1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d6 6. Nc3 Nbd7 7. O-O e5 8. e4 exd4

Zatonskih had the position prior in a game played earlier this year 8... c6 9. h3 exd4 10. Nxd4 Qb6 11. Re1 Ne8 12. Nb3 a5 13. Be3 Qb4 14. Nd4 a4 15. a3 Qa5 16. f4 Nc5 17. Qc2 Bxd4 18. Bxd4 Nb3 19. Rad1 Nxd4 20. Rxd4 Be6 21. Bf1 f6 22. Kh2 Bf7 23. Rd2 Kg7 24. Qd1 Kg8 25. Kg2 Be6 26. Be2 Kg7 27. Rf1 f5 28. exf5 gxf5 29. Re1 Rf6 30. Bh5 Qc5 31. Nxa4 Qa5 32. Nc3 Qc5 33. Bxe8 Rxe8 34. Rxd6 Qxc4 35. Kh2 Rf7 36. Qd4+ Qxd4 37. Rxd4 Rfe7 38. Kg1 Bf7 39. Rxe7 Rxe7 40. Kf2 Bh5 41. Rd2 Kf7 42. Na4 Ke8 43. Nc5 Kf8 44. Nd7+ Kf7 45. Ne5+ Ke6 46. g4 fxg4 47. hxg4 Be8 48. Ke3 c5 49. Ke4 Ba4 50. f5+ Kf6 51. Kf4 Kg7 52. g5 Re8 53. f6+ Kf8 54. Rh2 1-0 Zatonskih,A (2462)-Armbrust,F (2321)/Caleta ENG 2009

9. Nxd4 Re8 10. h3 a6 11. Be3 c6

11... Rb8 is much more popular in this position.

12. Qc2 h5

A new idea in this position according to my database. Tsagaan likes to attack but this may be very premature in this particular position.

13. Rad1 Qe7 14. Rfe1 h4 15. g4

Blocking the position on the kingside and nullifying Tsagaan's potential attack.

15... Ne5 16. Qe2 c5 17. Nc2 Be6 18. Na3 Nfxg4!?

Played with little time left on her clock and termed as "desperation" by the commentary room. The sacrifice doesn't seem too bad in itself but maybe a little foolish to play with just a few minutes to make over 20 moves to reach the first time control.

19. hxg4 h3?

The obvious 19... Nxg4 should be tried, 20. Nc2 (20. Bf4!? Bd4 21. Rxd4 cxd4 22. Nd5) 20... Bxc3 21. bxc3 Ne5 and the c-pawn will also fall.

20. Bxh3 Qh4 21. Kg2 Nxg4 22. Rh1!

White's position is now totally defended and black doesn't have enough compensation for the sacrificed piece.

22... Bxc3 23. bxc3 Nxe3+ 24. Qxe3 Bxh3+ 25. Qxh3

25. Rxh3 is possible despite the apparent loss of the rook on d1, e.g. 25... Qg4+ 26. Kh2! Qxe4 (26... Qxd1 27. Qh6) 27. Rxd6

25... Qxe4+ 26. Qf3 Qe5 27. Rd5 Qg7 28. Nc2 Re6 29. Rd3 Rae8 30. Ne3 f5 31. Rb1 R8e7 32. Nd5 Re8 33. Rxb7 1-0 [Bird C.]