[Event "NED corr"]
[Site "Netherlands"]
[Date "1980.??.??"]
[Round "?"]
[White "Van Meegen, RC."]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "C51"]
[PlyCount "70"]
[EventDate "1980.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 Na5 7. Nxe5 Nxc4 8. Nxc4 d5 9. exd5 Qxd5 10. Ne3 Qd8 11. 0-0 Nf6 12. Nd2 0-0 13. Rb1 c5 14. Qb3 b6 15. d5 Ne8 16. Ne4 Nd6 17. Nxd6 Bxd6 18. Nc4 Bf5 19. Rb2 Bd3 20. Rd1 Bxh2+ 21. Kxh2 Qh4+ 22. Kg1 Bxc4 23. Qc2 Rfe8 24. Qf5 f6 25. g3 Qe4 26. Qxe4 Rxe4 27. d6 Rd8 28. f3 Re6 29. Rbd2 Kf7 30. Kf2 Ke8 31. g4 Kd7 32. Re1 Rxe1 33. Kxe1 Re8+ 34. Kd1 Re6 35. a3 Bb3+ 0-1

[Event "Ost Westfalen Lippe-ch"]
[Site "Detmold"]
[Date "1965.??.??"]
[Round "5"]
[White "Bonne, Marck"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "D25"]
[PlyCount "113"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. Bxc4 e6 6. 0-0 Nbd7 7. Nc3 Bd6 8. e4 e5 9. dxe5 Nxe5 10. Be2 Ng6 11. Bg5 c6 12. h3 Bxf3 13. Bxf3 h6 14. Be3 0-0 15. Qc2 Re8 16. g3 Nf8 17. Bg2 N8d7 18. Bd4 Be5 19. Bxe5 Nxe5 20. Rad1 Qb6 21. Na4 Qc7 22. b4 Qe7 23. f4 Ned7 24. e5 Nh7 25. Nc5 Nxc5 26. bxc5 f6 27. Rfe1 Rad8 28. Rd6 fxe5 29. Qc4+ Qf7 30. Qxf7+ Kxf7 31. fxe5 Nf8 32. Rb1 Rb8 33. Rf1+ Kg8 34. Re1 Ne6 35. Rc1 Ng5 36. Rb1 Rxe5 37. Rxc6 Ne6 38. Rxe6 Rxe6 39. Bd5 Kf7 40. Bxe6+ Kxe6 41. Rd1 Ke7 42. Kf2 Rf8+ 43. Kg2 Rf7 44. Re1+ Kd7 45. Re5 Kc6 46. h4 Kb5 47. g4 Kc4 48. Rh5 Kd4 49. g5 Rc7 50. gxh6 gxh6 51. Rxh6 Rxc5 52. Rh7 Rb5 53. Kg3 Rb2 54. Rf7 a5 55. h5 b5 56. h6 Rb1 57. h7 1-0

[Event "Ost Westfalen Lippe-ch"]
[Site "Detmold"]
[Date "1965.??.??"]
[Round "7"]
[White "Mallee, Ralph"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "B90"]
[PlyCount "36"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 Nc6 7. Be3 Nxd4 8. Qxd4 e5 9. Qd2 Be6 10. 0-0-0 Rc8 11. a3 Be7 12. f3 0-0 13. g4 Rc6 14. Nd5 Nd7 15. Kb1 Nc5 16. Bd3 b5 17. h4 Nxd3 18. Qxd3 Bxd5 1/2-1/2

[Event "Ost Westfalen Lippe-ch"]
[Site "Detmold"]
[Date "1965.??.??"]
[Round "3"]
[White "Seppelt, Alfred"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "B90"]
[PlyCount "108"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nde2 Be7 8. g4 Be6 9. Bg2 Nc6 10. Be3 Rb8 11. Ng3 0-0 12. Nf5 Ne8 13. Qd2 b5 14. h4 b4 15. Nd5 Bxd5 16. Qxd5 Rc8 17. g5 Nd4 18. Bxd4 exd4 19. Nxd4 Rc5 20. Qb3 Nc7 21. f4 d5 22. 0-0-0 Ne6 23. Ne2 Qc7 24. e5 Rc8 25. Rd2 d4 26. Be4 Ra5 27. Kb1 Nc5 28. Qf3 Rxa2 29. Kxa2 Qa5+ 30. Kb1 b3 31. cxb3 Qxd2 32. Nc1 Rb8 33. Bc2 a5 34. Rd1 Qb4 35. Nd3 Qb6 36. Nxc5 Bxc5 37. Qe4 g6 38. e6 Qb7 39. exf7+ Qxf7 40. Qe5 Rc8 41. f5 Qe8 42. Qxe8+ Rxe8 43. fxg6 hxg6 44. Bxg6 Re3 45. Rc1 Bf8 46. Rc4 Rxb3 47. Rxd4 Rb4 48. Rxb4 Bxb4 49. Be4 Be1 50. h5 Bd2 51. g6 Kg7 52. Kc2 Bh6 53. Kb3 Bd2 54. Ka4 Be1 1/2-1/2

[Event "Ost Westfalen Lippe-ch"]
[Site "Detmold"]
[Date "1965.??.??"]
[Round "6"]
[White "Vlagsma, Chris"]
[Black "Kunsztowicz, Uwe Wilhelm"]
[Result "0-1"]
[ECO "A48"]
[PlyCount "106"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 0-0 5. 0-0 d6 6. e4 Nbd7 7. c3 e5 8. Nbd2 Re8 9. Re1 b6 10. Nf1 Bb7 11. d5 c6 12. c4 c5 13. Ng3 Rf8 14. Bd2 Kh8 15. h4 Bc8 16. Nh2 Ng8 17. h5 Nb8 18. Qc2 Na6 19. a3 Nc7 20. b4 f6 21. hxg6 hxg6 22. Nhf1 Ne7 23. Ne3 Rf7 24. bxc5 dxc5 25. a4 a5 26. Rab1 Ne8 27. Rb2 Bd7 28. Reb1 Nc8 29. Be2 Ned6 30. Bg4 Bxg4 31. Nxg4 f5 32. exf5 gxf5 33. Nh2 Qh4 34. Rc1 e4 35. Rb3 Kg8 36. Ngf1 Bd4 37. Rg3+ Rg7 38. Rxg7+ Kxg7 39. g3 Qh3 40. Bf4 Ra7 41. Rb1 Nf7 42. Qe2 Be5 43. Qd2 Ncd6 44. Rc1 Re7 45. f3 Bd4+ 46. Ne3 exf3 47. Nhf1 Ne5 48. Qh2 Qxh2+ 49. Nxh2 Ng4 50. Nhxg4 fxg4 51. Bxd6 Rxe3 52. Kf1 Re2 53. Rb1 Rh2 0-1

[Event "Ost Westfalen Lippe-ch"]
[Site "Detmold"]
[Date "1965.??.??"]
[Round "4"]
[White "Vlagsma, Chris"]
[Black "Mulkers, Willy"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "55"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. f4 e5 3. Nf3 d6 4. Bc4 Bg4 5. fxe5 Nc6 6. exd6 Bxd6 7. 0-0 Nf6 8. Nc3 0-0 9. d3 Ne5 10. b3 Nh5 11. Qe1 Nxf3+ 12. gxf3 Bh3 13. Rf2 Nf4 14. Bxf4 Bxf4 15. Nd5 Qh4 16. Nxf4 Qxf4 17. Qd2 Qxd2 18. Rxd2 Rad8 19. c3 Rd6 20. Kf2 b5 21. Bd5 Be6 22. c4 bxc4 23. dxc4 a5 24. Rad1 Rfd8 25. Ke3 g5 26. Bxe6 Rxd2 27. Bxf7+ Kxf7 28. Rxd2 1-0

[Event "Ost Westfalen Lippe-ch"]
[Site "Detmold"]
[Date "1965.??.??"]
[Round "2"]
[White "Vlagsma, Chris"]
[Black "Speer, Albrecht"]
[Result "0-1"]
[ECO "B44"]
[PlyCount "28"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Be3 Nf6 6. Bd3 e5 7. Nxc6 dxc6 8. f3 Be6 9. 0-0 Bd6 10. Nc3 0-0 11. Qe2 Ne8 12. a3 Qe7 13. Qf2 Nc7 14. Bxa7 Rxa7 0-1

[Event "Ost Westfalen Lippe-ch"]
[Site "Detmold"]
[Date "1965.??.??"]
[Round "1"]
[White "Vlagsma, Chris"]
[Black "Vreeken, Corry"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "91"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. f4 e6 3. Nf3 d5 4. Bb5+ Nc6 5. Bxc6+ bxc6 6. Nc3 Bd6 7. d3 Ne7 8. 0-0 0-0 9. Qe1 Ng6 10. e5 Be7 11. Na4 Ba6 12. b3 c4 13. bxc4 dxc4 14. d4 Rb8 15. Be3 Bb4 16. c3 Qa5 17. cxb4 Qxa4 18. a3 Ne7 19. Ng5 Qc2 20. Rf2 Qg6 21. Bd2 Nf5 22. Bc3 Rbd8 23. Rd1 Rd5 24. a4 Rfd8 25. Rfd2 Qh5 26. Ne4 Qg4 27. Qf2 h5 28. Ra1 h4 29. Nc5 Bc8 30. h3 Qg6 31. Rad1 Ng3 32. Qf3 f6 33. Qg4 Qxg4 34. hxg4 fxe5 35. fxe5 Kh7 36. Rf2 a5 37. Rfd2 axb4 38. Bxb4 Rxd4 39. Rxd4 Rxd4 40. Rxd4 Ne2+ 41. Kf2 Nxd4 42. a5 Kg6 43. Ne4 c5 44. Nxc5 Nc6 45. Bc3 Nb8 46. Ke3 1/2-1/2

[Event "Detmold"]
[Site "Detmold"]
[Date "1964.??.??"]
[Round "1"]
[White "Bialas, Wolfram"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "B77"]
[PlyCount "91"]
[EventDate "1964.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. Bc4 Nd7 10. 0-0-0 Nb6 11. Bb3 Na5 12. h4 Nbc4 13. Qd3 Nxe3 14. Qxe3 Nxb3+ 15. cxb3 h6 16. g4 Kh7 17. Qd3 a6 18. Nd5 Bd7 19. Kb1 Rc8 20. Rhg1 Bc6 21. h5 Bxd5 22. exd5 Bxd4 23. Qxd4 g5 24. Rge1 Rc7 25. f4 Rg8 26. f5 Qf8 27. f6 exf6 28. Rf1 Qg7 29. Rxf6 Rd8 30. Rdf1 Re7 31. a3 Kg8 32. Qb6 Red7 33. Rxf7 Rxf7 34. Rxf7 Qxf7 35. Qxd8+ Qf8 36. Qd7 b6 37. Qc7 b5 38. Ka2 Qf4 39. Qc8+ Kg7 40. Qxa6 Qxg4 41. Qxd6 Qf4 42. Qg6+ Kf8 43. Qxh6+ Ke8 44. Qe6+ Kd8 45. h6 g4 46. h7 1-0

[Event "Detmold"]
[Site "Detmold"]
[Date "1964.??.??"]
[Round "4"]
[White "Clemens, Christian"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "A93"]
[PlyCount "80"]
[EventDate "1964.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 f5 2. d4 Nf6 3. g3 e6 4. Bg2 Be7 5. 0-0 0-0 6. c4 d5 7. Qc2 c6 8. b3 Ne4 9. Bb2 Na6 10. a3 Nc7 11. Ne5 Bd7 12. f3 Nd6 13. e3 Be8 14. Nd2 g5 15. e4 Bg6 16. Rfe1 Kg7 17. Re2 Nf7 18. exd5 exd5 19. b4 Nxe5 20. dxe5 Ne6 21. Nb3 f4 22. Qc3 dxc4 23. Qxc4 Bd3 24. Qxe6 Bxe2 25. Nd4 Bd3 26. Qb3 Bf5 27. g4 Bc8 28. e6 Bf6 29. Rd1 Kh8 30. Kh1 Qd5 31. e7 Re8 32. Qc2 Qf7 33. Bf1 Qxe7 34. Bc4 Rf8 35. Bc3 Bd7 36. Re1 Qg7 37. Re4 Rae8 38. Rxe8 Rxe8 39. Qd2 Bxg4 40. fxg4 Rd8 0-1

[Event "Detmold"]
[Site "Detmold"]
[Date "1964.??.??"]
[Round "6"]
[White "Dietrich, Norbert"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "B09"]
[PlyCount "60"]
[EventDate "1964.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 Nbd7 7. 0-0 e5 8. dxe5 dxe5 9. f5 c6 10. Kh1 Qe7 11. fxg6 hxg6 12. Bg5 Qe6 13. Qe1 Qg4 14. h3 Qh5 15. Qg3 Re8 16. Rae1 Nh7 17. Be3 Nhf6 18. Ng5 Nf8 19. Be2 Qh8 20. Bc4 Be6 21. Bxe6 Nxe6 22. Nxe6 Rxe6 23. Rd1 b6 24. Bg5 Rf8 25. Rd2 Bh6 26. Bxf6 Rxf6 27. Rxf6 Qxf6 28. Rd1 Qe6 29. Qh4 Kg7 30. Rd8 g5 0-1

[Event "Detmold"]
[Site "Detmold"]
[Date "1964.??.??"]
[Round "3"]
[White "Mulkers, Willy"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "46"]
[EventDate "1964.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 Nf6 6. e5 Ne4 7. 0-0 d5 8. exd6 Nxd6 9. Bb3 Bg4 10. cxd4 0-0 11. Be3 Nf5 12. d5 Ne5 13. Nbd2 Nh4 14. Bf4 Nexf3+ 15. Nxf3 Bb4 16. Rc1 Nxf3+ 17. gxf3 Bh3 18. Qd4 Bxf1 19. Qxb4 Bh3 20. Rxc7 Qf6 21. Qd2 Rac8 22. d6 Rxc7 23. dxc7 Re8 0-1

[Event "Detmold"]
[Site "Detmold"]
[Date "1964.??.??"]
[Round "5"]
[White "Vlagsma, Chris"]
[Black "Bachmann, Karlheinz"]
[Result "1/2-1/2"]
[ECO "B20"]
[PlyCount "29"]
[EventDate "1964.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 g6 3. g3 Bg7 4. Bg2 Nc6 5. c3 d6 6. 0-0 Bd7 7. d4 Qc8 8. Re1 h5 9. Be3 cxd4 10. cxd4 h4 11. Nbc3 hxg3 12. hxg3 Bh3 13. Bh1 Bg4 14. Bg2 Bh3 15. Bh1 1/2-1/2

[Event "Detmold"]
[Site "Detmold"]
[Date "1964.??.??"]
[Round "2"]
[White "Vlagsma, Chris"]
[Black "Speer, Albrecht"]
[Result "1/2-1/2"]
[ECO "B44"]
[PlyCount "86"]
[EventDate "1964.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Be3 Nf6 6. Bd3 Be7 7. 0-0 0-0 8. Nc3 d5 9. exd5 Nxd5 10. Nxd5 exd5 11. c3 Bf6 12. Be2 Re8 13. Re1 Bg5 14. Bxg5 Qxg5 15. Nf3 Qf5 16. Qb3 Rd8 17. Rad1 b6 18. Nd4 Nxd4 19. Rxd4 Be6 20. Red1 Rd6 21. Bf3 Re8 22. h3 g6 23. Qb5 Re7 24. c4 Qf6 25. cxd5 Bxh3 26. Qb4 Bf5 27. Rf4 a5 28. Qa4 Qxb2 29. Qc4 Qe5 30. Rfd4 h5 31. R4d2 Qf6 32. Rc1 Qg5 33. Rdd1 Bg4 34. Bxg4 hxg4 35. Qd4 Re8 36. Rc6 Red8 37. Rxd6 Rxd6 38. Re1 Qf6 39. Re5 Kg7 40. a4 Kg8 41. g3 Kg7 42. Kh2 Kg8 43. Kg2 Kg7 1/2-1/2

[Event "Detmold"]
[Site "Detmold"]
[Date "1964.??.??"]
[Round "7"]
[White "Vlagsma, Chris"]
[Black "Thompsen, AD."]
[Result "1-0"]
[ECO "D05"]
[PlyCount "63"]
[EventDate "1964.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. e3 Nf6 4. Bd3 e6 5. 0-0 Nbd7 6. Nbd2 Qc7 7. Re1 c5 8. c3 Bd6 9. e4 dxe4 10. Nxe4 Nxe4 11. Rxe4 Nf6 12. Rh4 c4 13. Qa4+ Bd7 14. Qxc4 Bc6 15. Bd2 0-0-0 16. Re1 h6 17. Ne5 Bxe5 18. Rxe5 g5 19. Rh3 Nd7 20. Re1 Nb6 21. Qc5 Na4 22. Qa3 Kb8 23. b3 Nb6 24. c4 Bd7 25. Rf3 f5 26. Ba5 Qc8 27. Rfe3 Bc6 28. Rxe6 Rxd4 29. Bxf5 Bd7 30. Rd6 Re8 31. Rxe8 Qxe8 32. Rxd4 1-0

[Event "YUG Team Cup"]
[Site "Portoroz"]
[Date "1961.??.??"]
[Round "1"]
[White "Karaklajic, Nikola"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "B42"]
[PlyCount "89"]
[EventDate "1961.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "YUG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. Qe2 d6 8. c4 g6 9. b3 Bg7 10. Bb2 Nc6 11. Nxc6 Qxc6 12. Qf3 e5 13. Nc3 Be6 14. h4 0-0 15. Rad1 Rad8 16. Qe3 Nh5 17. Ne2 Nf4 18. Qd2 Bh6 19. Nxf4 Bxf4 20. Qc2 f5 21. exf5 gxf5 22. Be2 Rd7 23. Bf3 Qc7 24. Bd5 Rf6 25. Qd3 Rg7 26. g3 Qf7 27. Kh2 e4 28. Bxe6 Rxe6 29. Qd5 Be5 30. Bxe5 dxe5 31. Qc5 h5 32. Rd8+ Kh7 33. Rf8 Qe7 34. Qxe7 Rgxe7 35. Rxf5 Kg6 36. Rf8 Rd6 37. Re1 Rd2 38. Rxe4 Rxa2 39. Kg2 a5 40. g4 hxg4 41. Rxg4+ Kh7 42. Rf5 Rg7 43. Rh5+ Kg8 44. Rxg7+ Kxg7 45. Rxe5 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1954.01.??"]
[Round "4"]
[White "Vlagsma, Chris"]
[Black "Beni, Alfred"]
[Result "1-0"]
[ECO "C65"]
[PlyCount "127"]
[EventDate "1954.01.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Qe2 d6 5. c3 Bd7 6. d3 Be7 7. Nbd2 a6 8. Ba4 b5 9. Bc2 Nh5 10. Nf1 g6 11. g3 0-0 12. Bh6 Re8 13. Ne3 Bf8 14. Bxf8 Rxf8 15. d4 exd4 16. Nxd4 Nxd4 17. cxd4 Bc6 18. 0-0-0 Re8 19. d5 Bd7 20. Qd2 a5 21. Kb1 b4 22. h4 Qb8 23. Bd3 c5 24. g4 Nf6 25. f3 Bb5 26. Bxb5 Qxb5 27. Nf5 Re5 28. Qh6 Ne8 29. h5 Ra7 30. hxg6 fxg6 31. Ng3 c4 32. Qe3 Rc7 33. Qd4 c3 34. Rc1 Rf7 35. Rhf1 a4 36. Ka1 cxb2+ 37. Qxb2 Nc7 38. Ne2 a3 39. Qc2 Na6 40. Nd4 Qb6 41. Ne6 Nc7 42. f4 Rxe6 43. dxe6 Qd4+ 44. Kb1 Nxe6 45. Rfd1 Qb6 46. Qc8+ Nf8 47. Qc4 Qf2 48. Qxb4 Qxf4 49. Rf1 Qxg4 50. Rxf7 Kxf7 51. Rf1+ Ke7 52. Qd4 Ne6 53. Qa7+ Kd8 54. Qb8+ Ke7 55. Qb7+ Kd8 56. Qb8+ Ke7 57. Qb7+ Kd8 58. e5 dxe5 59. Rc1 Qf5+ 60. Ka1 Nd4 61. Qb8+ Ke7 62. Rc7+ Ke6 63. Qg8+ Kf6 64. Qd8+ 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1954.??.??"]
[Round "7"]
[White "Bouwmeester, Hans"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "A90"]
[PlyCount "27"]
[EventDate "1954.01.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 c6 4. Bg2 Bd6 5. Nd2 f5 6. Ngf3 Nf6 7. 0-0 0-0 8. b3 Nbd7 9. Bb2 Qe8 10. Qc1 Qe7 11. Ne5 Ne4 12. Ndf3 Ndf6 13. Ne1 Bd7 14. f3 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1954.??.??"]
[Round "5"]
[White "Klaeger, Lutz"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "E49"]
[PlyCount "55"]
[EventDate "1954.01.02"]
[EventType "tourn"]
[EventRounds "9"]
[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 Bb4 4. e3 0-0 5. Bd3 c5 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Ne2 Nc6 10. 0-0 Be6 11. a4 c4 12. Bc2 Ne8 13. Nf4 Qd7 14. e4 Nc7 15. Ba3 Rfd8 16. f3 Ne7 17. Qe1 Ng6 18. Nh5 Ne8 19. Qe3 Rac8 20. Rae1 f6 21. Ng3 Qc7 22. f4 Nf8 23. exd5 Bxd5 24. Nf5 Ng6 25. Qh3 Nxf4 26. Rxf4 Qxf4 27. Ne7+ Kf7 28. Nxd5 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1954.??.??"]
[Round "2"]
[White "Van Scheltinga, Theo D"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "E44"]
[PlyCount "65"]
[EventDate "1954.01.02"]
[EventType "tourn"]
[EventRounds "9"]
[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 Bb4 4. e3 0-0 5. Nge2 d5 6. a3 Bxc3+ 7. Nxc3 b6 8. cxd5 exd5 9. b4 Bf5 10. Be2 Nc6 11. 0-0 Ne7 12. b5 Ne4 13. Bd2 Re8 14. Na2 c5 15. bxc6 Nxc6 16. Rc1 Re6 17. Bb5 Nxd2 18. Qxd2 Na5 19. Rc3 a6 20. Be2 b5 21. Qc1 Nc4 22. Nb4 Rh6 23. g3 Qd7 24. f3 Re6 25. Bxc4 bxc4 26. e4 dxe4 27. d5 Ree8 28. Rxc4 exf3 29. Rxf3 Be4 30. Rf4 f5 31. Rc7 Rac8 32. Rxd7 Rxc1+ 33. Rf1 1/2-1/2

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1954.??.??"]
[Round "1"]
[White "Vlagsma, Chris"]
[Black "Kramer, Haije J"]
[Result "1/2-1/2"]
[ECO "A48"]
[PlyCount "44"]
[EventDate "1954.01.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Bd3 d6 6. Nbd2 Nbd7 7. h3 Re8 8. e4 e5 9. dxe5 dxe5 10. Be3 Nh5 11. g3 Nf8 12. Qe2 Ne6 13. c3 Qe7 14. Bc2 Bd7 15. 0-0 a6 16. Kh2 Rad8 17. a4 Rf8 18. Nc4 f6 19. b4 Kh8 20. Rfd1 Bc8 21. Rxd8 Rxd8 22. Rd1 b6 1/2-1/2

[Event "Detmold Pfingstturnier"]
[Site "Detmold"]
[Date "1952.??.??"]
[Round "3"]
[White "Vlagsma, Chris"]
[Black "Babel, August"]
[Result "1-0"]
[ECO "B91"]
[PlyCount "49"]
[EventDate "1952.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 g6 7. Bg2 Bd7 8. h3 Bg7 9. Be3 0-0 10. 0-0 a6 11. Nd5 Na5 12. b3 Nxd5 13. exd5 b5 14. Qd2 Re8 15. Rfe1 Rc8 16. Re2 h5 17. Rae1 Kh7 18. Bg5 Qb6 19. c3 e5 20. dxe6 fxe6 21. Nxe6 Bxc3 22. Qf4 Bxe6 23. Rxe6 Rf8 24. Re7+ Kh8 25. Bf6+ 1-0

[Event "Detmold Pfingstturnier"]
[Site "Detmold"]
[Date "1952.??.??"]
[Round "1"]
[White "Vlagsma, Chris"]
[Black "Van Vloten, GW."]
[Result "1/2-1/2"]
[ECO "B18"]
[PlyCount "54"]
[EventDate "1952.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 Bxd3 8. Qxd3 Ngf6 9. 0-0 e6 10. Re1 Be7 11. c4 0-0 12. Bd2 c5 13. Bc3 Rc8 14. Rad1 cxd4 15. Bxd4 Bc5 16. Ne4 Bxd4 17. Qxd4 Nxe4 18. Qxe4 Qc7 19. h3 Rfd8 20. Nd4 Nf6 21. Qe2 Qb6 22. Nb5 a6 23. Na3 Rxd1 24. Rxd1 Rd8 25. Rd3 Rxd3 26. Qxd3 h6 27. b3 Qb4 1/2-1/2

[Event "Detmold Pfingstturnier"]
[Site "Detmold"]
[Date "1952.??.??"]
[Round "6"]
[White "Von Baudissin, Georg Graf"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "E56"]
[PlyCount "130"]
[EventDate "1952.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. 0-0 Nc6 8. a3 cxd4 9. axb4 dxc3 10. bxc3 dxc4 11. Bxc4 Qc7 12. Qe2 e5 13. e4 Bg4 14. Bb3 Ne7 15. Bd2 b5 16. h3 Bxf3 17. Qxf3 Rfd8 18. Rfd1 Rd6 19. Bg5 Rc6 20. Ra3 h6 21. Bxf6 Rxf6 22. Qe3 a5 23. bxa5 Rxa5 24. Rxa5 Qxa5 25. Qc5 Ng6 26. c4 Qb6 27. Qxb6 Rxb6 28. Rd8+ Nf8 29. cxb5 Rxb5 30. Bd5 Rc5 31. Re8 Rc7 32. Rxe5 g6 33. Re8 Kg7 34. Rb8 h5 35. h4 Nd7 36. Rb7 Rxb7 37. Bxb7 Ne5 38. Kh2 Ng4+ 39. Kg3 Kf6 40. Bc8 Ne5 41. Bh3 Nd3 42. f4 Nb4 43. Kf3 Nc6 44. Ke3 Ne7 45. Bd7 Ng8 46. Kd4 Nh6 47. Kd5 Ke7 48. Bh3 Ng8 49. Ke5 Nf6 50. f5 Nh7 51. Kf4 Kf6 52. e5+ Kg7 53. fxg6 fxg6 54. Ke4 Kf7 55. g3 g5 56. Kf5 gxh4 57. gxh4 Nf8 58. Kg5 Ng6 59. e6+ Kg7 60. Bf5 Ne5 61. e7 Kf7 62. Kxh5 Kxe7 63. Kh6 Kf7 64. h5 Kg8 65. Bc8 Nc6 1/2-1/2

[Event "BEL-NED m"]
[Site "Antwerp"]
[Date "1950.04.16"]
[Round "2.6"]
[White "Janssens, Andre"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "45"]
[EventDate "1950.04.15"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Belgium"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 0-0 10. Bg5 c6 11. Qf3 Be7 12. Rae1 Be6 13. Ne2 Qd7 14. Nd4 Rae8 15. Nxe6 fxe6 16. Qh3 Bd6 17. f4 g6 18. Rf3 Ne4 19. Bxe4 dxe4 20. Rff1 Bc5+ 21. Kh1 e3 22. f5 exf5 23. Bxe3 1/2-1/2

[Event "BEL-NED m"]
[Site "Antwerp"]
[Date "1950.04.15"]
[Round "1.6"]
[White "Vlagsma, Chris"]
[Black "Janssens, Andre"]
[Result "1-0"]
[ECO "D48"]
[PlyCount "90"]
[EventDate "1950.04.15"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Belgium"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "BEL"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 Ng4 11. Ng5 cxd4 12. Nxf7 Qh4 13. g3 Qh5 14. Nxh8 dxc3 15. Be4 Rb8 16. Qe2 Bb4 17. b3 Qxe5 18. 0-0 Ngf6 19. f3 Bb7 20. Bf4 Qc5+ 21. Kg2 e5 22. Bxb7 Rxb7 23. g4 Kf8 24. Bc1 Kg8 25. a3 Ba5 26. b4 Qc6 27. bxa5 Nxg4 28. h3 Ngf6 29. Bg5 Qc5 30. Be3 Qe7 31. Ng6 hxg6 32. Qd3 Rc7 33. Qxg6 Nd5 34. Bg5 N7f6 35. Rfe1 c2 36. Rac1 Qxa3 37. Rxc2 Rxc2+ 38. Qxc2 Qxa5 39. Qc8+ Kf7 40. Rxe5 Qc7 41. Qe6+ Kf8 42. Rxd5 Nxd5 43. Qxd5 Qc2+ 44. Qd2 Qc6 45. h4 Kf7 1-0

[Event "Match/Nation NED-ENG 12,5-7,5"]
[Site "Utrecht"]
[Date "1949.09.18"]
[Round "2.8"]
[White "Hooper, David Vincent"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "D56"]
[PlyCount "44"]
[EventDate "1949.09.17"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Rc1 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Bd3 Nxc3 10. Rxc3 c6 11. Nf3 Nd7 12. 0-0 dxc4 13. Rxc4 e5 14. dxe5 Nxe5 15. Re4 Nxf3+ 16. Qxf3 Be6 17. Bb1 Rad8 18. Rd1 Rxd1+ 19. Qxd1 Rd8 20. Rd4 Rxd4 21. Qxd4 Qd7 22. Qxd7 Bxd7 1/2-1/2

[Event "Match/Nation NED-ENG 12,5-7,5"]
[Site "Utrecht"]
[Date "1949.09.17"]
[Round "1.8"]
[White "Vlagsma, Chris"]
[Black "Hooper, David Vincent"]
[Result "1-0"]
[ECO "A90"]
[PlyCount "75"]
[EventDate "1949.09.17"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "England"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nc3 d5 7. Qb3 c6 8. Nf3 0-0 9. Ne5 Kh8 10. 0-0 Ne4 11. Nxe4 dxe4 12. Bb4 c5 13. Bxc5 Bxc5 14. dxc5 Qc7 15. Qc3 Qxc5 16. b4 Qc7 17. c5 Nd7 18. Nxd7 Bxd7 19. Qb3 a5 20. a3 axb4 21. axb4 Qe5 22. Rxa8 Rxa8 23. Rd1 Bc6 24. Qa3 Re8 25. e3 Kg8 26. Bf1 g5 27. Rd6 f4 28. Bc4 fxg3 29. hxg3 b5 30. Rxc6 bxc4 31. Rd6 c3 32. Rd4 c2 33. Qc3 Ra8 34. Qxc2 Ra1+ 35. Rd1 Ra3 36. Rd8+ Kg7 37. Qd2 Qf5 38. Qb2+ 1-0

[Event "Match/Nation HUN-NED"]
[Site "Budapest"]
[Date "1949.??.??"]
[Round "?"]
[White "Fuster, Geza"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "D62"]
[PlyCount "85"]
[EventDate "1949.??.??"]
[EventType "team"]
[EventRounds "2"]
[EventCountry "HUN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Nbd7 5. Bg5 Be7 6. e3 0-0 7. Qc2 c5 8. cxd5 exd5 9. Bd3 h6 10. Bh4 cxd4 11. Nxd4 Nc5 12. 0-0 Be6 13. Rfd1 Rc8 14. Nf5 Nxd3 15. Qxd3 Rc4 16. Bg3 Bb4 17. Be5 Qd7 18. Nxh6+ gxh6 19. Bxf6 Bxc3 20. Bxc3 Rg4 21. f3 Rg5 22. Kh1 a6 23. e4 Qa4 24. Qe3 dxe4 25. Rd4 Qc2 26. Rd2 Qa4 27. fxe4 Kh7 28. Qd4 Qxd4 29. Rxd4 Rfg8 30. Rd2 Rg4 31. e5 Rf4 32. a3 Rg5 33. h3 Rgf5 34. Kh2 Rf2 35. Rad1 Kg6 36. Bd4 Rxd2 37. Rxd2 Bd5 38. Bc3 Be6 39. g4 Rf1 40. Rd6 Kg7 41. Bd2 h5 42. gxh5 Rf5 43. Kg3 1/2-1/2

[Event "Match/Nation YUG-NED"]
[Site "Belgrade"]
[Date "1949.??.??"]
[Round "2.7"]
[White "Simonovic, Borko"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "D68"]
[PlyCount "80"]
[EventDate "1949.??.??"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "YUG"]
[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. e3 0-0 6. Rc1 Nbd7 7. Nf3 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. 0-0 Nxc3 12. Rxc3 e5 13. Qb1 exd4 14. exd4 Nb6 15. Bb3 Qf6 16. Re3 Bf5 17. Qe1 Rad8 18. Qa5 Nc8 19. Rfe1 g6 20. h3 Qd6 21. g4 Bd7 22. Qg5 Kg7 23. Bxf7 Kxf7 24. Qh6 Rh8 25. Ng5+ Kg8 26. Ne4 Qe7 27. g5 Qg7 28. Nf6+ Kf8 29. Nxd7+ Rxd7 30. Re8+ Kf7 31. Qh4 Rf8 32. Qe4 Kg8 33. Rxf8+ Qxf8 34. Qe6+ Rf7 35. h4 Ne7 36. h5 gxh5 37. f4 Nf5 38. d5 Qc5+ 39. Kh1 Qxd5+ 40. Qxd5 cxd5 0-1

[Event "Match/Nation HUN-NED"]
[Site "Budapest"]
[Date "1949.??.??"]
[Round "?"]
[White "Vlagsma, Chris"]
[Black "Fuster, Geza"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "56"]
[EventDate "1949.??.??"]
[EventType "team"]
[EventRounds "2"]
[EventCountry "HUN"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e6 7. Bd3 Bd6 8. 0-0 0-0 9. Qe2 Qc7 10. Ne4 Bf4 11. c3 b6 12. Nxf6+ Nxf6 13. Bxf4 Qxf4 14. Ne5 Bb7 15. Ba6 Bxa6 16. Qxa6 c5 17. Nd3 Qc7 18. dxc5 bxc5 19. Qc4 Rfc8 20. Rfc1 Nd7 21. b4 a5 22. Qe4 c4 23. Nf4 axb4 24. cxb4 Ra3 25. Ne2 Nf6 26. Qc2 c3 27. Rab1 Qc4 28. Kf1 Rxa2 0-1

[Event "Match/Nation YUG-NED"]
[Site "Belgrade"]
[Date "1949.??.??"]
[Round "1.7"]
[White "Vlagsma, Chris"]
[Black "Simonovic, Borko"]
[Result "0-1"]
[ECO "E58"]
[PlyCount "81"]
[EventDate "1949.??.??"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "YUG"]
[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. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. 0-0 Nc6 8. a3 Bxc3 9. bxc3 b6 10. a4 Ba6 11. cxd5 Bxd3 12. Qxd3 exd5 13. dxc5 bxc5 14. Ba3 c4 15. Qc2 Re8 16. Bc5 Qa5 17. Bd4 Ne4 18. Rfd1 Rab8 19. Nd2 Nxd4 20. cxd4 Nc3 21. Re1 Qb4 22. Kf1 Qb2 23. Rec1 Qxc2 24. Rxc2 Ne4 25. Ke2 Rb4 26. Nb1 Reb8 27. f3 Rb2 28. Ra2 Rxa2 29. Rxa2 Rxb1 30. fxe4 dxe4 31. Kd2 Rb3 32. a5 Rd3+ 33. Ke2 c3 34. g4 Kf8 35. Kf2 Ke7 36. Ra4 Rd2+ 37. Kg3 c2 38. Rc4 g5 39. h4 h6 40. hxg5 hxg5 41. Rc6 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.25"]
[Round "9"]
[White "Prins, Lodewijk"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "B20"]
[PlyCount "105"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 Nc6 3. c3 Nf6 4. Qe2 d5 5. exd5 Nxd5 6. Nf3 Bf5 7. d4 e6 8. 0-0 Be7 9. dxc5 Bxc5 10. Rd1 0-0 11. Be3 Bxe3 12. fxe3 Bg4 13. Bxd5 exd5 14. c4 Bxf3 15. Qxf3 Ne5 16. Qxd5 Nxc4 17. Nc3 Nxe3 18. Qxd8 Rfxd8 19. Rxd8+ Rxd8 20. Re1 Rd3 21. Nb5 a6 22. Nd6 Rxd6 23. Rxe3 f5 24. Kf1 b5 25. Ke2 Rd4 26. Kf3 Kf7 27. Rc3 Ra4 28. Rc7+ Kf6 29. Rc6+ Ke5 30. a3 g6 31. g3 f4 32. Rc7 fxg3 33. hxg3 h5 34. Rc6 Kf5 35. Rc5+ Kf6 36. Rc6+ Kg5 37. Rc5+ Kh6 38. Rc6 Rd4 39. Rxa6 Rd3+ 40. Kg2 Rb3 41. a4 b4 42. Rb6 Rxb2+ 43. Kh3 b3 44. a5 Ra2 45. Rxb3 Rxa5 46. Rb6 Kg5 47. Rc6 Kf5 48. Rb6 Rd5 49. Ra6 g5 50. Ra4 h4 51. gxh4 Rd3+ 52. Kg2 g4 53. Rb4 1/2-1/2

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.24"]
[Round "8"]
[White "Vlagsma, Chris"]
[Black "Vinken, Alex"]
[Result "0-1"]
[ECO "D26"]
[PlyCount "74"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. 0-0 c5 7. Qe2 cxd4 8. exd4 Be7 9. Nc3 0-0 10. Bg5 b5 11. Bb3 Bb7 12. Rfe1 b4 13. Bxf6 Bxf6 14. Ne4 a5 15. Nxf6+ Qxf6 16. Ne5 Rd8 17. Nxf7 Kxf7 18. Qh5+ g6 19. Bxe6+ Kg7 20. Qc5 Na6 21. Qxa5 Qxd4 22. Qb5 Rab8 23. Rad1 Qf6 24. Rd7+ Rxd7 25. Qxd7+ Kh8 26. Bc4 Rf8 27. f3 Nc5 28. Qd2 Rd8 29. Qe2 Bc6 30. b3 Qd4+ 31. Kh1 Re8 32. Qf1 Re5 33. Rd1 Qe3 34. h3 Rh5 35. Re1 Rxh3+ 36. gxh3 Bxf3+ 37. Kh2 Qf4+ 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.23"]
[Round "7"]
[White "Stumpers, Louis F"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "C65"]
[PlyCount "89"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bc5 5. Nxe5 Nxe5 6. d4 a6 7. Be2 Nxe4 8. dxc5 Nc6 9. Qd5 Nf6 10. Qg5 Nd4 11. Qe5+ Ne6 12. f4 d6 13. cxd6 cxd6 14. Qc3 0-0 15. Nd2 Nd5 16. Qg3 Qb6+ 17. Kh1 Qe3 18. Qf3 Qxf3 19. Bxf3 Ne3 20. Rf2 Nxc2 21. Rb1 Nb4 22. Nc4 Nd4 23. Nxd6 Nxf3 24. Rxf3 Rd8 25. Bd2 Nxa2 26. Nc4 b5 27. Nb6 Rb8 28. Ba5 Rd4 29. h3 Bb7 30. Re3 f5 31. Rbe1 Be4 32. Ra3 Nb4 33. Rg3 Nc6 34. b4 Nxb4 35. Nd7 Rc8 36. Nf6+ Kf7 37. Nxe4 fxe4 38. Ra1 Rd3 39. Rg5 Nd5 40. Rf5+ Nf6 41. Bb6 Rd5 42. Re5 Rxe5 43. fxe5 Nd5 44. Rxa6 Nxb6 45. Rxb6 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.22"]
[Round "6"]
[White "Vlagsma, Chris"]
[Black "Baay, Jacob G"]
[Result "0-1"]
[ECO "E33"]
[PlyCount "47"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. Bd2 0-0 7. a3 Bxc3 8. Bxc3 Re8 9. b4 e5 10. dxe5 dxe5 11. b5 e4 12. bxc6 exf3 13. gxf3 Qd6 14. Qd2 Qxc6 15. Rg1 Bf5 16. Rxg7+ Kxg7 17. Qg5+ Bg6 18. f4 Re6 19. e3 h6 20. Qh4 Rd8 21. Bh3 Qh1+ 22. Ke2 Bd3+ 23. Kd2 Bb1+ 24. Bd4 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.19"]
[Round "5"]
[White "Vlagsma, Chris"]
[Black "Kramer, Haije J"]
[Result "1/2-1/2"]
[ECO "E21"]
[PlyCount "133"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d6 5. Nf3 Nbd7 6. g3 b6 7. Bg2 Bb7 8. 0-0 Bxc3 9. Qxc3 a5 10. b3 0-0 11. Ba3 c5 12. Rad1 Qc7 13. Bb2 Be4 14. a4 Rfd8 15. Bh3 h6 16. Ne1 Bb7 17. f3 d5 18. cxd5 Nxd5 19. Qc1 Ba6 20. Rf2 cxd4 21. Qxc7 Nxc7 22. Rc1 Nc5 23. Ba3 Nd5 24. Bxc5 bxc5 25. Bf1 Nc3 26. e3 dxe3 27. Rfc2 e2 28. Bg2 Nd1 29. f4 Rac8 30. Bf3 c4 31. Bxe2 Ne3 32. Rc3 Nd5 33. Rf3 cxb3 34. Rxc8 Bxc8 35. Rxb3 Nb4 36. Rc3 Bd7 37. Rc5 Ra8 38. Bb5 Bxb5 39. Rxb5 Ra7 40. Nf3 f6 41. Nd4 Kf7 42. Nb3 Nd5 43. f5 Nc3 44. fxe6+ Kxe6 45. Rxa5 Rxa5 46. Nxa5 Nxa4 47. Nc4 Kd5 48. Ne3+ Ke4 49. Kf2 Nc3 50. Nc4 Nb5 51. Nd2+ Kd3 52. Nf3 Nd4 53. Nh4 Ke4 54. Ng6 Nf3 55. h3 Ne5 56. Ne7 h5 57. Nc8 Nf7 58. Ne7 f5 59. Ng6 Ne5 60. Nf8 h4 61. gxh4 f4 62. Ne6 Nd3+ 63. Kf1 g6 64. Ng7 f3 65. h5 gxh5 66. Nxh5 Ke3 67. Nf6 1/2-1/2

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.18"]
[Round "4"]
[White "Van Mindeno, Siegfried Bernard"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "B74"]
[PlyCount "82"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. 0-0 0-0 8. Kh1 Nc6 9. Nb3 Be6 10. f4 Qc8 11. Be3 Rd8 12. Bf3 Bc4 13. Rg1 d5 14. e5 Bxb3 15. exf6 Bxf6 16. Bg4 Qb8 17. Ne2 d4 18. Bf2 d3 19. cxb3 dxe2 20. Qxe2 Qxf4 21. Be3 Qe5 22. Rab1 Bg5 23. Rge1 Bxe3 24. Qxe3 Qxe3 25. Rxe3 Rd2 26. Kg1 Rad8 27. Kf1 Rc2 28. Bd1 Rc5 29. Bf3 e6 30. Rbe1 Nb4 31. Re5 Rxe5 32. Rxe5 b6 33. Re4 Nxa2 34. Ra4 Nc1 35. b4 Rd4 36. Bc6 Nd3 37. Ra3 Nxb4 38. Ba4 Rd2 39. Bb5 a5 40. b3 Nc2 41. Ra4 Ne3+ 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.17"]
[Round "3"]
[White "Vlagsma, Chris"]
[Black "Henneberke, Frans"]
[Result "0-1"]
[ECO "E41"]
[PlyCount "122"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d6 6. Nge2 Nc6 7. 0-0 0-0 8. a3 Bxc3 9. Nxc3 cxd4 10. exd4 Nxd4 11. Bxh7+ Nxh7 12. Qxd4 Qd7 13. Rd1 Rd8 14. Rd3 Qe7 15. Bf4 e5 16. Bxe5 Bf5 17. Nd5 Qd7 18. Bxg7 Bxd3 19. Bf6 Bc2 20. Qh4 Re8 21. Be7 Qe6 22. f3 Rxe7 23. Nxe7+ Kh8 24. Re1 Qf6 25. Qf2 Bd3 26. Nd5 Qg7 27. b3 Bf5 28. g4 Ng5 29. Kh1 Bd7 30. Qh4+ Nh7 31. Re7 Bc6 32. Qh5 Kg8 33. h4 Kf8 34. Qf5 Rd8 35. Re1 Qg6 36. Qf4 Bxd5 37. cxd5 Qf6 38. Qe3 Qxh4+ 39. Kg2 Qg5 40. Qe4 Kg8 41. Rh1 Nf6 42. Qd4 b6 43. a4 Re8 44. Kf2 Rc8 45. Qd3 Qxd5 46. Qxd5 Nxd5 47. Rd1 Rc5 48. Rd4 a5 49. f4 Nc3 50. Ke3 b5 51. Rxd6 bxa4 52. bxa4 Nxa4 53. Kd4 Rb5 54. Ra6 Nb6 55. g5 Kg7 56. f5 Rxf5 57. Rxb6 Rxg5 58. Ra6 Rg4+ 59. Ke5 Ra4 60. Kf5 Ra1 61. Kg4 a4 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.16"]
[Round "2"]
[White "Barendregt, Johan"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "D44"]
[PlyCount "78"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. Bg5 dxc4 6. a4 c5 7. e4 cxd4 8. Qxd4 Qxd4 9. Nxd4 Bb4 10. f3 0-0 11. Bxc4 Bd7 12. Nc2 Ba5 13. Bd2 Nc6 14. 0-0 Rac8 15. Be2 Rfd8 16. Rfd1 Be8 17. Be1 Rxd1 18. Rxd1 h6 19. g3 Ne5 20. Ne3 Bc6 21. Kg2 Ned7 22. Bb5 Nc5 23. Bxc6 Rxc6 24. Ncd5 Bd8 25. Nc3 Bb6 26. Nc4 Ncxe4 27. Nxb6 Nxc3 28. Rd8+ Kh7 29. Bxc3 Rxb6 30. Rf8 Kg6 31. Rb8 a6 32. Bd4 Rb3 33. a5 Nd5 34. Kh3 Ne7 35. Bb6 Nc6 36. Rxb7 Nxa5 37. Rb8 Nc4 38. Bc7 Rxb8 39. Bxb8 Nxb2 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.15"]
[Round "1"]
[White "Vlagsma, Chris"]
[Black "Van Scheltinga, Theo D"]
[Result "0-1"]
[ECO "E94"]
[PlyCount "80"]
[EventDate "1948.11.15"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[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. Qc2 a5 10. Nd2 Ne8 11. Nb3 f5 12. Nxc5 dxc5 13. exf5 gxf5 14. Be3 b6 15. f4 e4 16. Qd2 Nd6 17. h3 Kh8 18. Kh2 a4 19. Rac1 Rg8 20. Rg1 Qf6 21. g3 Bd7 22. Rg2 Qh6 23. Rh1 Bf6 24. Kg1 Qg7 25. Nd1 Bd4 26. Rhh2 Rab8 27. g4 b5 28. cxb5 Bxb5 29. Bxb5 Rxb5 30. gxf5 Qf6 31. Rxg8+ Kxg8 32. Rg2+ Kh8 33. Qe2 Rb8 34. Nc3 a3 35. bxa3 Bxc3 36. Bxc5 Rb2 37. Qg4 Bd4+ 38. Bxd4 Qxd4+ 39. Kh2 Rxg2+ 40. Kxg2 Qxd5 0-1

[Event "Match/Nation ENG-NED"]
[Site "London"]
[Date "1948.09.12"]
[Round "2.7"]
[White "Tylor, Theodore Henry"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "C48"]
[PlyCount "56"]
[EventDate "1948.09.11"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. Nxe5 0-0 7. Nd3 Bb6 8. e5 Ne8 9. 0-0 d5 10. exd6 Nxd6 11. Kh1 c6 12. Ne2 Nxe2 13. Qxe2 Qh4 14. Bb3 Bg4 15. Qe5 Bc7 16. Qf4 Rae8 17. h3 Re4 18. Qg3 Qxg3 19. fxg3 Be2 20. Rf4 Bxd3 21. cxd3 Re1+ 22. Kh2 g6 23. Rf3 Nf5 24. d4 h5 25. h4 Nxd4 26. Re3 Re8 27. Bc4 R8xe3 28. dxe3 Nf5 0-1

[Event "Match/Nation ENG-NED"]
[Site "London"]
[Date "1948.09.11"]
[Round "1.7"]
[White "Vlagsma, Chris"]
[Black "Tylor, Theodore Henry"]
[Result "0-1"]
[ECO "E60"]
[PlyCount "46"]
[EventDate "1948.09.11"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "England"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. e4 d6 6. Ne2 Nc6 7. h3 e5 8. Be3 exd4 9. Nxd4 Re8 10. Nxc6 bxc6 11. Nc3 Rb8 12. Qc2 Rb4 13. c5 Nxe4 14. Bxe4 Bxc3+ 15. Qxc3 Rexe4 16. Rd1 Qe7 17. Kf1 Rec4 18. Qd2 Qe4 19. Kg1 Be6 20. cxd6 Bd5 21. Rh2 cxd6 22. f4 Qf3 23. Bf2 Rxb2 0-1

[Event "Baarn-A"]
[Site "Baarn"]
[Date "1947.05.13"]
[Round "5"]
[White "Vlagsma, Chris"]
[Black "Vinken, Alex"]
[Result "1-0"]
[ECO "D46"]
[PlyCount "47"]
[EventDate "1947.05.09"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Nbd7 5. Nc3 c6 6. Bd3 a6 7. b3 Bd6 8. Qc2 0-0 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Bb4+ 12. Bd2 Bxd2+ 13. Qxd2 Qf6 14. 0-0 e5 15. dxe5 Nxe5 16. Nxe5 Qxe5 17. Rfe1 Qf6 18. Qb4 a5 19. Bxh7+ Kxh7 20. Qxf8 Bh3 21. Qxa8 Qg6 22. g3 Qf6 23. Qe8 g6 24. Qe4 1-0

[Event "Baarn-A"]
[Site "Baarn"]
[Date "1947.05.11"]
[Round "3"]
[White "Vlagsma, Chris"]
[Black "Van Doesburgh, Gerrit RD"]
[Result "1-0"]
[ECO "D22"]
[PlyCount "69"]
[EventDate "1947.05.09"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Bg4 5. Bxc4 e6 6. Qb3 Bxf3 7. gxf3 b5 8. Be2 c5 9. dxc5 Bxc5 10. 0-0 Nd7 11. Nd2 Ngf6 12. Rd1 Qb8 13. a4 b4 14. Qc4 Bd6 15. Nf1 Ke7 16. Bd2 Rc8 17. Qh4 a5 18. Rac1 Nc5 19. Bb5 Qb7 20. e4 Nb3 21. e5 Nxc1 22. exd6+ Kf8 23. Bxc1 Qxf3 24. Rd3 Qf5 25. Bg5 Rc5 26. Rg3 Ne4 27. Be7+ Kg8 28. Rg2 Rc1 29. Qh6 Qxf2+ 30. Rxf2 gxh6 31. Rg2+ Kh8 32. d7 Rd1 33. Bc6 Rxd7 34. Bxd7 Ra7 35. Bc6 1-0

[Event "Baarn-A"]
[Site "Baarn"]
[Date "1947.05.09"]
[Round "1"]
[White "Vlagsma, Chris"]
[Black "Pomar Salamanca, Arturo"]
[Result "1/2-1/2"]
[ECO "D49"]
[PlyCount "71"]
[EventDate "1947.05.09"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Bd3 Nbd7 6. Nf3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 axb5 12. exf6 Qb6 13. fxg7 Bxg7 14. 0-0 Bb7 15. Qc2 Bc6 16. Ng5 Nc5 17. Bf4 Nxd3 18. Qxd3 Bd5 19. b3 h6 20. Ne4 e5 21. Qg3 0-0 22. Bxe5 f6 23. Bc7 Qb7 24. f3 Bxe4 25. fxe4 Qxe4 26. Rac1 Qd5 27. Bf4 Kh7 28. Rc7 Rf7 29. Rxf7 Qxf7 30. Be5 Qg6 31. Qxg6+ Kxg6 32. Bxd4 Rxa2 33. g3 Rd2 34. Bc5 Rd3 35. b4 Kg5 36. Kf2 1/2-1/2

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.11.02"]
[Round "7"]
[White "Prins, Lodewijk"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "C99"]
[PlyCount "87"]
[EventDate "1946.10.26"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 Bd7 15. Be3 Nb4 16. Bb1 Rfc8 17. Qd2 a5 18. Rc1 Qd8 19. dxe5 dxe5 20. Nxe5 Be6 21. Qxd8+ Rxd8 22. Nd4 Rac8 23. Rxc8 Bxc8 24. a3 Bc5 25. axb4 Bxd4 26. Nc6 Bxb2 27. Nxd8 Bxa1 28. bxa5 Bc3 29. Bd3 Ba6 30. Nc6 Nd7 31. f4 Kf8 32. Kf2 Ke8 33. Ke2 Bb7 34. Bxb5 Bxc6 35. Bxc6 Bxa5 36. Bd4 g6 37. Bf6 h5 38. Kf3 Be1 39. g4 hxg4+ 40. hxg4 Bd2 41. e5 Bb4 42. Ke4 Ba3 43. Kd5 Bf8 44. e6 1-0

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.11.01"]
[Round "6"]
[White "Van Scheltinga, Theo D"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "C58"]
[PlyCount "104"]
[EventDate "1946.10.26"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. Qe2 Nxc4 9. dxc4 Bc5 10. Nfd2 0-0 11. Nb3 Bg4 12. Qf1 Bb4+ 13. c3 Be7 14. h3 Bh5 15. Be3 b5 16. Nd4 bxc4 17. Nc6 Qd7 18. Qxc4 Rfe8 19. g4 Bg6 20. Ne5 Qxd5 21. Qxd5 Nxd5 22. Nxg6 fxg6 23. Nd2 Rab8 24. Nc4 a5 25. 0-0-0 Nxe3 26. fxe3 Rb5 27. a4 Rc5 28. b3 Bf6 29. Kc2 Kf7 30. Rhf1 Re6 31. Rd7+ Ke8 32. Rfd1 Rec6 33. R7d5 Kf7 34. Nxa5 Rxc3+ 35. Kb1 Rb6 36. Rc1 Rxe3 37. Rxc7+ Kg8 38. Rb5 Rd6 39. Rb8+ Kh7 40. Rc1 Rdd3 41. Nc4 Rxb3+ 42. Rxb3 Rxb3+ 43. Ka2 Rb4 44. a5 Bd4 45. Rc2 e3 46. Ka3 e2 47. Rxe2 Rxc4 48. Kb3 Rc3+ 49. Kb4 Rxh3 50. a6 Rh4 51. Re4 Bg1 52. Kb5 h5 0-1

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.31"]
[Round "5"]
[White "Vlagsma, Chris"]
[Black "Wellner, Jan"]
[Result "0-1"]
[ECO "C97"]
[PlyCount "92"]
[EventDate "1946.10.26"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Bd7 13. Nbd2 Rfc8 14. Nf1 c4 15. g4 Nb7 16. Ng3 a5 17. Be3 Nc5 18. Qd2 Qb7 19. a3 Rab8 20. Bxc5 Rxc5 21. Nf5 Bxf5 22. gxf5 Nh5 23. Kh2 Rcc8 24. Rg1 Kh8 25. Rg4 Bf6 26. Rag1 b4 27. axb4 axb4 28. h4 bxc3 29. bxc3 h6 30. Ng5 Qe7 31. Nh3 Rb2 32. Qc1 Rcb8 33. R1g2 Nf4 34. Nxf4 exf4 35. Kh3 f3 36. Rg1 Bxc3 37. R4g3 Bf6 38. Rxf3 Bxh4 39. Rc3 Bxf2 40. Rg4 R2b4 41. Qf1 h5 42. Rf4 Bd4 43. Rxc4 Rxc4 44. Qxc4 Qg5 45. Qc7 Rb2 46. f6 Qxf4 0-1

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.30"]
[Round "4"]
[White "Pruyt, PH."]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "C77"]
[PlyCount "98"]
[EventDate "1946.10.26"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Bc5 7. a4 Rb8 8. axb5 axb5 9. d3 d6 10. 0-0 0-0 11. Be3 Bxe3 12. Qxe3 Qe7 13. Nbd2 Be6 14. c3 Bxb3 15. Nxb3 Ra8 16. Qe2 b4 17. c4 Nh5 18. g3 g6 19. Nh4 Ng7 20. Ng2 Ne6 21. f4 Ncd4 22. Nxd4 Nxd4 23. Qf2 Rxa1 24. Rxa1 f5 25. exf5 gxf5 26. Re1 Qg7 27. Nh4 b3 28. fxe5 dxe5 29. Nf3 Nxf3+ 30. Qxf3 e4 31. dxe4 fxe4 32. Qxb3 Qd4+ 33. Qe3 Qxc4 34. Qxe4 Qxe4 35. Rxe4 Rb8 36. b4 Rb5 37. Rc4 Kf8 38. Kg2 Ke8 39. Kh3 Kd7 40. Kh4 Re5 41. g4 Kd6 42. g5 c6 43. Kh5 Rf5 44. Kh6 Rf7 45. h4 Kd5 46. Rg4 Ke5 47. h5 Rd7 48. g6 hxg6 49. hxg6 Kf5 1-0

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.29"]
[Round "3"]
[White "Vlagsma, Chris"]
[Black "Van den Tol, Theo P"]
[Result "1/2-1/2"]
[ECO "C03"]
[PlyCount "60"]
[EventDate "1946.10.26"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nd2 b6 4. Ngf3 Nf6 5. Bd3 Ba6 6. Bxa6 Nxa6 7. c3 Nb8 8. 0-0 Be7 9. Qe2 0-0 10. Ne5 c5 11. exd5 exd5 12. Ndf3 Ne4 13. dxc5 Bxc5 14. Be3 Re8 15. Rad1 f6 16. Nd3 Bxe3 17. fxe3 Qc8 18. Nf4 Qc4 19. Qc2 Nc6 20. Nxd5 Rad8 21. Qb3 Na5 22. Ne7+ Kf8 23. Qa3 Rxd1 24. Nf5+ Qc5 25. Qxc5+ Nxc5 26. Rxd1 Nc4 27. b4 Na4 28. Rd7 Nxc3 29. Rc7 b5 30. Rxa7 Nxe3 1/2-1/2

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.28"]
[Round "2"]
[White "Henneberke, Frans"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "A84"]
[PlyCount "65"]
[EventDate "1946.10.26"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 f5 5. Bd3 Bd6 6. b3 Qf6 7. Ba3 Bxa3 8. Nxa3 Nd7 9. Qc2 Ne7 10. 0-0 0-0 11. Rad1 g5 12. Qb2 Ng6 13. cxd5 exd5 14. b4 b6 15. Qb3 Bb7 16. Nb1 h6 17. Nc3 Qe6 18. Rfe1 Kg7 19. e4 fxe4 20. Nxe4 Rxf3 21. gxf3 Re8 22. Ng3 Qxe1+ 23. Rxe1 Rxe1+ 24. Nf1 Nf4 25. h4 Nf8 26. Kh2 N8e6 27. Ng3 Bc8 28. Nf5+ Kf6 29. Ne3 gxh4 30. Qc3 Ng5 31. Qxc6+ Be6 32. Ng4+ Kg7 33. Qc7+ 1-0

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.26"]
[Round "1"]
[White "Vlagsma, Chris"]
[Black "Vinken, Alex"]
[Result "1/2-1/2"]
[ECO "A47"]
[PlyCount "75"]
[EventDate "1946.10.26"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 4. Bd3 c5 5. Nbd2 cxd4 6. exd4 g6 7. 0-0 Bg7 8. Re1 0-0 9. Nf1 Nc6 10. Bd2 Rc8 11. Rc1 d5 12. c3 Nd7 13. Ne3 e5 14. Nxd5 Nxd4 15. cxd4 Rxc1 16. Bxc1 Bxd5 17. Nxe5 Nxe5 18. dxe5 Bxa2 19. Qe2 Be6 20. f4 Qc8 21. h3 Rd8 22. Be4 f6 23. Bf3 fxe5 24. fxe5 Qc5+ 25. Be3 Qxe5 26. Bxb6 Qxe2 27. Rxe2 axb6 28. Rxe6 Bxb2 29. Re7 Bd4+ 30. Kf1 Bc5 31. Rb7 Rf8 32. Ke2 Re8+ 33. Kd2 Re7 34. Rxe7 Bxe7 35. Kc3 Kf7 36. Kc4 Kf6 37. Kb5 Bc5 38. Bb7 1/2-1/2

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.29"]
[Round "9"]
[White "Vlagsma, Chris"]
[Black "Wolthuis, Willem"]
[Result "1-0"]
[ECO "B11"]
[PlyCount "95"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 d4 4. Ne2 c5 5. Ng3 Nc6 6. d3 e5 7. Be2 g6 8. Nd2 Bg7 9. Bg4 Nge7 10. Bxc8 Nxc8 11. a4 Nd6 12. Nc4 Nxc4 13. dxc4 Qh4 14. Ra3 0-0-0 15. 0-0 Rhf8 16. Qe2 f5 17. f4 exf4 18. Rxf4 Qe7 19. Rf2 Rde8 20. exf5 Qxe2 21. Nxe2 Rxf5 22. Rxf5 gxf5 23. Kf2 Nb4 24. Rh3 Nxc2 25. Nf4 Re1 26. Nd3 Rd1 27. Rxh7 Bf6 28. Ke2 Rg1 29. g3 Nb4 30. Bf4 Rg2+ 31. Kf3 Rc2 32. Nxc5 Rxb2 33. Rf7 b6 34. Rf8+ Bd8 35. Ne6 Kd7 36. Nxd8 Nd3 37. Rxf5 Kxd8 38. Rd5+ Ke8 39. h4 Nc5 40. Rxd4 Nxa4 41. g4 Nc5 42. g5 Kf7 43. h5 Rb1 44. g6+ Kf6 45. Rd6+ Kf5 46. g7 Rf1+ 47. Kg2 Rxf4 48. Rg6 1-0

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.28"]
[Round "8"]
[White "Vlagsma, Chris"]
[Black "Van Scheltinga, Theo D"]
[Result "0-1"]
[ECO "C99"]
[PlyCount "106"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. d5 Nb4 15. Bb1 a5 16. a3 Na6 17. b4 axb4 18. axb4 Bd7 19. Ba3 Nxb4 20. Nb3 Ra4 21. Qd2 Na6 22. Nxe5 b4 23. Nxd7 Nxd7 24. Bb2 Rxa1 25. Bxa1 Bf6 26. Nd4 Qb6 27. Bc2 Ndc5 28. Rb1 Re8 29. f3 Rb8 30. Kh1 Rb7 31. f4 g6 32. Qe3 Nd7 33. Ba4 Nac5 34. Bb5 Qa5 35. Bc6 Rb6 36. Rc1 Qa3 37. Re1 Qxe3 38. Rxe3 Ra6 39. Bb2 Ra2 40. e5 Rxb2 41. exf6 Nxf6 42. f5 Nfe4 43. fxg6 hxg6 44. Ne6 b3 45. Nxc5 Nxc5 46. Re8+ Kg7 47. Rb8 Kf6 48. Be8 Rd2 49. Bb5 b2 50. Bf1 Rd1 51. Rxb2 Rxf1+ 52. Kh2 Rd1 53. Rf2+ Kg7 0-1

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.27"]
[Round "7"]
[White "Soultanbeieff, Victor Ivanovich"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "D46"]
[PlyCount "85"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Nbd7 6. 0-0 Be7 7. Nc3 0-0 8. e4 dxe4 9. Nxe4 Qc7 10. Bg5 Re8 11. Qc2 Nxe4 12. Bxe4 Nf8 13. Rad1 Bxg5 14. Nxg5 h6 15. Nf3 b6 16. Rfe1 Bb7 17. Qc3 Rad8 18. c5 Nd7 19. b4 Nf6 20. Ne5 b5 21. Bb1 Nd5 22. Qc2 f5 23. Qd2 Bc8 24. g4 Rf8 25. gxf5 exf5 26. a3 Rf6 27. f4 Be6 28. Re2 Bf7 29. Rde1 Bh5 30. Rg2 Kh8 31. Ba2 Kh7 32. Kh1 Re6 33. Reg1 Re7 34. Bb1 Qc8 35. Rg3 Qe6 36. Qg2 Rg8 37. Qh3 g6 38. Nxg6 Bxg6 39. Rxg6 Rxg6 40. Bxf5 Nxf4 41. Rxg6 Qxg6 42. Bxg6+ Kxg6 43. Qg4+ 1-0

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.25"]
[Round "6"]
[White "Vlagsma, Chris"]
[Black "Devos, Paul"]
[Result "1/2-1/2"]
[ECO "B84"]
[PlyCount "68"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[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. Kh1 Nc6 9. a4 Qc7 10. Nb3 b6 11. f4 0-0 12. Bf3 Bb7 13. g4 Nb4 14. g5 Nd7 15. Be3 Rac8 16. Rf2 Rfe8 17. Qd2 Nc6 18. Ne2 Nc5 19. Nxc5 dxc5 20. Ng3 Rcd8 21. Qc3 e5 22. f5 Nd4 23. f6 Bf8 24. fxg7 Bxg7 25. Bg2 Ne6 26. Raf1 Nf4 27. a5 bxa5 28. Qxc5 Qxc5 29. Bxc5 Rd7 30. Bf3 Nh3 31. Rg2 Nf4 32. Rgf2 Nh3 33. Rg2 Nf4 34. Rgf2 Nh3 1/2-1/2

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.24"]
[Round "5"]
[White "Alexander, Conel Hugh O'Donel"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "B70"]
[PlyCount "87"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Bg4 7. Qd3 Qc8 8. Bg2 Bg7 9. e5 dxe5 10. Qb5+ Bd7 11. Bxb7 Qc7 12. Nd5 Nxd5 13. Qxd5 exd4 14. Bxa8 Nc6 15. 0-0 0-0 16. Bxc6 Bxc6 17. Qc5 Qd7 18. f3 Rc8 19. Qa3 h5 20. Bg5 f6 21. Bd2 e5 22. Rf2 f5 23. c3 Bf8 24. b4 dxc3 25. Qxc3 Bg7 26. Rc1 e4 27. Qc4+ Kh7 28. Be3 Bb7 29. Qf1 Rxc1 30. Qxc1 a6 31. Rd2 Qe6 32. f4 Bc6 33. Qc5 Bb5 34. Qc7 Qc4 35. Qxc4 Bxc4 36. Rd7 Bb5 37. Ra7 Kg8 38. a4 Bd3 39. Rd7 Bc3 40. Rb7 Be1 41. b5 axb5 42. axb5 Kf8 43. b6 Ke8 44. Rg7 1-0

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.23"]
[Round "4"]
[White "Vlagsma, Chris"]
[Black "Vinken, Alex"]
[Result "0-1"]
[ECO "C77"]
[PlyCount "62"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. c3 b5 7. Bc2 d6 8. d3 0-0 9. Nbd2 Nh5 10. Nf1 Rb8 11. h3 g6 12. g4 Nf4 13. Bxf4 exf4 14. Qd2 b4 15. Qxf4 bxc3 16. bxc3 d5 17. Ne3 dxe4 18. dxe4 Qd6 19. Qxd6 Bxd6 20. Nd4 Nd8 21. 0-0 h5 22. Kg2 hxg4 23. hxg4 Ne6 24. Nd5 Kg7 25. Nxe6+ Bxe6 26. f3 Rh8 27. Bb3 Rh2+ 28. Kg1 Rbh8 29. Rad1 Bxd5 30. Rxd5 Rh1+ 31. Kf2 R8h2+ 0-1

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.22"]
[Round "3"]
[White "Prins, Lodewijk"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "C82"]
[PlyCount "41"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 0-0 11. Bc2 Nxd2 12. Qxd2 f6 13. exf6 Rxf6 14. Qe2 Qd7 15. Bg5 Rff8 16. Rad1 Bd6 17. a4 Nd8 18. Bxd8 Raxd8 19. Bxh7+ Kxh7 20. Ng5+ Kg8 21. Qxe6+ 1-0

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.21"]
[Round "2"]
[White "Vlagsma, Chris"]
[Black "Doerner, Charles"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "51"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. 0-0 a6 8. f4 Nbd7 9. Bf3 Qc7 10. Kh1 h5 11. Be3 Rb8 12. Bg1 Nf8 13. Qd2 Ng6 14. Rae1 e5 15. fxe5 Nxe5 16. Nf5 Nxf3 17. Rxf3 Bxf5 18. Rxf5 0-0 19. Bd4 Ne8 20. Rxh5 Qd8 21. Re3 Bg5 22. Reh3 f6 23. Be3 Nc7 24. Bxg5 fxg5 25. Rh8+ Kf7 26. Rf3+ 1-0

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.20"]
[Round "1"]
[White "Euwe, Max"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "C82"]
[PlyCount "77"]
[EventDate "1946.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qd3 0-0 11. Be3 Bxe3 12. Qxe3 Ne7 13. Nbd2 Nf5 14. Qe2 Nxd2 15. Qxd2 c5 16. Rad1 Qb6 17. Bc2 Rad8 18. Qf4 Ne7 19. Bxh7+ Kxh7 20. Qh4+ Kg8 21. Qxe7 f6 22. b4 Rf7 23. bxc5 Rxe7 24. cxb6 Bg4 25. exf6 gxf6 26. Rd3 Bxf3 27. Rxf3 Rd6 28. Rd3 Rxb6 29. Rxd5 Re4 30. Rd7 Rc6 31. Ra7 Ra4 32. Rd1 Rc8 33. g3 Rxa2 34. h4 Ra3 35. Rdd7 Raxc3 36. Rg7+ Kf8 37. Rh7 Kg8 38. Rag7+ Kf8 39. h5 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.13"]
[Round "9"]
[White "Vlagsma, Chris"]
[Black "O'Kelly de Galway, Alberic"]
[Result "0-1"]
[ECO "C65"]
[PlyCount "42"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bc5 5. Nxe5 Nxe5 6. d4 c6 7. dxe5 Nxe4 8. Bd3 d5 9. exd6 Nf6 10. Re1+ Be6 11. Bf5 0-0 12. Bxe6 fxe6 13. Rxe6 Qd7 14. Re7 Qf5 15. Be3 Bxd6 16. Rxb7 Ng4 17. Bd4 Bxh2+ 18. Kh1 Be5 19. Bxe5 Nxf2+ 20. Kg1 Qxe5 21. Qd2 Rad8 0-1

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.12"]
[Round "8"]
[White "Cortlever, Nicolaas"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "E02"]
[PlyCount "74"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Bd5 8. Qc2 Nc6 9. 0-0 Bxf3 10. exf3 Nxd4 11. Qd3 Qd7 12. f4 c5 13. b4 cxb4 14. Bb2 Rd8 15. a3 Nc6 16. Qxd7+ Rxd7 17. Rc1 Nd5 18. Bxd5 Rxd5 19. axb4 Bxb4 20. Bxg7 Rg8 21. Bb2 Kd7 22. Nc3 Bxc3 23. Rxc3 a5 24. Kf1 b5 25. Rac1 Rc8 26. Rc5 Ne7 27. Rxd5+ Nxd5 28. Rxc8 Kxc8 29. Ke2 Kd7 30. Kd3 Kc6 31. Bg7 b4 32. Kd4 Kb5 33. f5 a4 34. fxe6 fxe6 35. Kd3 a3 36. g4 b3 37. h4 Nb4+ 0-1

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.11"]
[Round "7"]
[White "Vlagsma, Chris"]
[Black "Van den Tol, Theo P"]
[Result "1/2-1/2"]
[ECO "E48"]
[PlyCount "36"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nge2 d5 7. a3 dxc4 8. Bxc4 cxd4 9. exd4 Be7 10. 0-0 Nc6 11. Bf4 a6 12. d5 exd5 13. Nxd5 Nxd5 14. Bxd5 Bg4 15. Re1 Qb6 16. h3 Bh5 17. Qd2 Rfd8 18. Nc3 Bf6 1/2-1/2

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.10"]
[Round "6"]
[White "Stoltz, Gosta"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "A93"]
[PlyCount "120"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 e6 4. Nbd2 f5 5. g3 Nf6 6. Bg2 Be7 7. 0-0 0-0 8. b3 Bd7 9. Bb2 Be8 10. Ng5 Qc8 11. f3 Na6 12. Nh3 Nc7 13. e4 Bf7 14. Qe2 Re8 15. Kh1 g6 16. Nf4 Kg7 17. Nd3 h6 18. Ne5 Nd7 19. exf5 exf5 20. f4 Nf6 21. Nxf7 Kxf7 22. Nf3 Qe6 23. Qc2 Bd6 24. c5 Bf8 25. Ne5+ Kg7 26. Rae1 Ne4 27. g4 Kh7 28. gxf5 gxf5 29. Bh3 Be7 30. Qe2 Rg8 31. Qh5 Raf8 32. Bc1 Ne8 33. Be3 Ng7 34. Qf3 Ne8 35. b4 N8f6 36. a4 a6 37. Rc1 Rg7 38. b5 Rfg8 39. bxc6 bxc6 40. Qe2 Rg3 41. Rf3 Rxf3 42. Qxf3 Bd8 43. Rg1 Rxg1+ 44. Kxg1 Ng8 45. Qh5 Ne7 46. Kh1 Nf6 47. Qf7+ Qxf7 48. Nxf7 Bc7 49. Bf1 a5 50. Bd3 Ne4 51. Ne5 Kg7 52. Kg2 Kf6 53. h4 Ke6 54. Be2 Nc3 55. Bh5 Nxa4 56. Bf7+ Kf6 57. Be8 Nc3 58. Nxc6 Nxc6 59. Bxc6 Ke6 60. Kf3 Ne4 1/2-1/2

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.09"]
[Round "5"]
[White "Vlagsma, Chris"]
[Black "Koomen, Willem"]
[Result "1-0"]
[ECO "D49"]
[PlyCount "65"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Ng4 12. Nbxd4 Qa5+ 13. Bd2 Qd5 14. Qe2 Bb7 15. Bc4 Qe4 16. Bd3 Qxe2+ 17. Bxe2 Ngxe5 18. Bc3 Bd6 19. Rd1 Ke7 20. 0-0 Rhc8 21. Rfe1 g6 22. Nxe5 Nxe5 23. f4 Nc4 24. f5 Ne3 25. f6+ Kxf6 26. Nc6+ Kg5 27. Rxd6 Nf5 28. Rd7 Bxc6 29. Rxf7 h5 30. Bd2+ Kh4 31. Rf1 e5 32. R1xf5 gxf5 33. Rg7 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.08"]
[Round "4"]
[White "Kramer, Haije J"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "D96"]
[PlyCount "72"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. cxd5 cxd5 7. Bg5 Nc6 8. e3 e6 9. Bb5 Bd7 10. Ne5 0-0 11. Bxc6 Bxc6 12. Nxc6 bxc6 13. 0-0 Qa5 14. Bf4 c5 15. dxc5 Qxc5 16. Rac1 Rfc8 17. Be5 Ne4 18. Nxe4 Qxc1 19. Bc3 Qxf1+ 20. Kxf1 dxe4 21. Bxg7 Kxg7 22. Qb4 Rc1+ 23. Ke2 Rc2+ 24. Ke1 Rd8 25. g4 h6 26. h4 Rd5 27. Qxe4 Rxb2 28. g5 hxg5 29. hxg5 Rxa2 30. f4 Rh2 31. Qc4 a5 32. e4 Rdd2 33. Qc3+ Kh7 34. Qc7 Kg8 35. Qc8+ Kh7 36. Qc7 Rde2+ 1/2-1/2

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.07"]
[Round "3"]
[White "De Groot, Adriaan"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "C82"]
[PlyCount "80"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qe2 0-0 11. Be3 Qe7 12. h3 Bxe3 13. Qxe3 Na5 14. Nbd2 Nxd2 15. Nxd2 Rad8 16. f4 f5 17. exf6 Qxf6 18. Rae1 Bf7 19. Qc5 Qd6 20. Qf2 c5 21. Bc2 d4 22. Ne4 Qc6 23. Qh4 d3 24. Ng5 h6 25. Nxf7 Kxf7 26. Bd1 Kg8 27. f5 Qf6 28. Qg3 c4 29. Qc7 Nc6 30. Re6 Rc8 31. Qb6 Qg5 32. Rxc6 Rxc6 33. Qxc6 Qe3+ 34. Kh1 Qd2 35. Qe6+ Kh8 36. Qe7 Rg8 37. f6 gxf6 38. Qxf6+ Rg7 39. Bf3 Qg5 40. Qxg5 hxg5 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.06"]
[Round "2"]
[White "Vlagsma, Chris"]
[Black "Van Scheltinga, Theo D"]
[Result "0-1"]
[ECO "C77"]
[PlyCount "74"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. d3 0-0 8. c3 d6 9. Nbd2 Na5 10. Bc2 c5 11. Nf1 Nc6 12. Ng3 Qc7 13. 0-0 Re8 14. Ne1 d5 15. f4 exf4 16. Bxf4 Bd6 17. Bxd6 Qxd6 18. Qf2 Be6 19. exd5 Qxd5 20. h3 Ne5 21. a3 Rad8 22. Rd1 Qc6 23. Nf3 Nxf3+ 24. Qxf3 Qxf3 25. Rxf3 Bd5 26. Rf2 Bc6 27. Rdd2 a5 28. Rfe2 b4 29. Rxe8+ Rxe8 30. d4 bxc3 31. bxc3 cxd4 32. Rxd4 Kf8 33. Kf2 Rb8 34. Nf5 Rb2 35. Rd8+ Be8 36. Ne3 Ke7 37. Ra8 Ba4 0-1

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.05"]
[Round "1"]
[White "Van Steenis, Hendrik Jan"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "B70"]
[PlyCount "85"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Bg4 7. Qd3 Qc8 8. Bg2 Nbd7 9. 0-0 Nc5 10. Qb5+ Bd7 11. Qe2 Bg7 12. Nb3 Nxb3 13. axb3 0-0 14. Bg5 Re8 15. Ra2 Bc6 16. b4 b5 17. Nd5 Qb7 18. Qd2 Bxd5 19. exd5 Nd7 20. Rc1 Bf6 21. Be3 Rec8 22. Bh3 Rc7 23. Bxd7 Rxd7 24. b3 a6 25. c4 Rb8 26. Rb1 Rc8 27. Qd3 e6 28. dxe6 fxe6 29. Re2 d5 30. c5 e5 31. Qd2 d4 32. Bg5 Qf3 33. Bxf6 Qxf6 34. Rbe1 Re7 35. Re4 Rce8 36. Qd3 Re6 37. Kg2 Kg7 38. Qe2 Kf7 39. f4 exf4 40. Rxe6 Rxe6 41. Qxe6+ Qxe6 42. Rxe6 Kxe6 43. gxf4 1-0

[Event "Hoogoveens (6-players)"]
[Site "Beverwijk"]
[Date "1942.01.02"]
[Round "3"]
[White "Cortlever, Nicolaas"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "D28"]
[PlyCount "43"]
[EventDate "1942.01.01"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 a6 5. Bxc4 e6 6. 0-0 c5 7. Qe2 Nc6 8. Rd1 b5 9. Bb3 c4 10. Bc2 Nb4 11. Nc3 Nxc2 12. Qxc2 Bb7 13. d5 exd5 14. e4 Be7 15. e5 Nd7 16. Nxd5 0-0 17. Qf5 Bc8 18. Bg5 Bxg5 19. Nxg5 g6 20. Qf4 Kg7 21. e6 fxe6 22. Nxe6+ 1-0

[Event "Hoogoveens (6-players)"]
[Site "Beverwijk"]
[Date "1942.01.02"]
[Round "2"]
[White "Van Steenis, Hendrik Jan"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "C57"]
[PlyCount "37"]
[EventDate "1942.01.01"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Nxe4 5. Bxf7+ Ke7 6. d4 h6 7. Nxe4 Kxf7 8. dxe5 Qe8 9. f4 d6 10. 0-0 Kg8 11. Nbc3 dxe5 12. f5 Qf7 13. Nd5 Bd7 14. f6 g6 15. Ne7+ Bxe7 16. fxe7 Qxe7 17. Nf6+ Kg7 18. Qxd7 Qxd7 19. Nxd7 1-0

[Event "Hoogoveens (6-players)"]
[Site "Beverwijk"]
[Date "1942.01.01"]
[Round "1"]
[White "Vlagsma, Chris"]
[Black "Euwe, Max"]
[Result "0-1"]
[ECO "C70"]
[PlyCount "92"]
[EventDate "1942.01.01"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. 0-0 b5 7. Bb3 Na5 8. c3 Nxb3 9. axb3 Be7 10. b4 0-0 11. Qe2 Bg4 12. Rd1 c6 13. Nbd2 a5 14. bxa5 Rxa5 15. Rxa5 Qxa5 16. Nf1 b4 17. c4 Nd7 18. Ne3 Bh5 19. g4 Bg6 20. Nf5 Re8 21. N3h4 Bxh4 22. Nxh4 Nc5 23. f3 Ne6 24. Be3 Ra8 25. Nf5 Qc7 26. d4 c5 27. d5 Bxf5 28. dxe6 Bxe6 29. Qd3 Ra6 30. Kg2 h5 31. h3 Qe7 32. Kg3 f6 33. f4 hxg4 34. hxg4 Qf7 35. b3 exf4+ 36. Bxf4 Qg6 37. Qf3 Ra2 38. Rd2 Ra1 39. Be3 Re1 40. g5 fxg5 41. Kf2 g4 42. Qf4 Rh1 43. Rxd6 Qh5 44. Bd2 Qh3 45. Ke2 g3 46. Be3 Qg2+ 0-1

[Event "Rotterdam Kamstra Beker"]
[Site "Rotterdam"]
[Date "1940.07.06"]
[Round "7"]
[White "Sammelius, Carel JR"]
[Black "Vlagsma, Chris"]
[Result "0-1"]
[ECO "D35"]
[PlyCount "78"]
[EventDate "1940.04.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bg5 Be7 7. e3 0-0 8. Bd3 Re8 9. 0-0 Nf8 10. Ne5 c6 11. f4 N6d7 12. Bxe7 Qxe7 13. Kh1 f6 14. Nf3 Qf7 15. Qd2 Nb6 16. b3 Bd7 17. e4 Bg4 18. e5 Bxf3 19. Rxf3 f5 20. Rg1 Ne6 21. Qf2 Nc8 22. g4 Ne7 23. gxf5 Nxf5 24. Ne2 Rac8 25. h4 h6 26. Kh2 c5 27. dxc5 Nxc5 28. Bxf5 Qxf5 29. Rfg3 Re7 30. Qg2 Qd7 31. Nd4 Ne4 32. Rg6 Rc7 33. f5 Rxe5 34. Ne6 Rxe6 35. Rxe6 Qd8 36. Rxh6 Qc8 37. Kh1 Qxf5 38. Rf1 Ng3+ 39. Qxg3 Qxf1+ 0-1

[Event "Rotterdam Kamstra Beker"]
[Site "Rotterdam"]
[Date "1940.06.22"]
[Round "5"]
[White "Vlagsma, Chris"]
[Black "Kmoch, Hans"]
[Result "1/2-1/2"]
[ECO "B14"]
[PlyCount "69"]
[EventDate "1940.04.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. a3 cxd4 8. exd4 Bxc3+ 9. bxc3 dxc4 10. Bxc4 Qc7 11. Qd3 Bd7 12. Ne5 Rc8 13. Bd2 Nc6 14. Nxd7 Nxd7 15. Bb3 Na5 16. Bc2 Nf8 17. 0-0 Nc4 18. Be1 b5 19. f4 g6 20. g4 Re8 21. Bg3 Qc6 22. Qe2 Nd6 23. Rf3 Rac8 24. Rb1 a6 25. a4 Nd7 26. axb5 axb5 27. Qf1 Nf6 28. f5 Nxg4 29. fxg6 fxg6 30. Bxd6 Qxd6 31. Qh3 Rxc3 32. Rxc3 Qxd4+ 33. Kg2 Qd2+ 34. Kg1 Qd4+ 35. Kg2 1/2-1/2

[Event "Rotterdam Kamstra Beker"]
[Site "Rotterdam"]
[Date "1940.05.04"]
[Round "4"]
[White "Euwe, Max"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "C86"]
[PlyCount "79"]
[EventDate "1940.04.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Qe2 d6 7. c3 Bg4 8. Rd1 0-0 9. d4 Qc8 10. Bxc6 bxc6 11. dxe5 dxe5 12. Bg5 Qe6 13. Nbd2 Bd6 14. h3 Bxf3 15. Qxf3 Nd7 16. Qg4 Qxg4 17. hxg4 f6 18. Be3 Bc5 19. Nc4 Bxe3 20. Rxd7 Bb6 21. Rad1 Rf7 22. Kf1 Re8 23. Nxb6 cxb6 24. R1d6 Rxd7 25. Rxd7 Re6 26. Ra7 a5 27. a4 Kf8 28. Rb7 c5 29. Ke2 Rd6 30. g3 Kg8 31. g5 fxg5 32. Re7 h6 33. Rxe5 Kf7 34. Rf5+ Ke7 35. f4 gxf4 36. gxf4 g6 37. Re5+ Re6 38. Rxe6+ Kxe6 39. Kf3 c4 40. Kg4 1/2-1/2

[Event "Rotterdam Kamstra Beker"]
[Site "Rotterdam"]
[Date "1940.04.27"]
[Round "3"]
[White "Vlagsma, Chris"]
[Black "Mulder, Emile AJM"]
[Result "1-0"]
[ECO "E40"]
[PlyCount "85"]
[EventDate "1940.04.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 5. g3 e5 6. Bg2 exd4 7. exd4 0-0 8. Nge2 d5 9. c5 Bg4 10. f3 Bf5 11. 0-0 Bxc3 12. Nxc3 h6 13. g4 Be6 14. Bf4 Nh7 15. Qd2 Ne7 16. Rae1 Qd7 17. Bg3 g5 18. h3 Ng6 19. f4 gxf4 20. Bxf4 Nxf4 21. Qxf4 Kg7 22. Qe5+ Kg8 23. Bxd5 Rad8 24. Bxe6 fxe6 25. Qxe6+ Qxe6 26. Rxe6 Rxd4 27. Rxf8+ Kxf8 28. Rxh6 Ng5 29. Rh5 Ne6 30. Re5 Kf7 31. Ne4 Rd3 32. h4 Nd4 33. Kg2 Nc2 34. Kf2 Nb4 35. a3 Nc6 36. Ng5+ Kg7 37. Re4 Rd2+ 38. Re2 Rd5 39. b4 Ne5 40. Ne6+ Kf6 41. Nxc7 Nxg4+ 42. Kg3 Rd4 43. Nb5 1-0

[Event "Den Haag Keusbeker08"]
[Site "The Hague"]
[Date "1939.12.25"]
[Round "3"]
[White "Vlagsma, Chris"]
[Black "Fontein, George Salto"]
[Result "0-1"]
[ECO "C98"]
[PlyCount "92"]
[EventDate "1939.12.23"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. Nbd2 0-0 12. h3 Nc6 13. d5 Nd8 14. Nf1 Ne8 15. Ne3 g6 16. g4 f6 17. Kh2 Nf7 18. Rg1 Kh8 19. Qe2 Bd7 20. Bd2 Rg8 21. Rg3 Bf8 22. Ng2 Bh6 23. Rg1 Bxd2 24. Qxd2 Ng7 25. Ngh4 a5 26. g5 Nh5 27. gxf6 Nxg3 28. Ng5 Nxg5 29. Qxg5 Raf8 30. Rxg3 Qd8 31. Rf3 Rf7 32. Kg1 Rgf8 33. Kh2 Rxf6 34. Rxf6 Qxf6 35. Qxf6+ Rxf6 36. Kg3 Bxh3 37. Kxh3 Rxf2 38. Bd1 Rd2 39. Bg4 Rxb2 40. Bd7 b4 41. cxb4 axb4 42. Bb5 Rxa2 43. Nf3 h6 44. Kg3 Rc2 45. Ne1 b3 46. Bd3 Rd2 0-1

[Event "Den Haag Keusbeker08"]
[Site "The Hague"]
[Date "1939.12.24"]
[Round "2"]
[White "Vlagsma, Chris"]
[Black "Wijnans, Artur Joseph"]
[Result "1-0"]
[ECO "B72"]
[PlyCount "103"]
[EventDate "1939.12.23"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. h3 Bg7 7. g4 Nc6 8. Be3 Qa5 9. Bg2 Nd7 10. 0-0 Nxd4 11. Bxd4 Bxd4 12. Qxd4 Qe5 13. Rad1 Qxd4 14. Rxd4 Nb6 15. Nb5 0-0 16. b3 Bd7 17. Na3 a5 18. c4 Bc6 19. f4 Nd7 20. Rfd1 Nc5 21. f5 Kg7 22. Nc2 g5 23. Ne3 Rfe8 24. Kf2 Rac8 25. R1d2 b5 26. cxb5 Bxb5 27. Nd5 Nd7 28. Bf1 Bxf1 29. Kxf1 Ne5 30. Ke2 Rc1 31. Rd1 Rc6 32. f6+ exf6 33. Ne3 Re6 34. Rxd6 Rcxd6 35. Rxd6 Nc6 36. Nf5+ Kf8 37. Kd2 Rxd6+ 38. Nxd6 Ke7 39. Nc4 Kd7 40. Kc3 Ke7 41. a3 Ke6 42. b4 axb4+ 43. axb4 Na7 44. Kd4 Nb5+ 45. Kc5 Nc3 46. Nd6 Ke5 47. b5 Nxb5 48. Nxb5 Kxe4 49. Nd6+ Kf4 50. Kd5 Kg3 51. Nxf7 Kxh3 52. Nh6 1-0

[Event "BEL-NED m"]
[Site "Brussels"]
[Date "1939.04.30"]
[Round "2.5"]
[White "Van Seters, Frits"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "C83"]
[PlyCount "92"]
[EventDate "1939.04.29"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Belgium"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Nxe4 7. d4 d5 8. dxe5 Be6 9. c3 Be7 10. Bc2 0-0 11. Qe2 Nc5 12. Nd4 Qd7 13. b4 Nb7 14. Nxe6 Qxe6 15. Qd3 g6 16. f4 f5 17. Bb3 Rad8 18. Rd1 Kg7 19. a4 Na7 20. axb5 Nxb5 21. Bxd5 Qc8 22. Qe2 c5 23. bxc5 Nxc5 24. Be3 Ne4 25. Bxe4 Rxd1+ 26. Qxd1 Nxc3 27. Nxc3 Qxc3 28. Qd4 Qxd4 29. Bxd4 fxe4 30. Rxa6 Rxf4 31. Ra7 Kf8 32. e6 Bb4 33. Rxh7 e3 34. Bxe3 Re4 35. Kf2 Rxe6 36. Kf3 Be7 37. Bd4 Re1 38. h4 Rh1 39. g3 Re1 40. Be3 Rf1+ 41. Kg4 Rf5 42. Bh6+ Ke8 43. Rg7 Ra5 44. Rxg6 Ra4+ 45. Bf4 Kf7 46. Rh6 Bf6 1-0

[Event "BEL-NED m"]
[Site "Brussels"]
[Date "1939.04.29"]
[Round "1.5"]
[White "Vlagsma, Chris"]
[Black "Van Seters, Frits"]
[Result "1-0"]
[ECO "E40"]
[PlyCount "83"]
[EventDate "1939.04.29"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Belgium"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "BEL"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 5. g3 e5 6. Bg2 Qe7 7. Nge2 Bxc3+ 8. bxc3 0-0 9. c5 d5 10. cxd6 Qxd6 11. 0-0 Re8 12. Rb1 Rb8 13. Qc2 Bg4 14. f3 Bd7 15. Rd1 b5 16. e4 Na5 17. f4 Qb6 18. Kh1 Ng4 19. Ng1 Nc4 20. Qe2 exf4 21. Bxf4 f5 22. h3 Nf6 23. e5 Ne4 24. Bxe4 fxe4 25. Qxe4 Bc6 26. d5 Ba8 27. Nf3 c6 28. Qxc4 bxc4 29. Rxb6 axb6 30. d6 c5 31. Kg2 Kf7 32. Kf2 Bxf3 33. Kxf3 Red8 34. d7 Rb7 35. Rd6 h6 36. e6+ Ke7 37. Ke4 b5 38. Rc6 b4 39. Kd5 bxc3 40. Bd6+ Kf6 41. Bxc5 Kf5 42. Be7 1-0

[Event "Match/Nation ENG-NED (5-5) (5,5-4,5)"]
[Site "London"]
[Date "1938.06.06"]
[Round "2.10"]
[White "Vlagsma, Chris"]
[Black "Lenton, Alfred"]
[Result "1/2-1/2"]
[ECO "B15"]
[PlyCount "83"]
[EventDate "1938.06.05"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "England"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng3 e5 6. Nf3 exd4 7. Qxd4 Qxd4 8. Nxd4 Bc5 9. Nb3 Bb6 10. Bd3 0-0 11. 0-0 Be6 12. Bd2 Nbd7 13. Rad1 Ne5 14. Bf5 Bc4 15. Rfe1 Neg4 16. Nh1 Rfe8 17. h3 Ne5 18. Bc3 Bc7 19. Nd2 Ba6 20. Ne4 Nd5 21. Nc5 Nxc3 22. bxc3 Bc4 23. Nxb7 g6 24. Bd3 Nxd3 25. cxd3 Bxd3 26. Ng3 Bc4 27. Ne4 Kg7 28. a3 Rab8 29. Nbd6 Bxd6 30. Nxd6 Rxe1+ 31. Rxe1 Be6 32. Re4 Rb1+ 33. Kh2 Rb3 34. Ra4 Rxc3 35. Rxa7 Rc2 36. Kg3 Kf6 37. Ne4+ Kg7 38. a4 c5 39. Rc7 c4 40. a5 Ra2 41. Nd6 Ra3+ 42. f3 1/2-1/2

[Event "Match/Nation ENG-NED (5-5) (5,5-4,5)"]
[Site "London"]
[Date "1938.06.05"]
[Round "1.10"]
[White "Lenton, Alfred"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "A09"]
[PlyCount "83"]
[EventDate "1938.06.05"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. c4 dxc4 3. Na3 a6 4. Nxc4 b5 5. Na3 Bb7 6. d4 e6 7. Nc2 c5 8. e3 Nf6 9. b3 Nbd7 10. Be2 Be7 11. 0-0 0-0 12. Bb2 Rc8 13. Nd2 Qb6 14. Rc1 Rfd8 15. Qe1 Ne4 16. Nxe4 Bxe4 17. f3 Bg6 18. Kh1 Nf6 19. Qf2 cxd4 20. Bxd4 Qa5 21. e4 Qxa2 22. Na1 h6 23. Rxc8 Rxc8 24. Qe3 Qa3 25. Bd3 Nd7 26. f4 f6 27. f5 Bf7 28. fxe6 Bxe6 29. e5 f5 30. g4 Bd5+ 31. Kg1 Bg5 32. Qf2 fxg4 33. Qf5 Nf8 34. Qxc8 Be7 35. Qxg4 Qa2 36. Rf2 Qa5 37. Rf1 Qd2 38. e6 Bg5 39. Rxf8+ Kxf8 40. Qf5+ Bf6 41. Bc5+ Ke8 42. Qh5+ 1-0

[Event "NED-ch10 sf-A"]
[Site "Rotterdam"]
[Date "1938.04.24"]
[Round "7"]
[White "Mulder, Emile AJM"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "D59"]
[PlyCount "41"]
[EventDate "1938.04.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 0-0 6. e3 h6 7. Bh4 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Rc1 Bb7 11. Qa4 Rc8 12. Be2 c5 13. 0-0 cxd4 14. Nxd5 exd5 15. Rxc8+ Bxc8 16. Nxd4 Bd7 17. Qb3 Qc5 18. Bf3 Be6 19. Rd1 Nd7 20. Nxe6 fxe6 21. Bxd5 1-0

[Event "NED-ch10 sf-A"]
[Site "Rotterdam"]
[Date "1938.04.23"]
[Round "5"]
[White "Kok, Theo"]
[Black "Vlagsma, Chris"]
[Result "1/2-1/2"]
[ECO "C29"]
[PlyCount "82"]
[EventDate "1938.04.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. exd5 Nxd5 5. fxe5 Nxc3 6. bxc3 Qh4+ 7. Ke2 Qe4+ 8. Kf2 Qxe5 9. Nf3 Qh5 10. Rb1 Be7 11. Qe1 Nc6 12. Bb5 Be6 13. Qe5 Qxe5 14. Nxe5 0-0 15. Nxc6 bxc6 16. Bxc6 Rab8 17. Ra1 Rb6 18. Ba4 c5 19. d3 Bd5 20. Re1 Bf6 21. Bd2 c4 22. Reb1 Rfb8 23. Rxb6 Rxb6 24. Re1 h6 25. dxc4 Bxc4 26. Bb3 Rc6 27. Re8+ Kh7 28. Ra8 a6 29. Bxc4 Rxc4 30. Rxa6 Bxc3 31. Ke2 Be5 32. c3 Bxh2 33. a4 Be5 34. a5 f6 35. Ra8 Bxc3 36. Kd3 Bxa5 37. Rxa5 Rg4 38. Be3 Rxg2 39. Ra1 g5 40. Bd4 Rg3+ 41. Kc2 Rg2+ 1/2-1/2

[Event "NED-ch10 sf-A"]
[Site "Rotterdam"]
[Date "1938.04.16"]
[Round "2"]
[White "Vlagsma, Chris"]
[Black "Polak, JAJ"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "48"]
[EventDate "1938.04.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c6 2. Ne2 d5 3. e5 Bg4 4. f3 Bf5 5. Ng3 Bd7 6. d4 e6 7. Nd2 c5 8. dxc5 Bxc5 9. Nb3 h5 10. Nxc5 Qa5+ 11. c3 Qxc5 12. Bd3 h4 13. Ne2 Nc6 14. f4 0-0-0 15. b4 Qb6 16. a4 f6 17. exf6 Nxf6 18. a5 Qc7 19. 0-0 Kb8 20. Nd4 Nxd4 21. cxd4 Qc3 22. Be3 Bb5 23. Bxb5 Qxe3+ 24. Kh1 Ne4 0-1

[Event "NED-ch10 sf-A"]
[Site "Rotterdam"]
[Date "1938.04.15"]
[Round "1"]
[White "Vlagsma, Chris"]
[Black "Prins, Lodewijk"]
[Result "0-1"]
[ECO "C56"]
[PlyCount "108"]
[EventDate "1938.04.15"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 e5 3. Bc4 Nf6 4. d4 Nxe4 5. dxe5 Nc5 6. 0-0 Ne6 7. Nc3 b6 8. Qe2 Bb7 9. Be3 Be7 10. Rad1 0-0 11. a3 Qe8 12. Nb5 a6 13. Bxe6 fxe6 14. Nxc7 Qg6 15. Bxb6 Nxe5 16. Qxe5 Bxf3 17. Qg3 Qxg3 18. hxg3 Bxd1 19. Nxa8 Bxc2 20. Rc1 Be4 21. Nc7 Rb8 22. Bd4 Bb7 23. Rd1 Kf7 24. Ba7 Rc8 25. Bb6 d6 26. b4 d5 27. b5 axb5 28. Nxb5 Rc2 29. Rb1 Ra2 30. Rb3 Ba6 31. Nc7 Bc8 32. Nb5 Bd7 33. Bd4 Rd2 34. Bb2 Bc5 35. a4 Rxf2 36. Kh2 Bc6 37. Nd4 Rxb2 38. Rf3+ Ke7 39. Nxc6+ Kd6 40. Nd8 Kd7 41. Nf7 Bd4 42. Ng5 h6 43. Nh7 Ra2 44. Nf8+ Kd6 45. Rf7 Bf6 46. Ra7 e5 47. g4 e4 48. Nd7 e3 49. Nxf6 gxf6 50. Kg3 d4 51. Ra8 Kd5 52. a5 e2 53. Kf2 d3 54. Re8 Ra1 0-1

