[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.13"]
[Round "7"]
[White "Slaa, Joop"]
[Black "Maas, Carlo"]
[Result "1-0"]
[ECO "E87"]
[PlyCount "35"]
[EventDate "1974.04.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nbd7 7. Bd3 e5 8. d5 a6 9. Nge2 Ne8 10. h4 Ndf6 11. Qd2 c6 12. g4 Nd7 13. h5 Qf6 14. Ng1 Nc5 15. Bg5 Nxd3+ 16. Kf1 Bh6 17. Bxh6 Ng7 18. Bg5 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.12"]
[Round "6"]
[White "Van der Wiel, John"]
[Black "Slaa, Joop"]
[Result "1/2-1/2"]
[ECO "B52"]
[PlyCount "43"]
[EventDate "1974.04.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. c3 g6 7. d4 cxd4 8. cxd4 Bg7 9. Nc3 Nf6 10. Re1 0-0 11. h3 Rfd8 12. Bf4 Rac8 13. Qd2 Ne8 14. Rad1 Na5 15. Nd5 Nc4 16. Qe2 e6 17. Ne3 Nxe3 18. Bxe3 d5 19. e5 Rc7 20. Rc1 Rdc8 21. Qd2 Qa4 22. b3 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.11"]
[Round "5"]
[White "Slaa, Joop"]
[Black "Sinke, Han"]
[Result "1/2-1/2"]
[ECO "D32"]
[PlyCount "36"]
[EventDate "1974.04.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 exd5 6. Bg5 Be6 7. dxc5 Bxc5 8. e3 a6 9. Be2 Nc6 10. 0-0 Qd7 11. Rc1 Be7 12. Na4 Bd8 13. a3 Rb8 14. Nc5 Qc8 15. Qa4 0-0 16. Nxb7 Qxb7 17. Bf4 Bd7 18. Bxb8 Nxb8 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.10"]
[Round "4"]
[White "De Wit, Albert"]
[Black "Slaa, Joop"]
[Result "1/2-1/2"]
[ECO "B78"]
[PlyCount "36"]
[EventDate "1974.04.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 d6 8. Qd2 0-0 9. 0-0-0 Bd7 10. f3 Ne5 11. Bb3 Rc8 12. h4 a5 13. Kb1 a4 14. Nxa4 Bxa4 15. Bxa4 Nc4 16. Qe2 d5 17. Nb3 e6 18. c3 Qe7 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.09"]
[Round "2"]
[White "Saarloos, Leendert"]
[Black "Slaa, Joop"]
[Result "1/2-1/2"]
[ECO "A70"]
[PlyCount "54"]
[EventDate "1974.04.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. e4 Bg7 8. Bd3 0-0 9. 0-0 a6 10. a4 Nbd7 11. a5 Re8 12. Bf4 Qc7 13. Re1 Nh5 14. Be3 c4 15. Bc2 Nc5 16. Bd4 Bd7 17. Bxg7 Nxg7 18. Qd4 b5 19. axb6 Qxb6 20. Reb1 Bb5 21. Nd2 Nd7 22. Qxb6 Nxb6 23. Ba4 Nxa4 24. Nxa4 Rab8 25. Rc1 Rec8 26. Nc3 Rb6 27. Nxb5 axb5 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.09"]
[Round "3"]
[White "Slaa, Joop"]
[Black "Hendrikse, Ad"]
[Result "1/2-1/2"]
[ECO "A51"]
[PlyCount "36"]
[EventDate "1974.04.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. Nd2 Bb4 5. Ngf3 Nc6 6. g3 Qe7 7. Qc2 Nxd2 8. Bxd2 Bxd2+ 9. Qxd2 Nxe5 10. Nxe5 Qxe5 11. Bg2 0-0 12. 0-0 Rb8 13. Rac1 b6 14. Rc3 d6 15. Rd1 Bb7 16. Re3 Qf6 17. Bxb7 Rxb7 18. Qd5 Rbb8 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.08"]
[Round "1"]
[White "Slaa, Joop"]
[Black "Brus, Dick"]
[Result "1/2-1/2"]
[ECO "A89"]
[PlyCount "54"]
[EventDate "1974.04.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nc3 0-0 6. Nf3 d6 7. 0-0 Nc6 8. d5 Ne5 9. Nxe5 dxe5 10. e4 Rb8 11. a4 e6 12. f4 exf4 13. Rxf4 Qe7 14. exf5 exf5 15. Nb5 Ng4 16. d6 cxd6 17. Nxd6 Be5 18. Nxc8 Qc5+ 19. Kh1 Bxf4 20. Bd5+ Kh8 21. Bxf4 Rbxc8 22. Qxg4 Qxd5+ 23. cxd5 fxg4 24. d6 Rc2 25. Re1 Rcc8 26. d7 Rcd8 27. Re7 Kg8 1/2-1/2

