[Event "Interzonal-09b"]
[Site "Petropolis"]
[Date "1973.07.29"]
[Round "5"]
[White "Tan, Lian Ann"]
[Black "Hug, Werner"]
[Result "1/2-1/2"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Ne4 5. Bd3 Nxd2 6. Bxd2 c5 7. dxc5 Nd7 8. Nf3 Nxc5 9. O-O Be7 10. Be3 O-O 11. Bxc5 Bxc5 12. c3 Bd7 13. Qe2 Rc8 14. Rad1 f5 15. exf6 Qxf6 16. Rde1 Bd6 17. Ne5 Bxe5 18. Qxe5 Rce8 19. f4 Bc6 20. Re3 Rf7 21. Rh3 g6 22. Re3 Kg7 23. g3 Rd7 24. Rfe1 d4 25. cxd4 Rxd4 26. Be4 Qxe5 27. fxe5 Bxe4 28. Rxe4 Rd2 29. R4e2 Red8 30. Kf2 Rf8+ 31. Kg2 Rfd8 32. Kf2 h5 33. Rxd2 Rxd2+ 34. Re2 Rxe2+ 35. Kxe2 g5 36. Kf3 Kg6 37. g4 1/2-1/2