[Event "NM"]
[Site "Oslo"]
[Date "1980.??.??"]
[Round "?"]
[White "Heiberg, Thomas"]
[Black "Stigar, Petter"]
[Result "1-0"]
[ECO "D37"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. e3 O-O 6. b3 b6 7. Bb2 Bb7 8. Rc1 Nbd7 9. Bd3 c5 10. O-O Rc8 11. Qe2 dxc4 12. Bxc4 cxd4 13. Nxd4 Ne5 14. Ba6 Rb8 15. Rfd1 Ned7 16. Bxb7 Rxb7 17. Nc6 Qe8 18. Nb5 Nc5 19. Nbxa7 Qa8 20. Nxe7+ Rxe7 21. Nb5 Qxa2 22. Ra1 Qxb3 23. Ra3 Qb4 24. Rd4 1-0