[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "7"]
[White "De Jong, Tom"]
[Black "Van Gijzen, J."]
[Result "1-0"]
[ECO "B27"]
[PlyCount "61"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. c3 Qxc5 6. Be3 Qc7 7. Bd4 Bxd4 8. cxd4 d6 9. Nc3 Nf6 10. Be2 0-0 11. 0-0 Bd7 12. e5 dxe5 13. dxe5 Ne8 14. Nd5 Qa5 15. b4 Qd8 16. Qd2 e6 17. Qh6 f6 18. Nf4 Qe7 19. Bc4 Ng7 20. Nd3 Nf5 21. Qd2 Nc6 22. Nc5 Bc8 23. Rfe1 b6 24. Nd3 Bb7 25. Nf4 Ng7 26. exf6 Rxf6 27. Nd5 Qf7 28. Ng5 Rxf2 29. Qxf2 Qxf2+ 30. Kxf2 Rf8+ 31. Kg1 1-0

[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "4"]
[White "Kuijpers, Charles F"]
[Black "Van Gijzen, J."]
[Result "1/2-1/2"]
[ECO "D94"]
[PlyCount "51"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 g6 3. Nf3 Nc6 4. e3 Bg7 5. Be2 Nf6 6. 0-0 d5 7. d4 dxc4 8. Bxc4 cxd4 9. exd4 0-0 10. h3 e6 11. Bg5 h6 12. Bh4 Qb6 13. Na4 Qb4 14. Qb3 Qxb3 15. Bxb3 g5 16. Bg3 Ne4 17. Be5 Nxe5 18. dxe5 b5 19. Bc2 Bb7 20. Rae1 bxa4 21. Bxe4 Rab8 22. Bxb7 Rxb7 23. Re4 Rxb2 24. Rxa4 Ra8 25. Rd1 a5 26. Rc1 1/2-1/2

[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "8"]
[White "Pelgrom, Marcel"]
[Black "Van Gijzen, J."]
[Result "1/2-1/2"]
[ECO "B27"]
[PlyCount "49"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. c3 Qxc5 6. Be3 Qc7 7. Bd4 Nf6 8. e5 Ng4 9. e6 f6 10. Bb5 Nc6 11. exd7+ Bxd7 12. 0-0 a6 13. Be2 0-0-0 14. h3 Nh6 15. Qb3 Nxd4 16. cxd4 Qd6 17. Nbd2 Kb8 18. Bc4 f5 19. Rfe1 Bf6 20. Ne5 Be8 21. Ndf3 g5 22. d5 g4 23. Nc6+ Bxc6 24. dxc6 Qxc6 25. Re6 1/2-1/2

[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "2"]
[White "Van Dijk, Bram"]
[Black "Van Gijzen, J."]
[Result "0-1"]
[ECO "B20"]
[PlyCount "54"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. a3 e5 4. Bc4 Bc5 5. axb4 Bxb4 6. Nf3 Nc6 7. c3 Ba5 8. Qb3 Qf6 9. 0-0 Nge7 10. d4 Bc7 11. Bg5 Qg6 12. d5 Nd8 13. Na3 a6 14. Nb5 Bb8 15. d6 Bxd6 16. Bxe7 Kxe7 17. Nh4 Qxe4 18. Nxd6 Kxd6 19. Nf3 f6 20. Qb6+ Qc6 21. Qb4+ Kc7 22. Bb5 Qb6 23. Qc4+ Nc6 24. Bxc6 Qxc6 25. Qf7 b5 26. Qxg7 Bb7 27. Qh6 Rhg8 0-1

[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "3"]
[White "Van Gijzen, J."]
[Black "Bartels, Hans A"]
[Result "0-1"]
[ECO "A37"]
[PlyCount "120"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. Nf3 e6 6. e3 Nge7 7. 0-0 0-0 8. d4 cxd4 9. exd4 d5 10. cxd5 exd5 11. h3 Nf5 12. Ne2 Qb6 13. Kh2 Be6 14. g4 Nfxd4 15. Nfxd4 Bxd4 16. Nxd4 Qxd4 17. Qxd4 Nxd4 18. Be3 Nc2 19. Rac1 Nxe3 20. fxe3 Rac8 21. b3 b6 22. Rfd1 Rfd8 23. Kg3 Kg7 24. Kf4 Rc5 25. Rxc5 bxc5 26. Ke5 Re8 27. Kf4 c4 28. Bxd5 cxb3 29. Bxb3 Bxb3 30. axb3 g5+ 31. Kf3 Rb8 32. Rd3 Rb5 33. Rc3 a5 34. e4 Kf6 35. Ke3 Ke5 36. Rd3 Rc5 37. Kf3 f6 38. Ke3 Rc1 39. Rd5+ Ke6 40. Kd4 Rd1+ 41. Kc4 Re1 42. Kd4 Ra1 43. Kc3 a4 44. Kb2 Re1 45. Rd8 axb3 46. Rh8 Re2+ 47. Kb1 Rxe4 48. Rxh7 Re2 49. Rb7 Re3 50. Rh7 Re2 51. Rb7 Re3 52. Rh7 Ke5 53. Rh6 Re2 54. Kc1 Rf2 55. Kb1 Kd4 56. Rh7 Ke3 57. Rb7 Kf4 58. Rxb3 Rf3 59. Rb4+ Kg3 60. Kc2 Kxh3 0-1

[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "1"]
[White "Van Gijzen, J."]
[Black "Merbis, Max"]
[Result "0-1"]
[ECO "A26"]
[PlyCount "86"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 f5 6. d3 Nf6 7. Rb1 d6 8. b4 h6 9. e3 Be6 10. Nd2 Qd7 11. b5 Nd8 12. 0-0 0-0 13. Nb3 e4 14. Nd4 Bf7 15. Qc2 c5 16. Nb3 Rc8 17. Nd2 exd3 18. Qxd3 Ng4 19. Bb2 Be6 20. Nd5 Nf6 21. Rfd1 Nxd5 22. Bxd5 Nf7 23. Nb3 Rfd8 24. Na5 Rc7 25. Bxg7 Kxg7 26. Qc3+ Kh7 27. Qf6 Re8 28. Qc3 Qe7 29. b6 axb6 30. Rxb6 Bxd5 31. Rxd5 Ng5 32. Rbxd6 Ne4 33. Qd3 Nxd6 34. Rxd6 Qf7 35. Nb3 Ree7 36. Rd5 b6 37. Qc3 Rcd7 38. Rxd7 Rxd7 39. Qc2 Qe6 40. a4 Qe4 41. Qxe4 fxe4 42. Kf1 Rd3 43. Nc1 Rd1+ 0-1

[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "9"]
[White "Van Gijzen, J."]
[Black "Pliester, Leon"]
[Result "1/2-1/2"]
[ECO "A40"]
[PlyCount "39"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 b6 3. d4 c5 4. d5 exd5 5. Nxd5 Nf6 6. Bg5 Be7 7. Nxe7 Qxe7 8. Nf3 0-0 9. g3 Bb7 10. Bg2 h6 11. Bf4 d5 12. cxd5 Bxd5 13. 0-0 Nc6 14. Re1 Rad8 15. Qc1 Rfe8 16. Bd2 Ne4 17. Bc3 Nxc3 18. Qxc3 Qe6 19. b3 Ne5 20. Nxe5 1/2-1/2

[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "6"]
[White "Van Gijzen, J."]
[Black "Uylings, Peter"]
[Result "0-1"]
[ECO "A25"]
[PlyCount "48"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 Nc6 2. g3 e5 3. Nc3 Bb4 4. Bg2 Nf6 5. a3 Bxc3 6. bxc3 d5 7. cxd5 Nxd5 8. c4 Nf6 9. d3 0-0 10. Bb2 Re8 11. Qc2 Bg4 12. h3 Bh5 13. Rd1 Qe7 14. Qc3 Rad8 15. g4 Bg6 16. Bxc6 bxc6 17. e4 h5 18. f3 Nd7 19. Kf2 Nc5 20. Qc2 Qd6 21. d4 Bxe4 22. fxe4 exd4 23. Rxd4 Qf4+ 24. Nf3 Rxd4 0-1

[Event "NED U20-ch"]
[Site "Oostvoorne"]
[Date "1972.??.??"]
[Round "5"]
[White "Van Gijzen, J."]
[Black "Van der Sterren, Paul"]
[Result "0-1"]
[ECO "A24"]
[PlyCount "41"]
[EventDate "1972.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e3 d6 6. Nge2 e5 7. h3 c6 8. 0-0 Be6 9. b3 d5 10. d3 Na6 11. a3 Nc7 12. Qc2 Qd7 13. Kh2 Nh5 14. Bb2 f5 15. Rad1 f4 16. exf4 exf4 17. Ng1 fxg3+ 18. fxg3 Nxg3 19. Rf3 Rxf3 20. Nxf3 Qd6 21. c5 0-1

