[Event "Neuquen Las Balsas op"]
[Site "Neuquen"]
[Date "2022.06.18"]
[Round "3"]
[White "Rivas, Lucas"]
[Black "Gonzalez Culi, Diego"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1927"]
[BlackElo "2099"]
[PlyCount "100"]
[EventDate "2022.06.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. a3 c4 7. g3 Qc7 8. Bh3 Nge7 9. 0-0 Na5 10. Nbd2 Nc8 11. Ne1 Nb6 12. f4 g6 13. Ng2 0-0-0 14. Ne3 h5 15. Qf3 Kb8 16. Bg2 Bh6 17. h3 Rdg8 18. g4 hxg4 19. hxg4 Qd8 20. g5 Bg7 21. Qg3 Rh7 22. Nf3 Nb3 23. Rb1 Nc8 24. Nd2 Ba4 25. Bh3 Rgh8 26. Bg4 Ne7 27. Nf3 Qg8 28. Kg2 Bf8 29. Bd2 Bc6 30. Rh1 Nc8 31. Rbf1 Nb6 32. Be1 Na4 33. Nd1 Nc1 34. Rxh7 Qxh7 35. Bd2 Nd3 36. Ne3 Naxb2 37. Ne1 Bxa3 38. N1c2 Be7 39. Rb1 a5 40. Be2 a4 41. Ra1 Kc7 42. Ng4 b5 43. Nh6 Qg7 44. Rh1 Qf8 45. Qh4 Qa8 46. Qg4 Be8 47. Ra1 Bf8 48. Qh3 a3 49. Rf1 Qa4 50. Na1 b4 0-1

[Event "Chubut Easter op 1st"]
[Site "Chubut"]
[Date "2021.04.02"]
[Round "3"]
[White "Flores, German"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "1943"]
[BlackElo "1938"]
[PlyCount "100"]
[EventDate "2021.04.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. b3 Nbd7 7. Bb2 c6 8. Nbd2 c5 9. Re1 Qc7 10. e4 cxd4 11. Bxd4 Ne5 12. Nxe5 dxe5 13. Bb2 Rd8 14. Re2 Be6 15. c4 Nd7 16. Nf1 Nc5 17. Rd2 Bh6 18. Rxd8+ Rxd8 19. Qe2 f6 20. Rd1 Rxd1 21. Qxd1 Qd7 22. Qxd7 Nxd7 23. Ba3 Kf7 24. f3 Nb8 25. Kf2 Bd7 26. Ke2 Nc6 27. Kd3 Bf8 28. Ne3 e6 29. Bxf8 Kxf8 30. Nc2 b6 31. b4 Ke7 32. c5 bxc5 33. bxc5 Bc8 34. Kc3 Ba6 35. Nb4 Nxb4 36. Kxb4 Kd7 37. f4 exf4 38. gxf4 e5 39. fxe5 fxe5 40. Bh3+ Kc7 41. Be6 Bd3 42. Bd5 g5 43. Kc3 Bf1 44. Kd2 h5 45. Ke3 Bh3 46. Kf3 Bg4+ 47. Kg3 Bd7 48. h4 gxh4+ 49. Kxh4 Bg4 50. Kg5 Bf3 1/2-1/2

[Event "Chubut Province-ch"]
[Site "Comodoro Rivadavia"]
[Date "2017.11.18"]
[Round "3.8"]
[White "Rivas, Lucas"]
[Black "Krenek, Gustavo Luis"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2019"]
[BlackElo "1949"]
[PlyCount "47"]
[EventDate "2017.11.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. Nf3 Bg4 3. Nc3 Nf6 4. h3 Bxf3 5. Qxf3 e6 6. d3 Nc6 7. Bg5 Be7 8. exd5 Nd4 9. Qd1 exd5 10. Be2 0-0 11. 0-0 c6 12. Re1 h6 13. Bd2 Bd6 14. Bf1 Qc7 15. Ne2 Ne6 16. c3 Rae8 17. Qc2 Nh5 18. d4 f5 19. Kh1 Nf6 20. Ng1 Ne4 21. Re2 Qf7 22. Nf3 N6g5 23. Ne5 Bxe5 24. dxe5 0-1

[Event "Villa Ballester Bicentenario Indep 16th"]
[Site "Villa Ballester"]
[Date "2016.08.13"]
[Round "5.2"]
[White "Dolezal, Cristian"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "2415"]
[BlackElo "2022"]
[PlyCount "79"]
[EventDate "2016.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 0-0 10. e3 Nh5 11. Bh2 f5 12. Be2 f4 13. exf4 Nxf4 14. 0-0 Nd7 15. a5 Ne5 16. Nxe5 Bxe5 17. Bg4 Bf5 18. Ra4 Qg5 19. Bxf4 Bxf4 20. g3 Bxg4 21. hxg4 Rae8 22. Ne4 Qh6 23. gxf4 Rxf4 24. f3 Qh3 25. Qe2 Re5 26. Qg2 Qxg2+ 27. Kxg2 Rxd5 28. Nxc5 Rxa4 29. Nxa4 Rxa5 30. Nc3 Kf7 31. Rh1 Kg7 32. Rd1 b5 33. Rxd6 b4 34. Ne4 Ra2 35. Kg3 Rxb2 36. Rxa6 h6 37. Ra7+ Kf8 38. Kf4 g5+ 39. Kf5 Rb3 40. Nf6 1-0

[Event "Villa Ballester Bicentenario Indep 16th"]
[Site "Villa Ballester"]
[Date "2016.08.07"]
[Round "3.4"]
[White "Quiroga, Facundo"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2255"]
[BlackElo "2022"]
[PlyCount "110"]
[EventDate "2016.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 c5 7. 0-0 cxd4 8. Nxd4 Nc6 9. Be3 Bd7 10. Qd2 Ng4 11. Bxg4 Bxg4 12. f3 Be6 13. b3 Qa5 14. Rad1 Rfd8 15. Rf2 Ne5 16. Ncb5 Qxd2 17. Rfxd2 Bd7 18. Nc7 Rac8 19. Nd5 Re8 20. Bg5 f6 21. Be3 Bc6 22. Ne6 Bxd5 23. exd5 a6 24. a4 Nd7 25. a5 Bh8 26. Bd4 f5 27. Bxh8 Kxh8 28. h4 Nc5 29. Nd4 Kg7 30. h5 Kf6 31. hxg6 hxg6 32. Kf2 Nd7 33. Rh1 Rh8 34. Rdd1 Nc5 35. Ke3 e5 36. dxe6 Nxe6 37. Nxe6 Kxe6 38. Kf4 g5+ 39. Kxg5 Rcg8+ 40. Kf4 Rxh1 41. Rxh1 Rxg2 42. Rh7 Ra2 43. Rxb7 Rxa5 44. Rb8 Rc5 45. Rb7 Rc6 46. Kg5 Rc8 47. Rb6 a5 48. Ra6 Rg8+ 49. Kf4 Rb8 50. c5 Rb4+ 51. Kg5 Rxb3 52. Rxd6+ Ke5 53. f4+ Ke4 54. Re6+ Kd5 55. Ra6 Rb5 1/2-1/2

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2015.11.29"]
[Round "6"]
[White "Crespo, Eugenio"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "D79"]
[WhiteElo "2146"]
[BlackElo "1996"]
[PlyCount "107"]
[EventDate "2015.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 c6 6. 0-0 d5 7. cxd5 cxd5 8. d4 e6 9. Bf4 Nc6 10. Qd3 b6 11. Rfc1 Na5 12. b4 Nc4 13. e4 Bb7 14. exd5 exd5 15. Be5 Rc8 16. Bh3 Ra8 17. a4 a6 18. b5 a5 19. Ra2 Bc8 20. Bg2 Bf5 21. Qf1 Nxe5 22. Nxe5 h5 23. Nc6 Qd7 24. Nxd5 Nxd5 25. Bxd5 Rae8 26. Bg2 h4 27. d5 Be4 28. Rd1 Qd6 29. Qc4 Bxg2 30. Kxg2 hxg3 31. hxg3 Bf6 32. Re2 Kg7 33. Rxe8 Rxe8 34. Nd4 Rd8 35. Nf3 Rd7 36. Qc6 Rd8 37. Qxd6 Rxd6 38. Ne1 Bc3 39. Nc2 Bf6 40. Kf3 Bd8 41. Ne3 Rf6+ 42. Ke2 Kf8 43. Rc1 Ke8 44. Rc6 Kd7 45. f4 Be7 46. Kd3 Bd8 47. Ke4 Rxc6 48. dxc6+ Kd6 49. Nd5 Kc5 50. c7 Bxc7 51. Nxc7 Kb4 52. Kd4 Kxa4 53. Kc4 Ka3 54. Nd5 1-0

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2015.11.29"]
[Round "7"]
[White "Rivas, Lucas"]
[Black "Tisera, Nicolas"]
[Result "1/2-1/2"]
[ECO "D92"]
[WhiteElo "1996"]
[BlackElo "2119"]
[PlyCount "57"]
[EventDate "2015.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 d5 4. c4 Bg7 5. Nc3 c6 6. e3 e6 7. Be2 0-0 8. 0-0 Nbd7 9. Qc2 b6 10. Rfc1 Bb7 11. cxd5 exd5 12. b4 Qe7 13. Rab1 h6 14. a4 Nh5 15. Bg3 Nxg3 16. hxg3 Rac8 17. Qb3 Rfd8 18. b5 c5 19. Bf1 c4 20. Qb2 f5 21. a5 Nf6 22. a6 Ba8 23. Ne5 Kh7 24. f4 Ne8 25. Qf2 h5 26. Be2 Nf6 27. Bf3 Ne8 28. Qd2 Nf6 29. Qa2 1/2-1/2

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2015.11.28"]
[Round "4"]
[White "Aguinaga, Maximiliano"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2079"]
[BlackElo "1996"]
[PlyCount "57"]
[EventDate "2015.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bd3 c5 6. dxc5 Bxc5 7. Nf3 Nc6 8. Qe2 Nd4 9. Nxd4 Qxd4 10. Nd2 Bb6 11. 0-0 Bd7 12. Nf3 Qg4 13. h3 Qh5 14. Ne5 Qxe2 15. Bxe2 Rd8 16. Nxd7 Kxd7 17. a4 Kc8 18. Bg5 h6 19. Bxf6 gxf6 20. Rfd1 Bc7 21. Bh5 Rxd1+ 22. Rxd1 Rd8 23. Rxd8+ Kxd8 24. Bxf7 Ke7 25. Bh5 Be5 26. c3 Bf4 27. Kf1 Bc1 28. b3 Bd2 29. c4 1/2-1/2

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2015.11.28"]
[Round "5"]
[White "Rivas, Lucas"]
[Black "Pirola, Marcos"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1996"]
[BlackElo "2040"]
[PlyCount "39"]
[EventDate "2015.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 Be7 5. Bd3 0-0 6. Nbd2 c5 7. c3 Nc6 8. Ne5 g6 9. h4 Nh5 10. Bh6 Ng7 11. h5 Nxe5 12. dxe5 Bg5 13. hxg6 fxg6 14. Qg4 Bxh6 15. Rxh6 Qc7 16. Rxh7 Qxe5 17. Qxg6 Rf5 18. Nf3 Qc7 19. Bxf5 exf5 20. Ng5 1-0

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2015.11.27"]
[Round "2"]
[White "Cicciari, Teo Dante"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "1920"]
[BlackElo "1996"]
[PlyCount "101"]
[EventDate "2015.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d3 0-0 5. Nbd2 c5 6. 0-0 Nc6 7. Re1 d6 8. c3 Rb8 9. e4 e5 10. a4 a6 11. Nb3 Qe7 12. d4 Rd8 13. d5 Na7 14. a5 Nh5 15. Nfd2 Rf8 16. Bf3 Nb5 17. Bxh5 gxh5 18. Qxh5 f5 19. Nc4 fxe4 20. Nb6 Bf5 21. Bg5 Qc7 22. Nd2 Rf7 23. Nxe4 Rbf8 24. f4 Bg6 25. Qh4 Rf5 26. g4 Rxf4 27. Bxf4 Rxf4 28. Ng5 Qe7 29. Rf1 Bf6 30. Rxf4 Bxg5 31. Rf8+ Kxf8 32. Qf2+ Kg7 33. Rf1 Bf4 34. Qe2 Qg5 35. Nc4 Bf7 36. Qf3 Bg6 37. h3 Qh4 38. Ne3 Qg5 39. Ng2 Nc7 40. c4 Ne8 41. Nxf4 exf4 42. Qxf4 Qxf4 43. Rxf4 Nf6 44. Rf3 Bc2 45. Rc3 Ba4 46. Re3 Kf7 47. b3 Bd7 48. Kg2 Ng8 49. Kg3 Ne7 50. Rf3+ Kg7 51. Rf1 1/2-1/2

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2015.11.27"]
[Round "3"]
[White "Rivas, Lucas"]
[Black "Sommariva, Rene"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "1996"]
[BlackElo "2061"]
[PlyCount "105"]
[EventDate "2015.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. 0-0 d6 8. c3 Na5 9. Bc2 c5 10. Nbd2 0-0 11. Re1 Qc7 12. Nf1 Re8 13. h3 Bf8 14. Ne3 g6 15. Nh2 Bg7 16. Nhg4 Bxg4 17. hxg4 h6 18. Qf3 Nc6 19. Bb3 Nd8 20. g5 hxg5 21. Nd5 Nxd5 22. Bxd5 Rb8 23. Bxg5 Ne6 24. Be3 a5 25. g3 Qe7 26. a3 Nc7 27. Ba2 b4 28. Bc4 bxc3 29. bxc3 Rb2 30. Qg4 Ne6 31. Kg2 Qf6 32. Rh1 Reb8 33. Qf3 Rc2 34. Rhc1 Rxc1 35. Rxc1 Qxf3+ 36. Kxf3 Rb2 37. Ra1 Bf6 38. Ra2 Rb1 39. Rc2 Kg7 40. Ba2 Ra1 41. Rb2 Ng5+ 42. Kg4 Nh7 43. Bc4 Be7 44. Rb7 Kf6 45. f4 Re1 46. Bf2 Rc1 47. fxe5+ dxe5 48. Bxc5 Kg7 49. Rxe7 Rf1 50. Bd6 Nf6+ 51. Kh3 g5 52. Bxe5 g4+ 53. Kg2 1-0

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2015.11.26"]
[Round "1"]
[White "Rivas, Lucas"]
[Black "Rocabado, Fernando"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "1996"]
[BlackElo "2200"]
[PlyCount "129"]
[EventDate "2015.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 169 Extra"]
[Source "ChessBase"]
[SourceDate "2015.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.12.18"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Nbd2 Nbd7 6. Be2 Bd6 7. 0-0 0-0 8. Qc2 Re8 9. e4 Nxe4 10. Nxe4 dxe4 11. Qxe4 e5 12. Bg5 f6 13. Bd3 Nf8 14. c5 exd4 15. Qxd4 Bxh2+ 16. Kxh2 Qxd4 17. Nxd4 fxg5 18. Rfe1 Bg4 19. Bc4+ Kh8 20. f3 Bd7 21. Bf7 Rxe1 22. Rxe1 Rd8 23. Re7 Bc8 24. Nb3 g6 25. Rc7 Kg7 26. Be6+ Bd7 27. Bh3 Kf6 28. Rxb7 Bxh3 29. Kxh3 Rd7 30. Rb8 Ne6 31. Rc8 Nf4+ 32. Kh2 Ke5 33. Rxc6 Ne6 34. Rc8 Kd5 35. Re8 Nxc5 36. Nxc5 Kxc5 37. Re5+ Kb4 38. Re4+ Kc5 39. Kg3 Rd2 40. Re7 a5 41. Ra7 Kb6 42. Rxh7 Rxb2 43. Rg7 Rxa2 44. Rxg6+ Kb7 45. Rxg5 a4 46. Kf4 Ra1 47. g4 Kb6 48. Rg8 Kb7 49. Rd8 a3 50. Rd4 a2 51. Ra4 Kb6 52. Kf5 Kb5 53. Ra8 Kb4 54. g5 Kb3 55. f4 Rg1 56. g6 a1Q 57. Rxa1 Rxa1 58. g7 Rg1 59. Kf6 Kc4 60. Kf7 Kd5 61. f5 Ke5 62. f6 Rg2 63. Ke7 Rg1 64. Kf7 Rg2 65. Ke7 1/2-1/2

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2014.06.22"]
[Round "7"]
[White "O Connor, Martin"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "A78"]
[WhiteElo "1868"]
[BlackElo "1981"]
[PlyCount "75"]
[EventDate "2014.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Be2 Bg7 8. Nf3 0-0 9. 0-0 Re8 10. Nd2 Na6 11. Kh1 Nc7 12. a4 a6 13. f3 Rb8 14. a5 Bd7 15. Bc4 Nh5 16. Ne2 f5 17. exf5 gxf5 18. f4 Qf6 19. Ra3 Qg6 20. Ng3 Nf6 21. Nf3 Ng4 22. Rd3 Re7 23. Kg1 Rbe8 24. Qc2 Nb5 25. h3 Nh6 26. Kh2 Bf6 27. Qf2 Nf7 28. Rdd1 Nh8 29. Rfe1 Kf8 30. Rxe7 Rxe7 31. Re1 Nd4 32. Rxe7 Nxf3+ 33. Qxf3 Kxe7 34. Qb3 Bc8 35. Qb6 Qe8 36. Bd3 Bd4 37. Qc7+ Qd7 38. Nxf5+ 1-0

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2014.06.21"]
[Round "5"]
[White "Rivas, Lucas"]
[Black "Cufre, Santiago"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1981"]
[PlyCount "96"]
[EventDate "2014.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. Nd2 Nxd2 5. Qxd2 e6 6. Nf3 Nd7 7. e3 Be7 8. Bd3 Nf6 9. c3 Bd7 10. Qc2 Rc8 11. 0-0 c5 12. dxc5 Bxc5 13. Ne5 b5 14. Qb3 a6 15. Nxd7 Qxd7 16. a4 0-0 17. axb5 axb5 18. h3 b4 19. cxb4 Bd6 20. Bxd6 Qxd6 21. Rfc1 Rb8 22. b5 Nd7 23. Qa3 Qe5 24. Qe7 Nf6 25. Rc2 d4 26. exd4 Qxd4 27. Rd1 Qa4 28. Qa3 Qh4 29. Rc4 Qg5 30. Rd4 Nd5 31. Bf1 Nc7 32. Rg4 Qf5 33. Qg3 Ne8 34. Qc3 Nf6 35. Rgd4 Nd5 36. Qg3 Qc2 37. Bc4 Qxb2 38. Bxd5 exd5 39. Rxd5 Rxb5 40. Rd8 Rb8 41. Qd6 Rbxd8 42. Qxd8 Qb8 43. Qg5 Qb6 44. Rd5 Qb1+ 45. Kh2 Qb6 46. Qg3 Qh6 47. f4 Qb6 48. Rg5 Qf6 1/2-1/2

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2014.06.21"]
[Round "6"]
[White "Rivas, Lucas"]
[Black "Salinas, Lautaro"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "1981"]
[BlackElo "1871"]
[PlyCount "58"]
[EventDate "2014.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1 d6 6. b4 Be6 7. d3 Qd7 8. h4 Nge7 9. e4 0-0 10. h5 Nd4 11. Be3 f5 12. Nce2 c6 13. hxg6 Nxg6 14. Rc1 Rf7 15. Bxd4 exd4 16. f4 Re8 17. Nf3 fxe4 18. dxe4 Bg4 19. Qd3 Rfe7 20. Nd2 d5 21. cxd5 cxd5 22. Nxd4 dxe4 23. Qc4+ Kh8 24. N2b3 Bf3 25. 0-0 Bxg2 26. Kxg2 Qg4 27. Qe2 Nh4+ 28. Kf2 e3+ 29. Qxe3 Rxe3 0-1

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2014.06.20"]
[Round "3"]
[White "Cicciari, Teo Dante"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1857"]
[BlackElo "1981"]
[PlyCount "55"]
[EventDate "2014.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 cxd4 4. cxd4 d5 5. e5 Nc6 6. Nf3 Qb6 7. Bd3 Bd7 8. Bc2 Nb4 9. 0-0 Nxc2 10. Qxc2 Rc8 11. Nc3 Ne7 12. Qb3 Qa6 13. Bd2 Nc6 14. Qb5 Nxe5 15. Qxa6 Nxf3+ 16. gxf3 bxa6 17. Rac1 Bd6 18. Na4 Rxc1 19. Rxc1 Ke7 20. Nc5 Rb8 21. b4 a5 22. a3 axb4 23. axb4 Bb5 24. Kg2 e5 25. Re1 Kf6 26. Bc3 Re8 27. dxe5+ Bxe5 28. Rxe5 1-0

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2014.06.20"]
[Round "4"]
[White "Pirola, Marcos"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2055"]
[BlackElo "1981"]
[PlyCount "42"]
[EventDate "2014.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. e3 Bc5 6. Nge2 d6 7. d4 Bb4 8. 0-0 Bxc3 9. bxc3 0-0 10. Ba3 Qe8 11. c5 d5 12. c4 e4 13. cxd5 Nxd5 14. Qb3 Qf7 15. Nf4 Nxf4 16. Qxf7+ Rxf7 17. gxf4 Ne7 18. Rab1 c6 19. Rb2 Nd5 20. Rc1 Be6 21. Bf1 Rd8 1/2-1/2

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2014.06.19"]
[Round "2"]
[White "Rivas, Lucas"]
[Black "Crespo, Eugenio"]
[Result "0-1"]
[ECO "D86"]
[WhiteElo "1981"]
[BlackElo "2124"]
[PlyCount "90"]
[EventDate "2014.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 0-0 8. Bc4 c5 9. Ne2 Qa5 10. Qd2 Nc6 11. Rd1 Rd8 12. 0-0 Ne5 13. Bd5 Ng4 14. Bf4 Nf6 15. Qe3 cxd4 16. Nxd4 e5 17. Nb3 exf4 18. Nxa5 fxe3 19. Bxf7+ Kxf7 20. Rxd8 Ke7 21. Rd3 exf2+ 22. Rxf2 Ng4 23. Rb2 Ne5 24. Rg3 b6 25. Nb3 Bh6 26. Rf2 Bd7 27. Nd4 Rc8 28. h3 Rc4 29. Kh2 b5 30. Nc2 Rxe4 31. Nb4 Be6 32. c4 Bf4 33. Rxf4 Rxf4 34. Ra3 bxc4 35. Rxa7+ Nd7 36. Kg3 g5 37. a4 c3 38. Nd3 Rc4 39. a5 c2 40. Nc1 Kd6 41. Ra8 Ra4 42. Rc8 Bf5 43. Rc3 Nc5 44. Kf3 Ra1 45. Ne2 Bd3 0-1

[Event "Chubut Province-ch"]
[Site "Chubut"]
[Date "2014.06.19"]
[Round "1"]
[White "Rivas, Lucas"]
[Black "Del Blanco, Eduardo"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "1981"]
[PlyCount "109"]
[EventDate "2014.06.19"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 g6 5. e3 Bg7 6. Bd3 0-0 7. 0-0 Bg4 8. h3 Bxf3 9. Qxf3 e6 10. Qe2 Nbd7 11. Rd1 Qe7 12. Bd2 dxc4 13. Bxc4 Nb6 14. Bb3 e5 15. dxe5 Qxe5 16. e4 Nh5 17. Qf3 Qf6 18. Qg4 Qe7 19. Bg5 Bf6 20. h4 Rad8 21. g3 Kg7 22. Re1 Bxg5 23. hxg5 Rd2 24. e5 Rxb2 25. e6 Qc5 26. Ne4 Qb4 27. exf7 Nd5 28. Qe6 Rxb3 29. axb3 Rxf7 30. Qe5+ Kg8 31. Qe8+ Kg7 32. Qe5+ Kg8 33. Qb8+ Kg7 34. Nd6 Rxf2 35. Ne8+ Kf7 36. Nd6+ Kg7 37. Ne8+ Kf7 38. Rf1 Rxf1+ 39. Rxf1+ Ke7 40. Qe5+ Kd8 41. Nd6 Kc7 42. Nc4+ Kd8 43. Rf7 Ne7 44. Rf8+ Kd7 45. Qd4+ Ke6 46. Qe5+ Kd7 47. Rf7 b5 48. Qd4+ Ke6 49. Qe4+ Kxf7 50. Ne5+ Ke6 51. Qxb4 Nxg3 52. Nd3 Ngf5 53. Qe4+ Kd6 54. Qe5+ Kd7 55. Nc5+ 1-0

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.15"]
[Round "11"]
[White "Monroy Garzon, Nataly Alejandra"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "A62"]
[WhiteElo "1791"]
[BlackElo "1987"]
[PlyCount "76"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 Bg7 8. Bg2 0-0 9. 0-0 Re8 10. Re1 a6 11. Bf4 b5 12. a3 Nh5 13. Bc1 Ra7 14. Rb1 b4 15. axb4 cxb4 16. Na2 a5 17. b3 Bf5 18. Be3 Bxb1 19. Bxa7 Bxa2 20. Qc2 Bxb3 21. Qxb3 Qc7 22. Bd4 Re4 23. Qd3 f5 24. Bxg7 Nxg7 25. Nd4 Re8 26. Qb5 Qc3 27. Rd1 Qc5 28. Qa4 Na6 29. Ne6 Qc8 30. Qxa5 b3 31. Qa3 Qc4 32. Rc1 Qb5 33. Nd4 Qb6 34. Nxb3 Rxe2 35. Rf1 Nb4 36. Qa5 Qxa5 37. Nxa5 Rd2 38. Nc4 Rd4 1/2-1/2

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.14"]
[Round "10"]
[White "Rivas, Lucas"]
[Black "Lopez, Diego"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "1987"]
[BlackElo "2171"]
[PlyCount "12"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 c5 6. Nc3 Nc6 1/2-1/2

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.13"]
[Round "9"]
[White "Rivas, Lucas"]
[Black "Mollo, Jhoan"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "1987"]
[BlackElo "1588"]
[PlyCount "61"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. d3 g6 5. g3 Bg7 6. Bg2 Nc6 7. 0-0 Bd7 8. Re1 0-0 9. d4 cxd4 10. cxd4 Ne8 11. Nc3 Nc7 12. Be3 f5 13. Qb3+ Kh8 14. Ng5 e6 15. Rad1 Na5 16. Qb4 Ne8 17. h4 h6 18. Nh3 Rb8 19. exf5 gxf5 20. Nf4 Nc6 21. Qb3 Rf6 22. Nh5 Rg6 23. Nxg7 Kxg7 24. Ne2 e5 25. dxe5 Nxe5 26. Nf4 Rg4 27. Bd4 Qc7 28. Ne6+ Bxe6 29. Qxe6 Qf7 30. Bxe5+ dxe5 31. Rd7 1-0

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.12"]
[Round "8"]
[White "Cruz Pereyra, Andresantoni"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "A24"]
[WhiteElo "1947"]
[BlackElo "1987"]
[PlyCount "66"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 e5 7. d3 Nbd7 8. Rb1 Re8 9. Ne1 a5 10. a3 Ra6 11. b4 b6 12. Nc2 Nb8 13. Bd2 Bd7 14. Qc1 Qc8 15. bxa5 Rxa5 16. Nb5 Ra4 17. Nc3 Ra5 18. Nb5 Ra4 19. Nb4 Na6 20. Na7 Qb8 21. Nbc6 Bxc6 22. Bxc6 Nc5 23. Bxa4 Nxa4 24. Nb5 Qc8 25. Qd1 Qh3 26. f3 Nh5 27. Rf2 Nc5 28. Nxc7 Rd8 29. Qf1 Qd7 30. Nd5 Qa4 31. Rxb6 Qxa3 32. Qb1 Qa7 33. Bc3 f5 1-0

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.12"]
[Round "7"]
[White "Rivas, Lucas"]
[Black "Caba, Edgar"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1987"]
[BlackElo "1861"]
[PlyCount "39"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bf4 Nc6 8. Qd2 0-0 9. 0-0-0 Rb8 10. h4 b5 11. Qd5 Bd7 12. Bd3 h6 13. g4 b4 14. g5 bxc3 15. bxc3 h5 16. g6 Be8 17. Bc4 Ne5 18. Nxe5 c6 19. Nxc6 Qb6 20. Nxe7+ 1-0

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.11"]
[Round "6"]
[White "Coro, Renan"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1922"]
[BlackElo "1987"]
[PlyCount "55"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c5 3. Bxf6 gxf6 4. dxc5 Qa5+ 5. c3 Qxc5 6. e3 d5 7. Bd3 e5 8. Nd2 Qb6 9. Qb3 Qxb3 10. Nxb3 Nc6 11. 0-0-0 Be6 12. Ne2 Rc8 13. Kb1 h5 14. h4 a6 15. Ng3 Ne7 16. Rhe1 Ng6 17. Rh1 Ne7 18. e4 Rc7 19. Be2 dxe4 20. Nxe4 Bg7 21. Nd6+ Kf8 22. Nxb7 Nc6 23. Bxa6 Ke7 24. N7c5 Ra8 25. Nxe6 fxe6 26. Be2 Rca7 27. Bf3 Ra6 28. Nc5 1-0

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.10"]
[Round "5"]
[White "Rivas, Lucas"]
[Black "Sabas, Jorge"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1987"]
[BlackElo "2302"]
[PlyCount "94"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Be7 5. Bd3 0-0 6. Nbd2 b6 7. Qe2 c5 8. c3 Bb7 9. Ne5 Nbd7 10. 0-0 Nxe5 11. Bxe5 Nd7 12. Bg3 Re8 13. e4 cxd4 14. cxd4 dxe4 15. Nxe4 Nf6 16. Be5 Nxe4 17. Bxe4 Bxe4 18. Qxe4 Qd7 19. Qg4 Bf8 20. Rad1 Qb5 21. Rfe1 g6 22. b3 Red8 23. Qf3 Bg7 24. h4 Qd5 25. Qf4 f6 26. Bc7 Rd7 27. Qg3 Rc8 28. Bf4 Rc2 29. Rc1 Rxc1 30. Rxc1 Qxd4 31. Be3 Qe4 32. Qb8+ Kf7 33. Rc7 Rxc7 34. Qxc7+ Kg8 35. Qb8+ Bf8 36. Bf4 Qe1+ 37. Kh2 Qxf2 38. Bg3 Qc5 39. Qxa7 e5 40. Qd7 Qd4 41. Qe6+ Kg7 42. a4 Bc5 43. Qc6 Qg1+ 44. Kh3 Qh1+ 45. Bh2 Qe1 46. Qb5 h5 47. Bg3 Qh1+ 0-1

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.09"]
[Round "4"]
[White "Canaviri, Percy"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "C48"]
[BlackElo "1987"]
[PlyCount "92"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bc5 5. Bxc6 dxc6 6. h3 0-0 7. d3 h6 8. Ne2 Qe7 9. Ng3 Nh7 10. 0-0 Re8 11. Nh2 Qh4 12. Nf3 Qxg3 13. d4 Qg6 14. Nxe5 Qxe4 15. Qh5 Qf5 16. Qxf5 Bxf5 17. dxc5 Rxe5 18. Bf4 Rxc5 19. c3 Rd5 20. Bxc7 Rd7 21. Bf4 Rad8 22. Rfe1 Kf8 23. g4 Be6 24. Be3 Ng5 25. Kg2 Bd5+ 26. Kg3 b6 27. h4 Ne4+ 28. Kh3 Nf6 29. g5 hxg5 30. hxg5 Be6+ 31. Kg3 Nd5 32. Bd4 c5 33. Be5 f6 34. gxf6 gxf6 35. Bxf6 Nxf6 36. Rxe6 Kf7 37. Rae1 Re8 38. Rxf6+ Kxf6 39. Rxe8 Rd2 40. Ra8 Rxb2 41. Rxa7 Rc2 42. Rb7 Rxc3+ 43. f3 Ke5 44. Rxb6 Ra3 45. Rb2 Kd4 46. Kg4 c4 1/2-1/2

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.09"]
[Round "3"]
[White "Rivas, Lucas"]
[Black "Aguilar, Andres"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1987"]
[BlackElo "2233"]
[PlyCount "82"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. 0-0 c6 7. a4 a5 8. h3 Na6 9. Be3 Nb4 10. Qd2 Qc7 11. Rad1 Re8 12. Ne1 e5 13. dxe5 dxe5 14. f4 exf4 15. Bxf4 Qe7 16. Bd6 Nxe4 17. Nxe4 Qxe4 18. Bf3 Qe3+ 19. Qxe3 Rxe3 20. c3 Nd5 21. Nc2 Re8 22. Bxd5 cxd5 23. Rxd5 Be6 24. Rd2 Bb3 25. Nd4 Bxa4 26. Rdf2 f5 27. Rd2 Bd7 28. Rfd1 Bh6 29. Rd3 Re4 30. Rf1 Rae8 31. Kh2 Re1 32. Rd1 R1e4 33. Rd3 a4 34. Kg3 Bg7 35. Rfd1 g5 36. Kh2 h5 37. Kg1 f4 38. Kf1 g4 39. hxg4 hxg4 40. R3d2 Bf6 41. Rf2 Bxd4 0-1

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.08"]
[Round "2"]
[White "Parraga, Alejandro"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "A62"]
[WhiteElo "2163"]
[BlackElo "1987"]
[PlyCount "122"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. g3 Bg7 8. Bg2 0-0 9. 0-0 Re8 10. Nd2 Nfd7 11. h3 Na6 12. Nb5 Nb6 13. Ne4 Bxh3 14. Bxh3 Rxe4 15. Bf4 Rxf4 16. gxf4 Qh4 17. Kg2 Qxf4 18. e3 Qg5+ 19. Qg4 Qxd5+ 20. Qf3 Qxf3+ 21. Kxf3 Bxb2 22. Rad1 d5 23. Nd6 c4 24. Nxb7 c3 25. Na5 Nc5 26. Ke2 c2 27. Rde1 Ne4 28. Nb3 a5 29. Kd3 a4 30. Nc1 a3 31. Kxc2 Ra4 32. Kd3 Rc4 33. Nb3 Rc3+ 34. Ke2 Rc2+ 35. Kf3 Nc4 36. Bg2 Ncd2+ 37. Nxd2 Nxd2+ 38. Ke2 Nxf1+ 39. Kxf1 Rd2 40. Re2 Rd1+ 41. Re1 Rxe1+ 42. Kxe1 d4 43. exd4 Bxd4 44. Ke2 Kg7 45. Bd5 f5 46. Kf3 Kf6 47. Bg8 h5 48. Bd5 g5 49. Kg2 g4 50. Bc6 Kg5 51. Bd5 Kf4 52. Bf7 h4 53. Be8 Kg5 54. Bd7 Bxf2 55. Kxf2 f4 56. Bc8 f3 57. Bb7 Kf4 58. Kf1 g3 59. Bc6 Ke3 60. Bd5 g2+ 61. Kg1 Kf4 0-1

[Event "American Continental 09th"]
[Site "Cochabamba"]
[Date "2013.05.07"]
[Round "1"]
[White "Rivas, Lucas"]
[Black "Cornejo, Max"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "1987"]
[BlackElo "2380"]
[PlyCount "52"]
[EventDate "2013.05.07"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BOL"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 Nge7 7. Re1 d5 8. Nbd2 0-0 9. c3 b6 10. e5 Qc7 11. Qe2 g5 12. Nxg5 Qxe5 13. Nf1 Qxe2 14. Rxe2 Ba6 15. Rd2 Ne5 16. d4 Nd3 17. dxc5 bxc5 18. Ne3 c4 19. f4 Rab8 20. Nh3 d4 21. Nd1 Nd5 22. Bxd5 exd5 23. Nhf2 dxc3 24. bxc3 d4 25. Ba3 Rfe8 26. Nxd3 cxd3 0-1

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.21"]
[Round "11"]
[White "Arias, Juan Carlos"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2215"]
[BlackElo "1987"]
[PlyCount "111"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. 0-0 Be7 6. Nbd2 0-0 7. b3 c5 8. Bb2 d6 9. c4 Nbd7 10. Qe2 Qc7 11. Rad1 Rfd8 12. e4 cxd4 13. Nxd4 Ne5 14. Bb1 a6 15. f4 Nc6 16. Kh1 Rac8 17. N2f3 Nd7 18. f5 e5 19. Nc2 Nf6 20. Ne3 Nb8 21. Nd5 Bxd5 22. cxd5 b5 23. Nd2 Ne8 24. Nf3 Nf6 25. Bc1 Rd7 26. Bd2 Bd8 27. Ng1 Qb7 28. g4 Ne8 29. g5 Rdc7 30. Rf3 Nd7 31. Rdf1 Nf8 32. h4 Qb6 33. h5 Qb7 34. Rg3 Qa7 35. Bd3 Rb7 36. Nf3 Qc5 37. Rc1 Qxc1+ 38. Bxc1 Rxc1+ 39. Rg1 Rc5 40. g6 h6 41. a4 bxa4 42. bxa4 a5 43. gxf7+ Kxf7 44. Bb5 Nc7 45. Rb1 Kg8 46. Nd2 Be7 47. Kg2 Rb8 48. Nc4 Nxb5 49. axb5 Rcxb5 50. Rxb5 Rxb5 51. Nxd6 Rb8 52. Nc4 Nd7 53. Nxa5 Bf6 54. Nc6 Rb3 55. Qa2 Re3 56. Qa7 1-0

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.20"]
[Round "10"]
[White "Rivas, Lucas"]
[Black "Fiori, Alberto Nicolas"]
[Result "1/2-1/2"]
[ECO "A08"]
[WhiteElo "1987"]
[BlackElo "2159"]
[PlyCount "97"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 d5 4. Nbd2 Nc6 5. g3 g6 6. Bg2 Bg7 7. 0-0 Nge7 8. Re1 h6 9. e5 Qc7 10. Nb3 b6 11. d4 cxd4 12. Nbxd4 a6 13. Nxc6 Nxc6 14. Qe2 a5 15. c3 Ba6 16. Qe3 Rc8 17. h4 h5 18. Qf4 Bd3 19. Be3 Be4 20. Bd4 Bxf3 21. Qxf3 Rb8 22. Qd3 0-0 23. f4 Ne7 24. Rac1 Rfc8 25. Bf1 Nf5 26. Rcd1 Bf8 27. Kg2 Be7 28. Kh2 Qd8 29. Bh3 Nh6 30. Bxe6 Kh7 31. Bxf7 Nxf7 32. f5 Qg8 33. f6 Bc5 34. e6 Nh6 35. Qf3 Rf8 36. f7 Nxf7 37. exf7 Rxf7 38. Qxd5 Bxd4 39. Qxd4 Qf8 40. Rd2 Rbb7 41. Ree2 Rfd7 42. Qxd7+ Rxd7 43. Rxd7+ Kh6 44. Rde7 Qf1 45. c4 Qf3 46. b3 Qf1 47. R7e3 Kg7 48. a3 Qc1 49. a4 1/2-1/2

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.19"]
[Round "9"]
[White "Pardo, Alejandro"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2181"]
[BlackElo "1987"]
[PlyCount "53"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 Nbd7 7. 0-0 e5 8. d5 Nc5 9. Qc2 a5 10. Bg5 h6 11. Bh4 Bd7 12. b3 Qe8 13. Nd2 Nh7 14. f3 h5 15. Rfb1 Bh6 16. Bf2 Qe7 17. a3 Qg5 18. Nf1 Bh3 19. Ng3 Bxg2 20. Kxg2 h4 21. b4 axb4 22. axb4 Na6 23. Ra2 Nf6 24. c5 Nh5 25. c6 Nf4+ 26. Kf1 hxg3 27. hxg3 1-0

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.18"]
[Round "8"]
[White "Rivas, Lucas"]
[Black "Bouwman, Marcelo Wanderley"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1987"]
[BlackElo "2233"]
[PlyCount "93"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 g6 4. Ngf3 Bg7 5. e5 c5 6. g3 Nc6 7. Nb3 Nxe5 8. Bg2 Nxf3+ 9. Qxf3 Ne7 10. 0-0 Qc7 11. c4 0-0 12. Bg5 d4 13. h4 h6 14. Bd2 Rb8 15. Rae1 Bd7 16. Qe2 e5 17. f4 Nf5 18. Qf2 h5 19. fxe5 Rbe8 20. Bf4 Bxe5 21. Bxe5 Rxe5 22. Rxe5 Qxe5 23. Bxb7 Nxg3 24. Re1 Qc7 25. Nxc5 Bg4 26. b4 Nf5 27. Bg2 Qd8 28. Re4 Re8 29. Rxe8+ Qxe8 30. Be4 Ne3 31. Qf4 Qe7 32. Qg3 a5 33. Qf2 axb4 34. Nb3 Qe5 35. Qh2 Nxc4 36. Qxe5 Nxe5 37. Nxd4 Kf8 38. Nc2 f5 39. Bg2 Nxd3 40. Bf1 Ne5 41. Kf2 f4 42. Nxb4 Nf3 43. Nd3 Nxh4 44. Nxf4 g5 45. Nd5 Be6 46. Nf6 Bf7 47. Nh7+ 1/2-1/2

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.17"]
[Round "7"]
[White "Etchevest, Marcelo"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "C27"]
[WhiteElo "1744"]
[BlackElo "1987"]
[PlyCount "166"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Bc5 4. d3 d6 5. Na4 Nbd7 6. Nxc5 Nxc5 7. f4 Be6 8. fxe5 dxe5 9. Be3 Bxc4 10. Bxc5 Nd7 11. Be3 Be6 12. Nf3 f6 13. 0-0 Qe7 14. Qe1 c5 15. a4 0-0 16. Nh4 Rfd8 17. Nf5 Bxf5 18. exf5 Nb8 19. Qh4 Nd7 20. Rf3 Rab8 21. Rh3 Nf8 22. Rf1 Qf7 23. b3 b6 24. Rg3 Kh8 25. Rg4 Rd7 26. Rf3 Rd4 27. Bxd4 cxd4 28. c4 dxc3 29. Rc4 Rd8 30. Rxc3 Nd7 31. Qc4 Qf8 32. b4 Qe8 33. Qc7 Nf8 34. Re3 h6 35. Qxa7 Ra8 36. Qb7 Qxa4 37. Rc1 Rd8 38. Qxb6 Qd7 39. Qc5 Qxf5 40. b5 Ne6 41. Qc4 Qg5 42. Rg3 Qd2 43. Qc3 Qa2 44. Rf3 Nd4 45. Rf2 Ne2+ 46. Rxe2 Qxe2 47. Re1 Qxd3 48. Qxd3 Rxd3 49. Rb1 Rd8 50. Kf2 Kg8 51. Ke3 Kf7 52. b6 Ke6 53. g4 Rb8 54. Ke4 Rb7 55. h4 g6 56. h5 f5+ 57. Ke3 fxg4 58. hxg6 Kf6 59. Ke4 Kxg6 60. Kxe5 Kg5 61. Kd5 g3 62. Kc6 Rb8 63. Kc7 Rxb6 64. Kxb6 Kf4 65. Rb4+ Kf3 66. Rb3+ Kf2 67. Rb2+ Kf1 68. Rb1+ Kf2 69. Rb2+ Kf3 70. Rb3+ Kg4 71. Rb4+ Kh3 72. Rb5 g2 73. Rh5+ Kg4 74. Rxh6 g1Q+ 75. Kb7 Qc5 76. Rb6 Kf5 77. Ka6 Qc4+ 78. Ka7 Ke5 79. Kb7 Kd5 80. Ka7 Qc7+ 81. Rb7 Qa5+ 82. Kb8 Kc6 83. Ra7 Qd8# 0-1

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.16"]
[Round "6"]
[White "Rivas, Lucas"]
[Black "Minelli, Fausto"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1987"]
[PlyCount "90"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c6 3. Nd2 d5 4. e3 Bf5 5. c3 Nbd7 6. Ngf3 e6 7. Qb3 Qb6 8. c4 Bb4 9. Bxf6 Nxf6 10. Be2 Ne4 11. Rd1 Nxd2 12. Nxd2 0-0 13. 0-0 Bxd2 14. Rxd2 Qxb3 15. axb3 Bg6 16. Ra1 a6 17. c5 f5 18. g3 Be8 19. f4 Bd7 20. Kf2 Rad8 21. Rdd1 Bc8 22. Ke1 h6 23. Kd2 Kf7 24. Kc3 Ke7 25. Rg1 Rg8 26. g4 g6 27. h4 Rgf8 28. Rg3 g5 29. hxg5 hxg5 30. Rf1 gxf4 31. Rxf4 fxg4 32. Rxf8 Rxf8 33. Bxg4 Rg8 34. Rg2 e5 35. Bh3 Rxg2 36. Bxg2 e4 37. Kb4 Kd8 38. Ka5 Kc7 39. Bf1 Bg4 40. b4 Bf5 41. Be2 Bh3 42. Ka4 Bc8 43. Kb3 Kd8 44. Kc3 Ke7 45. Bh5 Bd7 1/2-1/2

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.15"]
[Round "5"]
[White "De Freitas, Rames Fialho"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "A01"]
[BlackElo "1987"]
[PlyCount "63"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. f4 Qh4+ 6. g3 Qe7 7. Nf3 Bg4 8. h3 Bxf3 9. Qxf3 Nf6 10. fxe5 Bxe5 11. Bxe5 Qxe5 12. Bxc6+ bxc6 13. d4 Qe7 14. Nd2 Qb4 15. 0-0-0 Qc3 16. Kb1 0-0 17. Rhe1 a5 18. Qe2 a4 19. Qd3 Qa5 20. Kb2 axb3 21. axb3 Qa3+ 22. Kc3 Qa5+ 23. Kb2 Qa3+ 24. Kc3 Rfb8 25. Ra1 Qb4+ 26. Kb2 Qd6 27. e4 Rxa1 28. Rxa1 dxe4 29. Nxe4 Nxe4 30. Qxe4 Qxg3 31. Qxc6 Qf4 32. Qd7 1/2-1/2

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.14"]
[Round "3"]
[White "Perez, Maximiliano"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2264"]
[BlackElo "1987"]
[PlyCount "47"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 Bxc3+ 7. bxc3 bxc6 8. Bd3 d6 9. 0-0 Nd7 10. f4 0-0 11. Be3 Re8 12. Qf3 Qe7 13. Rae1 a5 14. e5 d5 15. c4 Nc5 16. f5 Nxd3 17. cxd3 Rb8 18. Qg3 Qf8 19. Kh1 Ba6 20. cxd5 cxd5 21. Rc1 Bxd3 22. Bc5 Qxc5 23. Rxc5 Bxf1 24. f6 1-0

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.14"]
[Round "4"]
[White "Rivas, Lucas"]
[Black "Lescano, Ramon D"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "1987"]
[PlyCount "55"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. Bf4 f5 4. Nbd2 Nf6 5. e3 Be7 6. c4 c6 7. Bd3 0-0 8. 0-0 Ne4 9. Bxe4 fxe4 10. Ne5 Nd7 11. f3 Nxe5 12. Bxe5 exf3 13. Rxf3 Bf6 14. Bxf6 Rxf6 15. Qe2 Bd7 16. Raf1 Qe7 17. e4 Rxf3 18. Nxf3 dxc4 19. Ne5 Rf8 20. Rxf8+ Kxf8 21. Qxc4 Ke8 22. Qa4 Qh4 23. h3 Qxe4 24. Qxa7 Qe3+ 25. Kh1 Qc1+ 26. Kh2 Qxb2 27. Qa8+ Ke7 28. Nxd7 1/2-1/2

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.13"]
[Round "2"]
[White "Rivas, Lucas"]
[Black "Krumrick, Ezequiel Arturo"]
[Result "1-0"]
[ECO "A33"]
[WhiteElo "1987"]
[PlyCount "57"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 c5 3. c4 cxd4 4. Nxd4 a6 5. g3 Nf6 6. Nc3 Qc7 7. b3 Nc6 8. Bg2 Bb4 9. Bb2 0-0 10. 0-0 Be7 11. Qd2 d6 12. Rac1 Nxd4 13. Qxd4 Bd7 14. Rfd1 e5 15. Qe3 Bc6 16. Nd5 Bxd5 17. cxd5 Qb6 18. Rc4 Rac8 19. Rdc1 Rxc4 20. Rxc4 Qa5 21. a3 Nd7 22. b4 Qb6 23. Bc1 f5 24. Qd3 Qd8 25. Qc2 a5 26. Rc7 b6 27. Qc6 Nb8 28. Qb7 Bf6 29. Qxb6 1-0

[Event "American Continental 08th"]
[Site "Mar del Plata"]
[Date "2012.10.12"]
[Round "1"]
[White "Krysa, Leandro Sergio"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2381"]
[BlackElo "1987"]
[PlyCount "87"]
[EventDate "2012.10.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. b3 Bb4 8. Bd2 Qc7 9. Bd3 dxc4 10. Bxc4 e5 11. 0-0 0-0 12. Rae1 Bd6 13. Bd3 Re8 14. dxe5 Bxe5 15. Nxe5 Nxe5 16. Be2 Bg4 17. f3 Bh5 18. e4 Qb6+ 19. Kh1 Rad8 20. Bf4 Bg6 21. Rc1 Nfd7 22. Bg3 h5 23. h3 Nf6 24. Bf2 Qa5 25. Bh4 Ned7 26. Rcd1 Qc5 27. Rd2 Nf8 28. Bf2 Qa5 29. Rfd1 Rxd2 30. Qxd2 Ne6 31. Nd5 Qxd2 32. Nxf6+ gxf6 33. Rxd2 f5 34. exf5 Bxf5 35. Bxa7 Nf4 36. Bf1 Nd5 37. Bf2 Ra8 38. a4 Re8 39. Kh2 Bg6 40. Bd4 Rd8 41. Bc5 Re8 42. b4 Ra8 43. Bd3 Nc3 44. a5 1-0

[Event "Mar del Plata op 40th"]
[Site "Mar del Plata"]
[Date "2009.04.12"]
[Round "9"]
[White "Rivas, Lucas"]
[Black "Mavrich, Leandro"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1967"]
[BlackElo "2180"]
[PlyCount "76"]
[EventDate "2009.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 h6 5. Bh4 c5 6. e3 d5 7. Bd3 c4 8. Be2 Nc6 9. 0-0 b5 10. c3 Bf5 11. Bg3 a5 12. Ne5 Qb6 13. b3 0-0 14. f3 Rfc8 15. Kh1 Nxe5 16. Bxe5 Qb7 17. e4 Be6 18. bxc4 bxc4 19. Rb1 Qc6 20. Rb2 Nd7 21. Bg3 Nb6 22. Re1 Na4 23. Rc2 f6 24. Nxc4 dxc4 25. d5 Qd7 26. dxe6 Qxe6 27. f4 Rd8 28. Qc1 Nc5 29. e5 Nd3 30. Bxd3 cxd3 31. Rd2 fxe5 32. fxe5 Qc4 33. Re3 h5 34. Qf1 Rf8 35. Rf3 Rxf3 36. gxf3 Rd8 37. Qb1 Qxc3 38. Qb6 Qc1+ 0-1

[Event "Mar del Plata op 40th"]
[Site "Mar del Plata"]
[Date "2009.04.11"]
[Round "8"]
[White "Lopez Gomez, Diego"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1935"]
[BlackElo "1967"]
[PlyCount "33"]
[EventDate "2009.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. e3 a6 7. Ne5 Bf5 8. Qb3 Ra7 9. Bd2 Nxe5 10. dxe5 Ng4 11. Nxd5 Nxe5 12. Bc3 Nc6 13. Rd1 Qb8 14. Qb6 f6 15. Bc4 e6 16. Nc7+ Ke7 17. e4 1-0

[Event "Mar del Plata op 40th"]
[Site "Mar del Plata"]
[Date "2009.04.10"]
[Round "7"]
[White "De Dovitiis, Alejo"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2346"]
[BlackElo "1967"]
[PlyCount "33"]
[EventDate "2009.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 d5 6. Nc3 Nf6 7. d4 Be7 8. Bg5 c6 9. Be2 dxc4 10. Bxc4 0-0 11. 0-0 Nbd7 12. Re1 Nb6 13. Bb3 Nfd5 14. Rxe7 Nxe7 15. Qe2 Nbd5 16. Bxd5 cxd5 17. Bxe7 1-0

[Event "Mar del Plata op 40th"]
[Site "Mar del Plata"]
[Date "2009.04.09"]
[Round "6"]
[White "Rivas, Lucas"]
[Black "Alpern, Adrian"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "1967"]
[BlackElo "2179"]
[PlyCount "67"]
[EventDate "2009.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. Bf4 c6 4. Nbd2 g6 5. e3 Bg7 6. Bd3 c5 7. c3 Nc6 8. Qe2 0-0 9. 0-0 Re8 10. e4 cxd4 11. cxd4 Bg4 12. Nb3 e5 13. dxe5 dxe5 14. Bd2 Nd4 15. Nbxd4 exd4 16. h3 Bd7 17. Rac1 Bc6 18. e5 Qb6 19. Bf4 Nd5 20. Bg3 Rad8 21. a3 Nc7 22. Ng5 Ne6 23. Nxe6 fxe6 24. h4 Bh6 25. Rce1 Qb3 26. h5 Qd5 27. f4 gxh5 28. Rf2 Qd7 29. Qxh5 Bf8 30. Bh4 Rb8 31. f5 exf5 32. Rxf5 Re6 33. Bf6 Qf7 34. Rg5+ 1-0

[Event "Mar del Plata op 40th"]
[Site "Mar del Plata"]
[Date "2009.04.08"]
[Round "5"]
[White "Rivas, Lucas"]
[Black "Prieto, Ernesto"]
[Result "1-0"]
[ECO "D93"]
[WhiteElo "1967"]
[BlackElo "2142"]
[PlyCount "91"]
[EventDate "2009.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 0-0 7. e3 Qa5 8. Be2 dxc4 9. Bxc4 b5 10. Be2 Be6 11. Qc2 b4 12. Qa4 Qb6 13. Nb1 Nd5 14. Be5 f6 15. Bg3 a5 16. Nbd2 Rc8 17. e4 Nc7 18. Nc4 Qa7 19. 0-0 Bf7 20. Rac1 Ne6 21. Rfd1 c5 22. d5 Be8 23. Qc2 Nf8 24. e5 a4 25. d6 e6 26. exf6 Bxf6 27. Nce5 Qg7 28. Bc4 Nbd7 29. Qe2 Ra7 30. b3 a3 31. Re1 h5 32. h4 Nxe5 33. Nxe5 Bxe5 34. Bxe5 Qf7 35. Rcd1 Bc6 36. Rd3 Bd5 37. Rg3 Bxc4 38. bxc4 Kh7 39. Ba1 Re8 40. Rf3 Qg8 41. Rf5 exf5 42. Qxe8 Qf7 43. Qe5 Qg8 44. Qxc5 Rf7 45. Re7 Nd7 46. Qd4 1-0

[Event "Mar del Plata op 40th"]
[Site "Mar del Plata"]
[Date "2009.04.07"]
[Round "4"]
[White "Gimenez, Dante"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2098"]
[BlackElo "1967"]
[PlyCount "70"]
[EventDate "2009.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 a6 7. Rc1 Bf5 8. Be2 e6 9. g4 Bg6 10. h4 h5 11. g5 Ne4 12. Nxe4 Bxe4 13. f3 Bf5 14. Kf2 Bd6 15. Nh3 0-0 16. Bxd6 Qxd6 17. f4 g6 18. Qd2 Rfc8 19. a3 Ne7 20. Kg3 Be4 21. Bf3 Nf5+ 22. Kf2 Bxf3 23. Kxf3 Nxh4+ 24. Kf2 Qd7 25. Ng1 Rxc1 26. Qxc1 Rc8 27. Qd2 Nf5 28. Nf3 Nd6 29. Kg2 Ne4 30. Qe2 Qa4 31. Qe1 Rc2+ 32. Kg1 Qc4 33. Ne5 Rc1 34. Nxc4 Rxe1+ 35. Kg2 Rxh1 0-1

[Event "Mar del Plata op 40th"]
[Site "Mar del Plata"]
[Date "2009.04.05"]
[Round "2"]
[White "Covas, Guillermo"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B71"]
[WhiteElo "2167"]
[BlackElo "1967"]
[PlyCount "51"]
[EventDate "2009.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nc6 7. Nxc6 bxc6 8. e5 Nd7 9. exd6 exd6 10. Qd4 Qf6 11. Be3 Be7 12. Qd2 0-0 13. 0-0-0 d5 14. Bd4 Qd6 15. h4 Bf6 16. h5 Rb8 17. hxg6 fxg6 18. g3 Qb4 19. b3 Qa3+ 20. Kb1 a5 21. Ka1 a4 22. Nxa4 Ra8 23. Bh3 Nc5 24. Bxc8 Bxd4+ 25. Qxd4 Rfxc8 26. Rxh7 1-0

[Event "LNA Puma Cup"]
[Site "Argentina"]
[Date "2006.10.21"]
[Round "8"]
[White "Rivas, Lucas"]
[Black "Aberbach Peltzman, Angel Sergio"]
[Result "1/2-1/2"]
[ECO "A59"]
[WhiteElo "1959"]
[BlackElo "2081"]
[PlyCount "109"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 g6 6. Nc3 Bg7 7. Nf3 0-0 8. bxa6 Bxa6 9. Bxa6 Rxa6 10. 0-0 d6 11. Re1 Nbd7 12. h3 Qa8 13. e4 Nb6 14. Re2 Nfd7 15. Bg5 Re8 16. a3 h6 17. Bf4 Rb8 18. Qc1 Kh7 19. a4 c4 20. Qd1 Nc5 21. Ne1 Nbxa4 22. Nxa4 Nxa4 23. Rc1 Nxb2 24. Qd2 c3 25. Rxc3 Bxc3 26. Qxc3 Na4 27. Qe3 Qa7 28. Qg3 Qd4 29. Qh4 Qg7 30. Qxe7 Nc3 31. Re3 Nb5 32. Qd7 f6 33. Qg4 h5 34. Qe2 Rab6 35. h4 Nd4 36. Qc4 Rb4 37. Qd3 Qe7 38. Qa6 R8b6 39. Qc8 Rb3 40. Kh2 Rxe3 41. Bxe3 Rb1 42. Nf3 Nxf3+ 43. gxf3 Rb7 44. Kg2 Rc7 45. Qb8 Rb7 46. Qc8 Kg7 47. Bf4 Qd7 48. Qc3 Kf7 49. Qa3 Rb6 50. Qa8 Kg7 51. Qa5 Rb1 52. Qa3 Qb5 53. Qa7+ Kg8 54. Qa8+ Kg7 55. Qa7+ 1/2-1/2

[Event "LNA Puma Cup"]
[Site "Argentina"]
[Date "2006.10.15"]
[Round "7"]
[White "Latini, Carlos"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "2142"]
[BlackElo "1959"]
[PlyCount "104"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Bd6 8. Be3 Qe7 9. Nbd2 Be6 10. Nc4 Bxc4 11. dxc4 0-0-0 12. Qe2 f6 13. Nh4 Qf7 14. Rad1 g5 15. Nf5 Ne7 16. Nxe7+ Qxe7 17. g3 h4 18. g4 Bc5 19. c3 Bxe3 20. Qxe3 b6 21. b4 Qe6 22. Qe2 Kb7 23. a4 Ra8 24. Ra1 a5 25. Rfd1 Qe7 26. c5 Rhd8 27. Rxd8 Qxd8 28. Qc4 Qg8 29. Qxg8 Rxg8 30. cxb6 cxb6 31. bxa5 bxa5 32. Kf1 Kb6 33. Rb1+ Kc5 34. Rb7 Rd8 35. Ke2 Kc4 36. Rb6 Rd6 37. Ra6 Kxc3 38. Rxa5 Kd4 39. f3 c5 40. Kd2 Rb6 41. Rb5 Ra6 42. a5 Kc4 43. Rb6 Rxa5 44. Rxf6 Ra3 45. Ke2 Ra2+ 46. Kf1 Kd3 47. Rf5 c4 48. Rxe5 c3 49. Rd5+ Ke3 50. Rd1 Rf2+ 51. Kg1 Rxf3 52. e5 c2 0-1

[Event "LNA Puma Cup"]
[Site "Argentina"]
[Date "2006.10.01"]
[Round "5"]
[White "Rivas, Lucas"]
[Black "Garzon, Enrique"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "1959"]
[BlackElo "2206"]
[PlyCount "51"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6 8. 0-0 d5 9. Ne5 Nfd7 10. Nxd7 Nxd7 11. Bc3 0-0 12. Nd2 Rb8 13. Re1 b5 14. c5 b4 15. Bb2 e5 16. e4 exd4 17. exd5 Bf6 18. Ne4 cxd5 19. Nxf6+ Nxf6 20. Qxd4 Bc8 21. Re5 Be6 22. g4 Rb7 23. g5 Ne8 24. f4 Re7 25. Rae1 Nc7 26. Rxd5 1-0

[Event "LNA Puma Cup"]
[Site "Argentina"]
[Date "2006.09.16"]
[Round "3"]
[White "Soria, Angel"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "C92"]
[WhiteElo "1970"]
[BlackElo "1959"]
[PlyCount "86"]
[EventDate "2006.09.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. h3 d6 9. c3 Bb7 10. d4 h6 11. d5 Na5 12. Bc2 Nc4 13. b3 Nb6 14. Be3 c6 15. dxc6 Bxc6 16. Nbd2 Qc7 17. Rc1 Rac8 18. Nf1 Rfd8 19. Qe2 Bf8 20. Ng3 g6 21. Red1 Nbd7 22. Bb1 d5 23. exd5 Nxd5 24. c4 Nxe3 25. Qxe3 Qb7 26. cxb5 axb5 27. Ne4 Bd5 28. Rxc8 Rxc8 29. Nxe5 Nxe5 30. Rxd5 Bg7 31. Rd1 Qc7 32. a4 bxa4 33. bxa4 Nc4 34. Qf3 Qc6 35. Bd3 Qxa4 36. Bxc4 Rxc4 37. Rd8+ Bf8 38. Rd7 Qa1+ 39. Kh2 Qe5+ 40. g3 Qe6 41. Nd2 Qxd7 42. Nxc4 Qd4 43. Ne3 Bc5 1/2-1/2

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.16"]
[Round "9"]
[White "Balzano, Ivan"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "1932"]
[PlyCount "110"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Nbd7 9. Qd2 h5 10. a4 Rc8 11. a5 Qc7 12. Be2 Be7 13. 0-0 g6 14. Rfd1 h4 15. Bf1 Kf8 16. Qf2 Kg7 17. Ra4 Nh5 18. Nd2 Nf4 19. Bc4 Nf6 20. Bxe6 Nxe6 21. Nc4 Nc5 22. Bxc5 Qxc5 23. Nb6 Rc6 24. Qxc5 Rxc5 25. Rd2 Rd8 26. Kf2 Nd7 27. Nxd7 Rxd7 28. Nd5 Bg5 29. Re2 Bd8 30. b4 Rc4 31. Ke3 f5 32. c3 Kf7 33. Kd3 Rc6 34. c4 Ke6 35. Rb2 fxe4+ 36. fxe4 Rf7 37. Raa2 Rc8 38. Rf2 Rxf2 39. Rxf2 Bg5 40. b5 Be7 41. Rb2 Rc5 42. Nb6 Bd8 43. Na4 Rc8 44. b6 Be7 45. Rf2 Rf8 46. Rxf8 Bxf8 47. Nc3 Be7 48. Nd5 Bd8 49. c5 dxc5 50. Kc4 Kd6 51. Nc3 Bg5 52. h3 Be3 53. Na4 Bd4 54. Kb3 Kc6 55. Kc4 g5 0-1

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.15"]
[Round "8"]
[White "Rivas, Lucas"]
[Black "Garzon, Enrique"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1932"]
[BlackElo "2219"]
[PlyCount "92"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 Nc6 8. c4 Nb4 9. cxd5 Nxd3 10. Qxd3 Qxd5 11. Re1 Bf5 12. g4 Bg6 13. Nc3 Nxc3 14. Qxc3 Rc8 15. Qe3 0-0 16. Ne5 Bb4 17. Rd1 Bc2 18. Rf1 f6 19. Nd3 Ba5 20. Nf4 Qf7 21. Qf3 c6 22. Be3 Rfe8 23. Rfc1 Be4 24. Qd1 Rcd8 25. Qa4 Bb6 26. Qc4 Bf3 27. h3 Re4 28. Nh5 Bxd4 29. Ng3 Bxe3 30. Nxe4 Bxc1 31. Rxc1 Rd1+ 32. Rxd1 Qxc4 33. Rd8+ Kf7 34. Nd6+ Ke7 35. Nxc4 Kxd8 36. Nd2 Bd5 37. a3 Kd7 38. f4 Kd6 39. Kf2 g5 40. Ke3 Bg2 41. fxg5 fxg5 42. Ne4+ Bxe4 43. Kxe4 Ke6 44. Kd4 b6 45. b4 a6 46. a4 Kd6 0-1

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.14"]
[Round "7"]
[White "Ponzo, Fabian Alejandro"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "D18"]
[WhiteElo "2075"]
[BlackElo "1932"]
[PlyCount "49"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c6 3. d4 d5 4. Nf3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 0-0 9. Qe2 Qe7 10. Rd1 Nbd7 11. e4 Bg6 12. Bd3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5 15. f4 Qe7 16. e5 Bxd3 17. Rxd3 Bxc3 18. Rxc3 Nd5 19. Rh3 f6 20. b3 Qc5+ 21. Be3 Nxe3 22. Qxe3 Qxe3+ 23. Rxe3 fxe5 24. fxe5 Rae8 25. Rd1 1/2-1/2

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.12"]
[Round "6"]
[White "Rivas, Lucas"]
[Black "Mendez, Pablo"]
[Result "1/2-1/2"]
[ECO "C13"]
[WhiteElo "1932"]
[BlackElo "2085"]
[PlyCount "103"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 f5 8. Nc3 Bf6 9. Qd2 c5 10. 0-0-0 cxd4 11. Nxd4 0-0 12. Kb1 Nc6 13. Nxc6 Qxd2 14. Ne7+ Bxe7 15. Rxd2 Rd8 16. Rxd8+ Bxd8 17. Bc4 Bd7 18. Rd1 Bc6 19. Ne2 Bf6 20. f3 Rc8 21. Bd3 Rd8 22. c3 Kf8 23. Kc2 Ke7 24. Re1 Rg8 25. g3 Bxf3 26. Bxf5 Rg5 27. Bd3 h5 28. Rf1 Bc6 29. Rf4 Be5 30. Rb4 Rg4 31. Nf4 Bxf4 32. Rxf4 Rxf4 33. gxf4 f5 34. Be2 h4 35. Kd3 Bd5 36. c4 Be4+ 37. Kd4 Kd6 38. b4 b6 39. a4 a5 40. c5+ bxc5+ 41. bxc5+ Kc6 42. Bc4 Bc2 43. Bxe6 Bxa4 44. Bxf5 Bb3 45. Be4+ Kb5 46. c6 Kb6 47. Kc3 Ba4 48. Kd4 Bxc6 49. Bb1 Kc7 50. Ke5 Kd7 51. Ba2 Ke7 52. Kf5 1/2-1/2

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.11"]
[Round "5"]
[White "Alonso Martin, Victor"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "B51"]
[BlackElo "1932"]
[PlyCount "96"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 d6 4. Bb5 Bd7 5. 0-0 Nf6 6. Qe2 a6 7. Bxc6 Bxc6 8. a3 e6 9. Qd3 Be7 10. b4 0-0 11. Re1 cxb4 12. axb4 Qc7 13. b5 axb5 14. Rxa8 Rxa8 15. Bb2 b4 16. Ne2 Bxe4 17. Qb3 Bxf3 18. gxf3 d5 19. Rc1 Qc4 20. Qxc4 dxc4 21. c3 b3 22. Ra1 Ra6 23. Rxa6 bxa6 24. Nd4 Bc5 25. Nc6 Nd5 26. Nb8 a5 27. Nc6 a4 28. Na5 a3 29. Nxc4 axb2 30. Nxb2 Ba3 31. Nc4 b2 32. Nxa3 Kf8 33. f4 Nxf4 34. Kf1 Ke7 35. c4 e5 36. Ke1 Kd6 37. Kd1 Nd3 38. f3 f5 39. Kc2 Ne1+ 40. Kd1 Nxf3 41. h3 Nd4 42. d3 g5 43. Kd2 h5 44. Kc3 g4 45. hxg4 hxg4 46. Kb4 g3 47. c5+ Kc6 48. Nc4 b1Q+ 0-1

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.09"]
[Round "4"]
[White "Rivas, Lucas"]
[Black "Mazziotti Irigoyen, Gabriel"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1932"]
[BlackElo "2277"]
[PlyCount "82"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Ba6 9. b3 g5 10. g3 Bg7 11. Bb2 0-0-0 12. Bg2 Rhe8 13. 0-0 Bxe5 14. Qxe5 Qxe5 15. Bxe5 Rxe5 16. cxd5 Bxf1 17. Kxf1 cxd5 18. Nc3 c6 19. Rd1 Rde8 20. Bf3 f5 21. h3 Kc7 22. Ne2 Rb8 23. Rd4 Rb5 24. Ke1 a5 25. Kd2 Rb4 26. Rd3 g4 27. Bg2 a4 28. Nf4 axb3 29. axb3 Rb8 30. h4 Ra8 31. Kc3 Re1 32. Bxd5 cxd5 33. Rxd5 Rf8 34. Nd3 Re2 35. b4 Ra8 36. Kb3 Rea2 37. Nf4 Rxf2 38. Rxf5 Rf3+ 39. Kc4 Rxg3 40. Nh5 Rf3 41. Rg5 Raf8 0-1

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.08"]
[Round "3"]
[White "Berardi, Cayetano"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "D45"]
[BlackElo "1932"]
[PlyCount "100"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. e3 e6 6. Bxc4 b5 7. Bd3 a6 8. 0-0 Nbd7 9. Re1 Bb7 10. a3 c5 11. dxc5 Bxc5 12. b4 Bb6 13. Bb2 0-0 14. Qe2 Qe7 15. Rac1 Rfd8 16. Bb1 Rac8 17. Ng5 h6 18. Nge4 Nxe4 19. Nxe4 Rxc1 20. Rxc1 f5 21. Ng3 Nf6 22. Ba2 Kh7 23. Bb1 g6 24. Be5 Ng4 25. Ba1 Nf6 26. h3 Nd5 27. Be5 Rd7 28. Qb2 Bc7 29. Bxc7 Rxc7 30. Ne2 e5 31. Rxc7 Qxc7 32. Ba2 Nf6 33. Qb3 Bd5 34. Qc3 Qxc3 35. Nxc3 Bxa2 36. Nxa2 Nd5 37. Kf1 Kg7 38. Ke2 Kf6 39. g3 g5 40. Kd3 Ke6 41. e4 Nb6 42. exf5+ Kxf5 43. Nc3 Nc4 44. g4+ Kf4 45. Nd5+ Kf3 46. Nc7 Kxf2 47. Nxa6 Kf3 48. Nc7 e4+ 49. Kd4 e3 50. Nxb5 e2 0-1

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.07"]
[Round "2"]
[White "Rivas, Lucas"]
[Black "Roldan, Emanuel"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1932"]
[PlyCount "77"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Qxe4+ 6. Be2 Bd6 7. Nxd6+ cxd6 8. 0-0 Nf6 9. Bd3 Qg4 10. Re1+ Ne7 11. Qxg4 Nxg4 12. Bf4 Ne5 13. Bxe5 dxe5 14. Rxe5 d6 15. Re3 Be6 16. Nc3 0-0 17. Rae1 Nd5 18. Nxd5 Bxd5 19. a3 Bc6 20. f3 h6 21. Kf2 g6 22. Be4 d5 23. Bd3 Rfe8 24. R1e2 Kf8 25. c3 Rxe3 26. Kxe3 Re8+ 27. Kd4 Rxe2 28. Bxe2 b6 29. f4 Ke7 30. h4 f6 31. Bf3 Kd6 32. g4 g5 33. hxg5 hxg5 34. f5 a6 35. c4 dxc4 36. Bxc6 Kxc6 37. Kxc4 Kd6 38. Kd4 Kc6 39. b3 1/2-1/2

[Event "Villa Ballester LV op"]
[Site "Villa Ballester"]
[Date "2005.01.05"]
[Round "1"]
[White "Sanchez, Fernando"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2275"]
[BlackElo "1932"]
[PlyCount "75"]
[EventDate "2005.01.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. cxd4 e6 6. Nc3 Nxc3 7. bxc3 d6 8. Nf3 dxe5 9. Nxe5 Be7 10. Bb5+ Nd7 11. Qa4 a6 12. Bf4 f6 13. Bxd7+ Bxd7 14. Nxd7 Qxd7 15. Qb3 0-0 16. 0-0 Rfe8 17. Rfe1 Bf8 18. a4 Rac8 19. Rab1 b5 20. axb5 axb5 21. Bd2 b4 22. cxb4 Qxd4 23. Rxe6 Kh8 24. Rxe8 Rxe8 25. Be3 Qe4 26. b5 h6 27. b6 Bd6 28. Rd1 Bb8 29. Qd5 Qg4 30. h3 Qg6 31. Qc6 Qh5 32. Rd5 Qg6 33. Rd1 Qh5 34. g4 Qg6 35. Kf1 Kh7 36. Rd7 Qb1+ 37. Kg2 Re4 38. Qxf6 1-0

[Event "Internet Section 08B g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.09"]
[Round "8"]
[White "Dobson Aguilar, Luis Francisco"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B97"]
[WhiteElo "2341"]
[BlackElo "1932"]
[PlyCount "45"]
[EventDate "2004.03.08"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. f5 Nc6 11. Nxc6 bxc6 12. fxe6 fxe6 13. Bxf6 gxf6 14. Be2 h5 15. e5 dxe5 16. Ne4 Be7 17. Rf1 f5 18. Rb3 Qxa2 19. Qc3 Bd7 20. Qxe5 Rf8 21. Bxh5+ Kd8 22. Nd6 Qxc2 23. Qa5# 1-0

[Event "Internet Section 08B g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.09"]
[Round "9"]
[White "Rivas, Lucas"]
[Black "Ievlev, Yevgeny"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "1932"]
[PlyCount "86"]
[EventDate "2004.03.08"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. Rb3 Qa5 11. g4 Be7 12. g5 Nfd7 13. h4 Nc6 14. Be2 Nc5 15. Nxc6 bxc6 16. Rb1 Na4 17. Nxa4 Qxa4 18. 0-0 0-0 19. Bd4 c5 20. Ba1 Bd7 21. c4 Rab8 22. f4 Qc6 23. Bf3 Qc7 24. e5 Bc6 25. Rb3 Rxb3 26. axb3 Rb8 27. exd6 Bxd6 28. Bxc6 Qxc6 29. Qc3 Bf8 30. f5 Qe4 31. fxe6 Qg4+ 32. Kf2 Qxe6 33. Re1 Qf5+ 34. Kg2 Qg4+ 35. Kf1 Qxh4 36. Qe5 Rxb3 37. Kg2 Qh3+ 38. Kf2 Rf3+ 39. Ke2 Qg2+ 40. Kd1 Rd3+ 41. Kc1 Qd2+ 42. Kb1 Rb3+ 43. Bb2 Rxb2+ 0-1

[Event "Internet Section 08B g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.08"]
[Round "1"]
[White "Melgosa, Marcio"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B87"]
[WhiteElo "2295"]
[BlackElo "1932"]
[PlyCount "41"]
[EventDate "2004.03.08"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. 0-0 Bd7 9. Qf3 Ra7 10. Qg3 Nc6 11. Nxc6 Bxc6 12. Be3 Rd7 13. f3 Be7 14. Qxg7 Rg8 15. Qh6 Rg6 16. Qh3 Kf8 17. Ne2 e5 18. Ng3 d5 19. exd5 Nxd5 20. Qxh7 Nxe3 21. Qxf7# 1-0

[Event "Internet Section 08B g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.08"]
[Round "6"]
[White "Minaya Molano, Juan M"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2288"]
[BlackElo "1932"]
[PlyCount "35"]
[EventDate "2004.03.08"]
[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 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e5 7. Qd2 Nge7 8. Bh6 0-0 9. h4 f5 10. Bxg7 Kxg7 11. h5 Rg8 12. Nf3 Kf8 13. Qh6+ Rg7 14. hxg6 hxg6 15. 0-0-0 Be6 16. Ng5 Bg8 17. Qh8 Rc8 18. Ne6+ 1-0

[Event "Internet Section 08B g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.08"]
[Round "5"]
[White "Rivas, Lucas"]
[Black "Barber, Eddie Shelton"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1932"]
[PlyCount "63"]
[EventDate "2004.03.08"]
[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 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Nbd7 9. Qd2 b5 10. 0-0-0 Nb6 11. Bxb6 Qxb6 12. Nd5 Bxd5 13. exd5 Rc8 14. g4 Be7 15. h4 0-0 16. g5 Nh5 17. Bh3 Rc7 18. Bg4 Nf4 19. Kb1 Ra8 20. Rhe1 a5 21. Nc1 Rc5 22. Qf2 Qb7 23. Ne2 Nxe2 24. Qxe2 Rxd5 25. Rxd5 Qxd5 26. f4 f6 27. Bf3 Qc5 28. Bxa8 g6 29. fxe5 fxe5 30. Qd3 Kg7 31. Rf1 Qb4 32. Qd5 1-0

[Event "Internet Section 08B g/8'+2\""]
[Site "Dos Hermanas"]
[Date "2004.03.08"]
[Round "4"]
[White "Rivas, Lucas"]
[Black "Szmetan, Ricardo"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "1932"]
[BlackElo "2322"]
[PlyCount "133"]
[EventDate "2004.03.08"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. f3 e5 5. dxe5 Qxd1+ 6. Kxd1 Nd7 7. e6 fxe6 8. Nxe4 Ngf6 9. Bd3 Nxe4 10. Bxe4 Nc5 11. Be3 Nxe4 12. fxe4 e5 13. Nf3 Bd6 14. c3 h6 15. Kc2 Be6 16. Rad1 Bc7 17. Bc5 b6 18. Be3 g5 19. Rhf1 Ke7 20. h3 Bf7 21. a4 Bg6 22. Nd2 Rad8 23. Kc1 Rd3 24. Rde1 c5 25. Rf3 Ke6 26. Kc2 Rd7 27. Ref1 Bd8 28. Rf8 Rxf8 29. Rxf8 Bf6 30. a5 Bd8 31. axb6 axb6 32. Rh8 Bh7 33. Rf8 Bf6 34. Rb8 Rd6 35. g3 Bg6 36. Nc4 Bxe4+ 37. Kc1 Rd3 38. Rxb6+ Kd5 39. Rxf6 Kxc4 40. Bf2 Bg2 41. Rxh6 Rf3 42. Be1 e4 43. Rd6 Rd3 44. Rxd3 Kxd3 45. h4 gxh4 46. gxh4 Bf3 47. b3 e3 48. Kb2 Bh5 49. c4 e2 50. b4 Kxc4 51. bxc5 Kxc5 52. Kc3 Kd5 53. Kd3 Ke5 54. Ke3 Kd5 55. Kd3 Ke5 56. Ke3 Kf5 57. Bc3 Bg4 58. Kf2 Ke4 59. Ke1 Kd3 60. Ba5 Bh5 61. Bd8 Ke4 62. Bc7 Kf3 63. Bd8 Kg3 64. Bc7+ Kxh4 65. Bd8+ Kg4 66. Bc7 Kf3 67. Bd8 1/2-1/2

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.11"]
[Round "7"]
[White "Godoy, Carlos"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2212"]
[BlackElo "1932"]
[PlyCount "53"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. a4 a6 8. Na3 d5 9. exd5 Nd4 10. Bd3 Be7 11. 0-0 Nxd5 12. Nc4 Nxc3 13. bxc3 Nc6 14. Re1 0-0 15. Nxe5 Nxe5 16. Rxe5 Bf6 17. Rd5 Qc7 18. Ba3 Re8 19. Rb1 b6 20. c4 Bb7 21. Rd7 Qc6 22. Bxh7+ Kxh7 23. Qh5+ Kg8 24. Qxf7+ Kh8 25. Rxb7 Qxa4 26. R7xb6 Qxa3 27. R6b3 1-0

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.08"]
[Round "5"]
[White "Loginov, Eugeny"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "E76"]
[BlackElo "1932"]
[PlyCount "91"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 c5 7. d5 Na6 8. Bd3 Nc7 9. 0-0 a6 10. a4 Rb8 11. Qe2 e6 12. Qc2 exd5 13. Nxd5 Ncxd5 14. cxd5 b5 15. Re1 c4 16. Bf1 Bg4 17. Ra3 Bxf3 18. gxf3 Nh5 19. axb5 axb5 20. Ra6 Bd4+ 21. Kh1 Qh4 22. Rd1 Ng3+ 23. Kg2 Nxf1 24. Rxf1 Bc5 25. Rc6 Rfc8 26. Rxc8+ Rxc8 27. Qc3 Qe7 28. Re1 f6 29. Bd2 Ra8 30. Be3 Bxe3 31. Rxe3 Re8 32. Qd4 Kf7 33. Ra3 Rb8 34. Re3 Qb7 35. e5 Qb6 36. e6+ Ke7 37. Qxb6 Rxb6 38. Ra3 Rb7 39. Ra8 f5 40. Kf2 b4 41. Rc8 c3 42. b3 Rb5 43. Rc7+ Kd8 44. Rxh7 c2 45. Rh8+ Ke7 46. Rh7+ 1/2-1/2

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.07"]
[Round "4"]
[White "Rivas, Lucas"]
[Black "Madeo, Domingo Federico"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "1932"]
[PlyCount "41"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Ng3 g6 6. c3 Bg7 7. Bc4 Nbd7 8. N1e2 0-0 9. 0-0 b5 10. Bb3 Bb7 11. a4 bxa4 12. Rxa4 Nd5 13. Nf4 N7b6 14. Ra1 Qc7 15. Nd3 Nd7 16. Re1 Rfe8 17. Ne4 c5 18. dxc5 Nxc5 19. Ndxc5 Rad8 20. Qc2 Bc8 21. Bg5 1-0

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.06"]
[Round "3"]
[White "Penela, Eduardo"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "A03"]
[BlackElo "1932"]
[PlyCount "62"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. f4 Nf6 2. e3 g6 3. b3 Bg7 4. Bb2 0-0 5. Nf3 d5 6. Be2 c5 7. 0-0 Nc6 8. d3 b6 9. Ne5 Bb7 10. Nd2 Nd7 11. d4 e6 12. c4 cxd4 13. exd4 Ndxe5 14. fxe5 Ne7 15. Bd3 Nf5 16. Bxf5 exf5 17. cxd5 Bxd5 18. Nc4 f6 19. Ba3 Re8 20. Nd6 Re6 21. Re1 Bf8 22. Rc1 Qd7 23. Re3 Rd8 24. Rec3 Qg7 25. Nxf5 gxf5 26. Rg3 Qxg3 27. hxg3 Bxa3 28. Rc7 Re7 29. Qc2 Be4 30. Qc4+ Bd5 31. Qc2 Be4 1/2-1/2

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.05"]
[Round "2"]
[White "Rivas, Lucas"]
[Black "Naspleda, Federico"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1932"]
[PlyCount "56"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. c3 Bg7 12. exf5 Bxf5 13. Nc2 0-0 14. Nce3 Be6 15. Bd3 f5 16. Qh5 e4 17. Bc2 Ne7 18. Nxe7+ Qxe7 19. 0-0 b4 20. cxb4 d5 21. Bb3 Qd7 22. Nxd5 Rae8 23. Rfd1 Qa7 24. Rac1 Bxd5 25. Bxd5+ Kh8 26. Qe2 Qe7 27. h3 f4 28. Rc6 f3 0-1

[Event "Chesspangenberg op 1st"]
[Site "Buenos Aires"]
[Date "2003.11.04"]
[Round "1"]
[White "Fiorito, Fabian"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2420"]
[BlackElo "1932"]
[PlyCount "47"]
[EventDate "2003.11.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. 0-0 Bg7 6. Re1 e5 7. c3 Ne7 8. d4 cxd4 9. cxd4 exd4 10. Nxd4 0-0 11. Nc3 Qb6 12. Nb3 d5 13. Bg5 f6 14. Be3 Qd8 15. Bc5 Rf7 16. Nd4 Bb7 17. Qb3 Qd7 18. Rad1 Rd8 19. Bxa7 Nc8 20. Bc5 Bh6 21. Qa4 Ne7 22. exd5 Nxd5 23. Nxd5 Ra8 24. Ne7+ 1-0

[Event "Villa Martelli Pro Am op 10th"]
[Site "Villa Martelli"]
[Date "2003.10.23"]
[Round "1"]
[White "Valerga, Diego"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "2496"]
[BlackElo "1932"]
[PlyCount "61"]
[EventDate "2003.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. g3 g6 2. Bg2 Bg7 3. e4 c5 4. Nc3 Nc6 5. d3 d6 6. Nge2 e5 7. 0-0 Nge7 8. f4 0-0 9. Be3 Nd4 10. Rb1 Bg4 11. h3 Be6 12. a3 Rb8 13. Qd2 Qd7 14. Kh2 h5 15. Rf2 f5 16. Rbf1 b6 17. fxe5 dxe5 18. Bh6 Rf7 19. exf5 Nexf5 20. Bxg7 Kxg7 21. Ne4 Rff8 22. c3 Nxe2 23. Qxe2 Qc7 24. Ng5 Bg8 25. Be4 Ne7 26. Rf7+ Bxf7 27. Rxf7+ Kg8 28. Bxg6 Qd6 29. Bh7+ Kh8 30. Qxh5 Rxf7 31. Nxf7+ 1-0

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.19"]
[Round "9"]
[White "Rivas, Lucas"]
[Black "Nieva, Jose Luis"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "2120"]
[PlyCount "52"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Be7 7. f3 a6 8. Be3 Qc7 9. Qd2 b5 10. g4 h6 11. 0-0-0 Nbd7 12. Kb1 Rb8 13. h4 b4 14. Nd5 Nxd5 15. Qxd5 Nf6 16. Qa5 Qc6 17. Ba7 Bd8 18. Qxd8+ Kxd8 19. Bxb8 Ne8 20. Ba7 a5 21. Be3 a4 22. Na5 Qc7 23. Nc4 Ke7 24. Nb6 Be6 25. Nxa4 Qc6 26. Nb6 Nc7 0-1

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.18"]
[Round "8"]
[White "Jimenez, Joaquin Rodrigo"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2232"]
[PlyCount "61"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 0-0 13. a4 bxa4 14. Rxa4 a5 15. Bc4 Rb8 16. b3 Be6 17. 0-0 Kh8 18. Qe2 f5 19. exf5 Bxf5 20. Nce3 Bg6 21. Bb5 Na7 22. Bc4 Nc6 23. Ra2 Bf4 24. g3 Bxe3 25. Qxe3 Bh5 26. f4 exf4 27. Nxf4 Qg5 28. Raf2 Rf5 29. h4 Qh6 30. Qe4 Ne7 31. Nxh5 1-0

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.17"]
[Round "7"]
[White "Rivas, Lucas"]
[Black "Garcia, Leandro"]
[Result "1-0"]
[ECO "C14"]
[PlyCount "75"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5 7. Nb5 f6 8. exf6 Nxf6 9. Nf3 a6 10. Nc3 Nc6 11. dxc5 Bd7 12. Bd3 Qc7 13. Na4 Qa5+ 14. c3 Bd8 15. Nb6 Bxb6 16. cxb6 Qxb6 17. Qe2 0-0-0 18. 0-0 h6 19. Bf4 Rde8 20. Ne5 Rhf8 21. b4 Ne4 22. Nxd7 Kxd7 23. Be3 Qc7 24. Bxe4 dxe4 25. Rfd1+ Kc8 26. b5 axb5 27. Qxb5 g5 28. Rab1 gxh4 29. Bb6 Qb8 30. Qc4 Rg8 31. Qxe4 h3 32. g3 Rxg3+ 33. fxg3 Qxg3+ 34. Kh1 Qxc3 35. Rbc1 Qa3 36. Rxc6+ Kb8 37. Rxe6 Rxe6 38. Rd8# 1-0

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.15"]
[Round "6"]
[White "Scarcella, Fernando"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2020"]
[PlyCount "105"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 g6 6. Be3 cxd4 7. cxd4 Bg7 8. Nc3 Qd8 9. Be2 0-0 10. Qb3 Nc6 11. 0-0 b6 12. Rfd1 Na5 13. Qa3 Be6 14. Ne5 Qd6 15. b4 Nb7 16. Bf3 Nd5 17. Rac1 a5 18. Nc4 Qd8 19. Nxd5 axb4 20. Qd3 Bxd5 21. Bxd5 Qxd5 22. Nxb6 Qxa2 23. Nxa8 Qxa8 24. Qb5 Nd6 25. Qxb4 Nf5 26. Qd2 Rd8 27. Rc4 Qe4 28. Qa5 Rb8 29. Qc7 Rf8 30. d5 Qe5 31. Qxe5 Bxe5 32. Bf4 Bxf4 33. Rxf4 Rd8 34. g4 e5 35. Ra4 Nd4 36. Ra5 Kg7 37. Kg2 g5 38. Re1 f6 39. Rb1 Rd7 40. Rb6 Ne2 41. Kf3 Nc3 42. d6 Kg6 43. Rc6 e4+ 44. Ke3 Nd1+ 45. Kxe4 Nxf2+ 46. Kd5 Nxg4 47. Ke6 Rxd6+ 48. Rxd6 Nxh2 49. Rf5 Ng4 50. Rd4 h5 51. Rxg4 hxg4 52. Rxf6+ Kh5 53. Kf5 1-0

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.14"]
[Round "5"]
[White "Rivas, Lucas"]
[Black "Acosta, Daniel Jose"]
[Result "1-0"]
[ECO "B56"]
[PlyCount "27"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Be6 7. f3 Nc6 8. Nd5 Nxe4 9. fxe4 Qh4+ 10. Kd2 Qxe4 11. Ne3 d5 12. Bd3 Qf4 13. g3 Qh6 14. Ke1 1-0

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.12"]
[Round "4"]
[White "Kampell, Guido"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2051"]
[PlyCount "73"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf5 d5 7. exd5 Bxf5 8. dxc6 Qxd1+ 9. Nxd1 bxc6 10. Ne3 Be6 11. Nc4 Bxc4 12. Bxc4 Rb8 13. Be3 Nd5 14. Bxa7 Rxb2 15. Bb3 Bb4+ 16. Kf1 0-0 17. g3 Ra8 18. Be3 Nxe3+ 19. fxe3 Rd8 20. Ke2 Rd2+ 21. Kf3 Kf8 22. Rad1 Rbxc2 23. Bxc2 Rxc2 24. a4 Ke7 25. Ra1 f5 26. e4 Rc3+ 27. Kg2 fxe4 28. a5 Rc2+ 29. Kh3 Bc5 30. Rac1 Rxc1 31. Rxc1 Kd6 32. a6 Ba7 33. Kg2 c5 34. Kf1 Kd5 35. Ke2 c4 36. Rb1 c3 37. Rb7 1-0

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.11"]
[Round "3"]
[White "Rivas, Lucas"]
[Black "Bibiloni, Jorge Jaime"]
[Result "0-1"]
[ECO "B80"]
[BlackElo "2233"]
[PlyCount "40"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Be7 7. f3 a6 8. Qd2 Qc7 9. 0-0-0 Nc6 10. g4 Rb8 11. g5 Nd7 12. f4 b5 13. Nxc6 Qxc6 14. Bg2 b4 15. e5 bxc3 16. Bxc6 cxd2+ 17. Rxd2 Bb7 18. Bxb7 Rxb7 19. exd6 Bd8 20. Re1 h6 0-1

[Event "Villa Ballester op 53th"]
[Site "Villa Ballester"]
[Date "2003.01.10"]
[Round "2"]
[White "Spata, Rafael"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2062"]
[PlyCount "96"]
[EventDate "2003.01.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 092 Extra"]
[Source "ChessBase"]
[SourceDate "2003.03.07"]
[SourceVersion "1"]
[SourceVersionDate "2003.03.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Bd3 0-0 13. 0-0 g6 14. Nc2 Be6 15. Nce3 Bh6 16. a4 bxa4 17. Qxa4 Bd7 18. Qa3 Be6 19. Nc4 Rb8 20. Qxa6 Bxd5 21. exd5 Ne7 22. Qa5 f5 23. Qxd8 Rfxd8 24. Ra5 e4 25. Be2 Bg7 26. Rd1 Kf8 27. Na3 Rxb2 28. Bf1 Bxc3 29. Rb5 Rxb5 30. Nxb5 Be5 31. Nc7 Rc8 32. Ne6+ Kf7 33. Ng5+ Kg7 34. Ne6+ Kf6 35. Ba6 Rc2 36. Nf8 Bf4 37. g3 Bh6 38. Nd7+ Kf7 39. Nb6 Bd2 40. Nc4 Bb4 41. Ne3 Rc3 42. Kf1 Bc5 43. Ke2 Bxe3 44. fxe3 Rc2+ 45. Rd2 Rxd2+ 46. Kxd2 Nxd5 47. Bc4 Ke6 48. Ke1 Ke5 0-1

[Event "Pro American op 9th"]
[Site "Villa Martelli"]
[Date "2002.10.27"]
[Round "3"]
[White "Karen Cruz, Ileana"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "64"]
[EventDate "2002.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6 bxc6 7. Bc4 Bb4 8. Bd2 0-0 9. a3 Bc5 10. 0-0 d5 11. b4 Bd4 12. Be2 Bxc3 13. Bxc3 d4 14. Bb2 Nxe4 15. Bd3 Nf6 16. Bc1 e4 17. Bc4 Be6 18. Bxe6 fxe6 19. Bg5 Qd5 20. Bf4 e5 21. Bg5 h6 22. Bxf6 Rxf6 23. Rb1 Rd8 24. a4 a6 25. Qc1 d3 26. Rd1 Rdf8 27. Rf1 Qd4 28. Qe1 e3 29. Qxe3 Qxe3 30. fxe3 Rxf1+ 31. Rxf1 Rxf1+ 32. Kxf1 dxc2 0-1

[Event "Pro American op 9th"]
[Site "Villa Martelli"]
[Date "2002.10.26"]
[Round "2"]
[White "Rivas, Lucas"]
[Black "Radoszta, Armando Esteban"]
[Result "0-1"]
[ECO "B75"]
[BlackElo "2024"]
[PlyCount "54"]
[EventDate "2002.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 b5 7. f3 g6 8. Qd2 Bg7 9. 0-0-0 0-0 10. Bh6 Bd7 11. g4 Qa5 12. Nb3 Qc7 13. h4 Rc8 14. Bd3 b4 15. Bxg7 bxc3 16. Qh6 cxb2+ 17. Kb1 Bb5 18. Bxf6 exf6 19. Nd4 Bxd3 20. Rxd3 Nc6 21. Nf5 gxf5 22. gxf5 Ne5 23. Rg1+ Ng6 24. Rd2 Qc5 25. Rgg2 Qc4 26. Rd3 Rab8 27. h5 Qxa2+ 0-1

[Event "Magistralito Najdorf U18"]
[Site "Buenos Aires"]
[Date "2002.10.08"]
[Round "7.10"]
[White "Hungaski, Robert Andrew"]
[Black "Rivas, Lucas"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "92"]
[EventDate "2002.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. 0-0 Bg7 13. Qh5 f4 14. c3 0-0 15. Rad1 Kh8 16. g3 Rg8 17. f3 Bf8 18. Kf2 Rg6 19. gxf4 exf4 20. Rg1 Rh6 21. Qg5 Qxg5 22. Rxg5 Rxh2+ 23. Rg2 Rxg2+ 24. Kxg2 Bxd5 25. exd5 Ne5 26. Bf5 Rb8 27. Rd4 Bh6 28. Kf2 Kg7 29. Be4 Bg5 30. Nc2 a5 31. a3 h5 32. Rd1 Nc4 33. Nd4 Nxb2 34. Rb1 Na4 35. Rxb5 Rxb5 36. Nxb5 Be7 37. Bc2 Nb6 38. Bb3 Kg6 39. a4 Kg5 40. Nd4 Bf6 41. Nb5 Be5 42. Kg2 Nd7 43. Bc2 Nc5 44. c4 h4 45. Na7 Nb7 46. Nb5 f5 0-1

[Event "Magistralito Najdorf U18"]
[Site "Buenos Aires"]
[Date "2002.10.08"]
[Round "6.15"]
[White "Rivas, Lucas"]
[Black "Benegas, Omar"]
[Result "1-0"]
[ECO "B76"]
[PlyCount "43"]
[EventDate "2002.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 Be6 13. Bxg7 Kxg7 14. h4 Qa5 15. Qd4+ Kg8 16. Qe5 Rab8 17. h5 Qc7 18. Rxd5 Qb7 19. hxg6 Qxb2+ 20. Kd2 fxg6 21. Qxe6+ Rf7 22. Rxh7 1-0

[Event "Magistralito Najdorf U18"]
[Site "Buenos Aires"]
[Date "2002.10.07"]
[Round "5.10"]
[White "Garcia Campitelli, Gonzalo"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2111"]
[PlyCount "52"]
[EventDate "2002.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. h4 e5 7. d5 Nbd7 8. h5 gxh5 9. Bxh5 Nc5 10. Bf3 a5 11. Bg5 Bd7 12. Qd2 Rb8 13. Nh3 Kh8 14. Bh6 Rg8 15. Ng5 Qe7 16. 0-0-0 Bxh6 17. Rxh6 Rg6 18. Rh2 Rbg8 19. Nh3 Ng4 20. Rhh1 f5 21. b3 b6 22. Kb2 f4 23. a3 Qg7 24. b4 Nb7 25. Qc2 Nf6 26. Ne2 Ng4 1-0

[Event "Magistralito Najdorf U18"]
[Site "Buenos Aires"]
[Date "2002.10.07"]
[Round "3.6"]
[White "Perdomo, Leandro Daniel"]
[Black "Rivas, Lucas"]
[Result "1-0"]
[ECO "E86"]
[WhiteElo "2276"]
[PlyCount "40"]
[EventDate "2002.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 c6 8. Qd2 Nbd7 9. 0-0-0 a6 10. Bh6 Qe7 11. h4 b5 12. d5 Bxh6 13. Qxh6 cxd5 14. exd5 b4 15. Na4 e4 16. Nd4 Ne5 17. Kb1 Bd7 18. Nb6 Rab8 19. Nxd7 Qxd7 20. Qg5 Nh5 1-0

[Event "Magistralito Najdorf U18"]
[Site "Buenos Aires"]
[Date "2002.10.07"]
[Round "4.13"]
[White "Rivas, Lucas"]
[Black "Lupi, Pablo Cesar"]
[Result "1-0"]
[ECO "B09"]
[BlackElo "2067"]
[PlyCount "36"]
[EventDate "2002.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. e5 Ng4 7. Bb5+ Bd7 8. Bxd7+ Nxd7 9. h3 cxd4 10. Qxd4 dxe5 11. Qd5 e4 12. Ng5 Nh6 13. Ncxe4 Qb6 14. c3 Rd8 15. Qb3 Qa6 16. Be3 0-0 17. 0-0-0 b6 18. Rhe1 Nf6 1-0

[Event "Magistralito Najdorf U18"]
[Site "Buenos Aires"]
[Date "2002.10.06"]
[Round "1.21"]
[White "Aguilar, Andres"]
[Black "Rivas, Lucas"]
[Result "1/2-1/2"]
[ECO "D67"]
[PlyCount "38"]
[EventDate "2002.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 c6 5. Bg5 Nbd7 6. e3 Be7 7. Rc1 0-0 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. 0-0 Nxc3 12. bxc3 e5 13. Qc2 exd4 14. cxd4 h6 15. Rb1 Nb6 16. Ne5 Nxc4 17. Qxc4 Be6 18. Qb4 Qxb4 19. Rxb4 Bxa2 1/2-1/2

[Event "Magistralito Najdorf U18"]
[Site "Buenos Aires"]
[Date "2002.10.06"]
[Round "2.16"]
[White "Rivas, Lucas"]
[Black "Bar, Mariano"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "63"]
[EventDate "2002.10.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. 0-0 0-0 8. c4 c6 9. Nc3 Nxc3 10. bxc3 Bg4 11. Rb1 dxc4 12. Bxc4 b5 13. Bd3 Nd7 14. Re1 h6 15. h3 Bxf3 16. Qxf3 Qf6 17. Qe4 Qg6 18. Qxg6 fxg6 19. Bxg6 Rf6 20. Be4 Re8 21. Bd5+ cxd5 22. Rxe8+ Kf7 23. Ra8 Re6 24. Be3 Bb8 25. Rxb5 Re8 26. Rb7 Ke7 27. Kf1 g5 28. h4 Kd6 29. hxg5 hxg5 30. Bxg5 Kc6 31. Rbxb8 Nxb8 32. Bf4 1-0

[Event "Pro American op 9th"]
[Site "Villa Martelli"]
[Date "2002.??.??"]
[Round "4"]
[White "Rivas, Lucas"]
[Black "Micele, Omar"]
[Result "1-0"]
[ECO "B19"]
[BlackElo "2030"]
[PlyCount "103"]
[EventDate "2002.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bf4 Ngf6 12. 0-0-0 Qb6 13. Ne4 c5 14. dxc5 Nxc5 15. Nxf6+ gxf6 16. Qe3 Na4 17. Qxb6 Nxb6 18. Rhe1 Nd5 19. Rxd5 Rg8 20. g3 e5 21. Nxe5 fxe5 22. Bxe5 f6 23. Bb8+ Be7 24. Bd6 Rg7 25. Rb5 b6 26. Rf5 Kd7 27. Bxe7 Rxe7 28. Rd5+ Ke8 29. Rxe7+ Kxe7 30. Kd2 Ke6 31. c4 Rg8 32. Ke3 f5 33. Rd4 Rc8 34. b3 Rg8 35. Kf3 Rf8 36. Kf4 Rg8 37. f3 Rf8 38. Rd5 Rf7 39. Re5+ Kd6 40. Rxf5 Re7 41. Rd5+ Kc7 42. g4 Re2 43. a4 Rb2 44. Rd3 Rg2 45. Kf5 Re2 46. f4 Rh2 47. Kg6 Rg2 48. g5 hxg5 49. fxg5 Re2 50. h6 Re6+ 51. Kf7 Re5 52. h7 1-0

[Event "Playa Union Challenger"]
[Site "Playa Union"]
[Date "2001.??.??"]
[Round "?"]
[White "Rivas, Lucas"]
[Black "Zuriel, Alejandro"]
[Result "0-1"]
[ECO "B47"]
[BlackElo "2203"]
[PlyCount "32"]
[EventDate "2001.02.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Bc4 Qc7 7. Bb3 Nf6 8. Be3 b5 9. a3 b4 10. axb4 Bxb4 11. f3 Ne5 12. Qd2 Nc4 13. Bxc4 Qxc4 14. Nde2 d5 15. exd5 Nxd5 16. 0-0 Nxe3 0-1

