[Event "NED open-ch 11"]
[Site "Dieren"]
[Date "1980.08.02"]
[Round "4"]
[White "Bor, Willem"]
[Black "Van Nieuwenhuitzen, Ad"]
[Result "1-0"]
[ECO "A24"]
[PlyCount "73"]
[EventDate "1980.07.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 d6 6. Nc3 e5 7. d3 c6 8. c5 Nd5 9. cxd6 Qxd6 10. Nd2 f5 11. Qb3 Be6 12. Nxd5 Bxd5 13. Bxd5+ cxd5 14. Qxb7 Nc6 15. Qb3 Nd4 16. Qd1 Rfc8 17. Rb1 Qa6 18. a3 e4 19. Nb3 exd3 20. exd3 Rab8 21. Nxd4 Bxd4 22. Qf3 Qe6 23. b4 Rc2 24. Qf4 Qb6 25. a4 Re8 26. a5 Qf6 27. Qf3 Ree2 28. Qxd5+ Kh8 29. Bh6 Re8 30. h4 Qe5 31. Qxe5+ Rxe5 32. Rbc1 Ree2 33. Rxc2 Rxc2 34. Rc1 Bxf2+ 35. Kg2 Rxc1 36. Bxc1 Be1 37. a6 1-0

[Event "NED open-ch 11"]
[Site "Dieren"]
[Date "1980.08.01"]
[Round "3"]
[White "Van Nieuwenhuitzen, Ad"]
[Black "Caessens, Rob"]
[Result "1/2-1/2"]
[ECO "E81"]
[PlyCount "80"]
[EventDate "1980.07.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 Nf6 4. e4 d6 5. f3 0-0 6. Be3 a6 7. Qd2 Nbd7 8. g4 c5 9. Nge2 Rb8 10. Ng3 cxd4 11. Bxd4 Ne5 12. Be2 Nc6 13. Be3 Qa5 14. h4 Rd8 15. h5 Nd7 16. hxg6 fxg6 17. Bh6 Bh8 18. Nf5 Nde5 19. Ne3 Nd4 20. Kf2 b5 21. Ned5 Nxe2 22. Kxe2 bxc4 23. Nxe7+ Kf7 24. Bg5 Nd3 25. Rxh7+ Bg7 26. Nc6 Qc5 27. Nxd8+ Kg8 28. Be3 Qc7 29. Rxg7+ Qxg7 30. Nd1 Bd7 31. Bg5 Qe5 32. Kf1 Qg3 33. Qe2 c3 34. Nxc3 Rxb2 35. Bd2 Ne5 36. Qg2 Qxg2+ 37. Kxg2 Rxd2+ 38. Kg3 Rd3 39. Nd5 Rxf3+ 40. Kg2 Rf8 1/2-1/2

