. Nxd4 e5
 9. Nf5  d4
10. Nxe7+ Qxe7
11. b4   Be6
12. Nd2  Na6
13. a3   Rac8
14. Qd3  Qd7
15. Bb2  Bh3
16. e3   Bxg2
17. Kxg2 b5
18. c5   Nc7
19. exd4 Ne6
20. Rfe1 Ng5
21. f3   exd4
22. Re5  Ne6
23. Kg1  a5
24. f4   Rfd8
25. Nf3  Ng4
26. Re2  h6
27. f5   Ng5
28. Nxg5 hxg5
29. Re4  Nh6
30. g4   axb4
31. axb4 f6
32. Rae1 Nf7
33. Qb3  Re8
34. Bxd4 Rxe4
35. Rxe4 Re8
36. Rxe8+ Qxe8
37. Qe6  Qd8
38. Qe4  Qc7
39. Qe8+ Kh7
40. Qxb5 Qf4
41. Qd3  Qxg4+
42. Kh1  Qf4
43. b5   g4
44. h4   g3
45. Kg2  Qxh4
46. Bg1  Ng5
47. Qxg3 
1/2-1/2