[Event "Olympiad-19 Preliminaries B"]
[Site "Siegen"]
[Date "1970.09.13"]
[Round "9"]
[White "Ulvestad, Olaf"]
[Black "Yanofsky, Daniel Abraham"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 Ne4 7. Qc2 Nxc3 8. Qxc3 O-O 9. O-O Be4 10. Rd1 d6 11. b3 Nd7 12. Bb2 Bf6 13. Qe3 Bb7 14. Rac1 Qe7 15. Rc2 c5 16. dxc5 dxc5 17. Rcd2 Rad8 18. Bxf6 Nxf6 19. Ne5 Bxg2 20. Kxg2 1/2-1/2