[Event "Interzonal-05"]
[Site "Stockholm"]
[Date "1962.01.31"]
[Round "4"]
[White "German, Eugenio Maciel"]
[Black "Bertok, Mario"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. f4 Nfd7 8. Bf3 Be7 9. O-O Qc7 10. a4 Nf6 11. f5 e5 12. Nde2 b6 13. Ng3 Bb7 14. Nh5 Nxh5 15. Bxh5 Nd7 16. Nd5 Bxd5 17. Qxd5 Qc5+ 18. Qxc5 dxc5 19. Be3 Nf6 20. Bf3 O-O 21. Kf2 Rfd8 22. g4 h6 23. h4 Nd7 24. g5 hxg5 25. hxg5 c4 26. Rh1 Bc5 27. Rh2 f6 28. g6 b5 29. Be2 Bxe3+ 30. Kxe3 Nc5 31. axb5 axb5 32. Rah1 Kf8 33. Rh8+ Ke7 34. Rxd8 Rxd8 35. Ra1 Kd6 36. Ra7 Rd7 37. Ra8 Kc6 38. Rc8+ Kb6 39. Rb8+ Rb7 40. Rf8 Rd7 1/2-1/2