[Event "Olympiad-15 Preliminaries A"]
[Site "Varna"]
[Date "1962.09.21"]
[Round "6"]
[White "Johannessen, Svein"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d6 5. e4 O-O 6. h3 Nc6 7. Bb5 Bd7 8. O-O h6 9. Be3 e5 10. dxe5 Nxe5 11. Bxd7 Nexd7 12. Bd4 Re8 13. Re1 c6 14. Nc4 Re6 15. e5 dxe5 16. Ncxe5 Nxe5 17. Bxe5 Qe7 18. Qd4 b6 19. Rad1 Re8 20. Qa4 Qb7 21. c4 Nh5 22. Bxg7 Rxe1+ 23. Rxe1 Rxe1+ 24. Nxe1 Kxg7 25. Qd1 c5 26. Qe2 Qc7 27. Nd3 Qd6 28. Qe5+ Qxe5 29. Nxe5 Nf4 30. Nc6 Nd3 31. b3 a5 32. Kf1 Nc1 33. Ke1 Nxa2 34. Kd2 Kf6 35. Na7 Ke5 36. Nc8 Nb4 37. Nxb6 Kd4 38. Nc8 Nd3 39. Ne7 Nxf2 40. Nc6+ Ke4 41. Nxa5 Nd3 1/2-1/2