[Event "Mar del Plata op"] [Site "Mar del Plata ARG"] [Date "2006.04.08"] [Round "1"] [White "Dimuro, Matias"] [Black "Kovalyov, Anton"] [Result "0-1"] [WhiteElo "2004"] [BlackElo "2309"] [ECO "B90"] [EventDate "2006.04.08"] [PlyCount "65"] [EventType "swiss"] [EventRounds "9"] [EventCountry "ARG"] [Source "Mark Crowther"] [SourceDate "2006.04.17"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Nbd7 9. Qd2 Rc8 10. g4 b5 11. g5 Nh5 12. O-O-O Nb6 13. Kb1 Be7 14. Rg1 O-O 15. h4 Qc7 16. Qf2 Rb8 17. Nd5 Bxd5 18. exd5 Nc4 19. Bc1 a5 20. f4 a4 21. Nd2 Nxf4 22. Ne4 f5 23. Ng3 g6 24. Bxf4 exf4 25. Ne2 Ne3 26. Rd2 Nc4 27. Rd3 a3 28. b3 Ne5 29. Rh3 f3 30. Rxf3 Nxf3 31. Qxf3 Qc5 32. Rg2 Rbc8 33. Qd3 0-1