[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "2"]
[White "Bernat, Miguel"]
[Black "Peiro, Sergio F"]
[Result "1-0"]
[ECO "E62"]
[PlyCount "69"]
[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. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. Nc3 c6 7. 0-0 Bf5 8. Nh4 Bd7 9. e4 e5 10. d5 c5 11. Rb1 a6 12. b4 b6 13. bxc5 bxc5 14. Na4 Bxa4 15. Qxa4 Nbd7 16. Bd2 Qe7 17. Rb7 Rfb8 18. Rfb1 Qe8 19. f3 Qc8 20. Qc6 Rxb7 21. Rxb7 Rb8 22. Rb3 Bf8 23. Ba5 Qe8 24. Bh3 Rxb3 25. axb3 Be7 26. Qxa6 Qb8 27. Qb5 Qxb5 28. cxb5 Kf8 29. Ng2 Ke8 30. Bc7 h5 31. Ne3 Nh7 32. Nc4 Ng5 33. Bg2 Nf6 34. h4 Ngh7 35. b6 1-0

[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "7"]
[White "Casafus, Ruben Andres"]
[Black "Peiro, Sergio F"]
[Result "1-0"]
[ECO "E99"]
[PlyCount "59"]
[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 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. Bd2 Nf6 12. f3 f4 13. Rc1 Bd7 14. c5 a6 15. Qb3 Rb8 16. Qa3 Nc8 17. Rc2 Nh5 18. Qb3 Qg5 19. Rfc1 Na7 20. cxd6 cxd6 21. Qb6 Nc8 22. Qc7 Qd8 23. Qxb8 Qb6+ 24. Kh1 Qd8 25. Qxb7 Ng3+ 26. Kg1 Ba4 27. Nxa4 Nxe2+ 28. Kf1 Nxc1 29. Rxc1 Qe8 30. b3 1-0

[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "4"]
[White "De Martin, Juan Alfredo"]
[Black "Peiro, Sergio F"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "51"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Bf4 e6 6. Nf3 Be7 7. Nc3 0-0 8. c5 b6 9. b4 a5 10. a3 Bb7 11. Bb5 Nfd7 12. 0-0 f6 13. Qb3 Kh8 14. Bg3 e5 15. dxe5 bxc5 16. Nxd5 Nxe5 17. Rfd1 Nxf3+ 18. gxf3 Bxd5 19. Rxd5 Qb6 20. bxc5 Bxc5 21. Qc4 Rc8 22. Rc1 Na6 23. Kg2 Bf8 24. Qxc8 Rxc8 25. Rxc8 Kg8 26. Rdd8 1-0

[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "3"]
[White "Peiro, Sergio F"]
[Black "Barbero, Gerardo F"]
[Result "0-1"]
[ECO "B09"]
[PlyCount "63"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg4 5. Nf3 e6 6. Be2 d5 7. e5 Nfd7 8. 0-0 c5 9. Nb5 Qb6 10. c3 a6 11. Qa4 Nc6 12. Rd1 Bxf3 13. gxf3 Rc8 14. Na3 Be7 15. Nc2 Qa7 16. a3 0-0 17. b4 cxd4 18. cxd4 b5 19. Qb3 Nb6 20. Be3 Bd8 21. Bf2 Nc4 22. a4 Qb7 23. axb5 axb5 24. Ne1 Be7 25. Nd3 Ra8 26. Nc5 Qc8 27. Kh1 Kh8 28. Qc3 Qc7 29. Na6 Qb6 30. Nc5 Rfc8 31. Kg2 Qd8 32. Kh3 0-1

[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "5"]
[White "Peiro, Sergio F"]
[Black "Daguer, Jose"]
[Result "1/2-1/2"]
[ECO "C80"]
[PlyCount "88"]
[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 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nc3 Nxc3 10. bxc3 Be7 11. Qe2 0-0 12. a4 Qd7 13. axb5 axb5 14. Rxa8 Rxa8 15. Qxb5 Nxe5 16. Qxd7 Nxd7 17. Bb2 c5 18. Ra1 Rb8 19. Ba3 Bf6 20. Rd1 Bxc3 21. h3 c4 22. Ba4 Ra8 23. Bxd7 Rxa3 24. Rb1 Ra1 25. Rxa1 Bxa1 26. Bxe6 fxe6 27. Kf1 h6 28. Ke2 Kf7 29. Kd2 Bf6 30. Ng1 e5 31. Ne2 d4 32. Ng3 Ke6 33. Ne4 Kd5 34. f3 Be7 35. g3 Bb4+ 36. Ke2 d3+ 37. cxd3 c3 38. Kd1 Kd4 39. Kc2 Ke3 40. f4 exf4 41. gxf4 Kxf4 42. Nxc3 Bxc3 43. Kxc3 Ke5 44. Kc4 Kd6 1/2-1/2

[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "1"]
[White "Peiro, Sergio F"]
[Black "Roncarolo, Nestor"]
[Result "1/2-1/2"]
[ECO "C90"]
[PlyCount "36"]
[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 Bg4 9. h3 Bh5 10. d4 exd4 11. cxd4 0-0 12. d5 Ne5 13. Nbd2 Qc8 14. Re3 Re8 15. Qc2 Nfd7 16. Nxe5 dxe5 17. Nf1 Bc5 18. Rc3 Bd6 1/2-1/2

[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "9"]
[White "Peiro, Sergio F"]
[Black "Torres Becchio, Gabriel"]
[Result "1/2-1/2"]
[ECO "C63"]
[PlyCount "27"]
[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 f5 4. Nc3 fxe4 5. Bxc6 dxc6 6. Nxe4 Nf6 7. Nxf6+ Qxf6 8. Qe2 Be7 9. h3 Qg6 10. d3 Qxg2 11. Rg1 Qxh3 12. Rxg7 Bf6 13. Rg3 Qe6 14. Qxe5 1/2-1/2

[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "6"]
[White "Peiro, Sergio F"]
[Black "Vernales, Gustavo"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "135"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 b5 7. a3 Bb7 8. Be3 Nf6 9. f3 d6 10. 0-0 Be7 11. Qe1 0-0 12. Rd1 Nbd7 13. Nb3 d5 14. exd5 Nxd5 15. Nxd5 Bxd5 16. Nd4 Rfd8 17. Qf2 Nf6 18. c3 Bb7 19. Bg5 Ne4 20. fxe4 Bxg5 21. Bg4 Re8 22. e5 Rad8 23. Nxe6 fxe6 24. Rxd8 Qxd8 25. Qf7+ Kh8 26. Qxb7 Rf8 27. Rxf8+ Qxf8 28. Bf3 h6 29. Qc6 Bf4 30. Qxe6 Qc5+ 31. Kf1 Qxe5 32. Qxa6 Bc1 33. Qa8+ Kh7 34. Be4+ g6 35. Qb7+ Kh8 36. Qc8+ Kg7 37. Qd7+ Kf6 38. Qd8+ Kg7 39. Qd7+ Kf6 40. Qc6+ Qe6 41. Qxe6+ Kxe6 42. Bxg6 Bxb2 43. Bd3 Bxc3 44. Bxb5 Be5 45. h3 Bd6 46. a4 Ke5 47. Ke2 Bb4 48. Kf3 Bd2 49. Kg4 Kf6 50. Kh5 Kg7 51. Kg4 Ba5 52. Kf5 Kf7 53. Ke5 Ke7 54. Kd5 Kd8 55. Kc6 Kc8 56. Be2 Bd2 57. Kb5 Kc7 58. a5 Be3 59. a6 Kd6 60. Kc4 Ke5 61. g4 Kf6 62. Kd5 Kf7 63. Bf3 Kg8 64. Kc6 Kf8 65. h4 Kg8 66. Kd7 Bf2 67. g5 Bxh4 68. gxh6 1-0

[Event "ARG U20-ch"]
[Site "Tucuman"]
[Date "1977.??.??"]
[Round "8"]
[White "Zarlenga, Marcelo"]
[Black "Peiro, Sergio F"]
[Result "1/2-1/2"]
[ECO "B19"]
[PlyCount "37"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Rh4 Ngf6 12. Bf4 Qa5+ 13. Bd2 Qc7 14. 0-0-0 e6 15. Kb1 Bd6 16. Ne4 Nxe4 17. Qxe4 Nf6 18. Qe2 0-0-0 19. Ne5 1/2-1/2

[Event "Latin Am-Cup3 corr"]
[Site "corr"]
[Date "1972.??.??"]
[Round "?"]
[White "De Oliveira Barroso, Ubirajara"]
[Black "Peiro, Sergio F"]
[Result "0-1"]
[ECO "A23"]
[PlyCount "58"]
[EventDate "1972.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 c6 4. Nf3 e4 5. Nd4 d5 6. cxd5 cxd5 7. d3 Bc5 8. Nb3 Bb4 9. Bg2 0-0 10. 0-0 Bf5 11. Nd4 Bg6 12. Bg5 Bxc3 13. bxc3 Nbd7 14. Qc2 Rc8 15. f4 Qb6 16. Rac1 h6 17. Bxf6 Nxf6 18. f5 Bh5 19. dxe4 dxe4 20. Kh1 Rfe8 21. h3 Qd6 22. Kh2 Nd5 23. Qd2 Qe5 24. e3 Bf3 25. Nxf3 exf3 26. Rxf3 Nxe3 27. Qd3 Rcd8 28. Qb1 Rd2 29. Rg1 Qd5 0-1

