[Event "Orense op"]
[Site "Orense"]
[Date "1994.??.??"]
[Round "6"]
[White "De Leon, Atila"]
[Black "Estremera Panos, Sergio"]
[Result "0-1"]
[ECO "B88"]
[WhiteElo "2190"]
[BlackElo "2345"]
[PlyCount "66"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ESP"]
[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 Nc6 6. Bc4 e6 7. Be3 Be7 8. Bb3 0-0 9. 0-0 a6 10. f4 Nxd4 11. Bxd4 b5 12. e5 dxe5 13. fxe5 Nd7 14. Qh5 Nc5 15. Rad1 Bb7 16. Rf4 Qc7 17. Bxc5 Qxc5+ 18. Kh1 Qe3 19. Rdf1 g6 20. Qe2 Qxe2 21. Nxe2 Rad8 22. Nc3 Rd2 23. R4f2 Rxf2 24. Rxf2 Rd8 25. h3 b4 26. Na4 Rd1+ 27. Kh2 Re1 28. Rd2 Bc6 29. Nb6 Rxe5 30. Nc8 Bg5 31. Rf2 Re3 32. Nd6 Bh4 33. Rd2 Bg3+ 0-1

[Event "Orense op"]
[Site "Orense"]
[Date "1994.??.??"]
[Round "4"]
[White "De Leon, Atila"]
[Black "Piza Cortizo, Daniel Ricardo"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2190"]
[BlackElo "2295"]
[PlyCount "42"]
[EventDate "1994.??.??"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c3 c5 6. Bd3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. exf6 Nxf6 10. 0-0 Bd6 11. Nf3 0-0 12. Nc3 a6 13. Be3 Qc7 14. Rc1 Bd7 15. Re1 Be8 16. Ne5 Bh5 17. Qd2 Nxe5 18. dxe5 Bxe5 19. Nxd5 Bxh2+ 20. Kh1 Qd6 21. Nf4 Ne4 1/2-1/2

[Event "Buenos Aires Stentor"]
[Site "Buenos Aires"]
[Date "1977.??.??"]
[Round "2"]
[White "De Leon, Atila"]
[Black "Anfossi, J."]
[Result "1-0"]
[ECO "C99"]
[PlyCount "56"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. a3 Re8 15. Nb3 Nd7 16. Be3 Bb7 17. Rc1 Rac8 18. d5 Ncb8 19. Bd3 Qd8 20. Qd2 Nf6 21. Na5 Ba8 22. Rxc8 Qxc8 23. Rc1 Qd7 24. Qb4 Rc8 25. Rxc8+ Qxc8 26. Nxe5 Nxd5 27. exd5 dxe5 28. Qxe7 Bxd5 1-0

[Event "Buenos Aires Stentor"]
[Site "Buenos Aires"]
[Date "1977.??.??"]
[Round "1"]
[White "Risueno Mateo, Lluis Anton"]
[Black "De Leon, Atila"]
[Result "0-1"]
[ECO "E61"]
[PlyCount "32"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Bg7 5. d4 Nf6 6. Be2 d6 7. 0-0 0-0 8. b3 Bf5 9. Bb2 Ne4 10. Qc1 cxd4 11. Nxe4 Bxe4 12. Nxd4 Qa5 13. Bf3 Nxd4 14. Bxd4 Bxf3 15. Bxg7 Qg5 16. g3 Qg4 0-1

[Event "Buenos Aires Stentor"]
[Site "Buenos Aires"]
[Date "1977.??.??"]
[Round "5"]
[White "Spalletti, Roberto"]
[Black "De Leon, Atila"]
[Result "0-1"]
[ECO "A36"]
[PlyCount "80"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. g3 c5 4. Bg2 Nc6 5. d3 e6 6. e4 Nge7 7. Nge2 0-0 8. 0-0 d6 9. a3 Nd4 10. Rb1 a5 11. b4 axb4 12. axb4 Nec6 13. bxc5 dxc5 14. Be3 Ra3 15. Bxd4 Nxd4 16. Nxd4 Rxc3 17. Nb5 Rxd3 18. Qe2 Rd2 19. Qe3 b6 20. e5 Ba6 21. Nd6 Rxd6 22. exd6 Bxc4 23. Rfd1 Bd4 24. Rxd4 cxd4 25. Qxd4 b5 26. Bc6 Bd5 27. Bxd5 Qxd6 28. Rxb5 Rd8 29. Qa7 exd5 30. Rb7 Qf6 31. Rd7 Rxd7 32. Qxd7 d4 33. Kf1 Qe5 34. h4 h5 35. g4 hxg4 36. Qxg4 d3 37. Qd1 Qe4 38. f3 Qe3 39. Kg2 Kh7 40. Qb3 Kg7 0-1

[Event "Mar del Plata International Open-07"]
[Site "Mar del Plata"]
[Date "1974.04.??"]
[Round "?"]
[White "De Leon, Atila"]
[Black "Intini, Victor"]
[Result "1-0"]
[ECO "C62"]
[PlyCount "51"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. Nxd4 Nge7 6. Nc3 Bd7 7. Bg5 Qc8 8. 0-0 h6 9. Bh4 g5 10. Bg3 Bg7 11. Nde2 Ng6 12. f4 0-0 13. f5 Nge5 14. f6 Bh8 15. Bxe5 Nxe5 16. Nd5 Qd8 17. Bxd7 Nxd7 18. e5 Nxe5 19. Ng3 c6 20. Ne7+ Kh7 21. Ne4 g4 22. Rf5 Ng6 23. Ng5+ hxg5 24. Qxg4 Nxe7 25. Qh5+ Kg8 26. Rxg5+ 1-0

[Event "Mar del Plata International Open-07"]
[Site "Mar del Plata"]
[Date "1974.04.??"]
[Round "?"]
[White "Garcia, Horacio"]
[Black "De Leon, Atila"]
[Result "1-0"]
[ECO "B31"]
[PlyCount "91"]
[EventDate "1974.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 e5 6. Bxc6 bxc6 7. d3 d6 8. Nbd2 Nh6 9. Nc4 0-0 10. Qd2 a5 11. a4 Bg4 12. Ng5 f6 13. h3 Bc8 14. Nf3 d5 15. Na3 Nf7 16. Qe3 Qe7 17. Nd2 Ng5 18. Nb3 c4 19. Qc5 Qxc5 20. Nxc5 cxd3 21. Bxg5 fxg5 22. Nxd3 Rb8 23. b3 h5 24. Rad1 Re8 25. exd5 cxd5 26. Nb5 Bf5 27. Nc7 Rec8 28. Nxd5 Rxc2 29. Nxe5 Rxb3 30. Ne7+ Kh7 31. Nxf5 gxf5 32. Rd7 Rbc3 33. Nf3 Rc1 34. Rxc1 Rxc1+ 35. Kh2 g4 36. Nh4 Kg8 37. Nxf5 Be5+ 38. g3 Re1 39. Ne7+ Kf7 40. Nc6+ Kf6 41. Rh7 Kg6 42. Re7 Bf6 43. Rd7 Bc3 44. Rd3 Rc1 45. Ne7+ Kg5 46. Rd6 1-0

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.23"]
[Round "7.3"]
[White "Fernandez Giuntoli, Luis Rolando"]
[Black "De Leon, Atila"]
[Result "1/2-1/2"]
[ECO "E92"]
[PlyCount "101"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 g6 6. Be2 Bg7 7. Nf3 0-0 8. 0-0 Ne8 9. Ne1 f5 10. Nd3 Nf6 11. exf5 gxf5 12. f4 e4 13. Nf2 a6 14. a4 Qe8 15. Be3 b6 16. Qc2 Ra7 17. Rab1 Re7 18. b4 Nbd7 19. Rfe1 h5 20. h4 Bh6 21. Nh3 Ng4 22. Bxg4 hxg4 23. Ng5 Qh5 24. g3 Bxg5 25. hxg5 Rh7 26. Qg2 Kf7 27. Kf2 Rfh8 28. b5 a5 29. Ke2 Nf8 30. Rg1 Qg6 31. Rh1 Rh3 32. Rxh3 gxh3 33. Qh2 Bd7 34. Kd2 Be8 35. Rh1 Kg8 36. Qf2 Qh5 37. Rh2 Qg4 38. Rh1 Bh5 39. Rh2 Ng6 40. Rh1 Ne7 41. Rh2 Bg6 42. Rh1 Kf7 43. Rh2 Ke8 44. Rh1 Kf8 45. Rh2 Rh7 46. Rh1 Rh8 47. Rh2 Kf7 48. Ne2 Bh5 49. Nc3 Kg8 50. Rh1 Kf8 51. Rh2 1/2-1/2

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.22"]
[Round "6.3"]
[White "De Leon, Atila"]
[Black "Mazzetti, C."]
[Result "1-0"]
[ECO "B09"]
[PlyCount "75"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. e5 dxe5 6. dxe5 Qxd1+ 7. Kxd1 Ng4 8. Ke1 c6 9. h3 Nh6 10. g4 Ng8 11. Nf3 h5 12. g5 Bf5 13. Nd4 e6 14. Nxf5 exf5 15. Be3 Nd7 16. Rd1 Ne7 17. Bc4 Nb6 18. Bb3 Rc8 19. Rh2 Rb8 20. Bxb6 axb6 21. Rhd2 b5 22. a3 0-0 23. Rd7 Nc8 24. Rxf7 Rxf7 25. Rd7 Nb6 26. Rxf7 Nc4 27. Rd7 Kf8 28. a4 Bxe5 29. fxe5 Nxe5 30. Rh7 Re8 31. Kf2 bxa4 32. Nxa4 Re7 33. Rxe7 Kxe7 34. Nc5 b5 35. Nd3 Kd6 36. Nxe5 Kxe5 37. Bf7 Kf4 38. Bxg6 1-0

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.21"]
[Round "5.2"]
[White "Chavich, Tomas"]
[Black "De Leon, Atila"]
[Result "0-1"]
[ECO "B16"]
[PlyCount "118"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Bc4 Bf5 7. Nf3 e6 8. Be3 Nd7 9. Bd3 Bd6 10. Nh4 Bxd3 11. Qxd3 f5 12. Nf3 Rg8 13. g3 Nf6 14. 0-0-0 Qa5 15. Qb3 Qd5 16. Qxd5 cxd5 17. Rd3 Rc8 18. Ne5 Nd7 19. Nxd7 Kxd7 20. f4 h5 21. Bf2 h4 22. c3 h3 23. Kd2 b5 24. a3 a5 25. Ke2 Ke7 26. Rg1 Kd7 27. Be3 b4 28. axb4 axb4 29. Ra1 Ra8 30. Rdd1 bxc3 31. bxc3 Rgb8 32. Rxa8 Rxa8 33. Kf3 Ra2 34. Rd2 Ra1 35. g4 Rf1+ 36. Rf2 fxg4+ 37. Kxg4 f5+ 38. Kg3 Rg1+ 39. Kxh3 Rg8 40. Rg2 Rh8+ 41. Kg3 Kc6 42. h4 Kb5 43. Kh3 Rh6 44. Rb2+ Kc4 45. Rb6 Be7 46. Bf2 Kxc3 47. Rb7 Bf6 48. Rc7+ Kd3 49. Rc1 Ke4 50. Kg2 Rg6+ 51. Kh3 Kf3 52. Rf1 Ke2 53. Rg1 Rxg1 54. Bxg1 Kf3 55. h5 Kxf4 56. h6 Kg5 57. Be3+ Kg6 58. Kg3 Be7 59. Kf3 Bf8 0-1

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.19"]
[Round "3.2"]
[White "Melcon, Nestor"]
[Black "De Leon, Atila"]
[Result "1/2-1/2"]
[ECO "B83"]
[PlyCount "123"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. 0-0 Nc6 8. Be3 0-0 9. f4 Bd7 10. Kh1 Nxd4 11. Bxd4 Bc6 12. Bd3 Nd7 13. e5 dxe5 14. fxe5 Bc5 15. Rf4 Bxd4 16. Rxd4 Qg5 17. Rg4 Qxe5 18. Qd2 f5 19. Re1 fxg4 20. Rxe5 Nxe5 21. Kg1 Rf6 22. Ne4 Bxe4 23. Bxe4 Nc4 24. Qd4 Na5 25. Bd3 Nc6 26. Qxg4 Raf8 27. h3 e5 28. Qe4 g6 29. b4 Rf4 30. Qd5+ Kg7 31. b5 Nd8 32. Qxe5+ R4f6 33. a4 Ne6 34. a5 b6 35. axb6 axb6 36. Bc4 Nc5 37. g4 h6 38. Qc7+ Kh8 39. Qe5 g5 40. Qe7 Rf3 41. Qd6 R3f6 42. Qe7 Rf3 43. Qd6 R3f6 44. Qe7 Rf4 45. Qd6 Kg7 46. Qd7+ Kg6 47. Qd6+ R4f6 48. Qe5 Rf4 49. Qd6+ R8f6 50. Qd5 Re6 51. Bd3+ Kg7 52. Kg2 Rff6 53. Bc4 Re8 54. Kg1 Re1+ 55. Kg2 Re8 56. Kg1 Ref8 57. Qe5 Kg6 58. Qe7 h5 59. gxh5+ Kh6 60. Qe5 Rf4 61. Qd6+ R4f6 62. Qe5 1/2-1/2

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.18"]
[Round "2.3"]
[White "Palermo, Vicente"]
[Black "De Leon, Atila"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "102"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Qb3 Bg7 7. cxd5 0-0 8. Nge2 b6 9. g3 Bb7 10. Bg2 Qd7 11. 0-0 Na6 12. Nf4 Nc7 13. Re1 Qd6 14. Bd2 Rad8 15. Re5 Ng4 16. Re2 Nf6 17. Rae1 Ncxd5 18. Nfxd5 Nxd5 19. Bg5 h6 20. Bxd5 Bxd5 21. Nxd5 hxg5 22. Nxe7+ Kh7 23. d5 Rd7 24. Qf3 Bf6 25. Nc6 g4 26. Qxg4 Qxd5 27. Ne5 Rdd8 28. Qf4 Bg7 29. b3 Kg8 30. h4 Rfe8 31. Nf3 Rxe2 32. Rxe2 Qd1+ 33. Re1 Qd7 34. Qe4 Bf6 35. Kg2 Rc8 36. Re2 Kg7 37. Rd2 Qc7 38. Qg4 Rd8 39. Re2 Qc5 40. Qe4 Rd7 41. Rc2 Qd5 42. Qxd5 Rxd5 43. Rc7 Ra5 44. a4 b5 45. Rc5 a6 46. Ne5 Bxe5 47. Rxe5 Kf6 48. f4 Kg7 49. Kf3 f6 50. Rc5 Kf7 51. g4 Ke6 1-0

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.17"]
[Round "1.3"]
[White "De Leon, Atila"]
[Black "Sabao, Raimundo"]
[Result "1-0"]
[ECO "A05"]
[PlyCount "91"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. c3 Nf6 7. 0-0 0-0 8. Nbd2 e5 9. a4 Be6 10. Ng5 Bg4 11. f3 Bc8 12. f4 Bg4 13. Qc2 exf4 14. gxf4 d5 15. Ndf3 h6 16. Nh3 c4 17. e5 cxd3 18. Qxd3 Ne4 19. Be3 Bf5 20. Qb5 Qe7 21. Nf2 a6 22. Qb6 Nxf2 23. Rxf2 Be4 24. Rd1 f6 25. c4 fxe5 26. cxd5 exf4 27. Bc5 Rf6 28. Qb3 Qf7 29. Bh3 Bf5 30. Bf1 Re8 31. Qc3 Rd6 32. Qc1 Ne5 33. Bxd6 Nxf3+ 34. Rxf3 Bg4 35. Rxf4 Qd7 36. Re1 Rc8 37. Qd2 Bf5 38. Be5 Rc2 39. Qd4 Qe7 40. Bxg7 Qxe1 41. Bxh6 Kf7 42. Qg7+ Ke8 43. Qf8+ Kd7 44. Rxf5 gxf5 45. Qxf5+ Kc7 46. Qxc2+ 1-0

