[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.11"]
[Round "1"]
[White "Behrensen, Jorge"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "C05"]
[EventDate "1958.03.11"]
[PlyCount "81"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ngf3 cxd4 8. cxd4 Qb6 9. Nb3 Bb4+ 10. Bd2 a5 11. Bxb4 Qxb4+ 12. Qd2 a4 13. Nc1 Nb6 14. Bd3 Nc4 15. Bxc4 dxc4 16. a3 Qxd2+ 17. Kxd2 Ne7 18. Ne2 Bd7 19. Nc3 Bc6 20. Rhc1 O-O-O 21. Ne2 Nf5 22. Kc3 Ne3 23. Rg1 Rd7 24. Kd2 Nf5 25. Kc3 b5 26. Ne1 Rhd8 27. Rd1 Ne3 28. Rc1 Kb7 29. Nc2 Nd5+ 30. Kd2 Ne7 31. g4 h5 32. gxh5 Nf5 33. Kc3 Be4 34. Nb4 Bf3 35. Ng3 Nxd4 36. Rcf1 Kb6 37. Rf2 Bb7 38. f5 Nf3 39. Rgf1 Nxe5 40. fxe6 fxe6 41. Re2 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.11"]
[Round "1"]
[White "Casas, Fernando"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "D76"]
[EventDate "1958.03.11"]
[PlyCount "81"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. Nf3 Nb6 7. O-O Nc6 8. e3 O-O 9. Nc3 a5 10. d5 Nb4 11. e4 c6 12. a3 Na6 13. dxc6 bxc6 14. Qc2 Be6 15. Rd1 Qc8 16. Nd4 Bg4 17. f3 Bd7 18. Be3 Nc4 19. Bf2 Rb8 20. Rab1 e5 21. Nb3 Bh6 22. Qe2 Be6 23. Nc5 Nxc5 24. Bxc5 Rd8 25. Rxd8+ Qxd8 26. Rd1 Qg5 27. b4 axb4 28. axb4 Bf8 29. Na4 Bxc5+ 30. Nxc5 Rxb4 31. Nxe6 fxe6 32. Bh3 Rb2 33. Bxe6+ Kf8 34. Bxc4 Rxe2 35. Bxe2 Qe3+ 36. Kf1 Ke7 37. Rd3 Qc1+ 38. Kg2 Qc2 39. Kf1 c5 40. Rd5 Ke6 41. h4 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.11"]
[Round "1"]
[White "Emma, Jaime"]
[Black "Panno, Oscar"]
[Result "0-1"]
[ECO "B25"]
[EventDate "1958.03.11"]
[PlyCount "86"]

1. Nc3 c5 2. e4 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5 7. Nd5 Nge7 8. Bg5 h6 9. Bf6 Bxf6 10. Nxf6+ Kf8 11. f4 Kg7 12. fxe5 dxe5 13. O-O Be6 14. Nc3 c4 15. Ncd5 cxd3 16. Qxd3 Ng8 17. Nxg8 Rxg8 18. Rad1 Rf8 19. Qe3 Qa5 20. a3 Rad8 21. h4 f6 22. c3 Rd7 23. Rd2 Qd8 24. b4 Qc8 25. h5 g5 26. c4 Qe8 27. b5 Nd4 28. Rxd4 exd4 29. Qxd4 Bxd5 30. exd5 b6 31. Qg4 Rd6 32. Qf5 Qxh5 33. Be4 Rh8 34. g4 Qe8 35. Re1 h5 36. Re2 hxg4 37. Bd3 Qh5 38. Re7+ Kf8 39. Qc8+ Kxe7 40. Qc7+ Rd7 41. d6+ Ke6 42. Bf5+ Kxf5 43. Qxd7+ Kg6 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.11"]
[Round "1"]
[White "Lombardy, William James"]
[Black "Pilnik, Herman"]
[Result "1/2-1/2"]
[ECO "E66"]
[EventDate "1958.03.11"]
[PlyCount "75"]

1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nc6 7. d5 Na5 8. Nfd2 c5 9. Nc3 e6 10. Qc2 exd5 11. cxd5 a6 12. b3 Re8 13. Bb2 b5 14. Rfe1 Ra7 15. a4 b4 16. Nd1 Rae7 17. Qd3 Bb7 18. Rb1 Qa8 19. Bxf6 Bxf6 20. Bf3 Qd8 21. Kg2 Bc8 22. Rh1 Bg7 23. h4 h5 24. Ne3 Bh6 25. Nef1 Re5 26. Rd1 Qf6 27. e3 R5e7 28. Rc1 Qf5 29. Qxf5 Bxf5 30. Be2 Bc8 31. Nc4 Nxc4 32. Bxc4 Bb7 33. Nh2 f5 34. Nf3 Bg7 35. Ng5 Bf6 36. Nh3 Be5 37. Rhd1 Kg7 38. Rc2 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.11"]
[Round "1"]
[White "Olivera, Alfredo"]
[Black "Foguelman, Alberto"]
[Result "1-0"]
[ECO "D13"]
[EventDate "1958.03.11"]
[PlyCount "139"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 e6 6. Bf4 Bd6 7. e3 Bxf4 8. exf4 a6 9. Bd3 Nc6 10. O-O O-O 11. Rc1 Qd6 12. g3 Rd8 13. Re1 Ne7 14. a3 Bd7 15. Ne5 Be8 16. Qb3 b5 17. Rc2 Nd7 18. Nxd7 Bxd7 19. Ne2 Rac8 20. Rec1 Nc6 21. Qc3 Qb8 22. Qd2 Qb6 23. b4 g6 24. Rc5 Ne7 25. Qe3 Qd6 26. Qe5 Qxe5 27. fxe5 Rxc5 28. Rxc5 Rc8 29. f4 Rc6 30. Kf2 Nc8 31. Rxc6 Bxc6 32. Nc3 Nb6 33. Ke3 Kf8 34. g4 Ke7 35. g5 Nc4+ 36. Bxc4 dxc4 37. Nd1 Bg2 38. Nf2 Kd7 39. Ng4 Bh3 40. Nf6+ Kc6 41. Kd2 Bf5 42. Kc3 Bb1 43. Nxh7 Bf5 44. Nf6 Bd3 45. h4 Be2 46. Ne4 Bd1 47. Nc5 Kb6 48. Ne4 Bf3 49. Nd6 Kc6 50. Nxf7 Be4 51. Nd6 Bd3 52. Ne8 Bb1 53. Nf6 Bf5 54. h5 gxh5 55. Nxh5 Bg6 56. Nf6 Bf5 57. d5+ exd5 58. Kd4 Bg6 59. Nxd5 Kd7 60. Nf6+ Ke6 61. Ne4 Kf5 62. Nc5 Kxf4 63. Nxa6 c3 64. Kxc3 Kxe5 65. Nc7 Kf5 66. Nxb5 Kxg5 67. Kd4 Kf6 68. Kc5 Ke7 69. a4 Kd7 70. a5 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.11"]
[Round "1"]
[White "Pelikan, Jorge"]
[Black "Letelier Martner, Rene"]
[Result "0-1"]
[ECO "A02"]
[EventDate "1958.03.11"]
[PlyCount "67"]

1. f4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. Na3 Nc6 7. d3 e5 8. e4 Qe7 9. c4 exf4 10. Bxf4 Nh5 11. Bg5 f6 12. Bc1 f5 13. Bg5 Bf6 14. Bxf6 Qxf6 15. Nb5 Qxb2 16. Ng5 a6 17. Nxc7 Qb6+ 18. c5 Qxc7 19. Bxh5 gxh5 20. Qb3+ Kh8 21. cxd6 Qg7 22. h4 h6 23. Nh3 f4 24. Nxf4 Rxf4 25. Rxf4 Qxa1+ 26. Rf1 Qg7 27. Rf7 Qd4+ 28. Kh1 Qa1+ 29. Kh2 Qe5+ 30. g3 Be6 31. Qxb7 Rb8 32. Rh7+ Kg8 33. Qc7 Rb2+ 34. Kh1 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.11"]
[Round "1"]
[White "Reinhardt, Enrique"]
[Black "Rossetto, Hector Decio"]
[Result "1-0"]
[ECO "C84"]
[EventDate "1958.03.11"]
[PlyCount "150"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. c3 Nf6 7. Re1 Be7 8. d3 O-O 9. Nbd2 b5 10. Bc2 Re8 11. Nf1 g6 12. h3 Qc8 13. d4 Bf8 14. Bg5 Bg7 15. Qd2 Nd8 16. Rad1 Bc6 17. Ng3 Qb7 18. d5 Bd7 19. Nh4 c6 20. Bh6 Bxh6 21. Qxh6 Rf8 22. dxc6 Bxc6 23. Rxd6 Ne6 24. Nhf5 Kh8 25. Ne3 Rad8 26. Rxd8 Rxd8 27. Qh4 Ng8 28. Nd5 Bxd5 29. exd5 Qxd5 30. Bb3 Qd2 31. Rd1 Qg5 32. Qxg5 Rxd1+ 33. Bxd1 Nxg5 34. Bb3 Kg7 35. h4 Ne6 36. Bxe6 fxe6 37. Ne4 Ne7 38. Nc5 a5 39. Nxe6+ Kf6 40. Nc7 b4 41. cxb4 axb4 42. Kf1 e4 43. Na6 Nc6 44. Ke2 Ke5 45. Ke3 b3 46. axb3 Nd4 47. g3 Nxb3 48. Nb8 h6 49. Nc6+ Kd6 50. Nd4 Nc5 51. b4 Nd3 52. Nc2 Ke5 53. f3 Nb2 54. fxe4 Nc4+ 55. Kd3 Nd6 56. Nd4 Nxe4 57. Nc6+ Kd5 58. Ne7+ Ke5 59. Nxg6+ Kd5 60. Nf4+ Ke5 61. Ne2 Nd6 62. Nc3 Nf5 63. Ne2 Nd6 64. Nd4 Ne4 65. Nc6+ Kd5 66. Ne7+ Ke5 67. Ng6+ Kd5 68. Nf4+ Ke5 69. Nh5 Nd6 70. g4 Nb5 71. Kc4 Nd6+ 72. Kc5 Ne4+ 73. Kc6 Nf2 74. b5 Nxg4 75. b6 Ke6 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.11"]
[Round "1"]
[White "Sanguineti, Raul"]
[Black "Sumar, Julio"]
[Result "1-0"]
[ECO "B63"]
[EventDate "1958.03.11"]
[PlyCount "77"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Bd7 8. Ndb5 Qa5 9. Bxf6 gxf6 10. Nxd6+ Bxd6 11. Qxd6 Rd8 12. Qf4 Ke7 13. O-O-O Qg5 14. Qxg5 fxg5 15. Be2 Ne5 16. h4 h6 17. Rh2 a6 18. hxg5 hxg5 19. Rdh1 Rxh2 20. Rxh2 Bc6 21. Rh5 Kf6 22. f3 Ng6 23. g3 Rd4 24. Rh1 Ke5 25. Re1 Kf6 26. Nd1 Ne5 27. Nf2 Rd8 28. Rd1 Rh8 29. Rh1 Rd8 30. Rh6+ Kg7 31. Rh5 Kf6 32. Nd3 Bb5 33. Rh6+ Kg7 34. Nxe5 Bxe2 35. Rh1 f6 36. Re1 Bb5 37. Nd3 Rh8 38. Nc5 e5 39. Nxb7 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.12"]
[Round "2"]
[White "Foguelman, Alberto"]
[Black "Sanguineti, Raul"]
[Result "0-1"]
[ECO "D82"]
[EventDate "1958.03.11"]
[PlyCount "38"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Be5 dxc4 6. e4 O-O 7. Bxc4 Nc6 8. f4 Ng4 9. Bxg7 Kxg7 10. d5 Ne3 11. Qa4 Nd4 12. Kd2 Ng4 13. Be2 e5 14. Bxg4 Bxg4 15. fxe5 c5 16. h4 Qe7 17. Re1 Qxe5 18. Nge2 b5 19. Nxb5 Nxe2 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.12"]
[Round "2"]
[White "Larsen, Bent"]
[Black "Behrensen, Jorge"]
[Result "1-0"]
[ECO "D94"]
[EventDate "1958.03.11"]
[PlyCount "55"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Nbd7 8. cxd5 Nxd5 9. e4 Nc7 10. Bg5 Nb6 11. h3 Ne6 12. Be3 Qc7 13. Qc1 f5 14. exf5 Rxf5 15. Re1 Nf4 16. Ne5 Nxe2+ 17. Rxe2 Be6 18. Bf4 Qc8 19. Bh6 Nd5 20. Nxd5 Bxd5 21. Bxg7 Kxg7 22. Ng4 e6 23. Qh6+ Kh8 24. Ne3 Rf7 25. Nxd5 exd5 26. Rae1 Qf5 27. Re8+ Rf8 28. R1e7 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.12"]
[Round "2"]
[White "Letelier Martner, Rene"]
[Black "Eliskases, Erich"]
[Result "0-1"]
[ECO "B14"]
[EventDate "1958.03.11"]
[PlyCount "86"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. a3 O-O 8. c5 Ne4 9. Qc2 f5 10. b4 Bf6 11. Bb2 Nc6 12. Rd1 Bd7 13. Be2 Be8 14. O-O Bh5 15. Na2 Qe8 16. Nc1 Rc8 17. Ne1 Bd8 18. f3 Nf6 19. Bd3 Bc7 20. Qe2 Bf7 21. Bb5 a6 22. Bxc6 Qxc6 23. Ned3 Nd7 24. Qe3 Be8 25. Ne2 Rf7 26. Ne5 Nxe5 27. dxe5 Rf8 28. Bd4 Qd7 29. Ra1 Qf7 30. f4 Bb5 31. Rfb1 Bd8 32. Nc3 Bc4 33. Na4 g5 34. Nb6 Bxb6 35. cxb6 gxf4 36. Qxf4 Kh8 37. Rc1 Rg8 38. Rc3 Rg4 39. Qd2 Rcg8 40. g3 f4 41. Bf2 Qh5 42. a4 d4 43. Bxd4 fxg3 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.12"]
[Round "2"]
[White "Panno, Oscar"]
[Black "Olivera, Alfredo"]
[Result "1-0"]
[ECO "A84"]
[EventDate "1958.03.11"]
[PlyCount "53"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nd7 5. Nf3 f5 6. Qc2 Qf6 7. b3 Bd6 8. Bb2 Ne7 9. Bd3 a6 10. O-O-O b5 11. Ne5 Nxe5 12. dxe5 Bxe5 13. f4 Bxc3 14. Bxc3 Qf7 15. Qb2 O-O 16. c5 Ng6 17. h4 h5 18. Qe2 Ne7 19. Rh3 g6 20. Rg3 Kh7 21. Rg5 Kh6 22. Rh1 Bd7 23. g4 fxg4 24. Be5 Nf5 25. Rxg4 hxg4 26. Qxg4 Be8 27. h5 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.12"]
[Round "2"]
[White "Pelikan, Jorge"]
[Black "Emma, Jaime"]
[Result "0-1"]
[ECO "A30"]
[EventDate "1958.03.11"]
[PlyCount "56"]

1. c4 c5 2. b3 Nc6 3. g3 Nf6 4. Bg2 d5 5. cxd5 Nxd5 6. Bb2 e5 7. d3 Be6 8. Nd2 Qd7 9. a3 Be7 10. Ngf3 f6 11. Rc1 Rc8 12. O-O O-O 13. Ne4 b6 14. e3 Nc7 15. Qc2 Na5 16. Ned2 Rfd8 17. Ne1 b5 18. f4 exf4 19. gxf4 Nd5 20. Rf3 Nb6 21. e4 Nc6 22. Rf2 c4 23. f5 Bf7 24. bxc4 bxc4 25. Nxc4 Nxc4 26. dxc4 Bc5 27. Bf1 Qd2 28. Qxd2 Rxd2 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.12"]
[Round "2"]
[White "Pilnik, Herman"]
[Black "Casas, Fernando"]
[Result "1/2-1/2"]
[ECO "B34"]
[EventDate "1958.03.11"]
[PlyCount "60"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f4 O-O 8. e5 Ne8 9. Qf3 Nxd4 10. Bxd4 d6 11. O-O-O Qa5 12. Qd5 Qc7 13. exd6 Nxd6 14. Bxg7 Kxg7 15. Qd4+ f6 16. Nd5 Qa5 17. Nxe7 Bg4 18. Qd5 Qc7 19. Be2 Bxe2 20. Qxd6 Qxd6 21. Rxd6 Rfd8 22. Rxd8 Rxd8 23. Re1 Bc4 24. b3 Bf7 25. c4 Kf8 26. Nd5 Bxd5 27. Rd1 Ke7 28. cxd5 Rc8+ 29. Kb1 Rc5 30. Re1+ Kd7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.12"]
[Round "2"]
[White "Rossetto, Hector Decio"]
[Black "Lombardy, William James"]
[Result "0-1"]
[ECO "D48"]
[EventDate "1958.03.11"]
[PlyCount "60"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 d5 5. Nc3 dxc4 6. Bxc4 a6 7. O-O b5 8. Bd3 Bb7 9. Qe2 Nbd7 10. Rd1 Qc7 11. e4 cxd4 12. Nxd4 Bc5 13. Nb3 Bb6 14. Bg5 Qe5 15. Bh4 O-O 16. Bg3 Qg5 17. e5 Nh5 18. Bxh7+ Kxh7 19. Rxd7 Nxg3 20. hxg3 Rab8 21. g4 Qf4 22. Rad1 Rh8 23. Qd2 Qxg4 24. Qc2+ Kg8 25. Rxb7 Rxb7 26. Ne4 Rb8 27. Nbc5 Qh5 28. Ng3 Qxe5 29. Nd7 Qxg3 30. Nxb6 Qh4 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.12"]
[Round "2"]
[White "Sumar, Julio"]
[Black "Reinhardt, Enrique"]
[Result "0-1"]
[ECO "C65"]
[EventDate "1958.03.11"]
[PlyCount "112"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. Qe2 Qe7 6. O-O O-O 7. d3 d6 8. Nbd2 Bg4 9. b4 Bb6 10. Bxc6 bxc6 11. Nc4 Nd7 12. a4 a6 13. h3 Bh5 14. Nxb6 cxb6 15. Qe3 Bg6 16. g4 Rfe8 17. Ne1 d5 18. f3 a5 19. bxa5 Rxa5 20. Ba3 Qe6 21. Bb4 Ra6 22. exd5 Qxd5 23. c4 Qe6 24. Rf2 c5 25. Bc3 Rea8 26. Rfa2 Qd6 27. Ra3 f6 28. Qe2 Nb8 29. a5 Nc6 30. Qa2 bxa5 31. Bd2 Qd4+ 32. Kg2 Rb8 33. Bc3 Qe3 34. Qf2 Qxf2+ 35. Kxf2 Rba8 36. Bd2 a4 37. Be3 Nd4 38. Bxd4 exd4 39. Rb1 Be8 40. h4 g5 41. h5 Bc6 42. f4 Re8 43. Ng2 Kf7 44. f5 Ke7 45. Ne1 Kd6 46. Nc2 Raa8 47. Ra2 Re5 48. Re1 Rb8 49. Re2 Rxe2+ 50. Kxe2 Ke5 51. Ra1 Kf4 52. Rf1+ Kxg4 53. h6 Rb2 54. Kd2 a3 55. Kc1 Rb3 56. Kd2 a2 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.13"]
[Round "3"]
[White "Behrensen, Jorge"]
[Black "Pilnik, Herman"]
[Result "0-1"]
[ECO "A07"]
[EventDate "1958.03.11"]
[PlyCount "74"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O d5 5. c4 dxc4 6. Na3 O-O 7. Nxc4 Nc6 8. d3 Nd5 9. Rb1 h6 10. Bd2 Kh7 11. Ne3 Be6 12. Qa4 Qd7 13. Nxd5 Bxd5 14. Bc3 e5 15. Qa3 a5 16. b3 Bxf3 17. exf3 Qxd3 18. Rbc1 Rad8 19. Rfe1 f5 20. Bf1 Qd5 21. Be2 Qd7 22. Qb2 b6 23. f4 Nd4 24. Bxd4 exd4 25. Bd3 Rfe8 26. Re2 Re7 27. Rce1 Rde8 28. h4 h5 29. Qc2 Rxe2 30. Rxe2 Rxe2 31. Qxe2 c6 32. a4 Qd5 33. g4 hxg4 34. h5 Qd6 35. hxg6+ Kh6 36. Bxf5 Qxf4 37. Bd3 Be5 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.13"]
[Round "3"]
[White "Casas, Fernando"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "E37"]
[EventDate "1958.03.11"]
[PlyCount "137"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 Nc6 8. e3 e5 9. cxd5 Qxd5 10. Bc4 Qa5+ 11. b4 Nxb4 12. Qxe4 Nc2+ 13. Ke2 Qe1+ 14. Kf3 Nxa1 15. Bb2 Be6 16. d5 O-O-O 17. dxe6 fxe6 18. Bxe6+ Kb8 19. Bxe5 Rhf8+ 20. Kg3 Qxf2+ 21. Kh3 Rd1 22. Bg4 Rxg1 23. Bg3 Qxg3+ 24. Kxg3 Rxh1 25. Qe7 Rhf1 26. Bf3 Rc8 27. Qxg7 a6 28. h4 Nb3 29. Qb2 Nc5 30. h5 Rg8+ 31. Kh2 h6 32. Qc3 Rxf3 33. gxf3 Nd7 34. f4 c5 35. Qc4 Rc8 36. a4 Nb6 37. Qb3 Rc6 38. a5 c4 39. Qd1 Nc8 40. f5 c3 41. Qc2 Nd6 42. f6 Nf7 43. Kg3 Ng5 44. Kg4 Rxf6 45. Qxc3 Rc6 46. Qd4 Re6 47. Qd8+ Ka7 48. Kf5 Rc6 49. e4 Nf7 50. Qd4+ Kb8 51. e5 Ng5 52. Qd8+ Ka7 53. Qe8 Nf3 54. Qf8 Ng5 55. Qg8 Nf3 56. Ke4 Ng5+ 57. Kd5 Nh3 58. Qf8 Ng5 59. Qg8 Nh3 60. Qe8 Nf4+ 61. Ke4 Ne6 62. Qg8 Ng5+ 63. Kf5 Nf3 64. Qd8 Ng5 65. Qe8 Nf3 66. Qd7 Ng5 67. Qd4+ Kb8 68. Qd8+ Ka7 69. Qe8 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.13"]
[Round "3"]
[White "Eliskases, Erich"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "A96"]
[EventDate "1958.03.11"]
[PlyCount "150"]

1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. c4 O-O 6. O-O d6 7. b3 Qe8 8. Bb2 a5 9. a3 Nbd7 10. Nbd2 Qh5 11. Re1 Ne4 12. e3 Ndf6 13. Nxe4 fxe4 14. Nd2 Qg6 15. f3 exf3 16. Nxf3 Ng4 17. e4 e5 18. Bc3 Bg5 19. Nxg5 Qxg5 20. Ra2 Qh6 21. Bf3 exd4 22. Bxd4 Ne5 23. Bxe5 dxe5 24. Qd3 Be6 25. a4 Rad8 26. Qe3 Qxe3+ 27. Rxe3 Bh3 28. Ra1 Rd2 29. Rb1 h5 30. Bxh5 Rg2+ 31. Kh1 Rff2 32. Bf3 Rxh2+ 33. Kg1 g5 34. Rbe1 Rb2 35. R1e2 Rhxe2 36. Bxe2 Be6 37. Kf1 Kf8 38. Ke1 Ke7 39. Kd1 Kd6 40. Kc1 Ra2 41. Kb1 Rd2 42. Kc1 Rd4 43. Kc2 Kc5 44. Kc3 c6 45. Bf3 Rd8 46. Be2 Rh8 47. Bf3 Rh3 48. Bg2 Rh2 49. Bf3 Bf7 50. Bg4 Bh5 51. Bc8 Be2 52. Bxb7 Bg4 53. Rd3 Rg2 54. Bxc6 Kxc6 55. b4 axb4+ 56. Kxb4 Rb2+ 57. Kc3 Re2 58. a5 Rxe4 59. a6 Be6 60. Kb2 Rxc4 61. Ra3 Rb4+ 62. Kc3 Rb8 63. a7 Ra8 64. Ra6+ Kd5 65. Kb4 Bd7 66. Ra1 e4 67. Kc3 Bb5 68. Kd2 Kd4 69. Ra3 g4 70. Rb3 Ba6 71. Rb4+ Bc4 72. Ra4 e3+ 73. Kc2 e2 74. Kd2 Kc5 75. Ra1 Kb6 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.13"]
[Round "3"]
[White "Emma, Jaime"]
[Black "Letelier Martner, Rene"]
[Result "1/2-1/2"]
[ECO "C48"]
[EventDate "1958.03.11"]
[PlyCount "60"]

1. Nc3 Nf6 2. e4 e5 3. Nf3 Nc6 4. Bb5 Nd4 5. Be2 d6 6. d3 Nxe2 7. Qxe2 g6 8. h3 Bg7 9. Be3 O-O 10. Rd1 c6 11. d4 exd4 12. Bxd4 Re8 13. O-O d5 14. Rfe1 Bf5 15. e5 Ne4 16. Qe3 Nd6 17. Qc1 Ne4 18. Nxe4 Bxe4 19. Ng5 Bf5 20. g4 Be6 21. f4 Qc8 22. Qe3 b6 23. Qg3 c5 24. Bf2 f6 25. Nxh7 Kxh7 26. Qh4+ Kg8 27. exf6 Bf8 28. f5 Bf7 29. Qg5 Kh7 30. Qh4+ Kg8 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.13"]
[Round "3"]
[White "Lombardy, William James"]
[Black "Sumar, Julio"]
[Result "1-0"]
[ECO "D36"]
[EventDate "1958.03.11"]
[PlyCount "125"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 h6 7. Bh4 Bd6 8. e3 O-O 9. Bd3 Re8 10. Nf3 Nbd7 11. O-O Qc7 12. Rfc1 a6 13. Rab1 Qd8 14. b4 Qe7 15. Qb3 Qe6 16. Na4 Ne4 17. Bxe4 Qxe4 18. Bg3 Re6 19. Rb2 Bxg3 20. hxg3 Re8 21. Nc5 Qe7 22. a4 Nb6 23. Nd2 Bf5 24. Ra2 Nc4 25. Nxc4 dxc4 26. Qxc4 b6 27. Nb3 Be6 28. Qc3 Bd5 29. Re2 Qe4 30. f3 Qg6 31. g4 h5 32. gxh5 Qxh5 33. Nd2 f5 34. Nc4 Rab8 35. Ne5 Re6 36. Ree1 Rh6 37. Kf2 Qh4+ 38. Ke2 Qg3 39. Rg1 Re8 40. Qe1 Qg5 41. Kf2 Qe7 42. Qc3 Rh2 43. Rc2 Qh4+ 44. Kf1 Qg5 45. Re2 b5 46. a5 Qg3 47. Rf2 Rh6 48. Qb2 Rhe6 49. Rh1 Rxe5 50. dxe5 Bc4+ 51. Ke1 Rxe5 52. Qd4 Rd5 53. Qf4 Rd1+ 54. Kxd1 Qxf2 55. Qb8+ Kf7 56. Qc7+ Kf6 57. Qd6+ Be6 58. Qd2 Qg3 59. Rh3 Qc7 60. Rh8 Kg6 61. Qd8 Qb7 62. Qd6 Qf7 63. Rf8 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.13"]
[Round "3"]
[White "Olivera, Alfredo"]
[Black "Pelikan, Jorge"]
[Result "1/2-1/2"]
[ECO "B27"]
[EventDate "1958.03.11"]
[PlyCount "131"]

1. e4 c5 2. Nf3 b6 3. d4 cxd4 4. Nxd4 Bb7 5. Nc3 g6 6. Bf4 Bg7 7. Ndb5 Na6 8. Be2 Nf6 9. e5 Ne4 10. Nxe4 Bxe4 11. Bf3 Bxf3 12. Qxf3 O-O 13. O-O Qc8 14. Nc3 Nc7 15. Rad1 Ne6 16. Bg3 Rb8 17. Qe2 Re8 18. Nd5 Qc6 19. c3 b5 20. f4 Qc4 21. Qf2 Qc5 22. Qxc5 Nxc5 23. Bf2 Ne6 24. a3 Rb7 25. g3 Nd8 26. Bc5 Nc6 27. Rfe1 e6 28. Ne3 f6 29. exf6 Bxf6 30. Ng4 Bg7 31. Bd6 Na5 32. Ne5 Bxe5 33. fxe5 Nc4 34. Re2 Nxd6 35. Rxd6 Rf8 36. Rf2 Rf7 37. Kg2 Rc7 38. Rf4 Kf8 39. Kf3 Ke7 40. Ra6 Rf5 41. Rxf5 gxf5 42. Rd6 Rc5 43. Kf4 h6 44. h3 Kd8 45. g4 fxg4 46. hxg4 a5 47. Rd4 Ke7 48. Ke4 Rc8 49. Ke3 Rg8 50. a4 bxa4 51. Rxa4 Rb8 52. b4 axb4 53. Rxb4 Rc8 54. Kd3 Rc5 55. Re4 Rd5+ 56. Kc2 Kf7 57. c4 Ra5 58. Kb3 Ke7 59. Kb4 Ra1 60. Kc5 Kd8 61. g5 hxg5 62. Rg4 Kc7 63. Rxg5 Re1 64. Rh5 Rg1 65. Kb5 Rg4 66. Kc5 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.13"]
[Round "3"]
[White "Reinhardt, Enrique"]
[Black "Foguelman, Alberto"]
[Result "0-1"]
[ECO "E50"]
[EventDate "1958.03.11"]
[PlyCount "80"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 Nc6 6. Nf3 d6 7. Bd2 e5 8. d5 Nb8 9. Qc2 Qe7 10. a3 Bxc3 11. Bxc3 Nbd7 12. Be2 Ne8 13. e4 g6 14. O-O f5 15. b4 f4 16. Ne1 Qh4 17. f3 g5 18. Nd3 Ndf6 19. Be1 Qh6 20. Nf2 Rf7 21. c5 Rg7 22. Rc1 Qg6 23. g4 fxg3 24. hxg3 Nh5 25. Kg2 Nf4+ 26. Kg1 h5 27. Bb5 Nf6 28. cxd6 cxd6 29. Kh1 g4 30. fxg4 hxg4 31. Kg1 a6 32. gxf4 g3 33. Nd1 g2 34. Rf2 axb5 35. fxe5 Qg3 36. Rxg2 Qxe1+ 37. Kh2 Ng4+ 38. Rxg4 Bxg4 39. Nf2 Qe3 40. Rg1 Qh6+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.13"]
[Round "3"]
[White "Sanguineti, Raul"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[ECO "C84"]
[EventDate "1958.03.11"]
[PlyCount "135"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Nc3 b5 7. Bb3 d6 8. Nd5 Bb7 9. Nxf6+ Bxf6 10. Bd5 O-O 11. c3 Qc8 12. d4 Na5 13. Bxb7 Qxb7 14. Qc2 exd4 15. cxd4 c5 16. e5 dxe5 17. dxe5 Be7 18. Ng5 Bxg5 19. Bxg5 Rfe8 20. Rfe1 c4 21. Rad1 Nc6 22. Qf5 Re6 23. Qg4 Rg6 24. h4 h6 25. e6 Re8 26. Re2 Rexe6 27. Rxe6 Rxe6 28. Be3 Qe7 29. Rd5 Qf6 30. Rd2 Ne5 31. Qd4 Qg6 32. Qd5 Re8 33. g3 h5 34. a4 Qg4 35. Kg2 bxa4 36. Rd4 Qe6 37. Qxe6 Rxe6 38. Bf4 Nd3 39. Rxc4 Nxb2 40. Rb4 Nd3 41. Rxa4 Nxf4+ 42. gxf4 g6 43. Ra5 Rc6 44. Kf3 Kf8 45. Ke4 Ke7 46. f3 Re6+ 47. Kd4 Rd6+ 48. Ke4 f5+ 49. Ke5 Rb6 50. Ra4 Kd7 51. Ra1 Kc6 52. Rc1+ Kb7 53. Ra1 Rb4 54. Kf6 Rb6+ 55. Ke5 Rb2 56. Kf6 Rg2 57. Kg7 Rg3 58. Kh6 Ka7 59. Kg7 Kb6 60. Rb1+ Kc5 61. Ra1 Kb5 62. Rb1+ Kc4 63. Ra1 Kd3 64. Rxa6 Ke3 65. Rxg6 Kxf3 66. Rg5 Rg4 67. Kg6 Rxh4 68. Rxf5 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.15"]
[Round "4"]
[White "Emma, Jaime"]
[Black "Olivera, Alfredo"]
[Result "1/2-1/2"]
[ECO "A13"]
[EventDate "1958.03.11"]
[PlyCount "56"]

1. c4 e6 2. Nf3 d5 3. g3 c6 4. b3 Nf6 5. Bb2 Bd6 6. Bg2 Nbd7 7. O-O e5 8. cxd5 cxd5 9. d3 O-O 10. Nc3 a6 11. e4 d4 12. Ne2 Re8 13. Rc1 Nc5 14. Nexd4 exd4 15. e5 Bf5 16. exd6 Nxd3 17. Rc2 Nxb2 18. Rxb2 Qxd6 19. Qxd4 Rad8 20. Qxd6 Rxd6 21. Nh4 Be4 22. Rc1 g6 23. Bxe4 Rxe4 24. Rc7 Rd7 25. Rxd7 Nxd7 26. Rc2 Re1+ 27. Kg2 Ra1 28. Rc7 Ne5 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.15"]
[Round "4"]
[White "Foguelman, Alberto"]
[Black "Lombardy, William James"]
[Result "1/2-1/2"]
[ECO "B55"]
[EventDate "1958.03.11"]
[PlyCount "128"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+ Nbd7 7. Nf5 d5 8. exd5 a6 9. Ba4 b5 10. Bb3 Nb6 11. Ne3 Bc5 12. Nc3 O-O 13. O-O Bb7 14. Ne4 Bxe3+ 15. Bxe3 Nfxd5 16. Bc5 Re8 17. Nd6 Qc7 18. Nxb7 Qxb7 19. Qe2 Rac8 20. Bf2 Nf4 21. Qe4 Qxe4 22. fxe4 Nc4 23. a4 b4 24. Rad1 Na5 25. Bb6 Nxb3 26. cxb3 f6 27. Rd2 Ne6 28. Re1 Rc6 29. a5 Rec8 30. Kf2 Rc2 31. Ree2 Rxd2 32. Rxd2 Nc5 33. Ke3 Nxb3 34. Rd8+ Rxd8 35. Bxd8 Nd4 36. Bb6 Ne6 37. Kd3 Kf7 38. Kc4 Ke7 39. Be3 Kd6 40. Kxb4 h5 41. Kc4 Kc6 42. b4 g6 43. Bd2 Nd4 44. Bh6 Nb5 45. Bf8 f5 46. Bg7 Nd6+ 47. Kb3 Nf7 48. exf5 gxf5 49. Kc3 Kb5 50. Bf6 f4 51. Bg7 Kc6 52. Bf6 Kd5 53. b5 axb5 54. a6 Kc6 55. Kb4 e4 56. a7 Kb7 57. Kxb5 f3 58. gxf3 exf3 59. Bh4 Ne5 60. Kc5 Ng4 61. Kd4 f2 62. Bxf2 Nxf2 63. Ke3 Nh3 64. Kf3 Kxa7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.15"]
[Round "4"]
[White "Letelier Martner, Rene"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "E60"]
[EventDate "1958.03.11"]
[PlyCount "84"]

1. e3 Nf6 2. Nf3 d6 3. c4 g6 4. b3 Bg7 5. Bb2 O-O 6. d4 c5 7. Be2 Qa5+ 8. Qd2 Qxd2+ 9. Nbxd2 Bf5 10. O-O Nc6 11. Rfd1 a5 12. a4 Nd7 13. h3 cxd4 14. Nxd4 Nc5 15. g4 Bd3 16. Bf3 Ra6 17. Rdc1 Rb6 18. Bd1 f5 19. Bc3 f4 20. Nxc6 bxc6 21. Bxg7 Kxg7 22. exf4 Rxf4 23. Rc3 Rb8 24. Ra2 Rbf8 25. f3 Na6 26. Nf1 Bxf1 27. Kxf1 Rd4 28. Ke2 c5 29. Rd2 e5 30. Bc2 h5 31. gxh5 gxh5 32. Be4 Kf6 33. Rxd4 cxd4 34. Rc1 Rg8 35. Kf2 Nc5 36. Rb1 Rb8 37. Bc2 Rb7 38. Rg1 Rg7 39. Rd1 h4 40. Rb1 Rg3 41. b4 axb4 42. Rxb4 Rxh3 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.15"]
[Round "4"]
[White "Panno, Oscar"]
[Black "Reinhardt, Enrique"]
[Result "1/2-1/2"]
[ECO "E70"]
[EventDate "1958.03.11"]
[PlyCount "95"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Bd3 e6 7. Nge2 exd5 8. cxd5 a6 9. a4 b6 10. O-O Qc7 11. b3 Nbd7 12. Bb2 Bb7 13. Qd2 O-O 14. Rac1 Rfe8 15. f3 Qd8 16. Kh1 Qe7 17. Rce1 Ne5 18. Bb1 b5 19. f4 Neg4 20. Ng1 b4 21. Nd1 Bh6 22. Nf3 Nh5 23. g3 a5 24. Bd3 Ne5 25. Bb5 Nxf3 26. Rxf3 Red8 27. Qd3 Nf6 28. Rff1 Bg7 29. Kg1 Ne8 30. Bxg7 Kxg7 31. Ne3 Bc8 32. Nc4 Bh3 33. Rf2 Nf6 34. Bc6 Ra7 35. Rfe2 Ng4 36. Qd2 f6 37. Qb2 h5 38. e5 dxe5 39. fxe5 fxe5 40. Nxe5 Qf6 41. Nxg4 Qxb2 42. Rxb2 Bxg4 43. Rc2 Rf7 44. Rxc5 Rf3 45. Rxa5 Rxb3 46. Ra7+ Kh6 47. Rb7 Bh3 48. Rf7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.15"]
[Round "4"]
[White "Pelikan, Jorge"]
[Black "Sanguineti, Raul"]
[Result "0-1"]
[ECO "A03"]
[EventDate "1958.03.11"]
[PlyCount "90"]

1. f4 d5 2. Nf3 g6 3. e3 Bg7 4. Be2 Nf6 5. O-O O-O 6. d3 b5 7. Qe1 Bb7 8. a4 c6 9. Qh4 e6 10. Nc3 b4 11. Nd1 Nbd7 12. Nf2 c5 13. g4 Ne8 14. Qh3 Nd6 15. Rd1 f6 16. e4 Qe7 17. Re1 c4 18. exd5 Bxd5 19. dxc4 Nxc4 20. Bd3 Nc5 21. f5 Nxd3 22. cxd3 Na5 23. Be3 Nb3 24. Rad1 Qd7 25. Ne4 exf5 26. gxf5 Qxf5 27. Qxf5 gxf5 28. Ned2 Rfe8 29. Nh4 Nxd2 30. Bxd2 Bb3 31. Rc1 Bf8 32. a5 Rxe1+ 33. Bxe1 Rd8 34. Bf2 a6 35. Nxf5 Rxd3 36. Kf1 Rd2 37. Rc6 Rxb2 38. Rxa6 Bc4+ 39. Kg1 b3 40. Ne3 Bd3 41. Rb6 Be4 42. Bg3 Bc5 43. Rb8+ Kf7 44. Bf4 Bd3 45. h4 Be4 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.15"]
[Round "4"]
[White "Pilnik, Herman"]
[Black "Eliskases, Erich"]
[Result "0-1"]
[ECO "C88"]
[EventDate "1958.03.11"]
[PlyCount "84"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. a4 b4 11. Nbd2 O-O 12. Re1 Rb8 13. h3 Be6 14. d4 bxc3 15. bxc3 cxd4 16. cxd4 Qc7 17. d5 Bc8 18. Nb3 Nd7 19. Nxa5 Qxa5 20. Bd2 Qc7 21. Ra3 Nc5 22. Nh2 f5 23. exf5 Bxf5 24. Bxf5 Rxf5 25. Qg4 Rbf8 26. Bh6 Bd8 27. Rg3 R5f7 28. Nf3 Nd3 29. Re4 Kh8 30. Rc4 Qb7 31. Be3 Nf4 32. Nd2 Nxd5 33. Kh2 Nxe3 34. fxe3 d5 35. Rb4 Qe7 36. Rb8 e4 37. Rxd8 Rxd8 38. Nb3 Rf6 39. Qh5 Qd6 40. Nd4 Rdf8 41. Ne2 Rh6 42. Qg4 Rg6 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.15"]
[Round "4"]
[White "Rossetto, Hector Decio"]
[Black "Behrensen, Jorge"]
[Result "1-0"]
[ECO "B88"]
[EventDate "1958.03.11"]
[PlyCount "41"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. a3 Qc7 8. Ba2 Nc6 9. O-O Be7 10. Kh1 Bd7 11. f4 O-O 12. f5 Nxd4 13. Qxd4 Ne8 14. fxe6 fxe6 15. Rxf8+ Bxf8 16. Bg5 Qa5 17. Nd5 Rb8 18. Rf1 h6 19. Qf2 hxg5 20. Qxf8+ Kh7 21. Ne7 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.15"]
[Round "4"]
[White "Sumar, Julio"]
[Black "Casas, Fernando"]
[Result "0-1"]
[ECO "B34"]
[EventDate "1958.03.11"]
[PlyCount "166"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 Nf6 7. c4 d6 8. Nc3 Bg7 9. Be2 O-O 10. Qd1 Rb8 11. O-O Nd7 12. Re1 Ba6 13. Qc2 Bd4 14. Bf1 Ne5 15. Nd1 Qa5 16. Bd2 Qc5 17. Rc1 Ng4 18. Bc3 Qe5 19. g3 Bxc3 20. Qxc3 Qh5 21. h3 Ne5 22. Kg2 Bc8 23. g4 Qh6 24. Qe3 Qxe3 25. Rxe3 c5 26. f4 Nc6 27. f5 Ne5 28. b3 Bb7 29. Kg3 Kg7 30. Nf2 g5 31. Nd3 Rfd8 32. Rd1 Nc6 33. Bg2 f6 34. Nc1 a5 35. a4 Ba6 36. Red3 Nd4 37. Kf2 Rb6 38. Rc3 Rdb8 39. Rdd3 Rb4 40. Ke3 Rh8 41. Ne2 Nc6 42. Kf2 Ne5 43. Re3 h5 44. Bf3 hxg4 45. Bxg4 Rh4 46. Kg3 Rb8 47. Ng1 Rbh8 48. Nf3 Nxg4 49. hxg4 Rh1 50. Kg2 Bb7 51. Kg3 Rb1 52. Rc2 Rhh1 53. Rh2 Rhc1 54. Ra2 Bc6 55. Kf2 Rf1+ 56. Kg2 Kf7 57. Rf2 Rfc1 58. Kg3 Ra1 59. Rb2 Rd1 60. Rh2 Ra3 61. Rhe2 Rb1 62. Nd2 Rb2 63. Kf3 Raa2 64. Rd3 Ra3 65. Ke3 Ra1 66. Kf2 Rd1 67. Ke3 Ra2 68. Rf2 Re1+ 69. Re2 Rxe2+ 70. Kxe2 Bxe4 71. Rh3 Ke8 72. Ke3 Bc6 73. Rg3 Kd7 74. Rg1 Ra3 75. Ke2 d5 76. cxd5 Bxd5 77. Rc1 Kd6 78. Kd3 Bxb3 79. Rc3 c4+ 80. Kd4 Rxa4 81. Ne4+ Kc6 82. Nc5 Rb4 83. Re3 c3+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.16"]
[Round "5"]
[White "Behrensen, Jorge"]
[Black "Sumar, Julio"]
[Result "1/2-1/2"]
[ECO "B67"]
[EventDate "1958.03.11"]
[PlyCount "111"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. Be2 h6 10. Be3 Qc7 11. f4 Be7 12. Bf3 O-O 13. Nb3 Na5 14. Nxa5 Qxa5 15. Kb1 Qc7 16. g4 Bc6 17. h4 d5 18. exd5 Rfd8 19. Qg2 Nxd5 20. Nxd5 Bxd5 21. Bxd5 Rxd5 22. Rxd5 exd5 23. g5 h5 24. Qxd5 Rc8 25. Qe4 Qc6 26. Qxc6 Rxc6 27. Re1 Kh7 28. Bd4 Re6 29. Rxe6 fxe6 30. Be5 Bc5 31. Kc1 Bf2 32. Kd2 Bxh4 33. Ke2 Kg6 34. Kf3 Be1 35. Ke2 Bb4 36. a3 Bf8 37. Kf3 Kf5 38. c4 g6 39. b4 Be7 40. Bc7 Bf8 41. c5 Bg7 42. a4 Bd4 43. Bb6 e5 44. a5 h4 45. b5 e4+ 46. Kg2 Bxc5 47. bxa6 bxa6 48. Bxc5 Kxf4 49. Be7 e3 50. Kh3 e2 51. Bb4 Kxg5 52. Be1 Kf4 53. Kxh4 g5+ 54. Kh3 Kf3 55. Kh2 g4 56. Bg3 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.16"]
[Round "5"]
[White "Casas, Fernando"]
[Black "Foguelman, Alberto"]
[Result "1/2-1/2"]
[ECO "A85"]
[EventDate "1958.03.11"]
[PlyCount "91"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Qe7 5. Nf3 d6 6. a3 Bxc3+ 7. Qxc3 Ne4 8. Qc2 f5 9. b4 b6 10. g3 Bb7 11. Bg2 Nf6 12. O-O Be4 13. Qc3 Nbd7 14. Bb2 O-O 15. Nd2 Bxg2 16. Kxg2 e5 17. dxe5 Nxe5 18. Rfe1 Qe6 19. f4 Neg4 20. e4 Rae8 21. h3 Nh6 22. e5 dxe5 23. Rxe5 Qc6+ 24. Qf3 Qxf3+ 25. Nxf3 Nf7 26. Ree1 Ne4 27. Rad1 Nfd6 28. Ne5 a6 29. Kf3 Re6 30. Bd4 c5 31. Be3 Rc8 32. bxc5 Nxc5 33. Rd5 Nde4 34. Red1 Ree8 35. Bd4 Rc7 36. g4 fxg4+ 37. hxg4 Rf8 38. Bxc5 Nxc5 39. Rd6 Re7 40. R1d5 g5 41. Nd3 gxf4 42. Nxc5 Re3+ 43. Kf2 bxc5 44. Rg5+ Kh8 45. Rxa6 Rb8 46. Rxc5 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.16"]
[Round "5"]
[White "Eliskases, Erich"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "C90"]
[EventDate "1958.03.11"]
[PlyCount "82"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5 11. Nbd2 Qc7 12. Nf1 Bb7 13. Ng3 g6 14. Bh6 Rfe8 15. h3 Kh8 16. Ng5 Bf8 17. Bxf8 Rxf8 18. Nf3 Rae8 19. a4 b4 20. cxb4 cxb4 21. Rc1 Rc8 22. d4 b3 23. Bd3 Qxc1 24. Qxc1 Rxc1 25. Rxc1 exd4 26. Rc7 Kg8 27. Nxd4 Rc8 28. Rxc8+ Bxc8 29. Nge2 Nd7 30. Nc3 Nc5 31. Be2 Bd7 32. f3 Kf8 33. h4 Ke8 34. Kf2 Kd8 35. Ke3 Kc8 36. g4 h6 37. g5 hxg5 38. hxg5 Kb7 39. f4 Bxa4 40. f5 Bd7 41. Kf4 Kc7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.16"]
[Round "5"]
[White "Larsen, Bent"]
[Black "Pilnik, Herman"]
[Result "1-0"]
[ECO "E63"]
[EventDate "1958.03.11"]
[PlyCount "111"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. Nf3 Bg7 5. g3 O-O 6. Bg2 Nc6 7. O-O a6 8. h3 Rb8 9. e4 b5 10. e5 Ne8 11. Qe2 b4 12. Nd5 h6 13. Rd1 e6 14. Ne3 Ne7 15. Ng4 Kh7 16. Bf4 d5 17. c5 Bd7 18. h4 Bb5 19. Qc2 b3 20. axb3 Rb7 21. Bf1 Qd7 22. Ra3 Bxf1 23. Kxf1 Qb5+ 24. Kg2 c6 25. h5 Nf5 26. Rh1 g5 27. Bxg5 hxg5 28. Nxg5+ Kg8 29. h6 Bh8 30. Ne3 Bf6 31. exf6 Nxe3+ 32. fxe3 Nxf6 33. Rf1 Ne4 34. Nxe4 dxe4 35. Qxe4 Qe2+ 36. Rf2 Qh5 37. Qf4 f6 38. Ra1 Qd5+ 39. Qf3 Rxb3 40. Qxd5 cxd5 41. Rxa6 Rxe3 42. c6 Kh7 43. c7 Rg8 44. Kh2 Rc8 45. Rc2 Rb3 46. Rxe6 Rb7 47. Rxf6 Rcxc7 48. Rxc7+ Rxc7 49. g4 Rc4 50. g5 Rxd4 51. Kg3 Rd1 52. Rf7+ Kg8 53. Rd7 d4 54. Kf4 d3 55. g6 Rf1+ 56. Ke3 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.16"]
[Round "5"]
[White "Lombardy, William James"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[ECO "B59"]
[EventDate "1958.03.11"]
[PlyCount "82"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. Be3 a5 10. f3 Be6 11. Nd5 Bxd5 12. exd5 Nb4 13. c4 Nd7 14. Qd2 b6 15. Nc1 Na6 16. Bd1 Nac5 17. Ne2 h6 18. Nc3 Bg5 19. Bxg5 hxg5 20. Bc2 Qf6 21. b3 Qf4 22. Qf2 g6 23. Nb5 Nb7 24. Qe2 Kg7 25. a3 Rfc8 26. g3 Qf6 27. Nc3 Qe7 28. Kg2 Nbc5 29. b4 Na6 30. Rab1 axb4 31. axb4 f5 32. Ba4 Nab8 33. Ra1 Nf6 34. Bb5 Rxa1 35. Rxa1 e4 36. fxe4 Qe5 37. Ra7+ Kh6 38. Qd3 fxe4 39. Qe3 Ng4 40. Qe2 Qxc3 41. Qxg4 Qd2+ 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.16"]
[Round "5"]
[White "Olivera, Alfredo"]
[Black "Letelier Martner, Rene"]
[Result "0-1"]
[ECO "A63"]
[EventDate "1958.03.11"]
[PlyCount "90"]

1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 Bg7 8. Bg2 a6 9. a4 O-O 10. O-O Nbd7 11. Bf4 Ne8 12. Qd2 Rb8 13. Bh6 b5 14. Bxg7 Kxg7 15. axb5 axb5 16. Ra7 Qb6 17. Rfa1 Bb7 18. Ne4 Nef6 19. Nfg5 Ra8 20. Rxa8 Rxa8 21. Rxa8 Bxa8 22. Nxf6 Nxf6 23. b3 h6 24. Ne4 Nxe4 25. Bxe4 Qd8 26. Qa2 Bb7 27. Bf3 Qf6 28. Qa7 Bc8 29. Kg2 b4 30. g4 h5 31. h3 hxg4 32. hxg4 Qf4 33. Kh3 Qe5 34. Qa8 Bd7 35. Qb7 Qe7 36. Kg2 Qd8 37. Qa6 Bc8 38. Qc6 Qd7 39. Qxd7 Bxd7 40. g5 Bb5 41. Kf1 f6 42. gxf6+ Kxf6 43. Be4 g5 44. Ke1 Ke5 45. Bg2 Be8 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.16"]
[Round "5"]
[White "Reinhardt, Enrique"]
[Black "Pelikan, Jorge"]
[Result "1-0"]
[ECO "A99"]
[EventDate "1958.03.11"]
[PlyCount "151"]

1. Nf3 f5 2. c4 Nf6 3. g3 d6 4. d4 e6 5. Bg2 Be7 6. O-O O-O 7. Nc3 Qe8 8. b3 a5 9. Ba3 e5 10. Nb5 Na6 11. dxe5 dxe5 12. Bb2 e4 13. Nfd4 c6 14. Nc3 Qg6 15. Qc2 h5 16. Rad1 h4 17. gxh4 Qh5 18. Qd2 Qxh4 19. Bc1 Ng4 20. Qf4 Bg5 21. Qg3 Qxg3 22. hxg3 e3 23. f3 Nf2 24. Rde1 f4 25. Ne4 Nxe4 26. fxe4 Bf6 27. Rd1 fxg3 28. Bxe3 Bg4 29. Bf3 Bh3 30. Rfe1 Nb4 31. Rd2 Rae8 32. Red1 g5 33. a3 Na6 34. Nc2 g4 35. Bh1 g2 36. Bxg2 Bxg2 37. Kxg2 Rxe4 38. Rd7 a4 39. Rxb7 axb3 40. Rxb3 Rxc4 41. Nb4 Rb8 42. Rdb1 Nc7 43. Nd5 Rxb3 44. Nxf6+ Kf7 45. Rxb3 Kxf6 46. Rb4 Nd5 47. Bd4+ Rxd4 48. Rxd4 Ke5 49. Rd2 c5 50. a4 c4 51. a5 c3 52. Ra2 Nb4 53. Ra1 c2 54. Rc1 Kd4 55. a6 Nxa6 56. Rxc2 Ke3 57. Kf1 Kd4 58. Rc6 Nc5 59. Rg6 Ne4 60. Rxg4 Ke3 61. Ke1 Kd4 62. Rh4 Ke3 63. Rh3+ Kf4 64. Rf3+ Ke5 65. Kd1 Kd4 66. Rd3+ Kc4 67. Kc2 Nc5 68. Rd8 Ne4 69. e3 Kc5 70. Kd3 Nf2+ 71. Ke2 Ne4 72. Kf3 Ng5+ 73. Kg4 Nf7 74. Rd4 Ne5+ 75. Kf5 Nc6 76. Rd1 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.16"]
[Round "5"]
[White "Sanguineti, Raul"]
[Black "Emma, Jaime"]
[Result "1-0"]
[ECO "B00"]
[EventDate "1958.03.11"]
[PlyCount "89"]

1. e4 Nc6 2. Nf3 d6 3. d4 Bg4 4. c3 Nf6 5. h3 Bh5 6. Nbd2 e6 7. Bd3 Be7 8. O-O O-O 9. Qe2 e5 10. d5 Nb8 11. g4 Bg6 12. Nh4 Nfd7 13. Nf5 a5 14. Nf3 Na6 15. h4 Nac5 16. h5 Bxf5 17. gxf5 h6 18. Kg2 Nf6 19. Bc2 Nh7 20. Rg1 Ng5 21. Kh2 Nxf3+ 22. Qxf3 Bg5 23. Bxg5 hxg5 24. Rg3 Kh7 25. Rag1 f6 26. h6 Rh8 27. Rh3 Qe7 28. Rh1 Rag8 29. Kg1 g6 30. fxg6+ Rxg6 31. Qf5 a4 32. Bd1 Qd7 33. Bg4 Qxf5 34. Bxf5 Rhg8 35. Kf1 Kh8 36. h7 R8g7 37. Bxg6 Rxg6 38. f3 Nd3 39. Rh6 Rxh6 40. Rxh6 Nxb2 41. Rxf6 Kxh7 42. Rf7+ Kg6 43. Rxc7 b5 44. Ke2 Kf6 45. Rb7 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.17"]
[Round "6"]
[White "Emma, Jaime"]
[Black "Reinhardt, Enrique"]
[Result "1-0"]
[ECO "A47"]
[EventDate "1958.03.11"]
[PlyCount "55"]

1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 4. Bd3 c5 5. O-O Nc6 6. Nbd2 Qc7 7. c3 g6 8. Re1 Bg7 9. e4 d6 10. d5 Ne5 11. Nxe5 dxe5 12. Bb5+ Nd7 13. Nc4 a6 14. Bxd7+ Kxd7 15. Qg4+ Ke8 16. f4 b5 17. Nxe5 Bxe5 18. fxe5 Qxe5 19. Bf4 Qh5 20. Qg3 Kd7 21. Rad1 Rhc8 22. e5 Ke8 23. d6 Bc6 24. Bg5 e6 25. Qf4 f5 26. exf6 Kf7 27. d7 Rd8 28. Qd6 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.17"]
[Round "6"]
[White "Foguelman, Alberto"]
[Black "Behrensen, Jorge"]
[Result "1-0"]
[ECO "E11"]
[EventDate "1958.03.11"]
[PlyCount "55"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 d5 6. Bg2 O-O 7. Nf3 dxc4 8. Na3 Bd7 9. Nxc4 Bc6 10. O-O Qe7 11. Rac1 Bd5 12. Qf4 Na6 13. a3 c5 14. Qd6 Qe8 15. dxc5 Ne4 16. Qf4 Nexc5 17. Nd6 Qe7 18. b4 Nb3 19. Rc3 f6 20. Rd1 g5 21. Qg4 Rad8 22. e4 h5 23. Qxh5 Bxe4 24. Nxg5 Bxg2 25. Qg6+ Qg7 26. Qxg7+ Kxg7 27. Nxe6+ Kg8 28. Kxg2 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.17"]
[Round "6"]
[White "Letelier Martner, Rene"]
[Black "Pilnik, Herman"]
[Result "1-0"]
[ECO "B20"]
[EventDate "1958.03.11"]
[PlyCount "115"]

1. e4 c5 2. d3 g6 3. g3 Bg7 4. Bg2 Nc6 5. f4 e6 6. Nf3 d5 7. c3 Nge7 8. Qe2 b6 9. O-O Ba6 10. e5 h5 11. Rd1 Qd7 12. Nbd2 Nf5 13. Nf1 Bf8 14. Bd2 Be7 15. Be1 b5 16. h3 Bd8 17. Bf2 Bb6 18. a3 Bb7 19. g4 hxg4 20. hxg4 Nfe7 21. Ng5 Na5 22. b4 Nb3 23. Rab1 c4 24. dxc4 bxc4 25. Ne4 Qc7 26. Nd6+ Kf8 27. Nh2 Nc8 28. Nxc8 Rxc8 29. Nf3 Kg7 30. Kf1 Qd7 31. a4 Qxa4 32. f5 d4 33. Nxd4 Bxg2+ 34. Kxg2 Nxd4 35. f6+ Kg8 36. Bxd4 Qc6+ 37. Kg3 Bc7 38. Ra1 a6 39. Qg2 Qb5 40. Qe4 Rd8 41. Rh1 Rxh1 42. Rxh1 Qd5 43. Qxd5 Rxd5 44. Kf4 a5 45. bxa5 Bxa5 46. Rb1 Kf8 47. Rb7 Kg8 48. Kg5 Kf8 49. Ra7 Bd8 50. Ra4 Ke8 51. Rxc4 Ra5 52. Rc8 Rb5 53. Kh6 Rb7 54. Kg7 Kd7 55. Ra8 Ke8 56. Bc5 Kd7 57. Kxf7 Bc7 58. Kxg6 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.17"]
[Round "6"]
[White "Olivera, Alfredo"]
[Black "Sanguineti, Raul"]
[Result "1-0"]
[ECO "D00"]
[EventDate "1958.03.11"]
[PlyCount "75"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. h3 b6 7. Ne5 Bb7 8. Be2 Nfd7 9. Nxd7 Nxd7 10. Bf3 c6 11. O-O e5 12. dxe5 Nxe5 13. Be2 Qe7 14. a4 a5 15. Na2 Rfd8 16. c3 Nc4 17. Qc2 Qe6 18. Rfd1 c5 19. Bg4 f5 20. Bf3 Rd7 21. Rd3 g5 22. Bg3 Be5 23. b3 Na3 24. Qc1 Bxg3 25. fxg3 g4 26. hxg4 fxg4 27. Be2 Re7 28. Qxa3 c4 29. Bxg4 Qe4 30. Bf3 Qe5 31. Rd4 Qxe3+ 32. Kh2 Re6 33. Rg4+ Kh8 34. bxc4 Qf2 35. Qc1 Re3 36. Qd1 Rae8 37. Qd4+ R8e5 38. Rg5 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.17"]
[Round "6"]
[White "Panno, Oscar"]
[Black "Casas, Fernando"]
[Result "1-0"]
[ECO "D58"]
[EventDate "1958.03.11"]
[PlyCount "99"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Be7 5. Bg5 O-O 6. e3 h6 7. Bh4 b6 8. cxd5 exd5 9. Be2 Be6 10. O-O c5 11. Ne5 Nfd7 12. Nxd7 Nxd7 13. Bxe7 Qxe7 14. dxc5 Qxc5 15. Qa4 Qe7 16. Rfd1 Nc5 17. Qd4 Rad8 18. Bf3 Rd7 19. Qf4 Rfd8 20. h3 f6 21. Rd4 Bf7 22. Bg4 Be6 23. Rad1 Bxg4 24. Qxg4 Qe5 25. Rxd5 Rxd5 26. Rxd5 Rxd5 27. Qc4 b5 28. Qxd5+ Qxd5 29. Nxd5 Nd3 30. b4 Kf7 31. a3 Ne5 32. Nc3 a6 33. Kf1 Nc4 34. Nb1 Ke6 35. Ke2 Kd5 36. Kd3 f5 37. Kc2 g5 38. Nc3+ Kc6 39. Nb1 h5 40. Nd2 Nd6 41. Kd3 Kd5 42. f3 h4 43. e4+ Ke5 44. Ke3 f4+ 45. Kd3 Ne8 46. Nb3 Nd6 47. Na5 Ne8 48. Nb7 Nf6 49. Nc5 Kd6 50. Kd4 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.17"]
[Round "6"]
[White "Pelikan, Jorge"]
[Black "Lombardy, William James"]
[Result "1/2-1/2"]
[ECO "A03"]
[EventDate "1958.03.11"]
[PlyCount "97"]

1. f4 d5 2. Nf3 g6 3. e3 Bg7 4. Be2 Nf6 5. O-O O-O 6. d3 Nbd7 7. Nc3 b6 8. e4 e6 9. f5 exf5 10. exf5 Nc5 11. Nd4 Bb7 12. Bg5 Qd7 13. Qd2 Ne8 14. f6 Bh8 15. Qf4 Ne6 16. Bg4 Nxf4 17. Bxd7 Bxf6 18. Bxf6 Nxf6 19. Bc6 Bxc6 20. Nxc6 N4h5 21. h3 d4 22. Nxd4 Rfd8 23. Nde2 Ne8 24. g4 Nhg7 25. Nf4 f5 26. Rae1 Rd7 27. g5 c6 28. h4 Nc7 29. Kg2 Re8 30. Rxe8+ Ncxe8 31. Re1 Nc7 32. Re5 Kf7 33. Nce2 Re7 34. Rxe7+ Kxe7 35. d4 Kd6 36. c4 Nge6 37. Nxe6 Nxe6 38. Kf3 b5 39. b3 bxc4 40. bxc4 c5 41. d5 Nf8 42. Kf4 Nd7 43. Nc3 Nb6 44. Nb5+ Kd7 45. Nxa7 Nxc4 46. Nb5 Kc8 47. h5 Kd7 48. h6 Nd6 49. Nc3 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.17"]
[Round "6"]
[White "Rossetto, Hector Decio"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "E87"]
[EventDate "1958.03.11"]
[PlyCount "70"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 e5 6. d5 Nh5 7. Be3 f5 8. Nge2 O-O 9. Qd2 a6 10. O-O-O Nd7 11. Kb1 Qe8 12. Nc1 Ndf6 13. Bd3 Kh8 14. Bc2 b5 15. cxb5 axb5 16. exf5 gxf5 17. Nd3 f4 18. Bf2 e4 19. fxe4 Nxe4 20. Nxe4 Qxe4 21. Nb4 Qxg2 22. Rhg1 Qh3 23. Rde1 Bf5 24. Re7 Rae8 25. Rxc7 f3 26. Bd4 Bxd4 27. Qxd4+ Re5 28. Nd3 Bxd3 29. Bxd3 Nf6 30. Qf4 f2 31. Rg3 Re1+ 32. Rc1 Rxc1+ 33. Kxc1 Qc8+ 34. Kd2 Qc5 35. Qg5 f1=N+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.17"]
[Round "6"]
[White "Sumar, Julio"]
[Black "Eliskases, Erich"]
[Result "1-0"]
[ECO "A24"]
[EventDate "1958.03.11"]
[PlyCount "91"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d6 6. c4 e5 7. Nc3 Nc6 8. e4 Nh5 9. Ne1 Nd4 10. Be3 f5 11. exf5 Nxf5 12. Bd2 Nd4 13. Nc2 Ne6 14. Qc1 c6 15. Bh6 Bd7 16. Bxg7 Nhxg7 17. b4 Nf5 18. a4 a5 19. b5 Nfd4 20. Nxd4 Nxd4 21. Qd1 Bf5 22. Ra2 Qd7 23. f4 Bg4 24. Qd2 Bh3 25. Qe3 Bxg2 26. Rxg2 Nf5 27. Qd2 Qg7 28. Rgf2 Rae8 29. g4 Nd4 30. fxe5 Qxe5 31. Ne4 Rxf2 32. Qxf2 Kh8 33. Qf7 Qe7 34. Nxd6 Qxf7 35. Rxf7 Re1+ 36. Kf2 Re2+ 37. Kf1 Ra2 38. b6 Rxa4 39. Rxb7 Rb4 40. Rb8+ Kg7 41. b7 Rb1+ 42. Kf2 Rb2+ 43. Ke3 c5 44. Ke4 g5 45. Rc8 Kf6 46. Kd5 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.19"]
[Round "7"]
[White "Behrensen, Jorge"]
[Black "Panno, Oscar"]
[Result "0-1"]
[ECO "B43"]
[EventDate "1958.03.11"]
[PlyCount "68"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 b5 7. Bg2 Bb7 8. O-O Nf6 9. Re1 d6 10. a4 b4 11. Na2 Be7 12. Bd2 Nbd7 13. Bxb4 O-O 14. Rc1 Nc5 15. Nc3 Rfd8 16. Nb3 Nxb3 17. cxb3 Qb6 18. Ba3 Rab8 19. Re3 Nd7 20. Qe2 Ne5 21. h3 Nc6 22. Kh2 Nd4 23. Qd3 Nxb3 24. Rd1 Nc5 25. Qc2 Rbc8 26. b4 Nd7 27. Qb3 Ne5 28. a5 Qa7 29. b5 Nc4 30. b6 Qb8 31. Red3 Nxa5 32. Qb4 Nc4 33. e5 Nxe5 34. Rd4 Bxg2 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.19"]
[Round "7"]
[White "Casas, Fernando"]
[Black "Pelikan, Jorge"]
[Result "1-0"]
[ECO "B32"]
[EventDate "1958.03.11"]
[PlyCount "37"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 Qg6 9. Nc3 Nge7 10. Be3 d6 11. Qd2 O-O 12. h4 d5 13. h5 Qd6 14. exd5 Nb4 15. Ne4 Nxc2+ 16. Qxc2 Qxd5 17. Rd1 Qxa2 18. Bc5 Bg4 19. f3 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.19"]
[Round "7"]
[White "Eliskases, Erich"]
[Black "Foguelman, Alberto"]
[Result "1-0"]
[ECO "E06"]
[EventDate "1958.03.11"]
[PlyCount "101"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nc6 7. Ne5 Nxe5 8. dxe5 Nd7 9. cxd5 Nxe5 10. Nc3 exd5 11. Nxd5 Bd6 12. Qc2 c6 13. Nc3 f5 14. Rd1 Qe7 15. Bf4 Be6 16. Rxd6 Qxd6 17. Rd1 Qc7 18. Nb5 Qf7 19. Nd6 Qf6 20. Nxb7 Rab8 21. Qc5 Rxb7 22. Bxe5 Qf7 23. Bxc6 Rb6 24. b4 Rc8 25. b5 Bxa2 26. Bc3 h6 27. Rd6 Bc4 28. Qd4 Rc7 29. Ba5 Rcxc6 30. Rxc6 Rxc6 31. bxc6 Ba6 32. c7 Kh7 33. h4 Qe7 34. Kh2 Bc8 35. Qc4 Qe4 36. Qxe4 fxe4 37. f3 exf3 38. exf3 Kg6 39. g4 Kf7 40. h5 Bb7 41. Kg3 g5 42. hxg6+ Kxg6 43. Kh4 Bc8 44. f4 Bd7 45. f5+ Kh7 46. Bc3 Bc8 47. Kh5 Bd7 48. g5 Bxf5 49. g6+ Kg8 50. Kxh6 Bh3 51. Kg5 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.19"]
[Round "7"]
[White "Larsen, Bent"]
[Black "Sumar, Julio"]
[Result "1/2-1/2"]
[ECO "D60"]
[EventDate "1958.03.11"]
[PlyCount "79"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 Nbd7 6. e3 c6 7. Qc2 O-O 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. bxc3 e5 13. Qe4 Re8 14. Rfe1 g6 15. Bb3 Kg7 16. dxe5 Nxe5 17. Qxe5+ Qxe5 18. Nxe5 Rxe5 19. e4 a5 20. a4 Ra6 21. f4 Rc5 22. Rec1 b5 23. Kf2 Be6 24. Bd1 Ra7 25. Ke3 f5 26. e5 Bd5 27. axb5 cxb5 28. Kd4 Rac7 29. Rxa5 Rc4+ 30. Ke3 Re4+ 31. Kd2 Bc4 32. g3 Rd7+ 33. Kc2 Re1 34. Ra6 Rh1 35. Rd6 Rxh2+ 36. Kb1 Ba2+ 37. Ka1 Ra7 38. Bc2 Bd5+ 39. Kb1 Ba2+ 40. Ka1 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.19"]
[Round "7"]
[White "Lombardy, William James"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "D34"]
[EventDate "1958.03.11"]
[PlyCount "80"]

1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. d4 c5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Be3 Ng4 10. Bf4 Be6 11. Rc1 g5 12. Bd2 Nxd4 13. Nxd4 cxd4 14. Nb5 Qb6 15. Nc7 Rad8 16. Qa4 Bd7 17. Qa5 Bc6 18. Qxb6 axb6 19. Na6 Ne5 20. Bb4 Rfe8 21. Bxe7 Rxe7 22. Nb4 Bb5 23. Nxd5 Rxd5 24. Bxd5 Bxe2 25. Rc8+ Kg7 26. Ra1 d3 27. Rd8 d2 28. f4 d1=Q+ 29. Rxd1 Bxd1 30. fxe5 Rxe5 31. Bxb7 Bg4 32. Rd5 Kf6 33. Rd6+ Re6 34. Rd2 Re7 35. Bg2 Rd7 36. Rxd7 Bxd7 37. Be4 h6 38. Bd5 Be8 39. Kf2 Ke5 40. Bb3 f5 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.19"]
[Round "7"]
[White "Pilnik, Herman"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "B59"]
[EventDate "1958.03.11"]
[PlyCount "178"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be6 8. O-O a5 9. Be3 a4 10. Nd2 d5 11. exd5 Nxd5 12. Nxd5 Qxd5 13. c3 Be7 14. Qc2 Qa5 15. Nc4 Bxc4 16. Bxc4 O-O 17. Rad1 Rad8 18. Rxd8 Rxd8 19. Qf5 Bf6 20. Bd3 h6 21. Qh7+ Kf8 22. Bc4 Ne7 23. b4 axb3 24. axb3 Qc7 25. Qe4 Kg8 26. g3 Qc6 27. Qxc6 bxc6 28. Bb6 Rd2 29. Ra1 Nd5 30. Bc5 e4 31. Ra6 Nxc3 32. Rxc6 Ne2+ 33. Kf1 Nd4 34. Rc8+ Kh7 35. Re8 Rc2 36. Rxe4 Nxb3 37. Bxb3 Rxc5 38. Bxf7 Rc2 39. h4 Rc7 40. Bb3 Rc5 41. Re8 h5 42. Kg2 g6 43. Rf8 Rc6 44. Rf7+ Kh6 45. Bd5 Rd6 46. Be4 Bd4 47. f3 Bf6 48. Kh3 Ra6 49. Rd7 Rb6 50. Bd5 Rb8 51. g4 hxg4+ 52. fxg4 Rc8 53. Be4 Re8 54. g5+ Bxg5 55. hxg5+ Kxg5 56. Rd5+ Kh6 57. Bd3 Re6 58. Kg4 Rb6 59. Kf4 Rf6+ 60. Ke5 Rb6 61. Rc5 Kg5 62. Rc1 Kh6 63. Be4 Ra6 64. Bc6 Kg7 65. Ke6 Rb6 66. Ke7 Ra6 67. Bd7 Rf6 68. Be6 Rf2 69. Rc8 Rf1 70. Rg8+ Kh7 71. Ra8 Kg7 72. Ra7 Re1 73. Ke8+ Kf6 74. Rf7+ Kg5 75. Ke7 Kh6 76. Rf2 Kg7 77. Rf3 Re2 78. Rf1 Re3 79. Kd6 Rd3+ 80. Bd5 Rd2 81. Rf4 Rd1 82. Ke6 Re1+ 83. Be4 Ra1 84. Bd5 Re1+ 85. Kd6 Re3 86. Bc4 Re1 87. Rf7+ Kh6 88. Rf3 Kg7 89. Rg3 Rb1 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.19"]
[Round "7"]
[White "Reinhardt, Enrique"]
[Black "Olivera, Alfredo"]
[Result "1-0"]
[ECO "E14"]
[EventDate "1958.03.11"]
[PlyCount "83"]

1. c4 Nf6 2. Nf3 b6 3. d4 e6 4. e3 Bb7 5. Bd3 Ne4 6. O-O Be7 7. Ne5 O-O 8. f3 Nf6 9. f4 d6 10. Nf3 Nbd7 11. Nc3 c5 12. b3 Re8 13. Bb2 Bf8 14. Bc2 Rc8 15. e4 cxd4 16. Nxd4 Nc5 17. Qe1 d5 18. cxd5 exd5 19. e5 Nfe4 20. Rd1 Nxc3 21. Bxc3 Ne6 22. Nxe6 fxe6 23. Bd3 a5 24. Bb2 Bc5+ 25. Kh1 Qe7 26. Qg3 g6 27. Qg4 d4 28. Bc4 Bd5 29. Bxd5 exd5 30. Bxd4 Bxd4 31. Rxd4 Qc5 32. Rfd1 Rcd8 33. h4 Kh8 34. Qf3 Rf8 35. g3 Qc8 36. Kg2 Qf5 37. Rxd5 Rc8 38. R1d2 h5 39. Qd3 Qg4 40. Rd6 Rxf4 41. Rxg6 Rd4 42. Rh6+ 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.19"]
[Round "7"]
[White "Sanguineti, Raul"]
[Black "Letelier Martner, Rene"]
[Result "1/2-1/2"]
[ECO "C97"]
[EventDate "1958.03.11"]
[PlyCount "120"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. Nbd2 O-O 12. h3 Re8 13. Nf1 Bd7 14. Bg5 Nc4 15. b3 Na3 16. dxe5 dxe5 17. Bd3 c4 18. Be2 Nxe4 19. Bxe7 Rxe7 20. Qc1 Qc5 21. Ne3 a5 22. b4 axb4 23. cxb4 Qa7 24. Rd1 f5 25. Rd5 f4 26. Nd1 Rae8 27. Nd2 Nf6 28. Rd6 e4 29. Nf1 e3 30. fxe3 fxe3 31. Nc3 Re5 32. Nh2 Rf5 33. Nf3 Re7 34. Qb2 Ne8 35. Rd5 Ref7 36. Ne5 Be6 37. Rc5 Rc7 38. Ne4 Rxc5 39. Nxc5 Bd5 40. Rd1 Nf6 41. Bg4 Rf2 42. Rxd5 Nxd5 43. Qd4 Nc7 44. Qd7 Rf8 45. Nc6 Qb6 46. Qd6 Rb8 47. Kh1 Kh8 48. Nd7 Rd8 49. Nxd8 Qxd6 50. Nf7+ Kg8 51. Nxd6 Nc2 52. a3 Nxa3 53. Kg1 Nc2 54. Kf1 Nxb4 55. Ke2 Nbd5 56. Nf5 Nf4+ 57. Kf3 e2 58. Kf2 Nxg2 59. Bxe2 Nf4 60. Bf1 Kf7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.20"]
[Round "8"]
[White "Emma, Jaime"]
[Black "Casas, Fernando"]
[Result "1/2-1/2"]
[ECO "B24"]
[EventDate "1958.03.11"]
[PlyCount "81"]

1. Nc3 c5 2. e4 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2 Ne7 8. c3 Nxe2 9. Nxe2 d6 10. Qd2 Rb8 11. Bh6 Bf6 12. d4 Nc6 13. O-O e5 14. Be3 O-O 15. Rfd1 Qe7 16. dxc5 dxc5 17. Qd5 Qc7 18. Bxc5 Rd8 19. Bd6 Qb6 20. Qb3 Qxb3 21. axb3 Ra8 22. b4 b6 23. Bc7 Rxd1+ 24. Rxd1 Ba6 25. Rd6 Be7 26. Rxc6 Bb5 27. Bd6 Bd8 28. Bxe5 Bxc6 29. Nd4 Bb7 30. c4 a5 31. b5 Rc8 32. b3 a4 33. bxa4 Rxc4 34. Bf1 Rxa4 35. Nc6 Bxc6 36. bxc6 Ra7 37. Bb8 Re7 38. Bd6 Rxe4 39. c7 Bxc7 40. Bxc7 Rb4 41. Kg2 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.20"]
[Round "8"]
[White "Foguelman, Alberto"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "B16"]
[EventDate "1958.03.11"]
[PlyCount "78"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Bc4 Bf5 7. c3 e6 8. Qh5 Nd7 9. Nf3 Bg6 10. Qh3 Nb6 11. Bb3 Qc7 12. Nh4 Be4 13. O-O Bd5 14. Qd3 f5 15. Nxf5 exf5 16. Re1+ Be7 17. Qxf5 Qd7 18. Qe5 Rg8 19. Bxd5 Nxd5 20. c4 Qg4 21. g3 f6 22. Qe4 Qxe4 23. Rxe4 Nb6 24. b3 Kf7 25. Rh4 Rh8 26. a4 Nd7 27. Bb2 Rad8 28. Re1 Nf8 29. Rhe4 Ng6 30. h4 h5 31. f4 Bb4 32. f5 Ne7 33. Rf1 Rhe8 34. Ref4 Ng8 35. Kf2 Bd2 36. Rf3 Nh6 37. Rd1 Ng4+ 38. Kg1 Re2 39. Bc3 Be3+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.20"]
[Round "8"]
[White "Letelier Martner, Rene"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "B33"]
[EventDate "1958.03.11"]
[PlyCount "85"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. a4 a6 8. Na3 d5 9. Bg5 d4 10. Nd5 Be6 11. Bc4 Bxd5 12. exd5 Bb4+ 13. Kf1 Na5 14. Qe2 Qd6 15. Bxf6 Qxf6 16. Bb5+ Kf8 17. Bd3 g6 18. Nc4 Nxc4 19. Bxc4 Rc8 20. h4 h5 21. Bb3 Kg7 22. Rh3 Rhe8 23. Qe4 Qd6 24. Kg1 f5 25. Qe2 e4 26. Kh1 Qf6 27. Rd1 Bc5 28. Rf1 f4 29. Bc4 Bd6 30. b3 Re7 31. Rd1 Rf8 32. f3 exf3 33. Qxf3 Re3 34. Qf2 Rxh3+ 35. gxh3 Re8 36. Rg1 Re3 37. Rg5 d3 38. Bxd3 Qa1+ 39. Rg1 Rxh3+ 40. Kg2 Rg3+ 41. Qxg3 Qxg1+ 42. Kxg1 fxg3 43. Kg2 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.20"]
[Round "8"]
[White "Olivera, Alfredo"]
[Black "Lombardy, William James"]
[Result "0-1"]
[ECO "E60"]
[EventDate "1958.03.11"]
[PlyCount "94"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d6 5. O-O O-O 6. b3 Nbd7 7. Bb2 e5 8. dxe5 Ng4 9. c4 dxe5 10. Nc3 Re8 11. Ne4 Ngf6 12. Nxf6+ Qxf6 13. Qd2 Qe7 14. Rfe1 a5 15. a4 f6 16. Ba3 Qf7 17. Qd5 Nf8 18. Qxf7+ Kxf7 19. Rad1 Ne6 20. e3 Bf8 21. Bxf8 Kxf8 22. Rd5 Ke7 23. Bh3 c6 24. Rd2 Nc5 25. Bxc8 Rexc8 26. Rb1 Ra6 27. Ne1 Rd8 28. Rxd8 Kxd8 29. Nf3 Kc7 30. Nd2 Ra8 31. Kf1 Rd8 32. Ke2 e4 33. f3 exf3+ 34. Nxf3 Ne4 35. Rc1 Kb6 36. Nd4 Re8 37. Kd3 f5 38. Rc2 Kc5 39. Re2 Kb4 40. Kc2 Re7 41. Kb2 Nf6 42. Re1 Kc5 43. Re2 Ng4 44. Nc2 Kd6 45. Ka2 Ke5 46. b4 Ke4 47. Kb3 Kd3 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.20"]
[Round "8"]
[White "Panno, Oscar"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "C99"]
[EventDate "1958.03.11"]
[PlyCount "82"]

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. d5 Bc8 15. Re3 Nb7 16. Rc3 Qb8 17. b4 a5 18. Ba3 Bd7 19. bxa5 Bd8 20. Nb3 Nxa5 21. Nxa5 Bxa5 22. Rb3 Rc8 23. Bd3 b4 24. Qe2 Ba4 25. Rbb1 bxa3 26. Rxb8 Raxb8 27. Rb1 g6 28. Nd2 Rxb1+ 29. Nxb1 Rc1+ 30. Kh2 Re1 31. Qf3 Kg7 32. g4 Bd1 33. Qg3 Bb4 34. Kg2 g5 35. Nxa3 Bxa3 36. f4 Bb4 37. fxe5 Nxe4 38. Bxe4 Rxe4 39. exd6 Re2+ 40. Kf1 Re1+ 41. Kg2 Re2+ 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.20"]
[Round "8"]
[White "Pelikan, Jorge"]
[Black "Behrensen, Jorge"]
[Result "1/2-1/2"]
[ECO "A03"]
[EventDate "1958.03.11"]
[PlyCount "145"]

1. f4 d5 2. Nf3 Nf6 3. e3 g6 4. Be2 Bg7 5. O-O O-O 6. d3 b6 7. Qe1 Bb7 8. Nbd2 Nbd7 9. Qh4 e6 10. g4 Ne8 11. Qh3 Nd6 12. c3 Rc8 13. Rd1 Qe7 14. d4 c5 15. Bd3 f6 16. g5 f5 17. Nf1 Ne4 18. Bd2 Nb8 19. Qg2 Ba6 20. Bxa6 Nxa6 21. h4 Nb8 22. Be1 Rfd8 23. Ng3 Nc6 24. h5 Nxg3 25. Qxg3 Qb7 26. Kg2 Qa6 27. Bf2 Qb5 28. Rd2 Kf7 29. Rh1 Qa6 30. a3 c4 31. Qh3 b5 32. Bg3 Qb7 33. Rf2 a5 34. Re2 b4 35. axb4 axb4 36. Nh4 Rh8 37. Be1 Ra8 38. Nf3 b3 39. Bg3 Ra2 40. Rf2 Qa8 41. Ne5+ Nxe5 42. fxe5 Ra1 43. Bf4 Rd8 44. Kg3 Qa2 45. Rhf1 Ra8 46. e4 dxe4 47. Kh2 Rxf1 48. Qxf1 Ra4 49. d5 exd5 50. Qd1 Ra5 51. Qd4 Rb5 52. e6+ Kg8 53. e7 Qa8 54. Be5 Qe8 55. Bxg7 Qxe7 56. Bf6 Qc7+ 57. Be5 Qc5 58. Qxc5 Rxc5 59. hxg6 hxg6 60. Kg3 Ra5 61. Bf6 Kf7 62. Kf4 Ke6 63. Rf1 Ra2 64. Rb1 Ra7 65. Kg3 Ra2 66. Bd4 Kd6 67. Rh1 Rxb2 68. Rh6 Rd2 69. Rxg6+ Kd7 70. Rg7+ Kc6 71. Rg6+ Kd7 72. Rg7+ Kc6 73. Rg6+ 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.20"]
[Round "8"]
[White "Sanguineti, Raul"]
[Black "Reinhardt, Enrique"]
[Result "1-0"]
[ECO "C44"]
[EventDate "1958.03.11"]
[PlyCount "87"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 Nf6 5. e5 Ne4 6. Qe2 d5 7. exd6 f5 8. Nxd4 Nxd4 9. cxd4 Bxd6 10. f3 Qh4+ 11. g3 Bxg3+ 12. hxg3 Qxh1 13. fxe4 Qxe4 14. Qxe4+ fxe4 15. Bf4 c6 16. Nc3 Bf5 17. Bg2 O-O 18. O-O-O Bg4 19. Re1 Bf3 20. Bh3 Rfe8 21. Bd7 Re7 22. Bf5 Rae8 23. b4 g6 24. Bh3 Kg7 25. Be5+ Kh6 26. Kd2 Rxe5 27. dxe5 Rxe5 28. Ke3 Kg5 29. Kd4 Re8 30. Nxe4+ Bxe4 31. Rxe4 Rd8+ 32. Kc4 Rd2 33. a4 Rc2+ 34. Kb3 Rf2 35. Re5+ Kf6 36. Re3 h5 37. Bc8 b6 38. Re6+ Kg5 39. Rxc6 Rg2 40. Rc3 h4 41. gxh4+ Kxh4 42. Kc4 Ra2 43. Kb5 Kg5 44. Rc7 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.20"]
[Round "8"]
[White "Sumar, Julio"]
[Black "Pilnik, Herman"]
[Result "0-1"]
[ECO "A07"]
[EventDate "1958.03.11"]
[PlyCount "80"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O d5 5. d3 O-O 6. Nbd2 Nc6 7. c3 e5 8. e4 h6 9. Re1 Re8 10. a4 Be6 11. exd5 Bxd5 12. Qc2 a5 13. Nh4 Bxg2 14. Nxg2 Qd7 15. Ne4 Qh3 16. Nxf6+ Bxf6 17. Re4 Rad8 18. Be3 h5 19. Rf1 Qd7 20. Rd1 Re6 21. f4 Rd6 22. fxe5 Nxe5 23. d4 Nf3+ 24. Kh1 Qf5 25. Bf4 Re6 26. Re2 Qh3 27. Ne3 Rde8 28. Qd3 Bg5 29. Bxg5 Nxg5 30. Rg1 Re4 31. d5 Nh7 32. Rgg2 Qd7 33. Kg1 Qe7 34. Kf2 Nf6 35. h3 Qc5 36. c4 h4 37. g4 Rf4+ 38. Ke1 Rf3 39. Qc3 Rexe3 40. Qc2 Ne4 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.22"]
[Round "9"]
[White "Behrensen, Jorge"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "D07"]
[EventDate "1958.03.11"]
[PlyCount "32"]

1. d4 d5 2. Nf3 Nc6 3. c4 Bg4 4. e3 e5 5. dxe5 dxc4 6. Qxd8+ Rxd8 7. Bxc4 Nxe5 8. Be2 Bxf3 9. gxf3 Nd3+ 10. Bxd3 Rxd3 11. Ke2 Rd7 12. e4 Bc5 13. Nc3 Ne7 14. Be3 Bxe3 15. fxe3 Ng6 16. f4 f6 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.22"]
[Round "9"]
[White "Casas, Fernando"]
[Black "Olivera, Alfredo"]
[Result "1/2-1/2"]
[ECO "E45"]
[EventDate "1958.03.11"]
[PlyCount "65"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 O-O 9. Bd3 c5 10. dxc5 bxc5 11. O-O dxc4 12. bxc4 Nbd7 13. f4 Rb8 14. Qc2 Nb6 15. Ne2 Qd7 16. a4 Rfd8 17. Rd1 Bxc4 18. Bxh7+ Nxh7 19. Rxd7 Rxd7 20. a5 Bd3 21. Qb2 Bxe2 22. axb6 Rd1+ 23. Kf2 Bd3 24. Rxa7 Nf6 25. b7 Ne4+ 26. Kf3 f5 27. g3 Kh7 28. Ra8 Rxb7 29. Qxb7 Rf1+ 30. Kg2 Rf2+ 31. Kg1 Rf1+ 32. Kg2 Rf2+ 33. Kg1 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.22"]
[Round "9"]
[White "Eliskases, Erich"]
[Black "Pelikan, Jorge"]
[Result "1-0"]
[ECO "B07"]
[EventDate "1958.03.11"]
[PlyCount "81"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 c6 5. Qd2 Qa5 6. h4 Nf6 7. f3 h5 8. Nh3 Bxh3 9. Rxh3 Nbd7 10. a3 a6 11. Be2 e5 12. O-O-O O-O-O 13. Kb1 exd4 14. Bxd4 Rhe8 15. Nb5 Qxd2 16. Nxd6+ Kb8 17. Rxd2 Re7 18. Nc4 b5 19. Na5 Kc7 20. b4 Ne8 21. Bxg7 Nxg7 22. Rh1 Ne6 23. Rhd1 Rg8 24. c4 g5 25. cxb5 axb5 26. Rc2 c5 27. Bxb5 gxh4 28. Nc6 Ree8 29. Nd4 Rd8 30. Nxe6+ fxe6 31. Bxd7 Rxd7 32. Rxc5+ Kd8 33. Rxd7+ Kxd7 34. Rxh5 Rxg2 35. Rxh4 Rf2 36. Rf4 Kd6 37. Rf7 Kc6 38. a4 Rd2 39. Re7 Kd6 40. Rb7 Rf2 41. a5 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.22"]
[Round "9"]
[White "Larsen, Bent"]
[Black "Panno, Oscar"]
[Result "0-1"]
[ECO "B68"]
[EventDate "1958.03.11"]
[PlyCount "60"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. e5 b4 12. exd6 bxc3 13. Qxc3 Bf8 14. f5 Qa5 15. fxe6 fxe6 16. Bxf6 gxf6 17. Qxf6 Rg8 18. Bc4 Bg7 19. Qh4 Rb8 20. Bb3 Rxb3 21. axb3 Qa1+ 22. Kd2 Qxb2 23. Qxh7 Rf8 24. Qh5+ Kd8 25. Qh4+ Ke8 26. Qh5+ Rf7 27. Qc5 Rf5 28. Qc4 Ne5 29. Nxe5 Bh6+ 30. Kd3 Rxe5 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.22"]
[Round "9"]
[White "Lombardy, William James"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "A37"]
[EventDate "1958.03.11"]
[PlyCount "43"]

1. c4 c5 2. Nc3 g6 3. Nf3 Bg7 4. g3 Nc6 5. Bg2 d6 6. O-O a6 7. d3 Rb8 8. Ne1 h5 9. h3 Bd7 10. a4 a5 11. g4 f5 12. g5 e5 13. f4 Nge7 14. Nc2 Nd4 15. Ne3 exf4 16. Ned5 Be5 17. Nxf4 Ne6 18. Nxe6 Bxe6 19. Be3 O-O 20. Qd2 Kg7 21. Bf4 Qd7 22. e3 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.22"]
[Round "9"]
[White "Pilnik, Herman"]
[Black "Foguelman, Alberto"]
[Result "1/2-1/2"]
[ECO "C00"]
[EventDate "1958.03.11"]
[PlyCount "82"]

1. e4 e6 2. d3 b6 3. Nf3 Be7 4. g3 Bb7 5. Bg2 c5 6. O-O d6 7. Nc3 Nf6 8. Nd2 Nc6 9. f4 Qd7 10. Nc4 O-O 11. Ne3 Rab8 12. g4 Ne8 13. g5 Nd4 14. Ne2 f5 15. h4 Nxe2+ 16. Qxe2 g6 17. exf5 exf5 18. Nd5 Bd8 19. b3 Nc7 20. Nxc7 Bxg2 21. Qxg2 Bxc7 22. Qd5+ Qf7 23. c4 Qxd5 24. cxd5 Rfe8 25. Kf2 b5 26. h5 c4 27. Be3 cxd3 28. hxg6 hxg6 29. Rh1 Bb6 30. Bxb6 Re2+ 31. Kf3 axb6 32. Rh6 Kg7 33. Rah1 Rbe8 34. Rh7+ Kf8 35. Rh8+ Ke7 36. Rxe8+ Kxe8 37. Rd1 Rxa2 38. Rxd3 Rb2 39. Re3+ Kf7 40. Re6 Rxb3+ 41. Kg2 Rb2+ 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.22"]
[Round "9"]
[White "Reinhardt, Enrique"]
[Black "Letelier Martner, Rene"]
[Result "1-0"]
[ECO "C99"]
[EventDate "1958.03.11"]
[PlyCount "139"]

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. Bb1 d5 16. exd5 exd4 17. Bg5 Rcd8 18. Qd3 g6 19. Qxd4 Nxd5 20. Qh4 f6 21. Bh6 Rfe8 22. Be4 Bf8 23. Rac1 Qf7 24. Bxf8 Rxf8 25. Qg3 Nc4 26. Nd4 Kh8 27. b3 Nd6 28. Nc6 Rd7 29. Bb1 b4 30. Na5 Nb5 31. Nxb7 Rxb7 32. Bd3 Nbc3 33. Bxa6 Ra7 34. Bc4 Nxa2 35. Rc2 Nac3 36. Qd6 Rd7 37. Qc5 Rfd8 38. Nd2 Qf8 39. Qxf8+ Rxf8 40. Nb1 Ra8 41. Nxc3 Nxc3 42. Re6 Ra1+ 43. Kh2 f5 44. g4 fxg4 45. hxg4 g5 46. Rb6 Rdd1 47. f3 Ra2 48. Rxa2 Nxa2 49. Rb7 Rd4 50. Kg3 Rd2 51. f4 gxf4+ 52. Kxf4 Rd4+ 53. Ke5 Rd8 54. Kf6 Rf8+ 55. Kg5 Rd8 56. Kh5 Nc3 57. Rxb4 Nd5 58. Rb7 Nf6+ 59. Kg5 Rf8 60. Bd3 h5 61. gxh5 Nd5 62. Bc4 Nf4 63. Rb6 Nh3+ 64. Kg6 Nf4+ 65. Kh6 Nh3 66. Bd3 Nf4 67. Bg6 Rd8 68. Rb7 Rf8 69. Rd7 Ne6 70. b4 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.22"]
[Round "9"]
[White "Rossetto, Hector Decio"]
[Black "Sumar, Julio"]
[Result "1-0"]
[ECO "B05"]
[EventDate "1958.03.11"]
[PlyCount "47"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. O-O Be7 7. c4 Nb6 8. b3 Nc6 9. Bb2 dxe5 10. Nxe5 Bxe2 11. Qxe2 Nxe5 12. dxe5 O-O 13. Nc3 Re8 14. Rad1 Qc8 15. Ne4 Nd7 16. Rd3 Nf8 17. Nf6+ gxf6 18. exf6 Bd6 19. Rxd6 Kh8 20. Qh5 Ng6 21. Rd3 Rg8 22. Rh3 Nf8 23. Qxf7 Rg5 24. f4 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.23"]
[Round "10"]
[White "Emma, Jaime"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "E14"]
[EventDate "1958.03.11"]
[PlyCount "81"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. e3 d5 6. a3 Be7 7. Bd3 b6 8. b3 Bb7 9. Bb2 Nbd7 10. O-O Ne4 11. Qe2 a5 12. Rfd1 Bd6 13. Ne5 Qe7 14. Nxd7 Qxd7 15. f3 Nxd2 16. Rxd2 c5 17. e4 cxd4 18. Bxd4 Qc7 19. e5 Bc5 20. Qe3 Bxd4 21. Qxd4 dxc4 22. Rc1 Rad8 23. Rxc4 Qe7 24. Qxb6 Bd5 25. Rg4 Qxa3 26. Qe3 f5 27. exf6 Qa1+ 28. Kf2 Qxf6 29. Be4 h5 30. Rg6 Qh4+ 31. Ke2 Bxe4 32. Qxe4 Rxd2+ 33. Kxd2 Qf2+ 34. Kc1 Rc8+ 35. Kb1 Qg1+ 36. Ka2 Qf2+ 37. Kb1 Qg1+ 38. Ka2 Qc1 39. Qxe6+ Kh8 40. Rh6+ gxh6 41. Qf6+ 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.23"]
[Round "10"]
[White "Foguelman, Alberto"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "B32"]
[EventDate "1958.03.11"]
[PlyCount "83"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. N5c3 Nf6 7. Bg5 Bc5 8. Bc4 h6 9. Bxf6 Qxf6 10. O-O O-O 11. Nd2 d6 12. Nd5 Qh4 13. c3 Kh8 14. b4 Ba7 15. a4 Qd8 16. Qe2 Be6 17. Rad1 Rc8 18. Ne3 Bxe3 19. Qxe3 Qe7 20. Qb6 Nd8 21. Bxe6 Nxe6 22. Qe3 Qc7 23. c4 a5 24. b5 Nd4 25. Rc1 b6 26. Nf3 Ne6 27. Nh4 Nd4 28. Rfd1 Qc5 29. Nf3 Nxf3+ 30. Qxf3 Qb4 31. h4 Qxa4 32. Rxd6 Rxc4 33. Rxc4 Qxc4 34. Rxb6 a4 35. Rb7 Kg8 36. b6 Qb3 37. Qf5 a3 38. Qxe5 a2 39. Ra7 Qxb6 40. Qa5 Qb1+ 41. Kh2 Qxe4 42. g3 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.23"]
[Round "10"]
[White "Letelier Martner, Rene"]
[Black "Sumar, Julio"]
[Result "0-1"]
[ECO "C90"]
[EventDate "1958.03.11"]
[PlyCount "70"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d3 O-O 11. Nbd2 Qc7 12. Nf1 Re8 13. h3 Be6 14. Ng5 Rad8 15. f4 c4 16. d4 Bc8 17. Ng3 Nc6 18. Kh1 Nb8 19. Rf1 Nbd7 20. Be3 Nf8 21. Qe2 Ng6 22. f5 Nh4 23. d5 h6 24. Nf3 Nxf3 25. Rxf3 Nh7 26. Nh5 Bh4 27. f6 g6 28. Bxh6 gxh5 29. Bg7 Qa7 30. Raf1 a5 31. Rg3 Bxg3 32. Qxh5 Qe3 33. Bh6 Nxf6 34. Qg5+ Qxg5 35. Bxg5 Nh7 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.23"]
[Round "10"]
[White "Olivera, Alfredo"]
[Black "Behrensen, Jorge"]
[Result "1/2-1/2"]
[ECO "B67"]
[EventDate "1958.03.11"]
[PlyCount "89"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 h6 10. Bxf6 Qxf6 11. Nxc6 Bxc6 12. g4 g5 13. fxg5 Qxg5 14. Qxg5 hxg5 15. Bg2 Ke7 16. h3 Bg7 17. Rd3 Rac8 18. Kb1 Be5 19. Rf1 Rh6 20. Rf2 Rf6 21. Rxf6 Kxf6 22. b3 Rh8 23. Ne2 Rh6 24. Rf3+ Ke7 25. Rf2 b6 26. c4 Rf6 27. Rxf6 Bxf6 28. Kc2 Be5 29. Kd3 f5 30. Nd4 Bxd4 31. Kxd4 a5 32. gxf5 exf5 33. Bf3 Kf6 34. a3 Bb7 35. b4 axb4 36. axb4 Bc6 37. b5 Bb7 38. Ke3 fxe4 39. Bxe4 Bc8 40. Kd4 Bxh3 41. Kd5 Be6+ 42. Kxd6 Bxc4 43. Kc7 g4 44. Kxb6 Ke5 45. Bg2 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.23"]
[Round "10"]
[White "Panno, Oscar"]
[Black "Pilnik, Herman"]
[Result "0-1"]
[ECO "A56"]
[EventDate "1958.03.11"]
[PlyCount "214"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 g6 6. Be2 Na6 7. Nf3 Bg7 8. O-O Bg4 9. Ne1 Bxe2 10. Qxe2 O-O 11. Bg5 h6 12. Bd2 Nc7 13. Nd3 Nd7 14. a3 Kh7 15. b4 b6 16. Rab1 Qe7 17. bxc5 dxc5 18. f3 Ne8 19. Nf2 Nd6 20. a4 Rfb8 21. Rb2 Rb7 22. Rfb1 Rab8 23. Nb5 Nxb5 24. Rxb5 Nf6 25. Nd1 Ne8 26. Nc3 Qd7 27. Be3 Bf8 28. Bf2 f6 29. Qa2 Nc7 30. R5b3 Na6 31. h3 Nb4 32. Qe2 a5 33. Nb5 Re8 34. Kh2 Qd8 35. Rd1 Rd7 36. Rbb1 Bd6 37. Be1 Kg7 38. Bc3 Bb8 39. g3 Kh7 40. Rf1 Qe7 41. Rbe1 Qf7 42. Kg2 g5 43. h4 Rg8 44. Rh1 Rg6 45. hxg5 fxg5 46. g4 Qe8 47. Bb2 Rf7 48. Rh3 Na6 49. Nc3 Bd6 50. Qc2 Nb8 51. Nd1 Nd7 52. Ne3 Bf8 53. Nf5 Rff6 54. Qb3 Qb8 55. Bc3 Qc7 56. Rd1 Qd8 57. Rd3 Qc7 58. Rh1 Bd6 59. Qb5 Qd8 60. Qc6 Kg8 61. Rb1 Kh8 62. Rd2 Kg8 63. Qb7 Rf7 64. Qc6 Rff6 65. Ra1 Qe8 66. Kg3 Qd8 67. Rda2 Bf8 68. Qb5 Qe8 69. d6 Qe6 70. Rd2 Rf7 71. Rd5 Kh7 72. Qb2 Qf6 73. Rad1 Bg7 74. R1d3 Bh8 75. Qh2 Qd8 76. Rd1 Qf8 77. Rh1 Bg7 78. Qd2 Bf6 79. Kf2 Qe8 80. Qb2 Qe6 81. Ke3 Qe8 82. Qb5 Qd8 83. Qc6 Qf8 84. Ke2 Qe8 85. Bxa5 bxa5 86. Rxc5 Bd8 87. Rb1 Qe6 88. Rd5 Qf6 89. c5 Nf8 90. Rd2 Ne6 91. Kf2 Nd4 92. Qd5 h5 93. Rb7 Rgg7 94. Rdb2 Nxf5 95. exf5 e4 96. fxe4 Rxb7 97. Rxb7 Rxb7 98. Qxb7+ Kh6 99. gxh5 Qd4+ 100. Kf3 Qd3+ 101. Kg2 Qe2+ 102. Kg3 Bf6 103. Qd5 g4 104. Qe6 Qf3+ 105. Kh2 Kg5 106. e5 Qf2+ 107. Kh1 Kh4 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.23"]
[Round "10"]
[White "Pelikan, Jorge"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "A97"]
[EventDate "1958.03.11"]
[PlyCount "64"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 d6 4. d4 e6 5. c4 Be7 6. O-O O-O 7. Nc3 Qe8 8. Re1 d5 9. Qb3 c6 10. cxd5 exd5 11. e4 fxe4 12. Nxe4 Nxe4 13. Rxe4 Qf7 14. Ne5 Qxf2+ 15. Kh1 Bf6 16. Bf4 Bf5 17. Ree1 Bxe5 18. Bxe5 Nd7 19. Rf1 Qc2 20. Qxb7 Nxe5 21. Rfc1 Rab8 22. Qxb8 Rxb8 23. Rxc2 Bxc2 24. dxe5 Rxb2 25. Rf1 Rb1 26. Kg1 Rxf1+ 27. Kxf1 Kf7 28. Bh3 Bb1 29. a3 c5 30. Ke2 c4 31. Ke3 c3 32. Bg2 d4+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.23"]
[Round "10"]
[White "Reinhardt, Enrique"]
[Black "Lombardy, William James"]
[Result "0-1"]
[ECO "B26"]
[EventDate "1958.03.11"]
[PlyCount "74"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Rb8 7. Nge2 Nf6 8. h3 O-O 9. O-O Ne8 10. Qd2 Nd4 11. Kh2 b5 12. Nd1 Nxe2 13. Qxe2 Nc7 14. f4 b4 15. c4 Ne6 16. g4 Rb6 17. Rc1 Ra6 18. b3 Nd4 19. Bxd4 Bxd4 20. Rc2 Ra3 21. Ne3 a5 22. g5 a4 23. f5 axb3 24. axb3 Rxb3 25. Ng4 Ra3 26. h4 b3 27. Rb2 Qa5 28. Nh6+ Kg7 29. Rbb1 b2 30. fxg6 hxg6 31. Qf3 Be5+ 32. Kh1 Ra1 33. Rbd1 Qb4 34. Rb1 Qd2 35. Qd1 Rxb1 36. Qxb1 Bh3 37. Rg1 Qf4 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.23"]
[Round "10"]
[White "Sanguineti, Raul"]
[Black "Casas, Fernando"]
[Result "1-0"]
[ECO "B39"]
[EventDate "1958.03.11"]
[PlyCount "93"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Qd2 Qa5 11. Be2 d6 12. O-O g5 13. Rab1 h5 14. b4 Qe5 15. Nd5 Qxe4 16. c5 Be5 17. cxd6 exd6 18. Rfe1 Qh4 19. g3 Qh3 20. Bf1 Qf5 21. f4 gxf4 22. gxf4 Rg8+ 23. Bg2 Bh8 24. Bf2 Kf8 25. Bh4 Bd7 26. Be7+ Ke8 27. Bxd6 Kd8 28. Ne7 Rxg2+ 29. Qxg2 Qg4 30. h3 Qxg2+ 31. Kxg2 Bf6 32. Ng8 Bc6+ 33. Kg3 Bd4 34. Be5 h4+ 35. Kg4 Bf2 36. Red1+ Ke8 37. b5 Bg2 38. Rb2 f5+ 39. Kxf5 Bxh3+ 40. Kg6 Nf8+ 41. Kg7 Ne6+ 42. Kf6 Bb6 43. f5 Nc5 44. Kg5 Ne4+ 45. Kf4 Nc3 46. Nf6+ Kf8 47. Rd7 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.25"]
[Round "11"]
[White "Behrensen, Jorge"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "A37"]
[EventDate "1958.03.11"]
[PlyCount "60"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. c4 a6 6. Nc3 Rb8 7. a3 b5 8. cxb5 axb5 9. b4 cxb4 10. axb4 Nh6 11. Qb3 Nf5 12. e3 O-O 13. Bb2 Nd6 14. Ne2 Bxb2 15. Qxb2 Nc4 16. Qc3 Bb7 17. d3 Nb6 18. Ned4 Nd5 19. Nxc6 Nxc3 20. Nxd8 Rfxd8 21. Ra7 Bd5 22. Rfa1 f6 23. R1a5 Ra8 24. Rxa8 Rxa8 25. Nd4 Rb8 26. Nxb5 Ne2+ 27. Kf1 Bxg2+ 28. Kxe2 Bc6 29. Nd4 Rxb4 30. Nxc6 dxc6 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.25"]
[Round "11"]
[White "Casas, Fernando"]
[Black "Reinhardt, Enrique"]
[Result "1-0"]
[ECO "E36"]
[EventDate "1958.03.11"]
[PlyCount "71"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Nc6 7. e3 e5 8. dxe5 Ne4 9. Qd3 Nc5 10. Qc2 Nxe5 11. b4 Ne6 12. cxd5 Qxd5 13. Bb2 O-O 14. Rd1 Qc6 15. Qb3 Ng6 16. Nf3 Qe8 17. Bc4 b5 18. Bd5 c6 19. Be4 f5 20. Bb1 Kh8 21. O-O a5 22. Qc3 axb4 23. axb4 c5 24. bxc5 Qe7 25. Rd6 Ra4 26. Bd3 b4 27. Qc4 Ng5 28. Nxg5 Qxg5 29. f4 Qe7 30. Rf3 Qe8 31. Rg3 Rf7 32. Qd4 Qe7 33. Rd8+ Rf8 34. Qxg7+ Qxg7 35. Rxf8+ Nxf8 36. Rxg7 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.25"]
[Round "11"]
[White "Eliskases, Erich"]
[Black "Olivera, Alfredo"]
[Result "1-0"]
[ECO "E74"]
[EventDate "1958.03.11"]
[PlyCount "57"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e5 8. g4 Na6 9. h4 Nc7 10. f3 a6 11. a4 b6 12. Qd2 Bd7 13. Nh3 b5 14. Nf2 bxa4 15. Nd3 Qe7 16. h5 Rfb8 17. Nxc5 a3 18. Rxa3 dxc5 19. d6 Qe6 20. dxc7 Rc8 21. Bxf6 Bxf6 22. Nd5 Bg7 23. g5 gxh5 24. Bf1 Kf8 25. Bh3 Qc6 26. Bxd7 Qxd7 27. Rxh5 Rxc7 28. Rxh7 Rd8 29. Qh2 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.25"]
[Round "11"]
[White "Larsen, Bent"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "D34"]
[EventDate "1958.03.11"]
[PlyCount "104"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be6 10. Rc1 Ne4 11. Bxe7 Qxe7 12. dxc5 Rfd8 13. Nd4 Nxc5 14. Nxc6 bxc6 15. Qd4 Rac8 16. Rfd1 f5 17. e3 Ne4 18. Qe5 Qf7 19. Ne2 Re8 20. Nf4 g5 21. Nd3 c5 22. b4 Bd7 23. Qb2 c4 24. Ne5 Qf6 25. f4 gxf4 26. gxf4 Be6 27. Bxe4 dxe4 28. Rd2 h6 29. Qd4 Rc7 30. Rg2+ Kh7 31. Qd6 Rg7 32. Rxg7+ Qxg7+ 33. Kh1 Rg8 34. Qd2 c3 35. Qf2 Rd8 36. Qh4 Rg8 37. Qf2 Rd8 38. Rg1 Qf6 39. Qc2 Rc8 40. Rg6 Qxg6 41. Nxg6 Kxg6 42. b5 Kf6 43. Kg1 Ke7 44. Kf2 Bxa2 45. Qxa2 c2 46. Qa3+ Kd7 47. Qc1 Rc5 48. Kg3 Kc7 49. Kh4 Kb6 50. Kh5 Kxb5 51. Kxh6 a5 52. Kg5 a4 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.25"]
[Round "11"]
[White "Lombardy, William James"]
[Black "Letelier Martner, Rene"]
[Result "1-0"]
[ECO "C84"]
[EventDate "1958.03.11"]
[PlyCount "99"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O Be7 7. e5 Ne4 8. Nxd4 Nc5 9. Bxc6 dxc6 10. Re1 O-O 11. Nc3 Re8 12. Be3 Bf8 13. Qh5 g6 14. Qg5 Qxg5 15. Bxg5 Bg7 16. f4 a5 17. h3 h6 18. Bf6 Bxf6 19. exf6 Bd7 20. g4 b5 21. Nb3 Ne6 22. Ne2 a4 23. Nd2 c5 24. Kf2 b4 25. Ne4 Bc6 26. N4g3 Bb5 27. h4 Ra6 28. Rad1 Nf8 29. g5 Rae6 30. Nc1 Rxe1 31. Rxe1 Rxe1 32. Kxe1 hxg5 33. hxg5 Ne6 34. Nge2 Kf8 35. Kd2 Ke8 36. Nd3 Bc6 37. Ke3 Bd5 38. a3 Bc4 39. c3 bxa3 40. bxa3 Bd5 41. Ne5 Nd8 42. c4 Be6 43. Nc3 Bd7 44. Ke4 Ne6 45. Nxd7 Kxd7 46. Nxa4 Kc6 47. Nb2 Nd4 48. Nd3 Kd6 49. a4 Nb3 50. Ne5 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.25"]
[Round "11"]
[White "Pilnik, Herman"]
[Black "Pelikan, Jorge"]
[Result "1-0"]
[ECO "B32"]
[EventDate "1958.03.11"]
[PlyCount "63"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 Qg6 9. Nc3 Nge7 10. Be3 O-O 11. Qd2 d5 12. exd5 Nb4 13. O-O-O Bg4 14. Bc5 Nexd5 15. Nxd5 Nxd5 16. Qxd5 Bxd1 17. Bd3 Qg5+ 18. Be3 Rfd8 19. Qe4 Qg6 20. Qxg6 hxg6 21. Rxd1 Rac8 22. a4 Rd6 23. a5 Rcd8 24. Re1 Re8 25. Bc5 Rc6 26. b4 g5 27. Be4 Rc7 28. Rd1 g6 29. Rd6 Kg7 30. Rb6 f5 31. Bxb7 Ra8 32. Bd6 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.25"]
[Round "11"]
[White "Rossetto, Hector Decio"]
[Black "Panno, Oscar"]
[Result "1-0"]
[ECO "B43"]
[EventDate "1958.03.11"]
[PlyCount "109"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. Nc3 Bb4 7. O-O Qc7 8. Qd3 Nc6 9. Nxc6 bxc6 10. a3 Be7 11. f4 d5 12. e5 Nd7 13. Qg3 O-O 14. Kh1 f5 15. Bd2 a5 16. Rae1 Ba6 17. Qh3 d4 18. Nd1 Bxe2 19. Rxe2 c5 20. Qf3 c4 21. Nf2 Nb6 22. Bc1 a4 23. g4 Nd5 24. Rg1 Qc6 25. gxf5 exf5 26. Qg2 g6 27. Rd1 Bc5 28. h4 Ne7 29. Nh3 Ra6 30. Ng5 Qxg2+ 31. Kxg2 Rd8 32. Kf1 h6 33. Nf3 Kf7 34. Rg2 Re6 35. Rg3 Nc6 36. Nd2 Na5 37. Nf3 Ree8 38. h5 gxh5 39. Nh4 Ke6 40. Rg6+ Kd5 41. Nxf5 Ke4 42. Ng7 Rg8 43. Re1+ Kf3 44. f5 d3 45. Ne6 d2 46. Bxd2 Rxd2 47. Nxc5 Rxg6 48. fxg6 Rf2+ 49. Kg1 Rg2+ 50. Kh1 Rxg6 51. e6 Rg8 52. e7 Re8 53. Re6 c3 54. bxc3 Nc4 55. Na6 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.25"]
[Round "11"]
[White "Sumar, Julio"]
[Black "Foguelman, Alberto"]
[Result "0-1"]
[ECO "A13"]
[EventDate "1958.03.11"]
[PlyCount "72"]

1. Nf3 Nf6 2. g3 e6 3. b3 b6 4. Bg2 Bb7 5. O-O Be7 6. Bb2 O-O 7. c4 Ne8 8. Nc3 f5 9. d4 Bf6 10. Re1 Nd6 11. Ba3 Be7 12. Rc1 Ne4 13. Bxe7 Qxe7 14. d5 Nxc3 15. Rxc3 e5 16. Nh4 d6 17. e4 fxe4 18. Bh3 Qf6 19. Rxe4 Qxf2+ 20. Kh1 g6 21. Re2 Qc5 22. Re1 Na6 23. Be6+ Kg7 24. Qg4 Qf2 25. Rcc1 Nc5 26. Rf1 Qxf1+ 27. Rxf1 Rxf1+ 28. Kg2 Raf8 29. Kh3 Nxe6 30. dxe6 Bc8 31. Qg5 Bxe6+ 32. g4 R8f6 33. Kg2 R1f4 34. h3 h6 35. Nf5+ Bxf5 36. Qh4 Be4+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.26"]
[Round "12"]
[White "Emma, Jaime"]
[Black "Pilnik, Herman"]
[Result "1/2-1/2"]
[ECO "D95"]
[EventDate "1958.03.11"]
[PlyCount "59"]

1. d4 Nf6 2. Nf3 d5 3. e3 g6 4. c4 Bg7 5. Nc3 O-O 6. Qb3 c6 7. Bd2 e6 8. Be2 Nbd7 9. O-O Ne4 10. Rfd1 Nxd2 11. Rxd2 Qe7 12. Rc1 f5 13. a3 Kh8 14. Qb4 Qf6 15. Qd6 Re8 16. Qf4 h6 17. h4 Kh7 18. g3 dxc4 19. Bxc4 e5 20. dxe5 Nxe5 21. Nxe5 Qxe5 22. Qxe5 Bxe5 23. h5 gxh5 24. Bf7 Re7 25. Bxh5 Be6 26. Bf3 Rg8 27. Ne2 Rc7 28. Rc5 Bg7 29. Nf4 Rd7 30. Rcc2 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.26"]
[Round "12"]
[White "Letelier Martner, Rene"]
[Black "Foguelman, Alberto"]
[Result "1/2-1/2"]
[ECO "A17"]
[EventDate "1958.03.11"]
[PlyCount "123"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. e3 Nbd7 5. b3 Be7 6. Be2 c6 7. O-O Ne4 8. cxd5 exd5 9. Qc2 Nxc3 10. dxc3 O-O 11. c4 dxc4 12. bxc4 Bf6 13. Rb1 Qe7 14. Nd4 g6 15. Bg4 Ne5 16. Bxc8 Rfxc8 17. h3 b6 18. Bd2 Rab8 19. Qa4 Qc5 20. Rfc1 Nd3 21. Rc3 Nf4 22. exf4 Qxd4 23. Rc2 Rc7 24. Qb3 Rd8 25. f5 c5 26. Bc3 Qd6 27. Bxf6 Qxf6 28. fxg6 hxg6 29. Re1 Rcd7 30. Rce2 Rd3 31. Qa4 Rd2 32. Qb3 R8d3 33. Qa4 Kg7 34. Rxd2 Rxd2 35. Rf1 Qb2 36. Qxa7 Qxa2 37. Qxa2 Rxa2 38. Rb1 Ra6 39. f4 Kf6 40. g4 g5 41. Kf2 gxf4 42. Kf3 Ra4 43. Rc1 Ke5 44. Re1+ Kd4 45. Re4+ Kd3 46. Rxf4 Rxc4 47. Rxf7 b5 48. g5 Rh4 49. Rd7+ Kc3 50. Kg3 Rh8 51. h4 b4 52. Kg4 b3 53. g6 b2 54. Rb7 c4 55. h5 Kc2 56. g7 Rg8 57. h6 b1=Q 58. Rxb1 Kxb1 59. Kf5 c3 60. h7 Rxg7 61. h8=Q c2 62. Qxg7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.26"]
[Round "12"]
[White "Lombardy, William James"]
[Black "Casas, Fernando"]
[Result "1-0"]
[ECO "A26"]
[EventDate "1958.03.11"]
[PlyCount "87"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 O-O 5. O-O d6 6. Nc3 Nc6 7. Rb1 a5 8. a3 e5 9. d3 h6 10. Ne1 Ne7 11. Bd2 c6 12. Rc1 Be6 13. f4 Qb6+ 14. e3 Ng4 15. Na4 Qa7 16. c5 exf4 17. gxf4 dxc5 18. h3 Nf6 19. Nxc5 Nfd5 20. d4 Nf5 21. Nc2 Rad8 22. Nxe6 fxe6 23. Qe1 a4 24. Kh2 Nc7 25. Nb4 Bf6 26. Qe2 Kh7 27. Be4 Nd5 28. Rg1 Rg8 29. Bb1 Nxb4 30. Bxb4 Qb8 31. Kh1 Bh4 32. Bc2 Qc8 33. Bc3 Qd7 34. Qf3 g5 35. Rg4 Rg6 36. Rcg1 Rdg8 37. e4 Nxd4 38. Bxd4 Qxd4 39. e5 Qxb2 40. Bxg6+ Rxg6 41. Rxh4 Qb3 42. Qxb3 axb3 43. fxg5 c5 44. Rb1 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.26"]
[Round "12"]
[White "Olivera, Alfredo"]
[Black "Larsen, Bent"]
[Result "0-1"]
[ECO "B50"]
[EventDate "1958.03.11"]
[PlyCount "74"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. e5 dxe5 5. Nxe5 Nbd7 6. f4 e6 7. d4 Nxe5 8. fxe5 Nd5 9. Bb5+ Bd7 10. Bxd7+ Qxd7 11. O-O Rc8 12. dxc5 Bxc5+ 13. Kh1 O-O 14. Qe2 f5 15. exf6 Rxf6 16. Rxf6 Nxf6 17. Be3 Bxe3 18. Qxe3 Qd1+ 19. Qg1 Qe2 20. Na3 Qxb2 21. Qe1 e5 22. Qc1 Qe2 23. h3 Ne4 24. Qe1 Rxc3 25. Qxe2 Ng3+ 26. Kh2 Nxe2 27. Nb5 Rc2 28. Rd1 Nf4 29. Rd8+ Kf7 30. Rd7+ Kf6 31. Rxb7 Rxg2+ 32. Kh1 Rxa2 33. Nxa7 e4 34. Nc6 e3 35. Rb4 Ra1+ 36. Kh2 Nd3 37. Re4 Ra2+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.26"]
[Round "12"]
[White "Panno, Oscar"]
[Black "Sumar, Julio"]
[Result "1/2-1/2"]
[ECO "C81"]
[EventDate "1958.03.11"]
[PlyCount "66"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Nc5 10. Rd1 Nxb3 11. axb3 Be7 12. c4 bxc4 13. bxc4 O-O 14. Be3 Nb4 15. cxd5 Nxd5 16. Rxa6 Rxa6 17. Qxa6 Qb8 18. Bc1 Qb3 19. Qe2 c5 20. Na3 h6 21. h3 Rb8 22. Kh2 Rb4 23. g3 Re4 24. Qd3 Qxd3 25. Rxd3 Nb4 26. Rd1 Nc6 27. Bf4 g5 28. Be3 Nxe5 29. Nxe5 Rxe5 30. Rc1 Kh7 31. Nc4 Re4 32. b3 Bd5 33. Nd2 Rb4 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.26"]
[Round "12"]
[White "Pelikan, Jorge"]
[Black "Rossetto, Hector Decio"]
[Result "0-1"]
[ECO "A04"]
[EventDate "1958.03.11"]
[PlyCount "69"]

1. Nf3 c5 2. e4 e6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O Nge7 7. c3 O-O 8. Be3 b6 9. Qc1 Ba6 10. Rd1 Rc8 11. Bh6 Qc7 12. Bxg7 Kxg7 13. Na3 f5 14. Qd2 h6 15. b4 cxb4 16. cxb4 Ne5 17. Qb2 Qc3 18. Qxc3 Rxc3 19. Nxe5 Rxa3 20. Nxd7 Rc8 21. Ne5 Rc2 22. Rdc1 Raxa2 23. Rxa2 Rxc1+ 24. Bf1 Bb5 25. exf5 exf5 26. Rxa7 Kf6 27. Nc4 Nd5 28. Rb7 Bc6 29. Rb8 f4 30. gxf4 Nxf4 31. Rf8+ Kg5 32. h4+ Kxh4 33. Rxf4+ Kg5 34. Rd4 Bf3 35. Nd2 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.26"]
[Round "12"]
[White "Reinhardt, Enrique"]
[Black "Behrensen, Jorge"]
[Result "1-0"]
[ECO "B24"]
[EventDate "1958.03.11"]
[PlyCount "83"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2 Ne7 8. c3 Nxe2 9. Nxe2 b6 10. d4 Qc7 11. O-O Bb7 12. d5 exd5 13. exd5 d6 14. Qd2 O-O 15. Rfe1 Rfe8 16. Rad1 b5 17. g4 Nc8 18. Bh6 Nb6 19. Bxg7 Kxg7 20. b3 Re5 21. f4 Ree8 22. Ng3 Qd7 23. f5 Re5 24. Rxe5 dxe5 25. Qg5 Qd8 26. f6+ Kh8 27. Qxe5 Qd7 28. Qg5 c4 29. Nf5 Qd8 30. Ne7 Qd6 31. b4 Nd7 32. Rf1 Re8 33. Nf5 Qb6+ 34. Nd4 a6 35. Qh4 Qd6 36. Nc6 Qf8 37. Ne7 h6 38. g5 Kh7 39. Re1 Rd8 40. Nxg6 fxg6 41. Re7+ Kg8 42. Qe4 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.26"]
[Round "12"]
[White "Sanguineti, Raul"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "C84"]
[EventDate "1958.03.11"]
[PlyCount "80"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d4 exd4 7. e5 Ne4 8. Nxd4 Nxd4 9. Qxd4 Nc5 10. Nc3 O-O 11. Be3 d6 12. Rad1 Nxa4 13. Qxa4 Bd7 14. Qd4 Bc6 15. Bf4 dxe5 16. Qxe5 Bd6 17. Qd4 Bxf4 18. Qxf4 Qf6 19. Qxf6 gxf6 20. Nd5 Bxd5 21. Rxd5 Rad8 22. Rfd1 Rxd5 23. Rxd5 Re8 24. Kf1 Re6 25. Rc5 c6 26. Rc3 f5 27. Rc5 Rf6 28. Ke2 Kg7 29. Re5 Re6 30. Re3 Kf6 31. Kf3 Rxe3+ 32. Kxe3 Ke5 33. Kf3 a5 34. g3 b5 35. Ke3 b4 36. Kd3 Kd5 37. c3 c5 38. b3 f4 39. c4+ Ke5 40. g4 h6 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.28"]
[Round "13"]
[White "Behrensen, Jorge"]
[Black "Lombardy, William James"]
[Result "0-1"]
[ECO "A47"]
[EventDate "1958.03.11"]
[PlyCount "56"]

1. Nf3 Nf6 2. d4 e6 3. Nbd2 c5 4. e3 b6 5. Bd3 Bb7 6. O-O Nc6 7. b3 Be7 8. Bb2 O-O 9. a3 Qc7 10. Qe2 cxd4 11. exd4 Nd5 12. g3 Nf6 13. c4 d5 14. Rac1 dxc4 15. Nxc4 Rac8 16. Rfe1 Qb8 17. Nce5 h6 18. d5 Nxe5 19. Bxe5 Qa8 20. Rxc8 Rxc8 21. Nd4 Bxd5 22. h4 Nd7 23. Bf4 Bf6 24. Nb5 e5 25. Bd2 Nc5 26. Bf5 Ne6 27. Nd6 Nd4 28. Qd3 Nf3+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.28"]
[Round "13"]
[White "Casas, Fernando"]
[Black "Letelier Martner, Rene"]
[Result "0-1"]
[ECO "D52"]
[EventDate "1958.03.11"]
[PlyCount "114"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 exd5 8. Bd3 Ne4 9. O-O Nxg5 10. Nxg5 Be7 11. Qh5 g6 12. Qh6 Bf8 13. Qh4 h6 14. Nf3 Qc7 15. Rac1 Qd6 16. Qf4 Qxf4 17. exf4 Bd6 18. Rfe1+ Kf8 19. Ne5 Kg7 20. a3 Nf8 21. b4 f6 22. Nf3 Bxf4 23. Re7+ Kg8 24. Rce1 Bd6 25. Re8 Kf7 26. Nh4 Rg8 27. f4 f5 28. Kf2 Rb8 29. g3 Be6 30. Rxb8 Bxb8 31. Nf3 Nd7 32. Ne5+ Bxe5 33. dxe5 Rd8 34. Na4 b5 35. Nc3 a6 36. Ne2 c5 37. bxc5 Nxc5 38. Bc2 d4 39. Rd1 d3 40. Nc1 d2 41. Ne2 Nd3+ 42. Bxd3 Rxd3 43. Ng1 Rxa3 44. Rxd2 b4 45. Rd6 b3 46. Rb6 Ra2+ 47. Ke3 Bc4 48. Rb4 b2 49. Kd4 Bb5 50. Kc5 Ra1 51. Rxb2 Rxg1 52. Rd2 Rc1+ 53. Kd6 Rc6+ 54. Kd5 Ke7 55. Rb2 Kd7 56. Rd2 Bc4+ 57. Kd4 Be6 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.28"]
[Round "13"]
[White "Eliskases, Erich"]
[Black "Reinhardt, Enrique"]
[Result "1-0"]
[ECO "E74"]
[EventDate "1958.03.11"]
[PlyCount "93"]

1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 Qa5 8. Bd2 e6 9. Nf3 exd5 10. exd5 Qd8 11. O-O Re8 12. Qc1 Ne4 13. Nxe4 Rxe4 14. Bd3 Re8 15. Bc3 Bg4 16. Bxg7 Kxg7 17. Qc3+ Qf6 18. Qxf6+ Kxf6 19. Nd2 Bf5 20. Bxf5 gxf5 21. Rfe1 Nd7 22. f4 a6 23. a4 a5 24. Kf2 Nb6 25. b3 Nd7 26. h3 Kg6 27. Nf3 h5 28. Nh4+ Kf6 29. Rxe8 Rxe8 30. Re1 Rh8 31. Re3 Nb8 32. Rg3 Na6 33. Rg5 Nb4 34. Nxf5 Nd3+ 35. Ke3 Nc1 36. Nxd6 Nxb3 37. Ne4+ Ke7 38. d6+ Kd7 39. Nxc5+ Nxc5 40. Rxc5 b6 41. Rb5 Rg8 42. Rxb6 Rxg2 43. c5 Rg3+ 44. Kd4 Rxh3 45. Rb7+ Kc8 46. c6 Ra3 47. d7+ 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.28"]
[Round "13"]
[White "Foguelman, Alberto"]
[Black "Panno, Oscar"]
[Result "1/2-1/2"]
[ECO "D75"]
[EventDate "1958.03.11"]
[PlyCount "64"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nxc3 7. bxc3 c5 8. Nf3 Nc6 9. Bb2 O-O 10. O-O Bg4 11. d5 Bxf3 12. exf3 Ne5 13. f4 Nc4 14. Qe2 b5 15. Rad1 Qd6 16. Ba1 Rab8 17. Rfe1 Rfe8 18. a4 a6 19. Bf1 Qb6 20. Qa2 Nd6 21. c4 Bxa1 22. Rxa1 b4 23. a5 Qc7 24. Bd3 b3 25. Qb2 Rb4 26. Ra3 Nxc4 27. Bxc4 Rxc4 28. Rxb3 Rd4 29. Rb6 Rxd5 30. Rxa6 c4 31. Qb6 Qc5 32. Ra7 c3 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.28"]
[Round "13"]
[White "Larsen, Bent"]
[Black "Sanguineti, Raul"]
[Result "1-0"]
[ECO "A37"]
[EventDate "1958.03.11"]
[PlyCount "67"]

1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nf3 Bg7 5. O-O d6 6. Nc3 Nh6 7. a3 O-O 8. Rb1 Bf5 9. d3 Qd7 10. Nd5 Rab8 11. b4 cxb4 12. Nxb4 Bh3 13. Bb2 Bxg2 14. Kxg2 Nf5 15. Bxg7 Kxg7 16. Qa4 Rfd8 17. Nxc6 bxc6 18. e4 Nh6 19. Nd4 Rxb1 20. Rxb1 c5 21. Qxd7 Rxd7 22. Nc2 Ng4 23. f4 f5 24. h3 Nf6 25. Kf3 e6 26. Ne3 Ng8 27. exf5 gxf5 28. g4 fxg4+ 29. hxg4 Ne7 30. f5 Kf6 31. Kf4 d5 32. g5+ Kf7 33. Ng4 Nc6 34. Rh1 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.28"]
[Round "13"]
[White "Pilnik, Herman"]
[Black "Olivera, Alfredo"]
[Result "1-0"]
[ECO "C00"]
[EventDate "1958.03.11"]
[PlyCount "89"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. g3 Nc6 5. Bg2 d4 6. a4 e5 7. Ngf3 Bg4 8. Nc4 f6 9. h3 Be6 10. Nh4 g6 11. O-O Qd7 12. Kh2 Bh6 13. f4 Bxc4 14. dxc4 O-O-O 15. Bd2 exf4 16. gxf4 Nge7 17. a5 a6 18. Ra3 Qe6 19. Qe2 g5 20. Qh5 gxh4 21. Qxh6 Qxc4 22. Qxf6 Rhg8 23. Rf2 Qxc2 24. Qe6+ Rd7 25. f5 Nd8 26. Qh6 Nec6 27. Qxh4 Qxb2 28. Rg3 Rxg3 29. Qxg3 d3 30. f6 Qe5 31. h4 Nf7 32. Bh3 Qxg3+ 33. Kxg3 Kd8 34. Bxd7 Kxd7 35. Rf5 Nce5 36. Bc3 Ke6 37. Kf2 Nd7 38. Ke3 c4 39. Rf1 b5 40. axb6 Nxb6 41. Ra1 Nc8 42. Rxa6+ Ncd6 43. Ra7 Nc8 44. Rc7 Nfd6 45. f7 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.28"]
[Round "13"]
[White "Rossetto, Hector Decio"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "B00"]
[EventDate "1958.03.11"]
[PlyCount "92"]

1. e4 Nc6 2. Nf3 d6 3. d4 Bg4 4. c3 Nf6 5. h3 Bh5 6. Nbd2 e6 7. Bb5 a6 8. Ba4 Be7 9. O-O O-O 10. Qe2 Bg6 11. Nh2 d5 12. e5 Ne4 13. Nxe4 Bxe4 14. Bc2 Bxc2 15. Qxc2 f5 16. exf6 Bxf6 17. Ng4 Qd7 18. Bd2 e5 19. dxe5 Nxe5 20. Nxe5 Bxe5 21. Rad1 Rf7 22. Be3 c6 23. f4 Bf6 24. Rf3 Re8 25. Bc5 Be7 26. Bd4 Bd6 27. Qf2 Re4 28. f5 Be5 29. Bxe5 Rxe5 30. Rf1 Qe8 31. a4 Re2 32. Qb6 Re1 33. a5 Rxf1+ 34. Rxf1 h6 35. Qd4 Qe2 36. b4 Re7 37. Qh4 Qe3+ 38. Kh1 Rf7 39. Rf3 Qe4 40. Qxe4 dxe4 41. Rf4 e3 42. Kg1 e2 43. Kf2 Re7 44. Ke1 Kf7 45. Rf2 Re3 46. Rxe2 Rxc3 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.28"]
[Round "13"]
[White "Sumar, Julio"]
[Black "Pelikan, Jorge"]
[Result "1/2-1/2"]
[ECO "A97"]
[EventDate "1958.03.11"]
[PlyCount "112"]

1. Nf3 f5 2. d4 Nf6 3. g3 e6 4. Bg2 Be7 5. c4 d6 6. Nc3 O-O 7. O-O Qe8 8. Re1 Na6 9. e4 Nxe4 10. Nxe4 fxe4 11. Rxe4 Rb8 12. Bg5 Bxg5 13. Nxg5 c6 14. Nxe6 Bxe6 15. Qe2 Bxc4 16. Qxc4+ Qf7 17. Qe2 Rbe8 18. Re1 Nc7 19. a3 Rxe4 20. Bxe4 d5 21. Bg2 Qf6 22. Qd2 Re8 23. Rd1 Nb5 24. Bf1 Nd6 25. Bd3 g6 26. Qc2 Kg7 27. Kg2 Ne4 28. Bxe4 Rxe4 29. Qd3 g5 30. Rd2 Qe6 31. h3 h5 32. Rd1 Re2 33. Rd2 Re1 34. Rd1 Qe4+ 35. Qxe4 Rxe4 36. Kf1 Kf6 37. Rd3 g4 38. hxg4 hxg4 39. Rd2 Kf5 40. Kg2 Re1 41. f3 Re3 42. Rf2 a5 43. fxg4+ Kxg4 44. Rf4+ Kg5 45. Kh3 Re2 46. Rg4+ Kf6 47. Rf4+ Ke6 48. g4 Rxb2 49. g5 Rb3+ 50. Kh2 Rb2+ 51. Kh1 Rb1+ 52. Kg2 Rb2+ 53. Kg1 Rb1+ 54. Kg2 Rb2+ 55. Kg3 Rb3+ 56. Kh2 Rb2+ 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.29"]
[Round "14"]
[White "Casas, Fernando"]
[Black "Behrensen, Jorge"]
[Result "1/2-1/2"]
[ECO "B41"]
[EventDate "1958.03.11"]
[PlyCount "111"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. Bf3 Qc7 7. O-O Nc6 8. Nxc6 bxc6 9. c4 Rb8 10. Nc3 Bd6 11. g3 h5 12. h4 Be5 13. Na4 c5 14. Re1 Rb4 15. a3 Rxc4 16. Qb3 Qa5 17. Qxc4 Qxe1+ 18. Kg2 d6 19. Nxc5 Qa5 20. Nd3 Bb7 21. Nxe5 dxe5 22. Bg5 Ng4 23. b4 Qb5 24. Qxb5+ axb5 25. Be2 Bxe4+ 26. f3 Bc6 27. Rc1 Kd7 28. Rxc6 Kxc6 29. fxg4 hxg4 30. Bxg4 f5 31. Bd1 Ra8 32. Bc1 g6 33. Kf3 Kd5 34. Bb3+ Kd6 35. Bb2 Ra7 36. Ke3 g5 37. hxg5 Rg7 38. Kf2 Rxg5 39. Bd1 Rg7 40. a4 bxa4 41. Bxa4 Rh7 42. Bc1 Rh2+ 43. Ke3 Rg2 44. Kf3 Ra2 45. Bb3 e4+ 46. Ke3 Rg2 47. Kd4 e5+ 48. Kc4 Rxg3 49. b5 e3 50. Ba3+ Kc7 51. Bb2 Kb6 52. Bxe5 Rg4+ 53. Kd3 e2 54. Kxe2 Re4+ 55. Kf3 Rxe5 56. Kf4 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.29"]
[Round "14"]
[White "Emma, Jaime"]
[Black "Sumar, Julio"]
[Result "1/2-1/2"]
[ECO "D05"]
[EventDate "1958.03.11"]
[PlyCount "94"]

1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Bd3 c5 5. c3 Nbd7 6. Nbd2 cxd4 7. exd4 Qc7 8. O-O Bd6 9. Re1 O-O 10. Qe2 Re8 11. Ne5 Nf8 12. Ndf3 N6d7 13. Ng5 Nxe5 14. dxe5 Bxe5 15. Qxe5 Qxe5 16. Rxe5 f6 17. Re2 fxg5 18. Bxg5 Bd7 19. Rae1 a6 20. f4 Rec8 21. f5 h6 22. Bh4 exf5 23. Re7 Re8 24. Rxe8 Rxe8 25. Rxe8 Bxe8 26. Bxf5 Kf7 27. Kf2 Ne6 28. Ke3 Bc6 29. g4 Bd7 30. Bg3 g6 31. Bc2 Kf6 32. Bd1 Bc6 33. Bd6 Kf7 34. Be5 Ng5 35. Bf4 Kf6 36. h4 Nf7 37. Kd4 g5 38. Bg3 gxh4 39. Bxh4+ Ke6 40. Bg3 Ng5 41. Bc2 Nf3+ 42. Kc5 Kf6 43. Bf4 Ne5 44. Bxh6 Nxg4 45. Bf4 Ke6 46. Bd3 Nf6 47. Kb6 d4 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.29"]
[Round "14"]
[White "Letelier Martner, Rene"]
[Black "Panno, Oscar"]
[Result "0-1"]
[ECO "E96"]
[EventDate "1958.03.11"]
[PlyCount "80"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. Re1 c6 9. Bf1 a5 10. dxe5 dxe5 11. Na4 Qe7 12. Qc2 Nc5 13. Nxc5 Qxc5 14. h3 Nh5 15. Be3 Qe7 16. c5 Nf4 17. Rad1 Rd8 18. Rxd8+ Qxd8 19. Qd2 Be6 20. b3 Qf6 21. Rd1 h6 22. Ne1 Kh7 23. Nd3 Nxd3 24. Bxd3 Bf8 25. Qc3 a4 26. f4 axb3 27. axb3 Bg7 28. f5 gxf5 29. Rf1 Rd8 30. exf5 Bd5 31. Qc2 Kh8 32. b4 Qh4 33. Bf2 Qxb4 34. f6 Bxf6 35. Be1 Qd4+ 36. Bf2 Qf4 37. Be1 Qe3+ 38. Bf2 Qg5 39. Be1 Rg8 40. g4 Qe3+ 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.29"]
[Round "14"]
[White "Lombardy, William James"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "E09"]
[EventDate "1958.03.11"]
[PlyCount "62"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. d4 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 b6 9. b3 Bb7 10. Bb2 Rc8 11. e4 dxe4 12. Nxe4 c5 13. Nxf6+ Nxf6 14. Rad1 Qc7 15. dxc5 Bxf3 16. Bxf3 bxc5 17. Rd2 Rfd8 18. Rfd1 Ne8 19. Rxd8 Rxd8 20. Rxd8 Qxd8 21. Qe4 Nd6 22. Qa8 Qxa8 23. Bxa8 Bf6 24. Bc1 Bd4 25. Bf4 e5 26. Bd2 Kf8 27. Bd5 f5 28. Kf1 Ke7 29. Ke2 Ne8 30. Bb7 Kd7 31. h3 Nc7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.29"]
[Round "14"]
[White "Olivera, Alfredo"]
[Black "Rossetto, Hector Decio"]
[Result "0-1"]
[ECO "D25"]
[EventDate "1958.03.11"]
[PlyCount "90"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g6 5. Bxc4 Bg7 6. Qb3 O-O 7. Ng5 e6 8. f4 c5 9. dxc5 h6 10. Nf3 Nbd7 11. c6 bxc6 12. O-O Rb8 13. Qc2 Qb6 14. Nc3 Nd5 15. Na4 Nxe3 16. Qe2 Qb4 17. Bxe3 Qxa4 18. b3 Qa5 19. Rac1 Nb6 20. Ne5 Bb7 21. Kh1 Nxc4 22. Nxc4 Qa6 23. Qf2 Ra8 24. Bc5 Rfd8 25. Nd6 Rd7 26. Rfd1 Rad8 27. Rd2 Qa5 28. Nxb7 Qxd2 29. Qxd2 Rxd2 30. Nxd8 Rxd8 31. g3 Rd7 32. Rc4 Rd1+ 33. Bg1 c5 34. Kg2 Bd4 35. Bxd4 Rxd4 36. Rxd4 cxd4 37. Kf3 f6 38. Ke4 e5 39. fxe5 fxe5 40. b4 Kf7 41. Kd3 Ke6 42. Kc4 Kd6 43. h3 Kc6 44. g4 g5 45. a4 a6 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.29"]
[Round "14"]
[White "Pelikan, Jorge"]
[Black "Foguelman, Alberto"]
[Result "0-1"]
[ECO "A05"]
[EventDate "1958.03.11"]
[PlyCount "94"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. d3 Be7 6. e4 d6 7. Nc3 O-O 8. Ne2 Nbd7 9. Ne1 c5 10. e5 Bxg2 11. exf6 Bxf1 12. fxe7 Qxe7 13. Kxf1 f5 14. Nf3 h6 15. d4 Rad8 16. Nf4 Rf6 17. h4 Nf8 18. Be3 Qb7 19. dxc5 bxc5 20. b3 Nh7 21. Nh5 Rff8 22. Nf4 Rfe8 23. Kg1 Nf6 24. Nh2 e5 25. Nh5 Nh7 26. Qd3 Qf7 27. g4 f4 28. Bd2 g6 29. Ng3 fxg3 30. fxg3 Qg7 31. Qd5+ Kh8 32. Rf1 Rf8 33. g5 Rxf1+ 34. Nxf1 h5 35. Bc3 Nf8 36. Ne3 Qe7 37. b4 cxb4 38. Bxb4 Qe6 39. Qxe6 Nxe6 40. Nc4 Rc8 41. Ne3 Rc6 42. Kf2 Kg8 43. c3 Kf7 44. g4 hxg4 45. Kg3 Nf4 46. Kxg4 Ke6 47. c4 Ng2 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.29"]
[Round "14"]
[White "Reinhardt, Enrique"]
[Black "Larsen, Bent"]
[Result "1/2-1/2"]
[ECO "B26"]
[EventDate "1958.03.11"]
[PlyCount "158"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 d6 6. Be3 Nf6 7. h3 O-O 8. Qd2 e5 9. g4 Be6 10. Bg5 Qa5 11. Nge2 Nd4 12. Ng3 c4 13. O-O b5 14. f4 b4 15. Nce2 exf4 16. Qxf4 Nd7 17. Bh6 Qc5 18. Kh1 Be5 19. Qd2 c3 20. bxc3 bxc3 21. Qc1 Rfb8 22. Nxd4 Qxd4 23. Ne2 Qb6 24. Be3 Qa6 25. Rf2 Bg7 26. d4 Nf6 27. g5 Nh5 28. Nxc3 Ng3+ 29. Kh2 Rc8 30. Qd2 Qc4 31. Nd1 Nh5 32. c3 Rab8 33. Bf1 Qc7 34. Be2 d5+ 35. e5 Qd7 36. Rf3 Bf5 37. Nf2 a5 38. Bd3 Bxd3 39. Nxd3 Qb7 40. Raf1 Rc7 41. R1f2 Bf8 42. Nf4 Ng7 43. Qd3 Qc6 44. Bc1 Be7 45. Ng2 Nf5 46. Bf4 a4 47. e6 fxe6 48. Bxc7 Qxc7+ 49. Kh1 Bxg5 50. Nf4 Rb6 51. Rf1 a3 52. Ng2 Rb2 53. Qa6 Qe7 54. Re1 Kf7 55. c4 dxc4 56. Qxc4 Qd6 57. Rb3 Bf6 58. Qa4 Rxb3 59. Qxb3 Ng3+ 60. Kh2 Ne4+ 61. Kh1 Nf2+ 62. Kg1 Qxd4 63. Qxe6+ Kg7 64. Kh2 Nd3 65. Rf1 Be5+ 66. Kh1 Nf2+ 67. Rxf2 Qd1+ 68. Ne1 Qxe1+ 69. Kg2 Qe4+ 70. Kf1 Qh1+ 71. Ke2 Qe4+ 72. Kd1 Qd3+ 73. Rd2 Qb1+ 74. Ke2 Qe4+ 75. Kf1 Qf3+ 76. Rf2 Qh1+ 77. Ke2 Qe4+ 78. Kd1 Qd3+ 79. Rd2 Qb1+ 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.03.29"]
[Round "14"]
[White "Sanguineti, Raul"]
[Black "Pilnik, Herman"]
[Result "1/2-1/2"]
[ECO "B20"]
[EventDate "1958.03.11"]
[PlyCount "67"]

1. e4 c5 2. Ne2 e6 3. g3 d5 4. Bg2 dxe4 5. Bxe4 Nf6 6. Bg2 Be7 7. O-O Nc6 8. Na3 O-O 9. Nc4 Nd5 10. Nc3 Nxc3 11. bxc3 Na5 12. Qe2 Nxc4 13. Qxc4 Rb8 14. a4 b6 15. d3 Bb7 16. Bf4 Bxg2 17. Kxg2 Rb7 18. Qe4 Rd7 19. c4 Bf6 20. Ra3 g6 21. Rb1 Bg7 22. a5 e5 23. axb6 axb6 24. Bd2 f5 25. Qc6 Rf6 26. Qa8 Re6 27. Qxd8+ Rxd8 28. Ra6 Rdd6 29. Bc3 Bf6 30. Ra8+ Kf7 31. Ra7+ Re7 32. Rxe7+ Kxe7 33. Bd2 Kd7 34. Ra1 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.04.01"]
[Round "15"]
[White "Behrensen, Jorge"]
[Black "Letelier Martner, Rene"]
[Result "1/2-1/2"]
[ECO "A07"]
[EventDate "1958.03.11"]
[PlyCount "80"]

1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 6. e4 O-O 7. exd5 Nxd5 8. Bg5 f6 9. Bd2 Be6 10. Nc3 Ne7 11. Qc1 Nbc6 12. Ne4 b6 13. Re1 Qd7 14. Bh6 Rac8 15. Bxg7 Kxg7 16. h4 h6 17. Ned2 Nd8 18. b4 c5 19. bxc5 Rxc5 20. Qb2 Rb5 21. Qa3 Ra5 22. Qb2 Rb5 23. Qa3 Nf7 24. d4 exd4 25. Nxd4 Qxd4 26. Qxe7 Qxd2 27. Qxe6 Re5 28. Qb3 Rd8 29. Bf3 Qa5 30. a4 h5 31. Red1 Rxd1+ 32. Rxd1 Re7 33. Kg2 Qe5 34. Qb4 Rc7 35. Rb1 Qc5 36. a5 bxa5 37. Qxc5 Rxc5 38. Rb7 Kf8 39. Rxa7 Ne5 40. Be4 f5 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.04.01"]
[Round "15"]
[White "Eliskases, Erich"]
[Black "Casas, Fernando"]
[Result "1/2-1/2"]
[ECO "A61"]
[EventDate "1958.03.11"]
[PlyCount "44"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 Bg7 8. Nd2 Nfd7 9. Nde4 Qb6 10. Qb3 O-O 11. Qxb6 Nxb6 12. Nxd6 Na6 13. Bg2 Nb4 14. O-O Bxc3 15. bxc3 N4xd5 16. a4 a5 17. Ne4 Bf5 18. Nxc5 Nxc3 19. e4 Be6 20. Bb2 Rfc8 21. Nxe6 fxe6 22. Bh3 Kf7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.04.01"]
[Round "15"]
[White "Foguelman, Alberto"]
[Black "Emma, Jaime"]
[Result "0-1"]
[ECO "C13"]
[EventDate "1958.03.11"]
[PlyCount "80"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 b6 8. Bb5+ c6 9. Bc4 Bb7 10. Qe2 Qc7 11. O-O-O Nd7 12. g3 O-O-O 13. Ba6 Nb8 14. Bxb7+ Kxb7 15. Rhe1 Rd5 16. Kb1 Rhd8 17. c4 R5d7 18. Nc3 Bb4 19. Qc2 f5 20. a3 Bxc3 21. Qxc3 Rd6 22. Ne5 Qe7 23. b4 Nd7 24. c5 Rd5 25. Nxc6 Kxc6 26. b5+ Kb7 27. c6+ Kc7 28. cxd7+ Kb8 29. Re5 Qxd7 30. Rxd5 Qxd5 31. Rc1 Qxb5+ 32. Ka1 Qd7 33. d5 Kb7 34. dxe6 fxe6 35. Re1 Qd5 36. f4 Rc8 37. Qe5 Qd3 38. Qb2 Rc3 39. Qb4 Rb3 40. Qe7+ Ka6 0-1

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.04.01"]
[Round "15"]
[White "Larsen, Bent"]
[Black "Lombardy, William James"]
[Result "1/2-1/2"]
[ECO "D22"]
[EventDate "1958.03.11"]
[PlyCount "64"]

1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Bg4 5. Bxc4 e6 6. Qb3 Bxf3 7. gxf3 b5 8. Be2 Nf6 9. Bd2 Nbd7 10. Ba5 Qb8 11. Nd2 c5 12. dxc5 Bxc5 13. O-O O-O 14. Rfd1 Rc8 15. Nf1 Bf8 16. Bb4 Bxb4 17. Qxb4 Nb6 18. Rac1 Nbd5 19. Qd4 Qb6 20. Qxb6 Nxb6 21. f4 Kf8 22. Bf3 Rxc1 23. Rxc1 Rc8 24. Rxc8+ Nxc8 25. Nd2 Nd6 26. Kf1 Ke7 27. Ke2 Nde8 28. Kd3 Kd6 29. Kd4 Kc7 30. Ne4 Nxe4 31. Bxe4 Nf6 32. Bf3 Nd7 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.04.01"]
[Round "15"]
[White "Panno, Oscar"]
[Black "Pelikan, Jorge"]
[Result "1/2-1/2"]
[ECO "A81"]
[EventDate "1958.03.11"]
[PlyCount "196"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 d6 4. d4 e6 5. O-O Be7 6. b3 O-O 7. e3 Qe8 8. Ba3 e5 9. c4 Nc6 10. Nc3 e4 11. Ne1 Qg6 12. f3 Bd7 13. Nd5 Bd8 14. Nf4 Qh6 15. Nc2 g5 16. Ne2 Be7 17. f4 Rae8 18. Bb2 Nh5 19. d5 Nd8 20. b4 b5 21. Rb1 bxc4 22. Qd4 a6 23. Nc3 gxf4 24. gxf4 Rf6 25. Qxc4 Rg6 26. Qxc7 Qg7 27. Ne1 Bf6 28. Rf2 Kh8 29. Re2 Rg8 30. a4 Bd4 31. Kh1 Rg4 32. Nd1 Bxb2 33. Rbxb2 Bxa4 34. Qxg7+ R4xg7 35. Nc3 Be8 36. Ra2 Rc7 37. Rec2 Nf6 38. h3 Rc4 39. Kh2 Rxb4 40. Rxa6 Nf7 41. Bf1 Bd7 42. Rca2 Rb3 43. R6a3 Rxa3 44. Rxa3 Rb8 45. Bc4 Rb2+ 46. Kg1 Kg7 47. Bb3 Rd2 48. Ra2 Rxa2 49. Bxa2 Nh8 50. Nc2 Ng6 51. Kf2 Ne7 52. Bc4 Be8 53. Nb4 Bf7 54. Nb5 Nfxd5 55. Bxd5 Bxd5 56. Nxd6 Kf6 57. Kg3 Bb3 58. Kh4 Bd1 59. Nb5 Ng6+ 60. Kg3 Ne7 61. Nc3 Bb3 62. Kh4 Bf7 63. Ne2 h5 64. Kg3 Ng6 65. h4 Ne7 66. Nd4 Be8 67. Kf2 Bd7 68. Na6 Ng6 69. Nc5 Bc8 70. Kg3 Ne7 71. Nb5 Be6 72. Nd6 Bc8 73. Ne8+ Kf7 74. Nd6+ Kf6 75. Kf2 Be6 76. Ne8+ Kf7 77. Nxe6 Kxe6 78. Ng7+ Kf7 79. Nxh5 Ng6 80. Kg3 Ne7 81. Kg2 Nd5 82. Kf2 Nf6 83. Ng3 Kg6 84. Ke1 Nh5 85. Ne2 Nf6 86. Nd4 Kh5 87. Nxf5 Kg4 88. Ne7 Kxh4 89. Kd2 Nh5 90. Nd5 Ng3 91. Ke1 Kg4 92. Kf2 Nh5 93. Kg2 Kh4 94. Nc3 Kg4 95. Ne2 Nf6 96. Nc3 Nh5 97. Nd5 Kh4 98. Kf2 Kg4 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.04.01"]
[Round "15"]
[White "Pilnik, Herman"]
[Black "Reinhardt, Enrique"]
[Result "1-0"]
[ECO "C63"]
[EventDate "1958.03.11"]
[PlyCount "35"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 Nf6 5. O-O fxe4 6. dxe4 Bc5 7. Bg5 d6 8. Nc3 a6 9. Bc4 h6 10. Bxf6 Qxf6 11. Nd5 Qd8 12. b4 Ba7 13. Ne1 O-O 14. Nxc7+ Kh8 15. Nxa8 Qh4 16. Nf3 Qh5 17. Nc7 Bh3 18. Ne6 1-0

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.04.01"]
[Round "15"]
[White "Rossetto, Hector Decio"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "B88"]
[EventDate "1958.03.11"]
[PlyCount "118"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. O-O Be7 8. Kh1 O-O 9. f4 Nxe4 10. Nxe4 d5 11. Nxc6 bxc6 12. Bd3 dxe4 13. Bxe4 Ba6 14. Re1 Qc7 15. Qf3 Rac8 16. f5 exf5 17. Bxf5 Rcd8 18. Bf4 Bd6 19. Bxd6 Rxd6 20. Qa3 c5 21. Be4 Bb7 22. Bxb7 Qxb7 23. Rad1 Rxd1 24. Rxd1 c4 25. Qc3 h6 26. h3 Rb8 27. b3 cxb3 28. axb3 Rc8 29. Qd3 Qc6 30. c4 a5 31. Ra1 Qb6 32. Qc3 Rc5 33. Re1 Qg6 34. Qd4 Rf5 35. Qe3 Rg5 36. Qd2 Rg3 37. Qxa5 Qc6 38. Qd8+ Kh7 39. Qd5 Qxd5 40. cxd5 Rxb3 41. Rd1 Kg6 42. Kh2 Rb7 43. h4 Kf5 44. Rd3 g6 45. Kh3 Ke4 46. Rf3 Ke5 47. Re3+ Kxd5 48. Re8 Rb3+ 49. g3 f5 50. Rg8 Rb6 51. Rh8 g5 52. hxg5 hxg5 53. Rd8+ Ke4 54. Rd2 Ke3 55. Ra2 Rd6 56. Ra3+ Rd3 57. Ra5 f4 58. gxf4 gxf4 59. Kg4 f3 1/2-1/2

[Event "16th Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1958.04.01"]
[Round "15"]
[White "Sumar, Julio"]
[Black "Olivera, Alfredo"]
[Result "1/2-1/2"]
[ECO "D69"]
[EventDate "1958.03.11"]
[PlyCount "42"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Rc1 c6 7. Nf3 O-O 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5 15. f4 Qf6 16. Qc2 Be6 17. Rd1 Bxc4 18. Rxc4 Rad8 19. Rcd4 Rxd4 20. Rxd4 Rd8 21. Rxd8+ Qxd8 1/2-1/2
