[Event "Olympiad-19 Final E"]
[Site "Siegen"]
[Date "1970.09.23"]
[Round "9"]
[White "Caldero, Ricardo"]
[Black "Vilhelm, Thorstein"]
[Result "1/2-1/2"]
1. Nf3 Nf6 2. d4 d6 3. c4 g6 4. Nc3 Bg7 5. e4 O-O 6. Be2 Nbd7 7. O-O c5 8. d5 Ng4 9. Qc2 Nb6 10. b3 Ne5 11. Nxe5 Bxe5 12. Bh6 Bg7 13. Bxg7 Kxg7 14. f4 f6 15. f5 Nd7 16. a4 a5 17. Qd2 Ne5 18. Nd1 g5 19. Nf2 Qe8 20. Nd3 Nxd3 21. Qxd3 h5 22. Rf3 Rh8 23. Qd1 Qf7 24. Rh3 h4 25. Rc1 Bd7 26. Rcc3 Rag8 27. Qe1 b6 28. Rhd3 Kf8 29. h3 Qg7 30. Bg4 Be8 31. Qe2 1/2-1/2