[Event "Ghent Taminco op 32nd"]
[Site "Ghent"]
[Date "2009.07.21"]
[Round "7"]
[White "Diekstra, Johnny"]
[Black "Marcziter, Dmitrii"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "2238"]
[PlyCount "60"]
[EventDate "2009.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. h3 Bh5 8. 0-0 Nc6 9. Be3 cxd4 10. cxd4 Be7 11. Nc3 Qd6 12. a3 0-0 13. Qb3 a6 14. Rfd1 Rfd8 15. Rac1 Rac8 16. Qb6 Rd7 17. g4 Bg6 18. Ne5 Bd8 19. Qb3 Na5 20. Qa2 Rdc7 21. Bf4 Nd5 22. Bg3 Nxc3 23. bxc3 Rxc3 24. Nxg6 Rxg3+ 25. fxg3 Qxg3+ 26. Kf1 Qxh3+ 27. Kf2 Rxc1 28. Rxc1 hxg6 29. Rc8 Kh7 30. Ke1 Bg5 0-1

[Event "Leeuwarden op"]
[Site "Leeuwarden"]
[Date "2004.??.??"]
[Round "3"]
[White "Hoeksema, Hendrik Pieter"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2375"]
[PlyCount "85"]
[EventDate "2004.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 103 Extra"]
[Source "ChessBase"]
[SourceDate "2005.01.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.01.01"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 d4 3. Nce2 d3 4. cxd3 Qxd3 5. Nc3 Qd8 6. d4 e5 7. dxe5 Qxd1+ 8. Kxd1 Bc5 9. Nd5 Kd8 10. Bg5+ f6 11. exf6 gxf6 12. Nxf6 Be7 13. e5 h6 14. Bh4 Nd7 15. Nf3 Ndxf6 16. exf6 Nxf6 17. Ne5 Be6 18. Kc2 c6 19. Rd1+ Kc7 20. Ng6 Bf5+ 21. Bd3 Bxg6 22. Bxg6 Rhg8 23. Rhe1 Nd5 24. Bg3+ Bd6 25. Bf7 Rg5 26. Bxd5 Bxg3 27. hxg3 cxd5 28. Re7+ Kb6 29. Re6+ Kb5 30. Rxh6 Re5 31. Rh4 Rc8+ 32. Kd3 Rce8 33. Rf4 a5 34. g4 Rg5 35. Rh1 Rge5 36. Rh5 Re2 37. Rxd5+ Kc6 38. Rxa5 Rxb2 39. Rf6+ Kc7 40. Rc5+ Kb8 41. Rc2 Rb4 42. f3 Ra4 43. g5 1-0

[Event "Leeuwarden op"]
[Site "Leeuwarden"]
[Date "2004.??.??"]
[Round "5"]
[White "Knight, David"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "31"]
[EventDate "2004.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 103 Extra"]
[Source "ChessBase"]
[SourceDate "2005.01.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.01.01"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 g6 5. Bc4 Bg7 6. 0-0 0-0 7. c3 Nb6 8. Bb3 N8d7 9. Re1 h6 10. Bf4 e6 11. Ne5 Nf6 12. Nd2 Nbd7 13. Ndf3 c6 14. Qd3 Nh5 15. Bd2 Qf6 16. Ng4 1-0

[Event "Ghent op 20th"]
[Site "Ghent"]
[Date "1997.??.??"]
[Round "1"]
[White "Diekstra, Johnny"]
[Black "Weemaes, Ronald"]
[Result "0-1"]
[ECO "B22"]
[BlackElo "2290"]
[PlyCount "64"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nc3 Nxc3 7. bxc3 Qc7 8. Bd2 b6 9. Bd3 Bb7 10. Nf3 d6 11. 0-0 Nd7 12. Re1 Be7 13. exd6 Bxd6 14. Be4 Bxe4 15. Rxe4 Nf6 16. Qa4+ Qd7 17. Qxd7+ Kxd7 18. Ree1 Rhc8 19. a4 Nd5 20. Ng5 Ke7 21. Ne4 Rc4 22. a5 b5 23. a6 b4 24. Nxd6 Kxd6 25. cxb4 Rb8 26. Red1 Rb6 27. Be3 Rbxb4 28. Rdb1 Kc6 29. h4 Kb5 30. Rxb4+ Rxb4 31. Rc1 Kxa6 32. Rc8 h5 0-1

[Event "Leeuwarden op"]
[Site "Leeuwarden"]
[Date "1995.??.??"]
[Round "4"]
[White "Van Pelt, Alexander"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "E92"]
[PlyCount "81"]
[EventDate "1995.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. e4 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 c6 10. Nxe5 Re8 11. 0-0-0 Na6 12. f4 h6 13. Bh4 g5 14. Bg3 Nc5 15. Rhe1 Nfxe4 16. Nxe4 Nxe4 17. Nxf7 Nxg3 18. hxg3 Rxe2 19. Rxe2 Bg4 20. Re7 Bxd1 21. Kxd1 Rf8 22. Nd6 Rd8 23. Re8+ Rxe8 24. Nxe8 Bxb2 25. Nd6 b6 26. Nc8 Bd4 27. Ne7+ Kf7 28. Nxc6 Bf2 29. Nxa7 Bxg3 30. fxg5 hxg5 31. Ke2 Ke6 32. Kf3 Bb8 33. Nc6 Bc7 34. Kg4 Kd6 35. Nd4 Bd8 36. Kf5 Be7 37. Nb3 Bd8 38. g3 Be7 39. g4 Kc6 40. Ke6 Ba3 41. Kf6 1-0

[Event "Steinweg op 5th"]
[Site "Antwerp"]
[Date "1991.08.10"]
[Round "1"]
[White "Finegold, Benjamin"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2455"]
[PlyCount "73"]
[EventDate "1991.08.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 Nbd7 7. Nh3 h6 8. Be3 c5 9. d5 b5 10. Nxb5 Ne5 11. Nf2 Rb8 12. Qd2 a6 13. Nc3 Kh7 14. Be2 Qa5 15. 0-0 Qb4 16. b3 Nh5 17. Rac1 f5 18. f4 Ng4 19. Nxg4 fxg4 20. g3 Bd7 21. Qd3 a5 22. f5 gxf5 23. exf5 Nf6 24. Ne4 Rg8 25. Bxg4 Nxg4 26. f6 Kh8 27. fxg7+ Rxg7 28. Bd2 Qa3 29. Bc3 Qxa2 30. Rc2 Qa3 31. Qd2 a4 32. Ra2 Qxb3 33. Rb2 Qxc4 34. Rxb8+ Kh7 35. Rf4 Ne5 36. Bxe5 dxe5 37. Ng5+ 1-0

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.09.01"]
[Round "11"]
[White "Diekstra, Johnny"]
[Black "Holaszek, Hans"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "40"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. e5 Ne8 6. f4 d6 7. Nf3 c5 8. dxc5 Nc6 9. cxd6 exd6 10. Nb5 Qa5+ 11. Bd2 Qb6 12. Qe2 a6 13. Nc3 Bg4 14. Na4 Qc7 15. exd6 Nxd6 16. 0-0-0 Nd4 17. Qd3 Bf5 18. Qe3 Nxc4 19. Bxc4 Qxc4+ 20. Nc3 Qxa2 0-1

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.30"]
[Round "9"]
[White "Keogh, Eamon"]
[Black "Diekstra, Johnny"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "72"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. d3 d6 6. Bg5 Na5 7. Nd5 Nxc4 8. dxc4 Be6 9. Qe2 c6 10. Nxf6+ gxf6 11. Bh4 Rg8 12. 0-0-0 Rxg2 13. Bg3 Qa5 14. Kb1 Bg4 15. Rd3 b5 16. cxb5 Qxb5 17. h3 Be6 18. Ne1 Rxg3 19. fxg3 Bc4 20. Qg4 Rb8 21. b3 Bxd3 22. Nxd3 a5 23. Nxc5 dxc5 24. Qf5 c4 25. Qxf6 cxb3 26. axb3 a4 27. Rf1 Kd7 28. Rd1+ Kc7 29. Qxf7+ Kb6 30. Rd7 Qa5 31. Qf2+ Qc5 32. Qxc5+ Kxc5 33. Rxh7 axb3 34. Kb2 bxc2+ 35. Kxc2 Rg8 36. g4 Kd4 1/2-1/2

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.29"]
[Round "8"]
[White "Diekstra, Johnny"]
[Black "Kuettner, Uwe"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "84"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 0-0 6. Nge2 e5 7. d5 Nh5 8. Ng3 Nf4 9. 0-0 Nd7 10. Bc2 a6 11. Be3 Nf6 12. f3 h5 13. Nge2 Bh6 14. Qd2 Nxe2+ 15. Nxe2 Bxe3+ 16. Qxe3 Kg7 17. b4 a5 18. a3 b6 19. c5 bxc5 20. bxc5 Nd7 21. cxd6 cxd6 22. Rab1 Nc5 23. f4 f6 24. Nc3 Ba6 25. Rfc1 Qd7 26. Rb6 Rfb8 27. Rcb1 Rxb6 28. Rxb6 Qd8 29. Rb1 Rb8 30. fxe5 Rxb1+ 31. Bxb1 fxe5 32. Bc2 Qf6 33. Qf2 Qf4 34. Qxf4 exf4 35. Kf2 Kf6 36. Kf3 Ke5 37. g3 g5 38. gxf4+ gxf4 39. h4 Bc8 40. Bb1 Bg4+ 41. Kf2 Bd7 42. Bc2 Bg4 0-1

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.28"]
[Round "7"]
[White "Diekstra, Johnny"]
[Black "Smith, David A"]
[Result "1/2-1/2"]
[ECO "E70"]
[PlyCount "58"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 0-0 6. Nge2 e5 7. d5 Nbd7 8. h3 a5 9. Be3 Nc5 10. Bc2 Ne8 11. Ng3 b6 12. h4 f5 13. exf5 gxf5 14. Bg5 Bf6 15. Qh5 Ng7 16. Qh6 Qe7 17. Nb5 Na6 18. 0-0-0 Bd7 19. Nc3 a4 20. f4 e4 21. Ncxe4 fxe4 22. Nxe4 Ne8 23. Nxf6+ Nxf6 24. Bxf6 Rxf6 25. Bxh7+ Qxh7 26. Qxf6 Nb4 27. Qg5+ Kh8 28. Qf6+ Kg8 29. Qg5+ Kh8 1/2-1/2

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.26"]
[Round "6"]
[White "Phillips, James Rodney"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "A50"]
[PlyCount "91"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 b6 4. e4 d6 5. Bd3 Bb7 6. d5 Nbd7 7. f4 Nc5 8. Nf3 c6 9. 0-0 Be7 10. e5 Nfd7 11. dxe6 Nxe6 12. f5 Nec5 13. f6 gxf6 14. exd6 Bxd6 15. Bc2 Qc7 16. Qe2+ Ne6 17. Bf5 Ne5 18. Bxe6 fxe6 19. Nxe5 Bxe5 20. Bf4 0-0-0 21. Bxe5 fxe5 22. Rae1 Rhg8 23. Qxe5 Rg6 24. Qxc7+ Kxc7 25. Rf7+ Rd7 26. Ref1 Rg7 27. Rxg7 Rxg7 28. Rd1 a6 29. c5 bxc5 30. Ne4 c4 31. Nc5 Bc8 32. Rd4 c3 33. bxc3 Rg5 34. Ne4 Rd5 35. Nf6 Rc5 36. Nxh7 Rxc3 37. Rd2 e5 38. Nf6 Bf5 39. g4 Bb1 40. h4 Ra3 41. h5 Bxa2 42. Rxa2 Rxa2 43. h6 Ra1+ 44. Kf2 Kd6 45. h7 Rh1 46. Nh5 1-0

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.25"]
[Round "5"]
[White "Diekstra, Johnny"]
[Black "Jakobsen, Ole"]
[Result "1-0"]
[ECO "A89"]
[PlyCount "101"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nc3 0-0 6. Nf3 d6 7. 0-0 Nc6 8. Rb1 Ne4 9. e3 Nxc3 10. bxc3 e5 11. e4 fxe4 12. Ng5 Qe8 13. Bxe4 h6 14. Nf3 Bg4 15. Re1 Kh8 16. Rxb7 exd4 17. h3 Bxf3 18. Bxf3 Qd7 19. Bg2 dxc3 20. c5 Rab8 21. Rxb8 Rxb8 22. Qc2 Ne7 23. c6 Qf5 24. Be4 Qf6 25. Re3 d5 26. Bd3 Nf5 27. Rf3 Nd4 28. Rxf6 Nxc2 29. Rf7 Nb4 30. Bxg6 Nxc6 31. Rxc7 Ne5 32. Bf5 Nc4 33. Kf1 Re8 34. Rc8 Rxc8 35. Bxc8 d4 36. Ke2 Nd6 37. Be6 Kh7 38. Kd3 Kg6 39. Ba3 Nf7 40. f4 h5 41. Bc5 Nd8 42. Bb3 Nc6 43. Ba4 Nd8 44. Bxd4 Bxd4 45. Kxd4 Ne6+ 46. Kxc3 h4 47. Bc2+ Kf6 48. gxh4 Nxf4 49. Kc4 Ke5 50. Kb5 Nd5 51. a3 1-0

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.24"]
[Round "4"]
[White "Gilden, Lawrence C"]
[Black "Diekstra, Johnny"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "86"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. Nf3 Be7 5. e3 d5 6. Be2 c5 7. 0-0 Nc6 8. Bb2 Bf5 9. d3 h6 10. Nbd2 Qc7 11. c4 Nb4 12. Ne5 dxc4 13. Ndxc4 b5 14. Na3 a6 15. e4 Be6 16. f4 Rd8 17. f5 Bd6 18. Nf3 Bc8 19. e5 Bxf5 20. exd6 Qxd6 21. Ne5 Bxd3 22. Bxd3 c4 23. Qe1 0-0 24. Be4 Rfe8 25. Kh1 Nxe4 26. Qxe4 Nd3 27. Rad1 Nf2+ 28. Kg1 Nxd1 29. Qf3 Qb6+ 30. Kh1 Nxb2 31. Qxf7+ Kh8 32. Qf5 Rxe5 33. Qxe5 Nd3 34. Qf5 Qd4 35. Nc2 Qe5 36. Qg4 Re8 37. h3 Qe4 38. Qh5 Kh7 39. Rf3 Qg6 40. Qd5 Ne1 41. Nxe1 Rxe1+ 42. Kh2 Qe6 43. Qd2 Re2 0-1

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.23"]
[Round "3"]
[White "Rubinetti, Jorge Alberto"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "D36"]
[PlyCount "67"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. Nc3 Nbd7 5. Bg5 c6 6. cxd5 exd5 7. e3 Bd6 8. Bd3 h6 9. Bh4 0-0 10. Qc2 Re8 11. 0-0 Qc7 12. Rac1 a6 13. Rb1 Qd8 14. b4 Qe7 15. Qb3 g5 16. Bg3 Ne4 17. Bxe4 Bxg3 18. hxg3 dxe4 19. Nd2 Nf6 20. Qc2 Bf5 21. a4 Qe6 22. b5 cxb5 23. axb5 Rad8 24. Nb3 Nd7 25. Qe2 Ra8 26. bxa6 bxa6 27. Na4 Rab8 28. Nbc5 Rxb1 29. Rxb1 Nxc5 30. Nxc5 Qc6 31. Qa2 Ra8 32. Qa5 Bc8 33. Qd8+ Kh7 34. Rb6 1-0

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.22"]
[Round "2"]
[White "Diekstra, Johnny"]
[Black "Rosino, Antonio"]
[Result "0-1"]
[ECO "E69"]
[PlyCount "68"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4 g6 6. g3 Bg7 7. Bg2 0-0 8. 0-0 c6 9. h3 Re8 10. Be3 a6 11. Qc2 b5 12. cxb5 cxb5 13. a3 Bb7 14. d5 Rc8 15. Ne1 Nb6 16. Nd3 Nc4 17. Bc1 Qc7 18. a4 bxa4 19. Qxa4 Nd7 20. Qd1 Nc5 21. Nxc5 Qxc5 22. Na4 Qb5 23. Qd3 Rc7 24. Nc3 Qb3 25. Rb1 Rb8 26. Bf3 Bc8 27. Bd1 Qb4 28. Kg2 h5 29. Na2 Qb5 30. b4 Ne3+ 31. Qxe3 Bxh3+ 32. Kh2 Qxf1 33. Bf3 Rc2 34. Rb2 Rbc8 0-1

[Event "World U20-ch06 Final B"]
[Site "The Hague"]
[Date "1961.08.21"]
[Round "1"]
[White "Minaya Molano, Juan M"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "E04"]
[PlyCount "131"]
[EventDate "1961.08.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 dxc4 5. Bg2 Bb4+ 6. Bd2 Qe7 7. Qa4+ Nc6 8. Ne5 0-0 9. Nxc6 Bxd2+ 10. Nxd2 bxc6 11. Bxc6 Bd7 12. Bxd7 Nxd7 13. Nxc4 Rfd8 14. 0-0 Nb6 15. Nxb6 axb6 16. Qc4 b5 17. Qc3 Ra4 18. e3 Rda8 19. Rfc1 R8a7 20. Qc5 Qd7 21. Qc6 Qxc6 22. Rxc6 Kf8 23. Rc5 Rb4 24. Rc2 Ke7 25. a3 Kd6 26. Rac1 Rba4 27. Rd1 b4 28. axb4 Rxb4 29. f4 Kd5 30. Rc5+ Kd6 31. Rc2 Kd5 32. Rc5+ Kd6 33. Rd2 Ra1+ 34. Kf2 Rb1 35. Rcc2 Ra4 36. e4 Raa1 37. e5+ Kd7 38. d5 Rc1 39. dxe6+ Kxe6 40. Rxc1 Rxc1 41. Ke3 h5 42. Ke4 g6 43. Kd3 Kd5 44. Ke3+ Ke6 45. Kd3 Kd5 46. Ke3+ Ke6 47. Re2 Kd5 48. Kd2 Rf1 49. Ke3 Rc1 50. Kf3 Ke6 51. Kg2 Kf5 52. Kh3 Rc4 53. Rf2 Rc6 54. Kh4 Rc4 55. h3 g5+ 56. Kxh5 gxf4 57. Rxf4+ Rxf4 58. gxf4 Kxf4 59. h4 Kxe5 60. Kg5 f6+ 61. Kg6 f5 62. h5 f4 63. h6 Ke4 64. h7 f3 65. h8Q Ke3 66. Qe5+ 1-0

[Event "World U20-ch06 Preliminaries C"]
[Site "The Hague"]
[Date "1961.08.19"]
[Round "7"]
[White "Larusson, Gudmundur"]
[Black "Diekstra, Johnny"]
[Result "1/2-1/2"]
[ECO "B02"]
[PlyCount "22"]
[EventDate "1961.08.12"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. d3 Nc6 3. f4 d6 4. Nf3 e5 5. Be2 Be7 6. 0-0 h6 7. Qe1 Bg4 8. Qg3 Qd7 9. h3 exf4 10. Bxf4 Bh5 11. Qh2 Bxf3 1/2-1/2

[Event "World U20-ch06 Preliminaries C"]
[Site "The Hague"]
[Date "1961.08.18"]
[Round "6"]
[White "Diekstra, Johnny"]
[Black "Parma, Bruno"]
[Result "1/2-1/2"]
[ECO "E63"]
[PlyCount "28"]
[EventDate "1961.08.12"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. Nc3 Nc6 7. 0-0 a6 8. e4 e5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Qxd8 Rxd8 12. Nd5 c6 13. Nb6 Rb8 14. Bg5 Be6 1/2-1/2

[Event "World U20-ch06 Preliminaries C"]
[Site "The Hague"]
[Date "1961.08.16"]
[Round "5"]
[White "Rischette, Robert"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "A17"]
[PlyCount "86"]
[EventDate "1961.08.12"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. e3 Be7 5. Be2 0-0 6. 0-0 c6 7. a3 a6 8. b4 dxc4 9. Bxc4 b5 10. Bb3 Qc7 11. d4 Rd8 12. Qc2 Nbd7 13. Bb2 Bd6 14. Ne4 Nxe4 15. Qxe4 Bb7 16. Qh4 Nf8 17. Bc2 Be7 18. Qh5 Bf6 19. e4 g6 20. Qh3 e5 21. dxe5 Bc8 22. Qg3 Bg7 23. Bb3 c5 24. Bd5 Rb8 25. Ng5 Be6 26. Rfd1 c4 27. Bc3 Re8 28. f4 h6 29. Nf3 Kh7 30. Rd2 Rbd8 31. Rad1 Qb6+ 32. Kh1 Qc7 33. Qh4 Kg8 34. Qg3 Qe7 35. Nh4 Kh8 36. f5 Bxd5 37. Rxd5 Rxd5 38. Rxd5 g5 39. Nf3 f6 40. e6 Nxe6 41. fxe6 Qxe6 42. Nd2 Kg8 43. h3 h5 1-0

[Event "World U20-ch06 Preliminaries C"]
[Site "The Hague"]
[Date "1961.08.14"]
[Round "3"]
[White "Westerinen, Heikki MJ"]
[Black "Diekstra, Johnny"]
[Result "1-0"]
[ECO "C47"]
[PlyCount "119"]
[EventDate "1961.08.12"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nd5 Bb4+ 6. Nxb4 Nxb4 7. e5 Qe7 8. Qe2 Nfd5 9. Nxd4 d6 10. exd6 Qxe2+ 11. Bxe2 c5 12. a3 cxd4 13. axb4 Nxb4 14. Ra4 a5 15. Kd2 0-0 16. b3 Rd8 17. Ba3 Bd7 18. Rxa5 Rxa5 19. Bxb4 Rg5 20. g4 Re5 21. Bd1 Rb5 22. Ba3 Ra8 23. Bb2 Bc6 24. Re1 Rd5 25. Re4 Ra2 26. d7 Ra8 27. Rxd4 Rxd4+ 28. Bxd4 Rd8 29. c3 Rxd7 30. Be2 Rd5 31. Ke3 Kf8 32. b4 f6 33. c4 Rd8 34. b5 Re8+ 35. Kd2 Be4 36. f3 Bb1 37. c5 Ba2 38. Bd3 Bd5 39. f4 Ra8 40. Bxh7 Ra2+ 41. Kc3 Rxh2 42. Bf5 Rh3+ 43. Kb4 Rf3 44. c6 Rxf4 45. c7 Rxd4+ 46. Kc5 Rc4+ 47. Kd6 Bf3 48. c8Q+ Rxc8 49. Bxc8 g5 50. b6 Kf7 51. Kc7 Kg6 52. Bxb7 Bxb7 53. Kxb7 f5 54. gxf5+ Kxf5 55. Kc6 Kf4 56. b7 g4 57. b8Q+ Kf3 58. Kd5 g3 59. Qb3+ Kf2 60. Ke4 1-0

[Event "World U20-ch06 Preliminaries C"]
[Site "The Hague"]
[Date "1961.08.13"]
[Round "2"]
[White "Diekstra, Johnny"]
[Black "Minaya Molano, Juan M"]
[Result "0-1"]
[ECO "E68"]
[PlyCount "62"]
[EventDate "1961.08.12"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. c4 d6 6. Nc3 Nbd7 7. 0-0 e5 8. b3 Re8 9. Bb2 c6 10. e4 a5 11. Qc2 exd4 12. Nxd4 Nc5 13. Rad1 Qc7 14. h3 Nh5 15. Kh2 Ne6 16. Nce2 Nxd4 17. Nxd4 Bd7 18. f4 Re7 19. Ba3 c5 20. Nf3 a4 21. b4 Bc6 22. Ne1 Rae8 23. bxc5 Bxe4 24. Bxe4 Rxe4 25. cxd6 Re2+ 26. Ng2 Qc6 27. Rf2 Rxc2 28. Rxc2 Qf3 29. d7 Rd8 30. Re1 Qxg3+ 31. Kg1 Bd4+ 0-1

[Event "World U20-ch06 Preliminaries C"]
[Site "The Hague"]
[Date "1961.08.12"]
[Round "1"]
[White "Diekstra, Johnny"]
[Black "Gilden, Lawrence C"]
[Result "1-0"]
[ECO "E62"]
[PlyCount "114"]
[EventDate "1961.08.12"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nc6 7. Nc3 Bg4 8. h3 Bxf3 9. Bxf3 Nd7 10. e3 e5 11. Bxc6 bxc6 12. b3 Qf6 13. d5 e4 14. Bb2 cxd5 15. Qxd5 Rae8 16. Rab1 Qf3 17. Nb5 Bxb2 18. Rxb2 Re5 19. Qd1 Qf6 20. Rd2 Rh5 21. Kg2 Ne5 22. Nxc7 Nf3 23. Rxd6 Qe5 24. Rh1 Rf5 25. Nb5 Qb2 26. Rf1 Re8 27. Qa1 Nh4+ 28. Kg1 Nf3+ 29. Kh1 Rh5 30. Kg2 Qe2 31. Qd1 Qxa2 32. Nc3 Qa5 33. Nxe4 Nh4+ 34. gxh4 Rxe4 35. Rd8+ Kg7 36. Qa1+ Qxa1 37. Rxa1 Rexh4 38. Rxa7 Rxh3 39. Ra2 Rh1 40. b4 R5h2+ 41. Kf3 Rb1 42. b5 Rb4 43. Rc2 Rh5 44. Ke4 Rhxb5 45. Rd5 Rb8 46. Rd4 Kf6 47. c5 Ke6 48. Ra2 R4b7 49. Ra6+ Ke7 50. c6 Rc7 51. Kd5 f5 52. Kc5 Rb2 53. Rda4 g5 54. Rb4 Rc2+ 55. Rc4 Rd2 56. Kb6 Rc8 57. Kb7 Rf8 1-0

