[Event "Tallinn"]
[Site "Tallinn"]
[Date "1975.03.06"]
[Round "13"]
[White "Hernandez Onna, Roman"]
[Black "Olafsson, Fridrik"]
[Result "1/2-1/2"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 O-O 5. Nf3 Re8 6. O-O e4 7. Nd4 Nc6 8. Nc2 Bxc3 9. dxc3 h6 10. Ne3 b6 11. Qc2 Bb7 12. Bd2 Ne5 13. Rad1 Qe7 14. h3 Qe6 15. b3 Nf3+ 16. Kh1 Qe5 17. Bc1 Qh5 18. Nd5 Nxd5 19. cxd5 Bxd5 20. Rxd5 Qxd5 21. Rd1 Qh5 22. exf3 exf3 23. Bf1 Re2 24. Qd3 Rxf2 25. Be3 Re2 26. Kg1 Re8 27. Bf2 Rxa2 28. Qxd7 1/2-1/2