[Event "Groningen SO ON Mini op-B"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "3"]
[White "Boer, Walter"]
[Black "Bos, Ivan"]
[Result "1/2-1/2"]
[ECO "E01"]
[PlyCount "42"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 c5 4. Bg2 Nc6 5. 0-0 e6 6. c4 cxd4 7. Nxd4 Bc5 8. Nb3 Be7 9. cxd5 Nxd5 10. e4 Nb6 11. Qxd8+ Bxd8 12. a3 Na4 13. N1d2 e5 14. Nc4 Be6 15. Nbd2 Be7 16. b3 Nc3 17. Bb2 Ne2+ 18. Kh1 Ned4 19. Nxe5 0-0 20. Nxc6 Nxc6 21. Rac1 Rfd8 1/2-1/2

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "4"]
[White "Bos, Ivan"]
[Black "Molenaar, Joseph"]
[Result "1-0"]
[ECO "A43"]
[PlyCount "115"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 e6 2. c4 c5 3. d5 d6 4. Nc3 exd5 5. cxd5 Bf5 6. e4 Bg6 7. f4 f6 8. Nf3 Bh5 9. Bc4 a6 10. a4 Nd7 11. a5 f5 12. 0-0 fxe4 13. Nxe4 Be7 14. Re1 Qc7 15. Neg5 Nf8 16. Qd3 Nh6 17. Bd2 Bxf3 18. Qxf3 0-0-0 19. Qh3+ Kb8 20. Ne4 Ng6 21. Rab1 Rhf8 22. g3 Bf6 23. Nxf6 Rxf6 24. Bc3 Rff8 25. Re6 Rde8 26. Rbe1 Rxe6 27. dxe6 Qe7 28. Qg2 Re8 29. Qd5 Ng4 30. Qd3 Nf6 31. f5 Nf8 32. Rd1 Rd8 33. Be5 Kc7 34. Bf4 g6 35. Bg5 h6 36. Bxh6 Ng4 37. Bf4 Ne5 38. Bxe5 dxe5 39. Qxd8+ Qxd8 40. Rxd8 Kxd8 41. f6 Nh7 42. f7 Ke7 43. Kf2 Nf6 44. Kf3 g5 45. h3 Kf8 46. Ke3 Ke7 47. Bb3 Kf8 48. Ba2 Ke7 49. h4 g4 50. Bc4 Kf8 51. Bd3 Ke7 52. Be4 Nh5 53. Bxb7 Nxg3 54. Bxa6 Nf5+ 55. Kf2 e4 56. Be2 e3+ 57. Kg2 Nd4 58. Bxg4 1-0

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "6"]
[White "Bos, Ivan"]
[Black "Poffers, Rieke"]
[Result "1-0"]
[ECO "E97"]
[PlyCount "69"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 Nd7 10. Nd2 f5 11. Ba3 Nf6 12. f3 f4 13. c5 g5 14. Nc4 Ne8 15. b5 Ng6 16. Qb3 Rf7 17. b6 axb6 18. cxb6 cxb6 19. Rab1 h5 20. Nxb6 Rb8 21. Rfc1 Bf8 22. Bb2 Nf6 23. a4 g4 24. a5 g3 25. Ba3 Nh7 26. Bf1 Nh4 27. Nb5 gxh2+ 28. Kh1 Rg7 29. Rxc8 Rxc8 30. Nxc8 Qxc8 31. Nxd6 Bxd6 32. Bxd6 Ng5 33. Qd3 Qa8 34. Bxe5 Rg6 35. Bxf4 1-0

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "8"]
[White "Bos, Ivan"]
[Black "Sewkaransing, Vikash"]
[Result "1-0"]
[ECO "D83"]
[PlyCount "179"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 0-0 6. Rc1 c5 7. dxc5 Be6 8. Nf3 Qa5 9. Be2 Ne4 10. Qc2 Na6 11. 0-0 Nxc3 12. bxc3 Nxc5 13. Nd4 Rac8 14. Rfd1 Rfd8 15. Bf3 Bxd4 16. cxd4 Bf5 17. Qe2 Nd3 18. Rxd3 Bxd3 19. Qxd3 dxc4 20. Qc2 Qa6 21. a4 Rd7 22. Be2 e6 23. Bxc4 Qa5 24. Qb3 a6 25. Rb1 Rc6 26. h3 b5 27. axb5 axb5 28. Qxb5 Qxb5 29. Bxb5 Rb7 30. Bxc6 Rxb1+ 31. Kh2 f6 32. h4 Kf7 33. Bf3 Rb2 34. Kg3 Rb5 35. Be2 Rb2 36. Bf3 Rb5 37. Kg4 Rb2 38. Bg3 Rb5 39. Bc6 Ra5 40. Kf3 Ra6 41. Bb5 Rb6 42. Be2 Rb2 43. Bd6 Kg8 44. Bf4 Kf7 45. Bh6 Ke7 46. Bd3 Rb3 47. Bc2 Rb2 48. Be4 Kf7 49. d5 f5 50. dxe6+ Kxe6 51. Bd3 Rb7 52. Bc4+ Kf6 53. Bd5 Rb5 54. Bc4 Rb6 55. Bg8 Rb7 56. Bd5 Rb5 57. Ba2 Rb2 58. Bc4 Rb4 59. Bg5+ Kg7 60. Be2 h6 61. Bf4 Rb7 62. Bd3 Rb3 63. Bc2 Rb7 64. h5 Ra7 65. hxg6 Kxg6 66. g4 Ra2 67. Bxf5+ Kg7 68. Be5+ Kf7 69. Kg3 Ra5 70. Bc7 Ra2 71. Bf4 Kg7 72. Bd7 Ra7 73. Be8 Ra8 74. Bc6 Ra6 75. Bf3 Rb6 76. g5 hxg5 77. Bxg5 Kg6 78. Bf4 Ra6 79. Be4+ Kf6 80. Kg4 Ra2 81. f3 Rg2+ 82. Bg3 Re2 83. Kf4 Ra2 84. Bd5 Ra4+ 85. e4 Ra1 86. e5+ Kg6 87. Be4+ Kf7 88. Kf5 Rg1 89. Bh4 Rh1 90. e6+ 1-0

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "2"]
[White "Bos, Ivan"]
[Black "Wunnink, Michael"]
[Result "0-1"]
[ECO "A67"]
[BlackElo "2045"]
[PlyCount "42"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. Nf3 a6 10. Bxd7+ Nxd7 11. a4 0-0 12. 0-0 Rb8 13. Qd3 Re8 14. Re1 Qc7 15. Kh1 c4 16. Qf1 b5 17. axb5 axb5 18. Re2 b4 19. Nd1 Nc5 20. Nf2 c3 21. Qd1 Ba6 0-1

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "7"]
[White "Hofman, Marnix"]
[Black "Bos, Ivan"]
[Result "1/2-1/2"]
[ECO "B26"]
[PlyCount "38"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. d3 Bg7 5. Bg2 d6 6. Be3 e6 7. Qd2 Rb8 8. Nge2 Nge7 9. Bh6 0-0 10. Bxg7 Kxg7 11. 0-0 b5 12. f4 Qb6 13. Kh1 Bb7 14. g4 f5 15. gxf5 exf5 16. Rae1 Rbe8 17. exf5 Nxf5 18. Nd5 Qd8 19. Ng3 Ncd4 1/2-1/2

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "9"]
[White "Kalisvaart, Peter"]
[Black "Bos, Ivan"]
[Result "1/2-1/2"]
[ECO "B14"]
[PlyCount "22"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 e6 5. Nc3 Nf6 6. Bg5 Be7 7. Nf3 0-0 8. Bd3 dxc4 9. Bxc4 Nc6 10. 0-0 b6 11. Rc1 Bb7 1/2-1/2

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "5"]
[White "Paalman, Henk Jan"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "D49"]
[PlyCount "63"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Bb4+ 12. Bd2 Bxd2+ 13. Qxd2 axb5 14. exf6 Qxf6 15. Bxb5 e5 16. Qb4 Ba6 17. 0-0 Bxb5 18. Qxb5 Qa6 19. Qd5 Qa5 20. Qe4 0-0 21. Rfe1 f6 22. Nh4 Rfb8 23. Nf5 Nf8 24. Ne7+ Kh8 25. Nc6 Qb6 26. Nxb8 Rxb8 27. a4 Qa5 28. Reb1 Ne6 29. b4 Rxb4 30. Rxb4 Qxb4 31. a5 Qb8 32. a6 1-0

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "1"]
[White "Van Aken, Koen"]
[Black "Bos, Ivan"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "66"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bc4 e6 4. d3 Nf6 5. Bg5 d6 6. Nf3 Be7 7. 0-0 0-0 8. Re1 a6 9. a4 Rb8 10. e5 Ne8 11. Bxe7 Qxe7 12. exd6 Nxd6 13. Bd5 Na5 14. Qe2 Qc7 15. Be4 f5 16. Bd5 exd5 17. Nxd5 Qd8 18. Ne7+ Kh8 19. Ne5 Rf6 20. Qh5 Qe8 21. Qxe8+ Nxe8 22. Re3 g6 23. Nd5 Rf8 24. Rae1 Nf6 25. Nxf6 Rxf6 26. Nc4 Nxc4 27. dxc4 Bd7 28. Re7 Rd6 29. h3 Rd8 30. Rf7 Be6 31. Re7 Bxc4 32. b3 Bg8 33. Kh2 R6d7 0-1

[Event "NED-ch U20"]
[Site "Hengelo"]
[Date "1997.??.??"]
[Round "3"]
[White "Van der Kuyl, Alexander"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "69"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nf3 b6 7. Bd3 Bb4+ 8. Nbd2 Bb7 9. 0-0 d6 10. Nc4 dxe5 11. dxe5 Nc6 12. Qe2 Rc8 13. Rd1 Qc7 14. Bd2 Be7 15. Qe4 a6 16. Qg4 g6 17. Rac1 Qb8 18. Bg5 Bc5 19. Qg3 b5 20. Ncd2 Nd4 21. Ne4 Nf5 22. Qh3 Be7 23. Rxc8+ Bxc8 24. Bxe7 Kxe7 25. g4 Nf4 26. Qf1 Ng7 27. Qe1 Nd5 28. Rc1 Rd8 29. Nf6 Bb7 30. Be4 Nxf6 31. Qb4+ Kd7 32. exf6 Nf5 33. gxf5 Qd6 34. Qxd6+ Kxd6 35. Bxb7 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "2"]
[White "Berendsen, Richard"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "57"]
[EventDate "1996.??.??"]
[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 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. 0-0 Be7 8. f4 0-0 9. Kh1 Nc6 10. Nxc6 bxc6 11. e5 Nd5 12. Ne4 dxe5 13. fxe5 Qc7 14. c4 Qxe5 15. cxd5 Qxe4 16. Bf3 Qe5 17. Re1 Qc7 18. dxc6 Bd6 19. Qa4 Bxh2 20. Rd1 Bg3 21. b3 Rb8 22. Ba3 Rd8 23. Rxd8+ Qxd8 24. c7 Bxc7 25. Rd1 Bd7 26. Rxd7 Qc8 27. Bb2 Rb5 28. Qd4 f6 29. Rxg7+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "9"]
[White "Bos, Ivan"]
[Black "Luynenburg, Rogier"]
[Result "1/2-1/2"]
[ECO "D48"]
[PlyCount "45"]
[EventDate "1996.??.??"]
[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 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. 0-0 a6 10. Qe2 c5 11. dxc5 Bxc5 12. e4 Qb8 13. Rd1 0-0 14. Bg5 Qa7 15. Bh4 Rac8 16. e5 Bxf3 17. gxf3 Nh5 18. Bxh7+ Kxh7 19. Qd3+ Kg8 20. Qxd7 Qa8 21. Qd3 Nf4 22. Qe4 Ng6 23. Bg3 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "3"]
[White "Bos, Ivan"]
[Black "Offringa, Johan"]
[Result "1/2-1/2"]
[ECO "E12"]
[PlyCount "57"]
[EventDate "1996.??.??"]
[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 e6 2. c4 Nf6 3. Nc3 b6 4. Bg5 Be7 5. Nf3 Bb7 6. e3 0-0 7. Bd3 d6 8. 0-0 Nbd7 9. Nd2 c5 10. Qc2 h6 11. Bh4 cxd4 12. exd4 Rc8 13. Rfe1 d5 14. b3 Nb8 15. Ne2 dxc4 16. bxc4 b5 17. Qb2 bxc4 18. Nxc4 Be4 19. Ne5 Bxd3 20. Nxd3 Nc6 21. Ne5 Rb8 22. Qc2 Nxe5 23. dxe5 Nd5 24. Bxe7 Qxe7 25. Nd4 Rfc8 26. Qd2 Qb4 27. Qd3 Rc3 28. Qe4 Qa4 29. Nb3 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "4"]
[White "Bos, Ivan"]
[Black "Span, Paul"]
[Result "1/2-1/2"]
[ECO "E31"]
[PlyCount "103"]
[EventDate "1996.??.??"]
[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. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6 7. e3 Bxc3+ 8. bxc3 e5 9. Qc2 Nbd7 10. Nf3 0-0 11. Bd3 Re8 12. Nd2 Qe7 13. 0-0 g5 14. Bg3 Nh5 15. Rab1 Ndf6 16. f3 Nxg3 17. hxg3 Kg7 18. Rfe1 h5 19. Kf2 Rh8 20. Rh1 Rh6 21. a3 Qc7 22. Bf5 Bd7 23. Rh2 Rah8 24. Rbh1 Qc8 25. Bd3 Kf8 26. Qb1 Ke7 27. Qc2 Kd8 28. Qb1 Kc7 29. Qc2 h4 30. Qb1 hxg3+ 31. Kxg3 Rxh2 32. Rxh2 Rxh2 33. Kxh2 Qh8+ 34. Kg1 g4 35. Qe1 gxf3 36. gxf3 Qh6 37. Qf2 Qg5+ 38. Kf1 Bf5 39. Bxf5 Qxf5 40. e4 Qg5 41. Ke2 Nh5 42. Qe3 Nf4+ 43. Kd1 Qg2 44. Kc2 Qh1 45. Kb2 Qd1 46. Nb1 Nd3+ 47. Ka1 a6 48. Qd2 Qxd2 49. Nxd2 b5 50. Ka2 Ne1 51. cxb5 axb5 52. Kb3 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "8"]
[White "Bos, Ivan"]
[Black "Utama, Ivan"]
[Result "0-1"]
[ECO "E30"]
[PlyCount "106"]
[EventDate "1996.??.??"]
[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. Nc3 Bb4 4. Bg5 h6 5. Bh4 g5 6. Bg3 Ne4 7. Qc2 Bxc3+ 8. bxc3 d5 9. e3 b6 10. Nf3 Bb7 11. Bd3 Nxg3 12. hxg3 Nd7 13. cxd5 exd5 14. c4 c5 15. 0-0 Rc8 16. Rfe1 0-0 17. Qe2 dxc4 18. Bxc4 Bxf3 19. gxf3 cxd4 20. exd4 Nf6 21. Qd3 Kg7 22. Kg2 Qd6 23. Rad1 Rfd8 24. Re2 Rc7 25. Red2 Nd5 26. Bxd5 Qxd5 27. Qe4 Rcd7 28. Qe2 Qe6 29. Qe4 Rd5 30. Rd3 R8d7 31. Qe3 Qf6 32. Qd2 a5 33. Qb2 b5 34. a3 h5 35. Rb3 g4 36. f4 Qc6 37. Kg1 f6 38. Rc3 Qb6 39. Rcd3 Qd6 40. Qb3 Qb6 41. Qb2 b4 42. axb4 axb4 43. Qb3 Rxd4 44. Rxd4 Rxd4 45. Rxd4 Qxd4 46. Qe6 Qa1+ 47. Kg2 Qa8+ 48. Kg1 Qb7 49. Qb3 Qe4 50. Qa4 Qd4 51. Qb5 h4 52. gxh4 g3 53. Qb7+ Kh6 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "6"]
[White "Bos, Ivan"]
[Black "Van Ginkel, John"]
[Result "1-0"]
[ECO "A52"]
[PlyCount "75"]
[EventDate "1996.??.??"]
[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 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Nc3 Ngxe5 7. Be2 0-0 8. 0-0 d6 9. b3 Bf5 10. Bb2 Re8 11. Nd4 Bg6 12. f4 Nd7 13. Nxc6 bxc6 14. f5 Rxe3 15. Kh1 Bxf5 16. Rxf5 Re6 17. Rf1 Qh4 18. Qe1 Qg5 19. Rf3 Rae8 20. Qf1 Nf6 21. Bc1 Qe5 22. Bf4 Qh5 23. Re3 Qf5 24. Bd3 Qh5 25. Rxe6 fxe6 26. Qf3 Qf7 27. Bg3 d5 28. Na4 Bb6 29. c5 Ba5 30. Qe2 d4 31. Be5 Qd7 32. a3 Bc3 33. Nxc3 dxc3 34. Bxc3 Qd5 35. b4 Qg5 36. Bc4 Ng4 37. Bxe6+ Kh8 38. Qxg4 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "5"]
[White "De Groot, Tim"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "D37"]
[PlyCount "67"]
[EventDate "1996.??.??"]
[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 c6 2. Nc3 d5 3. d4 Nf6 4. Bf4 e6 5. e3 Nbd7 6. Nf3 Bb4 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 b5 10. Bb3 Nd5 11. Bxd5 cxd5 12. 0-0 Ba6 13. Re1 Nb6 14. Qc2 Rc8 15. Rac1 0-0 16. Ng5 g6 17. e4 Qe7 18. e5 Rc4 19. Qd3 Kg7 20. Re3 Qxa3 21. Rh3 Rh8 22. Nxe6+ fxe6 23. Bg5 Nd7 24. Qf3 h5 25. Bf6+ Kg8 26. Re1 Rh7 27. Rg3 Nf8 28. Qd3 Rcc7 29. Rxg6+ Nxg6 30. Qxg6+ Kf8 31. Bg5 Bc8 32. Bh6+ Rcg7 33. Qxh7 Qe7 34. Qh8+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "1"]
[White "Oldenhuis, Lance"]
[Black "Bos, Ivan"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "70"]
[EventDate "1996.??.??"]
[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. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. f4 Nge7 8. Nge2 0-0 9. g4 f5 10. h3 Nd4 11. Ng3 Rb8 12. Qd2 b5 13. Nd1 b4 14. 0-0 Bb7 15. c3 bxc3 16. bxc3 Ndc6 17. Bf3 Qc7 18. h4 Na5 19. Rc1 fxe4 20. Nxe4 Nd5 21. g5 Nc6 22. h5 Nce7 23. hxg6 hxg6 24. Ndf2 Nxe3 25. Qxe3 Nd5 26. Qd2 Nxf4 27. Bg4 d5 28. Nh3 Nxh3+ 29. Bxh3 dxe4 30. Bxe6+ Kh8 31. Qe3 Rf3 32. Rxf3 exf3 33. Qf2 Qf4 34. Rc2 Qxg5+ 35. Kf1 Qg2+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "1996.??.??"]
[Round "7"]
[White "Van Den Boomen, Ronny"]
[Black "Bos, Ivan"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "96"]
[EventDate "1996.??.??"]
[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. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nc3 Nxc3 7. bxc3 b6 8. Be3 Bb7 9. f4 Qh4+ 10. g3 Qd8 11. Nf3 Qc7 12. Rc1 Ba3 13. Rc2 Bc6 14. Bc1 Be7 15. Qd3 Qb7 16. Rf2 Be4 17. Qe3 a6 18. Bg2 b5 19. 0-0 0-0 20. Rb2 Qc6 21. Bd2 Ra7 22. Ne1 Bxg2 23. Nxg2 d5 24. f5 exf5 25. Rxf5 Qe6 26. Rf1 Nd7 27. Qf3 Nb6 28. Ne3 Bg5 29. Rc2 Bxe3+ 30. Bxe3 Rc7 31. Rfc1 Rfc8 32. Bf2 h6 33. Be1 Rc4 34. Qd3 R8c6 35. Kg2 Qc8 36. a3 Na4 37. Qf3 Nb6 38. Rf2 Qd7 39. Bd2 Ra4 40. Ra1 Nc4 41. Bc1 Na5 42. Rb2 Nb7 43. Rf2 Nd8 44. Bb2 Ne6 45. Bc1 Rac4 46. Rc2 Nxd4 47. cxd4 Rxc2+ 48. Kg1 Rxc1+ 0-1

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "9"]
[White "Bos, Ivan"]
[Black "Al, Alexander"]
[Result "0-1"]
[ECO "A85"]
[PlyCount "88"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. e3 Bg7 5. Nf3 0-0 6. Be2 d6 7. 0-0 Nc6 8. d5 Ne5 9. Nd4 c5 10. dxc6 Nxc6 11. Re1 a6 12. Bf3 Ne5 13. Be2 Nf7 14. b4 e5 15. Nb3 Be6 16. Bb2 Rc8 17. Nd5 Bxd5 18. cxd5 Ne4 19. Bf1 Qb6 20. a3 f4 21. Qd3 Nxf2 22. Kxf2 fxe3+ 23. Qxe3 Rc2+ 24. Re2 Nh6+ 25. Kg1 Qxe3+ 26. Rxe3 Rxb2 27. Na5 Nf5 28. Re2 Rxe2 29. Bxe2 b6 30. Nb3 b5 31. Rc1 e4 32. Rc6 Nd4 33. Nxd4 Bxd4+ 34. Kh1 Rf2 35. Rc2 Kf7 36. h3 Kf6 37. Kh2 Ke5 38. Kg3 Kxd5 39. Bd1 Rxc2 40. Bxc2 Bb2 41. a4 Bc3 42. axb5 axb5 43. Kf4 Bd2+ 44. Kg4 Bxb4 0-1

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "5"]
[White "Bos, Ivan"]
[Black "Chan, Chung Hong"]
[Result "1/2-1/2"]
[ECO "A57"]
[PlyCount "24"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d6 6. Nc3 Nbd7 7. a4 a5 8. e4 Qxb6 9. f4 e5 10. dxe6 fxe6 11. Bc4 Nxe4 12. Nxe4 d5 1/2-1/2

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "7"]
[White "Bos, Ivan"]
[Black "Hendriks, Mathijs"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "29"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Bb4 6. e3 0-0 7. Bd3 Be6 8. Qb3 Bxc3+ 9. Qxc3 Nbd7 10. Nf3 c6 11. 0-0 Bg4 12. Nd2 Rc8 13. b4 b5 14. a4 Ne4 15. Nxe4 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "3"]
[White "Bos, Ivan"]
[Black "Marx, Gemma"]
[Result "1-0"]
[ECO "D36"]
[PlyCount "110"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 0-0 8. Qc2 h6 9. Bf4 Bd6 10. Bg3 Re8 11. Nf3 Bg4 12. Ne5 Be6 13. 0-0 Qc7 14. Rfc1 a6 15. Rab1 Nbd7 16. Nf3 Bg4 17. b4 Qb8 18. a4 Bxg3 19. hxg3 Qd6 20. Nd2 Nh5 21. Nf1 Nhf6 22. Rb2 Rac8 23. Qb1 b5 24. a5 Kh8 25. Rd2 Ng8 26. f3 Be6 27. Kh2 Ndf6 28. Re1 Bd7 29. Bc2 Re7 30. Na2 Rce8 31. Nc1 h5 32. Kg1 Nh6 33. Nd3 Nf5 34. Kf2 h4 35. gxh4 Nxh4 36. Ne5 g6 37. Ng3 Kg7 38. Rh1 Rh8 39. Ne2 Be6 40. Nf4 Nd7 41. Nfd3 f6 42. Nxd7 Qxd7 43. Nc5 Qc8 44. g4 Bf7 45. Re2 g5 46. e4 dxe4 47. Bxe4 Bd5 48. Bxd5 Rxe2+ 49. Kxe2 cxd5 50. Kf2 Re8 51. Qd3 Ng6 52. Kg3 Rh8 53. Re1 Re8 54. Rxe8 Qxe8 55. Kf2 Qc8 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "1"]
[White "Bos, Ivan"]
[Black "Van Aken, Koen"]
[Result "1-0"]
[ECO "A57"]
[PlyCount "81"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 g6 6. Nc3 Bg7 7. a4 a5 8. Qb3 Bb7 9. Bf4 d6 10. e4 Nbd7 11. Bb5 0-0 12. Nf3 Nxb6 13. 0-0 Nxe4 14. Nxe4 Bxd5 15. Qc2 Bxe4 16. Qxe4 Bxb2 17. Rad1 Bc3 18. Qe3 Bb4 19. Bh6 e6 20. Bxf8 Qxf8 21. Ng5 Qe7 22. Ne4 d5 23. Nd2 e5 24. Kh1 f5 25. Rfe1 e4 26. f3 d4 27. Qb3+ Kg7 28. fxe4 fxe4 29. Rxe4 Qf6 30. Nf3 Qf5 31. Qe6 Qxe6 32. Rxe6 Nd5 33. Bc6 Rd8 34. Bxd5 Rxd5 35. Ne5 Kh6 36. h4 Bc3 37. Re7 d3 38. g4 Bxe5 39. g5+ Kh5 40. Rg1 h6 41. Rh7 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "4"]
[White "Buwalda, Saake"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "B85"]
[PlyCount "103"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 Be7 7. Be2 a6 8. f4 Nc6 9. Bf3 Qc7 10. Qe2 Bd7 11. 0-0 0-0 12. Nb3 b5 13. a3 Rac8 14. Rad1 Na5 15. Nxa5 Qxa5 16. Qf2 Rxc3 17. bxc3 Bc6 18. e5 Nd5 19. Bd4 Rc8 20. Kh1 Nxc3 21. Bxc3 Qxc3 22. exd6 Bxf3 23. Qxf3 Qxf3 24. Rxf3 Bd8 25. Rf2 Kf8 26. Re2 Bf6 27. g3 Rc5 28. d7 Bd8 29. Rd3 Ke7 30. Red2 Rc4 31. Kg2 Rc5 32. Kf1 Rc4 33. Ke2 Re4+ 34. Kd1 Rc4 35. Kc1 Rc6 36. Kb2 h6 37. Rd1 g6 38. Rc3 Rb6 39. Kb3 a5 40. Rc5 Rb7 41. c3 Rb6 42. g4 Rb7 43. f5 g5 44. fxe6 fxe6 45. Rc6 Rxd7 46. Rxd7+ Kxd7 47. Rc5 Bc7 48. h3 e5 49. Rxb5 Kc6 50. a4 e4 51. Kc2 Bb6 52. Kd2 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "8"]
[White "Houben, Jaap"]
[Black "Bos, Ivan"]
[Result "1/2-1/2"]
[ECO "B85"]
[PlyCount "84"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. f4 Nc6 8. Be3 Be7 9. 0-0 0-0 10. g4 Nxd4 11. Bxd4 e5 12. fxe5 dxe5 13. Bxe5 Bc5+ 14. Kg2 Qxd1 15. Raxd1 Nxg4 16. Bxg4 Bxg4 17. Rd5 Be7 18. h3 Be6 19. Rd4 Rac8 20. Bd6 Bxd6 21. Rxd6 Rfd8 22. Rfd1 Rxd6 23. Rxd6 Kf8 24. h4 Bxa2 25. Nxa2 Rxc2+ 26. Kf3 Rxb2 27. Nc1 Ke7 28. Rd3 Rc2 29. Ne2 b5 30. Nd4 Rc8 31. Ra3 Ra8 32. Nxb5 a5 33. Nd4 a4 34. Ne2 Ke6 35. Nc3 f5 36. Rxa4 Rxa4 37. Nxa4 fxe4+ 38. Kf4 Kf6 39. Nc3 g5+ 40. hxg5+ Kg6 41. Nd5 e3 42. Ne7+ Kf7 1/2-1/2

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "2"]
[White "Remmel, Tim"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "B85"]
[PlyCount "39"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. 0-0 Be7 8. a4 Nc6 9. Be3 0-0 10. f4 Qc7 11. Kh1 Rd8 12. Nb3 b6 13. Qe1 Rb8 14. Qg3 Nb4 15. Bd3 Nd7 16. f5 exf5 17. exf5 Bf6 18. Bf4 Ne5 19. Ne4 Qe7 20. Nxf6+ 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1995.??.??"]
[Round "6"]
[White "Thissen, Jasmijn"]
[Black "Bos, Ivan"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "112"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. Nge2 Rb8 8. a4 a6 9. 0-0 Nge7 10. Qd2 Nd4 11. f4 0-0 12. g4 f5 13. g5 Qa5 14. Ng3 Qb4 15. Rab1 Bd7 16. Ra1 Qxb2 17. Rfc1 Qxc3 18. Qxc3 Nf3+ 19. Bxf3 Bxc3 20. Ra2 Nc6 21. Ne2 Bg7 22. c3 Rfd8 23. Rb1 b5 24. axb5 axb5 25. Ra6 Bf8 26. exf5 Bc8 27. Ra3 Ne7 28. f6 Nf5 29. Bd2 d5 30. Rab3 Bd7 31. d4 c4 32. R3b2 Ra8 33. Nc1 b4 34. Kf2 b3 35. Nxb3 cxb3 36. Rxb3 Ra2 37. R3b2 Rxb2 38. Rxb2 Nd6 39. Be1 Bb5 40. Rb1 Ra8 41. Rd1 Ra2+ 42. Rd2 Rxd2+ 43. Bxd2 Bc4 44. Ke1 Nb5 45. Kd1 Bd3 46. Be2 Bxe2+ 47. Kxe2 Nd6 48. Kd1 Ne4 49. Kc2 Nxd2 50. Kxd2 Bd6 51. Ke3 Bc7 52. h3 Kf7 53. h4 Kf8 54. Kf3 Ba5 55. Ke3 Bxc3 56. Kd3 Be1 0-1

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "4"]
[White "Bos, Ivan"]
[Black "Cuijpers, Rene"]
[Result "1-0"]
[ECO "D53"]
[PlyCount "37"]
[EventDate "1994.??.??"]
[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 e6 2. c4 Nf6 3. Nc3 d5 4. Bg5 Be7 5. e3 b6 6. cxd5 Nxd5 7. Bxe7 Nxe7 8. Bd3 Nbc6 9. Nf3 Bb7 10. a3 0-0 11. Qc2 Ng6 12. h4 f5 13. h5 Nge7 14. Ng5 Bc8 15. 0-0-0 Rf6 16. Rdg1 h6 17. Nh3 e5 18. d5 Nxd5 19. Nxd5 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "2"]
[White "Bos, Ivan"]
[Black "De Boer, Willemijn"]
[Result "1-0"]
[ECO "D53"]
[PlyCount "41"]
[EventDate "1994.??.??"]
[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. Bg5 Be7 5. Nf3 Nc6 6. e3 b6 7. cxd5 exd5 8. Bb5 Bb7 9. Ne5 Qd6 10. Qa4 Nd7 11. Bxe7 Kxe7 12. Nxc6+ Ke6 13. Nb4 a5 14. Bxd7+ Qxd7 15. Qxd7+ Kxd7 16. Nbxd5 Rhg8 17. Rc1 Rac8 18. 0-0 b5 19. Nf4 b4 20. Na4 Ba8 21. Rc5 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "5"]
[White "Bos, Ivan"]
[Black "De Haas, Piet"]
[Result "1/2-1/2"]
[ECO "A40"]
[PlyCount "64"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 a6 4. e4 Nc6 5. Nf3 e5 6. d5 Nd4 7. Nxd4 exd4 8. Ne2 c5 9. dxc6 dxc6 10. h4 Be6 11. Qd3 Qd6 12. Bd2 Ne7 13. Rc1 f5 14. c5 fxe4 15. cxd6 exd3 16. Nf4 Bxa2 17. dxe7 Kxe7 18. Bxd3 Rac8 19. Bxg6 hxg6 20. Nxg6+ Kf7 21. Nxh8+ Bxh8 22. b4 Bd5 23. 0-0 b6 24. Rfd1 c5 25. bxc5 bxc5 26. Bc3 Rg8 27. Ba1 Bxg2 28. Re1 Be4+ 29. Kf1 Bd3+ 30. Re2 Re8 31. Rce1 Kg6 32. f3 Bf6 1/2-1/2

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "2"]
[White "Bos, Ivan"]
[Black "De Rover, Yong Hoon"]
[Result "0-1"]
[ECO "A65"]
[PlyCount "34"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. Bg5 Bg7 8. Bd3 Qa5 9. Qd2 0-0 10. Qf4 Nxd5 11. Qc1 Nxc3 12. Bd2 Nxa2 13. Qb1 Qc7 14. Rxa2 Re8 15. Ne2 Be6 16. Ra4 c4 17. Bc2 b5 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "6"]
[White "Bos, Ivan"]
[Black "Strijbis, P."]
[Result "1/2-1/2"]
[ECO "E76"]
[PlyCount "53"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. f4 0-0 7. Nf3 a6 8. Be2 b5 9. e5 dxe5 10. fxe5 Ng4 11. Bf4 Nd7 12. d6 Bb7 13. e6 fxe6 14. dxe7 Qxe7 15. Bd6 Bxc3+ 16. bxc3 Qf6 17. 0-0 Ne3 18. Qd3 Nxf1 19. Bxf8 Nxf8 20. Rxf1 bxc4 21. Qxc4 Qf5 22. Rd1 a5 23. Qb3 Be4 24. Qb6 a4 25. a3 Bc2 26. Rd2 Be4 27. Qc7 1/2-1/2

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "8"]
[White "Bos, Ivan"]
[Black "Zult, Daan"]
[Result "0-1"]
[ECO "D24"]
[PlyCount "90"]
[EventDate "1994.??.??"]
[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 dxc4 3. Nf3 a6 4. a4 Nf6 5. Nc3 c6 6. e3 Nbd7 7. Bxc4 b5 8. axb5 Nb6 9. Ne5 Nxc4 10. Nxc4 Be6 11. Ne5 cxb5 12. Qf3 Bd5 13. Nxd5 Qxd5 14. Qxd5 Nxd5 15. Bd2 g6 16. 0-0 Bg7 17. Nd3 0-0 18. Nc5 Rfc8 19. Rfc1 e5 20. Nb3 exd4 21. Nxd4 Bxd4 22. exd4 Rd8 23. Be3 Rd6 24. Rc5 Rad8 25. Rac1 Ne7 26. g4 f6 27. Rc7 Kf7 28. Ra7 R8d7 29. Rxd7 Rxd7 30. Kg2 f5 31. h3 Ke6 32. Kf3 Rd6 33. Rc7 fxg4+ 34. hxg4 h5 35. gxh5 gxh5 36. Rc5 Rd5 37. Rxd5 Nxd5 38. Bd2 Kf5 39. Bc1 a5 40. Bd2 a4 41. Kg3 b4 42. Kh4 b3 43. Bc1 Nb4 44. d5 Nxd5 45. Kxh5 Nf4+ 0-1

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "4"]
[White "Dambrink, Luois"]
[Black "Bos, Ivan"]
[Result "0-1"]
[ECO "B14"]
[PlyCount "44"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. c5 Be7 7. b4 0-0 8. Nf3 b6 9. Be2 a5 10. Qa4 Bd7 11. Qa3 Nc6 12. b5 Nb4 13. Qb2 bxc5 14. a3 cxd4 15. Nxd4 e5 16. axb4 exd4 17. Na2 axb4 18. 0-0 Qb6 19. Bd2 Bxb5 20. Bxb5 Qxb5 21. Nxb4 Ne4 22. Rxa8 Rxa8 0-1

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "5"]
[White "De Jonge, Maartje"]
[Black "Bos, Ivan"]
[Result "1/2-1/2"]
[ECO "B19"]
[PlyCount "40"]
[EventDate "1994.??.??"]
[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. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 e6 12. 0-0-0 Ngf6 13. Kb1 0-0-0 14. c4 c5 15. Bc3 Be7 16. Ne4 cxd4 17. Bxd4 Nc5 18. Nxc5 Bxc5 19. Qe3 Bxd4 20. Nxd4 a6 1/2-1/2

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "9"]
[White "Gerrits, Bastiaan"]
[Black "Bos, Ivan"]
[Result "1/2-1/2"]
[ECO "D10"]
[PlyCount "38"]
[EventDate "1994.??.??"]
[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 c6 3. Nc3 Nf6 4. Bg5 dxc4 5. a4 Nd5 6. e4 Nxc3 7. bxc3 b5 8. Nf3 Qc7 9. Be2 Bb7 10. 0-0 e6 11. Qd2 Be7 12. Rfb1 a6 13. Qb2 Bxg5 14. Nxg5 h6 15. Nf3 Nd7 16. Bxc4 0-0 17. Be2 Rfb8 18. Nd2 Nb6 19. Bd1 Bc8 1/2-1/2

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "1"]
[White "Janssen, Ruud"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "89"]
[EventDate "1994.??.??"]
[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. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. c5 0-0 8. a3 b6 9. b4 Qc7 10. Nb5 Qb7 11. Bf4 Ne8 12. Bd3 Bd7 13. Nc3 a6 14. Qc2 Nf6 15. g4 bxc5 16. bxc5 Bc6 17. Rb1 Qc8 18. h4 Nbd7 19. g5 Ne4 20. Nxe4 dxe4 21. Bxe4 Bxe4 22. Qxe4 Qd8 23. 0-0 Re8 24. Rb7 Rc8 25. Rfb1 Bxc5 26. Rxd7 Qxd7 27. dxc5 Rxc5 28. Rb7 Qc6 29. Qxc6 Rxc6 30. Ne5 Rc3 31. Nxf7 Rc5 32. Nd6 Rf8 33. Be3 Rd5 34. Ne4 Rfd8 35. Nc5 e5 36. Nxa6 R8d7 37. Rxd7 Rxd7 38. Nc5 Rd1+ 39. Kg2 Rd8 40. a4 Ra8 41. Kf3 Kf7 42. Ke4 Kg6 43. f3 Kf7 44. Kxe5 Ke7 45. Kd5 1-0

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "6"]
[White "Remmel, Tim"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "83"]
[EventDate "1994.??.??"]
[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 e6 5. Nf4 h6 6. c3 c5 7. Be3 Nc6 8. Nd3 c4 9. Nf4 b5 10. Be2 Nge7 11. 0-0 Nc8 12. Nh5 Nb6 13. Ng3 Bh7 14. f4 Qd7 15. Nd2 Na4 16. Qc1 b4 17. Bd1 Nb6 18. Nf3 a5 19. Ne1 a4 20. cxb4 Bxb4 21. Bd2 Be7 22. Bc3 0-0 23. Bg4 Rfc8 24. f5 a3 25. f6 axb2 26. Bxb2 Bf8 27. fxg7 Bxg7 28. Nh5 Qa7 29. Kh1 Na4 30. Nxg7 Kxg7 31. Rf6 Nxb2 32. Qxh6+ Kg8 33. Qg5+ Bg6 34. Bxe6 Kh7 35. Bxf7 Qxf7 36. Rxf7+ Bxf7 37. Nf3 Nd3 38. Qf6 Rf8 39. Qxc6 Nf2+ 40. Kg1 Ne4 41. e6 Bh5 42. Qxd5 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "3"]
[White "Resnick, Paul"]
[Black "Bos, Ivan"]
[Result "0-1"]
[ECO "D03"]
[PlyCount "101"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. Nbd2 Nbd7 5. e3 c5 6. c3 Be7 7. Ne5 Nxe5 8. dxe5 Nd7 9. Bxe7 Qxe7 10. f4 b6 11. Qg4 f6 12. Be2 fxe5 13. fxe5 Nxe5 14. Qh5+ Ng6 15. 0-0 Qh4 16. Bb5+ Ke7 17. Qe2 Bb7 18. Rf2 Rhf8 19. Raf1 Rxf2 20. Rxf2 Rf8 21. Rxf8 Nxf8 22. Qf3 Qf6 23. Qf4 Qxf4 24. exf4 Ng6 25. g3 Kd6 26. Bd3 Nf8 27. Nf3 c4 28. Be2 a6 29. Kf2 Nd7 30. Nd4 Nc5 31. Ke3 Na4 32. b3 cxb3 33. axb3 Nxc3 34. f5 e5 35. Ne6 d4+ 36. Kd2 Nxe2 37. Kxe2 g6 38. fxg6 hxg6 39. Ng5 Bd5 40. b4 Kc6 41. g4 Kb5 42. h4 Kxb4 43. h5 gxh5 44. gxh5 a5 45. h6 Bg8 46. Kd2 a4 47. h7 Bxh7 48. Nxh7 Kb3 49. Kc1 a3 50. Kb1 a2+ 51. Ka1 0-1

[Event "NED-ch U16"]
[Site "Hengelo"]
[Date "1994.??.??"]
[Round "3"]
[White "Thissen, Thomas"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "37"]
[EventDate "1994.??.??"]
[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. exd5 cxd5 4. Bd3 Nc6 5. Nf3 Bg4 6. c3 e6 7. Bf4 Nf6 8. Nbd2 Rc8 9. Qb3 Qb6 10. Qxb6 axb6 11. Ne5 Nxe5 12. Bxe5 Nd7 13. Bg3 Be7 14. Bb5 Kd8 15. 0-0 g5 16. f4 h6 17. fxg5 Bxg5 18. Rxf7 Nf6 19. Bd6 1-0

[Event "Haarlem AKN op 03rd"]
[Site "Haarlem"]
[Date "1994.??.??"]
[Round "1"]
[White "Van den Dikkenberg, Erik"]
[Black "Bos, Ivan"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "31"]
[EventDate "1994.07.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 Ne7 7. Ng3 Nd7 8. f4 h6 9. Be3 Qb6 10. Qd2 Rc8 11. Na4 Qc7 12. b4 b6 13. Bd3 c5 14. dxc5 bxc5 15. Nxc5 Nc6 16. Nxe6 1-0

