[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 "Maas, Carlo"]
[Black "Schutte, Jan"]
[Result "1/2-1/2"]
[ECO "D24"]
[PlyCount "127"]
[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 dxc4 3. Nf3 Nf6 4. Nc3 e6 5. a4 b6 6. e3 Bb7 7. Bxc4 c5 8. 0-0 Be7 9. Re1 0-0 10. dxc5 Bxc5 11. Nb5 Qxd1 12. Rxd1 Bxf3 13. gxf3 Nc6 14. Bd2 Ne5 15. Be2 Ng6 16. Rac1 Nd5 17. e4 Ndf4 18. Bf1 a5 19. Kh1 Bxf2 20. Rc2 Bc5 21. Rcc1 Rfd8 22. Be1 h6 23. b3 Ne5 24. Bg2 Ned3 25. Rb1 Nxe1 26. Rxe1 Rd2 27. Bf1 Rf2 28. Nc3 Bb4 29. Re3 Bc5 30. Ree1 Rd8 31. Rbd1 Rxd1 32. Rxd1 Rxf3 33. Rc1 Bb4 34. Ne2 Nxe2 35. Bxe2 Rxb3 36. Rc8+ Kh7 37. Rc7 Kg6 38. Bb5 f6 39. Be8+ Kh7 40. Rc6 e5 41. Rxb6 Re3 42. Bd7 Kg6 43. Bf5+ Kg5 44. Rb7 Ra3 45. Rxg7+ Kf4 46. Rg6 Rxa4 47. Rxf6 Kg5 48. Rg6+ Kh5 49. Re6 Bc3 50. Bg6+ Kg5 51. Bf5 Ra1+ 52. Kg2 Bd4 53. Kg3 Ra3+ 54. Kg2 a4 55. Rg6+ Kh5 56. Ra6 Be3 57. Bd7 Bf4 58. Rxa4 Rxa4 59. Bxa4 Kg5 60. Bd7 h5 61. Bf5 h4 62. Kh3 Bd2 63. Kg2 Kf4 64. h3 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.11"]
[Round "5"]
[White "Hendrikse, Ad"]
[Black "Maas, Carlo"]
[Result "1/2-1/2"]
[ECO "B43"]
[PlyCount "78"]
[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 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Qc7 7. Bd3 Be7 8. Qd2 Nc6 9. Nb3 b5 10. Bg5 Bb7 11. f4 d6 12. Qe3 0-0 13. Qh3 g6 14. Qf3 Nb4 15. Rc1 Nxd3+ 16. cxd3 Qd8 17. a3 Rb8 18. Nd2 Re8 19. b4 Rc8 20. 0-0 Rc7 21. g4 Qc8 22. Ne2 Nd7 23. h4 Bxg5 24. hxg5 Rf8 25. Qg3 Qd8 26. Rxc7 Qxc7 27. Rc1 Qd8 28. Kf2 Re8 29. Qh4 Nf8 30. Nf3 Qd7 31. Ng3 Rc8 32. Qh1 Rxc1 33. Qxc1 Qc6 34. Qxc6 Bxc6 35. f5 Bd7 36. Ke3 Bc8 37. d4 Nd7 38. Nd2 Nb6 39. Kf4 Kf8 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.10"]
[Round "4"]
[White "Maas, Carlo"]
[Black "Van Erven, Spencer"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "120"]
[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. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. 0-0 Be7 5. d3 c6 6. Nbd2 0-0 7. Re1 Nbd7 8. e4 dxe4 9. Nxe4 b5 10. Bg5 Bb7 11. Nxf6+ Nxf6 12. Ne5 Rc8 13. Qe2 h6 14. Bxf6 Bxf6 15. Bh3 c5 16. Bg2 Bxg2 17. Kxg2 Qd5+ 18. Kg1 Rfd8 19. Qe4 Qd4 20. Qxd4 Rxd4 21. a3 Rd5 22. f4 g5 23. Rab1 gxf4 24. gxf4 c4 25. dxc4 bxc4 26. Rbd1 Rb5 27. Rb1 Bxe5 28. Rxe5 Rxe5 29. fxe5 Rc5 30. Re1 Rb5 31. Re4 Rc5 32. b4 cxb3 33. cxb3 Kh7 34. Kf2 a5 35. b4 axb4 36. axb4 Rb5 37. Ke3 Kg6 38. Kd4 Rd5+ 39. Kc4 Kf5 40. Re1 Rd2 41. Rb1 Kxe5 42. b5 Rc2+ 43. Kd3 Rc7 44. Rb4 Kd5 45. Rd4+ Kc5 46. Rc4+ Kb6 47. Rxc7 Kxc7 48. Ke4 Kb6 49. Ke5 f5 50. Kf4 Kxb5 51. Ke5 Kc5 52. h3 Kc6 53. h4 Kd7 54. h5 Ke7 55. Kf4 Kf6 56. Ke3 Kg5 57. Kf3 Kxh5 58. Kg3 e5 59. Kf3 e4+ 60. Ke3 Kg4 0-1

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.09"]
[Round "3"]
[White "Van der Poel, Henk"]
[Black "Maas, Carlo"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "77"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 c6 7. 0-0 Bg4 8. Be3 Qb6 9. Qd2 Nbd7 10. e5 Ne8 11. Rab1 d5 12. b4 e6 13. h3 Bxf3 14. Rxf3 Qd8 15. b5 Rb8 16. Rff1 Nb6 17. bxc6 bxc6 18. Qe2 Nc7 19. Rb3 Qe7 20. Rfb1 Nd7 21. Bc1 Rxb3 22. Rxb3 Rb8 23. Ba3 Qd8 24. Na4 Rxb3 25. axb3 Ne8 26. Ba6 Qc7 27. Qd3 f6 28. Nc5 Nxc5 29. Bxc5 Bh6 30. Qf3 Bg7 31. b4 Qf7 32. Bc8 f5 33. Qa3 Nc7 34. Qxa7 Nb5 35. Qa8 Nc7 36. Qxc6 Kh8 37. Bd7 Na6 38. Qxa6 Qxd7 39. Qa8+ 1-0

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.09"]
[Round "2"]
[White "Westra, Bart"]
[Black "Maas, Carlo"]
[Result "1/2-1/2"]
[ECO "B08"]
[PlyCount "59"]
[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 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Bg7 5. Nf3 0-0 6. Bc4 c6 7. Bd3 Bg4 8. h3 Bxf3 9. Qxf3 Nbd7 10. 0-0-0 b5 11. a3 a5 12. Na2 Re8 13. c3 e5 14. Rhe1 exd4 15. cxd4 Qc7 16. Kd2 b4 17. Ke2 bxa3 18. bxa3 Rab8 19. Rb1 c5 20. Kf1 cxd4 21. Bxd4 Rxb1 22. Rxb1 Nxe4 23. Bxe4 Bxd4 24. Bd5 Ne5 25. Qb3 Qa7 26. Qa4 Re7 27. Qc2 Rc7 28. Qd2 Rc5 29. Be4 d5 30. Bc2 1/2-1/2

[Event "NED-ch U16"]
[Site "Nijmegen"]
[Date "1974.04.08"]
[Round "1"]
[White "Maas, Carlo"]
[Black "Saarloos, Leendert"]
[Result "0-1"]
[ECO "E75"]
[PlyCount "126"]
[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 d6 4. Nc3 g6 5. e4 Bg7 6. Nf3 0-0 7. Be2 e6 8. Bg5 Re8 9. dxe6 Bxe6 10. 0-0 a6 11. Rc1 Qc7 12. Qd2 Qc6 13. Bxf6 Bxf6 14. Nd5 Bg7 15. Rfe1 Nd7 16. Bd1 b5 17. cxb5 axb5 18. Bb3 c4 19. Bd1 Rxa2 20. Nb4 Rxb2 21. Nxc6 Rxd2 22. Nxd2 Nc5 23. Bc2 Bd7 24. Na7 Ra8 25. Nxb5 Bxb5 26. Rb1 Bc3 27. Rxb5 Bxd2 28. Rd1 c3 29. e5 Ne6 30. exd6 Nd4 31. Be4 Nxb5 32. Bxa8 c2 33. Rc1 Bxc1 34. Be4 Nxd6 35. Bxc2 Kg7 36. Kf1 g5 37. Ke2 Bf4 38. Kf3 Be5 39. Bd3 h5 40. h3 Kf8 41. Be2 Ke7 42. Ke3 h4 43. Bg4 f6 44. Ke2 Kd8 45. Ke3 Kc7 46. Bf3 Kb6 47. Kd3 Kc5 48. Ke2 Kd4 49. Kd2 Bf4+ 50. Ke2 Kc3 51. Bg4 Nc4 52. Bh5 Ne5 53. Bf3 Nxf3 54. Kxf3 Kd3 55. g3 hxg3 56. fxg3 Bxg3 57. Kxg3 Ke3 58. h4 gxh4+ 59. Kxh4 f5 60. Kh3 f4 61. Kh2 Ke2 62. Kg2 f3+ 63. Kh1 f2 0-1

