[Event "Rostock 15th"]
[Site "Rostock GDR"]
[Date "1989.08.??"]
[EventDate "1989.08.00"]
[Round "2"]
[Result "0-1"]
[White "Rene Stern"]
[Black "Andrei Kovalev"]
[ECO "E60"]
[WhiteElo "2335"]
[BlackElo "2505"]
[PlyCount "82"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c6 7. Nc3 a6 8. h3 b5  9. b3 Nfd7 10. cxb5 axb5 11. Bb2 b4 12. Ne4 f5 13. Neg5 Nf6 14. Ne1 h6 15. Ngf3  Be6 16. Qc2 Qe8 17. Nd3 Nd5 18. Nd2 Na6 19. e3 Nac7 20. Rfc1 Bd7 21. Qc4 Rb8  22. Nf4 Qf7 23. Nxd5 Nxd5 24. a3 g5 25. axb4 f4 26. gxf4 gxf4 27. e4 f3 28.  Nxf3 Rxb4 29. Qf1 Nf4 30. Rc3 Rxb3 31. Rxb3 Qxb3 32. Bc1 Nxg2 33. Ra3 Qc2 34.  Kxg2 Qxe4 35. Qd3 Qd5 36. Kg3 Bf5 37. Qb3 Be4 38. Nd2 Qxb3+ 39. Rxb3 Bd5 40.  Rb4 Rf6 41. f3 Re6 0-1