[Event "Olympiad-19 Preliminaries A"]
[Site "Siegen"]
[Date "1970.09.12"]
[Round "8"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Malagon, Alberto"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 Nbd7 6. Bg5 c6 7. Qd2 a6 8. Rd1 Qc7 9. Rc1
Qa5 10. a3 O-O 11. h4 Re8 12. g4 Nf8 13. h5 Ne6 14. Be3 Qd8 15. hxg6 fxg6 16. Qh2 Nf8 17.
Rd1 N6d7 18. g5 e5 19. d5 Qe7 20. Qd2 c5 21. Nh3 Qf7 22. Kf2 Nb6 23. Qe2 Bd7 24. b3 Rac8
25. Kg3 Na8 26. Rb1 Rb8 27. b4 b6 28. Qd2 Qe7 29. Nf2 Rec8 30. Rb3 a5 31. Be2 a4 32. Rb2
Qd8 33. b5 Rb7 34. Nxa4 Ra7 35. Bd1 Rcc7 36. Ra2 Rcb7 37. Nb2 Nc7 38. a4 Ne8 39. Nbd3 Ra5
40. Qe1 Bc8 41. Ng4 Qe7 42. Rah2 Raa7 43. Rh4 Bxg4 44. Rxg4 Bh8 45. Rgh4 Ng7 46. Kg2 Nh5
47. Bd2 Bg7 48. Qg1 Qe8 49. Qh2 Rf7 50. Qh3 Qe7 51. Qg4 Qe8 52. R1h2 Qe7 53. Kh1 Qe8 54.
Bc1 Qe7 55. Ra2 Qd8 56. Rhh2 Qc7 57. Ra3 Qd8 58. Rha2 Ra8 59. Bd2 Rfa7 60. Be2 Qc7 61. Bf1
Qd8 62. Bh3 Rf7 63. a5 Nf4 64. Nxf4 exf4 65. axb6 Rxa3 66. Rxa3 Be5 67. b7 Qb6 68. Qc8
Qxb7 69. Qxb7 Rxb7 70. Ra8 Kf7 71. Bc8 Re7 72. b6 Nd7 73. b7 1-0