[Event "Groningen SO ON Mini op-D"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "1"]
[White "Koekoek, Maarten"]
[Black "Stellingwerf, Ruurd"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "35"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nc6 4. Bc4 h6 5. d4 Nxd4 6. Nxd4 exd4 7. Qxd4 Qf6 8. Be3 Be7 9. 0-0 Qxd4 10. Bxd4 Bf6 11. e5 Be7 12. exd6 Bxd6 13. Bxg7 Rh7 14. Re1+ Ne7 15. Bf6 h5 16. Nc3 Be6 17. Bd3 Rh6 18. Bg7 1-0

[Event "Groningen ABM op"]
[Site "Groningen"]
[Date "1999.??.??"]
[Round "?"]
[White "Wolfs, Marc"]
[Black "Stellingwerf, Ruurd"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "117"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 h6 4. Nc3 Nf6 5. d4 exd4 6. Qxd4 Nc6 7. Bb5 Bd7 8. Qd1 Be7 9. 0-0 0-0 10. Bf4 a6 11. Bd3 Nh5 12. Be3 Nf6 13. Qd2 Be6 14. Ne1 d5 15. exd5 Nxd5 16. Nxd5 Bxd5 17. Bxh6 Ne5 18. Bf4 Nxd3 19. Qxd3 c6 20. Nf3 Bxf3 21. Qxf3 Qd4 22. Qe3 Qxe3 23. fxe3 Rad8 24. Rad1 Rxd1 25. Rxd1 Rd8 26. Rd3 g6 27. Bc7 Rxd3 28. cxd3 Bf6 29. b3 Bg5 30. Kf2 Kf8 31. Kf3 Ke8 32. Bf4 Bf6 33. Ke4 Kd7 34. d4 Ke6 35. Kd3 b5 36. e4 Be7 37. g4 g5 38. Bc7 f6 39. Ba5 Bd6 40. h3 Be7 41. Kc3 Bd6 42. Bb4 Bc7 43. a4 Bb8 44. Bc5 Bc7 45. axb5 axb5 46. Ba3 Ba5+ 47. Bb4 Bc7 48. Kd3 Bb6 49. Bc3 Bc7 50. d5+ cxd5 51. exd5+ Kxd5 52. Bxf6 Bf4 53. h4 gxh4 54. Bxh4 Be5 55. g5 Kc5 56. g6 Kb4 57. Kc2 Ka3 58. Be7+ b4 59. Bf8 1-0

