[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.13"]
[Round "9"]
[White "Akkerman, Erwin"]
[Black "Goedbloed, Piet"]
[Result "1-0"]
[ECO "D87"]
[PlyCount "49"]
[EventDate "1974.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 0-0 10. 0-0 Qc7 11. Qc2 Na5 12. Bb3 c4 13. Ba4 a6 14. Qd2 Rd8 15. Rac1 b5 16. Bc2 Bb7 17. Bh6 Bh8 18. f4 e6 19. f5 exf5 20. exf5 Qc6 21. Rf2 b4 22. fxg6 hxg6 23. cxb4 c3 24. Qf4 f5 25. bxa5 1-0

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.12"]
[Round "8"]
[White "Greben, Kees"]
[Black "Akkerman, Erwin"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "87"]
[EventDate "1974.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bf4 Bb4 5. e3 0-0 6. Bd3 Nbd7 7. Nf3 dxc4 8. Bxc4 c5 9. 0-0 cxd4 10. exd4 Nb6 11. Bb3 Nbd5 12. Nxd5 Nxd5 13. Bg3 b6 14. Rc1 Ba6 15. Bc4 Bxc4 16. Rxc4 Rc8 17. Qb3 Rxc4 18. Qxc4 Qc8 19. Rc1 Ne7 20. a3 Bxa3 21. bxa3 Qb7 22. h3 Rc8 23. Qf1 f6 24. Qd1 Nd5 25. Kh2 Qa6 26. Rxc8+ Qxc8 27. Qa4 a6 28. Qb3 Qc6 29. Nd2 b5 30. Nf1 Qb6 31. Qc2 Qxd4 32. Qc8+ Kf7 33. Qd7+ Kg6 34. Qxe6 a5 35. Qe8+ Kh6 36. Qxb5 a4 37. Ne3 Nxe3 38. fxe3 Qxe3 39. Qxa4 g5 40. Qb4 f5 41. Qf8+ Kg6 42. Qg8+ Kh6 43. Bd6 Qa7 44. Qe6+ 1-0

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.11"]
[Round "7"]
[White "Akkerman, Erwin"]
[Black "Van der Sterren, Paul"]
[Result "0-1"]
[ECO "A59"]
[PlyCount "122"]
[EventDate "1974.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4 Bxf1 8. Kxf1 g6 9. h3 Bg7 10. Nf3 0-0 11. Kg1 Na6 12. Kh2 Qa5 13. Re1 Nb4 14. a3 Qa6 15. Qe2 Rfb8 16. Qxa6 Rxa6 17. Re2 Nd3 18. Ne1 Nxc1 19. Rxc1 Nd7 20. Nd3 Rb3 21. f4 Bxc3 22. Rxc3 Raxa3 23. Rxb3 Rxb3 24. Nc1 Rb4 25. Kg3 Kf8 26. Kf3 Nb6 27. b3 Rd4 28. Ke3 f5 29. Rd2 Rxe4+ 30. Kf3 Re1 31. Ne2 Rb1 32. Rd3 Kf7 33. Ke3 e6 34. dxe6+ Kxe6 35. g4 d5 36. gxf5+ Kxf5 37. Ng3+ Ke6 38. Kf3 c4 39. Re3+ Kd7 40. bxc4 dxc4 41. Ke4 Rb3 42. Rxb3 cxb3 43. Kd3 Ke6 44. Kc3 Nd5+ 45. Kxb3 Nxf4 46. h4 h5 47. Kc3 Ng2 48. Kd4 Nxh4 49. Ke4 Nf5 50. Ne2 g5 51. Ng1 Nd6+ 52. Kf3 Kf5 53. Ne2 g4+ 54. Kg3 Kg5 55. Ng1 h4+ 56. Kh2 Nf5 57. Ne2 h3 58. Ng1 Kh4 59. Ne2 g3+ 60. Kh1 Kg4 61. Ng1 Nd4 0-1

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.10"]
[Round "6"]
[White "Nijmeijer, Henk"]
[Black "Akkerman, Erwin"]
[Result "0-1"]
[ECO "B12"]
[PlyCount "89"]
[EventDate "1974.04.05"]
[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 c6 2. d4 d5 3. e5 Bf5 4. Ne2 Nd7 5. h4 h6 6. Nf4 e6 7. Be3 a6 8. Nd2 c5 9. c4 cxd4 10. Bxd4 dxc4 11. Bxc4 Bb4 12. a3 Bxd2+ 13. Qxd2 Ne7 14. Bc3 0-0 15. Ba2 Nc6 16. Qe3 Qb6 17. Qxb6 Nxb6 18. Rg1 Na4 19. g4 Nxc3 20. bxc3 Bh7 21. g5 Nxe5 22. Rg3 hxg5 23. hxg5 Bf5 24. Ke2 Rac8 25. g6 Rfd8 26. gxf7+ Kxf7 27. Bb1 Bg4+ 28. Kf1 Rd1+ 29. Kg2 Kf6 30. c4 Bf5 31. Nh5+ Ke7 32. Rxg7+ Nf7 33. Bxf5 Rxa1 34. Bg6 Rf8 35. Be4 b6 36. Rg3 Nd6 37. Bc6 Ra2 38. Rg7+ Rf7 39. Rg8 Raxf2+ 40. Kg3 Nxc4 41. Re8+ Kd6 42. Be4 Nxa3 43. Ra8 a5 44. Ra6 Nc4 45. Bd3 0-1

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.09"]
[Round "5"]
[White "Akkerman, Erwin"]
[Black "Van der Wees, Aad Jan"]
[Result "1-0"]
[ECO "E11"]
[PlyCount "101"]
[EventDate "1974.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 d5 7. Nc3 b6 8. cxd5 exd5 9. e3 Bf5 10. Bd3 Bxd3 11. Qxd3 0-0 12. Rc1 a5 13. 0-0 Na6 14. Rc2 Qd7 15. Ne5 Qe6 16. Nb5 c5 17. b3 Rfc8 18. Rfc1 Ne8 19. Nf3 Nf6 20. Nd2 Qe7 21. f3 a4 22. b4 c4 23. Qe2 Qd7 24. Nc3 Re8 25. e4 dxe4 26. Ndxe4 Qxd4+ 27. Kf1 Nxe4 28. fxe4 Re6 29. g3 Nc7 30. Rd1 Qf6+ 31. Kg2 b5 32. Rd7 Re7 33. Qd2 Rxd7 34. Qxd7 Qd8 35. Rd2 Qxd7 36. Rxd7 Rc8 37. Kf2 Kf8 38. Ke3 Ke8 39. Rd6 Rb8 40. Kd4 Rd8 41. Kc5 Rxd6 42. Kxd6 Kd8 43. Kc6 f6 44. Kd6 h6 45. g4 g6 46. h3 g5 47. Ne2 Ne8+ 48. Ke6 Kc7 49. Nc3 Kc6 50. Ke7 Nd6 51. Kxf6 1-0

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.08"]
[Round "4"]
[White "Akkerman, Erwin"]
[Black "Waagmeester, Wouter F"]
[Result "1/2-1/2"]
[ECO "E93"]
[PlyCount "65"]
[EventDate "1974.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. d5 Nbd7 8. Bg5 h6 9. Be3 Ng4 10. h3 Nxe3 11. fxe3 f5 12. exf5 gxf5 13. Qd2 a5 14. 0-0-0 Nc5 15. h4 Qe7 16. h5 Bf6 17. Rdg1 e4 18. Nd4 Bg5 19. g3 Bd7 20. Kb1 Rae8 21. Bf1 Nd3 22. Nd1 Qe5 23. Nc2 a4 24. Bxd3 exd3 25. Qxd3 Qe4 26. Qxe4 fxe4 27. g4 Rf3 28. Nd4 Rxe3 29. Nxe3 Bxe3 30. Nf5 Bxg1 31. Rxg1 Kh7 32. Kc1 Bxf5 33. gxf5 1/2-1/2

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.07"]
[Round "3"]
[White "Kemperman, Hans"]
[Black "Akkerman, Erwin"]
[Result "0-1"]
[ECO "B19"]
[PlyCount "40"]
[EventDate "1974.04.05"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nf6 8. Ne5 Bh7 9. Bc4 e6 10. Qe2 Nd5 11. c3 Nd7 12. f4 Be7 13. h5 Nxe5 14. fxe5 Bg5 15. 0-0 Bxc1 16. Raxc1 0-0 17. Bd3 Bxd3 18. Qxd3 Qg5 19. Rce1 Rad8 20. Qe2 Qxg3 0-1

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.06"]
[Round "2"]
[White "De Jong, Tom"]
[Black "Akkerman, Erwin"]
[Result "1-0"]
[ECO "C73"]
[PlyCount "99"]
[EventDate "1974.04.05"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 exd4 7. Qxd4 d5 8. 0-0 Be6 9. Ng5 h6 10. Nxe6 fxe6 11. exd5 Qxd5 12. Qa4 Qb5 13. Qe4 Ne7 14. Qxe6 Qd5 15. Qe2 g6 16. Nc3 Qf7 17. Be3 Bg7 18. Bc5 Bf6 19. Rad1 0-0 20. Rd7 Rfe8 21. Qd2 Qc4 22. Bxe7 Rxe7 23. Rxe7 Bxe7 24. Qxh6 Qe6 25. Qe3 Qxe3 26. fxe3 Rb8 27. b3 Bg5 28. Rf3 Re8 29. Kf2 Kg7 30. Ke2 Bf6 31. Nd1 a5 32. Rf4 Be5 33. Ra4 Bxh2 34. Rxa5 Rb8 35. a4 Bd6 36. Nb2 Rh8 37. Ra7 Kf6 38. a5 Rh2 39. Kf3 g5 40. a6 g4+ 41. Kf2 g3+ 42. Kf3 Rh1 43. Ra8 Rf1+ 44. Kg4 Rf2 45. a7 Rxg2 46. Re8 Rh2 47. a8Q g2 48. Qd8+ Kf7 49. Qd7+ Be7 50. Qxe7+ 1-0

[Event "NED U20-ch"]
[Site "Rotterdam"]
[Date "1974.04.05"]
[Round "1"]
[White "Akkerman, Erwin"]
[Black "De Vos, Bart"]
[Result "0-1"]
[ECO "E94"]
[PlyCount "68"]
[EventDate "1974.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nbd7 7. 0-0 e5 8. d5 Nc5 9. Bg5 a5 10. a3 a4 11. Nd2 h6 12. Bxf6 Bxf6 13. b4 axb3 14. Nxb3 b6 15. Nxc5 bxc5 16. Qc2 Bg7 17. a4 f5 18. Bd3 f4 19. f3 g5 20. Rab1 Kh8 21. Kh1 h5 22. Rb5 g4 23. Rg1 Qh4 24. fxg4 hxg4 25. g3 fxg3 26. Rxg3 Bh6 27. Ne2 Bd7 28. Rb7 Rf2 29. Rg2 Rxg2 30. Kxg2 Qh3+ 31. Kf2 Rf8+ 32. Nf4 Rxf4+ 33. Ke1 g3 34. Rb2 Rf2 0-1

