1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 dxc4 5. Bg2 Bd7!?

An unusual variation but one that cannot be bad when it has been played by such greats as Karpov and Korchnoi.

6. Ne5 Bc6 7. Nxc6 Nxc6 8. Qa4 Bb4+

8... Qd7 is a more popular choice after the unusual 8.Qa4 9. e3 Nb4 10. Qxd7+ Kxd7 11. Na3 Nd3+ 12. Ke2 Bxa3 13. bxa3 Rab8 14. Bd2 b5 15. Ba5 h5 16. h4 Rhc8 17. Rhd1 Ke7 18. Rab1 c5 19. dxc5 Rxc5 20. Bc3 g6 21. e4 e5 22. f3 Nd7 23. Ke3 Rc6 24. Bf1 N7c5 25. f4 exf4+ 26. gxf4 Ra6 27. Bxd3 Nxd3 28. Rxd3 cxd3 29. Bb4+ Ke6 30. Kxd3 Rd8+ 31. Ke3 Rc6 32. Ba5 Rdc8 33. Rb3 Rd6 34. Rb1 a6 35. a4 bxa4 36. Rb7 Rc2 37. Bb4 Rb2 38. e5 Rd7 39. Rb6+ Kf5 40. a3 Rb3+ 0-1 Hulak,K (2510)-Kortschnoj, V (2635)/Sarajevo 1984

9. Bd2 Bxd2+ 10. Nxd2 O-O

After this move the comments were that black is already strategically lost in this position. 10... Nd5 is the other option.

11. Bxc6 bxc6 12. Qxc4 Rb8

12... Qd5 13. O-O Rfd8 14. Qxd5 Rxd5 15. Nb3 a5 1/2-1/2 Dorfman,J (2515)-Psakhis,L (2535)/Lvov 1984

13. b3 Qd6 14. Nf3 Ne4 15. O-O f5?

Fatally weakening the e5 square and the e6 pawn.

16. Rac1 Rb6 17. Qd3

Zatonskih plays it safe. The computer suggested line runs something like 17. Rc2 a5 18. Ne5 Rb4 19. Qxc6 Rxd4 20. Qxd6 cxd6 21. Nc6 Rd2 22. Rxd2 Nxd2 23. Rd1 Ne4 24. Nxa5

17... Qd5

17... Rd8!?

18. Ne5! Ng5

This move brought some remarks from the commentary team saying it would be a good shot in a one-minute game because of the mating threat on h3. However, despite the obvious one move threat, it is actually black's best move in a fairly difficult position.

19. f3! Nf7 20. Nxf7 Rxf7

The great white knight has been traded off but it brings little relief to the black position.

21. Rc5 Qd6 22. Rfc1 h5 23. Qe3 Rf6 24. Qe5 Qd7 25. Qf4 Rh6 26. Kh1 Qe7 27. h4 Qd7 28. R1c4 Rg6 29. Kh2 Kh7 30. Ra4 a6 31. Rac4

Zatonskih is in no rush and has systematically improved her position while black has to just sit and wait for white to find the best way to start mopping up pawns.

31... Rb5 32. Rxb5

32. Rxc6 allows unnecessary complications 32... e5! 33. Qc1!

32... axb5 33. Rc2 Qd5 34. Qe5

34. Qxc7? Qxd4

34... Qd7 35. e3 Qc8 36. Qc5 Qd8 37. Qxc6

Zatonskih finally starts taking the weak black pawns after careful and patient play. The rest of the game is simple for the Champion.

37... f4 38. exf4 Qxd4 39. Qxb5 Qe3 40. Qe2 Qb6 41. Qe4 Kh6 42. Re2 Qc5 43. Qe3 Qf5 44. Qd2 Rf6 45. Re5 Qb1 46. f5+ Kh7 47. fxe6 g6 48. Qe2 1-0 [Bird C.]