[Event "NED-FRA corr"]
[Site "Netherlands"]
[Date "1991.??.??"]
[Round "?"]
[White "Vertadier, Pierre"]
[Black "Vinken, Alex"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "71"]
[EventDate "1991.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. b4 Bb6 6. Qb3 0-0 7. d3 d6 8. a4 a5 9. b5 Ne7 10. 0-0 h6 11. Ba3 Ng6 12. Nbd2 Nf4 13. d4 Qd7 14. Kh1 Qg4 15. Rg1 Qh5 16. Qc2 Ng4 17. Nf1 Be6 18. Ng3 Qg6 19. Ba2 Qf6 20. Rgf1 h5 21. Ne2 g5 22. Nxf4 gxf4 23. d5 Bd7 24. c4 Qg6 25. c5 Ba7 26. Rac1 Bxc5 27. Bxc5 dxc5 28. Qxc5 Qxe4 29. Qe7 Qxa4 30. Qg5+ Kh7 31. Qxh5+ Nh6 32. Bb1+ f5 33. Nxe5 f3 34. Qg6+ Kh8 35. Qxh6+ Kg8 36. gxf3 1-0

[Event "Match/Nation NED-RSA"]
[Site "Telegraph"]
[Date "1952.??.??"]
[Round "1.5"]
[White "Vinken, Alex"]
[Black "Ackerman, T."]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "73"]
[EventDate "1952.??.??"]
[EventType "team"]
[EventRounds "1"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. Nbd2 Bd6 5. Bg5 Nbd7 6. e3 0-0 7. Bd3 e5 8. dxe5 Nxe5 9. Nxe5 Bxe5 10. c3 h6 11. Bh4 Re8 12. Qc2 c5 13. 0-0-0 Qa5 14. f4 Bd6 15. Bxf6 gxf6 16. Rde1 Qxa2 17. Qd1 Qa1+ 18. Nb1 d4 19. Qh5 dxc3 20. bxc3 c4 21. Bh7+ Kg7 22. Kd1 Bd7 23. Bf5 Ba4+ 24. Ke2 Qb2+ 25. Kf3 Bc6+ 26. e4 Rad8 27. Re2 Qb5 28. Nd2 Bc7 29. g3 Rd3+ 30. Kg2 Qb2 31. Qg4+ Kf8 32. Nb1 Qb5 33. Rhe1 Red8 34. Kh3 h5 35. Qh4 Kg7 36. e5 R3d6 37. Na3 1/2-1/2

[Event "NED-ch16 sf"]
[Site "Amsterdam"]
[Date "1951.08.24"]
[Round "11"]
[White "Van Donk, Henk"]
[Black "Vinken, Alex"]
[Result "0-1"]
[ECO "C90"]
[PlyCount "56"]
[EventDate "1951.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 d6 8. c3 Na5 9. Bc2 c5 10. a4 Rb8 11. axb5 axb5 12. d4 Qc7 13. dxe5 dxe5 14. Nxe5 Qxe5 15. Rxa5 Ng4 16. g3 Qh5 17. h4 Bxh4 18. gxh4 Qxh4 19. Qf3 Qh2+ 20. Kf1 Ne5 21. Qg3 Qh1+ 22. Ke2 Qh5+ 23. f3 Nxf3 24. Qxb8 Ne5+ 25. Kd2 Qh2+ 26. Kd1 0-0 27. Qxb5 Bg4+ 28. Re2 Rd8+ 0-1

[Event "NED-ch16 sf"]
[Site "Amsterdam"]
[Date "1951.08.18"]
[Round "6"]
[White "Vinken, Alex"]
[Black "Van Steenis, Hendrik Jan"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "63"]
[EventDate "1951.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[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. Bf4 e6 4. Nbd2 c5 5. e3 b6 6. c3 Bd6 7. Bb5+ Ke7 8. Ne5 Bb7 9. Qf3 h6 10. h4 Qc7 11. g4 Nc6 12. Bxc6 Bxc6 13. g5 hxg5 14. hxg5 Rxh1+ 15. Qxh1 Nd7 16. Ndf3 Rg8 17. Qh7 Kf8 18. Kd2 cxd4 19. exd4 Nxe5 20. Bxe5 Bb5 21. Re1 Bxe5 22. Nxe5 Qd8 23. Qh4 Ke7 24. Rh1 Qf8 25. Rh3 Be8 26. Rf3 Rh8 27. Qf4 f6 28. Ng4 f5 29. Qc7+ Bd7 30. Ne5 Qc8 31. Ng6+ Kf7 32. Nxh8+ 1-0

[Event "NED-ch16 sf"]
[Site "Amsterdam"]
[Date "1951.08.17"]
[Round "5"]
[White "Seewald, Pieter C"]
[Black "Vinken, Alex"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "51"]
[EventDate "1951.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. e5 f6 5. exf6 Nxf6 6. Nf3 Bd6 7. Bg5 0-0 8. Qd2 Qe8 9. Bd3 e5 10. dxe5 Nxe5 11. 0-0-0 Nxd3+ 12. Qxd3 c6 13. Rde1 Qf7 14. Bh4 Bg4 15. Bg3 Bxg3 16. hxg3 Bxf3 17. gxf3 Rae8 18. f4 Rxe1+ 19. Rxe1 Re8 20. Rxe8+ Qxe8 21. Qe3 Qxe3+ 22. fxe3 Kf7 23. Kd2 Ke6 24. Ke2 Kf5 25. Kf3 h5 26. Ne2 1/2-1/2

[Event "NED-ch16 sf"]
[Site "Amsterdam"]
[Date "1951.08.16"]
[Round "4"]
[White "Vinken, Alex"]
[Black "Karper, Jacob G"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "77"]
[EventDate "1951.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 d6 4. Nbd2 Bg7 5. e3 0-0 6. Bd3 Nc6 7. c3 Qe8 8. Bg5 e5 9. 0-0 h6 10. Bxf6 Bxf6 11. h3 Bg7 12. d5 Ne7 13. e4 f5 14. Nh2 f4 15. Be2 h5 16. Ndf3 Bf6 17. Kh1 Kg7 18. Ng1 Rh8 19. c4 b6 20. b4 a5 21. a3 axb4 22. axb4 Rxa1 23. Qxa1 g5 24. f3 Ng8 25. Qa7 Qf7 26. Rc1 Nh6 27. c5 bxc5 28. bxc5 Bd7 29. cxd6 Rc8 30. Ba6 Bd8 31. Bxc8 Bxc8 32. dxc7 Bf6 33. Qa8 Qd7 34. Qc6 Qf7 35. Ra1 g4 36. Ra8 g3 37. Rxc8 gxh2 38. Qe8 hxg1Q+ 39. Kxg1 1-0

[Event "NED-ch16 sf"]
[Site "Amsterdam"]
[Date "1951.08.15"]
[Round "3"]
[White "Orbaan, Constant"]
[Black "Vinken, Alex"]
[Result "0-1"]
[ECO "C03"]
[PlyCount "145"]
[EventDate "1951.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 f5 4. exf5 exf5 5. Ndf3 Nf6 6. Ne5 Be7 7. Bg5 0-0 8. Bxf6 Bxf6 9. f4 c5 10. c3 cxd4 11. cxd4 g5 12. Qd2 gxf4 13. 0-0-0 Bxe5 14. dxe5 Be6 15. Nf3 Nc6 16. Kb1 Rc8 17. Bd3 Qb6 18. Ng5 Ne7 19. g4 fxg4 20. Nxh7 Bf5 21. Nxf8 Rxf8 22. Rhg1 Qg6 23. Ka1 Rf7 24. Bxf5 Qxf5 25. Qd4 Rg7 26. Qxa7 Nc6 27. Qc5 d4 28. Qd6 Qxe5 29. Qxe5 Nxe5 30. Rxd4 Nf3 31. Rd8+ Kh7 32. Rg2 Nh4 33. Rf2 f3 34. Kb1 Kg6 35. Kc2 Ng2 36. Kd3 Rh7 37. Rd6+ Kg5 38. Rd5+ Kh4 39. Ke4 Re7+ 40. Re5 Rh7 41. Re8 Kh3 42. Kf5 Nh4+ 43. Kg5 g3 44. hxg3 Kxg3 45. Rf1 Kg2 46. Rc1 f2 47. Re2 Nf3+ 48. Kg4 Rh2 49. b4 Nh4 50. Kg5 Kg3 51. Rf1 Nf3+ 52. Kf6 b5 53. Ke7 Nd4 54. Rb2 Kf3 55. Kd6 Ke3 56. Kc5 Rh5+ 57. Kb6 Rf5 58. a3 Ne2 59. Rc2 Nd4 60. Rc5 Rf6+ 61. Kb7 Ke2 62. Rfc1 f1Q 63. Re5+ Kd2 64. Rxf1 Rxf1 65. Kb6 Kd3 66. Kc5 Rc1+ 67. Kb6 Rc6+ 68. Kb7 Rc3 69. Rh5 Kc4 70. Rc5+ Kb3 71. Kb6 Rc4 72. Rxb5 Nxb5 73. Kxb5 0-1

[Event "NED-ch16 sf"]
[Site "Amsterdam"]
[Date "1951.08.14"]
[Round "2"]
[White "Vinken, Alex"]
[Black "Stumpers, Louis F"]
[Result "1-0"]
[ECO "B03"]
[PlyCount "115"]
[EventDate "1951.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5 6. Nf3 e6 7. Be3 Na6 8. a3 c5 9. Nc3 dxe5 10. dxe5 Be7 11. Be2 0-0 12. 0-0 Qxd1 13. Raxd1 Rad8 14. Rxd8 Rxd8 15. Ne1 h5 16. b3 g6 17. Bf3 Rd7 18. Rf2 Nb8 19. Rd2 Rxd2 20. Bxd2 Nc6 21. Bxc6 bxc6 22. a4 Nd7 23. a5 g5 24. g3 gxf4 25. gxf4 Bh4 26. Na2 Nb8 27. Nf3 Bd8 28. Kf2 Na6 29. Ke3 Bc2 30. Nc1 Bd1 31. Ng5 Nb4 32. Bxb4 cxb4 33. a6 Bb6+ 34. Kd2 Bg4 35. Nd3 Bf5 36. c5 Bd8 37. Ke3 f6 38. Ne4 fxe5 39. Nxe5 Bxe4 40. Kxe4 Be7 41. Nd3 Kf7 42. Kd4 Bf6+ 43. Kc4 Ke7 44. Ne5 Bxe5 45. fxe5 Kf7 46. Kxb4 Kg6 47. Kc4 Kg5 48. Kd4 Kg4 49. Ke3 Kg5 50. Kd4 Kg4 51. b4 Kh3 52. b5 cxb5 53. c6 Kxh2 54. c7 h4 55. c8Q h3 56. Qxe6 Kg2 57. Qxh3+ Kxh3 58. e6 1-0

[Event "NED-ch16 sf"]
[Site "Amsterdam"]
[Date "1951.08.13"]
[Round "1"]
[White "Vinken, Alex"]
[Black "Bouwmeester, Hans"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "63"]
[EventDate "1951.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 Qe7 8. Kh1 Ne6 9. f4 Nxf4 10. Bxf4 exf4 11. e5 Ne4 12. Qd4 Ng5 13. Qxf4 Ne6 14. Qg3 0-0 15. Nc3 Qc5 16. Bd3 d5 17. b4 Qc6 18. Rad1 Rd8 19. Qh4 h6 20. Rf3 Ng5 21. Nb5 Be6 22. Rg3 Qd7 23. Rf1 b6 24. Qf4 Kh8 25. Rxg5 hxg5 26. Qxg5 Kg8 27. Rf3 Kf8 28. Nd4 c6 29. Bg6 Qe7 30. Qh5 Qxb4 31. Nxe6+ Ke8 32. Rxf7 1-0

[Event "Match/Nation GER-NED"]
[Site "Duesseldorf"]
[Date "1951.??.??"]
[Round "1.8"]
[White "Jaeger, Walter"]
[Black "Vinken, Alex"]
[Result "0-1"]
[ECO "A16"]
[PlyCount "106"]
[EventDate "1951.??.??"]
[EventType "team"]
[EventRounds "2"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 c6 2. g3 d5 3. cxd5 cxd5 4. d4 Nc6 5. Bg2 Nf6 6. Nc3 Bf5 7. e3 e6 8. a3 Rc8 9. Nge2 Bd6 10. 0-0 Qd7 11. f3 e5 12. g4 exd4 13. exd4 Be6 14. g5 Ng8 15. f4 Nge7 16. Be3 Bh3 17. Ng3 h6 18. g6 fxg6 19. Qf3 Bxg2 20. Qxg2 0-0 21. Nxd5 Nf5 22. Nxf5 Rxf5 23. Nc3 Re8 24. Qd2 Rh5 25. Rf3 g5 26. Raf1 Rxe3 27. Qxe3 gxf4 28. Rxf4 Bxf4 29. Rxf4 Rg5+ 30. Kh1 Ne7 31. Qf2 Qc6+ 32. Qf3 Qg6 33. Qf1 Rg4 34. Rxg4 Qxg4 35. Qc4+ Kh7 36. Qd3+ Qf5 37. Qxf5+ Nxf5 38. d5 Nd6 39. Kg2 Kg6 40. Kf3 Kf6 41. b3 Ke5 42. Ke3 Nc8 43. Kd3 g5 44. a4 Nd6 45. h3 h5 46. Ne2 Kxd5 47. Ng3 h4 48. Nf1 Ke5 49. Ke3 a5 50. Kf3 Kd4 51. Kg4 Ne4 52. Nh2 Ke3 53. Kf5 b6 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.25"]
[Round "9"]
[White "Vinken, Alex"]
[Black "Baay, Jacob G"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "59"]
[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. c3 d5 4. Qa4 Nf6 5. Nxe5 Bd6 6. Nxc6 bxc6 7. d4 Nxe4 8. Ba6 0-0 9. Bxc8 Rxc8 10. Qxc6 Re8 11. 0-0 Re6 12. Qb5 Qh4 13. f4 Rh6 14. h3 Rg6 15. Rf3 c6 16. Qf1 Re8 17. Be3 Ng3 18. Qf2 Nf5 19. Nd2 Rg3 20. Rxg3 Qxg3 21. Qxg3 Nxg3 22. Kf2 Nf5 23. Re1 g5 24. g4 Nxe3 25. Rxe3 Rxe3 26. Kxe3 Bxf4+ 27. Ke2 Kg7 28. Nb3 Bc7 29. Nc5 f6 30. Ne6+ 1-0

[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 "Vinken, Alex"]
[Black "Van Mindeno, Siegfried Bernard"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "91"]
[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. c3 Nf6 4. d4 Nxe4 5. d5 Bc5 6. dxc6 Bxf2+ 7. Ke2 d5 8. Nbd2 Nxd2 9. Bxd2 Bb6 10. cxb7 Bxb7 11. Qa4+ c6 12. Nxe5 0-0 13. Kd1 Qd6 14. Nf3 Rfe8 15. Bd3 c5 16. Qh4 h6 17. Qf4 Qxf4 18. Bxf4 c4 19. Bc2 d4 20. Nxd4 Bxd4 21. cxd4 Rad8 22. Re1 Rxd4+ 23. Bd2 Red8 24. Re2 Rg4 25. Ke1 Rxg2 26. Rxg2 Bxg2 27. Be3 Bf3 28. Bxa7 Re8+ 29. Kd2 Re2+ 30. Kc3 Rxh2 31. Re1 Bc6 32. Rd1 Kf8 33. Rd6 Bb5 34. Bc5 Ke8 35. Rb6 Rh3+ 36. Kb4 Rh2 37. Bf5 Kd8 38. Kxb5 Rxb2+ 39. Kc6 c3 40. Rxb2 cxb2 41. a4 g6 42. Bb6+ Ke7 43. Bb1 h5 44. a5 h4 45. a6 h3 46. Bc7 1-0

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.22"]
[Round "6"]
[White "Henneberke, Frans"]
[Black "Vinken, Alex"]
[Result "1-0"]
[ECO "A84"]
[PlyCount "59"]
[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. e3 f5 5. f4 Nf6 6. Nf3 Bd6 7. Bd2 0-0 8. c5 Bc7 9. b4 Bd7 10. Be2 Be8 11. 0-0 Nbd7 12. b5 Ne4 13. bxc6 bxc6 14. Rb1 h6 15. Qc2 Ndf6 16. Ne5 g5 17. Ba6 Bxe5 18. fxe5 Nh5 19. Nxe4 fxe4 20. Rxf8+ Kxf8 21. Bb7 Rb8 22. Qa4 Bd7 23. Ba5 Qe8 24. Bc7 Ng7 25. Qxa7 Rxb7 26. Rxb7 Qh5 27. Rb1 Be8 28. Bd8 Nf5 29. Qh7 Bf7 30. Bf6 1-0

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.19"]
[Round "5"]
[White "Vinken, Alex"]
[Black "Barendregt, Johan"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "72"]
[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. Bc4 Nf6 4. Nc3 Bc5 5. d3 d6 6. Bg5 Na5 7. 0-0 c6 8. a3 Nxc4 9. dxc4 Bb6 10. h3 h6 11. Bh4 g5 12. Bg3 g4 13. hxg4 Bxg4 14. Qd3 Nh5 15. Bh4 Qd7 16. Rad1 Rg8 17. Kh2 Rg6 18. Bg3 Nxg3 19. fxg3 0-0-0 20. b4 Qe7 21. Na4 Bc7 22. b5 Rdg8 23. bxc6 Bh5 24. Qb3 bxc6 25. Rb1 Rxg3 26. Qb7+ Kd8 27. Qa8+ Kd7 28. Nc5+ dxc5 29. Rbd1+ Bd6 30. Qb7+ Ke6 31. Rxd6+ Qxd6 32. Nh4 R3g4 33. Nf5 Rxg2+ 34. Kh1 Rh2+ 35. Kxh2 Qd2+ 36. Kh3 Qg2+ 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.18"]
[Round "4"]
[White "Van Scheltinga, Theo D"]
[Black "Vinken, Alex"]
[Result "1-0"]
[ECO "D52"]
[PlyCount "99"]
[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. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd5 8. Qd2 Bb4 9. Rc1 h6 10. Bh4 N7b6 11. a3 Bxc3 12. bxc3 Qxa3 13. c4 Ne7 14. Bd3 Nf5 15. c5 Nxh4 16. Nxh4 Nd5 17. 0-0 b5 18. e4 Qb4 19. Qa2 Nf4 20. Rfd1 e5 21. Nf5 Bxf5 22. exf5 Qxd4 23. Bc4 Qe4 24. Bxf7+ Kf8 25. f3 Qxf5 26. Bb3 a5 27. Rd6 e4 28. Qd2 Re8 29. fxe4 Qxe4 30. Rf1 g5 31. g3 Qe3+ 32. Qxe3 Rxe3 33. Bd1 Ke7 34. gxf4 gxf4 35. Bf3 Rg8+ 36. Kf2 Rg5 37. Rxc6 a4 38. Rb1 Rb3 39. Re1+ Kf7 40. Rc7+ Kf6 41. Rc6+ Kg7 42. Re7+ Kf8 43. Rb7 Re5 44. Bh5 Rb2+ 45. Kf3 Re7 46. Rc8+ Kg7 47. Rxe7+ Kf6 48. Rf7+ Kg5 49. Rg8+ Kh4 50. Rxf4+ 1-0

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.17"]
[Round "3"]
[White "Vinken, Alex"]
[Black "Prins, Lodewijk"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "102"]
[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. Nc3 Nc6 3. f4 e6 4. Nf3 a6 5. Be2 b5 6. 0-0 d5 7. Kh1 Nge7 8. e5 Nf5 9. d3 h5 10. Qe1 Bb7 11. Nd1 Nb4 12. Qd2 d4 13. c4 bxc4 14. a3 Nxd3 15. Bxd3 cxd3 16. Qxd3 h4 17. h3 Ng3+ 18. Kh2 Nxf1+ 19. Qxf1 Be7 20. Nf2 0-0 21. Bd2 Qd5 22. Qd3 Bc6 23. Re1 Rfb8 24. b4 Bb5 25. Qb1 c4 26. Re4 d3 27. Qd1 Be8 28. Rd4 Qc6 29. Bc3 Rd8 30. Re4 Qa4 31. Qxa4 Bxa4 32. Nd2 Rac8 33. Ng4 Bc6 34. Re1 Bd5 35. Ne3 Rd7 36. f5 Bg5 37. fxe6 fxe6 38. a4 Rf7 39. Nxd5 exd5 40. Nf3 Bf4+ 41. Kg1 d2 42. Rd1 Be3+ 43. Kh2 d4 44. Nxd4 Bxd4 45. Bxd4 c3 46. Bxc3 Rxc3 47. Rxd2 Re7 48. Rd4 g5 49. Rd6 Kg7 50. Rxa6 Rxe5 51. Kg1 Re2 0-1

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.16"]
[Round "2"]
[White "Kramer, Haije J"]
[Black "Vinken, Alex"]
[Result "1-0"]
[ECO "E18"]
[PlyCount "65"]
[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. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 0-0 7. Qc2 d5 8. cxd5 exd5 9. 0-0 Nbd7 10. Rd1 c5 11. Bf4 h6 12. Rac1 a6 13. dxc5 bxc5 14. Ne5 g5 15. Nxd7 Qxd7 16. Be5 d4 17. Bxb7 Qxb7 18. Bxf6 Bxf6 19. Ne4 Be7 20. Nxc5 Bxc5 21. Qxc5 Qxb2 22. Rc2 Qb7 23. Qd6 d3 24. exd3 Qf3 25. Rdc1 Kg7 26. Rc6 f6 27. Rc7+ Kg6 28. Qd7 Rae8 29. Qh7+ Kh5 30. h3 f5 31. Re7 Qd5 32. Rc4 Rxe7 33. g4+ 1-0

[Event "NED-ch14 sf"]
[Site "Nijmegen"]
[Date "1948.11.15"]
[Round "1"]
[White "Stumpers, Louis F"]
[Black "Vinken, Alex"]
[Result "0-1"]
[ECO "E21"]
[PlyCount "66"]
[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. Nf3 0-0 5. Bg5 h6 6. Bh4 d5 7. e3 c5 8. a3 Bxc3+ 9. bxc3 Qa5 10. Qb3 Ne4 11. Rc1 Nc6 12. Bd3 cxd4 13. exd4 f5 14. cxd5 exd5 15. Bg3 Rf7 16. Be5 Be6 17. 0-0 Rc8 18. Rfe1 Nxe5 19. Nxe5 Rfc7 20. Bxe4 fxe4 21. Re3 b5 22. f3 Qb6 23. Rb1 a6 24. a4 Rxc3 25. Rxc3 Qxd4+ 26. Re3 b4 27. Kf1 Qxe5 28. Qxb4 Qxh2 29. Qb2 Bf5 30. Qa2 Kh8 31. Rb4 Rc1+ 32. Kf2 Qh4+ 33. Ke2 Qe1# 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 "1947.05.10"]
[Round "2"]
[White "Thomas, George Alan"]
[Black "Vinken, Alex"]
[Result "1-0"]
[ECO "C12"]
[PlyCount "61"]
[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. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. Bxc3 Ne4 8. Bb4 Nc6 9. Bb5 Qg5 10. g3 Qf5 11. f3 Bd7 12. Bxc6 Bxc6 13. Qd3 Ng5 14. Qc3 Kd7 15. h4 Ne4 16. g4 Nxc3 17. gxf5 Nb5 18. fxe6+ Kxe6 19. 0-0-0 a5 20. Be1 a4 21. Ne2 Na7 22. Rg1 g6 23. Bb4 Rag8 24. Rg2 Nc8 25. Rdg1 Nb6 26. Nf4+ Kf5 27. Bd2 g5 28. b3 axb3 29. axb3 Ra8 30. Rxg5+ hxg5 31. Rxg5# 1-0

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.11.02"]
[Round "7"]
[White "Vinken, Alex"]
[Black "Van Scheltinga, Theo D"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "79"]
[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 c5 2. Nc3 e6 3. f4 d5 4. exd5 exd5 5. Bb5+ Nc6 6. Bxc6+ bxc6 7. Nf3 Bd6 8. d3 Qc7 9. Ne2 Ne7 10. 0-0 0-0 11. Kh1 Bd7 12. c3 Rae8 13. d4 f6 14. Qe1 Ng6 15. Qf2 cxd4 16. Nfxd4 c5 17. Nc2 Bb5 18. Re1 Bxe2 19. Rxe2 Bxf4 20. Bxf4 Qxf4 21. Qxf4 Nxf4 22. Rd2 Re5 23. Rad1 c4 24. Nb4 Rfe8 25. h3 Re2 26. b3 Nxg2 27. Nxd5 Nh4 28. Rxe2 Rxe2 29. Rf1 Rxa2 30. bxc4 Kf7 31. Nb4 Rd2 32. Rf4 g5 33. Rd4 Rxd4 34. cxd4 a5 35. Nc2 a4 36. d5 Ke7 37. c5 Ng6 38. Nd4 a3 39. d6+ Ke8 40. c6 1-0

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.11.01"]
[Round "6"]
[White "Wellner, Jan"]
[Black "Vinken, Alex"]
[Result "0-1"]
[ECO "C06"]
[PlyCount "74"]
[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 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 f6 9. exf6 Nxf6 10. 0-0 cxd4 11. Nexd4 Nxd4 12. Nxd4 Be7 13. Re1 0-0 14. Qe2 e5 15. Qxe5 Bd6 16. Qg5 Bd7 17. Rb1 Ng4 18. Qxd5+ Kh8 19. f4 Rae8 20. Rxe8 Rxe8 21. Bd2 Nf6 22. Qb3 Qc7 23. Rf1 Bc5 24. Kh1 Bxd4 25. cxd4 Bc6 26. Qa3 a6 27. Qc5 Qd7 28. Bf5 Re2 29. d5 Nxd5 30. Qc2 Ne3 31. Bxe3 Bxg2+ 32. Kg1 Rxc2 33. Rd1 Qe7 34. Bb6 Rd2 35. Rxd2 Qe1+ 36. Kxg2 Qxd2+ 37. Bf2 Qd5+ 0-1

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.31"]
[Round "5"]
[White "Vinken, Alex"]
[Black "Pruyt, PH."]
[Result "1/2-1/2"]
[ECO "C78"]
[PlyCount "100"]
[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 b5 6. Bb3 Be7 7. c3 Nxe4 8. Re1 Nf6 9. Nxe5 Nxe5 10. Rxe5 0-0 11. d4 d5 12. Bg5 c6 13. Bc2 Re8 14. Qe2 Bd7 15. Nd2 Bd6 16. Rxe8+ Qxe8 17. Qd3 g6 18. Bxf6 Bf5 19. Qf1 Bxc2 20. Nf3 Qe6 21. Be5 Bxe5 22. dxe5 c5 23. Qe2 Be4 24. Nd2 Bf5 25. h3 h5 26. Nb3 Rc8 27. Re1 Qb6 28. Qe3 a5 29. Rc1 a4 30. Nd2 Rd8 31. Nf3 Kg7 32. Rd1 b4 33. Kh2 bxc3 34. bxc3 Rd7 35. Rd2 Kh7 36. Qf4 Kg7 37. Qxa4 Qc7 38. Qh4 Qb6 39. g4 Be4 40. Ng5 Qb1 41. f3 Qc1 42. Nxe4 Rb7 43. Qf6+ Kg8 44. Qg5 Rb1 45. Nf6+ Kg7 46. Nxh5+ Kh7 47. Nf6+ Kg7 48. Kg3 Qe1+ 49. Rf2 Qg1+ 50. Rg2 Qe1+ 1/2-1/2

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.30"]
[Round "4"]
[White "Van den Tol, Theo P"]
[Black "Vinken, Alex"]
[Result "1-0"]
[ECO "D47"]
[PlyCount "81"]
[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. Nf3 Nf6 2. c4 c6 3. d4 d5 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 b4 9. Ne4 Bb7 10. Nxf6+ Nxf6 11. e4 Be7 12. Bg5 Nd7 13. Be3 Rc8 14. Rc1 Qa5 15. 0-0 Ba6 16. Bxa6 Qxa6 17. d5 c5 18. Bf4 exd5 19. Qxd5 Nf6 20. Qe5 Qe6 21. Qxe6 fxe6 22. Rc4 Nd7 23. b3 0-0 24. Be3 Rfd8 25. Rfc1 Bf6 26. R4c2 h6 27. Kf1 Be7 28. Ke2 a5 29. Rd1 Kf8 30. h3 a4 31. Ne1 axb3 32. axb3 Ra8 33. Nd3 Ra5 34. Nxc5 Bxc5 35. Bxc5+ Ke8 36. Bxb4 Rb5 37. Bc3 Rc8 38. Rcc1 g6 39. b4 Rc4 40. f3 Ke7 41. Bf6+ 1-0

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.29"]
[Round "3"]
[White "Vinken, Alex"]
[Black "Henneberke, Frans"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "129"]
[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 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 d5 5. Bb5 d4 6. Ne2 Qc7 7. Bxc6+ Qxc6 8. d3 Nf6 9. 0-0 Be7 10. Ng3 Qc7 11. Qe1 b6 12. Bd2 Ba6 13. b3 Bb7 14. f5 e5 15. Nxe5 Bd6 16. Nc4 Be5 17. Nxe5 Qxe5 18. Bf4 Qe7 19. Bg5 Qe5 20. Bxf6 Qxf6 21. Qd2 0-0 22. Qf4 Rfe8 23. Rae1 Qe5 24. Nh5 Qxf4 25. Nxf4 Re5 26. g4 Rd8 27. Ng2 b5 28. Nh4 Rd6 29. Nf3 Re8 30. Nd2 Ra6 31. Ra1 Bc6 32. a3 Bb7 33. Rfb1 Rh6 34. Kg2 Ba8 35. a4 a6 36. axb5 axb5 37. Kg3 Bb7 38. h4 Rb6 39. Kf4 f6 40. Ra7 Kf8 41. Re1 Re5 42. g5 Kg8 43. gxf6 gxf6 44. h5 Kf8 45. h6 Re7 46. e5 fxe5+ 47. Rxe5 Rc7 48. Re6 Rxe6 49. fxe6 Re7 50. Ke5 Bc8 51. Rxe7 Kxe7 52. Ne4 Bxe6 53. Nxc5 Bg4 54. Kxd4 Kf6 55. c4 bxc4 56. dxc4 Kg6 57. b4 Kxh6 58. b5 Kg5 59. b6 Bc8 60. Ne4+ Kf4 61. Nd6 Ba6 62. c5 h5 63. c6 h4 64. b7 Bxb7 65. cxb7 1-0

[Event "NED-ch Voorwedstrijden Leiden-B"]
[Site "Leiden"]
[Date "1946.10.28"]
[Round "2"]
[White "Vinken, Alex"]
[Black "Prins, Lodewijk"]
[Result "0-1"]
[ECO "C90"]
[PlyCount "70"]
[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. h3 Na5 9. c3 Nxb3 10. Qxb3 Bb7 11. d3 0-0 12. a4 Bc6 13. axb5 axb5 14. Rxa8 Qxa8 15. Qa3 Qb7 16. b3 Nd7 17. Qa2 Nc5 18. Qc2 b4 19. c4 f5 20. Nbd2 Bd7 21. d4 exd4 22. Nxd4 fxe4 23. Nxe4 Nxe4 24. Qxe4 Qxe4 25. Rxe4 Bf6 26. f4 Ra8 27. Be3 c5 28. Nb5 Bxb5 29. cxb5 d5 30. Re6 c4 31. Ra6 Rb8 32. bxc4 b3 33. Ra4 b2 34. Rb4 Bc3 35. Rb3 dxc4 0-1

[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 "Vinken, Alex"]
[Black "Van Scheltinga, Theo D"]
[Result "1/2-1/2"]
[ECO "D04"]
[PlyCount "80"]
[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. Nf3 Nf6 3. e3 Bf5 4. Bd3 e6 5. Bxf5 exf5 6. Qd3 Qc8 7. 0-0 Bd6 8. Nbd2 c6 9. c4 Na6 10. a3 Nc7 11. b4 Be7 12. Bb2 0-0 13. Rfc1 dxc4 14. Nxc4 Nfd5 15. g3 Qe6 16. Qf1 Rfe8 17. Nce5 a5 18. bxa5 Rxa5 19. Rab1 Nb5 20. Nc4 Ra6 21. Nfe5 Rea8 22. Nd3 Ra4 23. Nc5 Bxc5 24. dxc5 Qe7 25. Qd3 g6 26. Nb6 Nxb6 27. cxb6 Nxa3 28. Qc3 f6 29. Ra1 Kg7 30. Rd1 Nb5 31. Qd3 Rxa1 32. Bxa1 Rf8 33. h4 h5 34. Qd7 Qxd7 35. Rxd7+ Rf7 36. Rd8 Re7 37. Bb2 Kf7 38. Kf1 Re8 39. Rd7+ Re7 40. Rd8 Re8 1/2-1/2

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.28"]
[Round "8"]
[White "Prins, Lodewijk"]
[Black "Vinken, Alex"]
[Result "1-0"]
[ECO "C07"]
[PlyCount "117"]
[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 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. exd5 Qxd5 6. Bc4 Qd8 7. 0-0 Nf6 8. Nb3 Be7 9. Qe2 0-0 10. Nbxd4 Bd7 11. Rd1 Nd5 12. Nf5 Bf6 13. Bxd5 exd5 14. Rxd5 Qc7 15. Bg5 Bxg5 16. Nxg5 Bxf5 17. Rxf5 Nc6 18. Qc4 Rac8 19. c3 Ne7 20. Qxc7 Rxc7 21. Rf4 h6 22. Nf3 Nc6 23. Re4 Rd7 24. Rae1 f6 25. h4 Kf7 26. Kh2 Rfd8 27. a3 Rd1 28. Rxd1 Rxd1 29. Kg3 Rd3 30. Re2 g5 31. hxg5 hxg5 32. Rd2 Rxd2 33. Nxd2 f5 34. Kf3 Ne5+ 35. Ke3 Ng4+ 36. Ke2 Kf6 37. f3 Ne5 38. Ke3 Ke6 39. Kd4 b6 40. b4 Ng6 41. g3 Ne5 42. b5 Nd7 43. a4 Ne5 44. c4 Nd7 45. Nb3 Kd6 46. a5 Ne5 47. axb6 axb6 48. f4 gxf4 49. gxf4 Ng6 50. Ke3 Nh4 51. Kf2 Ng6 52. Kg3 Nf8 53. Kf3 Ng6 54. Ke3 Nh4 55. Nd4 Ng2+ 56. Kf3 Nxf4 57. Kxf4 Kc5 58. Nc6 Kxc4 59. Na7 1-0

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.27"]
[Round "7"]
[White "Vinken, Alex"]
[Black "Doerner, Charles"]
[Result "1/2-1/2"]
[ECO "C28"]
[PlyCount "80"]
[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. Nc3 Nc6 3. Bc4 Nf6 4. f4 Nxe4 5. Nf3 Nd6 6. Qe2 Nxc4 7. Qxc4 d6 8. d4 Nxd4 9. Nxd4 exd4 10. Qxd4 c6 11. 0-0 Qb6 12. Qxb6 axb6 13. Be3 b5 14. Rae1 f6 15. f5 Kf7 16. a3 Bd7 17. g4 h6 18. h4 Be7 19. Ne4 d5 20. Nc5 Bxc5 21. Bxc5 Rhe8 22. Kf2 Rxe1 23. Rxe1 Re8 24. Rxe8 Kxe8 25. Kf3 h5 26. Bf2 hxg4+ 27. Kf4 Kf7 28. h5 g3 29. Bxg3 c5 30. c3 d4 31. cxd4 cxd4 32. Bf2 d3 33. Be1 Ke7 34. Ke4 Be8 35. h6 gxh6 36. Kxd3 Bc6 37. Bb4+ Kd7 38. Ke3 h5 39. Be1 Kd6 40. Kf4 Bd5 1/2-1/2

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.25"]
[Round "6"]
[White "Euwe, Max"]
[Black "Vinken, Alex"]
[Result "1/2-1/2"]
[ECO "E23"]
[PlyCount "97"]
[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 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Qa5 7. Bd2 Qxc5 8. e3 0-0 9. a3 Bxc3 10. Bxc3 Ne4 11. Bd3 Nxc3 12. Qxc3 b6 13. 0-0 Bb7 14. Rad1 Rad8 15. Be4 f5 16. b4 Qe7 17. Bxc6 Bxc6 18. Ne5 Ba4 19. Rd2 d6 20. Nf3 Be8 21. Ne1 Bf7 22. Nc2 Rc8 23. Rfd1 d5 24. Qe5 Rxc4 25. Nd4 Qc7 26. Qxc7 Rxc7 27. Nb5 Rd7 28. Rc1 e5 29. Rc6 Rfd8 30. f4 exf4 31. exf4 d4 32. Rc1 g6 33. a4 d3 34. Rc3 a6 35. Nc7 Rc8 36. Nd5 Rxc3 37. Nf6+ Kg7 38. Nxd7 b5 39. axb5 axb5 40. Nc5 Bc4 41. Kf2 Rc1 42. Nxd3 Bxd3 43. Rxd3 Rc4 44. Kf3 Rxb4 45. Rd7+ Kh6 46. h3 Rb3+ 47. Kf2 b4 48. Rb7 Rb2+ 49. Kf3 1/2-1/2

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.24"]
[Round "5"]
[White "Vinken, Alex"]
[Black "Wolthuis, Willem"]
[Result "1-0"]
[ECO "B03"]
[PlyCount "73"]
[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 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nf3 e6 9. a3 Bg4 10. Nbd2 Be7 11. Be2 f6 12. 0-0 Qd7 13. b4 0-0 14. Nb3 fxe5 15. Nc5 Bxc5 16. bxc5 Bxf3 17. gxf3 Nc8 18. dxe5 Nxe5 19. f4 Qf7 20. fxe5 Qg6+ 21. Kh1 Qe4+ 22. Rf3 Rxf3 23. Bxf3 Qxe3 24. Bxb7 Rb8 25. Qd8+ Kf7 26. Rf1+ Kg6 27. Qe8+ Kh6 28. Qxe6+ g6 29. Bg2 Qxc5 30. Qh3+ Kg7 31. Bd5 h5 32. Qh4 Qe3 33. Qf6+ Kh7 34. Rg1 g5 35. Qf5+ Kh6 36. Be4 Ne7 37. Qh7# 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 "Vinken, Alex"]
[Black "Soultanbeieff, Victor Ivanovich"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "123"]
[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. Nc3 Nc6 3. f4 e6 4. Nf3 d5 5. Bb5 a6 6. Bxc6+ bxc6 7. e5 Ne7 8. d3 h5 9. 0-0 Nf5 10. Ne2 a5 11. c4 a4 12. Ng3 Nxg3 13. hxg3 Be7 14. Be3 0-0 15. Qc2 Qb6 16. Rfb1 d4 17. Bf2 Bd7 18. Nd2 Rfb8 19. Qd1 g6 20. Ne4 Kg7 21. Be1 Qc7 22. b3 a3 23. Bd2 Rb7 24. Qc2 Rh8 25. Rf1 Rbb8 26. Rf3 Qa7 27. Rb1 Rb7 28. Qd1 Rbb8 29. Qe1 Qb6 30. Rf1 Qc7 31. Nf6 Bxf6 32. exf6+ Kxf6 33. Ba5 Qd6 34. Qe5+ Qxe5 35. fxe5+ Kg7 36. Bc7 Rb7 37. Bd6 Rd8 38. Rf2 Be8 39. Bxc5 Ra8 40. Rd1 Rd7 41. Rf4 g5 42. Re4 Ra5 43. b4 Rxc5 44. bxc5 Rb7 45. Rde1 Kf8 46. Kf2 Ke7 47. Rxd4 f6 48. exf6+ Kxf6 49. Rd8 Bd7 50. Ra8 e5 51. Rxa3 Bg4 52. Rb3 Ra7 53. Ra1 Ra5 54. a4 e4 55. d4 Be6 56. Rb4 Kf5 57. Ke3 Kg4 58. Ra3 Kxg3 59. Kxe4+ Kg4 60. d5 Bd7 61. Kd4 h4 62. Rb7 1-0

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.21"]
[Round "2"]
[White "Devos, Paul"]
[Black "Vinken, Alex"]
[Result "1/2-1/2"]
[ECO "D28"]
[PlyCount "82"]
[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. c4 c6 2. Nf3 d5 3. e3 e6 4. d4 a6 5. Nc3 Nf6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 c5 9. Qe2 c4 10. Bc2 Nc6 11. 0-0 Bb7 12. Rd1 Nb4 13. Bb1 Be7 14. e4 Nd3 15. e5 Nxc1 16. Rxc1 Nd5 17. Ne4 Rc8 18. h4 h6 19. a4 Qb6 20. axb5 axb5 21. Ng3 g6 22. Qd2 b4 23. Ne4 b3 24. Ra4 Ba6 25. Qa5 Bb5 26. Qxb6 Nxb6 27. Ra7 Na4 28. Nfd2 Nxb2 29. Nxb3 Bc6 30. Nbd2 Bd5 31. Bc2 c3 32. Nb1 Bxe4 33. Bxe4 Bxh4 34. Rxc3 Rxc3 35. Nxc3 0-0 36. Nb5 Nc4 37. g3 Bd8 38. Rb7 h5 39. Kg2 h4 40. Na7 hxg3 41. Kxg3 f5 1/2-1/2

[Event "Maastricht"]
[Site "Maastricht"]
[Date "1946.04.20"]
[Round "1"]
[White "Vinken, Alex"]
[Black "Alexander, Conel Hugh O'Donel"]
[Result "0-1"]
[ECO "C86"]
[PlyCount "136"]
[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. Qe2 b5 7. Bb3 0-0 8. c3 d6 9. h3 Be6 10. Bc2 d5 11. Ng5 Nxe4 12. Nxe4 dxe4 13. Qxe4 g6 14. d3 Qd7 15. f4 Bc5+ 16. Kh2 Bf5 17. Qf3 Rad8 18. Nd2 exf4 19. Ne4 Bxe4 20. dxe4 g5 21. Qh5 f6 22. Bxf4 Qe7 23. Bg3 Rd2 24. Bb3+ Kh8 25. Rad1 Rxb2 26. Rd5 Bd6 27. Bxd6 cxd6 28. Qf3 Ne5 29. Qe3 Ng6 30. Rd2 Rxd2 31. Qxd2 Qxe4 32. Qxd6 Qe5+ 33. Qxe5 Nxe5 34. Rd1 Rc8 35. Rd6 Rc6 36. Rd8+ Kg7 37. Ra8 f5 38. Ra7+ Kg6 39. Re7 Kf6 40. Rxh7 Rxc3 41. Rh6+ Ng6 42. Bd1 g4 43. hxg4 fxg4 44. g3 Kg5 45. Rh7 Ne5 46. Rg7+ Kf5 47. Rg8 Ke4 48. Bxg4 Rc2+ 49. Kh3 Rxa2 50. Bc8 b4 51. Bb7+ Kd4 52. Rd8+ Kc3 53. Rc8+ Kd2 54. Rd8+ Nd3 55. g4 Ra3 56. Be4 Ke3 57. Bh7 Rc3 58. Bxd3 Rxd3 59. Ra8 Rd6 60. g5 Rb6 61. Re8+ Kd4 62. Rd8+ Ke5 63. Kg4 b3 64. Re8+ Kd4 65. Rd8+ Kc3 66. Rc8+ Kb4 67. Rc1 b2 68. Rf1 Ka3 0-1

[Event "NED corr"]
[Site "Netherlands"]
[Date "1946.??.??"]
[Round "?"]
[White "Vinken, Alex"]
[Black "Van der Kuyl, J."]
[Result "1-0"]
[ECO "C81"]
[PlyCount "39"]
[EventDate "1946.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "NED"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[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. Qe2 Bc5 10. c4 bxc4 11. Bxc4 Bxf2+ 12. Kh1 0-0 13. Bd3 Bb6 14. Nbd2 f5 15. exf6 Qxf6 16. Nxe4 dxe4 17. Qxe4 Bf5 18. Qd5+ Qe6 19. Bc4 Nd8 20. Ng5 1-0

