[Event "Reykjavik International-04"]
[Site "Reykjavik"]
[Date "1970.01.18"]
[Round "4"]
[White "Sigurjonsson, Bjorn"]
[Black "Vizantiadis, Lazaros"]
[Result "0-1"]

1. f4 d5 2. Nf3 g6 3. e3 Bg7 4. d4 Nh6 5. Bd3 O-O 6. O-O c5 7. c3 Qb6 8. Kh1 Nd7 9. Nbd2 Nf6 10. Qe2 Bf5 11. Ne5 Rad8 12. Bxf5 Nxf5 13. g4 Nd6 14. Ndf3 Nfe4 15. Kg2 a5 16. Qc2 Qc7 17. Bd2 Qc8 18. h3 c4 19. Nh2 f6 20. Nef3 b5 21. a4 Qb7 22. axb5 Qxb5 23. Ra3 Ra8 24. Rfa1 Ra7 25. Be1 Rb8 26. R1a2 h5 27. Nd2 hxg4 28. Nxg4 Kf7 29. Nxe4 Nxe4 30. Nf2 Nd6 31. Qe2 e6 32. Ra4 Bf8 33. Kf1 f5 34. h4 Be7 35. h5 Rh8 36. hxg6+ Kxg6 37. Qf3 Kf7 38. Ke2 Nc8 39. Nh3 Nb6 40. R4a3 Bxa3 41. Ng5+ Kf6 42. bxa3 Rh2+ 43. Bf2 Qb1 44. Rd2 Na4 45. Qg3 Nxc3+ 46. Kf3 Qh1+ 0-1