[Event "Reykjavik International-04"]
[Site "Reykjavik"]
[Date "1970.01.18"]
[Round "4"]
[White "Olafsson, Fridrik"]
[Black "Thorsteinsson, Bjorn"]
[Result "1/2-1/2"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 g6 4. d4 exd4 5. Nd5 Bg7 6. Bg5 Nce7 7. Qd2 c6 8. Nxe7 Nxe7 9. Nxd4 h6 10. Bf4 d5 11. e3 O-O 12. Rd1 Nf5 13. Nxf5 Bxf5 14. cxd5 Qxd5 15. Qxd5 cxd5 16. Bd3 Bxd3 17. Rxd3 g5 18. Bg3 Bxb2 19. Rb3 Bg7 20. Rxb7 d4 21. Ke2 Rfc8 22. Bc7 Re8 23. Rhb1 dxe3 24. fxe3 Re6 25. Rb8+ Rxb8 26. Rxb8+ Kh7 27. a4 Be5 28. Bxe5 Rxe5 29. Rb5 Rxb5 30. axb5 Kg6 31. Kd3 Kf5 32. Kd4 Ke6 33. Kc5 Kd7 34. Kb4 f5 35. Ka5 Kd6 1/2-1/2