[Event "Groningen op2"]
[Site "Groningen"]
[Date "1989.??.??"]
[Round "1"]
[White "Koefoed, B."]
[Black "Valens, Vincent"]
[Result "0-1"]
[ECO "C80"]
[PlyCount "86"]
[EventDate "1989.??.??"]
[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 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nc5 7. Bxc6 dxc6 8. Nxe5 Be6 9. d4 Nd7 10. Be3 Bd6 11. Nd3 0-0 12. Nd2 Qf6 13. h3 Bf5 14. Nf4 Bxc2 15. Qxc2 Bxf4 16. Bxf4 Qxf4 17. Re4 Qf5 18. Qb3 Nb6 19. Rae1 Qd5 20. a3 Rad8 21. Qxd5 Nxd5 22. Nf3 f6 23. Kf1 Kf7 24. g3 Rfe8 25. Rxe8 Rxe8 26. Rxe8 Kxe8 27. Ke2 Ke7 28. Kd3 Ke6 29. b4 Ne7 30. Kc4 Nf5 31. Nd2 Nd6+ 32. Kc5 Kd7 33. d5 b6+ 34. Kd4 Nb5+ 35. Kd3 cxd5 36. a4 Nd6 37. Kd4 Ke6 38. g4 Nb7 39. f4 Kd6 40. b5 axb5 41. axb5 Nc5 42. h4 Ne6+ 43. Ke3 Kc5 0-1

[Event "Groningen op2"]
[Site "Groningen"]
[Date "1989.??.??"]
[Round "6"]
[White "Polee, JRB"]
[Black "Koefoed, B."]
[Result "1-0"]
[ECO "B00"]
[PlyCount "45"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 b5 2. e4 a6 3. d4 e6 4. Bd3 Bb7 5. 0-0 c5 6. c3 Qc7 7. Re1 Nf6 8. Bg5 Be7 9. Nbd2 d6 10. h3 Nbd7 11. a4 c4 12. Bc2 h6 13. Bf4 0-0 14. g4 Nh7 15. Kh2 e5 16. Bg3 Ng5 17. Nh4 Ne6 18. Nf5 Bg5 19. h4 Bf4 20. d5 Bxg3+ 21. fxg3 Nec5 22. g5 hxg5 23. Ne7+ 1-0

