[Event "Buenos Aires Najdorf U12/14"] [Site "Buenos Aires ARG"] [Date "2004.10.07"] [Round "1.3"] [White "Kovalyov, Anton"] [Black "Gomez, David2"] [Result "1/2-1/2"] [ECO "B22"] [EventDate "2004.10.07"] [PlyCount "70"] [EventType "swiss"] [EventRounds "7"] [EventCountry "ARG"] [Source "ChessBase"] [SourceDate "2004.11.15"] 1. e4 c5 2. f4 Nc6 3. Nf3 d6 4. c3 Nf6 5. d3 e5 6. Be2 Be7 7. O-O O-O 8. Na3 Bg4 9. h3 Be6 10. f5 Bc8 11. g4 d5 12. g5 Nh5 13. Nxe5 Nxe5 14. Bxh5 dxe4 15. dxe4 Bxg5 16. Qxd8 Bxd8 17. Bf4 Bf6 18. Rad1 b6 19. Rd5 Re8 20. Bxe5 Rxe5 21. Rxe5 Bxe5 22. Rd1 Bb7 23. Bxf7+ Kxf7 24. Rd7+ Kf6 25. Rxb7 Kg5 26. Nc4 Bf6 27. e5 Bd8 28. Nd6 Kf4 29. e6 Ke5 30. Nf7+ Kf6 31. Nxd8 Rxd8 32. Rf7+ Ke5 33. Rd7 Re8 34. Rf7 g6 35. fxg6 hxg6 1/2-1/2

[Event "Buenos Aires Najdorf U12/14"] [Site "Buenos Aires ARG"] [Date "2004.10.07"] [Round "2.36"] [White "Guzman, Ezequiel"] [Black "Kovalyov, Anton"] [Result "0-1"] [ECO "D03"] [EventDate "2004.10.07"] [PlyCount "68"] [EventType "swiss"] [EventRounds "7"] [EventCountry "ARG"] [Source "ChessBase"] [SourceDate "2004.11.15"] 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 O-O 6. Bd3 Nbd7 7. O-O c6 8. Re1 Qb6 9. Nb3 a5 10. Rb1 Re8 11. c3 Ne4 12. Bf4 f5 13. Ng5 Nxg5 14. Bxg5 e5 15. dxe5 Nxe5 16. Nd4 Nxd3 17. Qxd3 Bd7 18. f3 c5 19. Nc2 Be6 20. b3 Qa6 21. Qd2 Bf7 22. e4 fxe4 23. fxe4 dxe4 24. c4 a4 25. Qf4 axb3 26. axb3 Qe6 27. Rbd1 Be5 28. Qh4 h5 29. Be3 Ra2 30. Rc1 Bb2 31. Rcd1 Bc3 32. Re2 b6 33. Rf1 Qg4 34. Qxg4 hxg4 0-1

[Event "Buenos Aires Najdorf U12/14"] [Site "Buenos Aires ARG"] [Date "2004.10.07"] [Round "3.16"] [White "Kovalyov, Anton"] [Black "Scialabba, Santiago"] [Result "1-0"] [ECO "B21"] [EventDate "2004.10.07"] [PlyCount "57"] [EventType "swiss"] [EventRounds "7"] [EventCountry "ARG"] [Source "ChessBase"] [SourceDate "2004.11.15"] 1. e4 c5 2. f4 Nc6 3. Nf3 d6 4. c3 Bg4 5. Be2 Nf6 6. d3 e6 7. O-O Be7 8. h3 Bxf3 9. Bxf3 O-O 10. Be3 b5 11. Na3 Rb8 12. Nc2 Nd7 13. Qd2 Bf6 14. e5 Ncxe5 15. fxe5 Nxe5 16. Be2 d5 17. Bxc5 Re8 18. Bxa7 Rb7 19. Be3 Ng6 20. d4 Qc7 21. Bg5 Bxg5 22. Qxg5 e5 23. Qg3 Qd7 24. dxe5 Rxe5 25. Nd4 b4 26. Bg4 Qc7 27. Rac1 Qc5 28. Qf2 Re4 29. Nf3 1-0

[Event "Buenos Aires Najdorf U12/14"] [Site "Buenos Aires ARG"] [Date "2004.10.07"] [Round "4.8"] [White "Di Pietro, Malcolm"] [Black "Kovalyov, Anton"] [Result "0-1"] [ECO "C01"] [EventDate "2004.10.07"] [PlyCount "80"] [EventType "swiss"] [EventRounds "7"] [EventCountry "ARG"] [Source "ChessBase"] [SourceDate "2004.11.15"] 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. c3 Ne7 6. Ne2 O-O 7. O-O Bf5 8. Be3 Bxd3 9. Qxd3 Ng6 10. Ng3 c6 11. Nd2 Qc7 12. Rae1 Nd7 13. Nf3 Rfe8 14. Nf5 Bf8 15. Bd2 Nf6 16. h3 Ne4 17. Ng5 Qd7 18. Ng3 Nxg3 19. fxg3 f6 20. Nf3 Bd6 21. Nh2 Qc7 22. Rxe8+ Rxe8 23. Rf3 Qb6 24. b3 Qa5 25. a4 Qb6 26. b4 Ne5 27. Qf1 Nxf3+ 28. Qxf3 Qa6 29. a5 Qe2 30. Qf2 Bxg3 31. Qxg3 Qxd2 32. Nf1 Qe1 33. Qc7 Qe7 34. Qg3 b6 35. axb6 axb6 36. Qd3 b5 37. Qf5 Qe6 38. Qf4 Qe1 39. Qf3 Qc1 40. g4 Re1 0-1

[Event "Buenos Aires Najdorf U12/14"] [Site "Buenos Aires ARG"] [Date "2004.10.08"] [Round "5.4"] [White "Kovalyov, Anton"] [Black "Krysa, Leandro"] [Result "1/2-1/2"] [ECO "B21"] [EventDate "2004.10.07"] [PlyCount "73"] [EventType "swiss"] [EventRounds "7"] [EventCountry "ARG"] [Source "ChessBase"] [SourceDate "2004.11.15"] 1. e4 c5 2. f4 d5 3. exd5 Nf6 4. Nf3 Nxd5 5. d3 Nc6 6. Nc3 Nxc3 7. bxc3 g6 8. Bb2 Bg7 9. Qd2 Qb6 10. Rb1 Be6 11. Qc1 Bxa2 12. Ra1 Bd5 13. Be2 O-O 14. O-O Rac8 15. Rb1 Qc7 16. c4 Bxf3 17. Bxf3 Nd4 18. Bxd4 Bxd4+ 19. Kh1 b6 20. c3 Bg7 21. g3 Rfd8 22. Qc2 Rd6 23. Rfd1 Rcd8 24. Rd2 Qd7 25. Rbd1 Qe6 26. Bd5 Qf6 27. Rc1 e6 28. Be4 Qe7 29. Re1 Qf6 30. Rc1 Qe7 31. Ra1 Qf6 32. Rad1 Qxc3 33. Qa4 R6d7 34. Rc2 Qd4 35. Re2 h5 36. h4 Qf6 37. Red2 1/2-1/2

[Event "Buenos Aires Najdorf U12/14"] [Site "Buenos Aires ARG"] [Date "2004.10.08"] [Round "6.4"] [White "Ciruzzi, Luciano"] [Black "Kovalyov, Anton"] [Result "0-1"] [ECO "B19"] [EventDate "2004.10.07"] [PlyCount "75"] [EventType "swiss"] [EventRounds "7"] [EventCountry "ARG"] [Source "ChessBase"] [SourceDate "2004.11.15"] 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. c4 Ngf6 14. O-O-O O-O-O 15. Bc3 Be7 16. Kb1 Rhe8 17. Rd2 Nc5 18. Qc2 Na6 19. Ne4 Nxe4 20. Qxe4 Bf6 21. Rc1 c5 22. Qg4 cxd4 23. Bxd4 Bxd4 24. Rxd4 Rxd4 25. Qxd4 f6 26. Qxa7 Qc5 27. Qxc5+ Nxc5 28. Rc2 Ne4 29. b3 Rd8 30. Kb2 Rd1 31. Re2 f5 32. Ne5 Rh1 33. g4 Rh2 34. gxf5 exf5 35. b4 Nxf2 36. Kb3 Rh3+ 37. Ka4 Ne4 38. Rg2 0-1

[Event "Buenos Aires Najdorf U12/14"] [Site "Buenos Aires ARG"] [Date "2004.10.08"] [Round "7.3"] [White "Kovalyov, Anton"] [Black "Spector, Sebastian"] [Result "1-0"] [ECO "B20"] [EventDate "2004.10.07"] [PlyCount "91"] [EventType "swiss"] [EventRounds "7"] [EventCountry "ARG"] [Source "ChessBase"] [SourceDate "2004.11.15"] 1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. c3 Nf6 5. d3 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O a6 9. h3 b5 10. Be3 Bb7 11. Nbd2 Nd7 12. Qe2 b4 13. d4 bxc3 14. bxc3 Qa5 15. Rfc1 Rab8 16. Nb3 Qb6 17. Rab1 Qa7 18. dxc5 dxc5 19. Qf2 Rfe8 20. Nxc5 Nxc5 21. Bxc5 Qa8 22. e5 Rec8 23. Kh2 a5 24. Rb6 Rd8 25. Rcb1 Rd7 26. Nd4 Nxd4 27. cxd4 Bf8 28. Qb2 Bxg2 29. Rxb8 Qe4 30. Qxg2 Qd3 31. R8b7 Rxb7 32. Rxb7 Qc4 33. Rb8 Kg7 34. Rb7 e6 35. Bxf8+ Kxf8 36. Qb2 Kg7 37. Rb5 Qc7 38. Rc5 Qa7 39. Qc3 a4 40. d5 exd5 41. e6+ Kh6 42. g4 f6 43. g5+ fxg5 44. fxg5+ Kxg5 45. Rxd5+ Kf4 46. Qd4+ 1-0