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1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. g4!?
A popular continuation in the last years.

   
7...h6!?
Black prefers not to take the Greek gift.
8. Bd2
After 8. Rg1 b5!? 9. cxb5 c5 10. Bd2 Bb7 11. O-O-O Rc8 (11...Ne4) 12. Kb1 Ne4 13. Be1 O-O 14. h4 Qe7 (14...cxd4) 15. Bd3 cxd4 16. exd4 f5 17. Qe2 (17. gxf5) 17...fxg4 18. Rxg4 Qf7 19. Bxe4 (19.Bd2) 19...dxe4 20. Nd2 Qf5 21. Ka1, Paprocki, J - Korobov, A, Krakow op-A 2005, Black could win quickly with 21...Rxc3! 22. bxc3 (22. Nxe4 Bxe4 23. Rxe4 Nf6 24. bxc3 Nxe4) 22...e3! 23. fxe3 (23. Nc4 Bf3 24. Rxg7+ Kxg7 25. Qxe3 Bxd1 26. Nxd6 Qf4) 23...Qc2 24. Rb1 Qxc3+ 25. Rb2 Ba3 26. Nb1 Bxb2+ 27. Qxb2 Qxe1.
8...b5!?
A fine novelty. Since White would like to castle long, Black begins his operations on the queenside and centre.

   
9. cxb5
If 9. cxd5 then 9...exd5 10. Bd3 (10. Nxb5? cxb5 11. Qc6 Qb6 or 10. e4 dxe4 11. Nxe4 O-O 12. Nxd6 Qe7+ 13. Be2 Qxd6 14. Rg1 Re8 15. Kf1 Nb6) 10...Bb7 with equality. Or 9. c5 Bc7 10. h3 a5.
9...c5 10. g5
Black also has counterplay after 10. Rg1 Bb7 or 10. h3 Bb7.
10...hxg5 11. Nxg5 Bb7
Now Black gets sufficient compensation for the pawn.
12. O-O-O Rc8 13. Rg1

   
13...Qe7
In the case of 13...Rxh2 White can continue 14. Nxe6 (14. Nxf7 Kxf7 15. Qg6+ Kf8 16. Qxg7+ Ke8 17. Qg6+) 14...fxe6 15. Qg6+ Ke7 16. Qxg7+ Ke8 with perpetual check.
14. h3 Nb6 15. Kb1
Or 15. dxc5 Bxc5 16. Nf3 (16. Kb1 d4 17. exd4 Bxd4) 16...Bb4 17. Rxg7 Ne4 18. Ne5 Bxc3 19. Bxc3 Nxc3 20. bxc3 Qf6 21. Rxf7 Qxe5 22. Qg6 Qxc3+ 23. Kb1 Qb4+.
15...Kf8 16. Qd3 Nc4 17. Bc1 cxd4 18. exd4 Rh4 19. Nf3 Rh8
19...Rh5 is playable too.
20. Ng5 Rh4 21. Nf3 Rh8

   
22. Nd2!?
White wants to fight.
22...Nxd2+ 23. Rxd2 Ne4 24. Rc2 Bb4 25. Nxe4 Rxc2 26. Kxc2 dxe4 27. Qg3 g6 28. Bg5 Qd6 29. a3
Here White could try 29. Bf6!? Qxg3 30. fxg3 Rh7.
29...Qxg3 30. fxg3 Be7 31. Be3 Kg7 32. h4

   
32...g5!
Very strong. Black advances his pawns.
33. Be2 f5! 34. Kd2 Bd5 35. hxg5 Kg6 36. a4?!
White could seize the open file with 36. Rc1 that is more logical, 36...Rh3 37. Bf4 Bxg5 with equality.

   
36...Rc8
36...Bb4+!? is more precise, 37. Kc1 Ba2 38. Bd2 Rc8+ 39. Bc3 Be7 40. Kc2 Bd5 41. Rh1 Bxg5 and Black has a small advantage.
37. Bf4
Weaker than 37. Bd1 Bxg5 38. Bxg5 Kxg5 39. b3 with more or less equal chances.
37...Bb4+ 38. Ke3 Rc2 39. b3?
Correct is 39. Rb1 Bc4 40. Bxc4 Bd2+ 41. Ke2 Bxf4+ 42. Kd1.

   
39...Rb2?!
Black could suddenly checkmate with 39...e5! 40. Bxe5 (40. dxe5 Bc5) 40...Bd2+ 41. Kf2 e3+ 42. Kf1 Rc1+ 43. Bd1 Bf3 44. d5 Rxd1.
40. Kf2 Rxb3
Black has a clear edge after 40...Bc3!? 41. Be3 Bxb3 42. Rc1 Bxa4 43. Rxc3 Bxb5 44. Bf4 Rxe2+ 45. Kg1 a6.
41. Rc1 Bc3 42. Be3 Ra3 43. Rh1 Ra2 44. Rh6+ Kg7 45. Kf1 Ra1+ 46. Kg2

   
46...Bd2!?
46...Rxa4 deserves attention.
47. Kf2 Be1+ 48. Kg2 Ra2 49. Kf1
49. Bf4 is interesting.
49...Bxg3 50. Bh5 Bc4+
Or 50...f4.
51. Kg1 Be2 52. Rg6+ Kf8 53. Rf6+ Ke7 54. Rf7+ Ke8!
If Black plays 54...Kd6? then White wins with 55. Bxe2 Rxe2 56. g6 Rxe3 57. g7 Bh4 58. g8Q Rg3+ 59. Qxg3+ Bxg3 60. a5.
55. Bg6 Kd8
Winning.
56. d5 Bf3 57. Bd4

   
57...e3! 58. d6 Rg2+ 59. Kf1
Or 59. Kh1 Rh2+ 60. Kg1 Rh1, checkmate.
59...e2+
Checkmate in the ending.
White resigned. 0-1

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