[Event "Porz op 29th"]
[Site "Cologne"]
[Date "1993.??.??"]
[Round "4"]
[White "Nieuwenborg, Alwinvon"]
[Black "Tochtrop, Matthias"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2080"]
[BlackElo "1830"]
[PlyCount "79"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. d4 d6 4. Bg2 c6 5. 0-0 Nh6 6. c4 0-0 7. Nc3 f6 8. d5 Nf7 9. Qc2 a5 10. Rd1 Na6 11. a3 Nc5 12. Be3 Bf5 13. Qd2 Nb3 14. Qe1 Nxa1 15. Rxa1 Ne5 16. Nxe5 fxe5 17. dxc6 bxc6 18. Bxc6 Rc8 19. Bb5 Bd7 20. a4 e6 21. Bg5 Qc7 22. Qd2 Rf7 23. Ba6 Rcf8 24. Be3 Ra8 25. Bb5 Bc8 26. Ne4 Bf8 27. Rd1 Bb7 28. Nxd6 Rd8 29. c5 Rfd7 30. Bxd7 Rxd7 31. b4 Qc6 32. f3 axb4 33. Qxb4 Ba6 34. Qb3 Re7 35. Rd2 Bc8 36. Qb6 Qxa4 37. Nxc8 Rd7 38. Qxe6+ Rf7 39. Nd6 Qa1+ 40. Kf2 1-0

