[Event "Olympiad-19 Preliminaries A"]
[Site "Siegen"]
[Date "1970.09.05"]
[Round "1"]
[White "Thomsen, Frode Helvig"]
[Black "Gonzales, Eliseo"]
[Result "0-1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. a3 a5 7. Be2 Ngxe5 8. O-O O-O 9. Nc3 d6 10. h3 Nxf3+ 11. Bxf3 Ne5 12. Be2 Be6 13. b3 f5 14. Bb2 f4 15. exf4 Rxf4 16. Nd5 Rxf2 17. Rxf2 Qh4 18. Bxe5 Bxf2+ 19. Kh1 dxe5 20. Bg4 Bxg4 21. Qxg4 Qxg4 22. hxg4 c6 23. Nc3 Bd4 24. Rc1 Bxc3 25. Rxc3 e4 26. Re3 Re8 27. Kh2 Kf7 28. Kg3 Kf6 29. Kf4 g5+ 30. Kg3 Ke5 0-1