[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.12"]
[Round "1"]
[White "Bolbochan, Julio"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "A39"]
[EventDate "1966.03.12"]
[PlyCount "75"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 c5 6. O-O cxd4 7. Nxd4 Nc6 8. Nc3 Nxd4 9. Qxd4 d6 10. Qd3 Ng4 11. Bd2 Ne5 12. Qe4 Rb8 13. Rac1 a6 14. Rfd1 b5 15. cxb5 axb5 16. b3 Bd7 17. Qb4 Nc6 18. Qh4 Nd4 19. Bg5 Nf5 20. Qb4 h6 21. Bd2 Nd4 22. Be3 Nc6 23. Qe4 Qa5 24. Nd5 e6 25. Nf4 d5 26. Qb1 Rfc8 27. Nd3 Nd4 28. Bf1 Nf5 29. Rxc8+ Rxc8 30. Bc5 e5 31. e3 Be6 32. Bg2 h5 33. Bb4 Qa7 34. h4 d4 35. e4 Nh6 36. Rc1 Rxc1+ 37. Nxc1 Ng4 38. Qc2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.12"]
[Round "1"]
[White "Eliskases, Erich"]
[Black "Pilnik, Herman"]
[Result "1-0"]
[ECO "A21"]
[EventDate "1966.03.12"]
[PlyCount "92"]

1. c4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 Ne7 5. e4 O-O 6. Nge2 d6 7. O-O Be6 8. d3 Qd7 9. Be3 Bh3 10. Qd2 Bxg2 11. Kxg2 f5 12. f3 c5 13. Bh6 Nbc6 14. h4 Bxh6 15. Qxh6 Nd8 16. Qe3 Ne6 17. f4 fxe4 18. Qxe4 exf4 19. Nxf4 Nxf4+ 20. Rxf4 Rxf4 21. Qxf4 Rf8 22. Qe4 Qc6 23. Re1 Qxe4+ 24. Rxe4 Nc6 25. Re6 Rd8 26. Ne4 d5 27. Nxc5 dxc4 28. Nxb7 Rb8 29. dxc4 Rxb7 30. Rxc6 Rxb2+ 31. Kf3 Rxa2 32. Rc8+ Kf7 33. Rc7+ Kf6 34. Rxh7 a5 35. Rc7 a4 36. Rc6+ Kg7 37. Kg4 Re2 38. Ra6 Re4+ 39. Kg5 Rxc4 40. Rxg6+ Kh7 41. Ra6 Rc3 42. Ra7+ Kg8 43. g4 a3 44. h5 Kh8 45. h6 Rc5+ 46. Kg6 Rc6+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.12"]
[Round "1"]
[White "Garcia, Raimundo"]
[Black "Guimard, Carlos Enrique"]
[Result "0-1"]
[ECO "C75"]
[EventDate "1966.03.12"]
[PlyCount "72"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 7. O-O Ng6 8. d5 Nb8 9. c4 Be7 10. Nc3 O-O 11. Bxd7 Nxd7 12. Be3 f5 13. exf5 Rxf5 14. Ne4 Nf4 15. g3 Ng6 16. Nfd2 Ndf8 17. b4 Qd7 18. f3 h5 19. Nb3 Nh7 20. c5 Raf8 21. Na5 h4 22. Nxb7 hxg3 23. hxg3 Bg5 24. Qd2 Bxe3+ 25. Qxe3 Rh5 26. Qd2 Nf6 27. c6 Qh3 28. Nxf6+ Rxf6 29. Qg2 Qc8 30. Rae1 Nf4 31. gxf4 Qf5 32. fxe5 Rg6 33. Rf2 Qh3 34. Kf1 Rxg2 35. Rxg2 Rg5 36. Ree2 Qh1+ 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.12"]
[Round "1"]
[White "Portisch, Lajos"]
[Black "Emma, Jaime"]
[Result "1-0"]
[ECO "E51"]
[EventDate "1966.03.12"]
[PlyCount "68"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O a6 8. h3 h6 9. a3 dxc4 10. Bxc4 Bd6 11. e4 e5 12. Be3 exd4 13. Bxd4 Nxd4 14. Qxd4 Be7 15. Qe3 Be6 16. Bxe6 fxe6 17. Ne2 c5 18. Nf4 Qc8 19. Rac1 Re8 20. Ng6 Qc6 21. e5 Nd7 22. Rc4 b5 23. Rg4 Kh7 24. Qd3 Kg8 25. Nf4 Bf8 26. Qg6 Re7 27. Qxh6 Qe4 28. Re1 Qf5 29. Qh4 Nb6 30. Rg6 Kf7 31. Rg5 Qc2 32. Qh5+ Kg8 33. Rg6 Kf7 34. Rxe6+ Kg8 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.12"]
[Round "1"]
[White "Rossetto, Hector Decio"]
[Black "Pelikan, Jorge"]
[Result "1/2-1/2"]
[ECO "A87"]
[EventDate "1966.03.12"]
[PlyCount "108"]

1. d4 f5 2. Nf3 Nf6 3. g3 d6 4. Bg2 g6 5. O-O Bg7 6. c4 O-O 7. Nc3 a5 8. Bg5 Nc6 9. d5 Ne5 10. Nxe5 dxe5 11. Qd2 e4 12. Bh6 Bxh6 13. Qxh6 e6 14. Rfd1 Qe7 15. Qe3 Ng4 16. Qd4 Rd8 17. h3 e5 18. Qd2 Nf6 19. Qe3 Bd7 20. Rac1 Be8 21. f3 Nh5 22. fxe4 f4 23. gxf4 Nxf4 24. Kh2 Ra6 25. Rf1 g5 26. Qg3 Rh6 27. e3 Nxg2 28. Kxg2 Bd7 29. Rh1 Rf8 30. Rcf1 Rxf1 31. Kxf1 Rg6 32. Ke1 Qb4 33. Rh2 Qe7 34. a3 a4 35. Nd1 g4 36. hxg4 Rxg4 37. Qf3 Qg7 38. Nf2 Rg3 39. Qe2 Rg1+ 40. Kd2 Rg2 41. Qh5 Rg5 42. Qh4 b6 43. Kc3 Be8 44. Nd3 h5 45. Rf2 Kh7 46. c5 Kh6 47. c6 Bg6 48. Rf1 Rg4 49. Qd8 Bxe4 50. d6 Rg6 51. Qxc7 Qxc7 52. dxc7 Rxc6+ 53. Kb4 Rxc7 54. Nxe5 Rc2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.12"]
[Round "1"]
[White "Sanguineti, Raul"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "C84"]
[EventDate "1966.03.12"]
[PlyCount "81"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Nc3 b5 7. Bb3 d6 8. Nd5 O-O 9. Nxf6+ Bxf6 10. Bd5 Bb7 11. c3 Qc8 12. d4 Na5 13. Bxb7 Qxb7 14. Re1 Rfe8 15. dxe5 Bxe5 16. Nxe5 Rxe5 17. f3 Rae8 18. Bf4 R5e6 19. Bg3 Nc4 20. b3 Nb6 21. Qd2 f6 22. Bf2 d5 23. exd5 Qxd5 24. Qxd5 Nxd5 25. Rxe6 Rxe6 26. c4 bxc4 27. bxc4 Nb4 28. a3 Nd3 29. Rd1 Nxf2 30. Kxf2 Rc6 31. Rd4 Kf7 32. Ke3 Ke7 33. Rh4 h6 34. Kd4 Kd7 35. f4 Ke6 36. c5 f5 37. Rh3 Ke7 38. Rb3 Kd7 39. Rg3 g6 40. Rh3 h5 41. Rb3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.12"]
[Round "1"]
[White "Schweber, Samuel"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[ECO "E73"]
[EventDate "1966.03.12"]
[PlyCount "119"]

1. c4 g6 2. d4 Bg7 3. Nc3 d6 4. e4 Nf6 5. Be2 O-O 6. g4 c5 7. d5 e6 8. g5 Ne8 9. Be3 exd5 10. exd5 a6 11. a4 Nd7 12. h4 Qe7 13. Nf3 Ne5 14. Nxe5 Bxe5 15. Qd2 Bf5 16. Nd1 Nc7 17. a5 Rab8 18. Bf4 b5 19. axb6 Rxb6 20. Bxe5 Qxe5 21. Ra3 Qe4 22. f3 Qe5 23. f4 Qe4 24. O-O Rfb8 25. Bd3 Qd4+ 26. Qf2 Qxf2+ 27. Rxf2 Bxd3 28. Rxd3 Re8 29. Re3 Rbb8 30. Rfe2 f5 31. Re7 Kf8 32. Rxe8+ Rxe8 33. Kf2 Rb8 34. Re3 Rb4 35. b3 Rb8 36. Ke2 a5 37. Kd2 a4 38. bxa4 Rb4 39. Rc3 Rxa4 40. Ne3 Ra2+ 41. Rc2 Rxc2+ 42. Kxc2 Ne8 43. h5 Ng7 44. hxg6 hxg6 45. Kb3 Nh5 46. Ng2 Ng3 47. Ka4 Nf1 48. Kb5 Nd2 49. Ne3 Ke7 50. Kc6 Nb3 51. Ng2 Nd4+ 52. Kc7 Nf3 53. Kc6 Nd4+ 54. Kb6 Nf3 55. Kc7 Nd2 56. Ne3 Ne4 57. Nd1 Nd2 58. Nb2 Nf1 59. Nd3 Ne3 60. Ne5 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.12"]
[Round "1"]
[White "Smyslov, Vassily"]
[Black "Uhlmann, Wolfgang"]
[Result "1-0"]
[ECO "C19"]
[EventDate "1966.03.12"]
[PlyCount "119"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Nf3 Bd7 8. a4 Qa5 9. Qd2 Nbc6 10. Be2 Rc8 11. dxc5 Ng6 12. O-O O-O 13. Qe3 Qc7 14. Nd4 Qxe5 15. Nb5 Qxe3 16. Bxe3 a6 17. Nd6 Rc7 18. a5 e5 19. Rfb1 Nd8 20. Rd1 Bc6 21. Bg4 Ne6 22. Rab1 Ne7 23. g3 f5 24. Bh3 g6 25. f4 d4 26. cxd4 Nd5 27. Bf2 exd4 28. Bxd4 Nxd4 29. Rxd4 Re7 30. Kf2 Nc3 31. Re1 Rxe1 32. Kxe1 Ne4 33. Nxe4 Bxe4 34. c3 Rf6 35. Rd8+ Kg7 36. Rd7+ Rf7 37. Rxf7+ Kxf7 38. Kd2 Ke6 39. c4 Kd7 40. Ke3 Kc6 41. Kd4 Kd7 42. Ke5 Bf3 43. Kf6 Kc6 44. Kg7 Kxc5 45. Kxh7 Bh5 46. Bf1 Kb4 47. Bg2 Kxa5 48. Bxb7 Kb6 49. Bc8 a5 50. Bd7 Kc5 51. h3 Bf3 52. Kxg6 Bc6 53. Bxf5 a4 54. Bb1 a3 55. f5 Be4 56. Ba2 Bd3 57. h4 Kd4 58. h5 Ke4 59. g4 Kf4 60. Kg7 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.13"]
[Round "2"]
[White "Emma, Jaime"]
[Black "Rossetto, Hector Decio"]
[Result "1-0"]
[ECO "C66"]
[EventDate "1966.03.12"]
[PlyCount "59"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. O-O Be7 6. Nc3 Nxd4 7. Nxd4 exd4 8. Qxd4 Bxb5 9. Nxb5 a6 10. Nc3 Nf6 11. b3 Qd7 12. Bb2 O-O-O 13. Qa7 Qc6 14. Rad1 Qb6 15. Qxb6 cxb6 16. Nd5 Nxd5 17. Rxd5 f6 18. c4 g6 19. Rfd1 Rhf8 20. Ba3 Kc7 21. f4 Rfe8 22. e5 fxe5 23. fxe5 Bf8 24. Rf1 b5 25. exd6+ Kd7 26. Rf7+ Ke6 27. Rxb7 bxc4 28. bxc4 Rd7 29. Rb3 Bh6 30. Rd1 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.13"]
[Round "2"]
[White "Garcia, Raimundo"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "D94"]
[EventDate "1966.03.12"]
[PlyCount "58"]

1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 g6 5. Be2 dxc4 6. Bxc4 Bg7 7. d4 O-O 8. O-O Bg4 9. h3 Bxf3 10. Qxf3 Nbd7 11. Rd1 Ne8 12. Bb3 e6 13. e4 Qe7 14. Be3 Nd6 15. Rac1 h6 16. Qe2 Kh7 17. f4 f5 18. e5 Ne8 19. g4 Nc7 20. gxf5 gxf5 21. Kh2 Rg8 22. Rg1 Qf7 23. Bc2 Bf8 24. Rxg8 Kxg8 25. Rg1+ Kh8 26. Bf2 Be7 27. Qe1 Rg8 28. Rxg8+ Kxg8 29. Bb3 Nb6 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.13"]
[Round "2"]
[White "Guimard, Carlos Enrique"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[ECO "D03"]
[EventDate "1966.03.12"]
[PlyCount "132"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 c5 6. c3 Nbd7 7. Be2 O-O 8. O-O Re8 9. Qb3 b6 10. Rfd1 Bb7 11. Bh4 Qc8 12. a4 Ba6 13. Bb5 Qb7 14. Bxf6 c4 15. Bxa6 Qxa6 16. Qb5 Qxb5 17. axb5 Bxf6 18. Ra2 Rec8 19. Rda1 Rc7 20. Ne1 e6 21. Nc2 Be7 22. e4 Nb8 23. Ne3 Rd7 24. g3 Bf6 25. exd5 exd5 26. Nf3 a5 27. Ne5 Rd8 28. f4 Bg7 29. Re1 Ra7 30. Nf3 Re7 31. Raa1 Kf8 32. Kf2 Rd6 33. Ne5 f6 34. Nf3 Nd7 35. f5 Kf7 36. Ng2 Rxe1 37. Rxe1 Bh6 38. g4 Nf8 39. Ng1 Rd8 40. Ne2 Bd2 41. Rd1 Bh6 42. Nef4 Bxf4 43. Nxf4 g5 44. Ng2 Ke7 45. h4 h6 46. hxg5 hxg5 47. Ne3 Kd6 48. Rh1 Rd7 49. Rh8 Ke7 50. Ke2 Rd8 51. Kd2 Rd6 52. Kc2 Rd7 53. b3 cxb3+ 54. Kxb3 Rd8 55. c4 dxc4+ 56. Kc3 Kd6 57. Nxc4+ Kc7 58. Ne3 Kd6 59. Kd3 Kc7 60. Rh6 Nd7 61. Nd5+ Kc8 62. Nxf6 Ne5+ 63. Ke4 Nf7 64. Rh7 Nd6+ 65. Ke5 Nc4+ 66. Ke4 Nd6+ 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.13"]
[Round "2"]
[White "Pelikan, Jorge"]
[Black "Eliskases, Erich"]
[Result "1-0"]
[ECO "A02"]
[EventDate "1966.03.12"]
[PlyCount "75"]

1. f4 Nf6 2. Nf3 g6 3. g3 b6 4. d3 d5 5. Bg2 Bb7 6. O-O Bg7 7. a4 a5 8. e4 dxe4 9. Nfd2 e5 10. fxe5 Qd4+ 11. Kh1 Qxe5 12. Nc3 O-O 13. Ndxe4 Nxe4 14. Nxe4 Nd7 15. c3 f5 16. Bf4 Qe6 17. Ng5 Bxg2+ 18. Kxg2 Qc6+ 19. Qf3 Qxf3+ 20. Rxf3 Rfe8 21. Bxc7 Rac8 22. Bd6 Rc6 23. Ba3 Nf6 24. d4 Nd5 25. Rf2 h6 26. Nh3 g5 27. Kh1 f4 28. gxf4 Re3 29. Kg2 g4 30. Ng1 h5 31. f5 Bh6 32. Raf1 Kf7 33. Kh1 Rd3 34. Ne2 Ne3 35. Nc1 Rd1 36. Rxd1 Nxd1 37. Rf1 Ne3 38. Nd3 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.13"]
[Round "2"]
[White "Pilnik, Herman"]
[Black "Schweber, Samuel"]
[Result "0-1"]
[ECO "B59"]
[EventDate "1966.03.12"]
[PlyCount "112"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. Be3 a5 10. Nd2 d5 11. Nxd5 Nxd5 12. exd5 Qxd5 13. Nc4 Qxd1 14. Rfxd1 Bf5 15. c3 Rfd8 16. Rxd8+ Rxd8 17. Bb6 Rd7 18. Rd1 Rxd1+ 19. Bxd1 Be6 20. Nxa5 Nxa5 21. Bxa5 Bxa2 22. Bf3 b5 23. Bc6 Bc4 24. b3 Bxb3 25. Bxb5 Bc5 26. Bb4 Bxb4 27. cxb4 Kf8 28. f3 Ke7 29. Kf2 f5 30. Ke3 Bd5 31. Bd3 f4+ 32. Kd2 h6 33. Kc3 Kd6 34. Bg6 Kc6 35. Kd3 Kb5 36. Be4 Be6 37. Kc3 g5 38. h3 h5 39. Bg6 h4 40. Be4 Bf7 41. Bf5 Bd5 42. Bd7+ Kb6 43. Kd3 Kc7 44. Bf5 Kb6 45. Be4 Be6 46. Bg6 Bd5 47. Be8 g4 48. hxg4 Bxf3 49. g5 Bxg2 50. g6 h3 51. Bf7 h2 52. g7 h1=Q 53. g8=Q Be4+ 54. Kc4 Qc1+ 55. Kb3 Bc2+ 56. Ka2 Qb1+ 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.13"]
[Round "2"]
[White "Reshevsky, Samuel Herman"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[ECO "D28"]
[EventDate "1966.03.12"]
[PlyCount "65"]

1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. Qe2 c5 7. dxc5 Bxc5 8. O-O Nc6 9. Nc3 O-O 10. Bd3 Bd7 11. Bd2 Bd6 12. Rfd1 Qe7 13. Rac1 Rfd8 14. Be1 Be8 15. Ng5 Ne5 16. Bb1 Rac8 17. f4 Ng6 18. Nge4 Nxe4 19. Bxe4 Bc6 20. a3 Bc5 21. g3 Nf8 22. Rxd8 Qxd8 23. Bxc6 Rxc6 24. Bf2 Qc7 25. Qd2 Be7 26. e4 Nd7 27. Kg2 h6 28. Ne2 Nf6 29. Be3 Rxc1 30. Qxc1 Qd7 31. Qc2 g6 32. g4 h5 33. h3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.13"]
[Round "2"]
[White "Rubinetti, Jorge Alberto"]
[Black "Bolbochan, Julio"]
[Result "1/2-1/2"]
[ECO "A04"]
[EventDate "1966.03.12"]
[PlyCount "47"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O Nge7 7. Re1 d6 8. c3 e5 9. Na3 O-O 10. Nc2 b6 11. b4 Qc7 12. b5 Na5 13. Ne3 a6 14. a4 axb5 15. axb5 Bd7 16. c4 Nb7 17. Bd2 Rfb8 18. Qc2 Nd8 19. Ra4 Rxa4 20. Qxa4 Qc8 21. Ra1 Ne6 22. Bc3 Nc7 23. Qd1 Ra8 24. Nd2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.13"]
[Round "2"]
[White "Stein, Leonid"]
[Black "Smyslov, Vassily"]
[Result "1/2-1/2"]
[ECO "C98"]
[EventDate "1966.03.12"]
[PlyCount "51"]

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 Nc6 13. dxc5 dxc5 14. Nf1 Be6 15. Ne3 Rad8 16. Qe2 c4 17. Nf5 Bxf5 18. exf5 Rfe8 19. Ng5 Nb8 20. Ne4 Nbd7 21. Be3 Nxe4 22. Bxe4 Nc5 23. Qf3 Nxe4 24. Qxe4 Bc5 25. Bxc5 Qxc5 26. Rad1 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.14"]
[Round "3"]
[White "Bolbochan, Julio"]
[Black "Pilnik, Herman"]
[Result "1-0"]
[ECO "D46"]
[EventDate "1966.03.12"]
[PlyCount "137"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Bb4 7. O-O O-O 8. a3 Bxc3 9. bxc3 b6 10. cxd5 exd5 11. c4 Ba6 12. cxd5 Bxd3 13. Qxd3 cxd5 14. Bb2 Ne4 15. Rac1 Nd6 16. Ne5 b5 17. Qb3 Nb6 18. Bc3 Nbc4 19. Bb4 a6 20. a4 Re8 21. axb5 axb5 22. Bxd6 Qxd6 23. Qxb5 Nxe5 24. dxe5 Rxe5 25. Rfd1 h6 26. h3 Qe6 27. Qb7 Rd8 28. Rc6 Qf5 29. Qc7 Ra8 30. Rc2 Kh7 31. Rcd2 Rc8 32. Qd6 Qe6 33. Rxd5 Rxd5 34. Qxd5 Qxd5 35. Rxd5 g6 36. g4 Rc2 37. Kg2 Kg7 38. h4 Ra2 39. Kg3 Rb2 40. f4 Re2 41. Kf3 Rh2 42. h5 Rh3+ 43. Kf2 Rh2+ 44. Kg3 Re2 45. Kf3 Ra2 46. hxg6 Kxg6 47. Rd6+ Kg7 48. Rd3 Ra1 49. Rd2 Ra3 50. Rd6 Rb3 51. Ra6 Rc3 52. f5 Rb3 53. Kf4 Rb2 54. e4 Rb4 55. Ke5 Rb1 56. Ra8 Rb5+ 57. Kd6 Kf6 58. Re8 Kg5 59. e5 Kxg4 60. e6 fxe6 61. fxe6 Rb6+ 62. Kc5 Rb7 63. e7 Kh3 64. Kd6 h5 65. Rg8 Rb6+ 66. Ke5 Rb5+ 67. Kf6 Rb6+ 68. Kg5 Rb5+ 69. Kg6 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.14"]
[Round "3"]
[White "Eliskases, Erich"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "A55"]
[EventDate "1966.03.12"]
[PlyCount "32"]

1. c4 e5 2. Nf3 d6 3. d4 Nd7 4. e4 Ngf6 5. Nc3 c6 6. Be2 Be7 7. O-O O-O 8. Re1 Re8 9. Bf1 Bf8 10. g3 a6 11. d5 a5 12. Bh3 Nc5 13. Bxc8 Rxc8 14. Re2 g6 15. Ne1 cxd5 16. cxd5 b5 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.14"]
[Round "3"]
[White "Portisch, Lajos"]
[Black "Garcia, Raimundo"]
[Result "1-0"]
[ECO "D23"]
[EventDate "1966.03.12"]
[PlyCount "55"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ c6 5. Qxc4 Bf5 6. g3 Nbd7 7. Nc3 Ne4 8. Bg2 Nb6 9. Qd3 Nxc3 10. Qxf5 e6 11. Qd3 Ncd5 12. O-O Be7 13. e4 Nf6 14. Be3 O-O 15. Rfd1 Nbd7 16. h3 Qa5 17. a3 Rfc8 18. Rac1 Qd8 19. g4 Nf8 20. g5 Ne8 21. h4 Bd6 22. Bh3 Qe7 23. e5 Bc7 24. d5 cxd5 25. Bc5 Qd7 26. Bxf8 Kxf8 27. Qxh7 Bb6 28. g6 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.14"]
[Round "3"]
[White "Rossetto, Hector Decio"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "D01"]
[EventDate "1966.03.12"]
[PlyCount "83"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. f3 c5 5. dxc5 Qa5 6. Bxf6 exf6 7. a3 Qxc5 8. Qxd5 Qb6 9. O-O-O Bc5 10. Qe4+ Kf8 11. Na4 Qc7 12. e3 Be7 13. Ne2 Nc5 14. Nxc5 Bxc5 15. Qd3 Be6 16. Nd4 Re8 17. Nxe6+ Rxe6 18. Qd8+ Qxd8 19. Rxd8+ Re8 20. Rxe8+ Kxe8 21. Kd2 Ke7 22. Bd3 g6 23. b4 Bd6 24. c4 b6 25. Be4 Rd8 26. Kc2 Bc7 27. h3 f5 28. Bd3 h5 29. Rb1 h4 30. Re1 Kf6 31. e4 f4 32. Rb1 Be5 33. a4 Rb8 34. Rb3 Ke7 35. Be2 Bd6 36. Rb1 Rd8 37. a5 Be5 38. a6 Bd6 39. Bd3 Kd7 40. Kb3 Be5 41. Rd1 Kc6 42. Kc2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.14"]
[Round "3"]
[White "Sanguineti, Raul"]
[Black "Guimard, Carlos Enrique"]
[Result "1-0"]
[ECO "C41"]
[EventDate "1966.03.12"]
[PlyCount "131"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. dxe5 dxe5 7. Bxf7+ Kxf7 8. Ng5+ Kg8 9. Ne6 Qe8 10. Nxc7 Qg6 11. Nxa8 Qxg2 12. Rf1 Nc5 13. Qe2 Bh3 14. Be3 Qxf1+ 15. Qxf1 Bxf1 16. Kxf1 Kf7 17. Nc7 Rc8 18. N7d5 Ncxe4 19. Nxe7 Kxe7 20. Nxe4 Nxe4 21. Bxa7 Rxc2 22. Re1 Nd2+ 23. Kg2 Rxb2 24. Rxe5+ Kf7 25. Bd4 Rb1 26. Bc3 Nc4 27. Rc5 Nd6 28. Rc7+ Ke6 29. Rxg7 Ne4 30. Bd4 h5 31. Rh7 Rb4 32. Be3 Nf6 33. Re7+ Kf5 34. a3 Rb3 35. Bd4 Rxa3 36. Rxb7 Nd5 37. Rf7+ Ke4 38. Bb2 Ra2 39. Bc1 Rc2 40. Bg5 Rc7 41. Rf8 Rg7 42. h4 Rb7 43. f3+ Kd3 44. Rf5 Nc3 45. Bh6 Rb2+ 46. Kh3 Rb5 47. Rg5 Kc4 48. Bg7 Ne2 49. Be5 Kd3 50. Rxh5 Ke3 51. Rf5 Rb1 52. Kg4 Rg1+ 53. Kh5 Rf1 54. Kg6 Ng1 55. Bf4+ Ke2 56. h5 Nxf3 57. Bg5 Rg1 58. Ra5 Nxg5 59. Rxg5 Ra1 60. h6 Ra6+ 61. Kg7 Ra7+ 62. Kh8 Kf3 63. Rg7 Ra1 64. h7 Ke4 65. Re7+ Kf5 66. Kg8 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.14"]
[Round "3"]
[White "Schweber, Samuel"]
[Black "Pelikan, Jorge"]
[Result "1/2-1/2"]
[ECO "B27"]
[EventDate "1966.03.12"]
[PlyCount "40"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. Bc4 Nc6 6. Qd3 Bg7 7. Nc3 d6 8. O-O O-O 9. h3 Nd7 10. Qe2 Nc5 11. Nd5 e6 12. Nf4 b6 13. Rd1 Bb7 14. Nd3 Nxe4 15. Qxe4 Na5 16. Qf4 e5 17. Ndxe5 dxe5 18. Rxd8 exf4 19. Rxf8+ Rxf8 20. Bd3 Bd5 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.14"]
[Round "3"]
[White "Smyslov, Vassily"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[ECO "A24"]
[EventDate "1966.03.12"]
[PlyCount "90"]

1. c4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 d6 5. e3 Nf6 6. Nge2 O-O 7. O-O Re8 8. b4 e4 9. Rb1 Nbd7 10. Qc2 Qe7 11. Nf4 c6 12. b5 Nc5 13. bxc6 bxc6 14. Ba3 Bf5 15. Na4 Nfd7 16. Nxc5 Nxc5 17. Bb2 Be5 18. Bxe5 dxe5 19. Ne2 Be6 20. Nc1 Rad8 21. Nb3 f5 22. Nxc5 Qxc5 23. Rfc1 Re7 24. Bf1 Red7 25. Rd1 h5 26. d3 exd3 27. Rxd3 Rxd3 28. Bxd3 Kg7 29. Bf1 Rd7 30. Qc3 Bf7 31. Be2 Kh7 32. h4 Re7 33. Rb8 Qd6 34. Qb2 Re8 35. Rxe8 Bxe8 36. Qb7+ Qd7 37. Qb8 Qe7 38. a4 c5 39. a5 Bc6 40. f3 Kg7 41. Kf2 Be8 42. a6 Bc6 43. Ke1 e4 44. f4 Kh7 45. Qc8 Qd6 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.14"]
[Round "3"]
[White "Uhlmann, Wolfgang"]
[Black "Stein, Leonid"]
[Result "0-1"]
[ECO "E91"]
[EventDate "1966.03.12"]
[PlyCount "60"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Bg5 Bg4 7. Be2 Nfd7 8. d5 Nb6 9. Nd2 Bxe2 10. Qxe2 N8d7 11. O-O c6 12. f4 Rc8 13. Rf3 Qe8 14. Re1 e6 15. Qf1 f6 16. dxe6 fxg5 17. exd7 Nxd7 18. fxg5 Qe5 19. Rd1 Qxg5 20. Rxf8+ Rxf8 21. Nf3 Qf4 22. Qe2 Nc5 23. Nd4 a5 24. Nb3 b6 25. Nd4 Rc8 26. Qd2 Qxd2 27. Rxd2 Kf7 28. Kf2 Ke7 29. Ke2 Kd7 30. Nb3 Ne6 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.15"]
[Round "4"]
[White "Emma, Jaime"]
[Black "Schweber, Samuel"]
[Result "1/2-1/2"]
[ECO "A48"]
[EventDate "1966.03.12"]
[PlyCount "83"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. Bf4 d6 6. h3 Nfd7 7. e3 e5 8. Bh2 Nc6 9. Be2 f5 10. O-O Kh8 11. Rb1 g5 12. d5 Ncb8 13. e4 f4 14. Ne1 Nf6 15. Nd3 c5 16. a3 b6 17. b4 Rg8 18. Rb2 Bf8 19. g4 fxg3 20. fxg3 Bxh3 21. Rxf6 Qxf6 22. g4 cxb4 23. axb4 a5 24. bxa5 Rxa5 25. Nf2 Ra3 26. Rb3 Rxb3 27. Qxb3 Bxg4 28. Bxg4 h5 29. Bxh5 g4 30. Ne2 Qh4 31. Bf7 Rg7 32. Bg3 Qg5 33. Be6 Nd7 34. Bxd7 Rxd7 35. Qxb6 Rf7 36. c5 Qe3 37. Qb2 Qxc5 38. Qc3 Qb5 39. Qd2 Kh7 40. Nxg4 Qb1+ 41. Kh2 Qxe4 42. Nf2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.15"]
[Round "4"]
[White "Garcia, Raimundo"]
[Black "Rossetto, Hector Decio"]
[Result "1-0"]
[ECO "E59"]
[EventDate "1966.03.12"]
[PlyCount "83"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 dxc4 7. Bxc4 c5 8. O-O Nc6 9. a3 Bxc3 10. bxc3 Qc7 11. Bb5 Na5 12. Bd3 c4 13. Bc2 b6 14. e4 Nb3 15. Rb1 Nxc1 16. Qxc1 Bb7 17. Re1 h6 18. Ne5 Nd7 19. Ng4 e5 20. Ne3 Rfe8 21. Nf5 Nf6 22. d5 Bc8 23. Ne3 Bd7 24. a4 Qc5 25. Rb4 b5 26. axb5 Bxb5 27. Ba4 a6 28. Qc2 Rab8 29. Reb1 Rec8 30. Bxb5 axb5 31. Nxc4 Nd7 32. Ne3 Qxc3 33. Qxc3 Rxc3 34. Rxb5 Rxb5 35. Rxb5 Rc1+ 36. Nf1 f5 37. exf5 Nf6 38. d6 e4 39. Rd5 Rc8 40. Rd4 Kf7 41. h3 g6 42. fxg6+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.15"]
[Round "4"]
[White "Guimard, Carlos Enrique"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "E62"]
[EventDate "1966.03.12"]
[PlyCount "87"]

1. d4 Nf6 2. Nf3 d6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 Nc6 7. Nc3 e5 8. dxe5 dxe5 9. Bg5 Be6 10. Qa4 h6 11. Rad1 Qb8 12. Bxf6 Bxf6 13. Rd2 Qe8 14. Rfd1 Bg7 15. Qb5 a6 16. Qxb7 Ra7 17. Qb3 Na5 18. Qb4 Nxc4 19. Rd8 Qxd8 20. Rxd8 Rxd8 21. Qe7 Raa8 22. h4 Bf8 23. Qxc7 Rdc8 24. Qb7 Rab8 25. Qxa6 Rb6 26. Qa7 Rxb2 27. h5 Nd6 28. Qe3 Rc2 29. hxg6 R2xc3 30. Qxe5 Rc1+ 31. Kh2 R8c5 32. gxf7+ Bxf7 33. Qf4 R1c4 34. Nd4 Rh5+ 35. Bh3 Nf5 36. e3 Nxd4 37. exd4 Be6 38. Qe4 Rxh3+ 39. Kg2 Kf7 40. Qf3+ Ke7 41. d5 Bg4 42. d6+ Kxd6 43. Qxf8+ Kd5 44. Qd8+ 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.15"]
[Round "4"]
[White "Pelikan, Jorge"]
[Black "Bolbochan, Julio"]
[Result "1/2-1/2"]
[ECO "B52"]
[EventDate "1966.03.12"]
[PlyCount "45"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. Nxd4 Nf6 7. Nc3 e6 8. O-O Nc6 9. Re1 Be7 10. a4 O-O 11. Re3 Rfd8 12. Rg3 d5 13. Bh6 g6 14. Nxc6 Qxc6 15. e5 Ne4 16. Nxe4 dxe4 17. Qe2 Rd5 18. Rc3 Qd7 19. h3 Rxe5 20. Bf4 Rc5 21. Rxc5 Bxc5 22. Qxe4 Rd8 23. Be3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.15"]
[Round "4"]
[White "Pilnik, Herman"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[ECO "C86"]
[EventDate "1966.03.12"]
[PlyCount "54"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 O-O 9. Qe2 Na5 10. Bc2 c5 11. Rd1 Qc7 12. Nbd2 Re8 13. Nf1 h6 14. Ne3 Bf8 15. Bd2 Be6 16. d4 exd4 17. cxd4 Nc4 18. dxc5 dxc5 19. Nxc4 Bxc4 20. Qe1 Bd5 21. Ba5 Qf4 22. Rxd5 Nxd5 23. e5 Nb4 24. Be4 Rac8 25. h3 f5 26. Bb1 Nc6 27. Bd2 Nxe5 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.15"]
[Round "4"]
[White "Reshevsky, Samuel Herman"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "C98"]
[EventDate "1966.03.12"]
[PlyCount "62"]

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 Nc6 13. dxc5 dxc5 14. Nf1 Be6 15. Ne3 Rad8 16. Qe2 c4 17. Nf5 Bxf5 18. exf5 Rfe8 19. Bg5 Nd7 20. b4 cxb3 21. axb3 Ncb8 22. c4 bxc4 23. bxc4 h6 24. Bd2 Rc8 25. Ba4 Bf6 26. Rac1 Red8 27. Nh2 Nc5 28. Bc2 Rxd2 29. Qxd2 Bg5 30. Qe2 Bxc1 31. Rxc1 Qe7 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.15"]
[Round "4"]
[White "Rubinetti, Jorge Alberto"]
[Black "Uhlmann, Wolfgang"]
[Result "0-1"]
[ECO "C00"]
[EventDate "1966.03.12"]
[PlyCount "56"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 Be7 5. g3 c5 6. Bg2 Nc6 7. O-O O-O 8. Re1 b5 9. e5 Nd7 10. Nf1 a5 11. h4 b4 12. h5 Ba6 13. h6 g6 14. N1h2 a4 15. Bf4 Bb5 16. Ng4 Nd4 17. Ngh2 Rc8 18. Bf1 Rc6 19. c4 bxc3 20. bxc3 Nxf3+ 21. Nxf3 Rb6 22. Qd2 Bc6 23. Bg2 d4 24. c4 Bxf3 25. Bxf3 g5 26. Kh2 Kh8 27. Rg1 Rg8 28. Bh5 Qf8 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.15"]
[Round "4"]
[White "Sanguineti, Raul"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[ECO "C50"]
[EventDate "1966.03.12"]
[PlyCount "84"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O d6 6. Be3 Bxe3 7. fxe3 Na5 8. Bb3 c6 9. Nc3 O-O 10. Qe1 Ng4 11. h3 Nxb3 12. axb3 Nh6 13. g4 f6 14. Qg3 b5 15. Nh4 Nf7 16. Nf5 b4 17. Nd1 d5 18. Nf2 g6 19. Nh4 Nd6 20. Nf3 Qb6 21. Nd2 Bb7 22. g5 f5 23. exd5 f4 24. exf4 Rxf4 25. Rae1 Nf5 26. Qh2 Ne3 27. Nc4 Nxc4 28. bxc4 cxd5 29. cxd5 Raf8 30. Rxe5 Bc8 31. Re7 Qc5 32. d6 Qxg5+ 33. Qg2 Qc5 34. Qg3 Qxd6 35. Re4 Bb7 36. Rxf4 Rxf4 37. Re1 Qf6 38. Re7 Bd5 39. Re3 Kg7 40. Ne4 Bxe4 41. dxe4 Rf1+ 42. Kg2 Rc1 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.17"]
[Round "5"]
[White "Bolbochan, Julio"]
[Black "Emma, Jaime"]
[Result "1-0"]
[ECO "D23"]
[EventDate "1966.03.12"]
[PlyCount "61"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ c6 5. Qxc4 Bf5 6. g3 Nbd7 7. Nc3 Ne4 8. Bg2 e6 9. O-O Nb6 10. Qb3 Be7 11. a4 O-O 12. a5 Nd5 13. Ne5 Nd6 14. Re1 Nxc3 15. bxc3 a6 16. e4 Bg6 17. c4 Rc8 18. Ba3 Rc7 19. Rad1 Qb8 20. Bc5 Nc8 21. Bb6 Nxb6 22. axb6 Rcc8 23. Nd7 Qd6 24. Nxf8 Bxf8 25. e5 Qe7 26. Rc1 h6 27. d5 cxd5 28. cxd5 Rc5 29. Rxc5 Qxc5 30. dxe6 fxe6 31. Bxb7 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.17"]
[Round "5"]
[White "Eliskases, Erich"]
[Black "Garcia, Raimundo"]
[Result "1/2-1/2"]
[ECO "D34"]
[EventDate "1966.03.12"]
[PlyCount "47"]

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. dxc5 Bxc5 10. Na4 Be7 11. Be3 Bg4 12. Nd4 Qd7 13. Nxc6 bxc6 14. Rc1 Rfe8 15. f3 Bf5 16. Bd4 Qe6 17. Qd2 Bf8 18. Rfe1 Nd7 19. Qc3 Rab8 20. a3 c5 21. Nxc5 Nxc5 22. Bxc5 Bxc5+ 23. Qxc5 Rxb2 24. Bf1 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.17"]
[Round "5"]
[White "Portisch, Lajos"]
[Black "Guimard, Carlos Enrique"]
[Result "1-0"]
[ECO "A84"]
[EventDate "1966.03.12"]
[PlyCount "79"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 f5 5. Bf4 c6 6. e3 Nf6 7. Be2 O-O 8. O-O Ne4 9. h3 Nd7 10. Nd2 Bd6 11. Bxd6 Nxd6 12. b4 dxc4 13. Nxc4 Nxc4 14. Bxc4 Nb6 15. Be2 Nd5 16. Qb3 f4 17. Nxd5 exd5 18. e4 Be6 19. Bf3 Kh8 20. e5 Qd7 21. b5 cxb5 22. Rfb1 Rac8 23. a4 bxa4 24. Qxa4 Qe7 25. Qxa7 Qg5 26. Kh2 Bxh3 27. Rxb7 Bxg2 28. Bxg2 f3 29. Bh3 Rc2 30. Rf1 Qf4+ 31. Kg1 Qg5+ 32. Kh2 Qf4+ 33. Kg1 Qh4 34. Rb8 Rcc8 35. Rxc8 Rxc8 36. Qd7 Rf8 37. Qg4 Qe7 38. Kh2 g5 39. Rc1 Rf4 40. Qc8+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.17"]
[Round "5"]
[White "Rossetto, Hector Decio"]
[Black "Sanguineti, Raul"]
[Result "1-0"]
[ECO "A80"]
[EventDate "1966.03.12"]
[PlyCount "115"]

1. d4 f5 2. Nc3 d5 3. Bg5 c6 4. e3 Nd7 5. Bd3 Ndf6 6. Nf3 h6 7. Bxf6 Nxf6 8. Ne5 e6 9. g4 Nxg4 10. Nxg4 fxg4 11. Bg6+ Kd7 12. Qxg4 Qg5 13. Rg1 Qxg4 14. Rxg4 Kc7 15. Rg2 Be7 16. f4 c5 17. O-O-O Bd7 18. Ne2 cxd4 19. Nxd4 Rhf8 20. c3 Bf6 21. Nf3 Be8 22. h4 Bxg6 23. Rxg6 Rae8 24. h5 Rf7 25. Kc2 Rd7 26. Nh2 Kc8 27. Ng4 Bd8 28. Ne5 Rc7 29. Rdg1 Bf6 30. Ng4 Bd8 31. Rg2 a6 32. Kd3 Bh4 33. Rh2 Bd8 34. Rc2 b5 35. Re2 Rf7 36. Ne5 Rc7 37. Reg2 Bf6 38. Ng4 Bd8 39. Rg1 Kb7 40. Ra1 a5 41. a4 b4 42. Rc1 bxc3 43. bxc3 Ree7 44. Ne5 Re8 45. Rb1+ Kc8 46. Rb5 Bf6 47. Rxa5 Kb7 48. Rg1 Bxe5 49. Rb1+ Kc6 50. fxe5 Rec8 51. Rab5 Kd7 52. Rb7 Ra8 53. Rxc7+ Kxc7 54. Rg1 Rxa4 55. Rxg7+ Kd8 56. Rg6 Kd7 57. Rxh6 Re4 58. Rh8 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.17"]
[Round "5"]
[White "Schweber, Samuel"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "C91"]
[EventDate "1966.03.12"]
[PlyCount "42"]

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 Na5 12. Bc2 c5 13. Nbd2 cxd4 14. Bxd4 Nc6 15. Be3 d5 16. h3 dxe4 17. hxg4 exf3 18. Qxf3 Ne5 19. Qh3 Ng6 20. Nf3 Rc8 21. Bf5 Rc6 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.17"]
[Round "5"]
[White "Smyslov, Vassily"]
[Black "Pelikan, Jorge"]
[Result "1-0"]
[ECO "A87"]
[EventDate "1966.03.12"]
[PlyCount "59"]

1. d4 f5 2. c4 Nf6 3. Nc3 d6 4. Nf3 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O a5 8. Bg5 Nc6 9. d5 Ne5 10. Nxe5 dxe5 11. Qd2 e4 12. Rad1 Ng4 13. f3 Ne5 14. b3 a4 15. fxe4 axb3 16. axb3 Ra3 17. Nb5 Rxb3 18. Nd4 Rb6 19. c5 Ra6 20. exf5 Ra4 21. Ne6 Bxe6 22. fxe6 Rxf1+ 23. Rxf1 b6 24. d6 cxd6 25. cxd6 Rd4 26. Bxe7 Qe8 27. Qxd4 Nf3+ 28. Rxf3 Bxd4+ 29. e3 Bg7 30. Rf7 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.17"]
[Round "5"]
[White "Stein, Leonid"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[ECO "E91"]
[EventDate "1966.03.12"]
[PlyCount "51"]

1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. e4 Nf6 5. Be2 O-O 6. Nf3 Bg4 7. Be3 Nfd7 8. Rc1 e5 9. d5 Bxf3 10. Bxf3 a5 11. h4 f5 12. h5 Na6 13. hxg6 hxg6 14. Ke2 f4 15. Bd2 Nf6 16. g3 g5 17. gxf4 g4 18. Bg2 exf4 19. Bxf4 Nxe4 20. Be3 Nxc3+ 21. bxc3 Nc5 22. Qc2 Qf6 23. Qh7+ Kf7 24. Rh6 Qe5 25. Rh5 Qe7 26. Rg5 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.17"]
[Round "5"]
[White "Uhlmann, Wolfgang"]
[Black "Pilnik, Herman"]
[Result "1/2-1/2"]
[ECO "D27"]
[EventDate "1966.03.12"]
[PlyCount "39"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. a4 Nc6 8. Qe2 cxd4 9. Rd1 Be7 10. exd4 O-O 11. Nc3 Nb4 12. Bf4 b6 13. Ne5 Bb7 14. Rac1 Nfd5 15. Bd2 Bg5 16. Nxd5 Nxd5 17. Bd3 Nf4 18. Bxf4 Bxf4 19. Rc4 g6 20. Be4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.18"]
[Round "6"]
[White "Emma, Jaime"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[ECO "A26"]
[EventDate "1966.03.12"]
[PlyCount "68"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 d6 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. Rb1 Nd4 9. Ne1 c6 10. b4 d5 11. b5 dxc4 12. bxc6 Nxc6 13. dxc4 Qxd1 14. Nxd1 Na5 15. Ne3 Be6 16. Nd3 Nxc4 17. Bxb7 Rab8 18. Nc5 Na5 19. Nxe6 fxe6 20. Ba3 Rxb7 21. Rxb7 Nxb7 22. Bxf8 Bxf8 23. Nc4 Nd7 24. Rb1 Nbc5 25. Kf1 e4 26. e3 Kf7 27. Na5 a6 28. Nc6 Bd6 29. Rb4 Bc7 30. Rc4 Kf6 31. Nd4 Ke5 32. Ne2 Kd5 33. Rd4+ Kc6 34. Nc3 Be5 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.18"]
[Round "6"]
[White "Garcia, Raimundo"]
[Black "Schweber, Samuel"]
[Result "1-0"]
[ECO "E94"]
[EventDate "1966.03.12"]
[PlyCount "99"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Rb1 exd4 9. Nxd4 Nc5 10. f3 a5 11. Be3 c6 12. Qd2 Re8 13. Rfd1 Nfd7 14. Bf1 Qe7 15. Re1 Qf8 16. Rbd1 a4 17. Nc2 Re6 18. Bd4 Bh6 19. Qf2 Re8 20. h3 Ne6 21. Be3 Bg7 22. Qd2 f5 23. exf5 gxf5 24. f4 Ndc5 25. Qxd6 Qxd6 26. Rxd6 Bxc3 27. bxc3 Ne4 28. Rd3 Kf7 29. Be2 Rd8 30. Rxd8 Nxd8 31. Bh5+ Kf8 32. g4 Nf6 33. Bc5+ Kg8 34. Nd4 b6 35. Bxb6 Nb7 36. Nxc6 Bd7 37. Ne7+ Kf8 38. Nd5 Nxh5 39. gxh5 Re8 40. Rxe8+ Bxe8 41. Nf6 Bf7 42. h6 Bg6 43. h4 Ke7 44. Bd4 Nd6 45. h5 Be8 46. Nxh7 Nf7 47. Bg7 a3 48. Nf6 Ba4 49. Nd5+ Ke6 50. Ne3 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.18"]
[Round "6"]
[White "Guimard, Carlos Enrique"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1/2-1/2"]
[ECO "A54"]
[EventDate "1966.03.12"]
[PlyCount "80"]

1. d4 Nf6 2. c4 d6 3. Nc3 c6 4. g3 Nbd7 5. Bg2 e5 6. Nf3 e4 7. Nd2 d5 8. cxd5 cxd5 9. Qb3 Nb6 10. a4 a5 11. f3 exf3 12. Nxf3 Bb4 13. Ne5 Be6 14. Nd3 Be7 15. Nf4 O-O 16. O-O Rc8 17. Nxe6 fxe6 18. Bh3 Rc6 19. Bf4 Kh8 20. Nb5 Nc4 21. Rad1 Ne4 22. Bg2 Ned6 23. Bc1 Bf6 24. Qd3 Nxb5 25. axb5 Rc8 26. e4 Qb6 27. Kh1 dxe4 28. Bxe4 h6 29. b3 Nd6 30. Ba3 Rfd8 31. Bc5 Qxb5 32. Qxb5 Nxb5 33. Bxb7 Rb8 34. Ba6 Bxd4 35. Bxb5 Bxc5 36. Rxd8+ Rxd8 37. Re1 Rd6 38. Bc4 Bb4 39. Re2 Rd1+ 40. Kg2 Rd2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.18"]
[Round "6"]
[White "Pelikan, Jorge"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[ECO "B23"]
[EventDate "1966.03.12"]
[PlyCount "107"]

1. e4 e6 2. Nc3 d5 3. g3 Nf6 4. Bg2 c5 5. d3 Be7 6. Nge2 b6 7. O-O Bb7 8. Nf4 d4 9. Nb1 O-O 10. e5 Nd5 11. Qg4 Kh8 12. c4 dxc3 13. Nxc3 Nc6 14. Ncxd5 exd5 15. e6 Nd4 16. exf7 Rxf7 17. Bd2 Bd6 18. Rae1 Qf6 19. Nxd5 Nf3+ 20. Bxf3 Qxf3 21. Qxf3 Rxf3 22. Nf4 Rd8 23. Ne6 Rd7 24. Bf4 h6 25. Re2 Rxd3 26. Bxd6 R3xd6 27. Nf4 Kh7 28. Rfe1 Rd2 29. Rxd2 Rxd2 30. h4 Rxb2 31. h5 Bf3 32. Kh2 c4 33. g4 Bxg4 34. Kg3 Bf5 35. Re5 c3 36. Rxf5 c2 37. Ne2 Rxa2 38. Rf7 b5 39. Rc7 b4 40. Nd4 b3 41. Nxb3 Ra3 42. Rxc2 Rxb3+ 43. Kg4 Rb8 44. Ra2 Rb7 45. f4 Kg8 46. Ra6 Kf8 47. Ra4 Rf7 48. f5 Ke8 49. f6 gxf6 50. Kf5 Rb7 51. Kg6 Kf8 52. Kxh6 Kf7 53. Rg4 Kf8 54. Ra4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.18"]
[Round "6"]
[White "Pilnik, Herman"]
[Black "Stein, Leonid"]
[Result "1-0"]
[ECO "C92"]
[EventDate "1966.03.12"]
[PlyCount "67"]

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 Nd7 10. d4 Bf6 11. a4 Na5 12. Bc2 Nb6 13. axb5 axb5 14. dxe5 dxe5 15. Be3 Be6 16. Bc5 Re8 17. Na3 Qxd1 18. Raxd1 Na4 19. Nxb5 Nxc5 20. b4 Na6 21. bxa5 Reb8 22. Rb1 Kf8 23. Red1 c6 24. Nd6 Nc5 25. Rb6 Rxb6 26. axb6 Rb8 27. Rb1 g6 28. Nd2 Bg5 29. N6c4 f6 30. Nb3 Na4 31. Nba5 Nxc3 32. Nxc6 Re8 33. Nd6 Nxb1 34. Nxe8 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.18"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "D07"]
[EventDate "1966.03.12"]
[PlyCount "57"]

1. d4 Nc6 2. Nf3 d5 3. c4 Bg4 4. cxd5 Bxf3 5. dxc6 Bxc6 6. Nc3 Nf6 7. f3 Nd5 8. e4 Nxc3 9. bxc3 e6 10. Be3 Qh4+ 11. g3 Qh5 12. Bg2 Qa5 13. Qb3 Ba4 14. Qb2 Qb6 15. Qe2 Qc6 16. c4 Bb4+ 17. Kf2 e5 18. a3 exd4 19. axb4 dxe3+ 20. Qxe3 O-O 21. Rhc1 a6 22. Qa3 b5 23. Bf1 Qh6 24. cxb5 Rad8 25. Ra2 Bxb5 26. Kg1 Rd7 27. Bxb5 axb5 28. f4 Rfd8 29. Qe3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.18"]
[Round "6"]
[White "Reshevsky, Samuel Herman"]
[Black "Bolbochan, Julio"]
[Result "1-0"]
[ECO "E92"]
[EventDate "1966.03.12"]
[PlyCount "73"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. Be3 exd4 8. Nxd4 Re8 9. f3 c6 10. Qd2 d5 11. exd5 cxd5 12. O-O dxc4 13. Rad1 a6 14. Bxc4 b5 15. Bb3 Bb7 16. a4 bxa4 17. Bxa4 Nbd7 18. Nb3 Qc8 19. Na5 Re5 20. b4 Bf8 21. Bf4 Bxb4 22. Bxe5 Nxe5 23. Nxb7 Bxc3 24. Qe3 Qc4 25. Kh1 Rb8 26. Nd6 Qb4 27. Bc2 a5 28. Qa7 Qb6 29. Qe7 Kg7 30. f4 Neg4 31. Qxf7+ Kh8 32. Qe7 Nf2+ 33. Rxf2 Qxf2 34. Nf7+ Kg7 35. Ne5+ Kh6 36. Qxf6 Bxe5 37. Qg5+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.18"]
[Round "6"]
[White "Sanguineti, Raul"]
[Black "Eliskases, Erich"]
[Result "1-0"]
[ECO "C90"]
[EventDate "1966.03.12"]
[PlyCount "91"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 Bb7 9. c3 d6 10. d4 exd4 11. cxd4 Na5 12. Bc2 d5 13. e5 Ne4 14. Nc3 Nxc3 15. bxc3 Nc4 16. Qd3 g6 17. Bh6 Re8 18. Qd1 Bc6 19. Qc1 bxa4 20. Qf4 f6 21. h4 Bf8 22. h5 f5 23. Bxf8 Rxf8 24. hxg6 hxg6 25. Qh6 Be8 26. Bxa4 c6 27. Bxc6 Ra7 28. Bxe8 Qxe8 29. Nh4 Rh7 30. Qxg6+ Qxg6 31. Nxg6 Ra8 32. Nf4 a5 33. Nxd5 Kf7 34. Reb1 Kg6 35. Ra4 Rah8 36. Nf4+ Kg5 37. Nh3+ Rxh3 38. gxh3 Nd2 39. Rd1 Nf3+ 40. Kg2 Nh4+ 41. Kf1 Rc8 42. d5 f4 43. d6 Kf5 44. d7 Rd8 45. Rxa5 Ng6 46. Rd6 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.19"]
[Round "7"]
[White "Bolbochan, Julio"]
[Black "Garcia, Raimundo"]
[Result "1-0"]
[ECO "A81"]
[EventDate "1966.03.12"]
[PlyCount "85"]

1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. b3 Bg7 5. Bb2 O-O 6. O-O a5 7. a3 d6 8. d4 c6 9. Nbd2 Na6 10. e3 Bd7 11. Qe2 Qc7 12. e4 fxe4 13. Nxe4 Rae8 14. Rae1 Nxe4 15. Qxe4 Bf5 16. Qe2 Qc8 17. Ng5 h6 18. Ne6 Bxe6 19. Qxe6+ Qxe6 20. Rxe6 Kf7 21. Re2 Nc7 22. c4 a4 23. bxa4 e6 24. Bc3 Na6 25. Rb1 Re7 26. Reb2 c5 27. Rxb7 Bxd4 28. Bxd4 cxd4 29. R7b6 Nc5 30. Rxd6 d3 31. Kf1 Ra7 32. Rb5 Ke7 33. Rd4 Rc8 34. a5 Rd7 35. Rxd7+ Nxd7 36. Be4 d2 37. Ke2 Rxc4 38. Bxg6 Rd4 39. Kd1 Kd6 40. Bc2 Kc6 41. Rb4 Rd6 42. a6 Kc7 43. a7 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.19"]
[Round "7"]
[White "Eliskases, Erich"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[ECO "A15"]
[EventDate "1966.03.12"]
[PlyCount "106"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. b3 Bg7 6. Bb2 O-O 7. O-O e6 8. Qc2 d5 9. Ne5 c5 10. f4 Nc6 11. Nxc6 Bxc6 12. Nc3 Rc8 13. Nd1 d4 14. Nf2 Bxg2 15. Kxg2 Qd7 16. Qd3 Rfe8 17. e4 dxe3 18. Qxd7 Nxd7 19. Bxg7 e2 20. Rfe1 Kxg7 21. Rxe2 Nb8 22. d3 Nc6 23. Rae1 Red8 24. Rb2 a5 25. Re3 Rc7 26. Kf1 Rcd7 27. a4 h6 28. h4 Nd4 29. Ke1 Re7 30. Kd2 Nf5 31. Rf3 e5 32. fxe5 Rxe5 33. Ng4 Re6 34. Ne3 Nxe3 35. Rxe3 Rxe3 36. Kxe3 f5 37. Rf2 Kf6 38. g4 Rd4 39. gxf5 gxf5 40. Rf4 Rxf4 41. Kxf4 Ke6 42. h5 Kf6 43. Ke3 Kg5 44. d4 f4+ 45. Kd3 cxd4 46. b4 axb4 47. c5 bxc5 48. a5 c4+ 49. Kxd4 c3 50. a6 c2 51. a7 c1=Q 52. a8=Q Qc3+ 53. Ke4 Qe3+ 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.19"]
[Round "7"]
[White "Rossetto, Hector Decio"]
[Black "Guimard, Carlos Enrique"]
[Result "1-0"]
[ECO "D35"]
[EventDate "1966.03.12"]
[PlyCount "95"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. cxd5 exd5 6. Bf4 c6 7. e3 Nh5 8. Be5 Nd7 9. Bd3 Nxe5 10. Nxe5 Nf6 11. h3 Bd6 12. Nf3 Qe7 13. Qc2 Be6 14. a3 Rc8 15. O-O h6 16. Rfe1 O-O 17. Rad1 c5 18. dxc5 Rxc5 19. Qa4 a6 20. e4 dxe4 21. Nxe4 Nxe4 22. Qxe4 g6 23. Qe3 Rd8 24. Qxh6 Rh5 25. Qe3 Bc5 26. Qe2 Qf6 27. Bxg6 Rxd1 28. Bxh5 Rxe1+ 29. Nxe1 Bd4 30. b4 b5 31. Nf3 Bb6 32. Bg4 Bxg4 33. hxg4 Qa1+ 34. Qe1 Qxa3 35. Qe8+ Kg7 36. Qe5+ f6 37. Qe7+ Kg6 38. Qe4+ Kh6 39. g5+ fxg5 40. Qe6+ Kg7 41. Qe7+ Kg8 42. Qxg5+ Kf7 43. Qd5+ Ke7 44. Qb7+ Ke8 45. Qxb6 Qxb4 46. Qxa6 Qb1+ 47. Kh2 b4 48. Qe6+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.19"]
[Round "7"]
[White "Rubinetti, Jorge Alberto"]
[Black "Pilnik, Herman"]
[Result "1/2-1/2"]
[ECO "C90"]
[EventDate "1966.03.12"]
[PlyCount "81"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5 11. Nbd2 Re8 12. Nf1 h6 13. Ng3 Bf8 14. h3 g6 15. d4 Bd7 16. b3 Nc6 17. d5 Ne7 18. Be3 Kh8 19. Qd2 Neg8 20. Nh2 Bc8 21. b4 Qc7 22. a4 cxb4 23. cxb4 Bd7 24. Rec1 Qb7 25. a5 Rac8 26. Bd3 Rxc1+ 27. Rxc1 Rc8 28. Be2 h5 29. Nf3 Kg7 30. Bd3 Be7 31. Rxc8 Qxc8 32. Qc1 Qxc1+ 33. Bxc1 Bd8 34. Bg5 Kf8 35. Nd2 Ke8 36. Be3 Bc7 37. Nb1 Ne7 38. Nc3 Kd8 39. Nge2 Ne8 40. Kf1 Kc8 41. Ng1 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.19"]
[Round "7"]
[White "Schweber, Samuel"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "E12"]
[EventDate "1966.03.12"]
[PlyCount "29"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 Be7 6. e3 Ne4 7. Bxe7 Qxe7 8. Nxe4 Bxe4 9. Nd2 Bb7 10. Be2 O-O 11. O-O d6 12. Bf3 c5 13. Bxb7 Qxb7 14. Qf3 Qxf3 15. Nxf3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.19"]
[Round "7"]
[White "Smyslov, Vassily"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "E18"]
[EventDate "1966.03.12"]
[PlyCount "39"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Nxe4 Bxe4 9. Ne1 Bxg2 10. Nxg2 d6 11. Qa4 Qd7 12. Qxd7 Nxd7 13. Rd1 Rfe8 14. b3 Bf6 15. Bb2 e5 16. dxe5 Bxe5 17. Bxe5 Rxe5 18. Nf4 Nf6 19. e3 Kf8 20. Rac1 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.19"]
[Round "7"]
[White "Stein, Leonid"]
[Black "Pelikan, Jorge"]
[Result "1-0"]
[ECO "B75"]
[EventDate "1966.03.12"]
[PlyCount "41"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 d6 8. f3 Qb6 9. Nf5 Qxb2 10. Nxg7+ Kf8 11. Nd5 Kxg7 12. Rb1 Qa3 13. Qd2 h5 14. O-O Rb8 15. Nxe7 Be6 16. Nd5 Na5 17. Bd4 Nxc4 18. Qg5 Ne5 19. Qxf6+ Kh6 20. f4 Rhe8 21. Qg5+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.19"]
[Round "7"]
[White "Uhlmann, Wolfgang"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "D22"]
[EventDate "1966.03.12"]
[PlyCount "54"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. Bxc4 e6 6. Nc3 a6 7. O-O Nc6 8. h3 Bh5 9. Be2 Bd6 10. a3 O-O 11. b4 Qe8 12. b5 axb5 13. Nxb5 Qb8 14. g4 Bg6 15. Nh4 Be7 16. Nxg6 hxg6 17. Bb2 Na5 18. Rc1 c6 19. Nc3 Rd8 20. Qc2 Nd5 21. Kg2 Bh4 22. Nxd5 cxd5 23. Bb5 Be7 24. Qd3 Rc8 25. Rxc8+ Qxc8 26. Rc1 Qd8 27. a4 Rc8 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.21"]
[Round "8"]
[White "Emma, Jaime"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "A05"]
[EventDate "1966.03.12"]
[PlyCount "95"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. d3 g6 5. g3 Bg7 6. Bg2 O-O 7. Nbd2 Nc6 8. O-O Rb8 9. a4 b6 10. Re1 Ba6 11. Nc4 Nd7 12. Nfd2 Nde5 13. Qe2 e6 14. f4 Nxc4 15. dxc4 Na5 16. Qd3 Qc7 17. Rb1 Rbd8 18. b3 d5 19. exd5 exd5 20. Bxd5 Rxd5 21. Qxd5 Bb7 22. Qd3 Rd8 23. Qe3 Qc6 24. Qe4 Qc8 25. Qe3 h6 26. Nf3 Qc6 27. Kf2 Kh7 28. Rb2 Rd6 29. Rd2 Re6 30. Qd3 Rxe1 31. Nxe1 Nxb3 32. Rd1 Qh1 33. Qe3 Qxh2+ 34. Kf1 Qc2 35. Rd7 Qh2 36. Rxf7 Qh1+ 37. Kf2 Be4 38. Nf3 Qxf3+ 39. Qxf3 Bxf3 40. Kxf3 Nxc1 41. Rxa7 Na2 42. a5 bxa5 43. Rxa5 Nxc3 44. Rxc5 Kg8 45. Rc8+ Kf7 46. c5 Nd5 47. Rd8 Ne7 48. g4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.21"]
[Round "8"]
[White "Garcia, Raimundo"]
[Black "Smyslov, Vassily"]
[Result "1/2-1/2"]
[ECO "A07"]
[EventDate "1966.03.12"]
[PlyCount "83"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. d3 Bg4 5. Nbd2 Nbd7 6. h3 Bh5 7. O-O e6 8. Qe1 Be7 9. e4 dxe4 10. dxe4 O-O 11. Nc4 Bxf3 12. Bxf3 b5 13. Nd2 Qb6 14. Bg2 Rfd8 15. Qe2 Nc5 16. Nb3 Na4 17. Be3 Qc7 18. c3 a6 19. Rad1 c5 20. e5 Nd5 21. Bxd5 exd5 22. f4 Rac8 23. Bf2 Bf8 24. f5 Re8 25. Rfe1 d4 26. cxd4 c4 27. Nc5 Nxc5 28. dxc5 Bxc5 29. Rd5 Bxf2+ 30. Qxf2 Rcd8 31. Rxd8 Qxd8 32. e6 fxe6 33. fxe6 Qf6 34. Qe2 Re7 35. a4 Qd4+ 36. Qf2 Qxf2+ 37. Kxf2 bxa4 38. Re4 Kf8 39. Rxc4 Rb7 40. Rxa4 Rxb2+ 41. Kf3 Rb3+ 42. Kf2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.21"]
[Round "8"]
[White "Guimard, Carlos Enrique"]
[Black "Pilnik, Herman"]
[Result "1/2-1/2"]
[ECO "A48"]
[EventDate "1966.03.12"]
[PlyCount "109"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 h6 5. Bxf6 Bxf6 6. e4 d6 7. e5 Bg7 8. Bb5+ c6 9. Bd3 Na6 10. Bxa6 bxa6 11. O-O O-O 12. c3 Rb8 13. Re1 Qc7 14. Qc1 Be6 15. Ne4 Bd5 16. c4 Bxe4 17. Rxe4 c5 18. exd6 exd6 19. b3 cxd4 20. Qf4 Qc5 21. Nxd4 Rbe8 22. Rd1 d5 23. Rxe8 Rxe8 24. Nc2 d4 25. Qd2 a5 26. Ne1 a4 27. Nd3 Qa3 28. Qc2 axb3 29. axb3 Rb8 30. Rb1 a5 31. h4 a4 32. bxa4 Rxb1+ 33. Qxb1 Qxa4 34. c5 Qc4 35. Qd1 Bf8 36. h5 g5 37. Qf3 Bxc5 38. Qf5 Bd6 39. g3 Qe6 40. Qxe6 fxe6 41. Kg2 g4 42. f3 e5 43. Nf2 gxf3+ 44. Kxf3 Bf8 45. Ke4 Bg7 46. g4 Kf7 47. Kf5 Bf6 48. Nd3 Bg7 49. Nf2 Bh8 50. Nd3 Bf6 51. Nf2 Bh4 52. Ne4 d3 53. Kxe5 Bg5 54. Nf2 d2 55. Nd1 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.21"]
[Round "8"]
[White "Pelikan, Jorge"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[ECO "A03"]
[EventDate "1966.03.12"]
[PlyCount "69"]

1. f4 c5 2. Nf3 Nf6 3. d3 d5 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. a4 Nc6 8. Nc3 d4 9. Ne4 Nxe4 10. dxe4 e5 11. f5 b6 12. g4 Ba6 13. h4 c4 14. Rf2 Rc8 15. Bh3 Rc7 16. g5 Re8 17. Rg2 Bb7 18. h5 Nb4 19. hxg6 fxg6 20. Rg4 Qa8 21. c3 dxc3 22. bxc3 Rd8 23. Qf1 Nc2 24. Ra2 Bxe4 25. f6 Rcd7 26. Rxe4 Rd1 27. Be6+ Kh8 28. fxg7+ Kxg7 29. Rxc4 Rxf1+ 30. Kxf1 e4 31. Rc7+ Kf8 32. Rxc2 exf3 33. Ba3+ Rd6 34. Bxd6+ Ke8 35. Rc8+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.21"]
[Round "8"]
[White "Portisch, Lajos"]
[Black "Schweber, Samuel"]
[Result "1/2-1/2"]
[ECO "D94"]
[EventDate "1966.03.12"]
[PlyCount "55"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. e3 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O e6 8. b4 Ne4 9. Bb2 Nxc3 10. Bxc3 Nd7 11. Qb3 a6 12. a4 Nf6 13. Rfd1 Ne4 14. Be1 Bd7 15. Ne5 Be8 16. f3 Nd6 17. c5 Nf5 18. Bf2 f6 19. Nd3 Bf7 20. g4 Ne7 21. Bg3 Qd7 22. Rab1 Bh6 23. Bf4 Bxf4 24. exf4 h6 25. h4 Qc7 26. b5 axb5 27. axb5 cxb5 28. Qxb5 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.21"]
[Round "8"]
[White "Reshevsky, Samuel Herman"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[ECO "D92"]
[EventDate "1966.03.12"]
[PlyCount "49"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. Rc1 dxc4 7. e4 c5 8. dxc5 Qxd1+ 9. Rxd1 Na6 10. Bxc4 Nxc5 11. e5 Nfd7 12. b4 Nb6 13. Bb5 Na6 14. a4 Nxb4 15. a5 a6 16. Be2 Nd7 17. O-O Nc6 18. Nd5 Ndxe5 19. Nxe5 Bxe5 20. Bxe5 Nxe5 21. Nxe7+ Kg7 22. Rb1 Be6 23. Rxb7 Bc4 24. Bxc4 Nxc4 25. Ra1 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.21"]
[Round "8"]
[White "Rossetto, Hector Decio"]
[Black "Eliskases, Erich"]
[Result "0-1"]
[ECO "D03"]
[EventDate "1966.03.12"]
[PlyCount "96"]

1. d4 d5 2. Nc3 e6 3. Nf3 Nf6 4. Bg5 h6 5. Bxf6 Qxf6 6. e4 Bb4 7. e5 Qe7 8. Qd2 b6 9. a3 Bxc3 10. Qxc3 c5 11. b4 c4 12. Be2 b5 13. O-O Bd7 14. Nd2 a5 15. Qg3 Qg5 16. Qxg5 hxg5 17. c3 Ke7 18. Bg4 Nc6 19. Rae1 axb4 20. axb4 Ra2 21. Nf3 f5 22. exf6+ gxf6 23. Re3 Kd6 24. Rfe1 Nd8 25. Bh3 Re8 26. g3 Nf7 27. Bg2 Nh6 28. h4 g4 29. Nh2 e5 30. dxe5+ Rxe5 31. Rxe5 fxe5 32. Rd1 Be6 33. Nf1 Ng8 34. h5 Nf6 35. h6 e4 36. Ne3 Ke5 37. Bf1 Ra3 38. Be2 Rxc3 39. Bxg4 Rxe3 40. Bxe6 Rd3 41. Bg4 Rxd1+ 42. Bxd1 Kf5 43. f3 Kg6 44. Kf2 d4 45. fxe4 Nxe4+ 46. Kf3 Nc3 47. Bc2+ d3 48. Bxd3+ cxd3 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.21"]
[Round "8"]
[White "Sanguineti, Raul"]
[Black "Bolbochan, Julio"]
[Result "1/2-1/2"]
[ECO "B83"]
[EventDate "1966.03.12"]
[PlyCount "42"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 d6 6. Be2 Nf6 7. O-O Be7 8. Be3 O-O 9. f4 Bd7 10. Bf3 Nxd4 11. Bxd4 Bc6 12. Kh1 Nd7 13. Bg1 a6 14. Qe1 b5 15. Rd1 Rc8 16. a3 Re8 17. Qg3 Qc7 18. Bd4 e5 19. fxe5 Nxe5 20. Nd5 Bxd5 21. exd5 Bf8 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.22"]
[Round "9"]
[White "Bolbochan, Julio"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[ECO "E53"]
[EventDate "1966.03.12"]
[PlyCount "98"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Re8 8. a3 Bxc3 9. bxc3 Nbd7 10. cxd5 exd5 11. Nd2 c4 12. Bc2 Qa5 13. Rb1 Nf8 14. Re1 Bg4 15. f3 Bh5 16. Rb4 b5 17. Nf1 Bg6 18. Ng3 Bxc2 19. Qxc2 Ng6 20. a4 bxa4 21. Rxa4 Qb6 22. Bd2 Re6 23. Rb1 Qc6 24. Ra5 Nf8 25. e4 N8d7 26. e5 Ne8 27. f4 Nc7 28. f5 Ree8 29. Qa4 Qxa4 30. Rxa4 Reb8 31. Rxb8+ Nxb8 32. Ra5 Nd7 33. Bf4 Nb6 34. e6 Ne8 35. Be5 g6 36. h4 gxf5 37. e7 f6 38. Bf4 Kf7 39. Nxf5 Ke6 40. Ne3 Kxe7 41. Nxd5+ Nxd5 42. Rxd5 a5 43. Bc1 Ke6 44. Rc5 Nd6 45. Ba3 Ne4 46. Rxc4 h5 47. d5+ Kxd5 48. Rd4+ Ke5 49. Ra4 Kf5 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.22"]
[Round "9"]
[White "Eliskases, Erich"]
[Black "Guimard, Carlos Enrique"]
[Result "0-1"]
[ECO "A84"]
[EventDate "1966.03.12"]
[PlyCount "88"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 f5 5. Bf4 c6 6. e3 Nf6 7. Bd3 O-O 8. O-O Kh8 9. Rb1 Ne4 10. Qc2 Nd7 11. Ne5 Nd6 12. c5 Nf7 13. Nxf7+ Rxf7 14. Bg3 Bf6 15. f4 Bh4 16. Bxh4 Qxh4 17. Rf3 Qd8 18. b4 Nf6 19. b5 Bd7 20. Rb3 Be8 21. bxc6 Bxc6 22. Bb5 Rc8 23. Qb2 b6 24. cxb6 axb6 25. Bd3 Be8 26. Ne2 Rb8 27. Ng3 Ra7 28. Ra3 Rxa3 29. Qxa3 Kg8 30. Be2 Ra8 31. Qb2 Qd6 32. Bd1 Ba4 33. Bxa4 Rxa4 34. h3 Rb4 35. Qe2 Qc6 36. Kh2 Rc4 37. Rf2 Rc3 38. Qd2 h5 39. Re2 h4 40. Nh1 Ne4 41. Qb2 Rc1 42. g3 Qc4 43. gxh4 Rxh1+ 44. Kxh1 Qxe2 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.22"]
[Round "9"]
[White "Pilnik, Herman"]
[Black "Pelikan, Jorge"]
[Result "0-1"]
[ECO "B43"]
[EventDate "1966.03.12"]
[PlyCount "114"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. a3 Bb7 7. Be2 Nc6 8. O-O Nge7 9. Nb3 Ng6 10. f4 Qb6+ 11. Kh1 Be7 12. Qd3 d6 13. Qh3 Na5 14. Be3 Qc7 15. Nxa5 Qxa5 16. f5 exf5 17. Qxf5 O-O 18. Nd5 Bxd5 19. Qxd5 Rac8 20. c3 Qa4 21. Rf2 Rce8 22. Bd4 Bh4 23. g3 Bf6 24. b3 Qa5 25. b4 Qc7 26. Re1 Bxd4 27. cxd4 Ne7 28. Qb3 Nc6 29. Qc3 Qb6 30. d5 Ne5 31. Qd2 Rc8 32. Kg2 Rc7 33. Rc1 Rxc1 34. Qxc1 Qd4 35. Qc2 Re8 36. Rf1 Nc4 37. Bxc4 bxc4 38. Rf4 c3 39. Rf3 Rc8 40. Rf2 Re8 41. Rf3 Rc8 42. Rf1 g6 43. Rf3 Kf8 44. Qa4 Rc7 45. Qxa6 Ke7 46. e5 Qxe5 47. Qb6 Qe2+ 48. Rf2 Qc4 49. Qe3+ Kf8 50. Rc2 Qxd5+ 51. Qf3 Qb3 52. Qd3 d5 53. b5 d4 54. Kf2 Re7 55. Rc1 Qxa3 56. Qxd4 Qb2+ 57. Kf3 Qe2+ 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.22"]
[Round "9"]
[White "Rubinetti, Jorge Alberto"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "D86"]
[EventDate "1966.03.12"]
[PlyCount "34"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Bc4 Bg7 8. Ne2 Nc6 9. Be3 cxd4 10. cxd4 b5 11. Bxb5 Qa5+ 12. Nc3 Qxc3+ 13. Bd2 Qxd4 14. Bxc6+ Bd7 15. Bxa8 Qxa1 16. Qxa1 Bxa1 17. O-O O-O 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.22"]
[Round "9"]
[White "Schweber, Samuel"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "D23"]
[EventDate "1966.03.12"]
[PlyCount "30"]

1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Qa4+ c6 5. Qxc4 Bf5 6. Nc3 e6 7. g3 Nbd7 8. Bg2 Ne4 9. O-O Nb6 10. Qb3 Nxc3 11. bxc3 Be4 12. Nd2 Bxg2 13. Kxg2 Qd5+ 14. e4 Qxb3 15. axb3 a6 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.22"]
[Round "9"]
[White "Smyslov, Vassily"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "B36"]
[EventDate "1966.03.12"]
[PlyCount "109"]

1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 8. Be2 Bg7 9. O-O O-O 10. Qe3 Be6 11. Bd2 Nd7 12. f4 Qb6 13. Qxb6 Nxb6 14. b3 Bd7 15. Rac1 Bc6 16. Nd5 Bd4+ 17. Kh1 e6 18. Ne7+ Kg7 19. Nxc6 bxc6 20. Bc3 Bxc3 21. Rxc3 Rfd8 22. Bf3 e5 23. fxe5 dxe5 24. c5 Nd7 25. Rd1 Nf6 26. Rd6 Rdc8 27. Kg1 Rab8 28. Kf2 Rc7 29. Ke3 h5 30. h3 Nd7 31. Be2 a5 32. g4 hxg4 33. Bxg4 Nf6 34. Rc4 Nxg4+ 35. hxg4 Kh6 36. Kd3 Rb5 37. Rd8 Kg5 38. Re8 Kxg4 39. Rxe5 Rb8 40. Ke3 Rh8 41. Rd4 Rh3+ 42. Kd2 Rh2+ 43. Kc3 Rxa2 44. Re8 Rb7 45. Rc8 Ra3 46. Rxc6 a4 47. Rxa4 Rbxb3+ 48. Kc4 Rxa4+ 49. Kxb3 Rxe4 50. Rf6 Re7 51. Kc4 Kg5 52. Rf1 f5 53. Rg1+ Kf6 54. c6 f4 55. Kd3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.22"]
[Round "9"]
[White "Stein, Leonid"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "C99"]
[EventDate "1966.03.12"]
[PlyCount "48"]

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. d5 Nb4 15. Bb1 a5 16. Nf1 Bd7 17. N3h2 Rfc8 18. Ne3 g6 19. Bd2 Na6 20. Qf3 Qd8 21. b3 Kg7 22. Nhf1 h5 23. a3 Nc5 24. Bc2 Nh7 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.22"]
[Round "9"]
[White "Uhlmann, Wolfgang"]
[Black "Garcia, Raimundo"]
[Result "1-0"]
[ECO "A61"]
[EventDate "1966.03.12"]
[PlyCount "101"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 g6 6. Bg5 Bg7 7. Nf3 d6 8. Nd2 h6 9. Bh4 g5 10. Bg3 Nh5 11. Qa4+ Kf8 12. e3 Nxg3 13. hxg3 Nd7 14. Qc2 Ne5 15. Be2 a6 16. a4 Bd7 17. a5 Rb8 18. e4 Bb5 19. Nd1 Bxe2 20. Kxe2 Qd7 21. Ne3 Qb5+ 22. Ndc4 Nxc4 23. Nxc4 Bd4 24. g4 Kg7 25. Kf3 Rbd8 26. g3 Qd7 27. Ra3 Rhe8 28. Rb3 Qe7 29. Rb6 Rd7 30. Re1 f6 31. Kg2 Red8 32. Qb3 Qf7 33. Qf3 Qe7 34. Qf5 Re8 35. Kf3 Qd8 36. Kg2 Ree7 37. Rd1 Rf7 38. Rd3 Rfe7 39. Qf3 Rf7 40. Qe2 Rfe7 41. Rf3 Re8 42. Rf5 Qe7 43. f3 Kh7 44. Kf1 Kg7 45. Qh2 Rb8 46. Ke2 Rh8 47. Kd3 Re8 48. Qh1 Rh8 49. f4 Qd8 50. Kc2 Qe7 51. e5 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.23"]
[Round "10"]
[White "Eliskases, Erich"]
[Black "Schweber, Samuel"]
[Result "1/2-1/2"]
[ECO "D25"]
[EventDate "1966.03.12"]
[PlyCount "62"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. Bxc4 e6 6. Qb3 Bxf3 7. gxf3 Nbd7 8. Qxb7 c5 9. dxc5 Bxc5 10. f4 Rb8 11. Qg2 Bb4+ 12. Ke2 O-O 13. b3 Nb6 14. Bd3 Nbd5 15. Bb2 Rc8 16. Bc4 Qa5 17. Rc1 Rfd8 18. Qf3 Nb6 19. Bxf6 gxf6 20. a3 Nxc4 21. bxc4 f5 22. Ra2 Qa6 23. Rac2 Bxa3 24. Qg3+ Kf8 25. Nxa3 Qxa3 26. Qg5 Qd3+ 27. Kf3 Qe4+ 28. Kg3 e5 29. c5 exf4+ 30. Qxf4 Rc6 31. Qxe4 fxe4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.23"]
[Round "10"]
[White "Emma, Jaime"]
[Black "Pilnik, Herman"]
[Result "1/2-1/2"]
[ECO "D23"]
[EventDate "1966.03.12"]
[PlyCount "69"]

1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Qa4+ Nbd7 5. Nc3 e6 6. e4 a6 7. Bxc4 Rb8 8. Qc2 b5 9. Bd3 Bb7 10. O-O c5 11. d5 c4 12. Be2 exd5 13. Nxd5 Nxd5 14. exd5 Bd6 15. Bg5 Nf6 16. Rad1 O-O 17. Nd4 Re8 18. Bf3 h6 19. Bh4 Be5 20. Nf5 Bc8 21. d6 Bxf5 22. Qxf5 g6 23. Qc2 g5 24. Bg3 Bxg3 25. hxg3 Rb6 26. a4 Rxd6 27. axb5 axb5 28. Qf5 Rxd1 29. Rxd1 Qb6 30. g4 Kg7 31. g3 b4 32. Rc1 Qd4 33. Kg2 Re5 34. Rxc4 Qxb2 35. Rxb4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.23"]
[Round "10"]
[White "Garcia, Raimundo"]
[Black "Stein, Leonid"]
[Result "0-1"]
[ECO "B07"]
[EventDate "1966.03.12"]
[PlyCount "130"]

1. Nf3 d6 2. d4 Bg4 3. e4 Nf6 4. h3 Bh5 5. Nc3 c6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Nh4 Bg6 10. Nxg6 hxg6 11. Bf3 Nc5 12. Qxd8+ Kxd8 13. Be3 Kc7 14. Kh2 Ne6 15. g3 Bc5 16. Bxc5 Nxc5 17. Kg2 b5 18. b4 Ne6 19. a4 a5 20. Rab1 bxa4 21. b5 Nc5 22. bxc6 Kxc6 23. Ra1 Rhd8 24. Nxa4 Rd2 25. Nxc5 Kxc5 26. Ra2 Rd7 27. Rfa1 Rda7 28. Rd1 a4 29. Rd3 Nd7 30. Rxa4 Rxa4 31. Rxd7 R8a7 32. Rd5+ Kb6 33. Rxe5 Rc7 34. Bd1 Rd4 35. Rd5 Rxe4 36. Rd6+ Kc5 37. Rd3 Rd4 38. Be2 Rxd3 39. Bxd3 g5 40. Kf3 Kd4 41. Kg4 Rc5 42. h4 gxh4 43. Kxh4 Rc6 44. g4 Ke5 45. Kg3 Rf6 46. Bc4 Rf4 47. Bd3 Rb4 48. Bf5 Rf4 49. Bd3 g5 50. Bh7 Kd4 51. Bd3 Kc3 52. f3 Kd4 53. Kf2 Rf6 54. Be4 Ra6 55. c3+ Kxc3 56. f4 f6 57. fxg5 fxg5 58. Kg3 Kd4 59. Bf5 Ke3 60. Bc8 Ra1 61. Kg2 Rd1 62. Be6 Kf4 63. Bc8 Rd2+ 64. Kh3 Rd8 65. Be6 Kf3 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.23"]
[Round "10"]
[White "Guimard, Carlos Enrique"]
[Black "Pelikan, Jorge"]
[Result "1-0"]
[ECO "A87"]
[EventDate "1966.03.12"]
[PlyCount "89"]

1. Nf3 f5 2. d4 Nf6 3. g3 d6 4. Bg2 g6 5. O-O Bg7 6. c4 O-O 7. Nc3 a5 8. Bg5 Nbd7 9. Qd2 c6 10. Rad1 Qc7 11. Bh6 Nb6 12. Bxg7 Kxg7 13. b3 a4 14. Rfe1 axb3 15. axb3 Ne4 16. Nxe4 fxe4 17. Ng5 Bf5 18. Bxe4 Bd7 19. Bg2 h6 20. Ne4 Bf5 21. Nc3 Rf7 22. Rf1 Raf8 23. c5 Nd7 24. b4 d5 25. e4 dxe4 26. Nxe4 Bxe4 27. Bxe4 Nf6 28. Bg2 Rd8 29. Qb2 Nd5 30. Rde1 Qd7 31. Re5 Kh7 32. Bxd5 cxd5 33. Rfe1 Kg7 34. Re6 Re8 35. Qe2 Kh7 36. b5 Rg7 37. c6 bxc6 38. bxc6 Qa7 39. Qd3 Qa5 40. h4 h5 41. R1e5 Rf8 42. Rxg6 Rxg6 43. Re6 Rfg8 44. Qf5 Kh6 45. Qg5+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.23"]
[Round "10"]
[White "Portisch, Lajos"]
[Black "Smyslov, Vassily"]
[Result "1/2-1/2"]
[ECO "E43"]
[EventDate "1966.03.12"]
[PlyCount "50"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 b6 7. O-O Bb7 8. Na4 cxd4 9. exd4 Qc7 10. a3 Be7 11. b4 a5 12. b5 d6 13. Re1 Re8 14. Bb2 Nbd7 15. Rc1 Bf8 16. Nc3 g6 17. Ne4 Nxe4 18. Bxe4 Bxe4 19. Rxe4 Bg7 20. Nd2 Rac8 21. Re2 Qb8 22. Nf1 d5 23. cxd5 Rxc1 24. Qxc1 exd5 25. Rc2 Nf8 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.23"]
[Round "10"]
[White "Reshevsky, Samuel Herman"]
[Black "Rubinetti, Jorge Alberto"]
[Result "0-1"]
[ECO "D25"]
[EventDate "1966.03.12"]
[PlyCount "84"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. Bxc4 e6 6. Nc3 Nbd7 7. h3 Bh5 8. Be2 a6 9. O-O Bd6 10. e4 Bxf3 11. gxf3 e5 12. f4 exd4 13. Qxd4 Bc5 14. Qc4 b5 15. Qb3 b4 16. Na4 O-O 17. e5 Ne4 18. Bf3 Nxf2 19. Rxf2 Bxf2+ 20. Kxf2 Qh4+ 21. Kg2 Rad8 22. Be3 Kh8 23. Qxb4 Nxe5 24. Bc5 Nd3 25. Qe4 Rfe8 26. Qf5 Nxc5 27. Rd1 Nxa4 28. Qxf7 Nxb2 29. Rd7 Qf6 30. Qxf6 gxf6 31. Rxc7 Nd3 32. Rc6 Nxf4+ 33. Kg3 Nd5 34. Rxa6 Kg7 35. a4 Re7 36. a5 Nc7 37. Rc6 Rd3 38. Kf4 Ra3 39. h4 Rxa5 40. h5 Ne6+ 41. Kg3 Nd4 42. h6+ Kg6 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.23"]
[Round "10"]
[White "Rossetto, Hector Decio"]
[Black "Bolbochan, Julio"]
[Result "1/2-1/2"]
[ECO "D01"]
[EventDate "1966.03.12"]
[PlyCount "45"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 h6 5. Bxf6 Nxf6 6. Qd3 c6 7. e4 dxe4 8. Nxe4 Qa5+ 9. c3 Bf5 10. Nxf6+ gxf6 11. Qe3 Rg8 12. g3 e6 13. Nh4 Bh7 14. Bd3 Bxd3 15. Qxd3 Qh5 16. Qe2 Qxe2+ 17. Kxe2 O-O-O 18. f4 c5 19. dxc5 Bxc5 20. Rad1 Kc7 21. Nf3 b5 22. Rd2 Rxd2+ 23. Nxd2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.23"]
[Round "10"]
[White "Sanguineti, Raul"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]
[ECO "C19"]
[EventDate "1966.03.12"]
[PlyCount "81"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Nf3 Bd7 8. a4 Qa5 9. Bd2 Nbc6 10. Be2 c4 11. Ng5 h6 12. Nh3 O-O-O 13. Nf4 Ng8 14. O-O f5 15. exf6 Nxf6 16. Ng6 Rhe8 17. Re1 e5 18. Nxe5 Nxe5 19. dxe5 Rxe5 20. Be3 Rde8 21. Bd4 R5e7 22. Kf1 Qc7 23. Kg1 Kb8 24. f3 Nh5 25. Bf2 Nf4 26. Bf1 Rxe1 27. Bxe1 Qe5 28. Bg3 g5 29. Bxc4 Bc6 30. Bf1 Qxc3 31. Bf2 Ne2+ 32. Kh1 Qe5 33. Ra3 d4 34. Bxe2 Qxe2 35. Qxd4 Kc8 36. Ra1 Qxc2 37. Qxa7 g4 38. Bg3 Re6 39. Qb6 Re7 40. Rf1 gxf3 41. gxf3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Bolbochan, Julio"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "E66"]
[EventDate "1966.03.12"]
[PlyCount "98"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 b5 12. Bb2 bxc4 13. bxc4 Bh6 14. f4 Ng4 15. Rf3 Bg7 16. Re1 e6 17. Ba1 exd5 18. Nxd5 Bxa1 19. Rxa1 Nc6 20. e3 Nb4 21. Qc3 f5 22. Rff1 Bb7 23. e4 fxe4 24. Bxe4 Nxd5 25. Bxd5+ Bxd5 26. cxd5 Qf6 27. Qxf6 Nxf6 28. Nc4 Rb4 29. Rac1 Nxd5 30. Nxd6 Rd8 31. Nc4 Nb6 32. Ne5 Rb2 33. Rxc5 Rxa2 34. Rf2 Rxf2 35. Kxf2 Rc8 36. Ra5 Ra8 37. Ke3 Ra7 38. Kd4 Nd7 39. Nc6 Ra8 40. Nb4 Nf6 41. Rxa6 Rxa6 42. Nxa6 Ng4 43. h4 Nh6 44. Ke4 Nf5 45. Kf3 h5 46. Nb4 Kf7 47. Nd5 Ke6 48. Ne3 Nd4+ 49. Ke4 Nf5 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Pelikan, Jorge"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "C86"]
[EventDate "1966.03.12"]
[PlyCount "80"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5 11. d3 Nd7 12. Nbd2 Nb6 13. Nf1 Bf6 14. Ng3 g6 15. Bh6 Re8 16. h3 Nc6 17. Nh2 Bg5 18. Bxg5 Qxg5 19. Qe3 Qxe3 20. fxe3 Kg7 21. Rf1 Be6 22. Nf3 f6 23. Rf2 a5 24. d4 Ne7 25. d5 Bd7 26. Nd2 a4 27. Raf1 Ng8 28. Bd1 Reb8 29. Bg4 Bxg4 30. hxg4 Ra7 31. Nf3 h6 32. Nd2 Nd7 33. Rc1 Nf8 34. c4 Ne7 35. cxb5 Rxb5 36. Nc4 Nc8 37. Nf1 Nd7 38. Nfd2 Ndb6 39. Rc3 Kf7 40. Rc1 Kg7 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Pilnik, Herman"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "C97"]
[EventDate "1966.03.12"]
[PlyCount "101"]

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. dxc5 dxc5 13. Nbd2 c4 14. Nf1 Be6 15. Bg5 Rad8 16. Qe2 Nh5 17. Bxe7 Qxe7 18. Qe3 Nf4 19. Rad1 Qc7 20. Ng3 f6 21. Nh2 g6 22. Ne2 Nd3 23. Rf1 Nxb2 24. Rxd8 Rxd8 25. f4 Nd3 26. f5 gxf5 27. exf5 Bd5 28. Ng4 Rf8 29. Ng3 Nf4 30. Be4 Kh8 31. Bxd5 Nxd5 32. Qh6 Qg7 33. Qxg7+ Kxg7 34. Rd1 Nf4 35. Rd6 h5 36. Ne3 Nb7 37. Rxa6 Nc5 38. Rc6 h4 39. Nh5+ Nxh5 40. Rxc5 Ra8 41. Rxb5 Rxa2 42. Nxc4 Kh6 43. Nd6 Kg5 44. Rb8 Ra6 45. Rg8+ Kf4 46. Rg4+ Ke3 47. Nc4+ Ke2 48. Re4+ Kd3 49. Rxh4 Ng3 50. Nb2+ Ke3 51. Ra4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Rubinetti, Jorge Alberto"]
[Black "Garcia, Raimundo"]
[Result "1/2-1/2"]
[ECO "B81"]
[EventDate "1966.03.12"]
[PlyCount "34"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6 7. g5 hxg5 8. Bxg5 Nc6 9. Qd2 a6 10. O-O-O Bd7 11. Kb1 Qb6 12. Nb3 O-O-O 13. f4 Be7 14. Be2 Rh3 15. Bd3 Qe3 16. Qxe3 Rxe3 17. Nd2 b5 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Schweber, Samuel"]
[Black "Guimard, Carlos Enrique"]
[Result "1/2-1/2"]
[ECO "C13"]
[EventDate "1966.03.12"]
[PlyCount "113"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 Nd7 8. c3 Be7 9. Bd3 c5 10. dxc5 Nxc5 11. Nxc5 Bxc5 12. Qe2 Qc7 13. O-O O-O 14. Rad1 Be7 15. Ne5 g6 16. f4 Bf6 17. g3 Rd8 18. h4 Bd7 19. Nxd7 Rxd7 20. Bb5 Rxd1 21. Rxd1 Rd8 22. Rxd8+ Bxd8 23. Bd3 Bf6 24. Kg2 Qc5 25. Be4 b6 26. Qd3 Kg7 27. Kf1 b5 28. a3 a5 29. Kg2 h5 30. Bf3 b4 31. axb4 axb4 32. cxb4 Qxb4 33. b3 Qe1 34. Kh3 Bc3 35. Qd1 Qe3 36. Qe2 Qc1 37. Qd3 Qb2 38. Bd1 Kh6 39. Qc2 Qa1 40. Bf3 Qf1+ 41. Bg2 Qe1 42. Qd3 Kg7 43. Bf3 Qa1 44. Qc2 Bd4 45. Bg2 Qe1 46. Qd3 Bf2 47. Qf3 Bd4 48. Qd3 Qf2 49. Bf3 Qb2 50. Be4 Bc3 51. Qc2 Qa1 52. Bf3 Qa5 53. Qd3 Qc5 54. Be4 Be1 55. Bg2 Qf2 56. Qf3 Qb2 57. Bf1 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Smyslov, Vassily"]
[Black "Rossetto, Hector Decio"]
[Result "1-0"]
[ECO "A50"]
[EventDate "1966.03.12"]
[PlyCount "57"]

1. c4 Nc6 2. d4 e5 3. d5 Nce7 4. Nc3 Nf6 5. g3 Ng6 6. Bg2 Bb4 7. Qc2 a5 8. e4 d6 9. Nge2 O-O 10. O-O Bd7 11. Na4 Qe8 12. Nec3 Qc8 13. Nb5 Bh3 14. Bxh3 Qxh3 15. a3 c6 16. axb4 cxb5 17. Nb6 Ra6 18. bxa5 bxc4 19. f3 Nd7 20. Nxc4 Rc8 21. Be3 f5 22. exf5 Ne7 23. Qb3 Nxf5 24. Qxb7 Rxc4 25. Qxd7 h5 26. Rac1 Rxc1 27. Rxc1 Kh7 28. b4 Ra8 29. Bf2 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Stein, Leonid"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "D36"]
[EventDate "1966.03.12"]
[PlyCount "50"]

1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Qc2 Nbd7 8. Nf3 Nf8 9. Bd3 Ne6 10. Bh4 g6 11. O-O Ng7 12. b4 O-O 13. b5 Bf5 14. bxc6 bxc6 15. Ne5 Rc8 16. Na4 Bxd3 17. Nxd3 Ne4 18. Bg3 Nf5 19. Rab1 Nfxg3 20. hxg3 Bd6 21. Nac5 Re8 22. Nxe4 Rxe4 23. Nc5 Bxc5 24. Qxc5 Qe7 25. Rfc1 Rxe3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Stein, Leonid"]
[Black "Sanguineti, Raul"]
[Result "1-0"]
[ECO "D16"]
[EventDate "1966.03.12"]
[PlyCount "43"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6 6. e4 Bg4 7. Bxc4 e6 8. O-O Be7 9. Be3 Nb4 10. Rc1 h6 11. Qe2 O-O 12. Rfd1 Re8 13. h3 Bh5 14. g4 Bg6 15. Bf4 Bh7 16. Ne5 Qb6 17. h4 Bf8 18. Qf3 Bg6 19. Nxg6 fxg6 20. Bxh6 gxh6 21. Qxf6 Kh7 22. h5 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.24"]
[Round "11"]
[White "Uhlmann, Wolfgang"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[ECO "E12"]
[EventDate "1966.03.12"]
[PlyCount "30"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 Be7 6. e3 h6 7. Bh4 c5 8. Bd3 cxd4 9. Nxd4 O-O 10. O-O Nc6 11. Nxc6 Bxc6 12. Qe2 Ne4 13. Bxe7 Nxc3 14. Bxd8 Nxe2+ 15. Bxe2 Rfxd8 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.26"]
[Round "12"]
[White "Eliskases, Erich"]
[Black "Smyslov, Vassily"]
[Result "1/2-1/2"]
[ECO "B07"]
[EventDate "1966.03.12"]
[PlyCount "63"]

1. e4 d6 2. d4 Nf6 3. f3 e6 4. c4 Be7 5. Nc3 O-O 6. Be3 c5 7. d5 exd5 8. cxd5 Nbd7 9. Nh3 a6 10. a4 Ne5 11. Nf2 Bd7 12. Be2 b5 13. O-O b4 14. Nb1 Ne8 15. f4 Ng6 16. Nd2 f5 17. Nc4 fxe4 18. Nxe4 Nh4 19. g4 Nf6 20. Ng3 h6 21. h3 Rb8 22. b3 Bc8 23. Ra2 Bb7 24. Rd2 Ne8 25. Rd3 Bf6 26. f5 Qe7 27. Nh5 Qe4 28. Nf4 g5 29. Nd2 Qe5 30. Nc4 Qe4 31. Nd2 Qe5 32. Nc4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.26"]
[Round "12"]
[White "Garcia, Raimundo"]
[Black "Pilnik, Herman"]
[Result "1/2-1/2"]
[ECO "A42"]
[EventDate "1966.03.12"]
[PlyCount "71"]

1. c4 e5 2. Nc3 d6 3. Nf3 Nd7 4. d4 g6 5. e4 c6 6. Be2 Bg7 7. O-O Nh6 8. Rb1 O-O 9. d5 c5 10. Nb5 Nf6 11. Bg5 Kh8 12. Nd2 a6 13. Nc3 Qc7 14. a3 Nd7 15. b4 f5 16. Nb3 Nf7 17. Bd2 b6 18. Bd3 Nf6 19. Qc2 f4 20. f3 Bd7 21. bxc5 dxc5 22. a4 Nd6 23. Be1 g5 24. h3 h5 25. Nd2 a5 26. Nb5 Nxb5 27. cxb5 Ne8 28. Nc4 Nd6 29. Bc3 Nxc4 30. Bxc4 Qd6 31. Kf2 Bf6 32. Ke2 Rf7 33. Kd3 Rh7 34. Rh1 Kg7 35. Qb2 Re8 36. Kc2 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.26"]
[Round "12"]
[White "Guimard, Carlos Enrique"]
[Black "Emma, Jaime"]
[Result "0-1"]
[ECO "E63"]
[EventDate "1966.03.12"]
[PlyCount "94"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nc6 7. O-O Rb8 8. h3 a6 9. a3 Na5 10. Qa4 b6 11. Nd5 c5 12. Nxf6+ Bxf6 13. Bh6 Re8 14. Rad1 Bd7 15. Qc2 Qc8 16. Bg5 Bg7 17. b4 cxb4 18. axb4 Nxc4 19. Qe4 h6 20. Bc1 Bxh3 21. Bxh3 Qxh3 22. d5 Rbc8 23. Rd3 Ne5 24. Nxe5 Bxe5 25. Bd2 b5 26. Ra3 h5 27. Rxa6 Rc4 28. Qg2 Qc8 29. Rc6 Qg4 30. f4 Bf6 31. Qf3 Qxf3 32. exf3 Rd4 33. Be3 Rxd5 34. Rb6 Rc8 35. Kg2 Rc4 36. Rb1 Rc2+ 37. Kh3 Rc3 38. Re1 Rb3 39. g4 Rdd3 40. g5 Bxg5 41. Rb8+ Kg7 42. fxg5 Rxe3 43. Rxe3 Rxe3 44. Kh4 Re5 45. f4 Rf5 46. Kg3 e5 47. Kf3 Rxf4+ 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.26"]
[Round "12"]
[White "Portisch, Lajos"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]
[ECO "A38"]
[EventDate "1966.03.12"]
[PlyCount "110"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 c5 6. Nc3 cxd4 7. Nxd4 Nc6 8. Nc2 d6 9. b3 Bf5 10. e4 Bg4 11. Qd2 a6 12. Ne3 Qa5 13. Bb2 Be6 14. O-O b5 15. f4 bxc4 16. f5 Bh6 17. fxe6 Ng4 18. Rf4 Bxf4 19. gxf4 Qc5 20. Re1 fxe6 21. Na4 Qa7 22. bxc4 Nxe3 23. Rxe3 Rxf4 24. c5 dxc5 25. Qc3 e5 26. Qc4+ Kg7 27. Qxc5 Rf6 28. Qxa7 Rxa7 29. Nc5 Nd4 30. Bh3 Rb6 31. Nb3 Rd6 32. Nxd4 exd4 33. e5 Rd8 34. Rd3 Rc7 35. Be6 Rc2 36. Bxd4 a5 37. Bb3 Re2 38. Re3 Rxe3 39. Bxe3 Rc8 40. e6 Ra8 41. Bd4+ Kf8 42. Kf2 a4 43. Bd1 Ra6 44. Bc3 h5 45. Bb4 Rxe6 46. Bxa4 Re4 47. a3 Rh4 48. Kg3 Rg4+ 49. Kh3 Rg1 50. Bc6 g5 51. Bd2 Ra1 52. Bxg5 Rxa3+ 53. Kh4 Ra5 54. Bh6+ Kf7 55. Bf3 Kg6 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.26"]
[Round "12"]
[White "Reshevsky, Samuel Herman"]
[Black "Pelikan, Jorge"]
[Result "1/2-1/2"]
[ECO "C10"]
[EventDate "1966.03.12"]
[PlyCount "84"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. O-O Ngf6 8. Ng3 Be7 9. Qe2 O-O 10. Rd1 Bxf3 11. Qxf3 c6 12. c4 Bd6 13. b3 Re8 14. Bb2 a5 15. a3 Qc7 16. Re1 Rad8 17. Rad1 c5 18. dxc5 Bxc5 19. h3 Bd6 20. Ne4 Nxe4 21. Qxe4 f5 22. Qe2 g6 23. g4 Bc5 24. Qf3 Qc6 25. Qxc6 bxc6 26. gxf5 exf5 27. Rxe8+ Rxe8 28. Bf1 Nf8 29. Bc3 Rb8 30. Rb1 Bxa3 31. Bg2 Bb4 32. Bxb4 Rxb4 33. Bxc6 Kg7 34. Ra1 Rxb3 35. h4 Ne6 36. Rxa5 Nf4 37. c5 Rc3 38. Bb7 Kf6 39. c6 h6 40. Ra1 g5 41. hxg5+ hxg5 42. Rd1 g4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.26"]
[Round "12"]
[White "Rossetto, Hector Decio"]
[Black "Uhlmann, Wolfgang"]
[Result "1-0"]
[ECO "B15"]
[EventDate "1966.03.12"]
[PlyCount "59"]

1. d4 g6 2. e4 Bg7 3. Nc3 c6 4. Be3 d5 5. Qd2 Nf6 6. e5 Ng4 7. Bf4 h5 8. h3 Nh6 9. g4 Ng8 10. gxh5 Rxh5 11. Be2 Rh8 12. O-O-O Bf5 13. h4 Nd7 14. h5 gxh5 15. Rxh5 Rxh5 16. Bxh5 Nf8 17. Nf3 Bg6 18. Bxg6 fxg6 19. Rg1 e6 20. Ne2 Qc7 21. Bg5 Ne7 22. Nh4 Nf5 23. Nxf5 exf5 24. Nf4 Kf7 25. e6+ Nxe6 26. Nxe6 Kxe6 27. Re1+ Kf7 28. Re7+ Qxe7 29. Bxe7 Rh8 30. Qb4 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.26"]
[Round "12"]
[White "Sanguineti, Raul"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[ECO "C50"]
[EventDate "1966.03.12"]
[PlyCount "63"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. d4 Be7 5. h3 exd4 6. Nxd4 Nf6 7. Nc3 O-O 8. O-O Ne5 9. Be2 c6 10. Re1 Re8 11. Bf1 Bf8 12. a4 a5 13. Kh1 Bg4 14. Qd2 Bd7 15. f4 Ng6 16. Qf2 Qb6 17. Bd3 Rab8 18. Rb1 Qc7 19. Bd2 Bc8 20. g4 Nd7 21. h4 Nc5 22. h5 Bxg4 23. hxg6 hxg6 24. Be2 Qd7 25. Qg3 Bxe2 26. Rxe2 d5 27. e5 Be7 28. Rh2 Ne4 29. Nxe4 dxe4 30. f5 Qxd4 31. Qh3 Bh4 32. Qxh4 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.26"]
[Round "12"]
[White "Schweber, Samuel"]
[Black "Bolbochan, Julio"]
[Result "1/2-1/2"]
[ECO "C91"]
[EventDate "1966.03.12"]
[PlyCount "42"]

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. d4 Bg4 10. Be3 exd4 11. cxd4 Na5 12. Bc2 c5 13. Nbd2 cxd4 14. Bxd4 Nc6 15. Be3 d5 16. h3 Bh5 17. Bg5 Bxf3 18. Nxf3 Nxe4 19. Bxe7 Nxe7 20. Bxe4 dxe4 21. Rxe4 Nc6 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.27"]
[Round "13"]
[White "Bolbochan, Julio"]
[Black "Guimard, Carlos Enrique"]
[Result "1-0"]
[ECO "E18"]
[EventDate "1966.03.12"]
[PlyCount "95"]

1. d4 e6 2. Nf3 Nf6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 exd5 9. Ne5 c6 10. e4 dxe4 11. Nxe4 Nd5 12. Nc3 Bf6 13. Qb3 Nxc3 14. bxc3 Bxe5 15. dxe5 Re8 16. Bf4 Qc8 17. Rad1 Na6 18. Rd6 Nc5 19. Qc2 Ne6 20. Be3 c5 21. f4 Nf8 22. Rfd1 Qc7 23. c4 Bxg2 24. Qxg2 Rad8 25. R6d5 Rc8 26. Qe4 f6 27. Qf5 Qf7 28. exf6 Qxf6 29. Qxf6 gxf6 30. Kf2 Re4 31. Rc1 Rce8 32. Rc3 Ne6 33. Kf3 Nc7 34. Rd7 R4e7 35. Rcd3 Ne6 36. Rxe7 Rxe7 37. f5 Nf8 38. Rd8 Kg7 39. Bf4 Rd7 40. Rxd7+ Nxd7 41. g4 Kf7 42. Ke4 Ke8 43. Kd5 Ke7 44. h4 Kf7 45. a4 Ke7 46. Bd6+ Kf7 47. Kc6 Ke8 48. g5 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.27"]
[Round "13"]
[White "Emma, Jaime"]
[Black "Reshevsky, Samuel Herman"]
[Result "0-1"]
[ECO "B52"]
[EventDate "1966.03.12"]
[PlyCount "108"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. Qe2 Qg4 7. d3 Qxg2 8. Rg1 Qh3 9. Bg5 g6 10. Bxf6 exf6 11. Nbd2 Bh6 12. O-O-O Nc6 13. Kb1 O-O-O 14. Nb3 Rhe8 15. d4 Qh5 16. Rge1 Kb8 17. Ng1 Qxe2 18. Rxe2 b6 19. f3 Kc7 20. Kc2 Ne7 21. h4 f5 22. h5 fxe4 23. fxe4 f5 24. hxg6 hxg6 25. dxc5 dxc5 26. Rde1 f4 27. Nf3 Nc6 28. Rg2 Re6 29. Nbd2 Rg8 30. Rh1 Bf8 31. Rg4 Bd6 32. Rh7+ Kb8 33. a4 Bc7 34. Ng5 Rf6 35. Ndf3 Re8 36. Rh1 Ne5 37. Nxe5 Rxe5 38. Re1 f3 39. Rf1 f2 40. Kd3 c4+ 41. Kxc4 a6 42. Nh7 Rf3 43. Kd4 Ra5 44. Rxg6 Rxa4+ 45. b4 Ra2 46. Rf6 Rd2+ 47. Kc4 b5+ 48. Kb3 Rxf6 49. Nxf6 Bg3 50. Nh5 Be5 51. c4 Rb2+ 52. Ka3 bxc4 53. Nf4 Rb3+ 54. Ka4 Bb2 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.27"]
[Round "13"]
[White "Pelikan, Jorge"]
[Black "Garcia, Raimundo"]
[Result "0-1"]
[ECO "A21"]
[EventDate "1966.03.12"]
[PlyCount "82"]

1. g3 e5 2. c4 d6 3. Nc3 g6 4. Bg2 Bg7 5. Nf3 f5 6. d3 Nf6 7. Rb1 O-O 8. Bd2 Nc6 9. Qc1 e4 10. dxe4 Re8 11. exf5 Bxf5 12. Ra1 Bd3 13. O-O Bxc4 14. Bg5 Qd7 15. Bxf6 Bxf6 16. Qf4 Qf7 17. Ng5 Bxg5 18. Qxg5 Nd4 19. Bxb7 Rab8 20. Rad1 Nxe2+ 21. Nxe2 Rxb7 22. Rd4 Rb5 23. Qc1 Bxe2 24. Re1 Rbe5 25. Rf4 Qe7 26. Qc3 c5 27. b4 Bb5 28. Rxe5 Qxe5 29. Qxe5 dxe5 30. Re4 Bd3 31. Re3 c4 32. f3 e4 33. fxe4 Rxe4 34. Kf2 Kf7 35. a4 Ke7 36. Rxe4+ Bxe4 37. Ke3 c3 38. h4 h6 39. g4 Kd6 40. g5 hxg5 41. hxg5 Bf5 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.27"]
[Round "13"]
[White "Pilnik, Herman"]
[Black "Sanguineti, Raul"]
[Result "1-0"]
[ECO "E42"]
[EventDate "1966.03.12"]
[PlyCount "115"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 cxd4 6. exd4 d5 7. a3 Be7 8. Ng3 O-O 9. Be3 b6 10. cxd5 Nxd5 11. Nxd5 Qxd5 12. Be2 Bb7 13. Bf3 Qd7 14. O-O Bxf3 15. Qxf3 Nc6 16. Rfd1 Rfd8 17. Nh5 Qd5 18. Qe2 Rac8 19. h3 Na5 20. Rac1 g6 21. Nf4 Qd7 22. Rxc8 Rxc8 23. d5 e5 24. d6 Bxd6 25. Nd5 Qe6 26. Bg5 Nc6 27. Nf6+ Kh8 28. Qa6 Be7 29. Ne4 Rc7 30. Be3 Kg7 31. Qd3 f6 32. Nc3 Rc8 33. Qd7 Kf7 34. Qb7 Rb8 35. Qa6 f5 36. Nb5 f4 37. Nc7 Qb3 38. Rd3 Qc2 39. Rc3 Qe4 40. f3 Qb1+ 41. Rc1 Qxb2 42. Qc4+ Kg7 43. Ne6+ Kh8 44. Qxc6 fxe3 45. Qc8+ Bf8 46. Qxb8 Qxc1+ 47. Kh2 Qxa3 48. Nxf8 Kg7 49. Ne6+ Kf6 50. Nc7 e2 51. Qd8+ Kf7 52. Qe8+ Kg7 53. Qxe5+ Kg8 54. Qe6+ Kg7 55. Ne8+ Kf8 56. Nd6 Kg7 57. Qe7+ Kh6 58. Nf5+ 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.27"]
[Round "13"]
[White "Rubinetti, Jorge Alberto"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[ECO "C73"]
[EventDate "1966.03.12"]
[PlyCount "130"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6 7. Nc3 g6 8. h4 h5 9. Be3 Bg7 10. Qd3 Bd7 11. O-O-O Nh6 12. dxe5 fxe5 13. Ng5 Qe7 14. Qc4 Nf7 15. Rh3 Nxg5 16. Bxg5 Qf7 17. Qxf7+ Kxf7 18. Rf3+ Kg8 19. Rdd3 Bg4 20. Rfe3 Kf7 21. Na4 Rhb8 22. Rb3 Bf8 23. Rec3 Bd7 24. Rf3+ Ke8 25. Rf6 Rxb3 26. axb3 Bg7 27. Rf3 d5 28. Nc5 Bg4 29. Re3 d4 30. Re1 Kf7 31. Kd2 Bf8 32. Nd3 Bd6 33. Ra1 Bc8 34. Ra5 Ke6 35. Ke2 Rb8 36. g3 Rb5 37. Bd2 Rxa5 38. Bxa5 c5 39. f3 Bd7 40. c4 dxc3 41. bxc3 c4 42. bxc4 c6 43. c5 Be7 44. Bc7 Bf6 45. c4 Bc8 46. Kd2 Bd7 47. Kc3 Be8 48. Kb4 Bf7 49. Bd6 Bg7 50. Kb3 a5 51. Ka4 Kd7 52. Nb2 Be6 53. Kxa5 Bh3 54. Nd3 Bg2 55. Ne1 Bf1 56. Kb4 Be2 57. Kc3 Ke6 58. Kb4 Kd7 59. Kc3 Ke6 60. Kd2 Bxc4 61. Ke3 Bf6 62. Ng2 Bf1 63. Ne1 Bc4 64. Nc2 Bb5 65. Ne1 Bc4 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.27"]
[Round "13"]
[White "Smyslov, Vassily"]
[Black "Schweber, Samuel"]
[Result "1-0"]
[ECO "A21"]
[EventDate "1966.03.12"]
[PlyCount "59"]

1. c4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 d6 5. d3 f5 6. e4 Nf6 7. Nge2 O-O 8. O-O c5 9. exf5 gxf5 10. f4 Nc6 11. fxe5 dxe5 12. Bg5 h6 13. Bh4 Ne7 14. Qb3 Qxd3 15. Rad1 Qe3+ 16. Kh1 h5 17. Nf4 exf4 18. Rfe1 Nc6 19. Rxe3 fxe3 20. Bxf6 Bxf6 21. Nd5 e2 22. Re1 Nd4 23. Qe3 Kg7 24. Nxf6 Kxf6 25. Qh6+ Ke7 26. Qg7+ Rf7 27. Qe5+ Kd8 28. Qxc5 Rd7 29. Bd5 Ne6 30. Qe3 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.27"]
[Round "13"]
[White "Uhlmann, Wolfgang"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "D26"]
[EventDate "1966.03.12"]
[PlyCount "28"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. dxc5 Qxd1+ 7. Kxd1 Bxc5 8. a3 a6 9. b4 Bd6 10. Bb2 Nbd7 11. Ke2 b5 12. Bd3 Bb7 13. Nbd2 Ke7 14. Rac1 Rac8 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.29"]
[Round "14"]
[White "Bolbochan, Julio"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[ECO "D16"]
[EventDate "1966.03.12"]
[PlyCount "98"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6 6. e3 Bg4 7. Bxc4 e6 8. O-O Nb4 9. Qe2 Be7 10. Rd1 O-O 11. h3 Bh5 12. Bb3 c5 13. dxc5 Qa5 14. e4 Bxc5 15. e5 Nfd5 16. Ne4 Be7 17. Bd2 Rfd8 18. Ng3 Bg6 19. h4 h6 20. h5 Bh7 21. Qc4 Rac8 22. Qg4 Kh8 23. Rac1 Rxc1 24. Rxc1 Qb6 25. Bxd5 Nxd5 26. Qd4 Qb3 27. Qxa7 Qxb2 28. Qd4 Qxd4 29. Nxd4 Ba3 30. Re1 Nb4 31. Bc3 Nd3 32. Re2 Bc5 33. Nb5 b6 34. Rd2 Ra8 35. Ra2 Nxf2 36. Rxf2 Rxa4 37. Nd6 Rf4 38. Be1 Bd3 39. Nf1 Kg8 40. g3 Ra4 41. Kg2 Bxf2 42. Kxf2 b5 43. Nd2 b4 44. Ke3 Ra3 45. Kd4 Bc2 46. N2c4 Rd3+ 47. Kc5 b3 48. Kc6 Re3 49. Bd2 Rxg3 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.29"]
[Round "14"]
[White "Eliskases, Erich"]
[Black "Stein, Leonid"]
[Result "0-1"]
[ECO "E82"]
[EventDate "1966.03.12"]
[PlyCount "56"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 b6 7. Rc1 c5 8. Nge2 Nc6 9. g3 e5 10. dxe5 Nxe5 11. Ng1 Re8 12. Be2 a6 13. Qd2 Be6 14. b3 Nc6 15. Bd1 Nd4 16. Bxd4 cxd4 17. Nce2 d3 18. Qxd3 b5 19. Nf4 Bf5 20. Qf1 Bxe4 21. Nge2 Bb7 22. Nd5 Bxd5 23. cxd5 Nxd5 24. b4 Nxb4 25. Bb3 Nd3+ 26. Kd2 Nxc1 27. Nxc1 Rc8 28. Qd3 Qf6 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.29"]
[Round "14"]
[White "Garcia, Raimundo"]
[Black "Emma, Jaime"]
[Result "1/2-1/2"]
[ECO "A47"]
[EventDate "1966.03.12"]
[PlyCount "133"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 4. Bh4 c5 5. e3 b6 6. Nbd2 Bb7 7. c3 Be7 8. Bd3 O-O 9. O-O Nc6 10. Re1 cxd4 11. exd4 Rc8 12. a4 Nd5 13. Bxe7 Ncxe7 14. Bf1 a5 15. Ne4 d6 16. Qb3 Qc7 17. Rad1 Ng6 18. g3 Rfd8 19. Bh3 Nf8 20. Ned2 Rb8 21. Bg2 Nf6 22. Nc4 Bd5 23. Nfd2 Bxg2 24. Kxg2 Qc6+ 25. Kg1 Ng6 26. Qb5 Qxb5 27. axb5 d5 28. Ne5 Nxe5 29. dxe5 Nd7 30. Nf3 Rdc8 31. Nd4 Rc5 32. f4 Rbc8 33. Ra1 Rc4 34. Nc6 Re8 35. b4 axb4 36. cxb4 Kf8 37. Ra6 Rc8 38. Rea1 g5 39. Ra7 Nc5 40. bxc5 Rxc5 41. Ra8 Rxa8 42. Rxa8+ Kg7 43. Na7 Rc1+ 44. Kf2 Ra1 45. fxg5 hxg5 46. h4 gxh4 47. gxh4 Ra2+ 48. Ke3 Ra4 49. Kd3 Ra1 50. Kc3 Ra3+ 51. Kb4 Ra1 52. Rb8 Rxa7 53. Rxb6 Ra1 54. Ra6 Rh1 55. Kc5 Rxh4 56. b6 Rc4+ 57. Kb5 Rc8 58. b7 Rb8 59. Kc6 Kg6 60. Ra8 Rxb7 61. Kxb7 Kf5 62. Kc6 Kxe5 63. Kc5 f5 64. Ra1 Ke4 65. Re1+ Kd3 66. Rxe6 f4 67. Rf6 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.29"]
[Round "14"]
[White "Guimard, Carlos Enrique"]
[Black "Reshevsky, Samuel Herman"]
[Result "0-1"]
[ECO "A48"]
[EventDate "1966.03.12"]
[PlyCount "130"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 c5 5. e3 cxd4 6. exd4 Nc6 7. c3 O-O 8. Be2 d6 9. O-O h6 10. Bh4 Qc7 11. Re1 Re8 12. Nc4 Nd5 13. Bg3 b6 14. Nfd2 b5 15. Bf3 Nf6 16. Ne3 Bb7 17. h4 e5 18. dxe5 Nxe5 19. Bxb7 Qxb7 20. Nb3 Nc4 21. Nxc4 bxc4 22. Nd2 Qxb2 23. Nxc4 Qxc3 24. Nxd6 Rxe1+ 25. Qxe1 Ne4 26. Qxc3 Bxc3 27. Rc1 Nxg3 28. fxg3 Be5 29. Ne4 f5 30. Nd2 Bxg3 31. Rc6 Kg7 32. h5 gxh5 33. Ra6 Be5 34. Nf3 Bc7 35. Rc6 Bb6+ 36. Kh2 Re8 37. Nh4 Re5 38. Kg3 Be3 39. Rc7+ Kf6 40. Kf3 Bg5 41. Kg3 f4+ 42. Kh3 Re1 43. Rc6+ Kf7 44. g3 fxg3 45. Kxg3 Re3+ 46. Nf3 Ra3 47. Rc2 Ke6 48. Kg2 Kd5 49. Rb2 h4 50. Re2 a5 51. Re5+ Kd6 52. Re2 a4 53. Nd4 h3+ 54. Kf2 Rd3 55. Nf3 Ra3 56. Nd4 Kc5 57. Ne6+ Kc4 58. Rc2+ Rc3 59. Rxc3+ Kxc3 60. Kg3 Kb2 61. Kxh3 Kxa2 62. Nd4 Bf6 63. Nb5 Kb3 64. Kg4 Kb4 65. Nc7 Bb2 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.29"]
[Round "14"]
[White "Portisch, Lajos"]
[Black "Pilnik, Herman"]
[Result "0-1"]
[ECO "A55"]
[EventDate "1966.03.12"]
[PlyCount "114"]

1. c4 Nf6 2. Nc3 d6 3. d4 Nbd7 4. Nf3 e5 5. e4 c6 6. Be2 Be7 7. O-O O-O 8. Re1 a6 9. Bf1 Rb8 10. b3 b5 11. Bb2 Bb7 12. a3 Re8 13. Rc1 Bf8 14. cxb5 cxb5 15. d5 g6 16. Nd2 Bh6 17. Rc2 Rc8 18. Bc1 Rc7 19. b4 Nb6 20. Nb3 Bxc1 21. Rxc1 Qc8 22. Qd2 Nc4 23. Bxc4 Rxc4 24. Na5 Rc7 25. f3 Qb8 26. Qe3 Rec8 27. Ne2 Nd7 28. Rf1 Kg7 29. f4 Rxc1 30. Nxc1 Ba8 31. fxe5 Nxe5 32. h3 Qc7 33. Ne2 Re8 34. Ng3 Qe7 35. Rc1 h5 36. Rc3 h4 37. Ne2 Nd7 38. Qd4+ Nf6 39. Qb6 Nd7 40. Qd4+ Nf6 41. Rf3 Qe5 42. Qxe5 Rxe5 43. Nc3 Nxe4 44. Nc6 Re8 45. Nxe4 Rxe4 46. Rc3 f5 47. Kf2 Kf6 48. Rc1 g5 49. Kf3 Re8 50. Ra1 Re4 51. a4 bxa4 52. Rxa4 Bb7 53. Ra5 Rc4 54. Nd8 Rxb4 55. Nxb7 Rxb7 56. Rxa6 Rb3+ 57. Kf2 Ke5 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.29"]
[Round "14"]
[White "Rossetto, Hector Decio"]
[Black "Rubinetti, Jorge Alberto"]
[Result "1-0"]
[ECO "A48"]
[EventDate "1966.03.12"]
[PlyCount "78"]

1. d4 c5 2. e3 Nf6 3. Nf3 g6 4. dxc5 Qa5+ 5. Nbd2 Bg7 6. a3 Qxc5 7. b4 Qc7 8. Bb2 O-O 9. c4 d6 10. Be2 b6 11. O-O Bb7 12. Rc1 Nbd7 13. Qb3 Rac8 14. Rfd1 Qb8 15. Nf1 Qa8 16. Ng3 a6 17. Bd4 Rfe8 18. Qb2 Bc6 19. Bc3 Nf8 20. h3 Ne6 21. Kh2 h5 22. Kg1 b5 23. cxb5 axb5 24. Nf1 Qb7 25. N1d2 Bd5 26. Nb3 Qa8 27. Na5 g5 28. Ne1 h4 29. Bxb5 Red8 30. Be2 g4 31. hxg4 h3 32. gxh3 Ng5 33. Bf1 Rxc3 34. Qxc3 Nxg4 35. Qd2 Bf3 36. Nc6 Bxc6 37. Rxc6 Qxc6 38. hxg4 Qe4 39. Qe2 Bc3 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.29"]
[Round "14"]
[White "Sanguineti, Raul"]
[Black "Pelikan, Jorge"]
[Result "1-0"]
[ECO "C02"]
[EventDate "1966.03.12"]
[PlyCount "81"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. Bd3 cxd4 6. O-O Bc5 7. Bf4 Nge7 8. Nbd2 Bb6 9. a3 a5 10. Re1 Ng6 11. Bg3 O-O 12. h4 f5 13. h5 Nh8 14. Bf4 Qe8 15. h6 g6 16. Ng5 Bc7 17. Ndf3 Bd7 18. Bb5 Qe7 19. Nxd4 Bb6 20. c3 Nxd4 21. Bxd7 Qxd7 22. cxd4 Rac8 23. Nf3 Nf7 24. Qd2 Qb5 25. Rac1 Rc6 26. Rxc6 bxc6 27. Rc1 Rc8 28. b4 axb4 29. axb4 Bd8 30. Bg5 Bb6 31. Be7 Rc7 32. Bd6 Rb7 33. Rc2 Ra7 34. Qc1 Bd8 35. Rc5 Qb7 36. g3 g5 37. Rxc6 Ra1 38. Qxa1 Qxc6 39. Qa7 g4 40. Ne1 Qc3 41. Qd7 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.29"]
[Round "14"]
[White "Schweber, Samuel"]
[Black "Uhlmann, Wolfgang"]
[Result "0-1"]
[ECO "D01"]
[EventDate "1966.03.12"]
[PlyCount "28"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 c6 4. Qd2 Nbd7 5. O-O-O e6 6. e4 dxe4 7. Nxe4 Nxe4 8. Qe3 Qxg5 9. f4 Qg6 10. g4 Ndf6 11. h3 Nd5 12. Qf3 Bd6 13. Ne2 Nxf4 14. Nxf4 Qg5 0-1

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.31"]
[Round "15"]
[White "Emma, Jaime"]
[Black "Sanguineti, Raul"]
[Result "1/2-1/2"]
[ECO "D13"]
[EventDate "1966.03.12"]
[PlyCount "41"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 e6 7. e3 Be7 8. h3 O-O 9. Bd3 Bd7 10. O-O Qb6 11. a3 Rfc8 12. Na4 Qd8 13. b4 Be8 14. Qb3 Bd6 15. Bxd6 Qxd6 16. Rac1 Rc7 17. Rc2 Rac8 18. Rfc1 Nb8 19. Rxc7 Rxc7 20. Rxc7 Qxc7 21. Qc3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.31"]
[Round "15"]
[White "Pelikan, Jorge"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[ECO "A03"]
[EventDate "1966.03.12"]
[PlyCount "50"]

1. f4 d5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nf6 5. O-O b6 6. d3 Bb7 7. c3 O-O 8. a4 c5 9. e4 dxe4 10. Ng5 Qd7 11. Nxe4 Rd8 12. Qe2 Nc6 13. Nf2 Re8 14. g4 Na5 15. Bxb7 Qxb7 16. Nd2 Rad8 17. Rb1 Qd7 18. Nde4 Kh8 19. Ng5 e6 20. Qf3 Nb3 21. Qh3 h6 22. Be3 Nd5 23. Rbe1 Kg8 24. Nf3 Qxa4 25. Qg3 Nxe3 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.31"]
[Round "15"]
[White "Pilnik, Herman"]
[Black "Rossetto, Hector Decio"]
[Result "1/2-1/2"]
[ECO "B07"]
[EventDate "1966.03.12"]
[PlyCount "110"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f3 c6 5. Be3 Qb6 6. Qc1 Nbd7 7. Bd3 Bg7 8. Nge2 Qa5 9. O-O O-O 10. Qe1 e5 11. Qf2 Nh5 12. a3 exd4 13. Nxd4 Nc5 14. Be2 Qc7 15. Rad1 Qe7 16. Rfe1 a5 17. Bf1 Ne6 18. Qd2 Nxd4 19. Bxd4 Be5 20. g3 g5 21. Na4 Be6 22. Bxe5 dxe5 23. Qc3 Qc7 24. Nc5 Ng7 25. Nd3 f6 26. Nc5 Rfe8 27. Rd2 Rad8 28. Red1 Rxd2 29. Rxd2 Bc8 30. Nb3 b6 31. Bc4+ Be6 32. Bb5 Rc8 33. Bf1 Kf7 34. Nc1 Rd8 35. b4 axb4 36. axb4 Rxd2 37. Qxd2 Qd7 38. Qxd7+ Bxd7 39. Kf2 Ke7 40. Ke3 Kd6 41. Nb3 Be6 42. Nd2 c5 43. b5 Ne8 44. Bc4 Bd7 45. Bd3 h6 46. f4 exf4+ 47. gxf4 Be6 48. e5+ fxe5 49. fxg5 hxg5 50. Ne4+ Ke7 51. Nxg5 c4 52. Be2 Bd5 53. Ne4 Nc7 54. Nd2 Nxb5 55. Bxc4 Bc6 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.31"]
[Round "15"]
[White "Reshevsky, Samuel Herman"]
[Black "Garcia, Raimundo"]
[Result "1-0"]
[ECO "A53"]
[EventDate "1966.03.12"]
[PlyCount "67"]

1. c4 Nf6 2. Nc3 c6 3. d4 d6 4. e4 e5 5. d5 Be7 6. Be2 O-O 7. Nf3 Na6 8. Nd2 Bd7 9. O-O c5 10. a3 Ne8 11. Nf3 g6 12. Bh6 Ng7 13. Ne1 f5 14. f4 Bf6 15. exf5 gxf5 16. fxe5 dxe5 17. Qd2 b6 18. Nd3 Qe7 19. Nf2 Rae8 20. Rae1 Qf7 21. Kh1 Kh8 22. Bd1 Rg8 23. Nce4 fxe4 24. Nxe4 Nf5 25. g4 Bh4 26. gxf5 Bxe1 27. Qxe1 Bxf5 28. Ng3 Qg6 29. Qe3 Bg4 30. Ba4 Re7 31. Bf8 Rxf8 32. Rxf8+ Kg7 33. Rf1 Nb8 34. d6 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.31"]
[Round "15"]
[White "Rubinetti, Jorge Alberto"]
[Black "Eliskases, Erich"]
[Result "1/2-1/2"]
[ECO "C90"]
[EventDate "1966.03.12"]
[PlyCount "99"]

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. d3 Re8 12. Nbd2 Bf8 13. Nf1 g6 14. Ne3 Bg7 15. Nh2 Kh8 16. Qf3 Be6 17. Nhg4 Ng8 18. Bd2 f6 19. Nd5 f5 20. Nge3 f4 21. Nf1 Nc6 22. Bb3 a5 23. a4 b4 24. Bc4 Nh6 25. Bb5 Bd7 26. Nh2 Nf7 27. Qe2 Ng5 28. Nf3 Ne6 29. g4 Rb8 30. Kg2 Na7 31. Bxd7 Qxd7 32. Bc1 h6 33. Nd2 Rf8 34. f3 Rf7 35. Nc4 Nc6 36. Bd2 Bf8 37. Rh1 Qd8 38. Be1 Rfb7 39. Bf2 Be7 40. Qe1 Qf8 41. Rd1 Bd8 42. Rd2 Rd7 43. Qd1 Qg7 44. Qg1 Kg8 45. h4 Kf7 46. h5 g5 47. Qh2 Qh8 48. Rhd1 Bf6 49. Qg1 Qe8 50. Rc1 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.31"]
[Round "15"]
[White "Smyslov, Vassily"]
[Black "Guimard, Carlos Enrique"]
[Result "1/2-1/2"]
[ECO "C13"]
[EventDate "1966.03.12"]
[PlyCount "35"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Nxf6+ Bxf6 7. Bxf6 Qxf6 8. Nf3 c5 9. c3 cxd4 10. Bb5+ Bd7 11. Bxd7+ Nxd7 12. Qxd4 Qxd4 13. Nxd4 Ke7 14. O-O-O Rhd8 15. Rhe1 Nf6 16. Nf5+ Kf8 17. Ng3 Ke7 18. Nf5+ 1/2-1/2

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.31"]
[Round "15"]
[White "Stein, Leonid"]
[Black "Schweber, Samuel"]
[Result "1-0"]
[ECO "C19"]
[EventDate "1966.03.12"]
[PlyCount "91"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Nbc6 8. a4 Qa5 9. Bd2 c4 10. g3 Bd7 11. Bh3 Ng6 12. O-O Nce7 13. Qb1 b6 14. Bg2 h5 15. h4 Bxa4 16. Bh3 b5 17. Ng5 Nf8 18. Qd1 Qc7 19. Bc1 g6 20. Ba3 Nh7 21. Nf3 Qd8 22. Qd2 Kd7 23. Rfb1 Nf5 24. Bc5 Kc6 25. Qc1 Rg8 26. Rxa4 bxa4 27. Qa3 Qa5 28. Bxf5 Rab8 29. Rxb8 Rxb8 30. Bh3 Kd7 31. Bb4 Qb5 32. Kg2 a5 33. Bd6 Rb6 34. Qc1 Qb2 35. Qf4 f5 36. Qh6 a3 37. Qxh7+ Kc6 38. Qc7+ Kb5 39. Bc5 Ka4 40. Bxb6 a2 41. Bxa5 Qxc2 42. Qb6 Qb1 43. Bb4 a1=Q 44. Qa5+ Kb3 45. Nd2+ Kc2 46. Nxb1 1-0

[Event "22nd Mar del Plata it"]
[Site "Mar del Plata ARG"]
[Date "1966.03.31"]
[Round "15"]
[White "Uhlmann, Wolfgang"]
[Black "Bolbochan, Julio"]
[Result "1-0"]
[ECO "E12"]
[EventDate "1966.03.12"]
[PlyCount "81"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 Ne4 6. Nxe4 Bxe4 7. Bf4 Be7 8. e3 c5 9. Be2 O-O 10. O-O d6 11. Bg3 Qc8 12. Nd2 Bb7 13. dxc5 dxc5 14. Qc2 Nd7 15. Rad1 Nf6 16. e4 Rd8 17. e5 Ne8 18. Ne4 Qc7 19. Bf3 Bc6 20. h4 Rxd1 21. Rxd1 Rd8 22. Rxd8 Bxd8 23. b4 Be7 24. b5 Bb7 25. Qd3 h6 26. Nd6 Bxf3 27. Nxe8 Qb8 28. Nf6+ gxf6 29. exf6 Qe8 30. Qxf3 Bf8 31. Qg4+ Kh8 32. Bd6 Qd8 33. Be7 Qe8 34. h5 Qa8 35. Qg3 Kh7 36. Qd6 Qe4 37. Bxf8 Qe1+ 38. Kh2 Qxf2 39. Qd3+ Kg8 40. Bxh6 Qxf6 41. Qg3+ 1-0
