[Event "Villa Martelli zt 2.5"]
[Site "Villa Martelli"]
[Date "2017.05.02"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Lopez, Ricardo"]
[Result "0-1"]
[ECO "D20"]
[WhiteElo "2112"]
[BlackElo "2014"]
[PlyCount "64"]
[EventDate "2017.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Qxd4 Qxd4 6. Nxd4 Bc5 7. Be3 a6 8. Bxc4 Nf6 9. f3 Nc6 10. Nc2 Nb4 11. Nxb4 Bxb4+ 12. Nd2 0-0 13. 0-0-0 Re8 14. a3 Bf8 15. g4 b5 16. Bb3 Bb7 17. g5 Nd5 18. Nf1 Nxe3 19. Nxe3 Bd6 20. Ng2 Rad8 21. h4 Be5 22. Kc2 c5 23. Bd5 Bxd5 24. Rxd5 Rxd5 25. exd5 Bd4 26. Re1 Kf8 27. Re4 Re5 28. Nf4 Ke7 29. b4 Rxe4 30. fxe4 c4 31. Ne2 Bf2 32. h5 Be3 0-1

[Event "Villa Martelli zt 2.5"]
[Site "Villa Martelli"]
[Date "2017.05.01"]
[Round "2"]
[White "Bulgarini Torre, Marco"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1869"]
[BlackElo "2112"]
[PlyCount "87"]
[EventDate "2017.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 Nc6 2. Nc3 e6 3. d4 Bb4 4. Nf3 d6 5. Bd3 Nf6 6. Bg5 h6 7. Bxf6 Qxf6 8. 0-0 0-0 9. e5 dxe5 10. Ne4 Qd8 11. dxe5 b6 12. Qe2 Bb7 13. Rad1 Qe8 14. c3 Be7 15. Nf6+ Bxf6 16. Qe4 g6 17. exf6 Kh7 18. Qh4 Rh8 19. b4 a6 20. a4 Rd8 21. b5 axb5 22. Bxb5 Rd6 23. Ne5 Kg8 24. Qf4 Rd5 25. Rxd5 exd5 26. Ng4 h5 27. Nh6+ Kh7 28. Qxc7 Qc8 29. Qxf7+ Kxh6 30. Qg7+ Kg5 31. f4+ Kh4 32. g3+ Kh3 33. Re1 Ba6 34. Bxa6 Qxa6 35. Qxh8 Nd4 36. cxd4 Qc4 37. f7 Qc2 38. Re2 Qc1+ 39. Kf2 Kxh2 40. Kf3+ Kh3 41. Qe5 Qh1+ 42. Ke3 Qc1+ 43. Kf2 h4 44. Qg5 1-0

[Event "Villa Martelli zt 2.5"]
[Site "Villa Martelli"]
[Date "2017.04.30"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Bitelmajer, Martin"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2112"]
[BlackElo "2440"]
[PlyCount "50"]
[EventDate "2017.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. g3 d5 4. Bg2 Nf6 5. d3 Bd6 6. Nf3 0-0 7. 0-0 Qe7 8. e3 Rd8 9. d4 e4 10. Nfd2 Bg4 11. Qc1 Qd7 12. a3 Ne7 13. c4 c6 14. Nc3 Rac8 15. a4 Ng6 16. Re1 Bh3 17. Bh1 Qf5 18. Ba3 Ng4 19. Nd1 Bb8 20. Bg2 Bxg2 21. Kxg2 Nh4+ 22. Kg1 Qh5 23. gxh4 Qxh4 24. Nf1 Qh3 25. f4 exf3 0-1

[Event "Buenos Aires Legislatura op 4th"]
[Site "Buenos Aires"]
[Date "2011.12.03"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Calens, Diego"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2155"]
[BlackElo "2073"]
[PlyCount "79"]
[EventDate "2011.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. c3 e6 6. Nbd2 Nh5 7. Bg5 Qb6 8. Qb3 h6 9. Bh4 g5 10. Bg3 Nxg3 11. hxg3 Bg7 12. Be2 Qxb3 13. axb3 cxd4 14. exd4 Bd7 15. b4 g4 16. Nh2 h5 17. Nhf1 f5 18. Ne3 Kf7 19. Nb3 b6 20. Kd2 a5 21. bxa5 Nxa5 22. Nxa5 bxa5 23. Ra2 Bf6 24. Rha1 Rab8 25. Rxa5 Rxb2+ 26. Nc2 Rhb8 27. Ra7 R8b7 28. Bd3 Bg5+ 29. Ke2 Ke7 30. Rxb7 Rxb7 31. Nb4 h4 32. gxh4 Bxh4 33. g3 Bg5 34. Ba6 Rc7 35. Ra3 Bc1 36. Ra5 Bb2 37. c4 Bc3 38. Nxd5+ exd5 39. Rxd5 Be6 40. Re5 0-1

[Event "Buenos Aires Legislatura op 4th"]
[Site "Buenos Aires"]
[Date "2011.11.29"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Ricardi, Pablo"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2155"]
[BlackElo "2513"]
[PlyCount "82"]
[EventDate "2011.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. e3 0-0 5. Nbd2 d5 6. Bd3 Nbd7 7. 0-0 Re8 8. c4 c5 9. Rc1 cxd4 10. exd4 dxc4 11. Nxc4 Nb6 12. Nce5 Be6 13. a3 Rc8 14. Qe2 Qd5 15. h3 a6 16. Rfd1 Qb3 17. Rxc8 Nxc8 18. Rc1 Nd6 19. Qc2 Qb6 20. b4 Nd5 21. Bd2 Nb5 22. Bxb5 Qxb5 23. a4 Qb6 24. Qc5 Qd6 25. Qxd6 exd6 26. Nd3 Bd7 27. Nf4 Nxf4 28. Bxf4 Bxa4 29. Bxd6 f6 30. Rc7 Bc6 31. Be7 g5 32. Nd2 Bf8 33. Bxf8 Re1+ 34. Kh2 Kxf8 35. Nc4 Re7 36. Rc8+ Re8 37. Rc7 Re7 38. Rc8+ Kf7 39. Nb6 Re8 40. Rc7+ Re7 41. Rc8 Re8 1/2-1/2

[Event "Villa Martelli Pro Am op 15th"]
[Site "Villa Martelli"]
[Date "2008.10.18"]
[Round "9.18"]
[White "Arenas, Sergio"]
[Black "Ocampos, Ian Guido"]
[Result "1-0"]
[ECO "E66"]
[WhiteElo "2155"]
[BlackElo "1898"]
[PlyCount "103"]
[EventDate "2008.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. Nc3 Nc6 7. d5 Na5 8. Nd2 c5 9. 0-0 a6 10. Qc2 Rb8 11. Rb1 b5 12. b3 Ng4 13. h3 Ne5 14. f4 Nd7 15. cxb5 axb5 16. Bb2 Ba6 17. Rfe1 c4 18. b4 Nb7 19. e4 Bd4+ 20. Kh2 e5 21. f5 Bxc3 22. Bxc3 Qe7 23. Nf3 Nd8 24. Bd2 f6 25. Bh6 Re8 26. fxg6 hxg6 27. Nh4 Qh7 28. Be3 Nf7 29. Bf3 Nh6 30. Bxh6 Qxh6 31. Bg4 Nf8 32. Qf2 Qg7 33. Rf1 Nh7 34. Be6+ Kh8 35. Qf3 Bc8 36. Bxc8 Rexc8 37. Qg4 Ng5 38. Rf2 c3 39. Rc1 Rc4 40. Re2 Rbc8 41. Rcc2 R8c7 42. Re3 Kh7 43. a3 Qg8 44. Nf3 Qd8 45. Nxg5+ fxg5 46. Qf3 Qc8 47. Qg4 Qa6 48. Qxg5 Qxa3 49. Qh4+ Kg7 50. Rf3 Qb3 51. Rcf2 Qa4 52. Rf8 1-0

[Event "Villa Martelli Pro Am op 15th"]
[Site "Villa Martelli"]
[Date "2008.10.17"]
[Round "8"]
[White "Tristan, Leonardo"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2393"]
[BlackElo "2155"]
[PlyCount "143"]
[EventDate "2008.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d6 3. Nf3 Nf6 4. Nc3 Bg4 5. Be3 e6 6. Qd2 a6 7. Ng1 Be7 8. f3 Bh5 9. g4 Bg6 10. h4 h5 11. g5 Nd7 12. Nge2 b5 13. Nf4 e5 14. Nxg6 fxg6 15. d5 Na5 16. b3 0-0 17. Bg2 Nb7 18. Ne2 Nbc5 19. f4 exf4 20. Nxf4 Ne5 21. b4 Nc4 22. Qe2 Nxe3 23. Qxe3 Rxf4 24. Qxf4 Nd7 25. 0-0 Ne5 26. Bh3 Qb8 27. Qe3 Kh7 28. c3 Nc4 29. Qd4 Ne5 30. Rf2 Qe8 31. Qd1 Qb8 32. a4 bxa4 33. Rxa4 Qb6 34. Qd4 Qb8 35. Ra1 Qb7 36. Raf1 a5 37. bxa5 Rxa5 38. Rf7 Ra2 39. Bg2 Qb2 40. R7f2 Qb3 41. Qb4 Qxb4 42. cxb4 Ra7 43. Rc2 Kg8 44. Rfc1 Bd8 45. b5 Rb7 46. Rb1 Rb6 47. Ra2 Kf8 48. Kf2 Ke7 49. Ke3 Rb7 50. Kd4 Ke8 51. Ra8 Ke7 52. Rb3 Nd7 53. Bh3 Ne5 54. Bc8 Rb6 55. Ba6 Nd7 56. Ra7 Ne5 57. Rb7 Nd7 58. Rxb6 cxb6 59. Bc8 Ne5 60. Ra3 Bc7 61. Ra7 Kd8 62. Be6 Nf3+ 63. Ke3 Ne5 64. Ke2 Nd7 65. Bxd7 Kxd7 66. Ke3 Kc8 67. Kd4 Kd7 68. e5 dxe5+ 69. Ke4 Kd6 70. Rxc7 Kxc7 71. Kxe5 Kd7 72. d6 1-0

[Event "Villa Martelli Pro Am op 15th"]
[Site "Villa Martelli"]
[Date "2008.10.14"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Landriel, Mario"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2155"]
[BlackElo "2272"]
[PlyCount "98"]
[EventDate "2008.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. 0-0 Bg4 7. h3 Bxf3 8. Bxf3 Nf6 9. Nd2 Nd7 10. Bg2 0-0 11. f4 Qc7 12. Nf3 b5 13. Rb1 b4 14. Kh2 a5 15. Be3 Rab8 16. g4 a4 17. Qe1 Nd4 18. Qf2 Nxf3+ 19. Qxf3 a3 20. b3 Bd4 21. Bd2 Kh8 22. h4 f6 23. Qh3 e6 24. Bf3 Nb6 25. Kg2 d5 26. h5 dxe4 27. dxe4 gxh5 28. Qxh5 Rbd8 29. Be2 Rg8 30. Kf3 Rd7 31. Rh1 Qc6 32. Bd3 c4 33. bxc4 Nxc4 34. Bxb4 f5 35. gxf5 Nb2 36. fxe6 Rdg7 37. Qd5 Rg3+ 38. Ke2 Rg2+ 39. Kf1 Qxd5 40. exd5 Nxd3 41. cxd3 Rxa2 42. e7 Rf2+ 43. Ke1 a2 44. Ra1 Rb2 45. Ba3 Rb1+ 46. Ke2 Bxa1 47. d6 Rxh1 48. d7 Bc3 49. e8Q Re1+ 0-1

[Event "Villa Martelli Pro Am op 15th"]
[Site "Villa Martelli"]
[Date "2008.10.12"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Rodriguez Vila, Andres"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2155"]
[BlackElo "2508"]
[PlyCount "54"]
[EventDate "2008.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 d6 2. d3 g6 3. g3 c5 4. Bg2 Nc6 5. Nf3 Bg7 6. 0-0 Rb8 7. c3 e5 8. a4 a6 9. Be3 Nf6 10. h3 0-0 11. Qc1 c4 12. dxc4 Nxe4 13. Nh4 f5 14. Bh6 Na5 15. Bxg7 Kxg7 16. Qc2 Qb6 17. Na3 Be6 18. c5 dxc5 19. Bxe4 fxe4 20. Qxe4 Rbe8 21. Qxe5+ Kg8 22. b4 cxb4 23. cxb4 Nb3 24. a5 Qxb4 25. Nc2 Qd2 26. Rae1 Qxc2 27. Re2 Qc5 0-1

[Event "Villa Martelli Pro Am op 15th"]
[Site "Villa Martelli"]
[Date "2008.10.10"]
[Round "1"]
[White "Morales, Marcos"]
[Black "Arenas, Sergio"]
[Result "0-1"]
[ECO "B00"]
[BlackElo "2155"]
[PlyCount "38"]
[EventDate "2008.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 e5 3. d5 Nce7 4. f4 exf4 5. Bxf4 Ng6 6. Be3 Qh4+ 7. Bf2 Qxe4+ 8. Be2 Nf6 9. Nd2 Qxd5 10. Ngf3 Bc5 11. 0-0 Bxf2+ 12. Rxf2 0-0 13. h3 Qc5 14. a4 d5 15. Nb3 Qe3 16. Qd2 Qxf2+ 17. Kxf2 Ne4+ 18. Ke3 Nxd2 19. Nbxd2 c5 0-1

[Event "Buenos Aires Torre Blanca 1st"]
[Site "Buenos Aires"]
[Date "2008.08.18"]
[Round "4"]
[White "Arenas, Sergio"]
[Black "Stacchiotti, Osvaldo"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2155"]
[PlyCount "78"]
[EventDate "2008.08.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. c3 0-0 5. Nbd2 d6 6. e4 h6 7. Bh4 c5 8. Bd3 b6 9. 0-0 Nc6 10. d5 Ne5 11. Nxe5 dxe5 12. Nc4 Nh5 13. Ne3 Nf4 14. Bc4 Qd6 15. Bb3 g5 16. Bg3 Qg6 17. Bc2 Rd8 18. a4 h5 19. f3 e6 20. c4 a5 21. Kh1 Ra7 22. Ra3 f5 23. Rb3 Rd6 24. Be1 Bf6 25. g3 Nh3 26. exf5 exf5 27. Qb1 e4 28. fxe4 fxe4 29. Bxe4 Qe8 30. Bf5 Bd4 31. Bxc8 Qxc8 32. Nf5 Rf6 33. Kg2 g4 34. Nxd4 Rxf1 35. Kxf1 cxd4 36. Kg2 Qe8 37. Qd3 Re7 38. Bd2 Re2+ 39. Kf1 Rf2# 0-1

[Event "Buenos Aires Torre Blanca 1st"]
[Site "Buenos Aires"]
[Date "2008.08.11"]
[Round "2"]
[White "Arenas, Sergio"]
[Black "Olivera, Horacio"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "2155"]
[BlackElo "2256"]
[PlyCount "43"]
[EventDate "2008.08.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 Bg4 4. Nc3 Nbd7 5. e3 e5 6. Be2 Be7 7. 0-0 0-0 8. b3 c6 9. Bb2 Re8 10. dxe5 dxe5 11. Na4 Qc7 12. Qc2 Bf8 13. Rad1 Rad8 14. e4 Bxf3 15. Bxf3 Nc5 16. Nxc5 Bxc5 17. Rxd8 Rxd8 18. Rd1 Rxd1+ 19. Qxd1 Nd7 20. Bg4 Nf6 21. Bf3 Nd7 22. Bg4 1/2-1/2

[Event "Buenos Aires Torre Blanca 1st"]
[Site "Buenos Aires"]
[Date "2008.08.07"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Ciurlanti, Federico"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2155"]
[BlackElo "2140"]
[PlyCount "147"]
[EventDate "2008.08.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 Nf6 3. Bxf6 exf6 4. e3 d5 5. c4 c6 6. Nc3 Qb6 7. cxd5 Qxb2 8. Qc1 Ba3 9. Nge2 Qxc1+ 10. Rxc1 Bxc1 11. Nxc1 0-0 12. Bc4 Kh8 13. Nd3 Nd7 14. dxc6 Nb6 15. Bb3 bxc6 16. Nc5 Rd8 17. 0-0 f4 18. Rc1 fxe3 19. fxe3 Nd5 20. Kf2 Rb8 21. Ne2 Bg4 22. Ng3 Rb5 23. h3 Bc8 24. Ne2 Nb4 25. Rc3 Nd5 26. Rc1 Nb4 27. Rc3 f5 28. g3 g5 29. h4 h6 30. hxg5 hxg5 31. Kf3 Rd6 32. Rc1 Kg7 33. Nc3 Rb6 34. Nd1 Bd7 35. Nb2 Be8 36. Nc4 Bh5+ 37. Kg2 Rf6 38. Nxb6 axb6 39. Ne6+ Kg6 40. a3 Nd5 41. Bxd5 cxd5 42. Nc7 Rd6 43. Kf2 Kf6 44. Rb1 Bf7 45. Rb5 Ke7 46. Na8 Be8 47. Rb2 Kd8 48. Nxb6 Kc7 49. Na8+ Kc8 50. Rb6 Bc6 51. a4 Kd7 52. Rb8 Bxa8 53. Rxa8 Rb6 54. a5 Rb2+ 55. Kf3 Ra2 56. a6 Kc7 57. a7 Kb7 58. Rd8 Rxa7 59. Rxd5 f4 60. gxf4 gxf4 61. Kxf4 Kc6 62. Rf5 Kd6 63. e4 Ra4 64. d5 Ra1 65. Rf6+ Ke7 66. Re6+ Kd7 67. Rh6 Rf1+ 68. Ke5 Rf7 69. Ra6 Re7+ 70. Kd4 Re8 71. e5 Rb8 72. Ra7+ Ke8 73. d6 Rb1 74. Kd5 1-0

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.21"]
[Round "9.3"]
[White "Ferro, Ezequiel"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2151"]
[BlackElo "2165"]
[PlyCount "12"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 1/2-1/2

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.20"]
[Round "8.4"]
[White "Arenas, Sergio"]
[Black "Devcic, Marcos"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2165"]
[BlackElo "2334"]
[PlyCount "30"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bg5 d6 5. Nbd2 Nbd7 6. e4 h6 7. Bh4 g5 8. Bg3 Nh5 9. Bd3 e6 10. 0-0 b6 11. Re1 Bb7 12. a4 a6 13. Qe2 Qe7 14. Nc4 Nxg3 15. hxg3 Nf6 1/2-1/2

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.19"]
[Round "7.2"]
[White "Villanueva, Mario Nicolas"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2210"]
[BlackElo "2165"]
[PlyCount "60"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 c6 5. Qb3 Qb6 6. c5 Qxb3 7. axb3 Nd7 8. b4 a6 9. b5 cxb5 10. Nxb5 Rc8 11. Nc3 Ngf6 12. b4 Be7 13. Bf4 0-0 14. e3 Nh5 15. Be2 Nxf4 16. exf4 Be4 17. 0-0 Bxf3 18. Bxf3 Bf6 19. Rfd1 b6 20. Rxa6 bxc5 21. bxc5 Nxc5 22. dxc5 Bxc3 23. c6 Rc7 24. f5 Rfc8 25. fxe6 fxe6 26. Rd3 Bf6 27. Rd1 Rxc6 28. Rxc6 Rxc6 29. Rxd5 Rc1+ 30. Rd1 Rxd1+ 1/2-1/2

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.16"]
[Round "6.5"]
[White "Arenas, Sergio"]
[Black "Quiroga, Facundo"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2165"]
[BlackElo "2290"]
[PlyCount "98"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 e6 7. c3 Nf6 8. Re1 0-0 9. d4 cxd4 10. cxd4 d5 11. e5 Ne4 12. Nc3 Nxc3 13. bxc3 Na5 14. Bg5 Qc7 15. Qd2 Nc4 16. Qf4 f5 17. exf6 Qxf4 18. Bxf4 Rxf6 19. Ne5 Nxe5 20. Bxe5 Rf8 21. Bxg7 Kxg7 22. Rab1 Rb8 23. Re5 Bd7 24. Bh3 Kf6 25. Rbe1 Rfe8 26. f4 Rbc8 27. R1e3 Rc6 28. Kf2 b5 29. a3 Ra6 30. g4 Rxa3 31. f5 g5 32. fxe6 Rxe6 33. Rf3+ Kg6 34. Ref5 Raa6 35. Rf7 Rad6 36. Bf1 Rf6 37. R7xf6+ Rxf6 38. Bd3+ Kg7 39. Rxf6 Kxf6 40. Bxh7 Bxg4 41. Bd3 Bd7 42. Ke3 a5 43. Kd2 g4 44. Ke3 Kg5 45. Be2 b4 46. cxb4 axb4 47. Bd1 Bb5 48. Bb3 Bc4 49. Bc2 Ba2 0-1

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.15"]
[Round "5.1"]
[White "Arenas, Sergio"]
[Black "Dolezal, Cristian"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2165"]
[BlackElo "2400"]
[PlyCount "39"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 f5 3. exf5 d5 4. d4 Bxf5 5. Bb5 e6 6. 0-0 Bd6 7. Re1 Nge7 8. Bg5 0-0 9. Nbd2 Nb4 10. Ba4 b5 11. Bb3 h6 12. Bh4 Qd7 13. Bg3 Ng6 14. a3 Nc6 15. c3 Nf4 16. Bc2 Nd3 17. Bxd3 Bxd3 18. Re3 Bh7 19. Qe1 Rae8 20. Qe2 1/2-1/2

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.14"]
[Round "4.5"]
[White "Montes de Oca, Juan Jose"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "C99"]
[WhiteElo "2173"]
[BlackElo "2165"]
[PlyCount "32"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 d6 6. Re1 b5 7. Bb3 Be7 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 cxd4 12. cxd4 Nc6 13. Nbd2 Nb4 14. Bb1 Qc7 15. d5 a5 16. a3 Na6 1/2-1/2

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.13"]
[Round "3.2"]
[White "Arenas, Sergio"]
[Black "Claverie, Raul Ricardo"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "2165"]
[BlackElo "2368"]
[PlyCount "96"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c6 3. g3 Bg4 4. Bg2 Nd7 5. 0-0 Bxf3 6. Bxf3 e5 7. d3 Ngf6 8. fxe5 Nxe5 9. Bg2 Be7 10. b3 Qc7 11. Bb2 h5 12. Qd2 0-0-0 13. Bh3+ Kb8 14. Bxe5 Qxe5 15. Qf4 Bd6 16. Qxe5 Bxe5 17. c3 d4 18. c4 h4 19. g4 Nh7 20. Bg2 h3 21. Be4 Ng5 22. Nd2 Rh4 23. Bf3 Bf4 24. Rad1 Be3+ 25. Kh1 Bxd2 26. Rxd2 Re8 27. Kg1 Re3 28. Kf2 Kc7 29. Kg3 Rh6 30. Kf4 Ne6+ 31. Kg3 Kd6 32. b4 c5 33. b5 b6 34. a4 Ke5 35. a5 f5 36. gxf5 Nf4 37. Kg4 g6 38. Kg5 Rxf3 39. exf3 Rh5+ 40. Kg4 gxf5+ 41. Kg3 Rg5+ 42. Kf2 bxa5 43. Rg1 Ng2 44. Ra2 Kf4 45. Rxa5 Rg7 46. Rga1 Ne3 47. Rxa7 Rg2+ 48. Ke1 Nc2+ 0-1

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.12"]
[Round "2.4"]
[White "Antonio, Jorge Carlos"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2096"]
[BlackElo "2165"]
[PlyCount "45"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 c6 3. dxc6 Nf6 4. Nf3 Nxc6 5. Bb5 Bg4 6. 0-0 e6 7. d4 Bd6 8. Bg5 h6 9. Bh4 0-0 10. c3 g5 11. Bg3 Ne7 12. Nbd2 Ng6 13. Qe1 Bxf3 14. Nxf3 Bxg3 15. fxg3 Qb6 16. Bd3 Ne7 17. Qd2 Kg7 18. Nxg5 hxg5 19. Qxg5+ Ng6 20. Rxf6 Qxb2 21. Rxg6+ fxg6 22. Qxg6+ Kh8 23. Qh7# 1-0

[Event "Buenos Aires Banfield op"]
[Site "Buenos Aires"]
[Date "2005.12.11"]
[Round "1.3"]
[White "Arenas, Sergio"]
[Black "Dellepiani, Fernando"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "2165"]
[BlackElo "2134"]
[PlyCount "81"]
[EventDate "2005.12.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Bg5 Nf6 4. c3 Be7 5. e3 Nbd7 6. Bd3 h6 7. Bh4 b6 8. Nbd2 Bb7 9. 0-0 0-0 10. Qe2 Ne4 11. Bxe7 Qxe7 12. Ne5 Nxe5 13. dxe5 Nxd2 14. Qxd2 f6 15. exf6 Rxf6 16. Bc2 e5 17. Bb3 Kh8 18. Qe2 c5 19. Rad1 c4 20. Bc2 e4 21. Rd4 Rd8 22. b3 b5 23. Rdd1 Qe5 24. bxc4 bxc4 25. Rb1 Bc8 26. Qd2 Qg5 27. Rb8 Rdf8 28. Kh1 Qe5 29. Rb5 Be6 30. Rb7 h5 31. Rxa7 h4 32. a4 h3 33. g3 Bg4 34. Kg1 Bf3 35. Re1 Bg2 36. f4 exf3 37. Kf2 Rb6 38. Rb1 Rxb1 39. Bxb1 Rb8 40. Bc2 Rb2 41. Rd7 1-0

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "2004.08.30"]
[Round "7"]
[White "Arenas, Sergio"]
[Black "Nogues, Alejandro"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2157"]
[BlackElo "2219"]
[PlyCount "107"]
[EventDate "2004.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. Bg5 h6 4. Bh4 c5 5. e3 Be7 6. c3 b6 7. Nbd2 Bb7 8. Bd3 cxd4 9. exd4 0-0 10. 0-0 d6 11. a4 Nc6 12. Qe2 Qd7 13. Rfe1 Rae8 14. Bg3 Rc8 15. Nc4 Ba6 16. Nxb6 Bxd3 17. Nxd7 Bxe2 18. Nxf6+ Bxf6 19. Rxe2 Rfd8 20. Nd2 Be7 21. Ree1 Rd7 22. b4 e5 23. d5 Nd8 24. Rec1 Bg5 25. f4 exf4 26. h4 Bf6 27. Bxf4 Rxc3 28. Ne4 Bd4+ 29. Kh1 Rd3 30. Rd1 Bxa1 31. Rxd3 Nb7 32. Rd1 Bb2 33. Rb1 Bd4 34. Rc1 f5 35. Ng3 g6 36. Bxh6 Bf2 37. Kh2 Nd8 38. Rc8 Kh7 39. Bg5 Nf7 40. Bf6 g5 41. hxg5 Nxg5 42. Bxg5 Kg6 43. Rg8+ Kh7 44. Rd8 Rg7 45. Bh4 Rg4 46. Kh3 Rxb4 47. Nxf5 Bxh4 48. Nxh4 Rxa4 49. Rxd6 Ra1 50. Rd7+ Kg8 51. d6 Rd1 52. Nf5 a5 53. Ra7 a4 54. d7 1-0

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "2004.08.26"]
[Round "6"]
[White "Galarce, Ruben"]
[Black "Arenas, Sergio"]
[Result "0-1"]
[ECO "B00"]
[BlackElo "2157"]
[PlyCount "130"]
[EventDate "2004.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 f5 3. e5 d6 4. d4 dxe5 5. dxe5 Qxd1+ 6. Kxd1 e6 7. Be3 Nge7 8. Bb5 Bd7 9. Nc3 h6 10. h4 Ng6 11. Re1 a6 12. Ba4 0-0-0 13. Kc1 Bb4 14. a3 Bxc3 15. bxc3 Ngxe5 16. Nxe5 Nxe5 17. Bb3 Nc6 18. f4 Rde8 19. Bd4 Rhg8 20. h5 g5 21. Be3 gxf4 22. Bxf4 Rxg2 23. Kb2 Nd8 24. Rh1 Nf7 25. Rag1 Reg8 26. Re1 Rf2 27. Be3 Rf3 28. Bd4 Ng5 29. Reg1 f4 30. Rh4 Rg3 31. Rxg3 fxg3 32. Rg4 e5 33. Rxg3 Re8 34. Be3 e4 35. Bxg5 hxg5 36. Kc1 g4 37. Bf7 Rf8 38. Bd5 Rf5 39. Bxe4 Rxh5 40. Kd2 Re5 41. Bg2 Bf5 42. Bf1 Ra5 43. Be2 Rxa3 44. Bxg4 Bxg4 45. Rxg4 b5 46. Kd3 Ra1 47. c4 b4 48. c5 a5 49. Kc4 Kb7 50. Kb5 c6+ 51. Kc4 Ra3 52. Rg7+ Ka6 53. Rc7 Rc3+ 54. Kd4 Rxc2 55. Rxc6+ Kb5 56. Rb6+ Ka4 57. c6 b3 58. Kd3 Rc5 59. Kd4 Rc2 60. Kd3 Ka3 61. Ra6 a4 62. Rb6 Kb2 63. Rb4 a3 64. Rc4 Rxc4 65. Kxc4 a2 0-1

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "2004.08.23"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Chattah, Jose Carlos"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "2157"]
[PlyCount "89"]
[EventDate "2004.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 0-0 6. Bd3 Bg4 7. h3 Bd7 8. Ne5 Nc6 9. Nxd7 Qxd7 10. Nf3 a6 11. a4 Ne4 12. Bf4 Nd6 13. 0-0 f6 14. Bxd6 cxd6 15. c3 e5 16. Bc2 f5 17. Bb3 Ne7 18. Qe2 e4 19. Nd2 Kh8 20. c4 f4 21. Qg4 Qxg4 22. hxg4 dxc4 23. Nxc4 d5 24. Nb6 Rad8 25. Rac1 Rd6 26. a5 Bh6 27. Rc7 fxe3 28. Rxe7 exf2+ 29. Kh2 Bg5 30. Rxb7 e3 31. Bd1 Rf4 32. Be2 Rxd4 33. Bxa6 Rxg4 34. Be2 Rh4+ 35. Kg3 Rb4 36. a6 Rd8 37. a7 Rf8 38. Rf7 Rd8 39. a8Q Rxa8 40. Nxa8 Rxb2 41. Kf3 Rb8 42. Nc7 Kg8 43. Rd7 Rf8+ 44. Kg4 Rf5 45. Rxd5 1-0

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "2004.08.19"]
[Round "4"]
[White "Gabancho, Rodrigo"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "D06"]
[BlackElo "2157"]
[PlyCount "104"]
[EventDate "2004.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Qb3 Nc6 5. e3 Nb4 6. e4 Bxe4 7. Nxe4 dxe4 8. Be3 a5 9. a3 a4 10. Qd1 Nc6 11. Ne2 Nf6 12. Nc3 Qd7 13. Qd2 Be7 14. Be2 0-0 15. g4 Rfd8 16. 0-0-0 Na5 17. Qc2 Qc6 18. g5 Nb3+ 19. Kb1 Ne8 20. Qxe4 Qxe4+ 21. Nxe4 Nd6 22. Nxd6 Rxd6 23. Bf3 c6 24. d5 cxd5 25. Bf4 Rb6 26. cxd5 exd5 27. Bxd5 Bc5 28. Be3 Bxe3 29. fxe3 Re8 30. Rhf1 Kh8 31. Rxf7 h6 32. e4 Nc5 33. Rd4 hxg5 34. Rc7 Rb5 35. Bc4 Ra5 36. Rd5 b6 37. Rxg5 Nxe4 38. Rxa5 bxa5 39. Bb5 Re5 40. Bxa4 Nd2+ 41. Kc1 Nf3 42. Rc3 Re1+ 43. Bd1 Ne5 44. Kd2 Rh1 45. h3 Rh2+ 46. Be2 g5 47. b4 axb4 48. axb4 Rf2 49. b5 Rf6 50. Rb3 Nd7 51. Rg3 Nc5 52. Rf3 Rd6+ 1/2-1/2

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "2004.08.12"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Rodriguez Colomba, Marcelo"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2157"]
[PlyCount "39"]
[EventDate "2004.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. Bf4 Nf6 4. e3 Nbd7 5. c4 c6 6. Nc3 Qa5 7. cxd5 exd5 8. Qc2 Bb4 9. Bd3 0-0 10. 0-0 Re8 11. Bf5 Bxc3 12. bxc3 Ne4 13. Bxe4 dxe4 14. Nd2 Nf6 15. Be5 Rxe5 16. Nc4 Qd5 17. Nxe5 b6 18. c4 Qe6 19. a4 Ne8 20. Qxe4 1-0

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "2004.08.09"]
[Round "2"]
[White "Axarlian, Carlos"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "B07"]
[BlackElo "2157"]
[PlyCount "121"]
[EventDate "2004.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 Nf6 2. d4 d6 3. Bc4 Nc6 4. Nc3 a6 5. a4 g6 6. Nge2 Bg7 7. 0-0 0-0 8. Bb3 e5 9. dxe5 dxe5 10. Bg5 Ne7 11. Qc1 c6 12. Rd1 Qc7 13. h3 a5 14. Qd2 Kh8 15. Qd6 Qxd6 16. Rxd6 Neg8 17. Rad1 h6 18. Be3 Ne8 19. R6d2 Bf6 20. Nc1 Nc7 21. Bc5 Be7 22. Bxe7 Nxe7 23. Rd8 Rxd8 24. Rxd8+ Kg7 25. Nd3 f6 26. Nc5 b6 27. Nd7 b5 28. axb5 cxb5 29. Nb6 Rb8 30. Ncd5 Nexd5 31. exd5 Rxb6 32. Rxc8 Na6 33. c4 a4 34. Ba2 bxc4 35. Bxc4 Nb8 36. Rc7+ Kf8 37. Ra7 Rb4 38. Bd3 e4 39. Bc2 Rxb2 40. Bxa4 Rb6 41. Kf1 Ra6 42. Rxa6 Nxa6 43. Ke2 Nc5 44. Bc2 Ke7 45. Ke3 f5 46. Kd4 Kd6 47. g4 Na6 48. gxf5 gxf5 49. Bxe4 fxe4 50. Kxe4 Ke7 51. Ke5 Nc5 52. d6+ Kf7 53. f4 Nd7+ 54. Kf5 Nb6 55. Ke5 Nc4+ 56. Kd5 Nxd6 57. Kxd6 Kf6 58. Kc6 Kf5 59. Kd5 Kxf4 60. Kd4 Kg3 61. Ke3 1/2-1/2

[Event "Torre Blanca op"]
[Site "Buenos Aires"]
[Date "2004.08.05"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Glinz, Gustavo Adolfo"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "2157"]
[BlackElo "2104"]
[PlyCount "72"]
[EventDate "2004.08.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 c5 4. e3 Bg7 5. Nc3 0-0 6. d5 d6 7. h3 e5 8. e4 Ne8 9. Bd3 f5 10. Bg5 Nf6 11. Qc2 h6 12. Bxf6 Qxf6 13. 0-0-0 Na6 14. a3 Bd7 15. h4 Rab8 16. h5 g5 17. exf5 Bxf5 18. Bxf5 Qxf5 19. Qxf5 Rxf5 20. Ne4 Bf8 21. Nh2 b5 22. cxb5 Rxb5 23. Ng4 Kg7 24. Ne3 Rf4 25. f3 Nc7 26. Nc4 Ne8 27. Kc2 Kf7 28. Rd3 Ke7 29. Rb3 Rxb3 30. Kxb3 Kd7 31. Ka4 Nc7 32. Ne3 Be7 33. Rd1 Na8 34. Kb5 Nc7+ 35. Kc4 Na8 36. Kb5 Nc7+ 1/2-1/2

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.28"]
[Round "10"]
[White "Arenas, Sergio"]
[Black "Walsh, Hector"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2155"]
[BlackElo "2156"]
[PlyCount "80"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. g3 Nc6 4. Bg2 g6 5. 0-0 Bg7 6. d3 e6 7. Nbd2 Nge7 8. c3 0-0 9. Re1 b5 10. Nf1 a5 11. d4 cxd4 12. cxd4 d5 13. e5 Qb6 14. g4 Ba6 15. Bg5 Rfc8 16. Qd2 Ra7 17. Bf6 Bf8 18. h4 Rac7 19. h5 Nb4 20. Ne3 Nc2 21. Nxc2 Rxc2 22. Qg5 Nc6 23. hxg6 fxg6 24. Nh4 Nxd4 25. Re3 Qa7 26. Rf1 b4 27. Rfe1 Rxb2 28. Nxg6 hxg6 29. Rh3 Bg7 30. Qxg6 Qf7 31. Qg5 Rcc2 32. Qh4 Qg6 33. Bxg7 Qxg7 34. Qd8+ Kf7 35. Qd7+ Kf8 36. Qd8+ Kf7 37. Qd7+ Kg6 38. Qe8+ Kg5 39. f4+ Kxf4 40. Rf1+ Bxf1 0-1

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.27"]
[Round "9"]
[White "Andrade, Roberto Luiz Costa"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2309"]
[BlackElo "2155"]
[PlyCount "77"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 f5 3. exf5 d5 4. Nh4 e5 5. Qh5+ g6 6. fxg6 Nf6 7. Qg5 Bc5 8. g7 Rg8 9. d4 Bxd4 10. Bd3 e4 11. Be2 Be6 12. c3 Be5 13. f4 Bd6 14. Bh5+ Nxh5 15. Qxh5+ Bf7 16. Qxh7 Qf6 17. Nf5 0-0-0 18. Nxd6+ Rxd6 19. 0-0 d4 20. cxd4 Qxd4+ 21. Kh1 Rxg7 22. Qh3+ Kb8 23. Nc3 Qc4 24. Be3 Nb4 25. b3 Qc6 26. Rac1 Nd3 27. Rc2 Rh6 28. Bxa7+ Kxa7 29. Nb5+ Qxb5 30. Qxh6 Nb4 31. Rcf2 Rg6 32. Qh8 Nd3 33. Rc2 Qb6 34. Qf8 Qa6 35. Qxf7 Nb4 36. Rc4 Rf6 37. Qe7 Nd5 38. Qc5+ Nb6 39. Ra4 1-0

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.26"]
[Round "8"]
[White "Lemos, Damian"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2206"]
[BlackElo "2155"]
[PlyCount "175"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nf3 Nf6 4. Nc3 e6 5. Bf4 c6 6. Qb3 Qb6 7. c5 Qxb3 8. axb3 Nbd7 9. e3 a6 10. b4 Rc8 11. Nh4 Bg6 12. Nxg6 hxg6 13. h3 Be7 14. Bd3 0-0 15. 0-0 Rfe8 16. Rfe1 Bf8 17. Bg3 e5 18. f4 Nh5 19. Bh2 e4 20. Be2 f5 21. Kf2 Be7 22. Rg1 Kf7 23. Nb1 Rh8 24. Nd2 Nhf6 25. Rh1 Ne8 26. Nb3 Nc7 27. Bg1 Nf6 28. g3 Ne6 29. Kg2 g5 30. fxg5 Nxg5 31. Rf1 Ke6 32. Na5 Rc7 33. g4 g6 34. Bh2 Rd7 35. Bg3 Nf7 36. Rf2 fxg4 37. hxg4 Rxh1 38. Kxh1 Bd8 39. Bh4 g5 40. Bg3 Nh6 41. Bf1 Bxa5 42. bxa5 Nhxg4 43. Re2 Rh7+ 44. Kg1 Ne8 45. Be1 Ng7 46. Rg2 Nxe3 47. Rxg5 Nxf1 48. Kxf1 Nf5 49. Bc3 Rh2 50. Rg8 e3 51. Rg2 Rh4 52. Ke2 Rf4 53. Kd3 Rf1 54. Ke2 Rh1 55. Rg6+ Kf7 56. Rg5 Rh2+ 57. Kd3 Kf6 58. Rg8 Rh7 59. Rg2 Re7 60. Ke2 Re4 61. Kd3 Rf4 62. Rg8 Ne7 63. Rb8 Re4 64. Ke2 Ng6 65. Rxb7 Nf4+ 66. Kf3 e2 67. Rb6 Nd3 68. Rxc6+ Kf5 69. Rxa6 e1Q 70. Bxe1 Nxe1+ 71. Kg3 Rxd4 72. Rb6 Rg4+ 73. Kh3 Rg7 74. a6 Kf4 75. Rb4+ Kf3 76. Rb3+ Kf2 77. Kh4 Ng2+ 78. Kh5 Nf4+ 79. Kh4 Ng2+ 80. Kh5 Nf4+ 81. Kh4 Ra7 82. Kg4 Ne6 83. Rb6 Nxc5 84. Rb5 Nd7 85. Kf5 d4 86. Ke4 Rxa6 87. Kxd4 Rd6+ 88. Rd5 1/2-1/2

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.25"]
[Round "7"]
[White "Arenas, Sergio"]
[Black "Bielicki, Carlos"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2155"]
[BlackElo "2289"]
[PlyCount "62"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c3 Nbd7 4. Bg5 h6 5. Bh4 g6 6. Nbd2 Bg7 7. e4 e5 8. Bc4 0-0 9. 0-0 Qe7 10. Re1 Re8 11. a4 a5 12. Qb3 Rf8 13. Qa3 Qe8 14. Bb5 Kh7 15. Bxf6 Bxf6 16. Rad1 Kg7 17. Nc4 Be7 18. d5 Qd8 19. b4 axb4 20. cxb4 f5 21. exf5 gxf5 22. Qc3 Nf6 23. Nfxe5 dxe5 24. Nxe5 Kh7 25. Qg3 Rg8 26. Qf4 Qf8 27. Re3 Bd6 28. Rh3 Ng4 29. Re1 Qg7 30. Qxg4 fxg4 31. Bd3+ Kh8 0-1

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.23"]
[Round "6"]
[White "Perdomo, Leandro Daniel"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2304"]
[BlackElo "2155"]
[PlyCount "89"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nf3 e6 4. Nc3 Nf6 5. Bf4 c6 6. e3 Nbd7 7. Qb3 Qb6 8. Qxb6 axb6 9. Nh4 Bb4 10. Nxf5 exf5 11. Bd3 dxc4 12. Bxc4 Ne4 13. Rc1 b5 14. Bb3 Nb6 15. f3 Nf6 16. Kf2 Bxc3 17. bxc3 Nfd5 18. Bg3 Nc4 19. e4 f4 20. exd5 fxg3+ 21. hxg3 cxd5 22. Rh5 Nb6 23. Re1+ Kf8 24. Bxd5 g6 25. Rhe5 f6 26. Bxb7 fxe5 27. Bxa8 Nxa8 28. Rxe5 Kf7 29. Rxb5 Rc8 30. Rb3 Rc4 31. Ke3 Nc7 32. Kd3 Rc6 33. Rb7 Ke6 34. c4 Kd6 35. d5 Ra6 36. c5+ Kxc5 37. Rxc7+ Kxd5 38. Rxh7 Ra3+ 39. Ke2 Rxa2+ 40. Kf1 Ke5 41. Rf7 Ke6 42. Rf8 g5 43. Kg1 Ra7 44. f4 Ra1+ 45. Kh2 1-0

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.22"]
[Round "5"]
[White "Dorin, Mauricio"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2395"]
[BlackElo "2155"]
[PlyCount "113"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. e4 Nc6 2. Nc3 e6 3. d4 Bb4 4. Nf3 d6 5. a3 Bxc3+ 6. bxc3 Nf6 7. Bd3 e5 8. h3 0-0 9. 0-0 h6 10. Re1 Re8 11. a4 b6 12. Bb2 Bb7 13. Bb5 a6 14. Bxc6 Bxc6 15. d5 Bd7 16. a5 bxa5 17. c4 c5 18. dxc6 Bxc6 19. Nd2 Nd7 20. Re3 Nc5 21. Qe2 a4 22. Rg3 Ne6 23. Qe3 Nf4 24. Kh2 Rb8 25. Ba3 Re6 26. Rd1 Qc7 27. Rf3 Rg6 28. g3 Ne6 29. Qd3 Ng5 30. Re3 Qc8 31. Qf1 Bd7 32. h4 Nh7 33. Rd3 Rb6 34. c5 Rb8 35. c4 Nf6 36. Rxd6 Ng4+ 37. Kg1 Kh7 38. Qd3 Bc6 39. Rb1 Rxb1+ 40. Qxb1 Nf6 41. Qd3 Bb7 42. Kh2 Qg4 43. Qf3 Qxf3 44. Nxf3 Ng4+ 45. Kg1 Bxe4 46. Nd2 Bc6 47. Kf1 Rf6 48. f3 Ne3+ 49. Ke2 Nc2 50. Bb2 Rxd6 51. cxd6 f6 52. Kd3 Nb4+ 53. Kc3 Na2+ 54. Kc2 Nb4+ 55. Kc3 Na2+ 56. Kc2 Nb4+ 57. Kc3 1/2-1/2

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.21"]
[Round "4"]
[White "Arenas, Sergio"]
[Black "Alzate, Dario"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "2155"]
[BlackElo "2426"]
[PlyCount "40"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. a3 Nf6 4. e5 Nd5 5. axb4 d6 6. d4 dxe5 7. c4 Nf6 8. dxe5 Qxd1+ 9. Kxd1 Ng4 10. Be3 Nxe3+ 11. fxe3 Nc6 12. Nc3 Bg4+ 13. Kc1 e6 14. h3 Bf5 15. g4 Be4 16. Rh2 Be7 17. Bg2 Bxg2 18. Rxg2 Nxe5 19. Rb1 a5 20. Kc2 Rd8 0-1

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.19"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Cordero, Alfredo"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2155"]
[BlackElo "2323"]
[PlyCount "65"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Nxd4 Nc5 7. Bb5+ c6 8. Bd3 Be7 9. 0-0 0-0 10. Kh1 Nxd3 11. Qxd3 Qa5 12. Bd2 Qh5 13. h3 Ne8 14. f5 f6 15. g4 Qf7 16. Bf4 Nc7 17. Nf3 b6 18. Rg1 Ba6 19. Qd2 Rfd8 20. Qf2 Bb7 21. g5 Qh5 22. Kh2 fxg5 23. Bxg5 Rd7 24. Rg4 Bxg5 25. Rxg5 Qh6 26. Rag1 Rf8 27. R1g4 Ne8 28. Rh4 Qf6 29. Rgh5 h6 30. Qg3 Kf7 31. e5 dxe5 32. Ne4 Qd8 33. Qg6+ 1-0

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.18"]
[Round "2"]
[White "Estrada Nieto, Julian"]
[Black "Arenas, Sergio"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "2332"]
[BlackElo "2155"]
[PlyCount "56"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 f5 3. exf5 d5 4. d4 Bxf5 5. Bb5 e6 6. 0-0 Bd6 7. Bg5 Nge7 8. Nh4 0-0 9. Re1 h6 10. Nxf5 Rxf5 11. Bxc6 Rxg5 12. Bb5 Ng6 13. Bf1 Qf6 14. Nd2 Rf8 15. Qe2 Nf4 16. Qe3 Qf5 17. Kh1 Rf6 18. Nf3 Nh3 19. Bd3 Qg4 20. Nxg5 Nxf2+ 21. Kg1 Bxh2+ 22. Kxh2 hxg5 23. Bf5 Rxf5 24. Qxe6+ Kh7 25. Kg1 Nh3+ 26. Kh2 Nf4 27. Qxf5+ Qxf5 28. Rf1 Qxc2 0-1

[Event "American Continental 02nd"]
[Site "Buenos Aires"]
[Date "2003.08.17"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Pierrot, Juan Facundo"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2155"]
[BlackElo "2417"]
[PlyCount "64"]
[EventDate "2003.08.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 097"]
[Source "ChessBase"]
[SourceDate "2003.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.11"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 d5 5. Nbd2 Bd6 6. Bg2 Nge7 7. 0-0 0-0 8. Re1 f6 9. c3 Bd7 10. d4 cxd4 11. Nxd4 Nxd4 12. cxd4 Qb6 13. exd5 exd5 14. Nb3 Rfe8 15. Qh5 Kh8 16. Bd2 a5 17. Rac1 Bc6 18. Re6 a4 19. Rxd6 axb3 20. axb3 Qxd4 21. Bc3 Qd3 22. Qf7 Ng8 23. Qc7 Re7 24. Qb6 Rae8 25. Bf1 Qf5 26. Bd4 Re1 27. Rxe1 Rxe1 28. Qb4 Qb1 29. Rxf6 Rxf1+ 30. Kg2 Rg1+ 31. Kh3 gxf6 32. Bxf6+ Nxf6 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.29"]
[Round "8.20"]
[White "Arenas, Sergio"]
[Black "Chtcherbine, Andrei"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2255"]
[BlackElo "2148"]
[PlyCount "55"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 d6 4. 0-0 Nd7 5. e4 e6 6. d3 Ne7 7. c3 0-0 8. Be3 h6 9. Re1 Kh7 10. h3 f5 11. Nd4 Nf6 12. exf5 gxf5 13. Qb3 Nfd5 14. Bd2 Bxd4 15. cxd4 f4 16. Be4+ Ng6 17. g4 Qh4 18. Bxd5 exd5 19. Qxd5 Qxh3 20. Qg2 Qxd3 21. Bc3 f3 22. Qg3 Rf4 23. Re7+ Kg8 24. Rxc7 Be6 25. d5 Rxg4 26. Rg7+ Kf8 27. Rf7+ Ke8 28. Rxf3 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.28"]
[Round "6.21"]
[White "Arenas, Sergio"]
[Black "Ronco, Marcelo"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2255"]
[PlyCount "87"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 c5 3. Bg2 Nc6 4. d3 d5 5. 0-0 g6 6. Nbd2 Bg7 7. e4 Nge7 8. Qe2 0-0 9. c3 b6 10. e5 Ba6 11. Re1 h6 12. Nf1 Qc7 13. h4 Kh7 14. Bf4 Rae8 15. N1h2 Qd8 16. Ng4 d4 17. c4 Bb7 18. Nd2 h5 19. Nh2 Nf5 20. Nhf3 Nh6 21. Ne4 Qa8 22. Nd6 Rd8 23. Ng5+ Kg8 24. Nge4 Nf5 25. Bg5 Nxd6 26. Nxd6 Rxd6 27. exd6 e5 28. Bd5 Nd8 29. Bxb7 Nxb7 30. Be7 Re8 31. Qe4 Qc8 32. Qd5 Qd7 33. Re4 Nd8 34. f4 exf4 35. Bxd8 Rxd8 36. Rxf4 Qxd6 37. Qxf7+ Kh7 38. Re1 Rf8 39. Qe7 Qb8 40. Re5 Re8 41. Qxe8 Bxe5 42. Qxb8 Bxb8 43. Rf7+ Kh6 44. Kg2 1-0

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.28"]
[Round "7.8"]
[White "Szmetan, Jorge"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2408"]
[BlackElo "2255"]
[PlyCount "51"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. e4 d6 4. h3 Nf6 5. Nc3 0-0 6. Be3 c6 7. a4 Nbd7 8. Nd2 e5 9. dxe5 dxe5 10. Nc4 Qe7 11. Qd6 Qxd6 12. Nxd6 Rd8 13. Bc4 Rf8 14. a5 Rb8 15. Bxa7 Ra8 16. Be3 b5 17. Bb3 Nb8 18. 0-0 Na6 19. Rfd1 Nh5 20. Ne2 Nc7 21. Nxc8 Rfxc8 22. Rd6 Nf6 23. Rxc6 Nxe4 24. Bb6 Na6 25. Bd5 Nec5 26. Rxc5 1-0

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.27"]
[Round "5.6"]
[White "Fiorito, Fabian"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2391"]
[BlackElo "2155"]
[PlyCount "95"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 f5 3. exf5 d5 4. d4 Bxf5 5. Bb5 e6 6. 0-0 Bd6 7. Re1 Nge7 8. Bg5 0-0 9. Nbd2 Nb4 10. Ba4 b5 11. Bb3 Nbc6 12. c3 Qd7 13. Nh4 Rae8 14. Nxf5 Nxf5 15. Nf3 h6 16. Bd2 Qf7 17. Qe2 a6 18. h3 Qh5 19. Qd3 Rf6 20. Bd1 Qg6 21. Bc2 Qh5 22. Ne5 Bxe5 23. dxe5 Rg6 24. Bd1 Qh4 25. Bg4 Rf8 26. g3 Rxg4 27. hxg4 Qxg4 28. Qe2 Qh3 29. Qf1 Qxf1+ 30. Rxf1 Nxe5 31. Kg2 Nc4 32. Bc1 Nb6 33. Re1 Kf7 34. Bf4 c5 35. b3 Rc8 36. a4 g5 37. Be5 bxa4 38. bxa4 Nc4 39. Rab1 Nxe5 40. Rxe5 Rc6 41. Re2 Kf6 42. Reb2 d4 43. cxd4 cxd4 44. Rb6 Rc2 45. Re1 Ne3+ 46. Kg1 Ng4 47. Rexe6+ Kf5 48. Re1 1-0

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.26"]
[Round "4.11"]
[White "Arenas, Sergio"]
[Black "Liascovich, Lucas Agustin"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2255"]
[BlackElo "2328"]
[PlyCount "149"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 Bf5 4. 0-0 e6 5. d3 Be7 6. Nbd2 0-0 7. Qe1 h6 8. e4 Bh7 9. Qe2 c5 10. Ne5 Nbd7 11. Nxd7 Qxd7 12. b3 Qc7 13. Bb2 Rfe8 14. f4 d4 15. a4 Rac8 16. g4 b6 17. h4 Nd7 18. g5 hxg5 19. fxg5 Qg3 20. Qf2 Qxf2+ 21. Rxf2 Ne5 22. Bh3 Bg6 23. Nc4 Nxc4 24. bxc4 Bh5 25. Bc1 Bd6 26. Bf4 Bxf4 27. Rxf4 Rc7 28. e5 g6 29. Bg2 Kg7 30. Rff1 Kf8 31. Rfb1 Rcc8 32. Kf2 Red8 33. Rb5 Rc7 34. a5 bxa5 35. Raxa5 Rdc8 36. Ke1 Bg4 37. Kd2 Kg7 38. Ke1 Bh5 39. Kf2 Kf8 40. Ke1 Kg7 41. Kd2 Bg4 42. Be4 Bf5 43. Bf3 Kf8 44. Ra6 Rd8 45. Rba5 Rdd7 46. Bc6 Rd8 47. Bf3 Rdd7 48. Rb5 Rd8 49. Rba5 Rdd7 50. Kc1 Kg7 51. Kb2 Bh3 52. Kb3 Rd8 53. Rxa7 Rxa7 54. Rxa7 Rh8 55. Rc7 Rxh4 56. Rxc5 Rf4 57. Be4 Rg4 58. Rc8 Rxg5 59. c5 Rxe5 60. Kc4 Rg5 61. c6 Ra5 62. c7 e5 63. Rd8 Ra3 64. Kd5 Rc3 65. Kd6 Rxc2 66. Bc6 Bf5 67. Rd7 e4 68. c8Q exd3 69. Qe8 d2 70. Rd8 Kh6 71. Qh8+ Kg5 72. Qxd4 Bg4 73. Qe3+ Kh4 74. Rh8+ Bh5 75. Bf3 1-0

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.25"]
[Round "3.21"]
[White "Nejanky, Maisa"]
[Black "Arenas, Sergio"]
[Result "0-1"]
[ECO "B00"]
[BlackElo "2255"]
[PlyCount "64"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nc3 Nf6 5. f4 Ng6 6. e5 Ng8 7. Nf3 d6 8. Bc4 Nh6 9. 0-0 Bg4 10. Qe1 Be7 11. exd6 Qxd6 12. Be3 c6 13. Rd1 Qc7 14. Ne4 0-0 15. h3 Bxf3 16. Rxf3 Nf5 17. Bf2 Rfe8 18. Qc3 a5 19. Ng5 Rf8 20. Qb3 Nh6 21. Bb6 Qc8 22. Ne6 a4 23. Qe3 Nf5 24. Qe2 Re8 25. Kh2 Bd6 26. Qd2 fxe6 27. g4 Nfh4 28. Rff1 Bc7 29. Be3 b5 30. Bd3 Rf8 31. Kh1 Qd8 32. Qc3 Qd5+ 0-1

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.24"]
[Round "2.33"]
[White "Arenas, Sergio"]
[Black "Hungaski, Robert Andrew"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2255"]
[PlyCount "68"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 c6 4. Nc3 Nf6 5. cxd5 exd5 6. Bg5 Bf5 7. e3 Nbd7 8. Bd3 Bxd3 9. Qxd3 Bd6 10. 0-0 0-0 11. Rab1 a5 12. Rfc1 Qe7 13. Na4 Rfc8 14. Qf5 Qe4 15. Qh3 Rc7 16. Nc3 Qg4 17. Qxg4 Nxg4 18. h3 Ngf6 19. Bxf6 Nxf6 20. Rc2 Re7 21. Ne1 Nd7 22. Nd3 Nb6 23. b3 a4 24. b4 Nc4 25. Re1 b5 26. Nc5 Bxc5 27. bxc5 b4 28. Nb1 f5 29. Nd2 Nxd2 30. Rxd2 Rb8 31. Rb1 Rb5 32. Rdb2 Reb7 33. Kf1 Kf7 34. Ke2 Ke6 1/2-1/2

[Event "Najdorf Memorial op"]
[Site "Buenos Aires"]
[Date "2002.09.23"]
[Round "1.30"]
[White "Buttner, Natalia"]
[Black "Arenas, Sergio"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "2255"]
[PlyCount "58"]
[EventDate "2002.09.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 e6 3. d4 d5 4. exd5 exd5 5. Bd3 Bd6 6. 0-0 Nge7 7. c3 0-0 8. Re1 Bf5 9. Bg5 Qd7 10. Qc2 Bxd3 11. Qxd3 Qf5 12. Qxf5 Nxf5 13. Nh4 Rae8 14. Nd2 Nfe7 15. Nf1 f6 16. Bd2 g5 17. Nf3 Ng6 18. Ne3 Nce7 19. g3 h5 20. Kg2 g4 21. Ng1 f5 22. Ne2 f4 23. gxf4 Bxf4 24. Nf1 Nh4+ 25. Kh1 Bxd2 26. Nxd2 Rxf2 27. Kg1 Ref8 28. Rad1 Rg2+ 29. Kh1 Rff2 0-1

[Event "Buenos Aires GP1"]
[Site "Buenos Aires"]
[Date "1994.??.??"]
[Round "2"]
[White "Arenas, Sergio"]
[Black "Amura, Claudia Noemi"]
[Result "0-1"]
[ECO "A15"]
[BlackElo "2320"]
[PlyCount "38"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. b3 dxc4 5. bxc4 Qd4 6. Nc3 Qxc4 7. Bb2 Bd6 8. Rc1 Qa6 9. Qb3 Nc6 10. Ne4 Nxe4 11. Bxe4 e5 12. Bd5 Na5 13. Bxf7+ Ke7 14. Qe3 Kxf7 15. Bxe5 Re8 16. Qf4+ Kg8 17. Nf3 Nc6 18. d4 Bxe5 19. dxe5 Nxe5 0-1

[Event "Acasusso Valle op"]
[Site "Acasusso"]
[Date "1994.??.??"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Paglilla, Carlos"]
[Result "0-1"]
[ECO "A46"]
[BlackElo "2400"]
[PlyCount "58"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 b6 5. d5 h6 6. Bxf6 gxf6 7. Nc3 d6 8. Bb5+ Bd7 9. Bd3 e5 10. Nh4 f5 11. Nxf5 c4 12. Be4 Qg5 13. h4 Qf6 14. Qh5 Na6 15. Rh3 Qg6 16. Qf3 Nc5 17. h5 Qg5 18. Rg3 Qf6 19. Nd4 Qxf3 20. Nxf3 f5 21. Bxf5 Bxf5 22. 0-0-0 Ne4 23. Nxe4 Bxe4 24. Nh4 Be7 25. Ng6 Bxg6 26. hxg6 0-0 27. Rh1 Kg7 28. Rg4 Rxf2 29. Rxc4 Bg5 0-1

[Event "Buenos Aires GP1"]
[Site "Buenos Aires"]
[Date "1994.??.??"]
[Round "4"]
[White "Arenas, Sergio"]
[Black "Perez Wertheim, Rodolfo"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "117"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 b6 4. Bg5 Bb7 5. Nbd2 g6 6. e3 Bg7 7. Bd3 0-0 8. 0-0 d6 9. Qe2 Nbd7 10. Rfe1 Qc7 11. e4 e5 12. dxe5 dxe5 13. Rad1 h6 14. Bh4 Nh5 15. Bg3 Rfd8 16. a4 a6 17. Bc2 b5 18. Nf1 Nb6 19. Rxd8+ Qxd8 20. axb5 Nxg3 21. hxg3 axb5 22. Qxb5 Qc7 23. Qe2 Ba6 24. Bd3 c4 25. Bb1 Na4 26. Ne3 Rb8 27. Nd5 Qc5 28. b4 Qa7 29. Qa2 Nb6 30. Rd1 Rd8 31. b5 Nxd5 32. Rxd5 Bb7 33. Rxd8+ Kh7 34. Ra8 Qxa8 35. Qxa8 Bxa8 36. Nd2 f5 37. f3 f4 38. Nxc4 fxg3 39. Kf1 g5 40. Nd6 h5 41. b6 h4 42. b7 Bxb7 43. Nxb7 Kg6 44. Ba2 Kf6 45. Nd6 Bf8 46. Nf5 Bc5 47. Nh6 Ke7 48. Bd5 Bb6 49. Bb7 Bc5 50. Bc8 Bb6 51. Ke2 Bc5 52. Kd3 Kd8 53. Bg4 Ke7 54. Kc4 Bd6 55. Kd5 Bc7 56. c4 Kf6 57. c5 Ke7 58. Kc6 Ba5 59. Kb7 1-0

[Event "Acasusso Valle op"]
[Site "Acasusso"]
[Date "1994.??.??"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Redondo, Mariano"]
[Result "1-0"]
[ECO "E69"]
[PlyCount "94"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 g6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 c6 7. Nc3 Nbd7 8. e4 e5 9. h3 Ne8 10. Bg5 f6 11. Be3 f5 12. dxe5 dxe5 13. exf5 gxf5 14. Bc5 Rf7 15. Re1 Qc7 16. Ba3 Nb6 17. Bf1 h6 18. c5 Nd7 19. Bc4 e4 20. Qb3 Nf8 21. Rad1 Be6 22. Bxe6 Nxe6 23. Qxe6 exf3 24. Rd3 Nf6 25. Qxf5 Nd7 26. Qe6 Nf8 27. Qg4 Nh7 28. Ne4 Raf8 29. Rd6 Kh8 30. b4 Qe7 31. Re6 Qc7 32. Bc1 Rg8 33. Rg6 Qe5 34. Bxh6 Nf6 35. Qh4 Nh7 36. Bf4 Qe8 37. Bd2 Rd7 38. Rd6 Re7 39. Rh6 Bxh6 40. Qxh6 Rg6 41. Bc3+ Kg8 42. Qf4 Qf7 43. Qd2 Qd5 44. Qxd5+ cxd5 45. Nf6+ Nxf6 46. Rxe7 Ne4 47. Bd4 Rd6 1-0

[Event "Buenos Aires GP1"]
[Site "Buenos Aires"]
[Date "1994.??.??"]
[Round "6"]
[White "Arenas, Sergio"]
[Black "Robledo, Nestor Daniel"]
[Result "1/2-1/2"]
[ECO "A11"]
[BlackElo "2305"]
[PlyCount "59"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 c6 5. Nf3 0-0 6. Bg2 d5 7. 0-0 a5 8. cxd5 cxd5 9. d4 Ne4 10. Nc3 Nxc3 11. Bxc3 Nc6 12. Ne5 Qd6 13. Nxc6 Qxc6 14. Qd2 b6 15. Rac1 Qd7 16. e4 Bb7 17. e5 Ba6 18. Rfe1 e6 19. Bb2 Rfc8 20. Ba3 Qd8 21. Bf1 Bxf1 22. Kxf1 Bf8 23. Bxf8 Qxf8 24. Re3 Rxc1+ 25. Qxc1 Rc8 26. Rc3 Rxc3 27. Qxc3 Qa3 28. Qc8+ Kg7 29. Qd8 Qxa2 30. Qf6+ 1/2-1/2

[Event "Buenos Aires GP1"]
[Site "Buenos Aires"]
[Date "1994.??.??"]
[Round "5"]
[White "Casafus, Ruben Andres"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "A54"]
[WhiteElo "2430"]
[PlyCount "69"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. g3 Nbd7 4. c4 e5 5. Nc3 Be7 6. Bg2 0-0 7. 0-0 c6 8. e4 Re8 9. Qc2 Bf8 10. Rd1 Qc7 11. h3 g6 12. Rb1 a6 13. b4 exd4 14. Nxd4 Ne5 15. Bg5 Bg7 16. c5 dxc5 17. bxc5 h6 18. Bc1 g5 19. Na4 Be6 20. Nxe6 Rxe6 21. f4 gxf4 22. gxf4 Ned7 23. e5 Nd5 24. Rxd5 cxd5 25. Bxd5 b5 26. Bxa8 bxa4 27. Bd5 Rg6+ 28. Qxg6 Qxc5+ 29. Kh2 Qxd5 30. Qg2 Qd3 31. e6 Ne5 32. fxe5 Kh7 33. Rb4 Bxe5+ 34. Bf4 Qd6 35. Qe4+ 1-0

[Event "Buenos Aires GP1"]
[Site "Buenos Aires"]
[Date "1994.??.??"]
[Round "7"]
[White "Cranbourne, Carlos Leon"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "C28"]
[WhiteElo "2290"]
[PlyCount "105"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 Nc6 2. Nc3 d6 3. f4 e5 4. Bc4 Nf6 5. d3 Bg4 6. Qd2 exf4 7. Qxf4 Ne5 8. Bb3 Be6 9. d4 Ng6 10. Qf1 Bxb3 11. axb3 a6 12. Nf3 Be7 13. Bd2 0-0 14. 0-0-0 a5 15. Rg1 d5 16. exd5 Nxd5 17. Nxd5 Qxd5 18. Qc4 c6 19. Qxd5 cxd5 20. Rge1 a4 21. bxa4 Rxa4 22. c3 b5 23. Ne5 Bd6 24. Nf3 Ne7 25. Kc2 Rfa8 26. Bf4 Nf5 27. Bxd6 Nxd6 28. Ne5 Ra2 29. Nd3 Nc4 30. Kb3 Kf8 31. Re2 R8a3+ 32. Kb4 Ra8 33. Rde1 Rc8 34. b3 Rxe2 35. Rxe2 Nd6 36. Nf4 f5 37. Nxd5 g5 38. Re6 Rc6 39. Ne3 Kf7 40. d5 f4 41. Ng4 Ra6 42. Ne5+ Kg7 43. c4 bxc4 44. bxc4 Nxc4 45. Rxa6 Nxe5 46. Kc5 g4 47. Kd4 Ng6 48. Ke4 Kf7 49. Rxg6 Kxg6 50. Kxf4 g3 51. hxg3 Kf6 52. g4 h6 53. Ke4 1-0

[Event "Acasusso Valle op"]
[Site "Acasusso"]
[Date "1994.??.??"]
[Round "6"]
[White "Garcia, Raimundo"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2395"]
[PlyCount "88"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nd5 Nxd5 10. cxd5 c6 11. Bc4 cxd5 12. Bxd5 Nc6 13. Bg5 Re8 14. Rc1 Nb4 15. Bc4 Nc6 16. Be3 Be6 17. Ke2 Bxc4+ 18. Rxc4 f5 19. Rd1 Rec8 20. Kf1 Rd8 21. Rxd8+ Rxd8 22. Ke2 f4 23. Bd2 Bf6 24. Bc3 Kf7 25. b4 Ke6 26. b5 Ne7 27. Ne1 Rc8 28. Rxc8 Nxc8 29. Kd3 Nb6 30. f3 Be7 31. Nc2 Bc5 32. Na1 Nd7 33. Nb3 b6 34. a4 g5 35. h3 Bd6 36. Kc4 h5 37. Be1 g4 38. hxg4 hxg4 39. a5 g3 40. axb6 axb6 41. Bc3 Nf8 42. Kd3 Ng6 43. Ke2 Nh4 44. Kf1 Ng6 1/2-1/2

[Event "Vicente Lopez op"]
[Site "Vicente Lopez"]
[Date "1993.??.??"]
[Round "5"]
[White "Aima, M."]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "A03"]
[PlyCount "131"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 g6 3. e3 Bg7 4. Bb5+ Bd7 5. Qe2 a6 6. Bd3 c5 7. c3 Nc6 8. 0-0 Nf6 9. Bc2 c4 10. d4 cxd3 11. Bxd3 Ne4 12. Nbd2 f5 13. Nb3 0-0 14. Bd2 Rc8 15. Be1 e6 16. Bh4 Bf6 17. Bxf6 Qxf6 18. Nbd4 Nc5 19. Bc2 Nxd4 20. Nxd4 e5 21. fxe5 Qxe5 22. Rad1 Qe7 23. Rfe1 Rfe8 24. Qd2 Rcd8 25. Nf3 Bc6 26. Qd4 Ne4 27. Bxe4 Qxe4 28. Qxe4 Rxe4 29. Rd4 Ree8 30. Kf2 Rd7 31. Rb4 b5 32. Nd4 Ba8 33. a4 bxa4 34. Rxa4 Bb7 35. Ra5 Rde7 36. Rc5 Re5 37. Rc7 Bc8 38. Nc6 Re4 39. Nb4 R4e5 40. b3 a5 41. Nc6 Re4 42. Nd4 Ba6 43. g3 g5 44. h3 Bc8 45. Rc5 Kh8 46. Nb5 Rd8 47. Rc1 a4 48. b4 Rc4 49. Rxc4 dxc4 50. Nd4 Bd7 51. Rd1 Ra8 52. Nc2 Ra7 53. Na3 Rc7 54. Rd4 Be6 55. Kf3 Kg7 56. h4 h6 57. b5 Kf6 58. e4 fxe4+ 59. Kxe4 Rc8 60. Rd6 gxh4 61. gxh4 Rc5 62. Kd4 Rh5 63. b6 Rxh4+ 64. Kc5 Rh2 65. b7 Rb2 66. Rb6 1-0

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "2"]
[White "Alonso Valiente, Alexis"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "E32"]
[PlyCount "77"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. f3 Bb7 6. Nh3 d6 7. a3 Bxc3+ 8. Qxc3 h6 9. e3 Nbd7 10. Be2 0-0 11. 0-0 Qe7 12. b4 e5 13. d5 Rfe8 14. Bb2 a5 15. Rfd1 Nh7 16. e4 Ng5 17. Nf2 Qf6 18. Nd3 Qg6 19. Kh1 Ba6 20. Nf2 h5 21. Bc1 Nh7 22. Bd3 Qf6 23. Be3 Rec8 24. Rdc1 c6 25. Qb2 c5 26. b5 Bb7 27. a4 g5 28. Qd2 Qg6 29. Be2 Kg7 30. Rg1 f6 31. g3 Rg8 32. Rg2 Kf7 33. Bd3 Ndf8 34. Kg1 Bc8 35. Kf1 Ra7 36. Ke2 g4 37. f4 Ke8 38. f5 Qf7 39. h4 1/2-1/2

[Event "Buenos Aires FMDA-B U18"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Alonso, Salvador"]
[Result "1-0"]
[ECO "B32"]
[PlyCount "81"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be6 7. N1c3 a6 8. Na3 Be7 9. Be3 Bg5 10. Qd2 Bxe3 11. fxe3 Qg5 12. Nc2 Nge7 13. 0-0-0 Rd8 14. Bd3 0-0 15. Rdf1 Na7 16. h4 Qh6 17. Nd5 Nxd5 18. exd5 Bg4 19. e4 Qxd2+ 20. Kxd2 b5 21. Ne3 Bd7 22. b3 Nc8 23. Rc1 Nb6 24. c5 dxc5 25. Rxc5 h5 26. Rhc1 g6 27. Rc7 f5 28. Rb7 Nc8 29. Rcc7 Rf7 30. exf5 gxf5 31. Bxf5 Rxf5 32. Rxd7 Rxd7 33. Rxd7 Rf8 34. Kd3 Re8 35. Ke4 Kf8 36. Nf5 Nb6 37. Rb7 Nc8 38. Rh7 Kg8 39. Rxh5 a5 40. Rh6 a4 41. Re6 1-0

[Event "Buenos Aires op1"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Alpern, Adrian"]
[Result "1-0"]
[ECO "A53"]
[BlackElo "2210"]
[PlyCount "115"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 Bg4 4. Nc3 c6 5. Bf4 Nbd7 6. Qc2 a6 7. a4 a5 8. e4 Bxf3 9. gxf3 e5 10. Be3 Nh5 11. 0-0-0 Be7 12. Bh3 Bf6 13. c5 exd4 14. Bxd7+ Kxd7 15. Bxd4 Bxd4 16. Rxd4 Qg5+ 17. Qd2 Qxc5 18. Rd1 Kc7 19. Rxd6 Nf6 20. Kb1 Rae8 21. Qf4 Qe5 22. Qxe5 Rxe5 23. f4 Re7 24. e5 Nh5 25. R1d4 g6 26. Rc4 Rd7 27. Nd5+ Kd8 28. Nb6 Rxd6 29. exd6 Re8 30. Rd4 Ng7 31. Nc4 Nf5 32. Rd2 Re4 33. Nxa5 Rb4 34. Kc2 Nd4+ 35. Kc3 c5 36. b3 Kd7 37. Rb2 Kxd6 38. Nc4+ Ke6 39. Ne5 Kd5 40. Nd3 Rxb3+ 41. Rxb3 Nxb3 42. Ne5 Nd4 43. Nxf7 Ne2+ 44. Kb3 Nxf4 45. a5 Ne6 46. Kc3 Nd4 47. Nd8 Nb5+ 48. Kc2 Nd6 49. Nxb7 Nb5 50. Nd8 Nc7 51. Kc3 Nb5+ 52. Kc2 Nc7 53. Nf7 Kc6 54. Ng5 h5 55. Ne4 Kb5 56. Kc3 Kxa5 57. Nxc5 Kb6 58. Nd3 1-0

[Event "Martinez Valle op2"]
[Site "Martinez Valle"]
[Date "1993.??.??"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Anelli, Antonio"]
[Result "0-1"]
[ECO "A30"]
[BlackElo "2320"]
[PlyCount "64"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 c5 3. c4 Nc6 4. Bg2 e5 5. 0-0 d5 6. b3 Be7 7. cxd5 Nxd5 8. Bb2 f6 9. Na3 0-0 10. e3 Bg4 11. h3 Bh5 12. g4 Bg6 13. d4 cxd4 14. exd4 Nf4 15. Qd2 Nxg2 16. Kxg2 Nxd4 17. Bxd4 exd4 18. Nb5 d3 19. Nbd4 Qd5 20. Qe3 Ba3 21. Qe6+ Qxe6 22. Nxe6 Rfc8 23. Nh4 Bf7 24. Nd4 Bb2 25. Ndf5 Bxa1 26. Ne7+ Kf8 27. Nxc8 Be5 28. f4 Bd5+ 29. Kg3 Bc7 30. Rd1 g5 31. Rxd3 gxh4+ 32. Kxh4 Bc6 0-1

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "7"]
[White "Arenas, Sergio"]
[Black "Araoz, Hernan"]
[Result "1/2-1/2"]
[ECO "A90"]
[PlyCount "123"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 d5 4. c4 e6 5. Nf3 c6 6. 0-0 Bd6 7. b3 Qe7 8. Bb2 0-0 9. Nbd2 Bd7 10. Rc1 Be8 11. Ne5 Bh5 12. Bf3 Bxf3 13. exf3 Qe8 14. Qe2 Bxe5 15. Qxe5 Nbd7 16. Qd6 Qf7 17. Rfe1 Rfe8 18. Qc7 Nf8 19. Qxf7+ Kxf7 20. Re2 Rad8 21. Rce1 g5 22. c5 Ng6 23. b4 a6 24. a4 Ra8 25. Nb3 Nf8 26. Nc1 a5 27. b5 cxb5 28. axb5 a4 29. Bc3 Ra7 30. Nd3 N6d7 31. Ra2 Rea8 32. Ra3 b6 33. c6 Nf6 34. Rea1 Ne8 35. Ne5+ Kg8 36. Bb4 Nc7 37. Bxf8 Kxf8 38. Nd7+ Ke7 39. Rb1 Ra5 40. Nxb6 Rxb5 41. Rxb5 Nxb5 42. Re3 Rd8 43. Nxa4 Kd6 44. Nc5 Re8 45. Nb3 Kxc6 46. Re2 Kd6 47. Ra2 Rc8 48. Ra6+ Rc6 49. Rxc6+ Kxc6 50. Kf1 h5 51. h3 Kd6 52. Ke2 e5 53. Ke3 f4+ 54. gxf4 gxf4+ 55. Kd3 Nxd4 56. Nxd4 exd4 57. Kxd4 h4 58. Kd3 Ke5 59. Kc3 d4+ 60. Kd3 Kd5 61. Kd2 Kc4 62. Kc2 1/2-1/2

[Event "Buenos Aires FMDA-B U18"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Bonaveri, Agustin"]
[Result "0-1"]
[ECO "A47"]
[BlackElo "2180"]
[PlyCount "172"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 Be7 5. c3 b6 6. Nbd2 Bb7 7. Bd3 d6 8. 0-0 h6 9. Bxf6 Bxf6 10. dxc5 dxc5 11. Bb5+ Bc6 12. Bxc6+ Nxc6 13. Qa4 Qc7 14. Ne4 Be7 15. Ne5 Rc8 16. f4 0-0 17. Nxc6 Qxc6 18. Qxc6 Rxc6 19. Rad1 Rfc8 20. Rd7 R8c7 21. Rd2 c4 22. Rfd1 Kf8 23. Kf2 b5 24. Kf3 Ke8 25. a3 Rb6 26. g4 Rcb7 27. h3 Rc6 28. Nd6+ Bxd6 29. Rxd6 Rxd6 30. Rxd6 Ke7 31. Rd4 Rb6 32. Ke2 a5 33. Kf3 Rc6 34. e4 f6 35. f5 Rc5 36. fxe6 Kxe6 37. Ke3 h5 38. Rd8 hxg4 39. hxg4 Rg5 40. Kf4 Rc5 41. Ra8 b4 42. axb4 axb4 43. cxb4 Rb5 44. Ra4 Kd6 45. Ke3 Rg5 46. Ra6+ Kd7 47. Kf4 Rb5 48. Ra7+ Ke6 49. Ra4 Kd6 50. Kf3 Ke6 51. Ke3 Rg5 52. Kd4 Rxg4 53. Ra5 Kd6 54. Rc5 g6 55. Ke3 Rg2 56. Rxc4 Rxb2 57. Kd3 g5 58. Kc3 Rb1 59. Kc2 Ra1 60. Kd3 Ra3+ 61. Kd4 Rb3 62. b5 Rxb5 63. Rc2 Rb4+ 64. Ke3 Rb3+ 65. Kd4 Rf3 66. Rg2 Ke6 67. Rg1 Ra3 68. Rf1 g4 69. Rf4 Rg3 70. Rf5 Rg1 71. Ke3 g3 72. Kf3 Re1 73. Rf4 Ke5 74. Rf5+ Ke6 75. Rf4 Rg1 76. Rf5 g2 77. Kf2 Re1 78. Kxg2 Rxe4 79. Rb5 Re5 80. Rxe5+ Kxe5 81. Kf3 Kf5 82. Kf2 Kf4 83. Kg2 Ke3 84. Kf1 Kf3 85. Kg1 f5 86. Kf1 f4 0-1

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "9"]
[White "Arenas, Sergio"]
[Black "De Anna, Marcos"]
[Result "1-0"]
[ECO "D12"]
[PlyCount "55"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 Bf5 5. Nc3 e6 6. Bd3 Bxd3 7. Qxd3 Nbd7 8. 0-0 Bd6 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Nf6 12. Qh4 0-0 13. b3 c5 14. Bb2 cxd4 15. Bxd4 Be7 16. Rad1 Qa5 17. g4 Rad8 18. g5 Nd7 19. Qe4 Qc7 20. h4 Rfe8 21. h5 e5 22. Be3 Bf8 23. Rd5 Qc6 24. Qg4 Nb6 25. Rxd8 Rxd8 26. Nxe5 Qc7 27. Nf3 Bd6 28. c5 1-0

[Event "Vicente Lopez op"]
[Site "Vicente Lopez"]
[Date "1993.??.??"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Etchelecu, Omar"]
[Result "1-0"]
[ECO "D13"]
[PlyCount "131"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 c6 2. c4 d5 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 e6 6. Bf4 a6 7. e3 Nc6 8. Bd3 Bd6 9. Ne5 0-0 10. 0-0 Qc7 11. Rc1 Qb8 12. Nxc6 bxc6 13. Bxd6 Qxd6 14. Na4 Nd7 15. Qc2 Nf6 16. Nb6 Rb8 17. Nxc8 Rfxc8 18. Bxa6 Rc7 19. a3 Rb6 20. Bd3 g6 21. b4 Ra7 22. Ra1 Nd7 23. f4 Kg7 24. Rfb1 Rc7 25. Qc3 Kg8 26. a4 h5 27. Ra2 c5 28. dxc5 Nxc5 29. bxc5 Rxb1+ 30. Bxb1 Rxc5 31. Qd2 Qb8 32. Bd3 Qa7 33. a5 d4 34. e4 Rc3 35. a6 Kg7 36. Rb2 Ra3 37. Rb7 Qc5 38. Rb5 Ra1+ 39. Kf2 Qa3 40. Rb2 Qe7 41. g3 Qa3 42. Be2 Qc5 43. Qc2 Qa5 44. Qd2 Qc5 45. Rc2 Qb6 46. Rb2 Qc5 47. Bd3 h4 48. g4 h3 49. Qb4 Qc1 50. Qxd4+ Kh7 51. Kg3 Qe1+ 52. Qf2 Qc3 53. Qd2 Rg1+ 54. Kxh3 Qg7 55. Qf2 Qc3 56. Qxg1 Qxd3+ 57. Qg3 Qxa6 58. Qf3 Qa8 59. g5 e5 60. Rc2 Qe8 61. Qg4 Kg7 62. f5 gxf5 63. exf5 Qb8 64. f6+ Kg6 65. Rc8 Qb3+ 66. Kh4 1-0

[Event "Olivos op"]
[Site "Olivos"]
[Date "1993.??.??"]
[Round "4"]
[White "Arenas, Sergio"]
[Black "Garbarino, Rodolfo"]
[Result "0-1"]
[ECO "C56"]
[BlackElo "2405"]
[PlyCount "82"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qh5 9. Nxe4 Be6 10. Nxd4 Qxd1 11. Rxd1 0-0-0 12. Be3 Nxd4 13. Bxd4 Bf5 14. Ng5 Bg6 15. c3 Re8 16. Re1 Be7 17. Nh3 f6 18. Nf4 Bf7 19. Nd3 b6 20. b4 Bd6 21. a4 Rxe1+ 22. Rxe1 Re8 23. Rxe8+ Bxe8 24. Nb2 Kd7 25. Nc4 Bf8 26. a5 Ke6 27. axb6 axb6 28. Nd2 Kd5 29. f4 Bxb4 30. Bxb6 Bxc3 31. Bxc7 Bxd2 32. Kf2 Ke4 33. g3 Bh5 34. Bb6 Bc3 35. Kg2 Bf3+ 36. Kf2 Bg4 37. Kg2 Bd4 38. Bc7 Bf3+ 39. Kh3 f5 40. Bb8 Bf6 41. Ba7 h6 0-1

[Event "Buenos Aires op1"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "4"]
[White "Arenas, Sergio"]
[Black "German, Gustavo"]
[Result "0-1"]
[ECO "E69"]
[PlyCount "80"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Qa5 10. Rb1 exd4 11. Nxd4 Ne5 12. b4 Qa6 13. b5 Qa5 14. Qb3 Nfd7 15. Na4 Nc5 16. Nxc5 dxc5 17. Nc2 Be6 18. Ne3 cxb5 19. Qxb5 Qxb5 20. Rxb5 b6 21. Nd5 Nxc4 22. Rd1 Rad8 23. Rb1 Kh8 24. Bf1 Nd6 25. f3 f5 26. Bg5 Rd7 27. Be7 Rf7 28. Bxd6 Rxd6 29. Kg2 Bd4 30. Rd2 g5 31. Bc4 h5 32. Rf1 Kg7 33. Rdd1 g4 34. hxg4 hxg4 35. Ne3 Bxe3 36. Rxd6 Bxc4 37. Re1 Bd4 38. fxg4 fxg4 39. e5 Rf2+ 40. Kh1 Be2 0-1

[Event "Buenos Aires op2"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Langier, Daniel"]
[Result "0-1"]
[ECO "A04"]
[BlackElo "2315"]
[PlyCount "58"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 f5 2. e4 fxe4 3. Ng5 e5 4. Nxe4 Nf6 5. Nbc3 Be7 6. d3 d5 7. Nxf6+ Bxf6 8. Qh5+ g6 9. Qh6 Nc6 10. h4 Nd4 11. h5 g5 12. Nxd5 Qxd5 13. Qxf6 Rf8 14. Qg7 Nxc2+ 15. Kd1 Nxa1 16. Bxg5 Qc5 17. Be2 Be6 18. h6 Bxa2 19. Bh5+ Bf7 20. Bxf7+ Rxf7 21. Qh8+ Kd7 22. Qxa8 Qc2+ 23. Ke1 Qxf2+ 24. Kd1 Qc2+ 25. Ke1 Qb1+ 26. Ke2 Qxb2+ 27. Bd2 Nb3 28. Rd1 Qd4 29. Rf1 Qg4+ 0-1

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Lorenzo, Fernando"]
[Result "1-0"]
[ECO "D13"]
[PlyCount "61"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. cxd5 cxd5 5. Bf4 Qb6 6. Nc3 Nc6 7. Na4 Qa5+ 8. Bd2 Qd8 9. e3 Ne4 10. Bb5 Bd7 11. 0-0 e6 12. Bxc6 Bxc6 13. Ne5 Bb5 14. Re1 Nxd2 15. Nc3 Nc4 16. Nxb5 Nxe5 17. dxe5 Bc5 18. Qa4 0-0 19. Rac1 Qe7 20. Rc2 a6 21. Nd4 Rfc8 22. Rec1 Qf8 23. Qd7 b6 24. Nc6 Kh8 25. b4 Rxc6 26. Qxc6 Rc8 27. Qb7 Rb8 28. Qxa6 Ra8 29. Qb5 Be7 30. Qxb6 Rb8 31. Qa6 1-0

[Event "Buenos Aires op1"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "6"]
[White "Arenas, Sergio"]
[Black "Madina Yadarola, Martin"]
[Result "0-1"]
[ECO "A46"]
[BlackElo "2260"]
[PlyCount "68"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 c5 2. c3 Nf6 3. Nf3 e6 4. Bg5 b6 5. e3 Bb7 6. Nbd2 h6 7. Bh4 d6 8. Bd3 Nbd7 9. Bg3 Nh5 10. e4 Nxg3 11. hxg3 e5 12. dxe5 dxe5 13. Bb5 a6 14. Bxd7+ Qxd7 15. Nxe5 Qe6 16. Nef3 0-0-0 17. Qe2 Kc7 18. 0-0 Be7 19. Qc4 Qf6 20. a4 Kb8 21. Rfd1 h5 22. Nf1 g5 23. Ne3 h4 24. Ng4 Qg7 25. gxh4 gxh4 26. Nfe5 Bd6 27. Rxd6 Rxd6 28. Nxf7 Rg6 29. Nxh8 Rxg4 30. Qe6 Bxe4 31. Qe8+ Ka7 32. g3 Rxg3+ 33. fxg3 Qxg3+ 34. Kf1 Bd3+ 0-1

[Event "Buenos Aires FMDA-B U18"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Moreno Carnero, Javier"]
[Result "0-1"]
[ECO "E61"]
[PlyCount "53"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 Nf6 6. Nge2 0-0 7. d4 cxd4 8. exd4 d6 9. 0-0 Bd7 10. h3 a6 11. Be3 Rb8 12. Rc1 Na5 13. b3 b5 14. c5 b4 15. Nb1 dxc5 16. dxc5 Qc8 17. Kh2 Rd8 18. Qe1 Bc6 19. Bxc6 Nxc6 20. f4 Rd3 21. Bg1 Qd7 22. Rc4 Rd8 23. Qf2 e5 24. fxe5 Nxe5 25. Rf4 Nd5 26. Re4 f5 27. Rh4 0-1

[Event "Buenos Aires op3"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[ECO "E15"]
[BlackElo "2450"]
[PlyCount "63"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 0-0 8. 0-0 c6 9. Qc2 d5 10. Rd1 Nbd7 11. Ne5 Rc8 12. Bc3 Bb7 13. Nd2 c5 14. Qb2 Qc7 15. Rac1 Nxe5 16. dxe5 d4 17. Bxd4 cxd4 18. exf6 Bxf6 19. Qb1 Rfd8 20. Bxb7 Qxb7 21. Qe4 Qxe4 22. Nxe4 Be7 23. f4 f5 24. Nf2 Bf6 25. Nd3 Re8 26. Kf2 Rcd8 27. Ne5 Bxe5 28. fxe5 Rd7 29. Rd3 Red8 30. Kf3 Kf7 31. Rcd1 Ke7 32. b4 1/2-1/2

[Event "San Fernando op"]
[Site "San Fernando"]
[Date "1993.??.??"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Soppe, Guillermo"]
[Result "0-1"]
[ECO "D38"]
[BlackElo "2460"]
[PlyCount "58"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. Bg5 h6 6. Bh4 dxc4 7. e3 b5 8. Ne5 Bb7 9. Rc1 Nbd7 10. Nxd7 Qxd7 11. Bxf6 gxf6 12. b3 Ba5 13. bxc4 b4 14. Nb1 b3+ 15. Nd2 bxa2 16. Qb3 c5 17. Qxa2 Bb4 18. f3 cxd4 19. exd4 a5 20. Qb2 0-0-0 21. d5 Kb8 22. Bd3 exd5 23. c5 Qe7+ 24. Kd1 Qe3 25. Bb5 Bxd2 26. Ba6 Bb4 27. c6 Bxa6 28. c7+ Ka7 29. cxd8Q Qd3+ 0-1

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Studenetzky, Moises A"]
[Result "1/2-1/2"]
[ECO "B00"]
[BlackElo "2220"]
[PlyCount "123"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 Bg4 5. Be3 e6 6. Be2 Be7 7. 0-0 0-0 8. Nd2 Bxe2 9. Qxe2 d5 10. e5 Nd7 11. f4 Nb4 12. Nb3 a5 13. a3 a4 14. Nc1 Nc6 15. Nd3 f5 16. g4 fxg4 17. Qxg4 Rf5 18. Nxd5 Nf8 19. Nxe7+ Nxe7 20. Rad1 Nd5 21. Bc1 Qe8 22. Ne1 Rd8 23. Ng2 Ng6 24. c4 Nb6 25. Ne3 Rf7 26. h4 Qf8 27. c5 Nc8 28. f5 exf5 29. Nxf5 Nce7 30. Nxe7+ Qxe7 31. Bg5 Rxf1+ 32. Rxf1 Qd7 33. Qxd7 Rxd7 34. e6 Rxd4 35. Rf7 h6 36. Be3 Re4 37. Bf2 Rxe6 38. Rxc7 Re7 39. Rxe7 Nxe7 40. Kg2 Kf7 41. Kf3 Ke6 42. Ke4 g5 43. hxg5 hxg5 44. Kd4 Nf5+ 45. Kc4 g4 46. Kb5 g3 47. Bg1 Kd7 48. Kb6 Kc8 49. c6 bxc6 50. Kxc6 Nh4 51. Kb5 Nf3 52. Be3 g2 53. Kxa4 g1Q 54. Bxg1 Nxg1 55. b4 Nf3 56. b5 Ne5 57. Kb4 Nd7 58. a4 Kb7 59. a5 Nb8 60. Kc5 Na6+ 61. Kd6 Nc7 62. b6 1/2-1/2

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Yabiansky, Marcelo"]
[Result "1-0"]
[ECO "E68"]
[BlackElo "2235"]
[PlyCount "58"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 c6 10. Be3 Re8 11. h3 Nc5 12. Qc2 Qe7 13. Rfe1 a5 14. Rad1 Bd7 15. b3 Qf8 16. f4 Qe7 17. Bf2 Nh5 18. Kh2 Rad8 19. Bf3 Qf6 20. Qe2 Ne6 21. Bxh5 gxh5 22. Qxh5 Qg6 23. Qxg6 hxg6 24. Nxe6 Bxe6 25. Bd4 Bxd4 26. Rxd4 Kf8 27. g4 Bc8 28. Red1 Ke7 29. Na4 f5 1-0

[Event "Buenos Aires FMDA-B U18"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "2"]
[White "Berrotaran, Esteban"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "D07"]
[PlyCount "60"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 e6 4. Nf3 h6 5. Bf4 a6 6. e3 Nf6 7. a3 Bd6 8. Ne5 0-0 9. g4 Bxe5 10. dxe5 Nd7 11. cxd5 Ncxe5 12. dxe6 fxe6 13. Be2 g5 14. Bg3 Ng6 15. Qc2 Kg7 16. 0-0-0 Qe7 17. Ne4 Nf6 18. h4 Nxe4 19. Qxe4 Bd7 20. Bd3 Rf6 21. hxg5 hxg5 22. Be5 Qc5+ 23. Bc3 e5 24. Qxb7 Qc6 25. Qxc6 Bxc6 26. Rh5 Bf3 27. Rg1 Rd8 28. Bc2 Kf7 29. Rxg5 Re8 30. Rg3 Rg8 1-0

[Event "San Fernando op"]
[Site "San Fernando"]
[Date "1993.??.??"]
[Round "3"]
[White "Conlazo, Eusebio"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "D85"]
[PlyCount "45"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Be2 Nc6 9. d5 Ne5 10. Nxe5 Bxe5 11. Bd2 0-0 12. 0-0 Qa5 13. Qc2 Rd8 14. f4 Bg7 15. c4 Bd4+ 16. Kh1 Qa3 17. Rab1 b6 18. Rf3 Qa6 19. f5 Bd7 20. Bc3 Qa4 21. Qb2 Rac8 22. Bxd4 cxd4 23. Ra3 1-0

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "6"]
[White "Dolezal, Cristian"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2255"]
[PlyCount "65"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. Nf3 Bb4 5. e5 Qd7 6. Bd3 b6 7. h4 Bb7 8. h5 f5 9. Bg5 Be7 10. Ne2 Nb4 11. Nf4 Nxd3+ 12. Qxd3 0-0-0 13. c3 Nh6 14. b4 a6 15. a4 Rde8 16. a5 Qc6 17. Ke2 Nf7 18. Bxe7 Rxe7 19. Rhc1 Qc4 20. Nd2 Qxd3+ 21. Nxd3 Rd8 22. Ke3 Red7 23. Nf4 Ng5 24. Nf3 Nxf3 25. Kxf3 Re7 26. Rcb1 Kb8 27. b5 Ka7 28. Nd3 bxa5 29. Nc5 c6 30. Rxa5 Kb6 31. bxa6+ Kxa5 32. Nxb7+ Rxb7 33. Rxb7 1-0

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "4"]
[White "Harper, Horacio Guillermo"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "A57"]
[PlyCount "101"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 d6 5. e4 b5 6. cxb5 a6 7. bxa6 Bxa6 8. Bxa6 Rxa6 9. Nf3 Bg7 10. 0-0 0-0 11. Bf4 Nbd7 12. Qc2 Qa8 13. a4 Rb8 14. Rab1 Ne8 15. b3 Nc7 16. Nd2 Nb6 17. Qd3 Qb7 18. Rfc1 Raa8 19. Be3 Nd7 20. Nc4 Ne5 21. Nxe5 Bxe5 22. f4 Bxc3 23. Qxc3 Qb4 24. Qd3 Ra7 25. Bd2 Qb6 26. Kh1 Na6 27. Rc4 Nc7 28. Qc2 Qa6 29. h3 Na8 30. a5 Rab7 31. Bc3 Nc7 32. Ra4 Qb5 33. Raa1 Na6 34. Qd2 Qd7 35. Qe2 Rxb3 36. Qc4 Qb7 37. Ra3 Nc7 38. Kh2 Qa6 39. f5 R3b7 40. Rf1 Nb5 41. fxg6 hxg6 42. e5 Qa7 43. e6 Rf8 44. exf7+ Rxf7 45. Rxf7 Kxf7 46. Ra4 Nxc3 47. Qxc3 Qb8 48. Rf4+ Ke8 49. Qg7 Kd7 50. Qxg6 Rb3 51. Qe6+ 1-0

[Event "San Fernando op"]
[Site "San Fernando"]
[Date "1993.??.??"]
[Round "5"]
[White "Herce, G."]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "A21"]
[PlyCount "61"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Ne7 5. e3 c6 6. Nge2 0-0 7. d4 d6 8. 0-0 Nd7 9. b4 Nb6 10. Qb3 exd4 11. exd4 Be6 12. d5 cxd5 13. Qd1 Rc8 14. Bf4 Rxc4 15. Nb5 Nec8 16. a3 a6 17. Nbd4 Ne7 18. Re1 Nc6 19. Be3 Nc8 20. Nxe6 fxe6 21. Bxd5 Rc3 22. Bxe6+ Kh8 23. Nxc3 Bxc3 24. Rc1 Bxe1 25. Rxc6 bxc6 26. Bd4+ Rf6 27. Qxe1 Nb6 28. Qc3 Kg7 29. Qxc6 Qe7 30. Bh3 d5 31. Qxb6 1-0

[Event "Florida Valle op"]
[Site "Florida Valle"]
[Date "1993.??.??"]
[Round "2"]
[White "Juarez, Carlos Eleodoro"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2285"]
[PlyCount "111"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 g6 5. Bg5 Bg7 6. Qd2 0-0 7. Bh6 Bg4 8. Bxg7 Kxg7 9. d5 Bxf3 10. gxf3 Ne5 11. Be2 e6 12. f4 Ned7 13. dxe6 fxe6 14. 0-0-0 Ng8 15. Bd3 Nh6 16. h4 Qf6 17. Ne2 e5 18. f5 gxf5 19. Ng3 Kh8 20. exf5 Nf7 21. Ne4 Qe7 22. Ng5 Nf6 23. f4 exf4 24. Ne6 Nd5 25. Nxf8 Rxf8 26. Rdf1 Qe3 27. Bc4 Nf6 28. Rxf4 Qxd2+ 29. Kxd2 Nh5 30. Rf2 Ne5 31. Bd3 Nf6 32. Rg1 Nfg4 33. Rf4 h5 34. Be2 Rf6 35. a4 Kh7 36. a5 Kh6 37. Rg3 c6 38. Rb4 b5 39. axb6 axb6 40. Rxb6 Rxf5 41. Ke1 Kg7 42. b4 Rf6 43. c4 Kf7 44. b5 cxb5 45. cxb5 Re6 46. Kd2 Ke7 47. Rb7+ Kf6 48. Ra7 Nf2 49. Re3 Nfg4 50. Rb3 Kg6 51. b6 Re8 52. b7 Rb8 53. Ra8 Nd7 54. Rxb8 Nxb8 55. Rc3 Nf6 56. Rc8 1-0

[Event "Olivos op"]
[Site "Olivos"]
[Date "1993.??.??"]
[Round "7"]
[White "Lida Garcia, Fernando"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2165"]
[PlyCount "117"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Nf6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 b6 6. Bb5+ c6 7. Bd3 0-0 8. Qe2 c5 9. c3 Bb7 10. 0-0 Nbd7 11. Rad1 Ne4 12. Bh4 f5 13. Ng5 Nxg5 14. Bxg5 h6 15. Bh4 g5 16. Bg3 e5 17. Bxe5 Bxe5 18. dxe5 Nxe5 19. Ba6 Bxa6 20. Qxa6 Qc7 21. Qe2 Ng4 22. g3 Rae8 23. Qf3 Qf7 24. Nb3 Rd8 25. Rd2 Ne5 26. Qg2 g4 27. Rc2 Nf3+ 28. Kh1 Qe6 29. Nd2 Ng5 30. Rfc1 Rfe8 31. h4 Ne4 32. Kg1 Rd7 33. Qf1 Red8 34. Rd1 Kg7 35. Nxe4 dxe4 36. Rxd7+ Qxd7 37. Re2 Qd3 38. Qe1 c4 39. Kf1 Kf6 40. Qc1 Ke5 41. Ke1 b5 42. Rd2 Qxd2+ 43. Qxd2 Rxd2 44. Kxd2 Kd5 45. Kc2 Kc5 46. Kd2 a5 47. Kc2 b4 48. h5 Kb5 49. Kd2 Ka4 50. Kc2 b3+ 51. Kb1 bxa2+ 52. Kxa2 Kb5 53. Ka3 Kc5 54. Ka2 Kb6 55. Kb1 Kb5 56. Ka1 Kc5 57. Ka2 Kd5 58. Ka3 Kc5 59. Ka2 1/2-1/2

[Event "Vicente Lopez op"]
[Site "Vicente Lopez"]
[Date "1993.??.??"]
[Round "2"]
[White "Minzer, Claudio Javier"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "2370"]
[BlackElo "1980"]
[PlyCount "51"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 e5 4. e3 g6 5. d4 d6 6. dxc5 dxc5 7. Qxd8+ Kxd8 8. g3 Nf6 9. b3 Bg7 10. Bb2 Re8 11. Bg2 a6 12. 0-0-0+ Kc7 13. Ng5 Be6 14. Nd5+ Bxd5 15. cxd5 Nd8 16. d6+ Kd7 17. Bh3+ Kc6 18. f4 h6 19. d7 Re7 20. Bxe5 hxg5 21. Rd6+ Kb5 22. Bf1+ Kb4 23. Rb6+ Ka3 24. Bb2+ Kxa2 25. Bc4 Re4 26. Kc2 1-0

[Event "Vicente Lopez op"]
[Site "Vicente Lopez"]
[Date "1993.??.??"]
[Round "7"]
[White "Ortega Morales, Javier"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "53"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. f4 g6 2. Nf3 Bg7 3. e4 d6 4. d4 Nf6 5. Nc3 0-0 6. Bd3 Nbd7 7. e5 Ne8 8. 0-0 c5 9. exd6 cxd4 10. dxe7 Qxe7 11. Re1 Qd8 12. Ne4 Qb6 13. Nfd2 Nd6 14. Nxd6 Qxd6 15. Ne4 Qc7 16. Qf3 Nc5 17. Nxc5 Qxc5 18. Bd2 Be6 19. b4 Qc8 20. a4 h5 21. h3 h4 22. Re2 Qd7 23. b5 Rac8 24. Rae1 Bf6 25. Bxg6 fxg6 26. Rxe6 Rxc2 27. Qb3 1-0

[Event "Buenos Aires Fed"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "8"]
[White "Piazzi, H."]
[Black "Arenas, Sergio"]
[Result "0-1"]
[ECO "D94"]
[PlyCount "30"]
[EventDate "1993.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. b3 c5 7. Bd2 cxd4 8. exd4 Nc6 9. cxd5 Nxd5 10. Nxd5 Qxd5 11. Bc4 Qe4+ 12. Be3 Bg4 13. Be2 Rad8 14. h3 Nxd4 15. Rc1 Nxf3+ 0-1

[Event "Buenos Aires FMDA-B U18"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "4"]
[White "Pierrot, Juan Facundo"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2310"]
[PlyCount "131"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ARG"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. 0-0 Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. a4 Qc7 12. Qe2 Bd6 13. h3 0-0 14. c3 b6 15. Bg5 Nd7 16. Rad1 Ne5 17. Bb3 Ng6 18. Bc2 Bb7 19. Be4 Bf4 20. Bxb7 Qxb7 21. Bxf4 Nxf4 22. Qg4 Ng6 23. h4 h6 24. Nxe6 Qc8 25. Rfe1 Re8 26. h5 Rxe6 27. Rxe6 Nf8 28. Re4 f5 29. Qf4 fxe4 30. Qxe4 Qe8 31. Qd5+ Kh8 32. Rd3 Qe1+ 33. Kh2 Re8 34. Rf3 Qe7 35. g3 Nh7 36. Re3 Qd8 37. Qxd8 Rxd8 38. Re6 Rb8 39. g4 Kg8 40. Kg3 Kf7 41. Rc6 Rb7 42. b4 Nf6 43. a5 Nd5 44. Kf3 bxa5 45. bxa5 Nc7 46. Rb6 Ra7 47. Ke4 Ne6 48. f4 Nc5+ 49. Kf5 Nb7 50. g5 hxg5 51. fxg5 Nxa5 52. h6 gxh6 53. gxh6 Nc4 54. h7 Kg7 55. Rh6 Kh8 56. Ke4 a5 57. Kd3 Ne5+ 58. Kc2 a4 59. Kb2 a3+ 60. Ka2 Nd3 61. Rh1 Nf2 62. Rb1 Nd3 63. Rh1 Ne5 64. Rh4 Nf3 65. Rh1 Nd2 66. Rh4 1/2-1/2

[Event "Buenos Aires op1"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "4"]
[White "Rodriguez Vila, Andres"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "C09"]
[WhiteElo "2445"]
[PlyCount "87"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. exd5 exd5 6. Bb5 Bd6 7. 0-0 Nge7 8. dxc5 Bxc5 9. Nb3 Bd6 10. Bg5 0-0 11. Bh4 Bg4 12. Be2 Qc7 13. Bg3 Rad8 14. Nfd4 Bxe2 15. Qxe2 a6 16. Rfe1 Bxg3 17. hxg3 Nxd4 18. Nxd4 Nc6 19. Rad1 Qd7 20. Qd3 Nxd4 21. Qxd4 Rfe8 22. Rxe8+ Qxe8 23. c4 Qe4 24. cxd5 Qxd4 25. Rxd4 Kf8 26. a4 a5 27. d6 f6 28. f4 f5 29. Rd5 g6 30. Rxa5 Rxd6 31. Rb5 b6 32. Kh2 Kg7 33. b4 h6 34. a5 bxa5 35. bxa5 Rd1 36. Rb7+ Kf6 37. a6 Ra1 38. Ra7 h5 39. Ra8 Kg7 40. a7 Kh7 41. g4 fxg4 42. Kg3 Ra2 43. Kh4 Ra5 44. Kg3 1/2-1/2

[Event "Buenos Aires op2"]
[Site "Buenos Aires"]
[Date "1993.??.??"]
[Round "6"]
[White "Tanner, Pedro"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "D82"]
[WhiteElo "2170"]
[PlyCount "99"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Rc1 c5 6. dxc5 Qa5 7. Qa4+ Qxa4 8. Nxa4 Bd7 9. Nc3 dxc4 10. e3 Na6 11. Bxc4 Nxc5 12. Nf3 0-0 13. 0-0 Nfe4 14. Nxe4 Nxe4 15. Bd5 Bc6 16. Rxc6 bxc6 17. Bxe4 Rac8 18. Be5 f6 19. Bc3 c5 20. Bd5+ Kh8 21. Rc1 Rfd8 22. Bb7 Rb8 23. Ba6 e5 24. b3 Rd6 25. Be2 Rc8 26. e4 a6 27. Bc4 Re8 28. Bd5 h5 29. Bb2 Rc8 30. b4 Rb6 31. Ba3 Bf8 32. Kf1 c4 33. Rxc4 Rxc4 34. Bxc4 a5 35. Ke2 axb4 36. Bb2 Bc5 37. Ne1 Kg7 38. Nd3 Bd6 39. g3 Rb8 40. Kd2 Rc8 41. Bd5 g5 42. Bb3 Kg6 43. Be6 Rc7 44. Kd1 g4 45. Bc1 Rc6 46. Bd5 Rc7 47. Bd2 f5 48. Nxb4 Rd7 49. Be6 Rd8 50. Bxf5+ 1-0

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "3"]
[White "Arenas, Sergio"]
[Black "Katzman, Sergio"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "101"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d5 5. h3 0-0 6. Nbd2 b6 7. e3 Bb7 8. Bd3 c5 9. a4 cxd4 10. cxd4 Nc6 11. 0-0 Nb4 12. Be2 Rc8 13. Qb3 a5 14. Rac1 Nd7 15. Rc3 f6 16. Rfc1 e5 17. dxe5 Nc5 18. Qa3 fxe5 19. Nxe5 d4 20. exd4 Qxd4 21. Rc4 Qd6 22. Bg4 Bxe5 23. Bxe5 Qxe5 24. Bxc8 Rxc8 25. f4 Qe2 26. Nf3 Nbd3 27. Rf1 Re8 28. Qc3 Qe3+ 29. Kh2 Re4 30. Rxe4 Qxe4 31. Qf6 Ne6 32. Rg1 Qxf4+ 33. Qxf4 Nexf4 34. b3 Bxf3 35. gxf3 Nc5 36. Rb1 Nfd3 37. Kg2 Kf7 38. Kg3 Kf6 39. h4 Kf5 40. Rd1 h5 41. Rb1 g5 42. hxg5 Kxg5 43. f4+ Nxf4 44. b4 h4+ 45. Kh2 Nxa4 46. bxa5 bxa5 47. Rb5+ Kg4 48. Rxa5 Nb6 49. Ra7 Nbd5 50. Rg7+ Kf3 51. Rh7 1/2-1/2

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "9"]
[White "Arenas, Sergio"]
[Black "Klibanski, Luis Ricardo"]
[Result "1-0"]
[ECO "D16"]
[PlyCount "123"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. Nc3 c6 5. a4 Na6 6. e3 Bg4 7. Bxc4 e6 8. Bxa6 bxa6 9. h3 Bh5 10. g4 Bg6 11. Ne5 Bd6 12. Qf3 Bxe5 13. Qxc6+ Nd7 14. dxe5 0-0 15. Qd6 Nb6 16. Qxd8 Rfxd8 17. e4 Nc4 18. f4 h5 19. b3 Na5 20. b4 Nb3 21. Rb1 Nxc1 22. Rxc1 Rac8 23. f5 Bh7 24. Ke2 Rd4 25. b5 g6 26. fxe6 fxe6 27. g5 axb5 28. axb5 Rdc4 29. Kd3 R4c5 30. h4 Rd8+ 31. Ke3 Rxe5 32. Rhd1 Rxd1 33. Rxd1 Rc5 34. Rd8+ Kf7 35. Rd7+ Ke8 36. Rxh7 Rxc3+ 37. Kd4 Rb3 38. Rxa7 Rxb5 39. Rg7 e5+ 40. Kc4 Rb6 41. Kd5 Kf8 42. Rc7 Rb5+ 43. Ke6 Rb1 44. Kxe5 Rh1 45. Kf6 Ke8 46. Kxg6 Rxh4 47. e5 Re4 48. Kf5 Re1 49. Rh7 Rh1 50. g6 Kf8 51. e6 Rf1+ 52. Kg5 Rg1+ 53. Kxh5 Rh1+ 54. Kg4 Rg1+ 55. Kf5 Rf1+ 56. Ke5 Re1+ 57. Kd6 Rd1+ 58. Kc7 Re1 59. Rf7+ Ke8 60. g7 Rc1+ 61. Kb8 Rc8+ 62. Kb7 1-0

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "1"]
[White "Arenas, Sergio"]
[Black "Rebottaro, Hector Javier"]
[Result "0-1"]
[ECO "A59"]
[PlyCount "56"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. c4 b5 5. cxb5 a6 6. bxa6 Bxa6 7. Nc3 d6 8. e4 Bxf1 9. Kxf1 Bg7 10. Nd2 Nbd7 11. Nc4 Nb6 12. Qb3 Nxc4 13. Qxc4 0-0 14. Qe2 Qb6 15. g4 Rfb8 16. Kg2 Nd7 17. f4 Qb4 18. Nd1 Nf6 19. Nc3 Nxg4 20. a3 Qb3 21. Qxg4 Bxc3 22. bxc3 Qc2+ 23. Kf3 Qxc3+ 24. Be3 Rb3 25. Rhe1 Qd4 26. Qg1 Ra4 27. Kf2 Qxe4 28. Qg2 Rb2+ 0-1

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "5"]
[White "Arenas, Sergio"]
[Black "Scionico, Carlos"]
[Result "1-0"]
[ECO "D05"]
[PlyCount "139"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c3 c5 4. e3 Nc6 5. Bd3 d5 6. Nbd2 Qc7 7. 0-0 Bd6 8. dxc5 Bxc5 9. e4 0-0 10. Qe2 e5 11. exd5 Nxd5 12. Qe4 Nf6 13. Qh4 Re8 14. Ne4 Nxe4 15. Bxe4 g6 16. Ng5 h5 17. Bxg6 fxg6 18. Qc4+ Kg7 19. Qxc5 Bf5 20. Be3 Rad8 21. Rfd1 Bd3 22. Bc1 e4 23. Qe3 Re7 24. Nh3 Rh8 25. Qg5 Qe5 26. Bf4 Qxg5 27. Bxg5 Re5 28. f3 Rf8 29. b4 Ree8 30. fxe4 Bxe4 31. Rd7+ Rf7 32. Bh6+ Kg8 33. Rxf7 Kxf7 34. Ng5+ Kf6 35. Re1 Kf5 36. Rf1+ Ke5 37. Nxe4 Rd8 38. Nc5 b6 39. Bf4+ Kd5 40. Rd1+ Kc4 41. Rxd8 Nxd8 42. Ne4 Kd3 43. Nd6 Kxc3 44. Nc8 Kxb4 45. Nxa7 Ka3 46. Bc7 Ne6 47. Bxb6 Kxa2 48. Kf2 Kb3 49. Nc6 Kc3 50. Ne7 g5 51. Be3 Kd3 52. Nf5 h4 53. Kf3 h3 54. g3 g4+ 55. Kxg4 Ke4 56. Bf4 Nc5 57. Nd6+ Kd5 58. Kxh3 Nd3 59. Nf5 Ke6 60. Ne3 Kf6 61. Kg2 Kg6 62. h4 Nc5 63. g4 Ne4 64. h5+ Kh7 65. g5 Nc5 66. g6+ Kg8 67. h6 Nd7 68. Nf5 Nf6 69. Be5 Nh7 70. Ne7+ 1-0

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "6"]
[White "Arenas, Sergio"]
[Black "Villagra, Roberto"]
[Result "1-0"]
[ECO "A80"]
[PlyCount "93"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 f5 3. Bg5 Nf6 4. g3 Be7 5. c4 0-0 6. Bg2 d6 7. Nc3 Qe8 8. Bxf6 Bxf6 9. 0-0 Bd7 10. e4 Qh5 11. e5 Be7 12. d5 Na6 13. dxe6 Bxe6 14. exd6 Bxd6 15. Nd4 Qxd1 16. Rfxd1 Bc8 17. Ndb5 Bc5 18. Na4 Be7 19. a3 Bf6 20. Rab1 c6 21. Nd6 g6 22. b4 Rb8 23. b5 cxb5 24. cxb5 Nc7 25. Rbc1 Ne6 26. Bd5 Kg7 27. Nxc8 Nd4 28. Rc7+ Kh6 29. Nxa7 Rfd8 30. Nc3 Be5 31. b6 f4 32. Re7 Bd6 33. Rxb7 Rxb7 34. Bxb7 Bxa3 35. Kf1 fxg3 36. Ncb5 Bc5 37. Nxd4 Bxd4 38. Nc6 Rd7 39. Nxd4 Rxb7 40. Rb1 gxh2 41. Kg2 Kg5 42. Ne6+ Kf5 43. Nd8 Rb8 44. b7 h1Q+ 45. Kxh1 Rxd8 46. b8Q Rxb8 47. Rxb8 1-0

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "8"]
[White "Arregui, Jose Luis"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "105"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 c6 5. h3 Nd7 6. Bf4 Ngf6 7. e3 Bb4 8. a3 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Nb6 11. Bd3 Bxd3 12. Qxd3 Nbd5 13. Be5 Qa5 14. 0-0 Qxc3 15. Qb1 Qc4 16. Qxb7 0-0 17. Bxf6 Rfb8 18. Qxf7+ Kxf7 19. Ne5+ Kxf6 20. Nxc4 c5 21. Ne5 Rb7 22. Ng4+ Ke7 23. dxc5 Rc8 24. Rfc1 Rbc7 25. Rab1 Rxc5 26. Rb7+ R8c7 27. Rxc5 Rxb7 28. Ra5 Kd6 29. e4 Nb6 30. Ne3 Rc7 31. Kh2 Nd7 32. Kg3 Nc5 33. f3 a6 34. Nc4+ Kc6 35. Kf4 Kb7 36. Ke5 Rc6 37. h4 g6 38. g4 Kc7 39. Kf4 Nb7 40. Ra4 Nc5 41. Ra5 Nb7 42. Re5 Rxc4 43. Rxe6 Kd7 44. Rxa6 Ke7 45. Ra7 Rc7 46. a4 Ke6 47. a5 Rf7+ 48. Kg5 Nxa5 49. Rxa5 Ke7 50. Rd5 Kf8 51. f4 Kg7 52. f5 Rc7 53. f6+ 1-0

[Event "Buenos Aires GP I"]
[Site "Buenos Aires"]
[Date "1992.??.??"]
[Round "1"]
[White "Godoy, Carlos"]
[Black "Arenas, Sergio"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "2215"]
[PlyCount "63"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Bg4 3. e3 Nd7 4. c4 c6 5. h3 Bxf3 6. Qxf3 e6 7. Be2 Ngf6 8. 0-0 Be7 9. Nc3 Nb6 10. cxd5 cxd5 11. Bb5+ Nbd7 12. d4 a6 13. Bd3 b5 14. Bd2 0-0 15. g4 g6 16. Ne2 Nb6 17. b3 Bd6 18. Be1 Ne8 19. f5 e5 20. dxe5 Bxe5 21. Nd4 Bxd4 22. exd4 Qf6 23. fxg6 fxg6 24. Qe3 Qd6 25. Bg3 Rxf1+ 26. Rxf1 Qd7 27. Be5 Ng7 28. Rf6 Ne6 29. Bxg6 hxg6 30. Rxg6+ Kf8 31. Qf2+ Qf7 32. Rf6 1-0

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "7"]
[White "Puyou, Guillermo"]
[Black "Arenas, Sergio"]
[Result "0-1"]
[ECO "D06"]
[PlyCount "68"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Rxb1 Qxd5 5. Qa4+ Nc6 6. Nf3 0-0-0 7. e3 e5 8. Bd2 exd4 9. Bc4 Qf5 10. 0-0 Bc5 11. e4 Qxe4 12. Ng5 Qe8 13. Nxf7 Ne5 14. Qxe8 Rxe8 15. Nxe5 Rxe5 16. Rfe1 Rxe1+ 17. Rxe1 Nf6 18. b4 Bd6 19. g3 c6 20. a3 Kc7 21. f4 b5 22. Be6 a5 23. f5 axb4 24. axb4 Ra8 25. Rc1 Ra4 26. Bb3 Ra3 27. Bf7 Ne4 28. Be1 Nc3 29. Kf1 Bxb4 30. g4 Bd6 31. Bd2 b4 32. Rc2 c5 33. Rb2 Ne4 34. g5 Rf3+ 0-1

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "4"]
[White "Urchipia, Carlos Daniel"]
[Black "Arenas, Sergio"]
[Result "1/2-1/2"]
[ECO "A11"]
[PlyCount "139"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. g3 g6 4. b3 Bg7 5. Bb2 d5 6. Bg2 0-0 7. 0-0 Re8 8. e3 Bf5 9. d4 Bxb1 10. Rxb1 Nbd7 11. Ne5 dxc4 12. bxc4 Nxe5 13. dxe5 Nd7 14. e6 Nc5 15. exf7+ Kxf7 16. Qf3+ Bf6 17. Rfd1 Qc7 18. Bh3 Rad8 19. Bd4 Na4 20. Qg4 Kg7 21. Rd3 e5 22. Ra3 exd4 23. Rxa4 b6 24. exd4 Rxd4 25. Qf3 b5 26. Rab4 a5 27. R4b3 Rxc4 28. Rd1 Re7 29. Rbd3 Qe5 30. Rd6 c5 31. Qc6 Rc2 32. Bf1 Qf5 33. R6d2 Rxd2 34. Rxd2 b4 35. Rd5 Qb1 36. Qxc5 Qxa2 37. Qxa5 b3 38. Qb5 b2 39. Rd1 Qa1 40. Qd3 Qa4 41. Rb1 Qc6 42. Qd1 Rc7 43. Bd3 Qc1 44. Kf1 Qc6 45. Kg1 Qc5 46. Qe2 Rd7 47. Qc2 Qb6 48. Qe2 Qb3 49. Bc2 Qc3 50. Be4 Rd2 51. Qa6 Qc7 52. Qe6 Bd4 53. Rf1 Qa7 54. Kg2 Bf6 55. h4 Qd4 56. Bb1 Bd8 57. Qe4 Qxe4+ 58. Bxe4 Bb6 59. Bb1 Kf6 60. Kf3 Ke5 61. Kg2 Kd5 62. h5 gxh5 63. Bxh7 Kc4 64. Bg6 Rd6 65. Bb1 Kb3 66. Kf3 Rc6 67. Ke2 Re6+ 68. Kd3 Rd6+ 69. Ke2 Bd4 70. f4 1/2-1/2

