[Event "Zonal Halle"]
[Site "Halle/Saale"]
[Date "1963.??.??"]
[Round "?"]
[White "Portisch, Lajos"]
[Black "Johannsson, Ingi Randver"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nc6 7. O-O e5 8. d5 Ne7 9. e4 Ne8 10. b4 f5 11. Ng5 c6 12. dxc6 bxc6 13. c5 fxe4 14. cxd6 Nxd6 15. b5 Nef5 16. Ngxe4 Nd4 17. Ba3 Nxe4 18. Nxe4 Rf7 19. bxc6 Ba6 20. Nd6 Qa5 21. Bb2 Rf6 22. Bxd4 Bxf1 23. Qb3+ Kh8 24. Rxf1 Rxd6 25. Be3 Rc8 26. Qb7 Qc7 27. Bh3 Rxc6 28. Bxc8 Qxc8 29. Rb1 Bf8 30. Qxa7 Bd6 31. Bh6 Rc7 32. Rb8 Rc1+ 33. Kg2 1-0