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

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Bd3 Nc6 8. Nf3 Bc5 9. O-O Ng4 10. g3 d6 11. a3 O-O 12. Bf4 Nge5 13. b4 Nxf3+ 14. Qxf3 Bd4 15. Rac1 Ne5 16. Qd1 Bxc3 17. Rxc3 Nxd3 18. Qxd3 e5 19. Be3 Bh3 20. Rd1 Rad8 21. Qe2 Qc6 22. f3 Be6 23. Qc2 f5 24. a4 fxe4 25. b5 Qc7 26. fxe4 Bh3 27. Qe2 Rf7 28. Rcc1 Qc8 29. Bb6 Rdf8 30. Rxd6 Qg4 0-1