![](https://www.hugochess.com/assets/img/canada.png)
[Event "National Capital op"]
[Site "Ottawa CAN"]
[Date "2009.12.06"]
[Round "5"]
[White "Gerzhoy, Leonid"]
[Black "Dunn, David"]
[Result "1-0"]
[WhiteElo "2577"]
[BlackElo "2156"]
[PlyCount "79"]
1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Nc3 Bf5 5.cxd5 cxd5 6.Qb3 Qb6 7.Nxd5 Nxd5 8.Qxd5 e6 9.Qb3 Nc6 10.Bd2 Bb4 11.e3 a5 12.Be2 Be4 13.O-O a4 14.Qd1 a3 15.b3 Qa5 16.Bxb4 Nxb4 17.Qd2 O-O 18.Rac1 Rfc8 19.Ne5 b5 20.Bf3 Bxf3 21.gxf3 Nc6 22.Qxa5 Nxa5 23.Nd7 f6 24.Nb6 Rxc1 25.Rxc1 Rb8 26.Nd7 Rd8 27.Rc7 Nxb3 28.axb3 a2 29.Ra7 Rxd7 30.Rxa2 Rd5 31.Rc2 Rg5+ 32.Kh1 Kf7 33.f4 Rd5 34.Rc7+ Kf8 35.Kg2 g5 36.fxg5 Rxg5+ 37.Kh1 Rf5 38.f4 Rh5 39.Kg2 Ke8 40.Rc5 1-0
[Site "Ottawa CAN"]
[Date "2009.12.06"]
[Round "5"]
[White "Gerzhoy, Leonid"]
[Black "Dunn, David"]
[Result "1-0"]
[WhiteElo "2577"]
[BlackElo "2156"]
[PlyCount "79"]
1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Nc3 Bf5 5.cxd5 cxd5 6.Qb3 Qb6 7.Nxd5 Nxd5 8.Qxd5 e6 9.Qb3 Nc6 10.Bd2 Bb4 11.e3 a5 12.Be2 Be4 13.O-O a4 14.Qd1 a3 15.b3 Qa5 16.Bxb4 Nxb4 17.Qd2 O-O 18.Rac1 Rfc8 19.Ne5 b5 20.Bf3 Bxf3 21.gxf3 Nc6 22.Qxa5 Nxa5 23.Nd7 f6 24.Nb6 Rxc1 25.Rxc1 Rb8 26.Nd7 Rd8 27.Rc7 Nxb3 28.axb3 a2 29.Ra7 Rxd7 30.Rxa2 Rd5 31.Rc2 Rg5+ 32.Kh1 Kf7 33.f4 Rd5 34.Rc7+ Kf8 35.Kg2 g5 36.fxg5 Rxg5+ 37.Kh1 Rf5 38.f4 Rh5 39.Kg2 Ke8 40.Rc5 1-0
[Event "National Capital op"]
[Site "Ottawa CAN"]
[Date "2009.12.06"]
[Round "5"]
[White "Gerzhoy, Leonid"]
[Black "Dunn, David"]
[Result "1-0"]
[WhiteElo "2577"]
[BlackElo "2156"]
[ECO "D13"]
[EventDate "2009.12.04"]
[PlyCount "79"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CAN"]
1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 Bf5 5. cxd5 cxd5 6. Qb3 Qb6 7. Nxd5
Nxd5 8. Qxd5 e6 9. Qb3 Nc6 10. Bd2 Bb4 11. e3 a5 12. Be2 Be4 13. O-O a4 14.
Qd1 a3 15. b3 Qa5 16. Bxb4 Nxb4 17. Qd2 O-O 18. Rac1 Rfc8 19. Ne5 b5 20.
Bf3 Bxf3 21. gxf3 Nc6 22. Qxa5 Nxa5 23. Nd7 f6 24. Nb6 Rxc1 25. Rxc1 Rb8
26. Nd7 Rd8 27. Rc7 Nxb3 28. axb3 a2 29. Ra7 Rxd7 30. Rxa2 Rd5 31. Rc2 Rg5+
32. Kh1 Kf7 33. f4 Rd5 34. Rc7+ Kf8 35. Kg2 g5 36. fxg5 Rxg5+ 37. Kh1 Rf5
38. f4 Rh5 39. Kg2 Ke8 40. Rc5 1-0