[Event "Reykjavik International-01"]
[Site "Reykjavik"]
[Date "1964.01.20"]
[Round "6"]
[White "Gudmundsson, Arinbjorn"]
[Black "Kristinsson, Jon"]
[Result "1-0"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 b6 6. a3 Bxc3+ 7. Nxc3 Bb7 8. d5 exd5 9. cxd5 d6 10. Be2 Qe7 11. O-O a5 12. f3 Nbd7 13. e4 Ne5 14. Nb5 Rad8 15. Bg5 c6 16. dxc6 Nxc6 17. Nc3 Qe6 18. Nd5 Ne7 19. Nxe7+ Qxe7 20. Qd4 Qe5 21. Bxf6 gxf6 22. Rfd1 Rc8 23. Bc4 Rc7 24. Bb3 Qc5 25. h3 b5 26. a4 b4 27. Kh1 f5 28. exf5 Qxf5 29. Qxd6 Rfc8 30. Rd4 Kh8 31. Rf4 Qg6 32. Qe5+ Qg7 33. Re1 Rg8 34. Rxf7 Rxf7 35. Bxf7 Qxe5 36. Rxe5 Rf8 37. Re7 Bc6 38. b3 Rd8 39. Rc7 Rd1+ 40. Kh2 Bd5 41. Bxd5 Rxd5 42. Ra7 1-0