[Event "Interzonal-09b"]
[Site "Petropolis"]
[Date "1973.08.17"]
[Round "17"]
[White "Hug, Werner"]
[Black "Kagan, Shimon"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 c6 7. O-O a6 8. a3 b5 9. h3 bxc4 10. Bxc4 d5 11. Bd3 dxe4 12. Nxe4 Nd5 13. Re1 Qb6 14. Qc2 Nd7 15. Nc3 e6 16. Na4 Qc7 17. Bd2 a5 18. Rac1 Ba6 19. Be4 N7f6 20. Ne5 Rfc8 21. Nc5 Nxe4 22. Qxe4 Bb5 23. a4 Ba6 24. Rc2 Rd8 25. Rec1 Bc8 26. Ncd3 Ne7 27. Bf4 Qb6 28. Nc5 Rd5 29. Be3 Qd8 30. Ncd3 Bb7 31. Nc5 Bc8 32. Ncd3 Bb7 33. Nc5 Bc8 34. g4 f5 35. Qf4 Bxe5 36. dxe5 Rd1+ 37. Kh2 Rxc1 38. Rxc1 Nd5 39. Qh6 fxg4 40. hxg4 Qf8 41. Kg3 Qxh6 42. Bxh6 Rb8 43. b3 Rb4 44. Bd2 1/2-1/2