[Event "Dortmunder Schachtage-10"]
[Site "Dortmund"]
[Date "1982.04.08"]
[Round "3"]
[White "Ostermeyer, Peter"]
[Black "Karlsson, Lars"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2500"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 c5 5. d5 Ba6 6. Qc2 exd5 7. cxd5 g6 8. Bf4 d6 9. Nc3 Bg7 10. Qa4+ Qd7 11. Bxd6 Qxa4 12. Nxa4 Nxd5 13. O-O-O Ne7 14. e4 Bxf1 15. Rhxf1 Nbc6 16. Nc3 Rd8 17. Nb5 Rd7 18. Bf4 Nc8 19. Nc7+ Kd8 20. Rxd7+ Kxd7 21. Rd1+ Ke7 22. Nd5+ Kf8 23. e5 h6 24. h4 Ke8 25. Kc2 Nd8 26. Bg3 Ne6 27. Nf6+ Bxf6 28. exf6 g5 29. Rd5 gxh4 30. Nxh4 Rg8 31. Nf5 b5 32. Bh4 Nb6 33. Rd1 Rg4 34. g3 Rc4+ 35. Kb1 Kf8 36. Nxh6 Rd4 37. Re1 Rd2 38. Kc1 Rxf2 39. Ng4 Rf5 40. Ne5 1/2-1/2