[Event "CHI-ch+"]
[Site "Santiago de Chile"]
[Date "1980.10.11"]
[Round "17"]
[White "Berroeta, Juan"]
[Black "Araya, Mario"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "81"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 0-0 10. Bg5 c6 11. Qf3 Bd6 12. h3 Rb8 13. Rab1 h6 14. Bh4 Rb4 15. Bg3 Bxg3 16. fxg3 Qb6+ 17. Kh2 Qb8 18. b3 Rh4 19. Rbe1 Rh5 20. Ne2 c5 21. Nf4 Re5 22. c4 d4 23. Nd5 Nxd5 24. cxd5 Bb7 25. Bc4 Qd6 26. Rxe5 Qxe5 27. Rf2 Qd6 28. Qf5 g6 29. Qf4 Qxf4 30. Rxf4 Kg7 31. b4 cxb4 32. Rxd4 Kf6 33. Bb3 a5 34. a3 Ke5 35. Rd2 bxa3 36. d6 f5 37. d7 Rd8 38. Ba4 Bd5 39. Re2+ Kd6 40. Rd2 a2 41. Rd1 0-1

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.10.09"]
[Round "16"]
[White "Godoy Bugueno, David A"]
[Black "Berroeta, Juan"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2350"]
[PlyCount "97"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Nf3 Nc6 4. Nxd4 Bc5 5. Nb3 Be7 6. Nc3 Nf6 7. Be2 0-0 8. 0-0 d6 9. f4 Re8 10. Bf3 Bf8 11. Re1 a5 12. a4 Nb4 13. Be3 c6 14. Bf2 Be6 15. Nd4 Qc7 16. Nxe6 Rxe6 17. Qd2 Ree8 18. Rad1 Rad8 19. Bd4 Nd7 20. Kh1 Na6 21. Qf2 Nac5 22. b3 Ne6 23. Be3 Rb8 24. g3 b5 25. axb5 cxb5 26. Nd5 Qc8 27. f5 Nec5 28. Bf4 f6 29. h3 Ne5 30. Bg2 a4 31. b4 Ncd7 32. g4 h6 33. c3 Qb7 34. Be3 Rec8 35. Qg3 Rc6 36. h4 Nc4 37. Bd4 Nde5 38. g5 hxg5 39. hxg5 fxg5 40. Qxg5 Qf7 41. Rf1 Rb7 42. Rf4 Be7 43. f6 Bd8 44. Bf3 g6 45. Kg2 a3 46. Rh4 a2 47. Ra1 Nb6 48. Bxb6 Rbxb6 49. Rxa2 1-0

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.10.08"]
[Round "15"]
[White "Berroeta, Juan"]
[Black "Scholz Solis, Guillermo"]
[Result "1-0"]
[ECO "B25"]
[BlackElo "2375"]
[PlyCount "145"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Nh3 Nge7 7. 0-0 0-0 8. f4 d6 9. g4 f5 10. gxf5 gxf5 11. Rf3 Nd4 12. Rg3 Ng6 13. Ne2 Nc6 14. c3 Nce7 15. Be3 Rb8 16. Qb3 Qb6 17. Qc2 Qc7 18. Rf1 Bd7 19. Bf3 b5 20. Bh5 Rf6 21. Ng5 Rbf8 22. d4 cxd4 23. Nxd4 e5 24. fxe5 dxe5 25. Qb3+ Qc4 26. Qxc4+ bxc4 27. Nxf5 Bxf5 28. exf5 Nf4 29. Bxf4 exf4 30. Rxf4 Nxf5 31. Rh3 Bh6 32. Rg4 Kh8 33. Rf3 Ng7 34. Rxf6 Rxf6 35. Nf7+ Kg8 36. Nxh6+ Rxh6 37. Be8 Rb6 38. Rg2 Kf8 39. Bd7 Nh5 40. Bg4 Nf4 41. Rf2 Rf6 42. Kf1 Ke7 43. Be2 Nd5 44. Rxf6 Kxf6 45. Kf2 Nb6 46. Ke3 Ke5 47. b3 Nd5+ 48. Kd2 cxb3 49. axb3 a5 50. Bb5 Nb6 51. Kd3 Kd5 52. Be8 Kc5 53. Bf7 Nc8 54. h4 Nd6 55. Be6 h6 56. h5 Nb5 57. Bf5 Nd6 58. Bd7 Kd5 59. Ke3 Ke5 60. Bc6 Nf5+ 61. Kd3 Nd6 62. Bh1 Nb5 63. Bf3 Nc7 64. Kc4 Kf4 65. Bd5 Ke3 66. Bf7 Kd2 67. Kc5 Na6+ 68. Kb6 Nb8 69. c4 Kc3 70. c5 Nd7+ 71. Kb5 Ne5 72. Bg8 Nd7 73. c6 1-0

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.10.07"]
[Round "14"]
[White "Cifuentes Parada, Roberto"]
[Black "Berroeta, Juan"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2335"]
[PlyCount "49"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. 0-0 0-0 7. a4 a5 8. Qe2 c6 9. h3 Qc7 10. Ba2 b6 11. Rd1 Ba6 12. Qe3 Bc8 13. Qg5 Re8 14. Qg3 Nh5 15. Qh2 exd4 16. Nxd4 Nc5 17. Nxc6 Bb7 18. Nxe7+ Qxe7 19. Qxd6 Nxe4 20. Qxe7 Rxe7 21. Nxe4 Bxe4 22. Bb3 h6 23. Be3 Rc8 24. Rd6 Rc6 25. Rad1 1-0

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.10.05"]
[Round "13"]
[White "Berroeta, Juan"]
[Black "Silva, Carlos Alessandro"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "96"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 Nd7 4. g3 Ngf6 5. Bg2 Qc7 6. Ngf3 dxe4 7. dxe4 e5 8. 0-0 Be7 9. c3 0-0 10. Qc2 Re8 11. Re1 Nc5 12. b4 Ncd7 13. Bb2 c5 14. b5 a6 15. a4 c4 16. Bf1 axb5 17. axb5 Rxa1 18. Rxa1 Nb6 19. Ba3 Bxa3 20. Rxa3 h6 21. h3 Be6 22. Ra7 Rb8 23. Nb1 Ne8 24. Qb2 Nd6 25. Nfd2 Qc5 26. Ra5 Rc8 27. Qa3 Qxa3 28. Nxa3 Rc5 29. f4 f6 30. f5 Bd7 31. Be2 Kf8 32. Kf1 Ke7 33. Ke1 Kd8 34. h4 Kc7 35. g4 Bc6 36. Ndxc4 Ndxc4 37. Nxc4 Nxc4 38. Bxc4 Rxc4 39. bxc6 Rxe4+ 40. Kf2 Kxc6 41. Kf3 Rf4+ 42. Kg3 h5 43. gxh5 Rxf5 44. h6 gxh6 45. Kg4 Rf4+ 46. Kh5 e4 47. Kg6 Rxh4 48. Kxf6 b5 0-1

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.10.04"]
[Round "12"]
[White "Rosa Valenzuela, Fernando"]
[Black "Berroeta, Juan"]
[Result "1-0"]
[ECO "A02"]
[PlyCount "95"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Bg4 5. e3 Nc6 6. Bb5 Nge7 7. 0-0 0-0 8. d4 a6 9. Be2 Ng6 10. Nbd2 Qe7 11. Nc4 Rad8 12. Nxd6 Rxd6 13. h3 Bc8 14. Qe1 Rf6 15. Bd2 Re8 16. Bd3 Qd6 17. Qf2 Nb4 18. Bxb4 Qxb4 19. c3 Qa5 20. a3 Qh5 21. Rae1 c5 22. Qg3 h6 23. Bxg6 Rxg6 24. Qh4 Qxh4 25. Nxh4 Rb6 26. Rf2 cxd4 27. cxd4 Rb3 28. e4 Rd3 29. Nf3 b5 30. Rd2 Rb3 31. Kf2 b4 32. Re3 Rxe3 33. Kxe3 bxa3 34. bxa3 Bf5 35. e5 Rb8 36. Kf4 Bd7 37. Rd3 g5+ 38. Ke4 Kg7 39. d5 Rb2 40. Nd4 a5 41. e6 fxe6 42. dxe6 Be8 43. Ke5 Rb1 44. Nf5+ Kg6 45. Rd8 Re1+ 46. Kd6 Bb5 47. Rg8+ Kf6 48. Rf8+ 1-0

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.10.03"]
[Round "11"]
[White "Berroeta, Juan"]
[Black "Jimenez Rojas, Hector"]
[Result "0-1"]
[ECO "D42"]
[PlyCount "104"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Nc6 7. cxd5 Nxd5 8. Bd3 Be7 9. 0-0 0-0 10. Ne4 f5 11. Ng3 Bf6 12. Bb5 Nde7 13. Ne2 Qb6 14. Qa4 a6 15. Bc4 Qd8 16. Be3 Na5 17. Bd3 b5 18. Qd1 Nd5 19. Rc1 Bb7 20. a3 Nc6 21. Bb1 Rc8 22. Qd2 Nce7 23. Ba2 Qd6 24. Bg5 Bxg5 25. Qxg5 h6 26. Qe3 Ng6 27. Rfe1 Kh7 28. b4 Nf6 29. Ng3 Ne4 30. Qd3 Rxc1 31. Rxc1 Rd8 32. Qd1 Rd7 33. Ne2 Rd8 34. Bb1 Nf6 35. Qd3 Nf4 36. Nxf4 Qxf4 37. Qe3 Qd6 38. h3 Bxf3 39. gxf3 Nd5 40. Qe5 Nf4 41. Kh2 Qxd4 42. Qxd4 Rxd4 43. Rc6 Rd2 44. Kg3 g5 45. a4 bxa4 46. Bc2 a3 47. Bb3 Ne2+ 48. Kg2 Nd4 49. Rc7+ Kg6 50. Bxe6 Nxe6 51. Rc6 Kf6 52. Rxa6 a2 0-1

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.10.01"]
[Round "10"]
[White "Velasquez Ojeda, Cesar"]
[Black "Berroeta, Juan"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2310"]
[PlyCount "67"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 g6 4. Nf3 Bg7 5. c4 d6 6. d4 Nh6 7. dxe5 0-0 8. Nc3 Nxe5 9. Be2 Nhg4 10. Nxe5 Nxe5 11. Qd2 Be6 12. 0-0 Qh4 13. Nd5 Rac8 14. Rac1 Rfe8 15. Rfe1 c6 16. Nf4 Rcd8 17. Nxe6 Rxe6 18. g3 Qe4 19. Qa5 Rde8 20. Qxa7 g5 21. Qxb7 Rh6 22. Bxe5 Bxe5 23. Bf1 Ree6 24. Bg2 Qf5 25. Qxc6 Ref6 26. Re2 g4 27. c5 Qh5 28. Kf1 Qxh2 29. Qc8+ Kg7 30. Qxg4+ Rfg6 31. Qe4 Bxg3 32. fxg3 Qxg3 33. Rf2 Re6 34. Qf4 1-0

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.30"]
[Round "9"]
[White "Berroeta, Juan"]
[Black "Araoz, Hernan"]
[Result "1/2-1/2"]
[ECO "A05"]
[PlyCount "39"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 Nc6 5. d3 d6 6. Nf3 Nf6 7. 0-0 0-0 8. h3 Re8 9. Be3 d5 10. Nxd5 Nxd5 11. exd5 Nb4 12. Ng5 h6 13. Ne4 Nxd5 14. Bd2 c6 15. Re1 Bf5 16. c4 Nf6 17. Be3 Nxe4 18. dxe4 Be6 19. Qxd8 Rexd8 20. b3 1/2-1/2

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.29"]
[Round "8"]
[White "Wachtendorff, Fernando"]
[Black "Berroeta, Juan"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2210"]
[PlyCount "54"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. dxe5 dxe5 7. Ng5 0-0 8. Bxf7+ Rxf7 9. Ne6 Qe8 10. Nxc7 Qd8 11. Nxa8 b5 12. 0-0 Bb7 13. Be3 a6 14. f3 Qxa8 15. Qd2 Nc5 16. Rad1 Ne6 17. a4 Qe8 18. axb5 axb5 19. Qd3 Bc6 20. Nd5 Bf8 21. c3 g5 22. g4 Bxd5 23. exd5 Nf4 24. Bxf4 gxf4 25. h3 Bc5+ 26. Kg2 Nd7 27. c4 Qe7 0-1

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.27"]
[Round "7"]
[White "Berroeta, Juan"]
[Black "Campos Moreno, Javier B"]
[Result "1/2-1/2"]
[ECO "B24"]
[BlackElo "2305"]
[PlyCount "101"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. f4 Nge7 7. Nh3 d5 8. 0-0 0-0 9. g4 dxe4 10. dxe4 Bxc3 11. bxc3 Qxd1 12. Rxd1 e5 13. f5 f6 14. Be3 b6 15. Bf1 g5 16. Nf2 Rd8 17. Rxd8+ Nxd8 18. Rd1 Nf7 19. Bc4 Kf8 20. h4 h6 21. hxg5 hxg5 22. a4 Bb7 23. Kg2 Rd8 24. Rh1 Bc6 25. Rh7 Be8 26. a5 Nd6 27. Be6 Bf7 28. Bxf7 Nxf7 29. Nd3 Nc6 30. axb6 axb6 31. Kf3 Na5 32. Rh1 Nc4 33. Ra1 Rd7 34. Ra8+ Ke7 35. Bc1 Nfd6 36. Nb2 Nxb2 37. Bxb2 Nc4 38. Bc1 Rd1 39. Be3 Re1 40. Ra7+ Kd6 41. Bf2 Nd2+ 42. Kg2 Re2 43. Rf7 Nxe4 44. Kf3 Nxc3 45. Rxf6+ Kd5 46. Rxb6 e4+ 47. Kg3 e3 48. Bg1 Re1 49. Kg2 Ne4 50. Rb3 e2 51. Re3 1/2-1/2

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.26"]
[Round "6"]
[White "Vidal Torres, Ricardo"]
[Black "Berroeta, Juan"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "56"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Nbd2 Nc5 6. Nc4 d5 7. Bg5 Qd7 8. Ne3 c6 9. Be2 Be7 10. Bxe7 Qxe7 11. 0-0 0-0 12. c4 dxc4 13. Bxc4 Nba6 14. a3 Be6 15. Qc2 Bxc4 16. Qxc4 Qe6 17. Qh4 Qg6 18. Rad1 Ne6 19. b4 Rad8 20. Qc4 Nac7 21. a4 a6 22. Rd6 Ne8 23. Rxd8 Nxd8 24. Qc5 Nc7 25. Qb6 Nd5 26. Nxd5 cxd5 27. Qc5 Ne6 28. Qe3 h6 1/2-1/2

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.25"]
[Round "5"]
[White "Berroeta, Juan"]
[Black "Zamora, Carlos"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "87"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 d6 6. Nxd4 Nxd5 7. exd5 Ne5 8. Bb5+ Bd7 9. Qe2 Be7 10. f4 Ng6 11. Be3 0-0 12. 0-0-0 Re8 13. Bd3 Bf6 14. Qf2 c5 15. dxc6 bxc6 16. Nb3 a5 17. Nd2 Rb8 18. c3 Be6 19. Bb1 Bd5 20. Rhe1 a4 21. Bd4 Rxe1 22. Rxe1 a3 23. b3 c5 24. Bxf6 Qxf6 25. Qe3 Bxg2 26. Nc4 d5 27. Nxa3 Qxf4 28. Bxg6 Qxe3+ 29. Rxe3 hxg6 30. Re7 Rc8 31. Nb5 Rc6 32. Kd2 g5 33. a4 f5 34. Nc7 f4 35. Ne6 f3 36. Nxg5 Kf8 37. Rf7+ Ke8 38. Rf5 g6 39. Rf4 Rb6 40. Kc2 Rb7 41. Nxf3 Rh7 42. b4 Bxf3 43. Rxf3 Rxh2+ 44. Kd3 1/2-1/2

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.23"]
[Round "4"]
[White "Araya, Ricardo"]
[Black "Berroeta, Juan"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "79"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. 0-0 0-0 7. a4 a5 8. Re1 c6 9. h3 Qc7 10. Be3 h6 11. Qd2 Re8 12. dxe5 Nxe5 13. Nxe5 dxe5 14. Bxh6 Rd8 15. Qg5 Ne8 16. Qg3 Rd6 17. Be3 Be6 18. Bxe6 Rxe6 19. f3 Rg6 20. Qf2 Qc8 21. Kh1 Nf6 22. Ne2 Nh5 23. g4 Qe6 24. Qh2 Nf6 25. Ng3 Nh7 26. h4 Qc4 27. Nf5 Re6 28. Red1 Nf8 29. Qf2 Bd8 30. Rd3 g6 31. b3 Qa6 32. Nh6+ Kg7 33. Rad1 Be7 34. g5 Rc8 35. f4 c5 36. f5 gxf5 37. exf5 Rxh6 38. gxh6+ Kh7 39. Qg2 Qc6 40. Rd5 1-0

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.22"]
[Round "3"]
[White "Berroeta, Juan"]
[Black "Toloza Caldera, Gaston I"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "50"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 b6 3. Bc4 e6 4. Nf3 Bb7 5. 0-0 a6 6. a4 d5 7. exd5 exd5 8. Ba2 Be7 9. d4 Nf6 10. Ne2 0-0 11. Ng3 Ne4 12. Bf4 Nxg3 13. Bxg3 Nd7 14. c3 Nf6 15. Bh4 c4 16. Ne5 Ne4 17. Bxe7 Qxe7 18. f3 Nd6 19. Qd2 Rfe8 20. Rae1 Qh4 21. Bb1 Rad8 22. g3 Qh5 23. Qf4 Re6 24. Ng4 Rde8 25. Re5 Rxe5 1/2-1/2

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.21"]
[Round "2"]
[White "Salazar Jacob, Hernan"]
[Black "Berroeta, Juan"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2315"]
[PlyCount "69"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. 0-0 c6 8. a4 0-0 9. a5 Re8 10. Re1 exd4 11. Nxd4 d5 12. exd5 Rxe1+ 13. Qxe1 Nxd5 14. Nxd5 cxd5 15. c3 Ne5 16. Qe2 Nc6 17. Nxc6 bxc6 18. Be3 Be6 19. Qd2 Qe7 20. b4 Rd8 21. Bc5 Qd7 22. Bd4 h5 23. Bxg7 Kxg7 24. Qd4+ Kg8 25. Re1 Qe7 26. h4 Rd7 27. Re5 Qf8 28. Bf3 Qh6 29. Qc5 Qg7 30. Qe3 Qf6 31. Be2 Bf5 32. Bxh5 Be4 33. Re8+ Kg7 34. Bg4 Rb7 35. Qc5 1-0

[Event "CHI-ch"]
[Site "Santiago de Chile"]
[Date "1980.09.20"]
[Round "1"]
[White "Abarca Aguirre, Manuel"]
[Black "Berroeta, Juan"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2220"]
[PlyCount "33"]
[EventDate "1980.09.20"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "CHI"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. 0-0 0-0 7. Qe2 c6 8. a4 Qc7 9. h3 h6 10. a5 Re8 11. dxe5 dxe5 12. Nh4 Nf8 13. Nf5 Be6 14. Bxe6 Nxe6 15. Be3 Bc5 16. Qf3 Bxe3 17. fxe3 1/2-1/2

