[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "1"]
[White "Slisser, Theo"]
[Black "Tatai, Stefano"]
[Result "0-1"]
[ECO "A69"]
[PlyCount "63"]
[EventDate "1967.07.17"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Be2 e6 8. Nf3 exd5
9. cxd5 Re8 10. e5 Nfd7 11. O-O dxe5 12. fxe5 Nxe5 13. Bf4 a6 14. a4 Nbd7 15.
d6 Nxf3+ 16. Bxf3 Bd4+ 17. Kh1 Ne5 18. Bd5 Be6 19. Bxe6 Rxe6 20. Ne4 Qh4 21.
Ra3 Qg4 22. Qc2 Qf5 23. Qb1 Nc4 24. Ng5 Qxb1 25. Rxb1 Nxa3 26. bxa3 Re2 27. h3
Be5 28. Bxe5 Rxe5 29. Nf3 Rd5 30. Rxb7 Rd8 31. Rc7 R8xd6 32. Kh2 0-1

[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "2"]
[White "Tatai, Stefano"]
[Black "Jongsma, Lex"]
[Result "1/2-1/2"]
[ECO "B33"]
[PlyCount "43"]
[EventDate "1967.07.17"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8.
Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 12. Nc2 Rb8 13. Qd3 Bg5 14. g3 O-O
15. Bg2 Be6 16. O-O Bh6 17. Rfd1 Qd7 18. a3 b3 19. Ncb4 Nd4 20. Nxa6 Rbc8 21.
Nab4 Rc5 22. Na6 1/2-1/2

[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "3"]
[White "Medina Garcia, Antonio Angel"]
[Black "Tatai, Stefano"]
[Result "1/2-1/2"]
[ECO "C07"]
[PlyCount "71"]
[EventDate "1967.07.17"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nf6 5. exd5 Nxd5 6. Nb3 Nd7 7. Bc4 N7b6 8.
Bb5+ Bd7 9. Bxd7+ Nxd7 10. Qe2 Be7 11. O-O Qc7 12. c4 N5b6 13. dxc5 Nxc5 14.
Nxc5 Qxc5 15. b3 Bf6 16. Be3 Qc7 17. Rad1 O-O 18. Rd3 Rfd8 19. Rfd1 Rxd3 20.
Rxd3 Rd8 21. g3 Rxd3 22. Qxd3 Nd7 23. Qe4 a6 24. b4 Nb6 25. Ne5 Nd5 26. Ng4
Nxe3 27. Nxf6+ gxf6 28. fxe3 Qd6 29. Qxb7 Qd1+ 30. Kg2 Qe2+ 31. Kh3 Qxc4 32.
Qf3 Qxa2 33. Qxf6 Qd5 34. g4 a5 35. bxa5 Qxa5 36. Qf4 1/2-1/2

[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "4"]
[White "Tatai, Stefano"]
[Black "Van der Lijn, Dick"]
[Result "0-1"]
[ECO "B79"]
[PlyCount "122"]
[EventDate "1967.07.17"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2
Bd7 9. Bc4 Qa5 10. Bb3 O-O 11. h4 Rfc8 12. O-O-O Ne5 13. Bh6 Bxh6 14. Qxh6 Rxc3
15. bxc3 Qxc3 16. Kb1 a5 17. a4 Nc4 18. Qc1 Bxa4 19. Rd3 Qb4 20. Qe1 Qb6 21.
Qc3 Ne5 22. Rd2 Bd7 23. Qb2 Qc5 24. Kc1 b5 25. Kd1 a4 26. Ba2 b4 27. Ne2 Nc6
28. Nf4 Rb8 29. Nd5 Nxd5 30. Rxd5 Qf2 31. Rd2 Qe3 32. h5 gxh5 33. Qc1 Ne5 34.
Re2 Qxc1+ 35. Kxc1 Rc8 36. Kb2 Bb5 37. Rd2 Bc4 38. Rxh5 b3 39. cxb3 axb3 40.
Bb1 Be6 41. Rg5+ Kf8 42. Bd3 f6 43. Rh5 Bc4 44. Bb1 Bf7 45. Rxe5 dxe5 46. Rd1
Rc7 47. Rh1 Kg7 48. Rh3 Rd7 49. Kc1 Bc4 50. Rh1 Kg6 51. g3 Kg7 52. Rh2 Rd6 53.
Rd2 h6 54. Rb2 Kf7 55. Rh2 Kg7 56. Rb2 e6 57. Rd2 Rd4 58. Kd1 h5 59. Ke1 Kh6
60. Rb2 Kg5 61. Rh2 Bd3 0-1

[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "5"]
[White "Marovic, Drazen"]
[Black "Tatai, Stefano"]
[Result "1/2-1/2"]
[ECO "E69"]
[PlyCount "63"]
[EventDate "1967.07.17"]

1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4
c6 9. h3 Qb6 10. Re1 Re8 11. Rb1 exd4 12. Nxd4 Ng4 13. Nce2 Nge5 14. Qc2 Qb4
15. Rd1 Qxc4 16. f4 Qxc2 17. Nxc2 Nc4 18. b3 Ncb6 19. Rxd6 Nf6 20. Nc3 Nh5 21.
Rd3 Be6 22. Ba3 Rad8 23. Rbd1 Rxd3 24. Rxd3 Bf8 25. Bxf8 Kxf8 26. Nd4 Bc8 27.
Nde2 Ng7 28. g4 h6 29. Kf2 Ne6 30. Kg3 g5 31. h4 f6 32. Nd1 1/2-1/2

[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "6"]
[White "Tatai, Stefano"]
[Black "De Rooi, Paul"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "55"]
[EventDate "1967.07.17"]

1. e4 g6 2. d4 Bg7 3. Nc3 Nc6 4. Nf3 e5 5. Be3 d6 6. dxe5 Nxe5 7. Nxe5 Bxe5 8.
Qd2 Be6 9. Be2 Ne7 10. f4 Bg7 11. g4 d5 12. Bd4 f6 13. f5 Bf7 14. O-O-O O-O 15.
g5 Nc6 16. gxf6 Nxd4 17. fxg7 Nxe2+ 18. Nxe2 Re8 19. fxg6 Bxg6 20. exd5 Bh5 21.
Rdf1 Bxe2 22. Rf8+ Rxf8 23. gxf8=Q+ Kxf8 24. Qf4+ Ke8 25. Re1 Qe7 26. Kd2 Qf7
27. Rxe2+ Kf8 28. Qb4+ 1-0

[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "7"]
[White "Van der Weide, Piet"]
[Black "Tatai, Stefano"]
[Result "0-1"]
[ECO "B86"]
[PlyCount "76"]
[EventDate "1967.07.17"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. a3 Be7 8. O-O
O-O 9. Ba2 b5 10. f4 Bb7 11. Qe2 Qc7 12. Bd2 Nbd7 13. Rae1 Nc5 14. e5 Nfe4 15.
Nf3 dxe5 16. fxe5 Rac8 17. Bb1 Nxd2 18. Qxd2 Nd7 19. Ne4 Rcd8 20. Qf4 f5 21.
Neg5 Bd5 22. Kh1 Qc4 23. Qc1 Qg4 24. Nh3 Bc5 25. b3 f4 26. c4 bxc4 27. bxc4 Ba8
28. Qc2 g6 29. Nhg5 Be3 30. h3 Qg3 31. Ne4 Bxe4 32. Qxe4 Nc5 33. Qc6 Rb8 34.
Rxe3 fxe3 35. Qxc5 Rxf3 36. Rc1 Rf2 37. Be4 e2 38. Qd6 Rf1+ 0-1

[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "8"]
[White "Smederevac, Petar"]
[Black "Tatai, Stefano"]
[Result "1/2-1/2"]
[ECO "B26"]
[PlyCount "209"]
[EventDate "1967.07.17"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. Qd2 Qa5 8. Nge2
Nd4 9. O-O Ne7 10. Nc1 O-O 11. Nd5 Nec6 12. Ne7+ Kh8 13. Qxa5 Nxa5 14. c3 Nc2
15. Nxc8 Raxc8 16. Rb1 Nxe3 17. fxe3 Bh6 18. Kf2 Nc6 19. Ke2 Ne5 20. h3 b6 21.
Kd2 Rcd8 22. c4 Nc6 23. Ne2 Ne7 24. Nc3 f5 25. Ke2 Bg7 26. g4 fxg4 27. hxg4
Rxf1 28. Rxf1 Bxc3 29. bxc3 Kg7 30. g5 Rf8 31. Rh1 Nc6 32. Bh3 Nd8 33. a4 Rh8
34. d4 h6 35. gxh6+ Rxh6 36. Kf3 Rh4 37. Kg3 Rxe4 38. Re1 g5 39. Bg2 Rh4 40. a5
Nf7 41. axb6 axb6 42. Rb1 Rh8 43. Rxb6 Rc8 44. Bh3 cxd4 45. cxd4 Re8 46. e4 Kf6
47. e5+ Nxe5 48. dxe5+ Kxe5 49. Bf1 Rf8 50. Be2 Rf4 51. Rb5+ Kf6 52. Rb8 Ke7
53. Rh8 Re4 54. Kf3 Re5 55. Rh7+ Kf6 56. Bd3 Ra5 57. Rh6+ Ke5 58. Ke3 d5 59.
Rg6 Kd6 60. Rxg5 Ra1 61. cxd5 exd5 62. Bc2 Kc5 63. Kd2 Ra8 64. Kc3 Rh8 65. Be4
Rd8 66. Bg2 Rd6 67. Rg8 Ra6 68. Rc8+ Rc6 69. Ra8 Kd6+ 70. Kd3 Rc7 71. Bf3 Ke5
72. Rd8 Rc5 73. Bd1 Rc6 74. Bb3 Rd6 75. Rh8 Rf6 76. Kc3 Rf7 77. Rd8 Rf3+ 78.
Kc2 Rf2+ 79. Kd1 d4 80. Re8+ Kd6 81. Ra8 Ke5 82. Bc2 Rh2 83. Ra5+ Kd6 84. Be4
Ke6 85. Bf3 Rf2 86. Be2 Rg2 87. Kd2 Rg3 88. Bc4+ Kf6 89. Rd5 Rg4 90. Kd3 Rg1
91. Rc5 Rg4 92. Bd5 Rg1 93. Kxd4 Rd1+ 94. Ke4 Re1+ 95. Kf4 Rf1+ 96. Bf3 Ke6 97.
Ke4 Ke7 98. Rd5 Ra1 99. Ke5 Re1+ 100. Be4 Re2 101. Ra5 Re1 102. Ra7+ Ke8 103.
Kd5 Kf8 104. Bf5 Re7 105. Ra6 1/2-1/2

[Event "Torneo Internazionale B IBM"]
[Site "Amsterdam NED"]
[Date "1967.07.??"]
[Round "9"]
[White "Tatai, Stefano"]
[Black "Gereben, Erno"]
[Result "1-0"]
[ECO "C69"]
[PlyCount "229"]
[EventDate "1967.07.17"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 6. d4 exd4 7. Nxd4 c5 8.
Nb3 Qxd1 9. Rxd1 Bd6 10. Na5 Bg4 11. Re1 O-O-O 12. Nc4 Bf8 13. Be3 b6 14. a4
Ne7 15. Nba3 Nc6 16. c3 Be7 17. f3 Be6 18. Rad1 h5 19. Rxd8+ Rxd8 20. Kf2 Ne5
21. Nxe5 fxe5 22. c4 Rd3 23. Rb1 Rb3 24. Bd2 Bd7 25. Ke2 Bf6 26. Nc2 Be6 27.
Na3 c6 28. Kd1 b5 29. axb5 cxb5 30. Kc2 bxc4 31. Ra1 h4 32. h3 Rd3 33. Nb1 Kb7
34. Ra3 Bd7 35. Nc3 Bc8 36. Ra5 Kb6 37. Ra1 g5 38. Nd1 Be6 39. Nf2 Rd6 40. Ng4
Bg7 41. Ne3 Bf6 42. Ra3 Rd4 43. Nd1 Rd7 44. Nc3 Be7 45. Kd1 Rd3 46. Ke2 Rd7 47.
Be3 Rd3 48. Kf2 Kb7 49. Ra1 Kb6 50. Ke2 Rd7 51. Rd1 Rxd1 52. Kxd1 Kc6 53. Kc2
Bd8 54. Nb1 Kb5 55. Na3+ Kc6 56. Bd2 Bf6 57. Ba5 Be7 58. Kc3 Bf6 59. Nc2 Kb5
60. Bc7 Kc6 61. Bb8 Kb7 62. Bd6 Kc6 63. Bf8 Bd8 64. Ne3 Ba5+ 65. Kc2 Bd8 66.
Nd1 Bf6 67. Nc3 Bd8 68. Kd2 Bf6 69. Nd1 Bd8 70. Bg7 Kd6 71. Ne3 Ba5+ 72. Kc2
Bd8 73. Kd1 a5 74. Kd2 a4 75. Kc2 Ba5 76. Bf6 c3 77. bxc3 a3 78. c4 Bd7 79. Kb3
Bd2 80. Nf5+ Ke6 81. Be7 Ba4+ 82. Kxa3 Bd1 83. Bxc5 Be2 84. Be3 Ba5 85. Bxg5
Bxc4 86. Kb2 Bb6 87. Be3 Bd8 88. Bf2 Bf1 89. Ne3 Bb5 90. Kc3 Ba5+ 91. Kb3 Be2
92. Kc2 Bd8 93. Kd2 Bb5 94. Bg1 Ba5+ 95. Kd1 Bb6 96. Kd2 Ba5+ 97. Kc1 Bd8 98.
Kd1 Bb6 99. Ke1 Ba5+ 100. Kf2 Bb6 101. g4 Bd4 102. Kg2 Be2 103. Bf2 Bxe3 104.
Bxe3 Kf6 105. Kf2 Bd1 106. Bd2 Bc2 107. Ba5 Ke7 108. Kg2 Ba4 109. Be1 Ke6 110.
Bxh4 Be8 111. Be1 Bg6 112. h4 Be8 113. Bc3 Bg6 114. h5 Be8 115. Kg3 1-0

