[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "5"]
[White "Cerda Ayala, Miguel Angel"]
[Black "Opezzo, Sebastian"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1559"]
[BlackElo "2279"]
[PlyCount "32"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Bg7 5. Be2 c6 6. Qd2 b5 7. b4 a5 8. bxa5 Qxa5 9. d5 b4 10. Bd4 bxc3 11. Bxc3 Nxe4 12. Bxa5 Nxd2 13. Rd1 Rxa5 14. Rxd2 Bc3 15. Kd1 Bxd2 16. Kxd2 Rxd5+ 0-1

[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "3"]
[White "Deng, Kong Liang"]
[Black "Opezzo, Sebastian"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "2433"]
[BlackElo "2283"]
[PlyCount "79"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 0-0 9. Be3 Qa5 10. h3 Nh5 11. Qd2 Ng3 12. Rg1 Nc6 13. Bf2 Nh5 14. g4 Nf6 15. a3 Bd7 16. 0-0-0 Rfc8 17. Kb1 a6 18. g5 Nh5 19. Nd5 Qxd2 20. Rxd2 Rab8 21. h4 Na5 22. Nxe7+ Kf8 23. Nxc8 Rxc8 24. Be3 Nc4 25. Bxc4 Rxc4 26. Rxd6 Ke7 27. Nd2 Rc8 28. e5 Bf5 29. Rc1 Ng3 30. Nb3 Ne2 31. Nd4 Nxc1 32. Nxf5+ gxf5 33. Kxc1 Bf8 34. Rb6 Rc7 35. b4 Ke8 36. Kb2 Kd8 37. Kb3 Kc8 38. Rf6 Rd7 39. e6 Rd1 40. Rxf7 1-0

[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "7"]
[White "Hamilton, Timothy"]
[Black "Opezzo, Sebastian"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2054"]
[BlackElo "2281"]
[PlyCount "64"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. Nc3 g6 2. d4 Bg7 3. e4 d6 4. Be3 Nf6 5. f3 c6 6. Qd2 Nbd7 7. 0-0-0 b5 8. Bh6 Bxh6 9. Qxh6 Qa5 10. Qg5 h6 11. Qd2 Nb6 12. e5 b4 13. Nb1 Nfd5 14. exd6 exd6 15. Re1+ Be6 16. Bd3 Qxa2 17. Bxg6 0-0-0 18. Be4 Nc4 19. Bxd5 Qxb2+ 20. Kd1 Nxd2 21. Bxe6+ fxe6 22. Nxd2 Qa1+ 23. Ke2 Qxd4 24. Nh3 Rhg8 25. Rhg1 Qe5+ 26. Kf2 Qc5+ 27. Ke2 Qxc2 28. Rc1 Rxg2+ 29. Nf2 Rxf2+ 30. Kxf2 Qxd2+ 31. Kg3 Rg8+ 32. Kh3 Rxg1 0-1

[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "1"]
[White "McCafferty, James"]
[Black "Opezzo, Sebastian"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1575"]
[BlackElo "2279"]
[PlyCount "110"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. d5 0-0 7. Bd3 e6 8. 0-0 exd5 9. Nxd5 Nxd5 10. exd5 Na6 11. c4 Nc7 12. Kh1 b6 13. Rb1 a6 14. Qc2 b5 15. b3 Rb8 16. Bb2 Bxb2 17. Rxb2 Qf6 18. cxb5 axb5 19. Qd2 Nxd5 20. Rbb1 Qxf4 21. Qa5 Be6 22. Bxb5 Ra8 23. Qd2 Qxd2 24. Nxd2 Rxa2 25. Nc4 Nc3 26. Bc6 Nxb1 27. Rxb1 Bxc4 28. bxc4 Rc8 29. Bd5 Re8 30. h3 Ree2 31. Rf1 Rf2 32. Re1 Kg7 33. Re7 Rad2 34. Rd7 Rf6 35. Ra7 Rxd5 36. cxd5 Rf5 37. Ra5 Rxd5 38. Kg1 Rd4 39. Kf2 c4 40. Ra8 d5 41. Ke3 Rd3+ 42. Ke2 d4 43. Rc8 Rc3 44. Kd2 Rd3+ 45. Ke2 Rg3 46. Kf2 Rc3 47. Ke2 d3+ 48. Kd2 Rc2+ 49. Ke3 Re2+ 50. Kf3 Rc2 51. Ke3 d2 52. Rd8 c3 53. Ke2 Rc1 54. Rd3 Re1+ 55. Kf2 d1Q 0-1

[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "9"]
[White "Mrochen, Markus"]
[Black "Opezzo, Sebastian"]
[Result "0-1"]
[ECO "B09"]
[WhiteElo "2034"]
[BlackElo "2263"]
[PlyCount "68"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 Bxb5 9. exf7+ Kd7 10. Nxb5 Qa5+ 11. Nc3 cxd4 12. Nxd4 h5 13. h3 Nc6 14. Nde2 Nh6 15. Be3 Nf5 16. Bf2 h4 17. a3 Rhf8 18. b4 Qd8 19. Rb1 Rxf7 20. b5 Na5 21. Qd5 e6 22. Qe4 Rc8 23. Na4 Rc4 24. Qf3 Rxa4 25. b6 a6 26. 0-0 Qc8 27. Rfd1 Qc6 28. Qg4 Qe4 29. Qxg6 Rf8 30. Nd4 Bxd4 31. Bxd4 Rxd4 32. Re1 Qd5 33. Qh7+ Ne7 34. f5 Qxf5 0-1

[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "6"]
[White "Opezzo, Sebastian"]
[Black "Arias, Lemnys A"]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "2274"]
[BlackElo "2290"]
[PlyCount "76"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bb5 Bd6 9. Bxd6 Qxd6 10. 0-0 0-0 11. Rc1 Bg4 12. h3 Bh5 13. Be2 a6 14. a3 Rac8 15. b4 b5 16. Nd2 Bg6 17. Nb3 Nd7 18. Nc5 Ra8 19. Qd2 Nb6 20. Rfd1 Rfb8 21. e4 Nc4 22. Bxc4 bxc4 23. exd5 exd5 24. Qg5 Ne7 25. Re1 f6 26. Qe3 Nf5 27. Qe6+ Qxe6 28. Rxe6 Nxd4 29. Rxa6 Nb3 30. Rxa8 Rxa8 31. Rd1 d4 32. Nb5 Bc2 33. Rxd4 Nxd4 34. Nxd4 Bd1 35. a4 Bxa4 36. b5 c3 37. b6 c2 38. Nd3 Rd8 0-1

[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "8"]
[White "Opezzo, Sebastian"]
[Black "Barash, Dmiry F"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2258"]
[BlackElo "2274"]
[PlyCount "96"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 c6 7. Nc3 Qa5 8. h3 e5 9. Be3 e4 10. Nd2 d5 11. Rc1 Nbd7 12. cxd5 cxd5 13. Qb3 Nb6 14. Bf4 Bd7 15. Be5 Rfc8 16. Rfd1 Ne8 17. Bxg7 Kxg7 18. Qc2 Na4 19. Nb3 Qd8 20. Qd2 Nxc3 21. Rxc3 Ba4 22. Rdc1 Bxb3 23. Rxb3 Rxc1+ 24. Qxc1 Nd6 25. Qf4 Qf6 26. Qe5 Qxe5 27. dxe5 Nc4 28. Rxb7 Nxe5 29. f3 exf3 30. exf3 Rd8 31. f4 Nc4 32. b3 Ne3 33. Kf2 Nxg2 34. Kxg2 d4 35. Kf2 d3 36. Ke1 d2+ 37. Kd1 Rd3 38. Rxa7 Rxg3 39. Kxd2 Rxh3 40. b4 Rf3 41. b5 Rxf4 42. a4 Rb4 43. Kc3 Rb1 44. Rb7 h5 45. a5 h4 46. a6 h3 47. a7 Ra1 48. b6 h2 0-1

[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "2"]
[White "Opezzo, Sebastian"]
[Black "Cordova Garcia, Edgar Armando"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "2285"]
[BlackElo "2016"]
[PlyCount "103"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nf3 Nf6 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 a6 8. h3 Na5 9. b3 c5 10. Be3 cxd4 11. Nxd4 Rb8 12. Rc1 Bd7 13. Nd5 b5 14. cxb5 axb5 15. Nxf6+ Bxf6 16. Qd2 Re8 17. Rfd1 e6 18. Nf3 d5 19. Bf4 e5 20. Bg5 Bxg5 21. Nxg5 d4 22. Ne4 Bc6 23. Qh6 f6 24. Qd2 f5 25. Ng5 Bxg2 26. Kxg2 Nc6 27. Nf3 Qd5 28. Kg1 Red8 29. Qc2 Rbc8 30. Qc5 e4 31. Qxd5+ Rxd5 32. Nxd4 Rcd8 33. Rxc6 Rxd4 34. Rxd4 Rxd4 35. Rc5 Rd2 36. e3 Rxa2 37. Rxb5 Rb2 38. Rb7 Rb1+ 39. Kg2 Rb2 40. b4 Rb3 41. b5 Rb1 42. b6 Rb2 43. g4 Rb1 44. gxf5 gxf5 45. Kg3 Rb5 46. Kf4 Rb2 47. Kg5 Rxf2 48. Rc7 Rb2 49. b7 Rb6 50. Rc8+ Kf7 51. b8Q Rxb8 52. Rxb8 1-0

[Event "Internet Section 06A g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.06"]
[Round "4"]
[White "Opezzo, Sebastian"]
[Black "Naranjo, Sebastian"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2278"]
[BlackElo "2048"]
[PlyCount "136"]
[EventDate "2004.03.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 099 Extra"]
[Source "ChessBase"]
[SourceDate "2004.05.04"]
[SourceVersion "1"]
[SourceVersionDate "2004.05.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. a3 Bxc3+ 6. Qxc3 Bb7 7. Nf3 0-0 8. Bg5 d6 9. e3 Nbd7 10. Be2 Qe8 11. Bf4 Ne4 12. Qc2 e5 13. dxe5 dxe5 14. Bg3 f5 15. 0-0-0 a5 16. Nd2 Ndc5 17. f3 Nxg3 18. hxg3 a4 19. g4 Rd8 20. gxf5 e4 21. Nxe4 Bxe4 22. Rxd8 Bxc2 23. Rxe8 Rxe8 24. Kxc2 Rxe3 25. Kd2 Re5 26. g4 Nb3+ 27. Kd1 Nd4 28. Re1 Kf7 29. f4 Re4 30. c5 Nxe2 31. Rxe2 Rxf4 32. cxb6 cxb6 33. Re6 Rxg4 34. Rxb6 h5 35. Ke1 h4 36. Kf2 h3 37. Rb8 Rh4 38. Rb4 Rh6 39. Kg1 Kf6 40. Rxa4 Kxf5 41. Kh2 g5 42. Ra5+ Kf4 43. Ra4+ Kf3 44. Rb4 g4 45. Rb3+ Kf4 46. Rb4+ Kf3 47. Rb3+ Kf2 48. Rg3 Rb6 49. b3 Ke2 50. b4 Rf6 51. Rxg4 Rf3 52. Rg3 Rf2+ 53. Kxh3 Rf4 54. Rb3 Kd2 55. b5 Kc2 56. Rb4 Rf3+ 57. Kg4 Rxa3 58. b6 Ra8 59. b7 Rb8 60. Kf5 Kc3 61. Rb6 Kc4 62. Ke6 Kc5 63. Rb1 Kc6 64. Rc1+ Kxb7 65. Kd7 Rh8 66. Rb1+ Ka6 67. Ra1+ Kb5 68. Rb1+ Kc4 1/2-1/2

[Event "Liape ch-1 zone-B gr-05 email"]
[Site "Liape email"]
[Date "2003.01.06"]
[Round "7"]
[White "Opezzo, Sebastian"]
[Black "Jordaan, Wayne"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "1600"]
[BlackElo "1673"]
[PlyCount "16"]
[EventDate "2003.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 e5 4. Bg2 Bg7 5. Nf3 Nc6 6. d4 exd4 7. Nxd4 0-0 8. 0-0 Re8 0-1

[Event "Liape ch-1 zone-B gr-05 email"]
[Site "Liape email"]
[Date "2003.01.05"]
[Round "6"]
[White "Cesbron, Guy"]
[Black "Opezzo, Sebastian"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "2201"]
[BlackElo "1600"]
[PlyCount "19"]
[EventDate "2003.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. e6 fxe6 9. Ng5 Bxb5 10. Nxe6 1-0

[Event "Liape ch-1 zone-B gr-05 email"]
[Site "Liape email"]
[Date "2003.01.03"]
[Round "4"]
[White "Uzcategui Breisse, Jorge"]
[Black "Opezzo, Sebastian"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1931"]
[BlackElo "1600"]
[PlyCount "7"]
[EventDate "2003.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. Bf4 c5 4. c3 1-0

[Event "Liape ch-1 zone-B gr-05 email"]
[Site "Liape email"]
[Date "2002.12.31"]
[Round "1"]
[White "Kerekes, Jozef"]
[Black "Opezzo, Sebastian"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "2312"]
[BlackElo "1600"]
[PlyCount "19"]
[EventDate "2003.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "Corr 2006"]
[Source "ChessBase"]
[SourceDate "2006.04.01"]
[SourceVersion "3"]
[SourceVersionDate "2006.04.01"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. f4 Nf6 5. Nf3 c5 6. dxc5 Qa5 7. Qd3 Qxc5 8. Be3 Qa5 9. Qb5+ Qxb5 10. Nxb5 1-0

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "4"]
[White "Fama, Ariel"]
[Black "Opezzo, Sebastian"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2175"]
[PlyCount "58"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 5. Be3 e5 6. d5 Nce7 7. Bd3 f5 8. f3 Nf6 9. Nge2 0-0 10. b4 fxe4 11. Nxe4 Nf5 12. Bf2 Bh6 13. 0-0 Ne3 14. Bxe3 Bxe3+ 15. Kh1 Bf5 16. N4g3 Bd7 17. Qc2 Qe7 18. Rae1 Bb6 19. Nc3 a5 20. b5 Rf7 21. Qd2 Qf8 22. a4 Bc5 23. Qc2 b6 24. Nce4 Nxe4 25. Nxe4 Bd4 26. Qd2 Re8 27. Qg5 Qe7 28. Qxe7 Rexe7 29. Ng5 Rf4 1/2-1/2

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "3"]
[White "Flamhum, Hernan"]
[Black "Opezzo, Sebastian"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2170"]
[PlyCount "70"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 d6 4. 0-0 e5 5. d3 f5 6. c4 Nf6 7. Nc3 0-0 8. Rb1 a5 9. a3 Nc6 10. b4 axb4 11. axb4 h6 12. b5 Ne7 13. Nd2 d5 14. cxd5 Nexd5 15. Nxd5 Nxd5 16. e4 Ne7 17. Qb3+ Kh7 18. Bb2 f4 19. Nf3 Qd6 20. d4 exd4 21. e5 Qd7 22. Nxd4 Bxe5 23. Rfe1 Bxd4 24. Bxd4 Nf5 25. Bc5 Re8 26. Rbd1 Rxe1+ 27. Rxe1 Ra5 28. Be7 Nxe7 29. Qf7+ Kh8 30. Bf1 Ng8 31. Qxg6 Qf5 32. Qe8 Bd7 33. Qd8 fxg3 34. hxg3 Ra2 35. Be2 c6 0-1

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "9"]
[White "Jolodovsky, Alberto"]
[Black "Opezzo, Sebastian"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2069"]
[PlyCount "26"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Be6 4. Bb3 Nf6 5. 0-0 Be7 6. d3 0-0 7. h3 Nc6 8. Nbd2 Qd7 9. Bxe6 fxe6 10. Nb3 h5 11. h4 d5 12. exd5 exd5 13. Re1 Bd6 1/2-1/2

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "1"]
[White "Opezzo, Sebastian"]
[Black "Bosco, Ricardo"]
[Result "1/2-1/2"]
[ECO "A07"]
[BlackElo "2207"]
[PlyCount "89"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 Bg4 4. 0-0 Nbd7 5. d3 e6 6. Nbd2 Be7 7. h3 Bh5 8. e4 c6 9. g4 dxe4 10. dxe4 Bg6 11. Nh4 Nxe4 12. Nxg6 Nxd2 13. Nxh8 Nxf1 14. Kxf1 Kf8 15. Be3 Kg8 16. Qf3 f6 17. Rd1 Qe8 18. Qe4 Nf8 19. Qf4 Kxh8 20. Qc7 Rd8 21. Rxd8 Qxd8 22. Qxd8 Bxd8 23. Bxa7 Nd7 24. Ke2 Bb6 25. Bxb6 Nxb6 26. Kd3 Kg8 27. b4 Kf8 28. b5 cxb5 29. Bxb7 Ke7 30. Kd4 Kd6 31. Be4 h6 32. Bd3 Kc6 33. c4 bxc4 34. Bxc4 e5+ 35. Kc3 Kc5 36. Bf7 Nc8 37. Kd3 Nd6 38. Be6 Kb4 39. Ke3 g5 40. Kd3 Kc5 41. f3 Kb4 42. Bd5 Kc5 43. Be6 Kb4 44. Bd5 Kc5 45. Be6 1/2-1/2

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "2"]
[White "Opezzo, Sebastian"]
[Black "Diaz Nahuel, Nahuel"]
[Result "0-1"]
[ECO "A04"]
[PlyCount "44"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 f5 2. e4 fxe4 3. Ng5 Nf6 4. d3 e3 5. Bxe3 e5 6. d4 exd4 7. Bxd4 Nc6 8. Bc4 Qe7+ 9. Kf1 d5 10. Bb5 Bd7 11. Nc3 0-0-0 12. Qd2 Ne4 13. Ngxe4 dxe4 14. Be3 Be6 15. Qe2 Nd4 16. Bxd4 Rxd4 17. Qe3 Qb4 18. a3 Bc4+ 19. Ke1 Qc5 20. b4 Qe5 21. Bxc4 Rxc4 22. Kd2 Be7 0-1

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "7"]
[White "Opezzo, Sebastian"]
[Black "Gerola, Pablo"]
[Result "1-0"]
[ECO "D10"]
[BlackElo "2026"]
[PlyCount "29"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nc6 5. Nf3 Bf5 6. Qb3 e6 7. Qxb7 Nb4 8. e4 Be7 9. exf5 Rb8 10. Bb5+ Kf8 11. Qd7 Qb6 12. Ba4 Qa5 13. Ne5 Nf6 14. Nc6 Nd3+ 15. Kd2 1-0

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "5"]
[White "Opezzo, Sebastian"]
[Black "Lida Garcia, Fernando"]
[Result "1/2-1/2"]
[ECO "E11"]
[BlackElo "2187"]
[PlyCount "26"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. Nbd2 0-0 7. e3 b6 8. Bd3 Bb7 9. 0-0 d6 10. Qe2 Nbd7 11. Rfd1 Qe7 12. Nf1 Rfd8 13. Rac1 e5 1/2-1/2

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "1999.??.??"]
[Round "6"]
[White "Pierucci, Fabian"]
[Black "Opezzo, Sebastian"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "53"]
[EventDate "1999.10.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 Nf6 5. f3 c6 6. Qd2 Nbd7 7. Bh6 Bxh6 8. Qxh6 b5 9. Nh3 Qa5 10. Qd2 Rb8 11. Nf2 b4 12. Ncd1 c5 13. d5 Nb6 14. b3 c4 15. bxc4 Qc5 16. Ne3 Ba6 17. Nd3 Qd4 18. Rb1 Nxc4 19. Nxc4 Bxc4 20. Nxb4 Qc5 21. Bxc4 Qxc4 22. Rb3 Rb5 23. Nc6 Kd7 24. Qd4 Rxb3 25. axb3 Qxc2 26. Qxa7+ Kc8 27. Qb8+ 1-0

