[Event "Reggio Emilia-25 1982/83"]
[Site "Reggio Emilia"]
[Date "1982.12.29"]
[Round "3"]
[White "Bertok, Mario"]
[Black "Koch, Robert"]
[Result "1-0"]
[WhiteElo "2375"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Bd3 O-O 7. Nge2 Nbd7 8. Ng3 Ne8 9. h4 Ndf6 10. Nf5 Bxf5 11. exf5 b5 12. Nxb5 e4 13. Bc2 h5 14. Nc3 e3 15. Bxe3 Ng4 16. Bd2 Bf6 17. g3 Rb8 18. Rb1 Rb7 19. O-O Bd4 20. b3 g6 21. Ne2 Bf6 22. Nf4 Ng7 23. fxg6 Bd4 24. Kg2 f5 25. Ne2 Bf6 26. f3 Ne5 27. Nf4 Re8 28. Rf2 a5 29. Ne6 Rxe6 30. dxe6 Nxg6 31. Bh6 Bd4 32. Re2 Qf6 33. Bg5 Qf8 34. f4 Ne7 35. Qd3 Qc8 36. Qf3 Nxe6 37. Bxe7 Rxe7 38. Rbe1 1-0