[Event "Hoogovens 27th"]
[Site "Beverwijk"]
[Date "1965.01.06"]
[Round "1"]
[White "Johannessen, Svein"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]

1. d4 e6 2. g3 c5 3. Nf3 Nf6 4. Bg2 b5 5. Ne5 d5 6. dxc5 Bxc5 7. Nd3 Be7 8. Nd2 Bb7 9. a4 b4 10. a5 O-O 11. O-O Nc6 12. a6 Bc8 13. c4 bxc3 14. bxc3 Rb8 15. Nf3 Rb6 16. Be3 Rxa6 17. Rxa6 Bxa6 18. Qa4 Qc8 19. Ra1 Bc4 20. Nd2 Bxd3 21. exd3 Ne5 22. Qc2 a6 23. h3 Rd8 24. d4 Ng6 25. Bf1 Rd6 26. c4 dxc4 27. Nxc4 Rc6 28. Qe2 Nd5 29. Na5 Rc2 30. Qxa6 Qc3 31. Nc4 h5 32. Qa5 Qb3 33. Nd2 Qb4 34. Qa8+ Kh7 35. Rb1 Rb2 36. Rxb2 Qxb2 37. Nc4 Qc3 38. Qe8 f5 39. Ne5 Nxe5 40. Qxh5+ Kg8 41. Qe8+ Kh7 42. Qh5+ 1/2-1/2