[Event "Computerij op"]
[Site "Zwolle"]
[Date "1998.??.??"]
[Round "1"]
[White "Bosma, Bartele"]
[Black "Van den Doel, Erik"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "2485"]
[PlyCount "100"]
[EventDate "1998.03.??"]
[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 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 Nc6 6. Bc4 Nb6 7. Bb3 g6 8. cxd4 Bg7 9. 0-0 0-0 10. h3 d6 11. exd6 Qxd6 12. d5 Na5 13. Nc3 Nxb3 14. Qxb3 Bxc3 15. bxc3 Qxd5 16. Qb4 Re8 17. Be3 Bxh3 18. Rad1 Qc6 19. Qh4 Be6 20. Qh6 g5 21. Qxg5+ Kh8 22. Bd4+ f6 23. Bxf6+ exf6 24. Qxf6+ Kg8 25. Qg5+ Kh8 26. Qf6+ Kg8 27. Ne5 Qe4 28. Rd3 Qxd3 29. Nxd3 Nd7 30. Qg5+ Kf8 31. Rb1 b6 32. Rb4 Bf7 33. Rh4 Bg6 34. Nf4 Be4 35. Nd5 Bg6 36. Nc7 Re1+ 37. Kh2 Rc8 38. Rf4+ Kg7 39. Nd5 Re5 40. Qg4 Rxd5 41. Qe6 Rcc5 42. Qe7+ Kh6 43. g4 Rxc3 44. g5+ Kh5 45. Rf7 Ne5 46. Rxh7+ Bxh7 47. Qxh7+ Kxg5 48. Kg2 Ng6 49. Qg7 Rcc5 50. f4+ Kxf4 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Baalbergen, Joop"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "C57"]
[PlyCount "71"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. d3 Ne6 9. Qf3 Nxg5 10. Bxg5 Qxg5 11. Qxd5 Qc1+ 12. Ke2 Bg4+ 13. f3 Rd8 14. Qxb5+ Bd7 15. Qxe5+ Be7 16. c4 0-0 17. Qc3 Qh6 18. Kd1 Rfe8 19. Kc2 Ba4+ 20. b3 Bf6 21. Qd2 Bxb3+ 22. axb3 Qxd2+ 23. Nxd2 Bxa1 24. Ne4 f5 25. Nd2 Re1 26. g3 a5 27. Bg2 Rde8 28. f4 Bd4 29. Bd5+ Kf8 30. Rxe1 Rxe1 31. Nf3 Bf2 32. Nxe1 Bxe1 33. Be6 g6 34. g4 fxg4 35. Bxg4 c5 36. Bf3 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "6"]
[White "Bosma, Bartele"]
[Black "Mak, Nico"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "20"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 cxd4 6. cxd4 Nge7 7. Bd3 Nb4 8. Qa4+ Nec6 9. Bb5 a6 10. Bxc6+ Nxc6 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Bosma, Bartele"]
[Black "Peters, Harry"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "66"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 e6 5. Nf3 d6 6. Nc3 a6 7. a3 Nf6 8. Be3 g6 9. Qd2 Na5 10. Rb1 b5 11. b3 Bb7 12. d5 exd5 13. exd5 Bg7 14. b4 Nc4 15. Bxc4 bxc4 16. Qd4 0-0 17. Qxc4 Rc8 18. Qd3 Ng4 19. Nd1 Nxe3 20. fxe3 Re8 21. 0-0 Qc7 22. Nd2 Qc2 23. Rb3 Rc7 24. e4 Rec8 25. Ne3 Qxd3 26. Rxd3 Rc3 27. Rxc3 Rxc3 28. Ndc4 Bd4 29. Rf3 Rxc4 30. Kf1 Rc1+ 31. Ke2 Bxe3 32. Rxe3 Rc2+ 33. Kf3 f5 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Bosma, Bartele"]
[Black "Van der Wakker, Peter"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "74"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. d4 e6 4. Nf3 b6 5. Be3 Nf6 6. Nbd2 Bb7 7. a3 Be7 8. Bd3 d6 9. h3 0-0 10. Qc2 h6 11. 0-0 Rc8 12. Rfe1 cxd4 13. Nxd4 Nd7 14. N2f3 Bf6 15. Qd2 Nde5 16. Nxe5 Nxe5 17. Be2 d5 18. f4 Nc4 19. Bxc4 dxc4 20. e5 Be7 21. Rad1 Bc5 22. Qf2 Bd5 23. Qg3 Be7 24. Nf3 Kh8 25. Qf2 Rc7 26. Nd4 Rd7 27. Qe2 Qa8 28. f5 exf5 29. Nxf5 Be6 30. Rxd7 Bxd7 31. Nxe7 Re8 32. Bg5 Be6 33. Qh5 Kh7 34. Rf1 Qe4 35. Rxf7 Bxf7 36. Qxf7 Qe1+ 37. Kh2 Qxe5+ 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Buter, Andre"]
[Black "Bosma, Bartele"]
[Result "0-1"]
[ECO "C86"]
[PlyCount "72"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. c3 0-0 8. Qe2 d6 9. Rd1 Na5 10. Bc2 c5 11. d3 Bg4 12. Nbd2 Qd7 13. Nf1 Nc6 14. Ne3 Bh5 15. h3 Nd8 16. Kh1 Ne6 17. Nf5 Bd8 18. g4 Bg6 19. Rg1 Bc7 20. h4 h5 21. Ng5 hxg4 22. f3 gxf3 23. Qxf3 Bh5 24. Qg2 g6 25. Bd2 Nf4 26. Bxf4 exf4 27. Qh3 Kh8 28. Raf1 gxf5 29. Rxf4 Bg4 30. Rgxg4 fxg4 31. Qf1 Nh7 32. Nxf7+ Kg7 33. Ng5 Nxg5 34. hxg5 Rxf4 35. Qxf4 Rf8 36. Qc1 g3 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "?"]
[White "Greven, Ron"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "C36"]
[PlyCount "51"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d5 4. e5 Be7 5. Be2 Bh4+ 6. Kf1 Nh6 7. d4 Ng4 8. Bxf4 Nf2 9. Qe1 Nxh1 10. Qxh4 Qxh4 11. Nxh4 h6 12. Nf3 g5 13. Bd2 g4 14. Bf4 gxf3 15. Bxf3 Be6 16. Kg1 Nc6 17. c3 Ne7 18. Kxh1 c6 19. Nd2 Ng6 20. Be3 a5 21. Bh5 Kd7 22. Rf1 Rag8 23. Rf6 Ke7 24. Nf3 b5 25. a3 Rh7 26. g3 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1991.??.??"]
[Round "7"]
[White "Slikker, Dirk"]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "C57"]
[PlyCount "59"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. Nxf7 Kxf7 9. cxd4 exd4 10. Qf3+ Nf6 11. Bxb5 Rb8 12. Bc4+ Ke8 13. Qe2+ Be7 14. d3 Qd6 15. b3 Rf8 16. Ba3 c5 17. Nd2 Bf5 18. Nf3 Bg4 19. 0-0-0 Nd7 20. Rhe1 Kd8 21. Qe4 Bxf3 22. gxf3 Bg5+ 23. Kb1 Rf4 24. Qxh7 Bh6 25. Re6 Qf8 26. Rde1 Kc7 27. Bc1 Rxf3 28. Bxh6 gxh6 29. Re7 Qf5 30. Rxd7+ 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "5"]
[White "Bosma, Bartele"]
[Black "Havelaar, Tim"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "43"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 Nf6 4. Bd3 Nc6 5. Nf3 cxd4 6. cxd4 g6 7. Nc3 Bg7 8. Be3 a6 9. a3 0-0 10. 0-0 Bg4 11. Be2 Nd7 12. h3 Bxf3 13. Bxf3 Rb8 14. Rc1 Nb6 15. Be2 Na5 16. b3 Nc6 17. f4 Nd7 18. d5 Na5 19. b4 Nc4 20. Bxc4 Rc8 21. Qb3 Qc7 22. Ne2 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "2"]
[White "Bosma, Bartele"]
[Black "Van der Sluijs, Lothar"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "75"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. f4 Bg7 6. Nf3 e6 7. d3 Nge7 8. Bd2 0-0 9. 0-0 Rb8 10. Rb1 b5 11. Ne2 a5 12. c3 b4 13. d4 cxd4 14. cxd4 d5 15. e5 Qb6 16. Be3 Ba6 17. Re1 Rfc8 18. Nc1 Bf8 19. g4 Nd8 20. Nb3 Nb7 21. Nc5 Nxc5 22. dxc5 Qc7 23. Rc1 Nc6 24. Nd4 Nxd4 25. Bxd4 Bb5 26. b3 Qa7 27. Bf1 Bxf1 28. Kxf1 Bxc5 29. Bxc5 Rxc5 30. Qd4 Qa6+ 31. Kf2 Rxc1 32. Rxc1 Rc8 33. Rc5 Rxc5 34. Qxc5 Kg7 35. Qe7 Qb6+ 36. Kf3 Qb8 37. Qc5 Qa8 38. Ke3 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "7"]
[White "Ens, Jan"]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "109"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. 0-0 Bc5 5. d3 d6 6. Bg5 h6 7. Bh4 g5 8. Bg3 Bg4 9. c3 Qe7 10. Nbd2 Nh5 11. Kh1 Nf4 12. b4 Bb6 13. a4 a6 14. a5 Ba7 15. Bxf4 gxf4 16. b5 axb5 17. Bxb5 Bd7 18. Qb3 Qe6 19. Bc4 Qg6 20. a6 bxa6 21. Rxa6 Rb8 22. Qa2 Bb6 23. Bd5 Ne7 24. Bc4 Nc6 25. Bd5 Ke7 26. Nh4 Qf6 27. Ndf3 Nd8 28. d4 exd4 29. Nf5+ Bxf5 30. exf5 Qxf5 31. Re1+ Ne6 32. cxd4 Kf6 33. Be4 Qb5 34. d5 Nd4 35. Qa1 Rhe8 36. Nxd4 Bxd4 37. Qxd4+ Re5 38. Raa1 Qd7 39. Rac1 Rbe8 40. f3 Kg5 41. Qf2 Qe7 42. g3 fxg3 43. Qxg3+ Kf6 44. Qf4+ Kg7 45. Rg1+ Rg5 46. h4 Rg6 47. Bxg6 fxg6 48. h5 g5 49. Qf5 Kh8 50. Rce1 Qxe1 51. Rxe1 Rxe1+ 52. Kg2 Re5 53. Qc8+ Kg7 54. Qxc7+ Kf6 55. Qxd6+ 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "3"]
[White "Rietveld, Gerard"]
[Black "Bosma, Bartele"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "76"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. f4 d5 3. Nf3 Nc6 4. c3 Bf5 5. e3 e6 6. Be2 Be7 7. 0-0 0-0 8. Nh4 Be4 9. Nd2 Ne8 10. Nhf3 Nd6 11. Qe1 Nf5 12. Nxe4 dxe4 13. Ng5 Bxg5 14. fxg5 Qxg5 15. Rf4 Nd6 16. Rg4 Qe7 17. b4 f5 18. Rh4 a6 19. a4 Qf6 20. Rf4 Ne7 21. c4 Ng6 22. Rf2 e5 23. d5 f4 24. c5 Nf7 25. Bb2 Qh4 26. Qc3 Qh6 27. exf4 exf4 28. Bh5 e3 29. Rf3 Ng5 30. Rff1 Rf7 31. Bg4 Re8 32. Bf3 e2 33. Rf2 Re3 34. Qe1 Nxf3+ 35. gxf3 Nh4 36. Ra3 Rfe7 37. Rxe3 fxe3 38. Rg2 Nxf3+ 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "1"]
[White "Van der Wakker, Peter"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "D40"]
[PlyCount "64"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 e6 3. e3 Nc6 4. Nf3 Nf6 5. d4 cxd4 6. exd4 d5 7. Bd3 dxc4 8. Bxc4 Be7 9. 0-0 0-0 10. Be3 a6 11. a3 Qc7 12. Qe2 b5 13. Ba2 b4 14. axb4 Nxb4 15. Bb3 a5 16. Nb5 Qd8 17. Nc3 Ba6 18. Bc4 Bxc4 19. Qxc4 Nfd5 20. Nxd5 Nxd5 21. Bd2 Qb6 22. Qa2 Nb4 23. Bxb4 Bxb4 24. Rfc1 Rfd8 25. Rc4 f6 26. Rac1 Rd6 27. Qa4 Qd8 28. Qa2 h6 29. h3 Rb8 30. Rc7 Kh8 31. Qb1 Rd7 32. R7c4 Rd5 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1990.??.??"]
[Round "6"]
[White "Vlaming, Jos Pl"]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "45"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4 6. Bc4 d6 7. 0-0 Bxc3 8. bxc3 Nf6 9. e5 dxe5 10. Qb3 0-0 11. Rd1 Qe8 12. Ba3 Na5 13. Qb4 Nxc4 14. Qxc4 c6 15. Bxf8 Kxf8 16. Qc5+ Kg8 17. Nxe5 Be6 18. c4 Ne4 19. Qe3 Bf5 20. Qf4 Qe6 21. Nf3 Bg6 22. Re1 Qxc4 23. Ne5 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "1"]
[White "Bosma, Bartele"]
[Black "Bijkerk, Timo"]
[Result "1/2-1/2"]
[ECO "C22"]
[PlyCount "37"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. Qxd4 Nc6 5. Qa4 Bc5 6. Bd3 0-0 7. Bg5 d6 8. c3 Ne5 9. Nxe5 dxe5 10. Bxf6 Qxf6 11. 0-0 Qg5 12. Be2 Rd8 13. Rd1 Be6 14. Qc2 Rxd1+ 15. Bxd1 Rd8 16. b4 Bg4 17. Bxg4 Qxg4 18. Na3 Be7 19. Nc4 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "5"]
[White "Bosma, Bartele"]
[Black "Ens, Jan"]
[Result "1/2-1/2"]
[ECO "B24"]
[PlyCount "49"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d6 5. f4 e6 6. Nf3 Be7 7. d3 a6 8. 0-0 0-0 9. Be3 Qc7 10. Ne2 b5 11. c3 Bb7 12. Qc2 Rac8 13. Rac1 d5 14. e5 Ng4 15. Bd2 Qb6 16. h3 Nh6 17. Qd1 Rfd8 18. Kh2 d4 19. cxd4 Nxd4 20. Nexd4 cxd4 21. g4 Rxc1 22. Bxc1 Kh8 23. Nd2 Bxg2 24. Kxg2 Rc8 25. Nf3 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "4"]
[White "Bosma, Bartele"]
[Black "Kool, Gerard J"]
[Result "1-0"]
[ECO "B22"]
[BlackElo "2295"]
[PlyCount "43"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. cxd4 Nc6 6. Nf3 d6 7. Bc4 Nb6 8. Qb3 Nxc4 9. Qxc4 dxe5 10. d5 Na5 11. Qe4 Qc7 12. Nc3 f6 13. Nb5 Qd7 14. Qa4 Kf7 15. Qxa5 b6 16. Qb4 Ba6 17. a4 e6 18. dxe6+ Qxe6 19. Qe4 Rc8 20. 0-0 Rc4 21. Qa8 Rc8 22. Qxa7+ 1-0

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "6"]
[White "Schermer, Anton"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "A07"]
[PlyCount "46"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nc6 2. g3 e5 3. d3 d5 4. Bg2 Bg4 5. 0-0 e4 6. dxe4 dxe4 7. Qxd8+ Rxd8 8. Nh4 Nd4 9. Bxe4 Nf6 10. Bd3 Be7 11. Nc3 Nd5 12. Nxd5 Rxd5 13. e3 Ne2+ 14. Bxe2 Bxe2 15. Re1 Bd1 16. e4 Rd7 17. Nf5 Bxc2 18. Nxg7+ Kd8 19. Nf5 Bb4 20. Bg5+ Kc8 21. Bf6 Re8 22. Bc3 Bxc3 23. bxc3 Rxe4 1/2-1/2

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "3"]
[White "Temming, Jan"]
[Black "Bosma, Bartele"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "39"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 Nxd4 5. Nxe5 Ne6 6. Be3 d6 7. Nd3 Nxe4 8. 0-0 Be7 9. f4 f5 10. g4 0-0 11. gxf5 Rxf5 12. Qg4 g6 13. Kh1 d5 14. Rg1 dxc4 15. Qxf5 Nd6 16. Rxg6+ hxg6 17. Qxg6+ Ng7 18. Ne5 Bf5 19. Qh6 Be4+ 20. Kg1 0-1

[Event "Alkmaar ACCOM op"]
[Site "Alkmaar"]
[Date "1989.??.??"]
[Round "2"]
[White "Welten, Hans"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "74"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 d5 5. Bb5 dxe4 6. 0-0 Bd7 7. Nc3 Nf6 8. Bg5 Be7 9. Bxc6 bxc6 10. Bxf6 Bxf6 11. Nxe4 0-0 12. c3 Re8 13. Re1 Qe7 14. Nf3 Be6 15. Qa4 Bd5 16. Nxf6+ Qxf6 17. Qg4 Be6 18. Qg3 Re7 19. Nd4 Bd5 20. Re3 Rae8 21. Rae1 Rxe3 22. Rxe3 Rxe3 23. Qxe3 Qd8 24. h3 h6 25. Qg3 Qd6 26. Qe3 Qd7 27. b3 a5 28. c4 Be6 29. Nf3 a4 30. Qe1 axb3 31. axb3 c5 32. Qd2 Qe7 33. Qe3 Qd6 34. Nd2 f5 35. Nf3 g5 36. Ne1 f4 37. Qe4 Bf7 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "2"]
[White "Bosma, Bartele"]
[Black "Neerings, M."]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "67"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 c4 6. Be3 h6 7. Nbd2 b5 8. b3 a6 9. a4 Bb7 10. axb5 axb5 11. b4 Nge7 12. Be2 Nf5 13. Nf1 Qb6 14. Rxa8+ Bxa8 15. Qa1 Bb7 16. Bd2 g5 17. h3 Be7 18. Ne3 Nxe3 19. Bxe3 Nxb4 20. cxb4 Bxb4+ 21. Bd2 Be7 22. 0-0 0-0 23. Rb1 Ra8 24. Qb2 Bc6 25. Bb4 Bxb4 26. Qxb4 Ra2 27. Bd1 Qa7 28. Qd6 Ra1 29. Qd8+ Kg7 30. Qf6+ Kg8 31. Qd8+ Kg7 32. Bc2 Rxb1+ 33. Bxb1 Qa1 34. Qf6+ 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "6"]
[White "Bosma, Bartele"]
[Black "Schaaps, Cor"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "90"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 Nxc3 7. dxc3 Qh4 8. Qe2 Bxc5 9. g3 Qe7 10. Qg4 Qf8 11. b4 Bb6 12. Bf4 Nc6 13. a3 a5 14. b5 Ne7 15. a4 Nf5 16. Qe2 d5 17. exd6 cxd6 18. Nf3 Qe7 19. 0-0 0-0 20. Bd3 e5 21. Bd2 Be6 22. Qe4 f6 23. c4 g6 24. g4 Ng7 25. Bh6 f5 26. gxf5 Bxf5 27. Qd5+ Be6 28. Qe4 Bh3 29. Rfe1 Qf6 30. Be2 Rf7 31. Bg5 Bxf2+ 32. Kxf2 Qxg5 33. Rg1 Qf6 34. Ke1 Be6 35. Kd2 Qf4+ 36. Qxf4 Rxf4 37. Ke3 Bxc4 38. Bxc4+ Rxc4 39. Rad1 Rac8 40. Ke2 Nf5 41. Nd2 Rc2 42. Kd3 d5 43. Rge1 e4+ 44. Nxe4 dxe4+ 45. Rxe4 R8c3# 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "4"]
[White "Bosma, Bartele"]
[Black "Van Beusekom, Leo"]
[Result "0-1"]
[ECO "C57"]
[PlyCount "64"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. cxd4 Qxg5 9. Bxb5+ Bd7 10. Bxd7+ Kxd7 11. Qf3 exd4 12. 0-0 Be7 13. d3 Qe5 14. Bd2 c6 15. Re1 Qf6 16. Qg4+ Kc7 17. Ba5+ Nb6 18. Nd2 h5 19. Qd1 Kd7 20. Nc4 Nxc4 21. dxc4 Rhb8 22. Bc3 c5 23. Qa4+ Kd6 24. Rad1 Rb7 25. Qa3 Kc6 26. Ba5 Kd7 27. Qa4+ Kd6 28. b4 Rab8 29. bxc5+ Kxc5 30. Rc1 Rb2 31. Qa3+ Kc6 32. Qxe7 Qxf2+ 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "5"]
[White "De Groot, N."]
[Black "Bosma, Bartele"]
[Result "0-1"]
[ECO "C46"]
[PlyCount "16"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Nxe5 Bxf2+ 5. Kxf2 Nxe5 6. d4 Qf6+ 7. Kg1 Ne7 8. dxe5 Qb6+ 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "1"]
[White "Otte, Marco"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "31"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 d5 5. exd5 Qxd5 6. Be3 Nf6 7. Nc3 Bb4 8. Qd3 Be6 9. 0-0-0 Bxc3 10. Qxc3 Qxa2 11. Qa3 Qxa3 12. bxa3 0-0 13. Nxe6 fxe6 14. Bc4 Rfe8 15. f3 a6 16. Bf4 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "3"]
[White "Strik, Aart"]
[Black "Bosma, Bartele"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "84"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Bc4 Nxe4 4. Nf3 Nxc3 5. dxc3 Be7 6. Nxe5 0-0 7. Qh5 d5 8. Bd3 f5 9. Qd1 c6 10. h4 Nd7 11. Nf3 Qe8 12. Kf1 Nc5 13. Be2 Ne4 14. Bf4 Bc5 15. Nd4 Bd7 16. f3 Nf6 17. Qd2 Rd8 18. Bd3 Nh5 19. Bh2 Qf7 20. Re1 Rde8 21. Re2 Rxe2 22. Kxe2 f4 23. Kd1 Bd6 24. b3 Qf6 25. Bg1 Ng3 26. Rh2 c5 27. Ne2 Nf1 28. Qe1 Nxh2 29. Bxh2 Re8 30. Qf2 b6 31. Kd2 Bf5 32. g4 Bxd3 33. cxd3 g5 34. hxg5 Qxg5 35. Bg1 Re6 36. Qg2 a5 37. b4 cxb4 38. Bxb6 bxc3+ 39. Nxc3 Bb4 40. Bd4 Qh4 41. Bf2 Qf6 42. d4 Rc6 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1988.??.??"]
[Round "7"]
[White "Zweers, T."]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "56"]
[EventDate "1988.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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. Bf4 Nf6 4. e3 c6 5. c5 Nbd7 6. h3 Be7 7. Nc3 b6 8. b4 a5 9. a3 b5 10. Nf3 0-0 11. Be2 Re8 12. 0-0 Bf8 13. Qc2 Nh5 14. Bh2 f5 15. Ne5 Nxe5 16. dxe5 g6 17. Bxh5 gxh5 18. Qe2 h4 19. Bf4 Be7 20. Qh5 Kh8 21. Kh1 Rg8 22. Ne2 Bd7 23. Nd4 a4 24. Rg1 Rg6 25. g3 Be8 26. Qe2 hxg3 27. Rxg3 Qd7 28. Rag1 Bf7 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "1"]
[White "Bosma, Bartele"]
[Black "Kamps, Ronald"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "101"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. Nd5 Nxe4 6. Qe2 Nxf2 7. d4 Nxh1 8. dxc5 d6 9. Bg5 Nd4 10. Nxd4 Qxg5 11. Nxc7+ Kf8 12. Nf3 Qf4 13. Nxa8 e4 14. Bb5 Bg4 15. Rd1 Ke7 16. cxd6+ Kf6 17. Nc7 Be6 18. Nd4 Qxh2 19. Qxe4 Qg1+ 20. Kd2 Qf2+ 21. Kc1 Ng3 22. Qf3+ Qxf3 23. gxf3 a6 24. Be8 Bc4 25. d7 Ke7 26. b3 Be2 27. Nxe2 Nxe2+ 28. Kb2 Kd8 29. Nd5 h5 30. Bxf7 Kxd7 31. Nf4+ Ke7 32. Nxe2 Kxf7 33. Rd7+ Kf6 34. Rxb7 Ra8 35. Nf4 Rh8 36. Rb6+ Kf5 37. Nxh5 Rxh5 38. Rxa6 Rh3 39. Ra7 g5 40. a4 Kf4 41. Rf7+ Ke3 42. a5 Rh6 43. Rf5 Rg6 44. b4 g4 45. fxg4 Rxg4 46. b5 Ra4 47. b6 Ke4 48. Rh5 Rb4+ 49. Kc3 Rb1 50. Kc4 Rb2 51. c3 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "3"]
[White "Bosma, Bartele"]
[Black "Keesman, Karel"]
[Result "1-0"]
[ECO "C43"]
[PlyCount "63"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 Nf6 5. dxe5 Nd5 6. Bxh7 Rxh7 7. Qxd5 Be7 8. Nc3 Nc6 9. a3 b6 10. Bf4 Bb7 11. Qd3 g6 12. 0-0-0 Bf8 13. Bg5 Bh6 14. h4 Nxe5 15. Qe3 Qe7 16. Bxh6 Nxf3 17. Qxe7+ Kxe7 18. Bf4 Rxh4 19. Rxh4 Nxh4 20. Bg5+ f6 21. Bxh4 Bxg2 22. Rg1 Bc6 23. Rxg6 Rf8 24. Ne2 d6 25. Nd4 Bd7 26. c4 Rh8 27. Bxf6+ Kf7 28. Bxh8 Kxg6 29. Nb5 Bxb5 30. cxb5 Kf5 31. Kd2 d5 32. Kd3 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "7"]
[White "Bosma, Bartele"]
[Black "Schaaps, Cor"]
[Result "1/2-1/2"]
[ECO "C02"]
[PlyCount "74"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bb4+ 8. Nc3 Nge7 9. a3 Bxc3+ 10. bxc3 Bd7 11. 0-0 f5 12. Rb1 Qc7 13. Re1 Na5 14. Bd2 Rb8 15. Qc2 0-0 16. Rec1 a6 17. c4 Nac6 18. Bg5 Qa5 19. Qb2 h6 20. Bd2 Qd8 21. c5 Na7 22. Qc2 Bb5 23. a4 Bxd3 24. Qxd3 Nac6 25. Rb3 Rf7 26. Rcb1 Qc7 27. Ne1 Na5 28. Rb6 Nac6 29. Nc2 Nd8 30. Qb3 Ra8 31. Qg3 Nc8 32. R6b3 Kh7 33. f4 Qc6 34. Qh4 Qd7 35. Ba5 Nc6 36. Qe1 N8a7 37. Bc3 Rb8 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "5"]
[White "Bosma, Bartele"]
[Black "Veel, Elbert"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "95"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 Bg4 6. c5 Bxf3 7. Qxf3 Nd5 8. Bc4 e6 9. a3 Be7 10. 0-0 0-0 11. Nc3 c6 12. Be3 Nd7 13. Nxd5 exd5 14. Bd3 Nf6 15. Rfe1 Re8 16. b4 h5 17. Bf4 Qc8 18. h3 Bf8 19. Re5 Rxe5 20. dxe5 Ne4 21. Qxh5 g6 22. Qf3 Qe6 23. Bxe4 dxe4 24. Qxe4 Rd8 25. Bg5 Rd5 26. Bf6 Bg7 27. Bxg7 Kxg7 28. Re1 Rd2 29. f4 Qd5 30. Qxd5 cxd5 31. e6 Kf8 32. exf7 d4 33. Re6 Kxf7 34. Rd6 d3 35. Kf1 a6 36. Ke1 Re2+ 37. Kf1 Rd2 38. g3 Rd1+ 39. Kf2 d2 40. Ke2 Ra1 41. Rxd2 Rxa3 42. Rd7+ Ke6 43. Rxb7 Rxg3 44. Rb6+ Kd5 45. Rxa6 Rxh3 46. Rxg6 Rb3 47. Rb6 Ke4 48. Kd2 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "2"]
[White "Schuit, Adrie"]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "93"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. 0-0 d6 6. c3 h6 7. d4 exd4 8. cxd4 Bb6 9. d5 Ne5 10. Nxe5 dxe5 11. Bb5+ Bd7 12. Bxd7+ Qxd7 13. Nc3 0-0 14. Qe2 a6 15. b3 Qd6 16. Bb2 Rac8 17. Rad1 Rfe8 18. Kh1 Bd4 19. Rd3 c6 20. dxc6 Qxc6 21. f3 b5 22. Rc1 Qb6 23. Rc2 Qc5 24. Rcd2 Qb4 25. Nd1 Bxb2 26. Rxb2 Red8 27. a3 Qxa3 28. Rc2 Qe7 29. Ra2 Qe6 30. Qd2 Rxd3 31. Qxd3 Nd7 32. Rc2 Rxc2 33. Qxc2 Qd6 34. h3 Qc5 35. Qd2 Qd4 36. Qe1 Nc5 37. Ne3 Nxb3 38. Nf5 Qb6 39. Qc3 Qe6 40. f4 f6 41. Qg3 g5 42. Nxh6+ Kg7 43. fxg5 fxg5 44. Qxg5+ Qg6 45. Nf5+ Kh7 46. Qh4+ Kg8 47. Ne7+ 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1987.??.??"]
[Round "6"]
[White "Van der Zalm, Marnix"]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "D94"]
[PlyCount "85"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 c6 5. e3 g6 6. Bd3 Bg7 7. 0-0 0-0 8. b4 Nbd7 9. Ba3 Re8 10. b5 a6 11. Qb3 axb5 12. cxb5 Bf8 13. Bc1 c5 14. Qc2 c4 15. Be2 Nb6 16. a4 Bd7 17. Bd2 Nc8 18. e4 Qc7 19. Ne5 Nd6 20. Nxd7 Nxd7 21. exd5 Nf5 22. dxe6 Rxe6 23. Nd5 Qc8 24. Be3 Rd6 25. Bxc4 Rxd5 26. Qb3 Rd6 27. Bxf7+ Kh8 28. Bg5 Bg7 29. Rac1 Qf8 30. Rfe1 Rxd4 31. Rc7 h6 32. Be3 Nc5 33. Qa3 b6 34. Bxd4 Nxd4 35. Qa2 Qd6 36. Rce7 Rxa4 37. Qb1 Nf5 38. Re8+ Kh7 39. Bg8+ Kh8 40. Bb3+ Kh7 41. Bxa4 Nxa4 42. Qa2 Bf8 43. Qf7+ 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "1"]
[White "Bosma, Bartele"]
[Black "Hartog, J."]
[Result "1-0"]
[ECO "C41"]
[PlyCount "92"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 h6 4. c3 Nf6 5. d3 c6 6. h3 Nbd7 7. Be3 a5 8. a4 Be7 9. Nbd2 0-0 10. 0-0 c5 11. d4 exd4 12. cxd4 Nb6 13. Ba2 Bd7 14. b3 Qc8 15. Re1 Re8 16. Rc1 Bxh3 17. gxh3 Qxh3 18. Nh2 Rac8 19. Qf3 Qxf3 20. Nhxf3 Ng4 21. d5 Nxe3 22. Rxe3 Nd7 23. Nc4 b6 24. Bb1 g5 25. Kg2 g4 26. Nh2 Bg5 27. Nxd6 Bxe3 28. fxe3 Ne5 29. Nxc8 Rxc8 30. Rf1 Kg7 31. Rf5 f6 32. Kg3 c4 33. bxc4 Rxc4 34. Nxg4 Nxg4 35. Kxg4 Rxa4 36. d6 Kf7 37. Rb5 Rb4 38. Rxb4 axb4 39. Kf5 h5 40. Ba2+ Ke8 41. Be6 b5 42. Kf4 b3 43. Bxb3 Kd7 44. e5 fxe5+ 45. Kxe5 h4 46. Be6+ Ke8 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "7"]
[White "Bosma, Bartele"]
[Black "Jansen, Josef"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "60"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Bd3 Qb6 7. 0-0 cxd4 8. cxd4 Nxd4 9. Nxd4 Qxd4 10. Nc3 a6 11. Re1 Ne7 12. Kh1 Nc6 13. f4 Nb4 14. Re3 g6 15. Ne2 Nxd3 16. Rxd3 Qb6 17. a4 a5 18. Rb3 Qc7 19. Be3 Rc8 20. Bb6 Qc2 21. Nc3 Qxd1+ 22. Rxd1 Bb4 23. Nb5 Bxb5 24. axb5 Rc4 25. g3 Kd7 26. Ra1 Ra8 27. Ra4 h5 28. Kg2 h4 29. Kh3 hxg3 30. Kxg3 Be1+ 0-1

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "5"]
[White "Bosma, Bartele"]
[Black "Leydes, A."]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "40"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4 5. a3 N4c6 6. Be3 Bf5 7. Nf3 Nd7 8. Nc3 e6 9. Bd3 Bxd3 10. Qxd3 Be7 11. 0-0 Bf6 12. Rad1 0-0 13. Rfe1 Ne7 14. Ne4 h6 15. Nxf6+ Nxf6 16. Ne5 Nf5 17. Qb3 Nxe3 18. Rxe3 b6 19. Rdd3 Qd6 20. Qd1 a5 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "2"]
[White "Bosma, Bartele"]
[Black "Plooijer, Johan"]
[Result "1/2-1/2"]
[ECO "D52"]
[PlyCount "80"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Bg5 Bb4+ 5. Nc3 Nbd7 6. e3 c6 7. Rc1 Qa5 8. Bxf6 Nxf6 9. Nd2 0-0 10. a3 Be7 11. Bd3 Qc7 12. Nf3 Re8 13. c5 b6 14. b4 bxc5 15. bxc5 Nd7 16. 0-0 e5 17. e4 exd4 18. Nxd4 Bxc5 19. exd5 Bxd4 20. Nb5 Qf4 21. Nxd4 cxd5 22. Nb5 Rb8 23. Nxa7 Ne5 24. Nxc8 Rexc8 25. Rxc8+ Rxc8 26. Re1 Ng4 27. h3 Qxf2+ 28. Kh1 Ne3 29. Qe2 Qxe2 30. Bxe2 Nc4 31. Bxc4 dxc4 32. Kg1 c3 33. Rc1 f5 34. Kf2 Kf7 35. Ke3 Ke6 36. Kd3 c2 37. Rxc2 Rxc2 38. Kxc2 Kd5 39. Kc3 Ke5 40. h4 g6 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "3"]
[White "Bosma, Bartele"]
[Black "Veel, Elbert"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "49"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nc6 4. cxd4 e6 5. Nf3 d5 6. e5 Bb4+ 7. Nc3 Nge7 8. Bd3 0-0 9. 0-0 Ng6 10. Qc2 Be7 11. a3 Kh8 12. Be3 Nh4 13. Nxh4 Bxh4 14. f4 g6 15. b4 b6 16. Nb5 Be7 17. Qxc6 Bd7 18. Qc2 Bxb5 19. Bxb5 a6 20. Bd3 Rc8 21. Qd2 b5 22. Rac1 f5 23. Rxc8 Qxc8 24. Rc1 Qb7 25. Qc3 1-0

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "6"]
[White "De Waal, Jacobus"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "88"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. e3 g6 4. Bd3 Bg7 5. Nge2 Nc6 6. a3 0-0 7. Ng3 e5 8. dxe5 Nxe5 9. Be2 c5 10. 0-0 Be6 11. f4 Nc6 12. Bd2 d4 13. Nce4 b6 14. Nxf6+ Bxf6 15. Bf3 Rc8 16. e4 Bc4 17. Re1 Bh4 18. b3 Be6 19. Rf1 f5 20. exf5 gxf5 21. Be1 Bf6 22. Qd3 Ne7 23. Nh5 Bh8 24. Bh4 Rc7 25. Rfe1 Qc8 26. Re2 Ng6 27. Rxe6 Qxe6 28. Re1 Qd6 29. Bg5 Bg7 30. c4 h6 31. Bd5+ Kh8 32. Re6 Qd7 33. Rxg6 Qe8 34. Rxg7 Rxg7 35. Nxg7 Kxg7 36. Bh4 Qh5 37. Bf2 Re8 38. h3 Kf6 39. Bf3 Qf7 40. Qd1 Qc7 41. Qd2 a5 42. a4 Rg8 43. Bd5 Re8 44. Qd3 Qxf4 1/2-1/2

[Event "Haarlem ACCOM op2"]
[Site "Haarlem"]
[Date "1986.??.??"]
[Round "4"]
[White "Schermer, Anton"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "D52"]
[PlyCount "32"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. d4 Nf6 4. Bg5 Nbd7 5. Nc3 c6 6. e3 Bb4 7. Qc2 Qa5 8. Nd2 Ne4 9. Ndxe4 dxe4 10. Bh4 0-0 11. Be2 e5 12. 0-0 Bxc3 13. bxc3 f5 14. Rfd1 Nf6 15. Bg3 exd4 16. cxd4 Qd8 1/2-1/2

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "2"]
[White "Bosma, Bartele"]
[Black "Altena, KJ."]
[Result "0-1"]
[ECO "C58"]
[PlyCount "66"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 Nxc4 7. dxc4 h6 8. Nf3 e4 9. Nd4 Bd6 10. h3 0-0 11. Nc3 a6 12. Be3 Re8 13. Qd2 Bd7 14. 0-0 Nh5 15. Nde2 Qh4 16. Qe1 f5 17. f3 Qxe1 18. Raxe1 exf3 19. Rxf3 Rxe3 20. Rxe3 Bc5 21. Nd1 f4 22. b4 Bxe3+ 23. Nxe3 fxe3 24. Nd4 Re8 25. b5 axb5 26. cxb5 Re4 27. c3 Nf6 28. Ne6 Bxe6 29. dxe6 Rxe6 30. Kf1 Kf8 31. Ke2 Nd5 32. Rf1+ Ke7 33. Kd3 Nf4+ 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "4"]
[White "Bosma, Bartele"]
[Black "Brugman, Nico"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "71"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 e5 3. dxe5 Nc6 4. exd6 Bxd6 5. Nf3 Bg4 6. Be2 Nge7 7. Nc3 Ng6 8. Be3 0-0 9. Nd4 Bxe2 10. Ndxe2 Nce5 11. Rb1 c6 12. f4 Ng4 13. Qd2 Qc7 14. e5 Bb4 15. h3 Rad8 16. Qc1 Nh6 17. 0-0 Nf5 18. Bf2 Rfe8 19. Ne4 Qe7 20. c3 Ba5 21. Nd4 Nxd4 22. cxd4 Bb6 23. Nd6 Rf8 24. f5 Nxe5 25. dxe5 Bxf2+ 26. Rxf2 Qxe5 27. Nc4 Qd4 28. Qc3 Qh4 29. b3 Rd5 30. Rbf1 Rfd8 31. Rf4 Qe7 32. f6 Qc5+ 33. Qe3 Qf8 34. fxg7 Qb4 35. Rxf7 Rd3 36. Rf8+ 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "7"]
[White "Bosma, Bartele"]
[Black "De Raad, H."]
[Result "1-0"]
[ECO "B21"]
[PlyCount "39"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e5 5. Bc4 Nf6 6. Nf3 Qc7 7. Qb3 d5 8. Nxd5 Nxd5 9. Bxd5 f6 10. 0-0 Nc6 11. Bd2 Bd6 12. Rac1 Rf8 13. Ne1 Bd7 14. Nd3 Rc8 15. Be3 b6 16. Qd1 Ke7 17. Qh5 h6 18. Qg6 Qd8 19. Qxg7+ Ke8 20. Bxh6 1-0

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "1"]
[White "Bosma, Bartele"]
[Black "Leydes, A."]
[Result "1/2-1/2"]
[ECO "B10"]
[PlyCount "67"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. c4 c6 4. Nc3 cxd5 5. cxd5 Nxd5 6. Qb3 Nb6 7. Nf3 Nc6 8. Bb5 Bd7 9. d4 e6 10. Be3 Bb4 11. 0-0 Bxc3 12. bxc3 0-0 13. Bd3 h6 14. c4 Rc8 15. Bd2 Qc7 16. Rac1 Ne7 17. Bb4 Rfe8 18. Ne5 Nc6 19. Nxc6 Qxc6 20. Rfe1 Qa4 21. Qb2 Bc6 22. Rc3 Bd7 23. Ra3 Qc6 24. Rxa7 Nxc4 25. Bxc4 Qxc4 26. Rxb7 Bc6 27. Rb6 Qd5 28. f3 Ba4 29. Bc5 e5 30. Rd6 Qa8 31. Qf2 Qa5 32. Rd5 exd4 33. Rxe8+ Rxe8 34. h3 1/2-1/2

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "3"]
[White "De Waal, Jacobus"]
[Black "Bosma, Bartele"]
[Result "0-1"]
[ECO "A56"]
[PlyCount "74"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 c5 3. e3 cxd4 4. exd4 g6 5. Nd2 Bg7 6. Nb3 d6 7. Bd3 Nc6 8. Bd2 0-0 9. Ne2 b6 10. 0-0 Qc7 11. Ng3 Ba6 12. Rc1 Nd7 13. Bc3 Bb7 14. h4 h5 15. Ne4 e5 16. d5 Ne7 17. Ng5 Nc5 18. Be2 Nf5 19. g3 Qe7 20. Nxc5 bxc5 21. Qc2 Bh6 22. Qd1 Bxg5 23. hxg5 Qxg5 24. Bd2 Qf6 25. Be3 Nxe3 26. fxe3 Qg5 27. Kf2 f5 28. Rc3 f4 29. exf4 exf4 30. Kg2 Rf7 31. Rh1 Raf8 32. g4 Bc8 33. Kf2 hxg4 34. Qc1 g3+ 35. Kg2 Qe5 36. Qc2 Bf5 37. Bd3 f3+ 0-1

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "6"]
[White "Zwanenbeek, Iwan"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "A08"]
[PlyCount "69"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d3 d5 5. 0-0 c5 6. Nbd2 Nc6 7. a4 0-0 8. c4 e6 9. Rb1 b6 10. cxd5 exd5 11. Nb3 Qd7 12. Bd2 a5 13. Re1 Nb4 14. Bxb4 axb4 15. a5 Qb5 16. axb6 Qxb6 17. e4 Be6 18. e5 Nd7 19. Nbd2 f6 20. exf6 Bxf6 21. Nf1 Ra2 22. Qb3 Rfa8 23. Rxe6 Qxe6 24. Ng5 Qe7 25. Bxd5+ Kg7 26. Bxa8 Rxa8 27. Re1 Qxe1 28. Qf7+ Kh6 29. Qxh7+ Kxg5 30. Qh4+ Kf5 31. Qh3+ Ke5 32. Qxd7 g5 33. g4 Ra1 34. Qf5+ Kd4 35. Qd7+ 1/2-1/2

[Event "Alkmaar ACCOM op-A"]
[Site "Alkmaar"]
[Date "1985.??.??"]
[Round "5"]
[White "Zweers, T."]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "A57"]
[PlyCount "111"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[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 b5 4. cxb5 a6 5. Be3 d6 6. Nc3 g6 7. Bg5 Bg7 8. e4 0-0 9. Qd2 Nbd7 10. Nf3 Qa5 11. bxa6 Bxa6 12. Bxa6 Qxa6 13. Qe2 Qxe2+ 14. Kxe2 Rfb8 15. Rhb1 h6 16. Bc1 Ng4 17. a3 Kh7 18. h3 Nge5 19. Nd2 Nb6 20. f4 Nec4 21. Nxc4 Nxc4 22. Kd3 Na5 23. b4 c4+ 24. Kc2 Nb3 25. Rxb3 cxb3+ 26. Kxb3 Rc8 27. Bb2 Ra7 28. Nb5 Rb7 29. Bxg7 Kxg7 30. Nd4 Rbc7 31. Nc6 e6 32. Re1 Re8 33. Rc1 exd5 34. exd5 Re3+ 35. Rc3 Re2 36. g3 Rc8 37. b5 Re1 38. Kb4 Ra8 39. b6 Rb1+ 40. Rb3 Rxb3+ 41. Kxb3 Ra6 42. Kc4 Rxb6 43. a4 g5 44. fxg5 hxg5 45. a5 Rb1 46. a6 f5 47. a7 Ra1 48. Kb4 Rxa7 49. Nxa7 f4 50. gxf4 gxf4 51. Kc3 Kf6 52. Nc6 Kf5 53. Kd3 f3 54. Ke3 f2 55. Kxf2 Ke4 56. Ne7 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Bosma, Bartele"]
[Black "Dagelet, H."]
[Result "1-0"]
[ECO "B21"]
[PlyCount "59"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 d6 7. 0-0 g6 8. Qe2 Bg7 9. Rd1 Nge7 10. Bf4 e5 11. Bg5 h6 12. Be3 Be6 13. Bb5 0-0 14. Qd2 Nc8 15. Bxh6 Nd4 16. Nxd4 exd4 17. Bxg7 Kxg7 18. Qxd4+ Qf6 19. Qxf6+ Kxf6 20. Rac1 a6 21. Be2 Ke5 22. g3 a5 23. f3 Ne7 24. Rc2 f5 25. b3 d5 26. exd5 Bxd5 27. Nxd5 Nxd5 28. Rc5 Rad8 29. Bc4 f4 30. Rcxd5+ 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Bosma, Bartele"]
[Black "Duinmaijer, Martin"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "90"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d5 4. exd5 Qxd5 5. cxd4 Nc6 6. Nf3 e5 7. Nc3 Bb4 8. a3 Bxc3+ 9. bxc3 exd4 10. Nxd4 Nxd4 11. Qxd4 Nf6 12. Qxd5 Nxd5 13. Bb5+ Bd7 14. Bxd7+ Kxd7 15. 0-0 Nxc3 16. Bb2 Rac8 17. Kh1 f6 18. Rac1 Na4 19. Rcd1+ Kc7 20. Bc1 g5 21. Be3 Kb8 22. Rd4 Nb6 23. Rd6 Rc6 24. Rxc6 bxc6 25. Rb1 Kc7 26. Bc5 Re8 27. g3 f5 28. Be3 h6 29. a4 Nxa4 30. Ra1 Re4 31. Bxa7 c5 32. Rc1 Kc6 33. Bb8 Re8 34. Rb1 Re2 35. f4 Rb2 36. Rxb2 Nxb2 37. Be5 Nd3 38. Bg7 gxf4 39. gxf4 h5 40. Kg2 Nxf4+ 41. Kf3 Ne6 42. Bb2 Kd5 43. Kg3 Ke4 44. Kh4 f4 45. Kxh5 f3 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Bosma, Bartele"]
[Black "Van der Meiden, Dirk"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "86"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 Nxc3 7. dxc3 Bxc5 8. Qg4 Rg8 9. Bf4 Nc6 10. Nf3 Qe7 11. 0-0 d5 12. Bd3 g6 13. Bg5 Qd7 14. Rfe1 Be7 15. Qh4 h5 16. Bb5 Bxg5 17. Qxg5 Qe7 18. Qg3 Bd7 19. a4 0-0-0 20. Nd4 Nxd4 21. cxd4 Bxb5 22. axb5 Qb4 23. Qc3 Qxb5 24. Rxa7 c6 25. Qa3 Rge8 26. Rc1 Kb8 27. Rc3 Qb6 28. Ra8+ Kc7 29. Ra7 Qxd4 30. Qa5+ Qb6 31. Rxb7+ Kxb7 32. Qa4 Ra8 33. Qf4 Ra1+ 34. Rc1 Rxc1+ 35. Qxc1 Qd4 36. h3 Ra8 37. Qg5 Ra1+ 38. Kh2 Qc5 39. Qf6 d4 40. Qxf7+ Kb6 41. Qxe6 Re1 42. f4 g5 43. Qf6 gxf4 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Van Egmond, Joost"]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "C84"]
[PlyCount "80"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Nf6 6. 0-0 Be7 7. d4 d6 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 c5 11. c4 Bd7 12. Nc3 Rb8 13. Rd1 0-0 14. Nd5 Nxd5 15. Rxd5 Qc7 16. Qh5 Bd6 17. Qd1 Rb6 18. cxb5 axb5 19. Be3 Rc6 20. Bxc5 Rxc5 21. Rxd6 Bc6 22. f3 Rc8 23. Rd2 Be8 24. Qe1 Qb6 25. Kh1 Qc7 26. Rad1 g6 27. h3 Kg7 28. Qg3 Rc1 29. Kh2 f6 30. Qf2 b4 31. Rxc1 Qxc1 32. Qa7+ Rc7 33. Qb8 Rc8 34. Qd6 Rc7 35. Rd1 Qc5 36. Qe6 Qf8 37. Rd8 Re7 38. Qc8 Kh6 39. Ba4 Qf7 40. Rxe8 Rxe8 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Van der Meiden, Albert"]
[Black "Bosma, Bartele"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "94"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. 0-0 d6 7. a3 Ba5 8. b4 Bb6 9. Nxc3 Bg4 10. Qb3 Qd7 11. e5 Be6 12. Bxe6 Qxe6 13. Qxe6+ fxe6 14. exd6 cxd6 15. Ne4 Bc7 16. Nfg5 Ke7 17. Bb2 Nf6 18. Rfe1 e5 19. Rad1 a6 20. Nc3 Rac8 21. Nge4 Rhd8 22. h3 h6 23. Kh1 Kf8 24. g4 Nxe4 25. Rxe4 Ne7 26. Nd5 Nxd5 27. Rxd5 Re8 28. f3 Re6 29. Rc4 Ree8 30. a4 Bb8 31. Rxc8 Rxc8 32. Rd2 Ke7 33. Kg2 Rc4 34. b5 Rxa4 35. bxa6 Rxa6 36. Kh1 Ra2 37. Bc3 Rxd2 38. Bxd2 b5 39. f4 e4 40. f5 d5 41. Kg2 Bd6 42. Bc3 Kf7 43. Bd4 b4 44. Kf2 b3 45. Bb2 Bc5+ 46. Ke2 d4 47. Kd1 Kf6 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1984.??.??"]
[Round "?"]
[White "Van der Wakker, Peter"]
[Black "Bosma, Bartele"]
[Result "1/2-1/2"]
[ECO "C89"]
[PlyCount "61"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d5 9. d3 dxe4 10. dxe4 Qxd1 11. Bxd1 Rd8 12. Bb3 Bg4 13. Nbd2 h6 14. h3 Bh5 15. Nh2 Bg6 16. Bc2 Bd6 17. Ndf3 Ne7 18. Nf1 c5 19. Ng3 c4 20. Be3 Ned5 21. Rac1 Nxe3 22. Rxe3 Bc5 23. Ree1 Nh5 24. Nxh5 Bxh5 25. g4 Bg6 26. Nxe5 Rd2 27. Rf1 Bh7 28. Nf3 Re2 29. Kg2 Bxe4 30. Bxe4 Rxe4 31. Rfe1 1/2-1/2

[Event "Alkmaar op-C"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Bosma, Bartele"]
[Black "Grondsma, Henk"]
[Result "0-1"]
[ECO "B56"]
[PlyCount "40"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 e5 5. Nb3 Nf6 6. Nc3 Be6 7. Be3 Nc6 8. Bd3 Be7 9. Qe2 0-0 10. 0-0-0 a6 11. h3 Rc8 12. f4 Bxb3 13. axb3 exf4 14. Bxf4 Qa5 15. Qd2 Nb4 16. Na4 b5 17. c3 bxa4 18. Bc4 axb3 19. Qd4 Qa1+ 20. Kd2 Qxb2+ 0-1

[Event "Alkmaar op-C"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Dammers, Udo"]
[Black "Bosma, Bartele"]
[Result "0-1"]
[ECO "C89"]
[PlyCount "38"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d5 9. exd5 e4 10. dxc6 exf3 11. Qxf3 Bg4 12. Qg3 Bd6 13. Qh4 Re8 14. Re3 Bf4 15. Rxe8+ Qxe8 16. f3 Bf5 17. Bxf7+ Kxf7 18. Kf2 g5 19. Qh6 Bd3 0-1

[Event "Alkmaar op-C"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Kuys, N."]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "A85"]
[PlyCount "113"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. Nf3 d6 5. e3 Be7 6. Be2 a6 7. a4 Nc6 8. d5 Nb4 9. a5 c5 10. b3 b6 11. axb6 Qxb6 12. dxe6 Bxe6 13. Na2 Nc6 14. Nd2 0-0 15. Bf3 Rab8 16. Bb2 Ne5 17. Nc1 Nxf3+ 18. Nxf3 Ra8 19. Qc2 Qb7 20. 0-0 Ne4 21. Ne2 Bd7 22. Nf4 Nf6 23. Rfd1 Qb8 24. Nd5 Bd8 25. Bc3 a5 26. Nxf6+ Bxf6 27. Rxa5 Rxa5 28. Bxa5 Bc6 29. Ne1 h6 30. Bc3 Be5 31. Nd3 Be4 32. f3 Bxd3 33. Rxd3 Bf6 34. Rd5 Bxc3 35. Qxc3 Rf6 36. Qd3 Qf8 37. e4 fxe4 38. fxe4 Re6 39. e5 Qe7 40. Rxd6 Rxd6 41. Qxd6 Qxd6 42. exd6 Kf8 43. Kf2 Ke8 44. Ke3 Kd7 45. Kd3 Kxd6 46. Kc3 Ke6 47. b4 cxb4+ 48. Kxb4 Kd6 49. h4 h5 50. c5+ Kc6 51. Kc4 Kd7 52. Kd5 Kc7 53. c6 Kd8 54. Kd6 Kc8 55. c7 g5 56. hxg5 h4 57. g6 1-0

[Event "Alkmaar op-C"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Ooyevaar"]
[Black "Bosma, Bartele"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "59"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Nc3 Bb4 6. Qe2+ Be6 7. Qb5+ Nc6 8. Ne5 Bxc3+ 9. bxc3 Bd7 10. Nxd7 Qxd7 11. Qxb7 0-0 12. Bb5 Rfb8 13. Qxc6 Rxb5 14. Qxa8+ Ne8 15. 0-0 f6 16. Re1 Kf7 17. Qxa7 Nd6 18. Ba3 Kg6 19. Bxd6 Qxd6 20. Rab1 Rxb1 21. Rxb1 Qc6 22. Qc5 Qa4 23. Rb2 Qe8 24. Rb1 Qa4 25. Qxc7 Qxc2 26. Rf1 Qxa2 27. h3 Qd2 28. Qa5 h6 29. Qxd5 Qxc3 30. Qe4+ 1-0

