[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.08"]
[Round "1"]
[White "Brond, Victor"]
[Black "Hase, Juan Carlos"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2345"]
[BlackElo "2430"]
[PlyCount "105"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e5 5. O-O e4 6. Nd4 c5 7. Nc2 d5 8. cxd5 Bxd5 9. b3 Qd7 10. Bb2 Be7 11. Ne3 Bb7 12. Nc3 O-O 13. Qb1 Re8 14. Nxe4 Nxe4 15. Bxe4 Bxe4 16. Qxe4 Bf6 17. Qxa8 Bxb2 18. Rab1 Nc6 19. Qxe8+ Qxe8 20. Rxb2 Qe5 21. Rfb1 Nd4 22. d3 h5 23. h4 a5 24. Rd2 Qe6 25. Re1 f6 26. Nc2 Nb5 27. d4 Nc3 28. dxc5 bxc5 29. Ne3 Ne4 30. Rd3 a4 31. Red1 axb3 32. axb3 Qe5 33. Nc4 Qf5 34. Rf3 Qe6 35. Nd2 Nd6 36. Re3 Qd5 37. Rd3 Qe6 38. e3 Qg4 39. Rc1 Nf5 40. Rc4 Qd1+ 41. Kg2 Kh7 42. Rd5 Ne7 43. Rd6 Nf5 44. Rd5 Ne7 45. Rd6 Nf5 46. Rd7 Kg6 47. Re4 Qc2 48. Rc4 Qd1 49. Re4 Qc2 50. Rf4 Qd1 51. e4 Nh6 52. e5 fxe5 53. Nf3 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.08"]
[Round "1"]
[White "Cuasnicu, Oscar"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2400"]
[BlackElo "2480"]
[PlyCount "71"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. dxe5 O-O 7. Qe2 Nc5 8. Nc3 a6 9. Bc4 d6 10. Bf4 Ne6 11. Bxe6 fxe6 12. Qe3 d5 13. Ne2 Qe8 14. c3 h6 15. h3 a5 16. Nh2 b6 17. Qg3 Kh7 18. Be3 Ba6 19. Rfe1 Bxe2 20. Rxe2 Qh5 21. Qg4 Qxg4 22. hxg4 Rad8 23. Nf3 g5 24. Rd1 Kg6 25. Rc2 Rxf3 26. gxf3 Nxe5 27. Kg2 Rf8 28. Re2 Nxf3 29. Bd4 Nxd4 30. cxd4 Rf6 31. Re3 Bd6 32. Rf3 Bf4 33. Rc3 Bd6 34. Rf3 Bf4 35. Rc3 Bd6 36. Rf3 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.08"]
[Round "1"]
[White "Garcia Palermo, Carlos"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2370"]
[BlackElo "2315"]
[PlyCount "67"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. Bg5 Nc6 6. Qd2 h6 7. Bh4 Nf6 8. Nc3 e6 9. O-O-O Qa5 10. Bg3 b5 11. Bxd6 b4 12. Bxf8 bxc3 13. Qd6 Qb6 14. b3 Nxe4 15. Qf4 f5 16. Bxg7 Qb4 17. Kb1 Nd2+ 18. Qxd2 cxd2 19. Bxh8 a5 20. a4 Bb7 21. Rxd2 Rd8 22. Rxd8+ Nxd8 23. Bc4 Ke7 24. Rd1 Nf7 25. Bb2 Nd6 26. Ne5 Be4 27. f3 Nxc4 28. bxc4 Ba8 29. Rd7+ Ke8 30. Rh7 Bb7 31. c5 Bd5 32. c4 Qb3 33. cxd5 Qd1+ 34. Ka2 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.08"]
[Round "1"]
[White "Letelier Martner, Rene"]
[Black "Garcia, Raimundo"]
[Result "0-1"]
[ECO "E67"]
[WhiteElo "2350"]
[BlackElo "2425"]
[PlyCount "78"]
[EventDate "1976.03.08"]

1. c4 g6 2. g3 Bg7 3. Bg2 e5 4. Nc3 d6 5. Nf3 Nf6 6. d4 Nbd7 7. O-O O-O 8. dxe5 dxe5 9. Qc2 c6 10. b3 Re8 11. e4 Bf8 12. Bb2 Nc5 13. Rfd1 Qb6 14. h3 Nh5 15. Ne2 f6 16. g4 Ng7 17. g5 Be7 18. Nh2 Nh5 19. Ng4 Bxg4 20. hxg4 Ng7 21. Qc3 Nge6 22. Bc1 Rad8 23. Be3 Rxd1+ 24. Rxd1 Rd8 25. Rf1 a5 26. gxf6 Bxf6 27. g5 Bg7 28. Bh3 Nd4 29. Ng3 Qb4 30. Qxb4 axb4 31. Kg2 Ra8 32. Bd2 Rxa2 33. Bxb4 Nd3 34. Be7 Nf4+ 35. Kh2 Nf3+ 36. Kh1 Nxh3 37. Kg2 Nfxg5 38. Bxg5 Nxg5 39. Rd1 h5 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.08"]
[Round "1"]
[White "Rubinetti, Jorge Alberto"]
[Black "Grinberg, Ricardo"]
[Result "1-0"]
[ECO "C53"]
[WhiteElo "2380"]
[BlackElo "2425"]
[PlyCount "169"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. d5 Nd8 7. d6 Qxd6 8. Qxd6 cxd6 9. a4 Nf6 10. Bd5 Nc6 11. Na3 Bc7 12. O-O Nxd5 13. exd5 Ne7 14. Rd1 b6 15. Nb5 Bb8 16. a5 bxa5 17. Rxa5 Bb7 18. c4 a6 19. Nc3 O-O 20. Bd2 h6 21. Ra3 Bc7 22. Na2 Rfb8 23. Ba5 Bxa5 24. Rxa5 Bc8 25. b4 f6 26. Nd2 f5 27. Rb1 Rb6 28. Kf1 Rab8 29. Ke2 Ng6 30. g3 Kf7 31. Rc1 Kf6 32. f3 Ne7 33. Nb1 Ra8 34. Nbc3 Rbb8 35. Rb1 Bb7 36. Na4 Bc8 37. N2c3 g6 38. Kd3 h5 39. b5 axb5 40. Rxa8 Rxa8 41. cxb5 Bb7 42. Nb6 Ra3 43. Kc4 Kf7 44. Kb4 Ra7 45. Rd1 Nc8 46. Nc4 Ra8 47. Na4 Ke7 48. Rd2 Rb8 49. Nab6 Nxb6 50. Nxb6 g5 51. Rc2 Kd8 52. Ka5 Bc8 53. h4 gxh4 54. gxh4 Bb7 55. Rg2 Kc7 56. Rg7 Bc8 57. Nc4 Ra8+ 58. Kb4 Bb7 59. b6+ Kd8 60. Nxd6 Bxd5 61. b7 Bxb7 62. Nxb7+ Kc7 63. Nc5 Ra1 64. Rxd7+ Kc6 65. Rf7 Rb1+ 66. Nb3 Rh1 67. Rxf5 Rxh4+ 68. Kc3 Kd5 69. Nd2 Ke6 70. Rf8 Ke7 71. Rh8 Kf6 72. Kd3 Rd4+ 73. Ke3 Ra4 74. Rxh5 Ra3+ 75. Ke2 Ra2 76. Rh8 Kf5 77. Rf8+ Ke6 78. Rd8 Kf5 79. Ke3 Ra3+ 80. Rd3 Ra1 81. Ne4 Re1+ 82. Kf2 Ra1 83. Rd6 Ra2+ 84. Kg3 Ra6 85. Kh3 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.08"]
[Round "1"]
[White "Schweber, Samuel"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[ECO "B02"]
[WhiteElo "2455"]
[BlackElo "2380"]
[PlyCount "57"]
[EventDate "1976.03.08"]

1. e4 Nf6 2. e5 Nd5 3. Nc3 Nxc3 4. dxc3 d6 5. Bc4 Nc6 6. Nf3 dxe5 7. Qxd8+ Nxd8 8. Nxe5 f6 9. Nd3 e5 10. f4 e4 11. Nf2 f5 12. Be3 Be6 13. Be2 Nf7 14. c4 O-O-O 15. O-O Be7 16. Rad1 c5 17. Rxd8+ Rxd8 18. Rd1 b6 19. Rxd8+ Bxd8 20. b3 Bf6 21. Nd1 Kd7 22. Kf2 Kc6 23. Ke1 Nd6 24. Kd2 Bd4 25. c3 Bf6 26. Bf2 a6 27. a4 g5 28. g3 g4 29. Ne3 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.08"]
[Round "1"]
[White "Seidler, Aldo Emilio"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[ECO "A43"]
[BlackElo "2370"]
[PlyCount "69"]
[EventDate "1976.03.08"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O b6 7. Bg5 Bb7 8. Nd2 c5 9. d5 Na6 10. a4 Nc7 11. Nc4 Ba6 12. Qd2 Qd7 13. Rfe1 Rfe8 14. f4 Ng4 15. e5 dxe5 16. Bxg4 Qxg4 17. Nxe5 Bxe5 18. fxe5 Qd4+ 19. Qf2 Qxf2+ 20. Kxf2 Kg7 21. d6 exd6 22. Bf6+ Kh6 23. exd6 Ne6 24. h4 g5 25. hxg5+ Kg6 26. Nd5 Nxg5 27. Rxe8 Rxe8 28. d7 Re2+ 29. Kg1 Ne6 30. Nf4+ Nxf4 31. d8=Q Rxg2+ 32. Kh1 Rf2 33. Rg1+ Kf5 34. Qe7 Nh5 35. Qe5# 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.08"]
[Round "1"]
[White "Trois, Francisco"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2310"]
[BlackElo "2420"]
[PlyCount "21"]
[EventDate "1976.03.08"]

1. e4 Nc6 2. Nf3 d6 3. Bb5 Nf6 4. Qe2 a6 5. Bxc6+ bxc6 6. O-O Bg4 7. h3 Bxf3 8. Qxf3 e6 9. d3 Be7 10. Nc3 O-O 11. Bd2 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.09"]
[Round "2"]
[White "Bronstein, Luis Marcos"]
[Black "Brond, Victor"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2380"]
[BlackElo "2345"]
[PlyCount "80"]
[EventDate "1976.03.08"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 c5 5. dxc5 Nc6 6. Nd4 Bd7 7. Nxc6 bxc6 8. b4 e6 9. Bd3 Qb8 10. c3 Qxe5+ 11. Be3 Ne7 12. O-O Nf5 13. Bg5 h6 14. Re1 Qc7 15. Bd2 g6 16. Qf3 Be7 17. Bf4 Qb7 18. Nd2 h5 19. Nb3 f6 20. Qe2 e5 21. Nd4 Kf7 22. Nxf5 gxf5 23. Rab1 Rab8 24. h4 Qc7 25. c4 d4 26. Bh2 Rbg8 27. Qf3 f4 28. Qe4 Bh3 29. Bf1 Qd7 30. Rbd1 Bf5 31. Qe2 Rg4 32. f3 Rg7 33. Kh1 Rhg8 34. Qf2 a5 35. a3 axb4 36. axb4 Rb8 37. b5 Bxc5 38. Qa2 Rgg8 39. Ra1 Ra8 40. Qb2 d3 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.09"]
[Round "2"]
[White "Emma, Jaime"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[ECO "A93"]
[WhiteElo "2420"]
[BlackElo "2380"]
[PlyCount "28"]
[EventDate "1976.03.08"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. O-O O-O 6. c4 c6 7. b3 Qe8 8. Bb2 d5 9. Ne5 Nbd7 10. Nd3 Ne4 11. Nd2 a5 12. f3 Nxd2 13. Qxd2 Nf6 14. Bc3 Bd8 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.09"]
[Round "2"]
[White "Garcia, Raimundo"]
[Black "Schweber, Samuel"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "2425"]
[BlackElo "2455"]
[PlyCount "51"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc4 e5 12. Ne4 exd4 13. Nxf6+ Qxf6 14. Qxd4 Qxd4 15. Nxd4 Nb6 16. Bb3 Rd8 17. Rfd1 Kf8 18. f3 Rb8 19. Ne2 Bd7 20. Ng3 Be8 21. Ne4 Ke7 22. Kf2 Na8 23. g4 Nc7 24. Ng3 g6 25. Ne4 b6 26. Ba4 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.09"]
[Round "2"]
[White "Grinberg, Ricardo"]
[Black "Cuasnicu, Oscar"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "2425"]
[BlackElo "2400"]
[PlyCount "50"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nc6 6. Nxc6 bxc6 7. O-O d5 8. Nd2 Nf6 9. Qe2 Be7 10. b3 O-O 11. Bb2 Nd7 12. c4 Nc5 13. Rad1 Nxd3 14. Qxd3 Bf6 15. Bxf6 Qxf6 16. exd5 exd5 17. cxd5 cxd5 18. Qxd5 Be6 19. Ne4 Qg6 20. Qd4 Rfe8 21. Rfe1 Bg4 22. Rc1 h5 23. Nc5 Bf3 24. g3 Rad8 25. Rxe8+ Rxe8 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.09"]
[Round "2"]
[White "Rocha, Antonio Cavilhas"]
[Black "Letelier Martner, Rene"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "2315"]
[BlackElo "2350"]
[PlyCount "46"]
[EventDate "1976.03.08"]

1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. c4 e6 5. Nc3 Nc6 6. a3 a6 7. Bd3 cxd4 8. exd4 dxc4 9. Bxc4 Be7 10. O-O O-O 11. Ba2 b5 12. Re1 b4 13. Na4 Qa5 14. Be3 bxa3 15. bxa3 Nd5 16. Bxd5 exd5 17. Bg5 Bxg5 18. Nxg5 Bf5 19. Rc1 Rfe8 20. Rxe8+ Rxe8 21. Nf3 Na7 22. Rc5 Nb5 23. Rxd5 Bc2 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.09"]
[Round "2"]
[White "Sanguineti, Raul"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "D91"]
[WhiteElo "2480"]
[BlackElo "2370"]
[PlyCount "81"]
[EventDate "1976.03.08"]

1. c4 g6 2. d4 Nf6 3. Nc3 d5 4. Bg5 Ne4 5. Bh4 c5 6. e3 Nxc3 7. bxc3 Bg7 8. cxd5 cxd4 9. cxd4 Qxd5 10. Nf3 Nc6 11. Be2 O-O 12. O-O Bf5 13. Nd2 e5 14. Bf3 e4 15. Be2 Na5 16. Qa4 Rfc8 17. Rfc1 Be6 18. Be7 Rxc1+ 19. Rxc1 Qxa2 20. Qxa2 Bxa2 21. Ra1 Nc6 22. Rxa2 Nxe7 23. Nxe4 Nc6 24. Nd6 b6 25. Bf3 Rd8 26. Nxf7 Kxf7 27. Bxc6 a5 28. f4 Ke6 29. Kf2 Kd6 30. d5 Kc5 31. e4 Rf8 32. Ke3 Bh6 33. g3 g5 34. Rc2+ Kb4 35. fxg5 Bxg5+ 36. Kd4 Kb3 37. Rc3+ Kb4 38. Rc4+ Kb3 39. Ba4+ Ka3 40. e5 Rb8 41. Bb5 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.09"]
[Round "2"]
[White "Seidler, Aldo Emilio"]
[Black "Trois, Francisco"]
[Result "1-0"]
[ECO "B31"]
[BlackElo "2310"]
[PlyCount "99"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 Nf6 6. c3 Qb6 7. Bxc6 dxc6 8. d3 O-O 9. h3 Rd8 10. Qc2 Qa6 11. d4 cxd4 12. cxd4 Be6 13. Be3 h6 14. Nc3 Rac8 15. Rac1 Qa5 16. Ne5 Nd7 17. f4 Nxe5 18. fxe5 f6 19. exf6 exf6 20. Qf2 f5 21. e5 g5 22. g3 Rf8 23. Kh2 Rf7 24. h4 Qd8 25. b4 a6 26. a4 Bf8 27. b5 axb5 28. axb5 Bb4 29. Red1 Rd7 30. bxc6 bxc6 31. Qf3 Bxc3 32. Rxc3 Rb7 33. Rxc6 Rb2+ 34. Kg1 g4 35. Qh1 Rxc6 36. Qxc6 Qd5 37. Rc1 Rg2+ 38. Kf1 Qf3+ 39. Qxf3 gxf3 40. Bf2 f4 41. gxf4 Rh2 42. Rc6 Rh1+ 43. Bg1 Bd5 44. Rxh6 Kg7 45. Rd6 Be4 46. Kf2 Rxh4 47. Ke3 Bg6 48. Rd7+ Kf8 49. Bf2 Rh3 50. d5 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.09"]
[Round "2"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Hase, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C91"]
[WhiteElo "2370"]
[BlackElo "2430"]
[PlyCount "101"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 d6 9. c3 Bg4 10. Be3 exd4 11. cxd4 d5 12. e5 Ne4 13. Nc3 Nxc3 14. bxc3 Bh5 15. Bc2 Qd7 16. Qb1 Bg6 17. Bg5 Nd8 18. a4 c6 19. Bxg6 fxg6 20. Bxe7 Qxe7 21. Qb4 Qe6 22. Qd6 h6 23. axb5 cxb5 24. Ra3 Qxd6 25. exd6 Nf7 26. d7 Rfd8 27. Rc1 Kf8 28. Nh4 Ke7 29. Nxg6+ Kxd7 30. Rca1 Rdc8 31. Nf4 Kc6 32. Kf1 Kb7 33. Ne6 Kb6 34. Nxg7 Nd6 35. Re1 Ne4 36. Re3 Rc6 37. Rd3 Rac8 38. Nf5 Rxc3 39. Raxc3 Rxc3 40. Rxc3 Nxc3 41. Ke1 b4 42. Kd2 Ne4+ 43. Kc2 Nxf2 44. Ne3 a5 45. g4 a4 46. h4 Kc6 47. g5 hxg5 48. hxg5 Ne4 49. g6 Nf6 50. g7 Ng8 51. Kb2 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.10"]
[Round "3"]
[White "Brond, Victor"]
[Black "Garcia, Raimundo"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "2345"]
[BlackElo "2425"]
[PlyCount "61"]
[EventDate "1976.03.08"]

1. b3 e5 2. Bb2 d6 3. g3 Nf6 4. Bg2 g6 5. Nf3 Bg7 6. O-O O-O 7. c4 Nbd7 8. Nc3 Re8 9. Qc2 c6 10. e4 a5 11. d4 exd4 12. Nxd4 Nc5 13. a3 Qb6 14. Rfd1 Ng4 15. Rab1 f5 16. h3 Nh6 17. Kh2 Nf7 18. exf5 gxf5 19. Nxf5 Bxf5 20. Qxf5 Qxb3 21. Nd5 Bxb2 22. Nf6+ Kf8 23. Nxe8 Rxe8 24. Rd2 Na4 25. Rbxb2 Nxb2 26. Qb1 Qxc4 27. Rxb2 b5 28. Qxh7 Qd4 29. Rb3 c5 30. Rf3 Qg7 31. Qd3 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.10"]
[Round "3"]
[White "Cuasnicu, Oscar"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "B74"]
[WhiteElo "2400"]
[BlackElo "2420"]
[PlyCount "25"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 O-O 9. Nb3 Be6 10. f4 Qc8 11. Qd2 a5 12. a4 Nb4 13. Bf3 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.10"]
[Round "3"]
[White "Garcia Palermo, Carlos"]
[Black "Grinberg, Ricardo"]
[Result "1/2-1/2"]
[ECO "B83"]
[WhiteElo "2370"]
[BlackElo "2425"]
[PlyCount "42"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. Be3 Nc6 8. f4 Bd7 9. Ndb5 Qb8 10. a4 O-O 11. O-O b6 12. Bf3 a6 13. Na3 Qc7 14. Rf2 Rfd8 15. Rd2 Be8 16. Qf1 Nd7 17. Rad1 Nc5 18. b3 Qb8 19. g4 Bf6 20. Nab1 Be7 21. g5 Qc7 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.10"]
[Round "3"]
[White "Hase, Juan Carlos"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[ECO "B05"]
[WhiteElo "2430"]
[BlackElo "2380"]
[PlyCount "115"]
[EventDate "1976.03.08"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. O-O Be7 7. c4 Nb6 8. Nc3 O-O 9. Be3 d5 10. c5 Bxf3 11. gxf3 Nc8 12. b4 Bg5 13. Qd2 f6 14. f4 Bh4 15. Bg4 f5 16. Be2 Ne7 17. b5 Nd7 18. a4 Rf7 19. a5 Nf8 20. Rab1 h6 21. Kh1 Nh7 22. b6 axb6 23. cxb6 cxb6 24. axb6 Nc8 25. Nb5 Nf8 26. Nc7 Rb8 27. Qa5 Re7 28. Rfc1 Nxb6 29. Qxb6 Rc8 30. Nxe6 Rxc1+ 31. Bxc1 Qxb6 32. Rxb6 Nxe6 33. Ba3 Re8 34. Bh5 g6 35. Bxg6 Ra8 36. Rxe6 Rxa3 37. Bxf5 Rf3 38. Rg6+ Kf8 39. Rg4 Bd8 40. Be6 Rxf2 41. f5 Bg5 42. Bxd5 Rxf5 43. Kg2 h5 44. Re4 b5 45. h4 Bd2 46. Be6 Rf4 47. Rxf4+ Bxf4 48. Kf3 Bd2 49. Ke4 Be1 50. Bb3 Bxh4 51. Bd1 Bd8 52. Bxh5 Ke7 53. Kd5 Bb6 54. Be2 b4 55. Bc4 Ba7 56. Bb3 Bb6 57. Ba4 Ba7 58. Bb3 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.10"]
[Round "3"]
[White "Letelier Martner, Rene"]
[Black "Sanguineti, Raul"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "2350"]
[BlackElo "2480"]
[PlyCount "86"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 b6 5. Nc3 Bb7 6. Bg5 e6 7. e4 d6 8. f3 Be7 9. Qd2 a6 10. Be2 O-O 11. O-O Nbd7 12. Rfd1 Rc8 13. Nc2 h6 14. Bh4 Qc7 15. Ne3 Rfd8 16. Rac1 Nxe4 17. Nxe4 Bxh4 18. Qxd6 Bxe4 19. Qxc7 Rxc7 20. fxe4 Nc5 21. e5 Rxd1+ 22. Rxd1 Nd7 23. c5 Nxc5 24. b4 Ne4 25. Bxa6 Bf2+ 26. Kf1 Bxe3 27. Rd8+ Kh7 28. Bd3 g6 29. Bxe4 Rc4 30. Bf3 Rxb4 31. Rd3 Bf4 32. g3 Bxe5 33. Rb3 Rxb3 34. axb3 f5 35. Bc6 Kg7 36. Kf2 Kf6 37. Kf3 Bd6 38. h3 e5 39. g4 e4+ 40. Ke2 Ke5 41. Be8 f4 42. Bxg6 f3+ 43. Kf2 Kf4 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.10"]
[Round "3"]
[White "Rubinetti, Jorge Alberto"]
[Black "Seidler, Aldo Emilio"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2380"]
[PlyCount "63"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. g3 b5 5. Bg2 Bb7 6. d3 a6 7. O-O e6 8. a3 Qc7 9. h3 h6 10. f4 d5 11. e5 Nfd7 12. f5 Nxe5 13. fxe6 fxe6 14. Nf4 Kd7 15. Qh5 g5 16. Nxe6 Kxe6 17. Rxf8 Rxf8 18. Qxh6+ Rf6 19. Bxd5+ Ke7 20. Bxg5 Nf3+ 21. Kg2 Nxg5 22. Re1+ Ne6 23. Qg7+ Kd6 24. Qxf6 Bxd5+ 25. Nxd5 Qd7 26. Nf4 Qb7+ 27. Kh2 Nd7 28. Qxe6+ Kc7 29. Nd5+ Kb8 30. Qd6+ Ka7 31. Re7 Rd8 32. Nf6 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.10"]
[Round "3"]
[White "Schweber, Samuel"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2455"]
[BlackElo "2315"]
[PlyCount "50"]
[EventDate "1976.03.08"]

1. c4 Nf6 2. Nf3 c5 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. b3 O-O 8. Bb2 d6 9. d4 cxd4 10. Qxd4 a6 11. Rfd1 Nbd7 12. Ne1 Bxg2 13. Nxg2 Qc7 14. Ne3 Qb7 15. g4 Rfd8 16. g5 Ne8 17. h4 b5 18. Rac1 Ne5 19. Ba1 bxc4 20. bxc4 Qa7 21. Qf4 f5 22. Nb1 Qc5 23. Nd2 Ng6 24. Qh2 f4 25. Ng2 Qf5 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.10"]
[Round "3"]
[White "Trois, Francisco"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2310"]
[BlackElo "2370"]
[PlyCount "124"]
[EventDate "1976.03.08"]

1. Nf3 g6 2. e4 Bg7 3. d4 c6 4. c3 d6 5. Nbd2 Nf6 6. Be2 O-O 7. O-O Qc7 8. Re1 Nbd7 9. a4 Rb8 10. a5 b5 11. axb6 axb6 12. Bf1 b5 13. h3 Nb6 14. e5 Nfd5 15. Bd3 Nf4 16. Bc2 Nbd5 17. Nf1 dxe5 18. Nxe5 f6 19. Nd3 Nxd3 20. Bxd3 e5 21. dxe5 fxe5 22. Be4 Be6 23. Ng3 Qf7 24. Qc2 b4 25. Be3 b3 26. Qc1 Ra8 27. Bc5 Rxa1 28. Qxa1 Rd8 29. Qa5 Qe8 30. Ra1 Bf6 31. Qa4 Be7 32. Qa5 Bf7 33. Bf3 Rb8 34. c4 Nf4 35. Ne4 Nd3 36. Bxe7 Qxe7 37. Qc3 Nf4 38. Ra5 Qe6 39. Rxe5 Qxc4 40. Qe3 Nd5 41. Qg5 Rf8 42. Qd2 Kg7 43. Be2 Qa4 44. Bd1 Re8 45. Nc5 Qc4 46. Rxe8 Bxe8 47. Nxb3 Bf7 48. Na5 Qb4 49. Qxb4 Nxb4 50. Kf1 Nd3 51. b3 Bd5 52. g3 Kf6 53. Ke2 Nb4 54. Ke3 c5 55. f4 g5 56. fxg5+ Kxg5 57. h4+ Kf5 58. g4+ Ke5 59. g5 Kf5 60. Nc4 Bxc4 61. bxc4 h6 62. gxh6 Kg6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.11"]
[Round "4"]
[White "Emma, Jaime"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2420"]
[BlackElo "2370"]
[PlyCount "86"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+ Nc6 6. Bg5 dxc4 7. e3 Nd7 8. Qxc4 O-O 9. Be2 Nb6 10. Qc5 Re8 11. O-O Bf8 12. Rfd1 f6 13. Bh4 e6 14. Qb5 Qe7 15. Rac1 Bd7 16. Qb3 a5 17. Bg3 a4 18. Qc2 Nb4 19. Qd2 Bc6 20. a3 N4d5 21. Ne4 Qf7 22. Nc5 Rac8 23. e4 Ne7 24. h4 Red8 25. Qe3 h6 26. Bd3 Nd7 27. Nxe6 Qxe6 28. Bc4 Bd5 29. exd5 Qxe3 30. fxe3 Nf5 31. Bf2 Nd6 32. Bd3 f5 33. Ne5 Nf6 34. Nxg6 Nxd5 35. g4 fxg4 36. e4 Ne7 37. Nxe7+ Bxe7 38. e5 Ne8 39. Bf5 Ra8 40. Bxg4 c6 41. Kh2 Ng7 42. Rg1 Kh8 43. Rg2 Rg8 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.11"]
[Round "4"]
[White "Garcia, Raimundo"]
[Black "Hase, Juan Carlos"]
[Result "1-0"]
[ECO "C99"]
[WhiteElo "2425"]
[BlackElo "2430"]
[PlyCount "51"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. a3 exd4 15. Nb3 Re8 16. Nbxd4 Ne5 17. Bg5 h6 18. Bf4 Bd7 19. Rc1 Rac8 20. Bb3 Qb8 21. Rxc8 Rxc8 22. Nf5 Bf8 23. Bg3 Bxf5 24. Nxe5 dxe5 25. exf5 Re8 26. Bxf7+ 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.11"]
[Round "4"]
[White "Grinberg, Ricardo"]
[Black "Letelier Martner, Rene"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2425"]
[BlackElo "2350"]
[PlyCount "121"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. Be3 a6 8. a4 Nc6 9. f4 Bd7 10. Nb3 Na5 11. Nd2 Qc7 12. O-O d5 13. e5 Bc5 14. Bxc5 Qxc5+ 15. Kh1 Ng8 16. Rf3 Ne7 17. Rb1 Nac6 18. Nb3 Qb6 19. Bd3 g6 20. Ne2 Nb4 21. a5 Qc7 22. Qd2 Nec6 23. Ra1 O-O 24. c3 Nxd3 25. Rxd3 Ne7 26. Ned4 f6 27. Re3 f5 28. Qf2 Rab8 29. Qh4 Rf7 30. Nf3 b6 31. Ng5 Rg7 32. Rh3 h5 33. Nd4 Qc8 34. axb6 Rxb6 35. Qf2 Qb7 36. b4 Nc8 37. Nb3 Bb5 38. Nc5 Qe7 39. Qd4 Bc4 40. Re3 Na7 41. Nd7 Rc6 42. Nb8 Qb7 43. Nxc6 Nxc6 44. Qc5 Nd8 45. h3 Rc7 46. Qd4 Nc6 47. Qd2 d4 48. cxd4 Rd7 49. Nf3 Bd5 50. Kh2 Qb5 51. Nh4 Kh7 52. Rg3 Rg7 53. Qd1 Ne7 54. Ra5 Qxb4 55. Rxa6 Qb7 56. Raa3 Qb6 57. Rg5 Qb8 58. Rag3 Qe8 59. Qa1 Qb8 60. Qc1 Qb4 61. Qd1 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.11"]
[Round "4"]
[White "Rocha, Antonio Cavilhas"]
[Black "Brond, Victor"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2315"]
[BlackElo "2345"]
[PlyCount "56"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. Bg5 d6 3. Bxf6 gxf6 4. e3 e6 5. Nd2 f5 6. g3 Nd7 7. Bg2 Bg7 8. c3 Nf6 9. Qc2 d5 10. Ne2 Qe7 11. O-O h5 12. h4 Bd7 13. c4 c6 14. b4 Rc8 15. Rfb1 Ne4 16. Nf3 f6 17. a4 Kf7 18. Qb3 Bh6 19. cxd5 cxd5 20. Rc1 a6 21. Rxc8 Rxc8 22. Rc1 Qe8 23. Rxc8 Qxc8 24. Ne1 Qc4 25. Qxc4 dxc4 26. Bxe4 fxe4 27. Nc3 f5 28. Nc2 Bf8 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.11"]
[Round "4"]
[White "Sanguineti, Raul"]
[Black "Schweber, Samuel"]
[Result "1/2-1/2"]
[ECO "E54"]
[WhiteElo "2480"]
[BlackElo "2455"]
[PlyCount "45"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O cxd4 8. exd4 dxc4 9. Bxc4 b6 10. Bg5 Bb7 11. Rc1 Be7 12. Qe2 Nc6 13. Rfd1 Nb4 14. Ne5 Nbd5 15. Ba6 Nxc3 16. bxc3 Bxa6 17. Qxa6 Qc8 18. Qb5 Nd5 19. Bxe7 Nxe7 20. c4 Qc7 21. a4 Rad8 22. a5 bxa5 23. Ra1 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.11"]
[Round "4"]
[White "Seidler, Aldo Emilio"]
[Black "Cuasnicu, Oscar"]
[Result "0-1"]
[ECO "B33"]
[BlackElo "2400"]
[PlyCount "76"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. Bf4 e5 7. Be3 a6 8. N5c3 Be6 9. Na3 Nf6 10. Nc4 b5 11. Nb6 Rb8 12. Nbd5 Be7 13. a4 bxa4 14. Bxa6 O-O 15. Bb5 Nd4 16. Nxe7+ Qxe7 17. Bxd4 exd4 18. Qxd4 d5 19. O-O dxe4 20. Rfe1 Rfd8 21. Qxa4 Qc5 22. Rad1 Rxd1 23. Rxd1 h6 24. Rd4 Qg5 25. b4 Qe5 26. Qa7 Rxb5 27. Nxb5 Qxb5 28. Rd8+ Kh7 29. Qd4 Qa4 30. Qb2 Nd5 31. Rb8 Qa7 32. Qe5 e3 33. fxe3 Nxe3 34. Qe4+ Bf5 35. Qa8 Qd4 36. Rh8+ Kg6 37. Qc6+ Be6 38. Qc5 Qd2 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.11"]
[Round "4"]
[White "Trois, Francisco"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "2310"]
[BlackElo "2380"]
[PlyCount "98"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Bg7 6. Bg2 O-O 7. O-O e5 8. Nxd5 Qxd5 9. d3 Qd6 10. Nd2 Qe7 11. Nc4 Rd8 12. Bd2 c6 13. a4 Be6 14. Qc2 Bd5 15. Bc3 Na6 16. b3 f6 17. Rad1 Bxg2 18. Kxg2 Nb4 19. Qb1 Rd7 20. Bb2 Qe6 21. Ba3 Bf8 22. h3 Re8 23. Rfe1 b5 24. Ne3 f5 25. Rf1 f4 26. Bxb4 Bxb4 27. Ng4 h5 28. Nh2 g5 29. Qc2 Qd5+ 30. f3 fxg3 31. Kxg3 e4 32. dxe4 Qe5+ 33. Kg2 Bd6 34. Rxd6 Rxd6 35. Rc1 Red8 36. Qc5 Qf4 37. axb5 cxb5 38. Re1 a6 39. e5 Rg6 40. Qe7 Rf8 41. e3 Qf5 42. Re2 Re6 43. Qc7 Qxe5 44. Qc2 a5 45. Nf1 Qf5 46. Qxf5 Rxf5 47. Rc2 a4 48. e4 Rfe5 49. Ne3 Ra6 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.11"]
[Round "4"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[ECO "C14"]
[WhiteElo "2370"]
[BlackElo "2380"]
[PlyCount "120"]
[EventDate "1976.03.08"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ne4 6. Nxe4 Bxg5 7. Nxg5 Qxg5 8. h4 Qe7 9. Qd2 Bd7 10. h5 c5 11. dxc5 Nc6 12. f4 Qxc5 13. O-O-O O-O-O 14. Nf3 Kb8 15. h6 gxh6 16. Rxh6 Rc8 17. Kb1 d4 18. a3 Rhd8 19. Ng5 Be8 20. Ne4 Qf8 21. Rh3 f6 22. Nxf6 Bg6 23. Bd3 Ne7 24. Qb4 Qg7 25. Rg3 Nc6 26. Qd2 Qc7 27. Bxg6 hxg6 28. Ne4 Ne7 29. Nd6 Nf5 30. Nxf5 gxf5 31. Rd3 a6 32. Qf2 Qc5 33. Rxd4 Ka7 34. Qd2 Rxd4 35. Qxd4 Qxd4 36. Rxd4 Rg8 37. Rd2 Rg4 38. Rf2 Kb6 39. Rd2 Rxf4 40. Rd6+ Kc5 41. Rxe6 Kd5 42. Rb6 Kxe5 43. Rxb7 Rf1+ 44. Ka2 Rf2 45. Re7+ Kf6 46. Ra7 Rxg2 47. Rxa6+ Ke5 48. c3 f4 49. Ra8 f3 50. Rf8 Ke4 51. a4 Rg5 52. Re8+ Re5 53. Rh8 f2 54. Rh1 Kf3 55. Rf1 Kg2 56. Rc1 f1=Q 57. Rxf1 Kxf1 58. Kb3 Ke2 59. Kb4 Kd3 60. a5 Re8 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.13"]
[Round "5"]
[White "Brond, Victor"]
[Black "Sanguineti, Raul"]
[Result "1-0"]
[ECO "D86"]
[WhiteElo "2345"]
[BlackElo "2480"]
[PlyCount "51"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 b6 8. Ne2 Bb7 9. f3 Nc6 10. Be3 O-O 11. Qd2 e6 12. h4 Na5 13. Bd3 Qe7 14. Bh6 Rfd8 15. h5 Qf8 16. Bxg7 Qxg7 17. e5 c5 18. Kf2 Nc6 19. Qe3 cxd4 20. cxd4 Nb4 21. Be4 Bxe4 22. Qxe4 Rac8 23. hxg6 hxg6 24. Rh4 Nd5 25. Rah1 Ne7 26. Rh8+ 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.13"]
[Round "5"]
[White "Bronstein, Luis Marcos"]
[Black "Garcia, Raimundo"]
[Result "0-1"]
[ECO "E74"]
[WhiteElo "2380"]
[BlackElo "2425"]
[PlyCount "126"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. dxc5 Qa5 8. Bd2 Qxc5 9. Nf3 Nc6 10. O-O Bg4 11. Be3 Qa5 12. a3 Rfc8 13. b4 Qd8 14. Rc1 Bxf3 15. gxf3 Ne5 16. Nd5 Nxd5 17. exd5 b6 18. Kh1 Nd7 19. f4 a5 20. Bd4 axb4 21. Bxg7 Kxg7 22. Qd4+ Kg8 23. axb4 Ra4 24. Qb2 Nf6 25. Ra1 Rca8 26. Rxa4 Rxa4 27. Ra1 Qa8 28. Rxa4 Qxa4 29. Kg2 Ne8 30. Qd2 Ng7 31. Bd3 Qb3 32. b5 Nh5 33. Be2 Nf6 34. Qd4 Nd7 35. Qe4 Kf8 36. Qd4 f6 37. Qa1 Qc2 38. Qa8+ Kf7 39. Bf3 Qxc4 40. Qh8 Nf8 41. f5 Qxb5 42. Be4 Qe2 43. fxg6+ hxg6 44. Bxg6+ Kxg6 45. Qxf8 Qg4+ 46. Kf1 Qd1+ 47. Kg2 Qxd5+ 48. f3 Qg5+ 49. Kf2 Qh4+ 50. Kg2 f5 51. Qd8 Qg5+ 52. Kf2 Qd2+ 53. Kg3 Qe1+ 54. Kg2 Qe2+ 55. Kg3 f4+ 56. Kxf4 Qxh2+ 57. Ke3 Kf7 58. Kd3 Qf2 59. Qa8 Qc5 60. f4 d5 61. Qb8 Qd6 62. Qb7 Qa3+ 63. Kd4 Qc5+ 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.13"]
[Round "5"]
[White "Cuasnicu, Oscar"]
[Black "Trois, Francisco"]
[Result "1/2-1/2"]
[ECO "B49"]
[WhiteElo "2400"]
[BlackElo "2310"]
[PlyCount "41"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 a6 7. O-O Nf6 8. Be3 Bb4 9. Nxc6 bxc6 10. Na4 Rb8 11. c4 Be7 12. Bd3 c5 13. f4 Bb7 14. Nc3 O-O 15. Qf3 Bc6 16. b3 Ne8 17. Qh3 g6 18. Rae1 f5 19. Bd2 Rf7 20. Re2 Ng7 21. e5 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.13"]
[Round "5"]
[White "Garcia Palermo, Carlos"]
[Black "Seidler, Aldo Emilio"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "2370"]
[PlyCount "66"]
[EventDate "1976.03.08"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c3 b6 6. Ndf3 Ba6 7. Bxa6 Nxa6 8. Nh3 c5 9. O-O cxd4 10. cxd4 Nb4 11. Bg5 Qb8 12. Bd2 Qb7 13. Qb3 Nc6 14. Rfc1 Be7 15. Rc3 Rc8 16. Rac1 O-O 17. Qc2 Ndb8 18. a3 a5 19. Bg5 b5 20. Bxe7 Nxe7 21. Nfg5 g6 22. Nf4 b4 23. axb4 axb4 24. Rxc8 Rxc8 25. Qd2 Rxc1+ 26. Qxc1 Nbc6 27. Nf3 Qa6 28. g4 Qc4 29. Qd2 Na5 30. Kg2 Nec6 31. Ne2 Kg7 32. Qe3 Qc2 33. h4 Nc4 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.13"]
[Round "5"]
[White "Hase, Juan Carlos"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1/2-1/2"]
[ECO "B68"]
[WhiteElo "2430"]
[BlackElo "2315"]
[PlyCount "101"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Kb1 b4 12. Bxf6 Bxf6 13. Ne2 Be7 14. Ned4 Qb6 15. e5 d5 16. Nxc6 Bxc6 17. Bd3 h6 18. f5 O-O-O 19. Qf4 Bc5 20. Rhf1 Bb7 21. Qg4 Rhg8 22. fxe6 fxe6 23. Bh7 Rge8 24. Qxg7 Rd7 25. Qg6 Ree7 26. Bg8 Rg7 27. Qe8+ Rd8 28. Qxe6+ Kc7 29. Qxb6+ Bxb6 30. Be6 Rxg2 31. Bf7 d4 32. e6 Bxf3 33. Rxf3 Bc5 34. Rh3 Kd6 35. a3 bxa3 36. b3 Ke7 37. Rg3 Rxg3 38. hxg3 Rd5 39. c3 Rg5 40. b4 Bb6 41. cxd4 Rd5 42. Ka2 Rxd4 43. Rxd4 Bxd4 44. Kxa3 Be5 45. g4 Bd6 46. Ka4 Kf6 47. Bg8 Kg5 48. Bh7 Kxg4 49. Bd3 Kg5 50. Bxa6 Kf6 51. Bc4 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.13"]
[Round "5"]
[White "Letelier Martner, Rene"]
[Black "Emma, Jaime"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2350"]
[BlackElo "2420"]
[PlyCount "83"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 Bg7 8. e4 O-O 9. Be2 Re8 10. O-O Nbd7 11. h3 a6 12. a4 Qc7 13. Qc2 b6 14. Nc4 Ne5 15. Na3 c4 16. Be3 Nfd7 17. f4 Nd3 18. Bxd3 cxd3 19. Qxd3 Nc5 20. Qc4 Qe7 21. Rfe1 Qh4 22. Bf2 Qxf4 23. e5 Qg5 24. h4 Qd8 25. exd6 Rxe1+ 26. Rxe1 Bf5 27. g4 Bd7 28. a5 Nb7 29. axb6 Nxd6 30. Qf4 Bc8 31. Na4 Bb7 32. Nc5 Bxb2 33. Nxb7 Nxb7 34. Nc4 Bc3 35. Rd1 Rc8 36. d6 Qf6 37. Qe4 Nd8 38. d7 Rb8 39. Bg3 Rxb6 40. Nxb6 Qxb6+ 41. Bf2 Qa5 42. g5 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.13"]
[Round "5"]
[White "Rubinetti, Jorge Alberto"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[ECO "B16"]
[WhiteElo "2380"]
[BlackElo "2370"]
[PlyCount "126"]
[EventDate "1976.03.08"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Ne2 Bf5 7. Ng3 Bg6 8. h4 h5 9. c3 e6 10. Be2 c5 11. d5 Qxd5 12. Qxd5 exd5 13. Bf3 Na6 14. Bxd5 O-O-O 15. Bc4 Nc7 16. a4 Bd6 17. O-O Rhe8 18. f4 f5 19. Kh2 Be7 20. Kh3 Bf6 21. a5 a6 22. Be2 Nb5 23. Rf3 Nd6 24. Be3 Ne4 25. Nf1 Rd7 26. g3 Bd8 27. Ra4 f6 28. Bc4 Rd1 29. Kg2 Re7 30. Ra2 Be8 31. Bb3 Re1 32. Bd5 Bf7 33. Bxf7 Rxf7 34. b3 Rd7 35. Rc2 Bxa5 36. b4 cxb4 37. cxb4+ Bc7 38. Bb6 Kb8 39. Bxc7+ Rxc7 40. Rxc7 Kxc7 41. Ne3 Re2+ 42. Kg1 Nd2 43. Nd5+ Kd6 44. Rd3 Nf3+ 45. Kf1 Rd2 46. Rxf3 Kxd5 47. Rb3 Kc4 48. Rb1 Kc3 49. Rc1+ Rc2 50. Rd1 Kxb4 51. Rb1+ Kc3 52. Rxb7 a5 53. Rc7+ Kd3 54. Ra7 Ra2 55. Rh7 a4 56. Rxh5 a3 57. Rxf5 Rb2 58. Rxf6 a2 59. Ra6 Ke4 60. h5 Rb1+ 61. Kg2 a1=Q 62. Rxa1 Rxa1 63. h6 Ra6 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.13"]
[Round "5"]
[White "Schweber, Samuel"]
[Black "Grinberg, Ricardo"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2455"]
[BlackElo "2425"]
[PlyCount "83"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nge2 d5 6. a3 Be7 7. Nf4 b6 8. cxd5 exd5 9. Be2 c6 10. O-O Qd6 11. Bd2 Ba6 12. b4 Bxe2 13. Qxe2 Nbd7 14. b5 Ne4 15. bxc6 Nxc3 16. Bxc3 Qxc6 17. Bb4 Rfe8 18. Rfc1 Qb7 19. Bxe7 Rxe7 20. Qb5 Nf6 21. Rc6 Rd8 22. Rac1 h6 23. h3 Qd7 24. Qb4 Qb7 25. a4 Rdd7 26. Qb5 Rd8 27. R1c2 Red7 28. Nd3 Ne8 29. Ne5 Rd6 30. a5 f6 31. a6 Qa8 32. Nd3 Rxc6 33. Rxc6 Qb8 34. Nb4 Nc7 35. Qd3 Rd7 36. Qc2 Kf7 37. h4 Qd8 38. h5 Qe7 39. Qf5 Ke8 40. Nxd5 Rxd5 41. Qc8+ Qd8 42. Rxc7 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.14"]
[Round "6"]
[White "Emma, Jaime"]
[Black "Schweber, Samuel"]
[Result "1-0"]
[ECO "E59"]
[WhiteElo "2420"]
[BlackElo "2455"]
[PlyCount "93"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O Nc6 8. a3 dxc4 9. Bxc4 Bxc3 10. bxc3 Qc7 11. Bb5 b6 12. Re1 Bb7 13. e4 Nxe4 14. Rxe4 Nxd4 15. Rh4 Bxf3 16. gxf3 Qd8 17. Rxd4 cxd4 18. cxd4 Qh4 19. f4 Rac8 20. Be3 Rfd8 21. Be2 Rc3 22. a4 Qe7 23. Bf3 Ra3 24. Rxa3 Qxa3 25. Qc2 Qd6 26. Be4 f5 27. Bf3 Qd7 28. Qb3 h6 29. h4 Kh7 30. Kf1 g6 31. Qb5 Qxb5+ 32. axb5 Kg7 33. Ke2 h5 34. Kd3 Kf7 35. Bc6 Rc8 36. Kc4 Ke7 37. Bc1 Kd6 38. Ba3+ Kc7 39. Be7 a6 40. Bf6 axb5+ 41. Kxb5 Kd6 42. Be5+ Ke7 43. Kxb6 Rf8 44. Kc7 Kf7 45. Kd7 Re8 46. d5 Re7+ 47. Kd8 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.14"]
[Round "6"]
[White "Grinberg, Ricardo"]
[Black "Brond, Victor"]
[Result "1/2-1/2"]
[ECO "B17"]
[WhiteElo "2425"]
[BlackElo "2345"]
[PlyCount "47"]
[EventDate "1976.03.08"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bd3 h6 9. N5f3 c5 10. dxc5 Bxc5 11. Ne5 Nbd7 12. Ngf3 Nxe5 13. Nxe5 O-O 14. O-O b6 15. Bf4 Bb7 16. Rad1 Qe7 17. Bg3 Rfd8 18. c3 Nd5 19. h4 Rac8 20. Rfe1 Ba8 21. Ba6 Bb7 22. Bxb7 Qxb7 23. Qf3 b5 24. a4 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.14"]
[Round "6"]
[White "Rocha, Antonio Cavilhas"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2315"]
[BlackElo "2380"]
[PlyCount "145"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. Bg5 c5 3. d5 g6 4. Bxf6 exf6 5. c3 f5 6. e3 d6 7. Nf3 Bg7 8. Be2 Nd7 9. O-O O-O 10. Qb3 a6 11. a4 b6 12. Na3 Nf6 13. Rfd1 f4 14. exf4 Re8 15. Bf1 Bg4 16. Rd3 b5 17. axb5 axb5 18. Qxb5 Rb8 19. Qa6 Ra8 20. Qb5 Rb8 21. Qa6 Ra8 22. Qb5 Bd7 23. Qb3 Re4 24. c4 Nh5 25. g3 Rb8 26. Qd1 Rxb2 27. Rb1 Rb4 28. Rdb3 Ba4 29. Rxb4 Bxd1 30. Rb8 Qxb8 31. Rxb8+ Bf8 32. Kg2 Rxf4 33. gxf4 Nxf4+ 34. Kg1 Bxf3 35. Nb5 Kg7 36. Rd8 Be7 37. Rd7 Kf8 38. Nxd6 Bg4 39. Rxe7 Kxe7 40. Nb7 Ne2+ 41. Kg2 Nf4+ 42. Kg3 Be2 43. Bxe2 Nxe2+ 44. Kf3 Nd4+ 45. Ke3 Nb3 46. Kd3 Kd7 47. Kc3 Kc7 48. Kxb3 Kxb7 49. Ka4 Kb6 50. Kb3 Kc7 51. Kc3 Kd7 52. Kd3 f6 53. Ke3 Ke7 54. Kf4 Kd7 55. Kg4 h6 56. Kf4 Ke7 57. Ke4 Kd7 58. Kd3 Kd6 59. Kc3 Kc7 60. Kb3 Kb7 61. Ka4 Kb6 62. f3 Kc7 63. Ka5 Kd7 64. Kb6 Kd6 65. Kb5 g5 66. Ka4 Ke5 67. Kb3 f5 68. Kc3 g4 69. Kd3 h5 70. Ke2 h4 71. Kf2 Kf6 72. Ke3 Ke5 73. Kf2 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.14"]
[Round "6"]
[White "Rubinetti, Jorge Alberto"]
[Black "Cuasnicu, Oscar"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2380"]
[BlackElo "2400"]
[PlyCount "22"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 e6 5. Nbd2 Ne4 6. Bd3 f5 7. Ne5 Qf6 8. O-O Bd6 9. f4 Nd7 10. Ndf3 O-O 11. b3 Qe7 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.14"]
[Round "6"]
[White "Sanguineti, Raul"]
[Black "Hase, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2480"]
[BlackElo "2430"]
[PlyCount "29"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 Be7 6. e3 Ne4 7. Nxe4 Bxe4 8. Bxe7 Qxe7 9. Be2 O-O 10. O-O d6 11. Nd2 Bb7 12. Bf3 c5 13. Bxb7 Qxb7 14. Qf3 Nc6 15. Ne4 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.14"]
[Round "6"]
[White "Seidler, Aldo Emilio"]
[Black "Letelier Martner, Rene"]
[Result "1-0"]
[ECO "C44"]
[BlackElo "2350"]
[PlyCount "95"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 Nxe4 5. dxe5 d5 6. Bb5 Bc5 7. O-O O-O 8. b4 Bb6 9. a4 a5 10. Ba3 Bg4 11. Bxc6 bxc6 12. bxa5 Bc5 13. Bxc5 Nxc5 14. Nbd2 Qd7 15. h3 Bxf3 16. Nxf3 Rxa5 17. Qc2 Rfa8 18. Rfb1 h6 19. Rb4 Ne4 20. Rab1 c5 21. Rb8+ Kh7 22. Rxa8 Rxa8 23. Ra1 Kg8 24. c4 c6 25. a5 Qc7 26. a6 Qb6 27. Qa2 Nc3 28. Qa5 Qb2 29. Qa3 Nd1 30. Qxb2 Nxb2 31. cxd5 cxd5 32. a7 Nd3 33. Kf1 Kf8 34. Ra3 Nb4 35. Ra5 Ke7 36. Ke2 Kd7 37. Rxc5 Rxa7 38. Rb5 Ra2+ 39. Ke3 Ra3+ 40. Kd4 Rd3+ 41. Kc5 Na6+ 42. Kb6 Nc7 43. e6+ Kd6 44. exf7 Ne6 45. Ka5 Ke7 46. Rb7+ Kf6 47. Rb6 Rxf3 48. f8=Q+ 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.14"]
[Round "6"]
[White "Trois, Francisco"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "2310"]
[BlackElo "2370"]
[PlyCount "47"]
[EventDate "1976.03.08"]

1. c4 g6 2. Nc3 c5 3. Nf3 Bg7 4. e3 Nf6 5. d4 O-O 6. Be2 Na6 7. O-O d6 8. b3 Nc7 9. Bb2 b6 10. Qc2 Bb7 11. Rad1 Qe8 12. e4 Ne6 13. d5 Nf4 14. e5 N6h5 15. Rfe1 Qd7 16. Bf1 Qg4 17. Ne4 Rae8 18. Ng3 Bc8 19. Re3 Nxg3 20. hxg3 Nh5 21. Bd3 Qd7 22. e6 Qd8 23. Ng5 f5 24. g4 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.14"]
[Round "6"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Garcia, Raimundo"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2370"]
[BlackElo "2425"]
[PlyCount "27"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. b3 f6 6. Bb2 Nh6 7. h3 Bd6 8. d3 Qe7 9. Nbd2 Bd7 10. Nc4 Nf7 11. Qe2 O-O 12. O-O Rae8 13. Rfe1 c5 14. Nh2 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.15"]
[Round "7"]
[White "Brond, Victor"]
[Black "Emma, Jaime"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2345"]
[BlackElo "2420"]
[PlyCount "81"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 e6 6. Nc3 Nxd5 7. Nxd5 exd5 8. Qxd5 Nc6 9. e4 Bxa6 10. Bxa6 Qa5+ 11. Bd2 Qxa6 12. Ne2 Be7 13. Bc3 O-O 14. Qd2 Rfe8 15. O-O Bf6 16. Ng3 d6 17. Rfd1 Qc4 18. Qd5 Qxd5 19. Rxd5 g6 20. Nh5 Be7 21. Nf6+ Bxf6 22. Bxf6 Re6 23. Bc3 Kf8 24. f3 h5 25. Rad1 Ke7 26. a3 Rb8 27. Kf2 Rb3 28. R1d3 Rb6 29. h3 h4 30. Ke3 f5 31. Kd2 fxe4 32. fxe4 Rb8 33. Ke3 Ra8 34. Rg5 Ra4 35. Rg4 g5 36. Rd5 Ne5 37. Bxe5 Rxe5 38. Rxe5+ dxe5 39. Rxg5 Kf6 40. Rf5+ Ke6 41. Rf2 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.15"]
[Round "7"]
[White "Bronstein, Luis Marcos"]
[Black "Sanguineti, Raul"]
[Result "0-1"]
[ECO "C66"]
[WhiteElo "2380"]
[BlackElo "2480"]
[PlyCount "82"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. b3 exd4 8. Nxd4 Nxd4 9. Qxd4 Bxb5 10. Nxb5 Nd7 11. Qc4 c6 12. Nd4 O-O 13. Be3 d5 14. exd5 Nb6 15. Qd3 Nxd5 16. Rad1 Bf6 17. c4 Nxe3 18. fxe3 g6 19. Qe4 Qe7 20. Qxe7 Bxe7 21. Nc2 Rfd8 22. Kf2 Kg7 23. Ke2 h5 24. Rxd8 Rxd8 25. b4 Bf6 26. Rd1 Rxd1 27. Kxd1 Be5 28. h3 f5 29. Ke2 Kf6 30. Ne1 b5 31. cxb5 cxb5 32. Kd3 Bd6 33. a3 Be5 34. Nf3 Bb2 35. Nd4 a6 36. Nc6 Bxa3 37. Kd4 Ke6 38. Kc5 Bc1 39. Kb6 Kd6 40. Na5 Bd2 41. Nb7+ Kd5 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.15"]
[Round "7"]
[White "Cuasnicu, Oscar"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2400"]
[BlackElo "2370"]
[PlyCount "33"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Qb6 7. Nb3 a6 8. Bg2 Be7 9. O-O d6 10. a4 Ne5 11. a5 Qc7 12. Na4 Nc4 13. Qd4 e5 14. Qc3 Bd8 15. Nac5 dxc5 16. Qxc4 Be7 17. Be3 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.15"]
[Round "7"]
[White "Garcia, Raimundo"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1/2-1/2"]
[ECO "D26"]
[WhiteElo "2425"]
[BlackElo "2315"]
[PlyCount "49"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e3 e6 6. d4 Nc6 7. Bc4 cxd4 8. exd4 Be7 9. O-O Nf6 10. Re1 O-O 11. a3 a6 12. Ba2 b5 13. d5 exd5 14. Nxd5 Nxd5 15. Qxd5 Bb7 16. Qh5 g6 17. Qg4 Bf6 18. Bh6 Bg7 19. Qf4 Nd4 20. Ne5 Bxh6 21. Qxh6 Bd5 22. Bxd5 Qxd5 23. Ng4 Qd6 24. Qh4 Nf5 25. Qf6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.15"]
[Round "7"]
[White "Garcia Palermo, Carlos"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "2370"]
[BlackElo "2380"]
[PlyCount "47"]
[EventDate "1976.03.08"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 e6 7. e3 Be7 8. Bd3 O-O 9. Ne5 Bd7 10. O-O Qb6 11. a3 Rfc8 12. Na4 Qd8 13. b4 Nxe5 14. Bxe5 Bxa4 15. Qxa4 Rc3 16. Bxf6 Bxf6 17. Rfd1 Qc7 18. g3 a6 19. Kg2 Rc8 20. Rd2 g6 21. Raa2 Kg7 22. Rdc2 Qd8 23. Rxc3 Rxc3 24. Qd1 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.15"]
[Round "7"]
[White "Hase, Juan Carlos"]
[Black "Grinberg, Ricardo"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2430"]
[BlackElo "2425"]
[PlyCount "69"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Be7 7. f4 h6 8. Bxf6 Bxf6 9. Ndb5 Be7 10. Qd4 O-O 11. O-O-O e5 12. fxe5 Nc6 13. Qf2 Nxe5 14. Nd5 Bg5+ 15. Kb1 Bg4 16. Be2 Bxe2 17. Qxe2 a6 18. Nd4 Rc8 19. Rhf1 Re8 20. Nf5 Nc4 21. Rd4 b5 22. h4 Bxh4 23. Qh5 Bg5 24. Nxg7 Rxe4 25. Qxf7+ Kh8 26. Ne6 Qg8 27. Nxg5 Rxd4 28. Qf6+ Qg7 29. Nf7+ Kh7 30. Qf5+ Qg6 31. Qxc8 Qg7 32. Qf5+ Qg6 33. Qxg6+ Kxg6 34. Ne7+ Kh7 35. Kc1 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.15"]
[Round "7"]
[White "Letelier Martner, Rene"]
[Black "Trois, Francisco"]
[Result "0-1"]
[ECO "E41"]
[WhiteElo "2350"]
[BlackElo "2310"]
[PlyCount "110"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 Nc6 6. Bd3 Bxc3+ 7. bxc3 d6 8. O-O e5 9. d5 Ne7 10. Qc2 Ng6 11. Nd2 O-O 12. f3 Bd7 13. a4 Qc7 14. g4 Rae8 15. Ne4 Nxe4 16. Bxe4 Kh8 17. Bd2 Ne7 18. a5 f5 19. gxf5 Bxf5 20. Kh1 Rf7 21. Be1 Ref8 22. Bxf5 Rxf5 23. Qe4 Ng8 24. Ra2 Qf7 25. Raf2 Qg6 26. Qc2 Qh5 27. Qe2 h6 28. Bd2 Qh3 29. f4 Nf6 30. Rf3 Qh4 31. e4 Rh5 32. Be1 Qg4 33. Rg1 Qd7 34. f5 Rf7 35. Rfg3 Rh4 36. Re3 Rf4 37. Bg3 Rg4 38. h3 Rg5 39. Qc2 g6 40. fxg6 Qxh3+ 41. Qh2 Qxh2+ 42. Kxh2 Ng4+ 43. Kh3 Rxg6 44. Bh4 h5 45. Re2 Rgg7 46. Be1 Kh7 47. Kh4 Rf3 48. Bd2 Kg6 49. Be1 Rgf7 50. Bd2 Rd3 51. Rg3 Rff3 52. Rxf3 Rxf3 53. Rg2 Rf2 54. Kh3 Rf1 55. Kg3 Ra1 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.15"]
[Round "7"]
[White "Schweber, Samuel"]
[Black "Seidler, Aldo Emilio"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2455"]
[PlyCount "183"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. a4 a5 8. h3 exd4 9. Nxd4 Nc5 10. Qf3 c6 11. Ba2 Qb6 12. Rd1 Kh8 13. Nb3 Nxb3 14. Bxb3 Be6 15. Be3 Qc7 16. Ba2 Rad8 17. Bd4 Ne8 18. Rd3 Bxa2 19. Rxa2 Bf6 20. Qe3 Bxd4 21. Qxd4 Nf6 22. Ra1 Rfe8 23. Rad1 d5 24. exd5 Nxd5 25. Ne4 Rd7 26. Ng3 Rde7 27. Kf1 Re5 28. c4 Qe7 29. Kg1 c5 30. Qg4 Nf6 31. Qf3 g6 32. Rd6 Kg7 33. Qc3 Re1+ 34. Nf1 Rxd1 35. Rxd1 b6 36. Ne3 Qe5 37. Qxe5 Rxe5 38. Rd8 Re4 39. Kf1 Ng8 40. Rb8 Re6 41. Nd5 Nf6 42. Nxb6 Ne4 43. Ke2 h5 44. Nd5 h4 45. Ra8 Nc3+ 46. Kd2 Nxa4 47. b3 Nb6 48. Nxb6 Rxb6 49. Kc3 Rf6 50. f3 Re6 51. Rxa5 Re2 52. Rxc5 Rxg2 53. b4 Rg3 54. b5 Rxh3 55. b6 Rxf3+ 56. Kc2 h3 57. Rb5 Rf1 58. Rb3 h2 59. Rh3 Rf6 60. c5 Rf5 61. Rxh2 Rxc5+ 62. Kb1 Rc8 63. Rb2 Kf6 64. b7 Rb8 65. Kc2 Ke6 66. Kd3 Kd5 67. Rb6 Kc5 68. Rf6 Rxb7 69. Ke4 Ra7 70. Ke5 Re7+ 71. Kf4 Kd5 72. Kg4 Rb7 73. Kg5 Ke4 74. Rf4+ Ke3 75. Rf1 Ra7 76. Kh4 Ke4 77. Kg4 Rc7 78. Kh4 Rd7 79. Kg4 Rb7 80. Kh4 Ke5 81. Kg5 Re7 82. Rc1 Kd6 83. Rd1+ Ke6 84. Rd2 Re8 85. Ra2 Ke7 86. Ra7+ Kf8 87. Kh6 Re5 88. Ra8+ Ke7 89. Kg7 Rf5 90. Ra1 g5 91. Kh6 f6 92. Ra7+ 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.16"]
[Round "8"]
[White "Cuasnicu, Oscar"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2400"]
[BlackElo "2370"]
[PlyCount "81"]
[EventDate "1976.03.08"]

1. e4 e6 2. d3 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. Be2 Be7 6. O-O O-O 7. c3 a5 8. a4 b6 9. Re1 Ba6 10. Qc2 dxe4 11. dxe4 Bxe2 12. Rxe2 Nd7 13. Nc4 Nc5 14. Bf4 Qc8 15. Nd4 Qb7 16. Nb5 Rac8 17. Rd1 f6 18. Red2 Nb8 19. f3 e5 20. Be3 Kh8 21. Bf2 Rce8 22. Ne3 Ne6 23. Nd5 Bd8 24. Qb3 Qc6 25. Kh1 Na6 26. Qa2 Qa8 27. Na3 Nb8 28. Nc4 Nc6 29. Qb3 Nb8 30. h3 Na6 31. Qc2 Qc6 32. Na3 Nb8 33. b4 axb4 34. cxb4 Qxc2 35. Rxc2 Na6 36. Nb5 Kg8 37. Rc4 Kf7 38. a5 bxa5 39. bxa5 Be7 40. Rc6 Nb4 41. Rxe6 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.16"]
[Round "8"]
[White "Emma, Jaime"]
[Black "Hase, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "E41"]
[WhiteElo "2420"]
[BlackElo "2430"]
[PlyCount "24"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 8. Qe2 e5 9. dxc5 dxc5 10. Ng5 Qe7 11. Ne4 Nd7 12. Ng3 Nb6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.16"]
[Round "8"]
[White "Grinberg, Ricardo"]
[Black "Bronstein, Luis Marcos"]
[Result "1-0"]
[ECO "C99"]
[WhiteElo "2425"]
[BlackElo "2380"]
[PlyCount "43"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Bb7 14. Nf1 Rac8 15. Re2 Nh5 16. g4 Nf4 17. Bxf4 exf4 18. Qd2 f5 19. gxf5 Rxf5 20. exf5 Bxf3 21. Ree1 Qxc2 22. Qxf4 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.16"]
[Round "8"]
[White "Rubinetti, Jorge Alberto"]
[Black "Letelier Martner, Rene"]
[Result "1-0"]
[ECO "E02"]
[WhiteElo "2380"]
[BlackElo "2350"]
[PlyCount "79"]
[EventDate "1976.03.08"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Nb6 9. Qd3 Be4 10. Qd1 c5 11. Nc3 Bc6 12. Be3 Nc4 13. Bc1 Rc8 14. e4 Be7 15. Re1 cxd4 16. Nxd4 Bc5 17. Nxc6 Qxd1 18. Rxd1 bxc6 19. b3 Nb6 20. h3 e5 21. Ne2 Ke7 22. Bb2 Nfd7 23. Rac1 Bd6 24. h4 f6 25. Bh3 Rc7 26. Rc2 Rd8 27. Kg2 Nb8 28. Rcd2 c5 29. Ba3 Na6 30. Nc3 Nb4 31. Nb5 Rc6 32. Nxa7 Rc7 33. Nb5 Rc6 34. Rc1 Na6 35. Kf3 Na8 36. Bf1 N8c7 37. Rcd1 Nb4 38. Na7 Rb6 39. Bxb4 cxb4 40. Rc1 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.16"]
[Round "8"]
[White "Sanguineti, Raul"]
[Black "Garcia, Raimundo"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2480"]
[BlackElo "2425"]
[PlyCount "95"]
[EventDate "1976.03.08"]

1. c4 c5 2. b3 b6 3. Bb2 Bb7 4. Nf3 Nf6 5. e3 e6 6. d4 cxd4 7. exd4 Bb4+ 8. Nbd2 Bxf3 9. Qxf3 Bxd2+ 10. Kxd2 d5 11. cxd5 Nxd5 12. Ba3 Qg5+ 13. Ke1 Qf4 14. Qxf4 Nxf4 15. Rc1 Kd8 16. Bd6 Nd5 17. Bc4 Kd7 18. Be5 Nc6 19. Bb5 Ndb4 20. Bxg7 Rhc8 21. a3 a6 22. Bxc6+ Nxc6 23. Ke2 Rg8 24. Be5 f6 25. Bxf6 Rxg2 26. Rc3 Rf8 27. Rf3 Rg4 28. Rd1 Re4+ 29. Kd3 Rxd4+ 30. Bxd4 Rxf3+ 31. Be3 Rh3 32. Ke4+ Ke7 33. Bxb6 Rxb3 34. Bc5+ Kf6 35. Rd6 Ne7 36. Rxa6 Nf5 37. a4 Rh3 38. a5 Rh4+ 39. Kf3 Rxh2 40. Ra8 Rh3+ 41. Kg2 Rh5 42. Rf8+ Kg7 43. Rc8 Nd6 44. Bxd6 Rxa5 45. Rc7+ Kg6 46. Re7 Kf5 47. Rxh7 e5 48. Rh5+ 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.16"]
[Round "8"]
[White "Seidler, Aldo Emilio"]
[Black "Brond, Victor"]
[Result "0-1"]
[ECO "D94"]
[BlackElo "2345"]
[PlyCount "102"]
[EventDate "1976.03.08"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Bg7 7. Nf3 O-O 8. Be2 Nxd5 9. O-O Nc6 10. Bg5 Be6 11. Qd2 Qa5 12. Rfe1 Rfd8 13. Rad1 Nxd4 14. Nxd4 Bxd4 15. Ne4 Qxd2 16. Rxd2 Bb6 17. Red1 f6 18. Bc4 Nf4 19. Rxd8+ Rxd8 20. Rxd8+ Bxd8 21. Bxe6+ Nxe6 22. Be3 a6 23. Kf1 Bc7 24. g3 f5 25. Nc5 Nxc5 26. Bxc5 e5 27. Ke2 Kf7 28. Kd3 Ke6 29. f3 Kd5 30. Be3 b5 31. b3 Bd6 32. Bd2 h5 33. Bg5 e4+ 34. fxe4+ fxe4+ 35. Ke3 Bc5+ 36. Ke2 Ke5 37. h3 Kf5 38. Bf4 Bd4 39. Bd2 g5 40. Be1 g4 41. h4 Ke6 42. Kd2 Kd5 43. Ke2 Bb6 44. a4 Bc5 45. a5 b4 46. Bd2 Bd6 47. Be1 Kd4 48. Bd2 Bxg3 49. Bxb4 Bxh4 50. Bd6 Bg5 51. b4 Kc4 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.16"]
[Round "8"]
[White "Trois, Francisco"]
[Black "Schweber, Samuel"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2310"]
[BlackElo "2455"]
[PlyCount "33"]
[EventDate "1976.03.08"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 d6 7. a3 Bg4 8. b3 a5 9. d3 Nd7 10. Be2 Qe7 11. Bb2 O-O 12. h3 Bxf3 13. Bxf3 f5 14. O-O Nf6 15. Be2 e4 16. Rad1 b6 17. Qc2 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.16"]
[Round "8"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1/2-1/2"]
[ECO "C69"]
[WhiteElo "2370"]
[BlackElo "2315"]
[PlyCount "38"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 6. d4 Bg4 7. dxe5 Qxd1 8. Rxd1 Bxf3 9. gxf3 fxe5 10. f4 Bd6 11. fxe5 Bxe5 12. f4 Bd6 13. Nc3 O-O-O 14. Be3 Nf6 15. e5 Ng4 16. Bf2 Be7 17. Rxd8+ Rxd8 18. Rd1 Rxd1+ 19. Nxd1 Kd7 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.18"]
[Round "9"]
[White "Brond, Victor"]
[Black "Trois, Francisco"]
[Result "1/2-1/2"]
[ECO "E31"]
[WhiteElo "2345"]
[BlackElo "2310"]
[PlyCount "76"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 h6 6. Bh4 d6 7. dxe6 Bxe6 8. e3 Bxc3+ 9. bxc3 g5 10. Bg3 Ne4 11. Qc2 Nxg3 12. hxg3 Nc6 13. Rb1 Qe7 14. Nf3 O-O-O 15. Bd3 h5 16. Bf5 Qf6 17. Bxe6+ fxe6 18. Nd2 Kb8 19. Rb3 d5 20. cxd5 exd5 21. Qb2 Qe7 22. Nf3 Na5 23. Rb5 Nc4 24. Qe2 h4 25. gxh4 gxh4 26. Qd3 a6 27. Rb3 Ka8 28. Ke2 Qf6 29. Rhb1 h3 30. Rxb7 Rd6 31. gxh3 Rf8 32. e4 Qg6 33. e5 Qxd3+ 34. Kxd3 Rh6 35. Ng5 Nxe5+ 36. Ke2 Rg6 37. f4 Nc4 38. h4 Rh6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.18"]
[Round "9"]
[White "Bronstein, Luis Marcos"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2380"]
[BlackElo "2420"]
[PlyCount "73"]
[EventDate "1976.03.08"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 c6 5. c3 Nf6 6. Nbd2 O-O 7. O-O Nfd7 8. Bb3 a5 9. a4 Nb6 10. Nc4 Nxc4 11. Bxc4 Na6 12. Bg5 Nc7 13. Qd2 Bg4 14. Nh4 d5 15. exd5 Nxd5 16. h3 Be6 17. Rae1 Qd7 18. Bh6 Rfe8 19. Bxg7 Kxg7 20. Nf3 f6 21. Re2 Bf7 22. Rfe1 Qd6 23. Bxd5 cxd5 24. Nh2 g5 25. Re3 e6 26. h4 h6 27. Rg3 Bg6 28. hxg5 hxg5 29. Ng4 Rg8 30. Nxf6 Kxf6 31. Qxg5+ Kf7 32. Ree3 Raf8 33. Qh6 Bf5 34. Qh5+ Kf6 35. Qh4+ Kf7 36. Qh5+ Kf6 37. Qh4+ 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.18"]
[Round "9"]
[White "Garcia, Raimundo"]
[Black "Grinberg, Ricardo"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2425"]
[BlackElo "2425"]
[PlyCount "59"]
[EventDate "1976.03.08"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 Bb4 5. Bg5 h6 6. Bxf6 Bxc3+ 7. bxc3 Qxf6 8. Nd2 O-O 9. g3 b6 10. Bg2 Bb7 11. O-O Qe7 12. Rb1 Nd8 13. Bd5 c6 14. Bg2 d5 15. cxd5 cxd5 16. Rb5 d4 17. Bxb7 Nxb7 18. cxd4 exd4 19. Nf3 Rad8 20. Re5 Qb4 21. Qb1 Qxb1 22. Rxb1 Nc5 23. Re7 Ne6 24. Rb4 Rd6 25. Rxa7 Rc8 26. Ne5 Rc1+ 27. Kg2 Rc2 28. Ra8+ Kh7 29. Nxf7 Rd7 30. Rh8+ 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.18"]
[Round "9"]
[White "Garcia Palermo, Carlos"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2370"]
[BlackElo "2370"]
[PlyCount "43"]
[EventDate "1976.03.08"]

1. d4 c5 2. d5 Nf6 3. c4 b5 4. a4 bxc4 5. Nc3 d6 6. e4 Ba6 7. f4 Nbd7 8. Nf3 g6 9. e5 dxe5 10. fxe5 Ng4 11. Qe2 Bg7 12. Bf4 Qb8 13. d6 e6 14. h3 Nh6 15. g4 Qb4 16. Bg2 Rb8 17. Qe3 Bb7 18. O-O O-O 19. Bxh6 Bxh6 20. Qxh6 Bxf3 21. Rxf3 Nxe5 22. Rf2 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.18"]
[Round "9"]
[White "Hase, Juan Carlos"]
[Black "Seidler, Aldo Emilio"]
[Result "1/2-1/2"]
[ECO "B84"]
[WhiteElo "2430"]
[PlyCount "54"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Nbd7 8. f4 b5 9. Bf3 Bb7 10. e5 Bxf3 11. Nxf3 Qb6+ 12. Kh1 Ng4 13. Qe2 d5 14. f5 Bc5 15. fxe6 fxe6 16. h3 Nf2+ 17. Kh2 O-O 18. Bg5 Qc7 19. Bh4 Bb4 20. Nxd5 exd5 21. Bxf2 Nxe5 22. Bg3 Nxf3+ 23. Rxf3 Qc6 24. Rd1 Rad8 25. Rxf8+ Bxf8 26. Rf1 h6 27. Rf5 Rc8 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.18"]
[Round "9"]
[White "Letelier Martner, Rene"]
[Black "Cuasnicu, Oscar"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2350"]
[BlackElo "2400"]
[PlyCount "82"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 d6 6. O-O g6 7. b3 Bg7 8. Bb2 Nf6 9. c4 O-O 10. Nd2 b6 11. Qe2 Bb7 12. Rad1 Nbd7 13. Bb1 Qc7 14. Rfe1 Nc5 15. Qe3 Rfe8 16. h3 Rad8 17. Bc2 e5 18. Ne2 Ne6 19. Nb1 b5 20. Nd2 b4 21. Nf1 a5 22. Nh2 Nc5 23. Ng3 h5 24. Nf3 Nh7 25. Bc1 Qe7 26. Qe2 Bf6 27. a3 Bc6 28. axb4 axb4 29. Qd2 Qb7 30. h4 Be7 31. Bb2 Rb8 32. Re2 Qc8 33. Nf1 Nf6 34. Ng5 Ne6 35. Nxe6 Qxe6 36. f3 Nd7 37. Ne3 Qf6 38. Qe1 Nc5 39. Nd5 Bxd5 40. Rxd5 Ne6 41. Rb5 Rxb5 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.18"]
[Round "9"]
[White "Rocha, Antonio Cavilhas"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "B46"]
[WhiteElo "2315"]
[BlackElo "2480"]
[PlyCount "34"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be3 Nge7 7. a3 Nxd4 8. Qxd4 b5 9. Be2 Nc6 10. Qd2 Be7 11. O-O Qc7 12. f4 O-O 13. Rae1 f6 14. Nd5 exd5 15. exd5 Re8 16. dxc6 dxc6 17. Bf3 Be6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.18"]
[Round "9"]
[White "Schweber, Samuel"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[ECO "C16"]
[WhiteElo "2455"]
[BlackElo "2380"]
[PlyCount "83"]
[EventDate "1976.03.08"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 5. a3 Bxc3+ 6. bxc3 b6 7. Qg4 f5 8. Qg3 Bb7 9. h4 Nc6 10. Nh3 O-O-O 11. Bd3 Kb8 12. Nf4 Qf7 13. a4 Nge7 14. h5 Na5 15. Ba3 Nc4 16. Bxe7 Qxe7 17. Qh4 Qf7 18. Bxc4 dxc4 19. a5 b5 20. a6 Bc8 21. O-O c6 22. f3 Rhg8 23. Qg5 Qc7 24. Rfb1 Rde8 25. Kh2 Qe7 26. Nh3 Qxg5 27. Nxg5 Re7 28. Kg3 Kc7 29. Ra2 Kb6 30. Rba1 h6 31. Nh3 g5 32. hxg6 Rxg6+ 33. Kf2 h5 34. Nf4 Rh6 35. Ra3 h4 36. R3a2 Rg7 37. Ra3 Re7 38. R3a2 Rd7 39. Ke3 Rg7 40. Kf2 Rgh7 41. Ra3 Rd7 42. Ke3 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.19"]
[Round "10"]
[White "Cuasnicu, Oscar"]
[Black "Schweber, Samuel"]
[Result "1/2-1/2"]
[ECO "C62"]
[WhiteElo "2400"]
[BlackElo "2455"]
[PlyCount "20"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nxd4 6. Nxd4 exd4 7. Qxd4 Nf6 8. O-O Be7 9. Bxd7+ Qxd7 10. Bf4 O-O 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.19"]
[Round "10"]
[White "Emma, Jaime"]
[Black "Garcia, Raimundo"]
[Result "0-1"]
[ECO "E76"]
[WhiteElo "2420"]
[BlackElo "2425"]
[PlyCount "82"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. f4 g6 8. Nf3 Bg7 9. e4 Bxf1 10. Rxf1 O-O 11. Kf2 Na6 12. Kg1 Qb6 13. Kh1 Nb4 14. a3 Qa6 15. Be3 Nd3 16. Qd2 Rfb8 17. Rfb1 Nxb2 18. Rxb2 Nxe4 19. Rxb8+ Rxb8 20. Nxe4 Bxa1 21. Ng3 Rb1+ 22. Bg1 Qxa3 23. f5 Qc1 24. Qa2 Bf6 25. fxg6 hxg6 26. Qa8+ Kg7 27. Qc8 Qd1 28. Qg4 Qxd5 29. h3 Rb4 30. Qc8 Qb7 31. Qe8 Rf4 32. Nd2 Rb4 33. Be3 Bd4 34. Bg5 Rb1+ 35. Ngf1 Qa6 36. Kh2 Rxf1 37. Nxf1 Qxf1 38. h4 Be5+ 39. g3 Qf2+ 40. Kh1 Qf3+ 41. Kg1 Bd4+ 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.19"]
[Round "10"]
[White "Garcia Palermo, Carlos"]
[Black "Letelier Martner, Rene"]
[Result "1-0"]
[ECO "A72"]
[WhiteElo "2370"]
[BlackElo "2350"]
[PlyCount "103"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. Be2 Bg7 8. Nf3 O-O 9. Bf4 Re8 10. Nd2 a6 11. a4 Qe7 12. g4 Nbd7 13. g5 Nh5 14. Bxh5 gxh5 15. Qxh5 Ne5 16. Bxe5 Qxe5 17. f4 Qxf4 18. Rf1 Bg4 19. Qxh7+ Kxh7 20. Rxf4 Bh5 21. Nc4 Rad8 22. Kd2 Bg6 23. Re1 Kg8 24. a5 Rd7 25. Kd3 Bd4 26. h4 Kg7 27. Rh1 Bh5 28. Ne2 Be5 29. Ng3 Bg6 30. Nf5+ Bxf5 31. Rxf5 Bd4 32. h5 Rh8 33. Rh3 Re8 34. Rh4 Rh8 35. Nb6 Re7 36. Nc4 Rd7 37. Rh2 Re8 38. b3 Rh8 39. Nb6 Rc7 40. Nc4 Rd7 41. Rh3 Rhd8 42. Rh1 Rh8 43. b4 Rhd8 44. Rhf1 Kg8 45. R1f3 Kg7 46. g6 fxg6 47. Rg3 g5 48. Rgxg5+ Kh7 49. Rg6 Ba1 50. bxc5 dxc5 51. d6 Bd4 52. e5 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.19"]
[Round "10"]
[White "Grinberg, Ricardo"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1/2-1/2"]
[ECO "B57"]
[WhiteElo "2425"]
[BlackElo "2315"]
[PlyCount "99"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nb3 e6 8. O-O a6 9. a4 Qc7 10. Bd3 b6 11. f4 Be7 12. Be3 Bb7 13. Qf3 Nb4 14. f5 exf5 15. Qxf5 O-O 16. Bd4 Nd7 17. Nd5 Bxd5 18. exd5 g6 19. Qh3 Nxd3 20. cxd3 Qb7 21. Rac1 Nc5 22. Qh6 f6 23. Bxc5 bxc5 24. Rce1 Rf7 25. Na5 Qxd5 26. Qe3 Bf8 27. Nc4 Rd8 28. a5 f5 29. Nb6 Qb3 30. Qd2 Qb5 31. Re6 Re8 32. Rxe8 Qxe8 33. d4 Qe4 34. dxc5 dxc5 35. Re1 Qd4+ 36. Qxd4 cxd4 37. Kf1 Bb4 38. Re8+ Rf8 39. Rxf8+ Kxf8 40. Nd7+ Ke7 41. Nb8 Kd6 42. Nxa6 Bxa5 43. Ke2 g5 44. Kd3 Kd5 45. b4 Bd8 46. b5 g4 47. Nb4+ Kc5 48. Nc2 Bf6 49. b6 Kxb6 50. Nxd4 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.19"]
[Round "10"]
[White "Rubinetti, Jorge Alberto"]
[Black "Brond, Victor"]
[Result "1/2-1/2"]
[ECO "B17"]
[WhiteElo "2380"]
[BlackElo "2345"]
[PlyCount "82"]
[EventDate "1976.03.08"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e6 7. Bd3 c5 8. O-O cxd4 9. Nxd4 Bc5 10. Nb3 Be7 11. Re1 O-O 12. Qf3 Re8 13. Bf4 Nd5 14. Bd2 Qc7 15. Nf5 exf5 16. Qxd5 Nf6 17. Qf3 g6 18. Bf4 Qb6 19. c4 Bd7 20. c5 Bxc5 21. Nxc5 Qxc5 22. Qxb7 Ng4 23. Qf3 Bc6 24. Qg3 Rxe1+ 25. Rxe1 Qb4 26. Rc1 Re8 27. h3 Re1+ 28. Bf1 Rxc1 29. Bxc1 Nf6 30. Qc7 Qb7 31. Qd8+ Kg7 32. Be3 Ne8 33. Bc5 a6 34. b4 Bb5 35. Bxb5 Qxb5 36. Qe7 h5 37. Bd4+ Kg8 38. Qe5 Qxe5 39. Bxe5 f6 40. Bb8 Kf7 41. Kf1 Ke6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.19"]
[Round "10"]
[White "Seidler, Aldo Emilio"]
[Black "Bronstein, Luis Marcos"]
[Result "1-0"]
[ECO "C14"]
[BlackElo "2380"]
[PlyCount "51"]
[EventDate "1976.03.08"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Nc3 Nd5 7. Bxe7 Qxe7 8. Qd2 Bd7 9. Nf3 Nxc3 10. Qxc3 Bc6 11. Be2 Nd7 12. O-O O-O 13. Rfe1 Qf6 14. Rad1 a5 15. Qe3 h6 16. c4 Rfe8 17. Qc3 b6 18. Rd2 Bb7 19. Bd1 Rad8 20. Re3 e5 21. dxe5 Nxe5 22. Rxe5 Rxe5 23. Qxe5 Rxd2 24. Qe8+ Kh7 25. Nxd2 Qg5 26. Ne4 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.19"]
[Round "10"]
[White "Trois, Francisco"]
[Black "Hase, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2310"]
[BlackElo "2430"]
[PlyCount "44"]
[EventDate "1976.03.08"]

1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bd2 O-O 7. Nh3 d6 8. a3 Bxc3 9. Bxc3 Qe7 10. e3 Bd7 11. O-O a6 12. Qd2 Rae8 13. f4 exf4 14. exf4 Qe3+ 15. Qxe3 Rxe3 16. Nf2 Kf7 17. Rfe1 Rxe1+ 18. Rxe1 Rb8 19. Bf3 Ne7 20. h3 Bc6 21. Kg2 Bxf3+ 22. Kxf3 b5 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.19"]
[Round "10"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2370"]
[BlackElo "2480"]
[PlyCount "30"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d4 Nxe4 5. dxe5 Be7 6. O-O O-O 7. Qe2 Nc5 8. Be3 Ne6 9. Nbd2 f6 10. exf6 Bxf6 11. c3 Ne5 12. Nd4 d6 13. Ba4 Nxd4 14. Bxd4 Ng4 15. Bxf6 Nxf6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.20"]
[Round "11"]
[White "Brond, Victor"]
[Black "Cuasnicu, Oscar"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2345"]
[BlackElo "2400"]
[PlyCount "46"]
[EventDate "1976.03.08"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Ne4 6. Qc2 f5 7. g3 Bd6 8. Bg2 O-O 9. O-O Nd7 10. b3 Rf6 11. Bb2 Rh6 12. Ne2 Qe8 13. Ne5 Qh5 14. h3 Qg5 15. Nf4 Qe7 16. Rac1 Ndf6 17. Ne2 Bd7 18. f3 Ng5 19. h4 Nf7 20. Nxf7 Qxf7 21. e4 fxe4 22. fxe4 dxe4 23. Bxe4 Qe7 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.20"]
[Round "11"]
[White "Bronstein, Luis Marcos"]
[Black "Trois, Francisco"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2380"]
[BlackElo "2310"]
[PlyCount "105"]
[EventDate "1976.03.08"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d6 5. Qf3 e6 6. Nge2 Nd7 7. Bf4 Qe7 8. O-O-O e5 9. dxe5 dxe5 10. Be3 Ngf6 11. h3 Nb6 12. Bb3 Nfd7 13. g4 O-O 14. h4 h6 15. h5 g5 16. Ng3 Nc5 17. Nf5 Nxb3+ 18. axb3 Bxf5 19. exf5 e4 20. Qxe4 Qxe4 21. Nxe4 Be5 22. c4 Rfe8 23. f3 Rad8 24. Rxd8 Rxd8 25. Kc2 Nc8 26. b4 Kg7 27. b3 b6 28. Re1 f6 29. Bd2 Kf7 30. Bc3 Bxc3 31. Nxc3 Rd4 32. Re4 Rd7 33. b5 cxb5 34. Nxb5 a6 35. Nc3 Rd6 36. Nd5 b5 37. Kc3 bxc4 38. bxc4 a5 39. Re1 Nb6 40. Re7+ Kf8 41. Re6 Nxd5+ 42. cxd5 Rxd5 43. Kc4 Rd1 44. Rxf6+ Kg7 45. Rg6+ Kh7 46. Ra6 Kg7 47. Rxa5 Rf1 48. Ra3 Rc1+ 49. Kd4 Rd1+ 50. Rd3 Re1 51. Re3 Rd1+ 52. Ke5 Ra1 53. f6+ 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.20"]
[Round "11"]
[White "Garcia, Raimundo"]
[Black "Seidler, Aldo Emilio"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2425"]
[PlyCount "157"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. d3 Bg7 7. e4 O-O 8. Nc3 e6 9. e5 Ng4 10. Bf4 d6 11. exd6 e5 12. Bg5 Qxd6 13. Nb5 Qd7 14. h3 Nh6 15. Bxh6 Bxh6 16. Nxe5 Qe7 17. Re1 Bxg2 18. Kxg2 Qb7+ 19. Qf3 Qxf3+ 20. Kxf3 a6 21. Nc7 Ra7 22. Nd5 Bg7 23. Kg2 Rb7 24. Rad1 Re8 25. Nf3 Rxe1 26. Rxe1 Bxb2 27. Rb1 Bg7 28. Rxb6 Rxb6 29. Nxb6 Kf8 30. Nd5 Nc6 31. Kf1 a5 32. Ke2 a4 33. a3 Bb2 34. Nb6 Bxa3 35. Nxa4 Ke7 36. Kd1 h6 37. Nc3 Ke6 38. Ne4 Ne5 39. Nxe5 Kxe5 40. Nd2 g5 41. Nf3+ Kf5 42. Ke2 h5 43. Ne1 Ke5 44. Ng2 f6 45. f4+ Ke6 46. Kf3 Bc1 47. fxg5 fxg5 48. Ke4 Bb2 49. Ne1 Be5 50. g4 hxg4 51. hxg4 Bf6 52. Nf3 Bd8 53. Nd2 Ba5 54. Nb3 Bb6 55. d4 cxd4 56. c5 Bc7 57. Nxd4+ Kd7 58. Kd5 Bf4 59. Nf5 Kc7 60. Nd6 Kd7 61. Nc4 Kc7 62. Na3 Kd7 63. Nb5 Bg3 64. c6+ Kc8 65. Nc3 Bf4 66. Kc5 Be3+ 67. Kb5 Bf2 68. Nd5 Bg1 69. Kc4 Bf2 70. Kd3 Bc5 71. Ke4 Ba3 72. Kf5 Bc1 73. Kf6 Kd8 74. Ke6 Ba3 75. Ke5 Bb2+ 76. Kd6 Ba3+ 77. Ke6 Kc8 78. c7 Bc1 79. Kd6 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.20"]
[Round "11"]
[White "Hase, Juan Carlos"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[ECO "B82"]
[WhiteElo "2430"]
[BlackElo "2380"]
[PlyCount "114"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 d6 5. f4 Nc6 6. Nf3 Nf6 7. Nc3 Be7 8. Bd3 e5 9. O-O exf4 10. Bxf4 O-O 11. Kh1 Be6 12. a3 Nd7 13. Nd5 Nde5 14. c4 Ng6 15. Bg3 Nce5 16. Nd4 Bh4 17. Bxe5 Nxe5 18. Be2 Bxd5 19. exd5 g6 20. b4 Rc8 21. Rc1 Bg5 22. Rc3 Bh6 23. Qe1 Bg7 24. Qf2 Re8 25. Rcc1 Qd7 26. c5 dxc5 27. Bb5 Qxd5 28. Bxe8 Rxe8 29. Rxc5 Qd7 30. Rxe5 Bxe5 31. Nf3 Bb8 32. Ng5 f5 33. Qa2+ Kg7 34. Qb3 Re7 35. Rd1 Qe8 36. Nf3 Qf7 37. Qc3+ Qf6 38. Qc8 Bd6 39. g3 a6 40. Rd2 Rc7 41. Qe8 Re7 42. Qc8 f4 43. g4 Rc7 44. Qe8 Qe7 45. Qxe7+ Bxe7 46. Kg2 b5 47. Re2 Kf7 48. Re4 Rc2+ 49. Kf1 g5 50. Ne5+ Ke8 51. Ke1 Rc3 52. Kd2 Rxa3 53. Nc6 Re3 54. Rxe3 fxe3+ 55. Kxe3 Bd6 56. Ke4 Bxh2 57. Kd5 Kd7 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.20"]
[Round "11"]
[White "Letelier Martner, Rene"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2350"]
[BlackElo "2370"]
[PlyCount "64"]
[EventDate "1976.03.08"]

1. g3 d5 2. c4 dxc4 3. Bg2 e5 4. Qa4+ c6 5. Qxc4 Be6 6. Qc2 Bd6 7. Nf3 Na6 8. Nc3 Nb4 9. Qb1 Qd7 10. a3 Na6 11. d4 Bf5 12. Ne4 Bxe4 13. Qxe4 f5 14. Qe3 e4 15. Nd2 Nc7 16. g4 fxg4 17. h3 Nf6 18. Nxe4 O-O-O 19. Nxf6 gxf6 20. hxg4 Be5 21. Be4 Kb8 22. Qb3 Bxd4 23. Bf4 Qxg4 24. Bxc6 Bxf2+ 25. Kf1 Bb6 26. Bxc7+ Kxc7 27. Bf3 Qg3 28. Qc3+ Kb8 29. Qe1 Qe5 30. Rb1 Rhg8 31. Qh4 Rg7 32. Rc1 Rdg8 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.20"]
[Round "11"]
[White "Rocha, Antonio Cavilhas"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "2315"]
[BlackElo "2420"]
[PlyCount "68"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. c4 d6 3. d4 c6 4. Nc3 Bg4 5. g3 Bxf3 6. exf3 e6 7. Bg2 d5 8. cxd5 Nxd5 9. O-O Be7 10. f4 O-O 11. f5 Nxc3 12. bxc3 exf5 13. Rb1 Qd7 14. Qb3 b6 15. d5 Bd6 16. dxc6 Nxc6 17. Rd1 Rad8 18. Bf4 Qc7 19. Qc4 Bxf4 20. Qxc6 Qxc6 21. Bxc6 Be5 22. c4 g6 23. Rxd8 Rxd8 24. Re1 Rc8 25. Bd5 Bf6 26. a4 Kf8 27. Rb1 Rc7 28. Rb5 Bc3 29. Rb3 Bd4 30. Rb5 Ke7 31. a5 Kf6 32. a6 h5 33. Kf1 Bc5 34. Rb3 Rd7 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.20"]
[Round "11"]
[White "Sanguineti, Raul"]
[Black "Grinberg, Ricardo"]
[Result "1/2-1/2"]
[ECO "E43"]
[WhiteElo "2480"]
[BlackElo "2425"]
[PlyCount "44"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 Be7 5. Nc3 O-O 6. Be2 cxd4 7. Nxd4 a6 8. O-O Qc7 9. Bd2 b6 10. Rc1 Bb7 11. Bf3 d6 12. Bxb7 Qxb7 13. Qe2 Nbd7 14. Rfd1 Rfe8 15. Be1 Rac8 16. f3 Ne5 17. b3 Nfd7 18. Ne4 Nc5 19. Nf2 Bf8 20. Bc3 Rb8 21. f4 Ned7 22. Qf3 Qxf3 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.20"]
[Round "11"]
[White "Schweber, Samuel"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2455"]
[BlackElo "2370"]
[PlyCount "77"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. d4 d6 3. g3 g6 4. Bg2 Bg7 5. b3 O-O 6. Bb2 e5 7. dxe5 Nfd7 8. Na3 dxe5 9. e4 Nc6 10. Nc4 Re8 11. a4 Qe7 12. Ba3 Qf6 13. Ne3 Nf8 14. O-O Nd4 15. Nd2 c6 16. c3 Nde6 17. Ng4 Qd8 18. Nc4 Qxd1 19. Rfxd1 Nc7 20. Nge3 Be6 21. Bd6 Rac8 22. b4 b5 23. Bxc7 Rxc7 24. Nd6 Rd8 25. axb5 Bb3 26. Rdb1 Be6 27. Rd1 Bb3 28. Rd2 Bh6 29. Ndc4 Rb8 30. Na5 Bxe3 31. fxe3 Be6 32. bxc6 Rb5 33. Bf1 Rxa5 34. Rxa5 Rxc6 35. c4 Bxc4 36. Rc2 Bb5 37. Rxc6 Bxc6 38. Rxa7 Bxe4 39. b5 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.21"]
[Round "12"]
[White "Cuasnicu, Oscar"]
[Black "Hase, Juan Carlos"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "2400"]
[BlackElo "2430"]
[PlyCount "116"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3 d6 9. c3 Na5 10. Bc2 c5 11. d4 Qc7 12. dxe5 dxe5 13. Nbd2 Be6 14. Nh4 g6 15. Nf1 Rfd8 16. Qf3 Ne8 17. Qg3 Bxh4 18. Qxh4 f6 19. Ne3 Nb7 20. Ng4 Bxg4 21. Qxg4 c4 22. f4 Nc5 23. fxe5 Qxe5 24. Be3 Ng7 25. Rad1 Nge6 26. Rd5 Rxd5 27. exd5 Qxd5 28. Bxg6 hxg6 29. Qxg6+ Ng7 30. Bd4 Nce6 31. Bxf6 Qh5 32. Qg3 Kh7 33. Re4 Qf5 34. Rh4+ Nh5 35. Be5 Rg8 36. Qe3 Rg5 37. Qa7+ Kg6 38. Bd4 Nxd4 39. Qxd4 Nf6 40. Qd8 Qe6 41. Qd2 Rd5 42. Rd4 Qb6 43. Qe3 Rxd4 44. cxd4 Qd6 45. a3 Qd5 46. Kf2 Qf5+ 47. Ke2 Qc2+ 48. Qd2 Qe4+ 49. Kf2 Nd5 50. g3 Qh1 51. Qc2+ Kg7 52. Qf5 Nf6 53. Qe5 Qh2+ 54. Ke3 Qxb2 55. g4 Qc1+ 56. Kf3 Qf1+ 57. Kg3 Kg6 58. g5 Qg1+ 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.21"]
[Round "12"]
[White "Emma, Jaime"]
[Black "Sanguineti, Raul"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2420"]
[BlackElo "2480"]
[PlyCount "67"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O Be7 5. d3 O-O 6. Nbd2 a5 7. Re1 a4 8. Rb1 Nc6 9. c3 e5 10. Qc2 Re8 11. e4 d4 12. Nc4 Bc5 13. h3 Be6 14. cxd4 Nxd4 15. Nxd4 Bxd4 16. b4 axb3 17. axb3 Qd7 18. Kh2 b5 19. Ne3 Ra6 20. Qe2 Rea8 21. Rd1 h6 22. Qe1 Ra2 23. b4 Ne8 24. Bf1 Nd6 25. Bd2 c5 26. bxc5 Nb7 27. c6 Qxc6 28. Rdc1 Qb6 29. Kg2 Nc5 30. Nc2 Nb3 31. Rxb3 Rxc2 32. Rbb1 Rxc1 33. Rxc1 Ra2 34. Kg1 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.21"]
[Round "12"]
[White "Garcia Palermo, Carlos"]
[Black "Brond, Victor"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "2370"]
[BlackElo "2345"]
[PlyCount "81"]
[EventDate "1976.03.08"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. Be2 O-O 6. Nf3 c6 7. Bg5 h6 8. Bh4 Qc7 9. O-O g5 10. Bg3 Nh5 11. Ne1 Nxg3 12. hxg3 Qb6 13. Nc2 c5 14. Qd2 cxd4 15. Nd5 Qd8 16. Nxd4 e6 17. Nc3 a6 18. Rad1 Qc7 19. Nb3 Rd8 20. c5 Bf8 21. e5 d5 22. f4 Nd7 23. Bh5 Nxc5 24. fxg5 Nxb3 25. axb3 Bc5+ 26. Kh2 Qxe5 27. Ne4 Be7 28. Rxf7 Bxg5 29. Nxg5 Qxg5 30. Qxg5+ hxg5 31. Rc1 Bd7 32. Rc7 Rac8 33. Rfxd7 Rxd7 34. Rxd7 Rc2 35. Bf7+ Kf8 36. Bxe6 Rxb2 37. Bxd5 b5 38. Ra7 Rd2 39. Be6 Rd6 40. Bf5 Rh6+ 41. Kg1 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.21"]
[Round "12"]
[White "Letelier Martner, Rene"]
[Black "Schweber, Samuel"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2350"]
[BlackElo "2455"]
[PlyCount "88"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d5 6. Nbd2 c5 7. e4 Nc6 8. Re1 e5 9. exd5 Nxd5 10. Nc4 Re8 11. a4 b6 12. c3 h6 13. Qb3 Be6 14. a5 Rb8 15. Qc2 Qc7 16. axb6 axb6 17. Ne3 Nde7 18. Bd2 Rbd8 19. Ra3 Qd6 20. Nc4 Qc7 21. Bc1 Nd5 22. Bd2 Rd7 23. Raa1 Red8 24. h3 Nde7 25. Bf1 Bd5 26. Qd1 Bxc4 27. dxc4 f5 28. Qc1 e4 29. Bf4 Qb7 30. Nh2 g5 31. Be3 Ne5 32. Qc2 Nd3 33. Bxd3 Rxd3 34. Rad1 Ng6 35. Rxd3 exd3 36. Qb3 Qc6 37. Bd2 Ne5 38. Qb5 Qxb5 39. cxb5 Nc4 40. Nf1 Nxb2 41. Ne3 f4 42. gxf4 gxf4 43. Nf5 Nc4 44. Bxf4 d2 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.21"]
[Round "12"]
[White "Rubinetti, Jorge Alberto"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2380"]
[BlackElo "2380"]
[PlyCount "82"]
[EventDate "1976.03.08"]

1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. a3 d6 6. Rb1 a5 7. Nf3 e6 8. d3 Nge7 9. O-O O-O 10. Bd2 b6 11. Ne1 Bb7 12. Nc2 Rb8 13. b4 axb4 14. axb4 Nxb4 15. Nxb4 cxb4 16. Rxb4 Bxg2 17. Kxg2 d5 18. cxd5 Nxd5 19. Nxd5 Qxd5+ 20. f3 Rfc8 21. Qb1 b5 22. Rc1 Rxc1 23. Bxc1 h5 24. Be3 Bc3 25. Rb3 Qe5 26. Bf2 b4 27. d4 Qb5 28. Qe4 Qc4 29. Rb1 b3 30. Qe5 Rc8 31. Qe4 Rb8 32. Qe5 Qb5 33. Qc7 Ba5 34. Qc5 b2 35. d5 Qxc5 36. Bxc5 Bc3 37. d6 f6 38. Ba3 Kf7 39. d7 Rd8 40. Bxb2 Bxb2 41. Rxb2 Rxd7 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.21"]
[Round "12"]
[White "Seidler, Aldo Emilio"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1/2-1/2"]
[ECO "B57"]
[BlackElo "2315"]
[PlyCount "71"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nb3 e6 8. Be3 Qc7 9. Qe2 a6 10. a4 b6 11. f3 Be7 12. O-O O-O 13. Rfd1 Bb7 14. Qf2 Ne5 15. Be2 Ned7 16. g4 Rfd8 17. g5 Ne8 18. f4 Nc5 19. Bf3 Bf8 20. h4 Rab8 21. h5 Qe7 22. Nd4 Nc7 23. b4 Nd7 24. b5 Nc5 25. bxa6 N7xa6 26. Rab1 Ba8 27. Rb2 Nc7 28. Rdb1 Qe8 29. Ndb5 Nxb5 30. axb5 Bb7 31. Qg2 Ra8 32. Re1 Ra3 33. Nb1 Ra5 34. Nc3 Ra3 35. Nb1 Ra5 36. Nc3 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.21"]
[Round "12"]
[White "Trois, Francisco"]
[Black "Garcia, Raimundo"]
[Result "1/2-1/2"]
[ECO "C63"]
[WhiteElo "2310"]
[BlackElo "2425"]
[PlyCount "85"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d4 fxe4 5. Nxe5 Nxe5 6. dxe5 c6 7. Nc3 cxb5 8. Nxe4 d5 9. exd6 Nf6 10. Qd4 Be7 11. Bg5 Bf5 12. O-O-O Bxe4 13. Bxf6 Bxf6 14. Qxe4+ Kf8 15. Qxb7 Rb8 16. Qd5 Qc8 17. Kb1 g6 18. d7 Qc4 19. Qd6+ Kf7 20. Rhe1 Rhd8 21. Qa6 Rb6 22. Qxa7 Qb4 23. c3 Bxc3 24. Re2 Re6 25. Rc2 Bf6 26. Qb7 Re1 27. Qd5+ Kg7 28. a3 Rxd1+ 29. Qxd1 Qe4 30. g4 b4 31. axb4 Qxb4 32. f3 Qa5 33. Re2 Qa7 34. Rd2 Qb7 35. h4 Bxh4 36. Rd6 Be7 37. Qd4+ Kg8 38. Qc4+ Kf8 39. Qf4+ Kg7 40. Qd4+ Kg8 41. Qc4+ Kf8 42. Qf4+ Kg7 43. Qd4+ 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.21"]
[Round "12"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Grinberg, Ricardo"]
[Result "0-1"]
[ECO "B88"]
[WhiteElo "2370"]
[BlackElo "2425"]
[PlyCount "54"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Be7 7. O-O O-O 8. Bb3 Nc6 9. Be3 a6 10. f4 Nxd4 11. Qxd4 b5 12. a4 Rb8 13. axb5 axb5 14. Rfd1 b4 15. Na4 Ng4 16. Bc1 Qa5 17. h3 e5 18. Qd2 Qa7+ 19. Kh1 Nf2+ 20. Kh2 Nxd1 21. Qxd1 Qf2 22. f5 Ba6 23. Qf3 Qxf3 24. gxf3 Be2 25. Kg3 Ra8 26. Rb1 Rfb8 27. Be3 Bd8 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.23"]
[Round "13"]
[White "Brond, Victor"]
[Black "Letelier Martner, Rene"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "2345"]
[BlackElo "2350"]
[PlyCount "75"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. e4 Nh5 10. Bg5 f6 11. Be3 f5 12. exf5 Bxf5 13. Bd3 Bxd3 14. Qxd3 Nd7 15. Ng5 Qb6 16. O-O O-O 17. Ne6 Ne5 18. Qe2 Qb4 19. a5 Qc4 20. Nxf8 Qxe2 21. Nxe2 Rxf8 22. Bd2 Nd3 23. Bc3 Nhf4 24. Nxf4 Rxf4 25. Bxg7 Kxg7 26. Ra3 Nb4 27. Rd1 Rf5 28. Re3 Kf7 29. Re6 Rf6 30. Rde1 Nxd5 31. Re8 Rf4 32. Rd8 Nf6 33. Rxd6 Rb4 34. Ree6 Nd5 35. Re5 Nf6 36. Rxc5 Rxb2 37. Rc7+ Ke8 38. f3 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.23"]
[Round "13"]
[White "Bronstein, Luis Marcos"]
[Black "Cuasnicu, Oscar"]
[Result "1/2-1/2"]
[ECO "C66"]
[WhiteElo "2380"]
[BlackElo "2400"]
[PlyCount "48"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. O-O Nf6 6. Nc3 exd4 7. Nxd4 Be7 8. b3 O-O 9. Bb2 Re8 10. Bxc6 bxc6 11. Qf3 Bf8 12. g3 g6 13. Rfe1 c5 14. Ndb5 Bg7 15. a4 a6 16. Na3 Bc6 17. Nc4 Rb8 18. Nd5 Nxd5 19. exd5 Bxb2 20. Nxb2 Bd7 21. Nc4 Qg5 22. Re3 Rxe3 23. Nxe3 Re8 24. Rd1 Bc8 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.23"]
[Round "13"]
[White "Garcia, Raimundo"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "2425"]
[BlackElo "2380"]
[PlyCount "27"]
[EventDate "1976.03.08"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 e6 6. Bf4 Nc6 7. e3 Be7 8. h3 O-O 9. Bd3 Bd7 10. O-O Qb6 11. a3 Rfc8 12. Qe2 Be8 13. Rad1 Na5 14. Bg5 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.23"]
[Round "13"]
[White "Grinberg, Ricardo"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2425"]
[BlackElo "2420"]
[PlyCount "29"]
[EventDate "1976.03.08"]

1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 Bg4 5. Bb5 a6 6. Bxc6+ bxc6 7. h3 Bxf3 8. Qxf3 e6 9. d5 cxd5 10. exd5 Be7 11. O-O O-O 12. dxe6 fxe6 13. Qe2 e5 14. f4 exf4 15. Bxf4 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.23"]
[Round "13"]
[White "Hase, Juan Carlos"]
[Black "Garcia Palermo, Carlos"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "2430"]
[BlackElo "2370"]
[PlyCount "62"]
[EventDate "1976.03.08"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Nxd5 7. Bc4 Nb6 8. Bb3 Bg7 9. Nf3 Nc6 10. Be3 O-O 11. d5 Na5 12. Bd4 e5 13. Bc5 Re8 14. O-O e4 15. Ne1 Qh4 16. g3 Qf6 17. Bc2 Bh3 18. Nxe4 Qxb2 19. Rb1 Qxa2 20. Ng2 Nxd5 21. Nd6 Nc3 22. Bb3 Nxb3 23. Qxb3 Qxb3 24. Rxb3 Reb8 25. Nxb7 Be6 26. Rb4 Nd5 27. Rbb1 Bf5 28. Bd6 Bxb1 29. Bxb8 Bd3 30. Rd1 Rxb8 31. Rxd3 Rxb7 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.23"]
[Round "13"]
[White "Rocha, Antonio Cavilhas"]
[Black "Trois, Francisco"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2315"]
[BlackElo "2310"]
[PlyCount "39"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. O-O-O h6 11. Bh4 Na6 12. Ne1 Nc5 13. f3 c6 14. Nc2 a5 15. b3 Nfd7 16. Rd2 Bf6 17. Bxf6 Nxf6 18. Rhd1 Kf8 19. Kb2 Be6 20. Bf1 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.23"]
[Round "13"]
[White "Sanguineti, Raul"]
[Black "Seidler, Aldo Emilio"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2480"]
[PlyCount "51"]
[EventDate "1976.03.08"]

1. Nf3 c5 2. c4 b6 3. e3 Nf6 4. d4 e6 5. Bd3 Bb7 6. O-O Bxf3 7. Qxf3 Nc6 8. Nc3 cxd4 9. exd4 Nxd4 10. Qg3 d6 11. Re1 h5 12. Be3 Nc6 13. Bc2 Ne5 14. Ba4+ Nfd7 15. Bd4 h4 16. Qh3 Qc7 17. Bxe5 dxe5 18. Rad1 O-O-O 19. Qf3 Bc5 20. Bxd7+ Kb8 21. Nb5 Qb7 22. Qxb7+ Kxb7 23. Rxe5 a6 24. Rxc5 axb5 25. Rxb5 Kc7 26. c5 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.23"]
[Round "13"]
[White "Schweber, Samuel"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2455"]
[BlackElo "2370"]
[PlyCount "80"]
[EventDate "1976.03.08"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 c5 6. c3 Qc7 7. Bf4 d6 8. Qc1 Bd7 9. Bh6 cxd4 10. Bxg7 Kxg7 11. cxd4 Qxc1 12. Rxc1 Nc6 13. Nc3 Rfc8 14. e3 Nd8 15. Ne1 Rc7 16. Ne2 Rxc1 17. Rxc1 Rc8 18. Rxc8 Bxc8 19. Nc3 Kf8 20. Nd3 Bd7 21. h3 e6 22. f4 Ne8 23. Kf2 Ke7 24. e4 Nc7 25. Ke3 Nb5 26. Ne2 Nc7 27. Nb4 Nc6 28. Nxc6+ Bxc6 29. Nc3 Nb5 30. Nxb5 Bxb5 31. e5 d5 32. g4 Bc4 33. b3 Bb5 34. h4 h6 35. Bf3 a5 36. g5 h5 37. f5 Be8 38. Kd2 b5 39. b4 a4 40. Ke3 Bc6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.25"]
[Round "14"]
[White "Cuasnicu, Oscar"]
[Black "Garcia, Raimundo"]
[Result "1/2-1/2"]
[ECO "C92"]
[WhiteElo "2400"]
[BlackElo "2425"]
[PlyCount "24"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Be6 10. d4 Bxb3 11. axb3 exd4 12. cxd4 d5 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.25"]
[Round "14"]
[White "Garcia Palermo, Carlos"]
[Black "Bronstein, Luis Marcos"]
[Result "1/2-1/2"]
[ECO "E14"]
[WhiteElo "2370"]
[BlackElo "2380"]
[PlyCount "28"]
[EventDate "1976.03.08"]

1. d4 Nf6 2. Nf3 b6 3. c4 e6 4. e3 Bb7 5. Bd3 c5 6. O-O Be7 7. b3 O-O 8. Bb2 d6 9. Nbd2 Nbd7 10. Qc2 g6 11. Rad1 Qc7 12. Ne4 Nxe4 13. Bxe4 f5 14. Bxb7 Qxb7 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.25"]
[Round "14"]
[White "Letelier Martner, Rene"]
[Black "Hase, Juan Carlos"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2350"]
[BlackElo "2430"]
[PlyCount "104"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Nxc6 bxc6 7. Nd2 d5 8. Qe2 Be7 9. O-O O-O 10. c4 Re8 11. b3 a5 12. Bb2 a4 13. cxd5 exd5 14. e5 Bg4 15. Nf3 Nh5 16. h3 Bd7 17. Qe3 g6 18. b4 a3 19. Bc3 Bf8 20. Rfd1 Ng7 21. Bc2 Bf5 22. Bb3 Rb8 23. Nd4 Qb6 24. Rac1 Bd7 25. Rc2 Ne6 26. Qg3 Bg7 27. Nf3 Nc7 28. h4 Nb5 29. Ba1 Bf5 30. Rcc1 h5 31. Ng5 Nc7 32. Bd4 Qb7 33. Ba4 Nb5 34. Bxb5 Qxb5 35. Qxa3 Qxb4 36. Qxb4 Rxb4 37. Rxc6 Bxe5 38. Bxe5 Rxe5 39. Rc5 Re2 40. Rcxd5 Rxh4 41. Ra5 Rf4 42. f3 Rc4 43. Rxf5 gxf5 44. Nh3 Rxa2 45. Rd5 h4 46. Rxf5 Rc1+ 47. Kh2 Raa1 48. Nf2 Rf1 49. Rf4 Rxf2 50. Rxh4 Raa2 51. Rg4+ Kf8 52. Kg1 Rfc2 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.25"]
[Round "14"]
[White "Rubinetti, Jorge Alberto"]
[Black "Rocha, Antonio Cavilhas"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2380"]
[BlackElo "2315"]
[PlyCount "103"]
[EventDate "1976.03.08"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f3 Qc7 10. g4 Ne5 11. Be3 Nc4 12. Bxc4 Qxc4 13. Kb1 Qc7 14. h4 O-O-O 15. g5 Ng8 16. Qf2 b5 17. f4 Ne7 18. f5 Nc6 19. Nce2 Ne5 20. Rhg1 Re8 21. Bc1 Kb7 22. Rg3 Ka8 23. b3 Qb7 24. Qg2 Bc8 25. Bb2 Nd7 26. Re3 Nc5 27. Ng3 h6 28. fxe6 fxe6 29. g6 h5 30. Rf1 e5 31. Ndf5 Re6 32. Qe2 Rxg6 33. Nxh5 Re6 34. Nfg3 g6 35. Ref3 Nd7 36. Nf6 Nxf6 37. Rxf6 Rxf6 38. Rxf6 Be7 39. Rxg6 Rxh4 40. Rg8 Kb8 41. Qd1 Rh7 42. Qg4 Rf7 43. Nf5 Rf8 44. Rg7 Bxf5 45. exf5 Qh1+ 46. Bc1 Qh4 47. Qg1 Rxf5 48. Qb6+ Kc8 49. Qxa6+ Kd7 50. Qb7+ Ke6 51. Qc8+ Kf6 52. Rxe7 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.25"]
[Round "14"]
[White "Schweber, Samuel"]
[Black "Brond, Victor"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2455"]
[BlackElo "2345"]
[PlyCount "81"]
[EventDate "1976.03.08"]

1. Nf3 g6 2. d4 Bg7 3. g3 d6 4. Bg2 Nf6 5. O-O O-O 6. c4 c6 7. Nc3 Bf5 8. Ne1 Qc8 9. e4 Bh3 10. Nd3 Bxg2 11. Kxg2 Nbd7 12. Qb3 e5 13. d5 c5 14. Bg5 a6 15. a4 Rb8 16. a5 Qc7 17. Qc2 Kh8 18. Bd2 Ng8 19. Na4 f5 20. f3 fxe4 21. fxe4 Bh6 22. Bc3 Be3 23. Nf4 Bxf4 24. gxf4 Ngf6 25. Nb6 Kg8 26. Qe2 exf4 27. Rxf4 Nh5 28. Rxf8+ Rxf8 29. Qg4 Nf4+ 30. Kh1 Nxb6 31. axb6 Qe7 32. e5 dxe5 33. Rf1 h5 34. Qg3 Kh7 35. Re1 Rf5 36. Qe3 Qg5 37. Rg1 Qf6 38. Re1 Qg5 39. Rg1 Qf6 40. Re1 Qg5 41. Rg1 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.25"]
[Round "14"]
[White "Seidler, Aldo Emilio"]
[Black "Grinberg, Ricardo"]
[Result "1-0"]
[ECO "B22"]
[BlackElo "2425"]
[PlyCount "81"]
[EventDate "1976.03.08"]

1. e4 c5 2. c3 Nf6 3. d3 d5 4. Nd2 Nc6 5. exd5 Nxd5 6. Ngf3 e5 7. Nc4 f6 8. a4 Be6 9. Be2 Be7 10. O-O O-O 11. Re1 Qd7 12. Bf1 Rfd8 13. h3 Nxc3 14. Ncxe5 Nxd1 15. Nxd7 Bb3 16. Rxe7 Nxe7 17. Nxc5 Bd5 18. Be2 Rac8 19. d4 b6 20. Nd3 Bxf3 21. gxf3 Rxd4 22. Kf1 Rcd8 23. Ra3 Nc6 24. Ke1 Ne5 25. Nxe5 fxe5 26. Ra1 h6 27. a5 Kf7 28. axb6 axb6 29. Ra7+ Kf6 30. Rc7 R8d6 31. Rc2 Kf5 32. b3 e4 33. f4 g6 34. Bg4+ Kf6 35. Ba3 e3 36. Bxd6 exf2+ 37. Rxf2 Rxd6 38. Bxd1 Rd3 39. Rf3 Rd4 40. Bc2 h5 41. Rg3 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.25"]
[Round "14"]
[White "Trois, Francisco"]
[Black "Sanguineti, Raul"]
[Result "0-1"]
[ECO "C72"]
[WhiteElo "2310"]
[BlackElo "2480"]
[PlyCount "76"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Be7 6. d4 b5 7. Bb3 Nxd4 8. Nxd4 exd4 9. e5 c6 10. a4 Rb8 11. axb5 axb5 12. exd6 Bxd6 13. Qf3 Qc7 14. Re1+ Kf8 15. Bg5 Nh6 16. Bxh6 gxh6 17. Qf6 Rg8 18. Qxh6+ Rg7 19. Re8+ Kxe8 20. Qxg7 Bxh2+ 21. Kh1 Be5 22. Qxh7 f5 23. Qg6+ Kd8 24. Qg8+ Ke7 25. Ra7 Rb7 26. Qf7+ Kd6 27. Qf8+ Qe7 28. Qh6+ Qf6 29. Qxf6+ Bxf6 30. Ra8 Rh7+ 31. Kg1 Bd7 32. Nd2 c5 33. Bg8 Rg7 34. Kf1 Bc6 35. Rf8 Be7 36. Rc8 Bxg2+ 37. Ke2 Kd7 38. Rb8 Bd6 0-1

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.25"]
[Round "14"]
[White "Van Riemsdijk, Herman Claudius"]
[Black "Emma, Jaime"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2370"]
[BlackElo "2420"]
[PlyCount "45"]
[EventDate "1976.03.08"]

1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 Bg4 5. Be2 e6 6. Be3 d5 7. e5 Nd7 8. Ng5 Bxe2 9. Nxe2 Be7 10. f4 h6 11. Nf3 Na5 12. O-O Nc4 13. Bc1 c5 14. b3 Na5 15. f5 exf5 16. Nf4 Nf8 17. dxc5 Bxc5+ 18. Kh1 d4 19. Qd3 Nc6 20. Qxf5 Qd7 21. e6 Nxe6 22. Nxe6 fxe6 23. Qxc5 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.26"]
[Round "15"]
[White "Brond, Victor"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2345"]
[BlackElo "2370"]
[PlyCount "107"]
[EventDate "1976.03.08"]

1. d4 c5 2. d5 Nf6 3. c4 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3 Bg7 9. Bh3 O-O 10. O-O Nbd7 11. Qc2 Qb6 12. Rd1 Qb7 13. Rb1 Nb6 14. e4 Ne8 15. b3 Nc7 16. Bb2 Nb5 17. Nxb5 Bxb5 18. Bxg7 Kxg7 19. Qc3+ Kg8 20. Qd2 Bd7 21. Qh6 f6 22. Bxd7 Qxd7 23. a4 Rfb8 24. Qe3 Qc8 25. Kg2 Nd7 26. h4 Rb4 27. Rbc1 Nf8 28. Nd2 Rab8 29. Rc4 Nd7 30. Rxb4 Rxb4 31. Nc4 Ne5 32. Nxe5 fxe5 33. h5 Qg4 34. f3 Qc8 35. hxg6 hxg6 36. Qh6 Kf7 37. Qh7+ Kf6 38. g4 Qf8 39. Rh1 Qg7 40. g5+ Kf7 41. Qh3 Rb8 42. a5 Qg8 43. a6 Rxb3 44. a7 Rb2+ 45. Kg3 Ra2 46. Rb1 Rxa7 47. Rb8 Qxb8 48. Qh7+ Ke8 49. Qg8+ Kd7 50. Qxb8 Rc7 51. Qg8 c4 52. Qxg6 Rc8 53. Qe6+ Kc7 54. Qxe7+ 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.26"]
[Round "15"]
[White "Bronstein, Luis Marcos"]
[Black "Letelier Martner, Rene"]
[Result "1-0"]
[ECO "B09"]
[WhiteElo "2380"]
[BlackElo "2350"]
[PlyCount "63"]
[EventDate "1976.03.08"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 c6 5. Nf3 Bg7 6. Bd3 O-O 7. O-O Nbd7 8. Kh1 b5 9. e5 Ne8 10. Be3 Nb6 11. Qe1 b4 12. Ne4 Nd5 13. Bd2 f5 14. Neg5 a5 15. Bc4 h6 16. Nh3 Nec7 17. Qg3 Qe8 18. Rae1 Ne6 19. Nf2 Ra7 20. h4 Kh8 21. Nh3 Qf7 22. c3 bxc3 23. bxc3 Rg8 24. Re2 Bf8 25. Rfe1 Ng7 26. Qf2 Nh5 27. Bd3 Bg7 28. Nfg5 hxg5 29. Nxg5 Qf8 30. g4 Bh6 31. gxh5 Bxg5 32. hxg5 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.26"]
[Round "15"]
[White "Emma, Jaime"]
[Black "Seidler, Aldo Emilio"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2420"]
[PlyCount "103"]
[EventDate "1976.03.08"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bg5 Bb4 6. cxd5 exd5 7. e3 c5 8. Bxf6 Qxf6 9. a3 Bxc3+ 10. bxc3 c4 11. g3 Qa6 12. Bg2 Nb6 13. Qc2 O-O 14. O-O Qa5 15. Nd2 Bd7 16. Rfc1 f5 17. Qb2 Rf6 18. Qb4 Qa4 19. Nf3 a5 20. Qb2 Qb3 21. Qd2 Ba4 22. Rcb1 Qc2 23. Qe1 Be8 24. Ne5 Rd8 25. Bf3 Na4 26. Rc1 Qb3 27. Bd1 Qb6 28. f4 Qc7 29. Ra2 Rb6 30. Bxa4 Bxa4 31. Rg2 Rb3 32. g4 fxg4 33. Qh4 Rd6 34. Rxg4 Be8 35. f5 h5 36. Rg5 Qe7 37. Kh1 Rdb6 38. Qg3 Rb1 39. Rxb1 Rxb1+ 40. Kg2 Rb3 41. h4 Kf8 42. Qf3 Qf6 43. Kg3 Rxc3 44. Rg6 Qd8 45. f6 gxf6 46. Rxf6+ Kg7 47. Rf7+ Kg8 48. Qxh5 Rxe3+ 49. Kf2 Rf3+ 50. Kxf3 Qf6+ 51. Rxf6 Bxh5+ 52. Ke3 1-0

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.26"]
[Round "15"]
[White "Garcia, Raimundo"]
[Black "Garcia Palermo, Carlos"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2425"]
[BlackElo "2370"]
[PlyCount "144"]
[EventDate "1976.03.08"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 c6 7. O-O Bg4 8. h3 Bxf3 9. Bxf3 Nbd7 10. e4 a6 11. a4 e5 12. d5 c5 13. a5 h5 14. Bg5 Qc7 15. h4 Kh7 16. Qd2 Ng8 17. Na4 Bh6 18. Bxh6 Nxh6 19. b4 cxb4 20. Qxb4 Ng8 21. Rfc1 Rfc8 22. Ra3 Ngf6 23. Rac3 Ne8 24. Bg2 Nc5 25. Nb6 Nf6 26. Re1 Rab8 27. Nxc8 Rxc8 28. f3 Rf8 29. Rb1 Qe7 30. Qa3 Rb8 31. Qc1 Ne8 32. Qe3 Qd8 33. Ra3 Nf6 34. Bh3 Kg7 35. Kg2 Ra8 36. Ra2 Qc7 37. Rb4 Qd8 38. Rb6 Qe7 39. Rab2 Rb8 40. Rb1 Qc7 41. Qa3 Rd8 42. Kg1 Re8 43. R6b2 Rd8 44. Re2 Rb8 45. Kh1 Rh8 46. Rbe1 Qe7 47. Qc3 Rb8 48. Rb1 Re8 49. Bg2 Kh7 50. Rf1 Rf8 51. Rfe1 Rb8 52. Rb1 Re8 53. Bh3 Kg7 54. Qa3 Rf8 55. Reb2 Rd8 56. Rb6 Qc7 57. Rd1 Re8 58. Rbb1 Qe7 59. Qb4 Rd8 60. Qb6 Ra8 61. Rd2 Kg8 62. Re2 Kg7 63. Rf1 Kg8 64. Kg2 Kg7 65. Re3 Re8 66. Rf2 Rf8 67. Rfe2 Re8 68. Qb2 Qc7 69. Qa1 Rb8 70. f4 b5 71. axb6 Rxb6 72. fxe5 dxe5 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.26"]
[Round "15"]
[White "Grinberg, Ricardo"]
[Black "Trois, Francisco"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2425"]
[BlackElo "2310"]
[PlyCount "157"]
[EventDate "1976.03.08"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 5. h3 Nf6 6. Bd3 O-O 7. O-O Nfd7 8. Bg5 h6 9. Be3 e5 10. Qd2 Kh7 11. Rad1 Qe7 12. Rfe1 Nf6 13. Nh2 b5 14. b4 Ng4 15. Nxg4 Bxg4 16. Be2 Bxe2 17. Rxe2 a5 18. a3 axb4 19. axb4 Na6 20. d5 Nxb4 21. dxc6 Nxc6 22. Nxb5 Rfd8 23. c4 Bf8 24. Qc3 Rdc8 25. Red2 Nd4 26. Bxd4 exd4 27. Qxd4 Ra4 28. Qd5 Rc5 29. Qxd6 Raxc4 30. Qxe7 Bxe7 31. Nd4 Re5 32. f3 Bg5 33. Rd3 Rxd4 34. Rxd4 Be3+ 35. Kf1 Bxd4 36. Rxd4 Ra5 37. Ke2 Ra2+ 38. Rd2 Ra3 39. g3 h5 40. h4 Kg7 41. Rd3 Ra2+ 42. Ke3 Kf6 43. Kf4 Re2 44. Rd6+ Kg7 45. Rc6 Re1 46. Rc5 Kf6 47. Rc3 Kg7 48. e5 Kf8 49. Re3 Rg1 50. Rc3 Re1 51. Re3 Rg1 52. Rb3 Re1 53. Rb5 Kg7 54. Rb4 Kf8 55. Re4 Rg1 56. Ra4 Re1 57. Rc4 Re2 58. Re4 Rg2 59. e6 fxe6 60. Rxe6 Kf7 61. Rb6 Kg7 62. g4 hxg4 63. fxg4 Ra2 64. Rb7+ Kf6 65. Rb6+ Kg7 66. Re6 Ra4+ 67. Re4 Ra7 68. Rd4 Rb7 69. Ke5 Re7+ 70. Kd6 Re1 71. Kd5 Rh1 72. g5 Re1 73. Re4 Rd1+ 74. Ke6 Ra1 75. Rd4 Re1+ 76. Kd7 Kf7 77. Kd8 Re8+ 78. Kc7 Re7+ 79. Kd6 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.26"]
[Round "15"]
[White "Hase, Juan Carlos"]
[Black "Schweber, Samuel"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2430"]
[BlackElo "2455"]
[PlyCount "1"]
[EventDate "1976.03.08"]

1. e4 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.26"]
[Round "15"]
[White "Rocha, Antonio Cavilhas"]
[Black "Cuasnicu, Oscar"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2315"]
[BlackElo "2400"]
[PlyCount "23"]
[EventDate "1976.03.08"]

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. a4 Be7 6. dxe5 dxe5 7. O-O Ngf6 8. Nc3 O-O 9. Qe2 a5 10. Nh4 Nc5 11. Nf5 Bxf5 12. exf5 1/2-1/2

[Event "Mar del Plata International-30 Maderna"]
[Site "Mar del Plata ARG"]
[Date "1976.03.26"]
[Round "15"]
[White "Sanguineti, Raul"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[ECO "A75"]
[WhiteElo "2480"]
[BlackElo "2380"]
[PlyCount "135"]
[EventDate "1976.03.08"]

1. d4 c5 2. d5 Nf6 3. c4 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O a6 10. a4 Bg4 11. Bf4 Re8 12. Nd2 Bxe2 13. Qxe2 Nh5 14. Be3 Nd7 15. Kh1 Qc7 16. f4 Nhf6 17. Qf3 c4 18. Rae1 Rab8 19. Ba7 Rbc8 20. Bd4 Qb8 21. a5 Qc7 22. Bxf6 Nxf6 23. e5 dxe5 24. fxe5 Rxe5 25. d6 Qxd6 26. Rxe5 Qxe5 27. Qxb7 Qc7 28. Qxa6 Ng4 29. Nf3 Rb8 30. Nd5 Qc5 31. Nb6 Nf2+ 32. Kg1 Ng4+ 33. Kh1 Nf2+ 34. Kg1 Ne4+ 35. Kh1 Qc6 36. Qa7 Rf8 37. Qe7 Bxb2 38. Nd7 Ba3 39. Qxe4 Qxd7 40. Qxc4 Bb2 41. Ng5 Kg7 42. a6 Bf6 43. Nxh7 Kxh7 44. Rxf6 Kg7 45. Rf1 Ra8 46. Ra1 Qd6 47. h3 Ra7 48. Qf1 Qc6 49. Ra5 Qb6 50. Ra4 Qc6 51. Qa1+ f6 52. Ra2 Qb6 53. Qf1 Qe6 54. Ra1 Qc6 55. Qd3 Qb6 56. Ra4 Qc6 57. Ra1 Qe6 58. Qb5 Qd6 59. Qc4 g5 60. Qc8 Qb4 61. Qc6 Qb2 62. Rf1 Rf7 63. Qd6 Qa2 64. Rc1 Qa5 65. Kh2 g4 66. Rc4 gxh3 67. Qg3+ Kf8 68. Rc8+ 1-0

