[Event "Groningen op-B"]
[Site "Groningen"]
[Date "2004.12.21"]
[Round "1"]
[White "Den Besten, Jan W"]
[Black "Hielkema, Henk"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "141"]
[EventDate "2004.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Be7 5. d4 Nd7 6. Be3 Ngf6 7. Bd3 Nxe4 8. Bxe4 Nf6 9. Bd3 0-0 10. 0-0 b6 11. Ne5 Bb7 12. f3 Rc8 13. Qe2 c5 14. dxc5 Bxc5 15. Bxc5 Rxc5 16. Kh1 Qd4 17. Nc4 Qf4 18. g3 Qc7 19. Nd2 Rh5 20. Kg1 Re5 21. Qf2 Rd8 22. Rfe1 Red5 23. Ne4 Nxe4 24. fxe4 Re5 25. Re3 Qe7 26. Rf1 Rf8 27. a3 Qc5 28. Re2 Qc6 29. Qd4 Qc5 30. Qxc5 Rxc5 31. Kf2 e5 32. Ke3 Bc8 33. b4 Rc3 34. Ra1 Rd8 35. Kd2 Rc7 36. Ke3 Rc3 37. Kf2 Rd4 38. Ke1 Rc6 39. Rf2 Rg6 40. Ke2 Bb7 41. Ke3 Bc8 42. c3 Rd8 43. Bc4 Be6 44. Ba6 Bc8 45. Bb5 Rgd6 46. Raa2 a6 47. Bc4 Rf8 48. Bd5 b5 49. a4 bxa4 50. Rxa4 Be6 51. Bxe6 Rxe6 52. Rfa2 Rc8 53. R2a3 Rec6 54. Kd3 Rd8+ 55. Kc2 Rc4 56. Rxa6 g6 57. Ra8 Rxa8 58. Rxa8+ Kg7 59. Kd3 Rc7 60. b5 Kf6 61. c4 Ke6 62. Rd8 Ke7 63. Rd5 f6 64. b6 Rd7 65. c5 Rb7 66. Kc4 Ke6 67. Rd1 f5 68. exf5+ gxf5 69. Rd6+ Ke7 70. Rh6 Ke8 71. Re6+ 1-0

[Event "Groningen Harmonie op-B"]
[Site "Groningen"]
[Date "2002.??.??"]
[Round "1.7"]
[White "Hielkema, Henk"]
[Black "Keizer, Theodoor"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "1576"]
[BlackElo "1769"]
[PlyCount "52"]
[EventDate "2002.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 Nbd7 7. 0-0 e5 8. d5 a5 9. a4 Nc5 10. Qc2 Nh5 11. Be3 b6 12. Bxc5 bxc5 13. Nd2 Nf4 14. Bf3 g5 15. g3 Nh3+ 16. Kh1 f5 17. exf5 Rxf5 18. Nce4 Qf8 19. Kg2 Rf7 20. Bh5 Re7 21. Qd1 Bd7 22. Bg4 h5 23. Bxd7 Rxd7 24. Kxh3 g4+ 25. Kg2 Bh6 26. f3 Qg7 1-0

[Event "Groningen SO ON op B"]
[Site "Groningen"]
[Date "2001.??.??"]
[Round "1.4"]
[White "Van den Berg, Harmen"]
[Black "Hielkema, Henk"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1774"]
[BlackElo "1620"]
[PlyCount "73"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Be7 5. Bf4 Nf6 6. Nd2 c6 7. c3 0-0 8. Ne2 Re8 9. Qc2 Nbd7 10. g4 Nf8 11. f3 Bd6 12. Bg5 Be7 13. h4 N6d7 14. 0-0-0 Bxg5 15. hxg5 Qxg5 16. Bxh7+ Nxh7 17. Qxh7+ Kf8 18. Ng3 Nf6 19. Qh8+ Ke7 20. Rde1+ Be6 21. Nf5+ Kd7 22. Qxg7 Rg8 23. Qxg5 Rxg5 24. Ne3 Rg7 25. Ndf1 Nh7 26. f4 f6 27. Ng3 Rf8 28. Nef5 Rgf7 29. Rh5 Re8 30. Reh1 Nf8 31. Rh8 Kc7 32. Kd2 Bd7 33. Nh6 Rg7 34. Nh5 Rg6 35. f5 Rg5 36. Nxf6 Rd8 37. Nf7 1-0

[Event "Groningen SO ON op-B"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "1"]
[White "Matulessy, Richard"]
[Black "Hielkema, Henk"]
[Result "0-1"]
[ECO "C10"]
[PlyCount "128"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[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 dxe4 4. Nxe4 Be7 5. Nf3 Nf6 6. Nxf6+ Bxf6 7. Be2 0-0 8. 0-0 Nd7 9. Bf4 c5 10. Bd6 Be7 11. Bxe7 Qxe7 12. c3 cxd4 13. Qxd4 Nf6 14. Rad1 b6 15. Ne5 Bb7 16. Qh4 Qc5 17. Nd3 Qf5 18. Ne1 Rad8 19. Nf3 Qc2 20. Rxd8 Rxd8 21. Nd4 Qxb2 22. Bd3 Rc8 23. Nb5 Qxa2 24. c4 Bc6 25. Nd6 Rf8 26. g4 Qd2 27. Qg3 Qg5 28. Be2 Ne4 29. Nxe4 Bxe4 30. h4 Qd2 31. Bf3 Bxf3 32. Qxf3 Rd8 33. Ra1 a5 34. Rb1 Qd4 35. h5 Rc8 36. Qb7 Qxg4+ 37. Qg2 Qxg2+ 38. Kxg2 h6 39. Rxb6 Rxc4 40. Rb8+ Kh7 41. Rb7 f6 42. Rb6 e5 43. Kg3 Ra4 44. Rb5 Ra3+ 45. Kg4 a4 46. Ra5 Ra1 47. Kf5 a3 48. Ke6 a2 49. Kf7 Rh1 50. Rxa2 Rxh5 51. Ra4 Rg5 52. Rh4 h5 53. f4 exf4 54. Rxf4 Kh6 55. Re4 Re5 56. Rh4 Rb5 57. Rh1 Rb6 58. Rg1 g5 59. Rd1 h4 60. Rd8 Kh5 61. Rd3 f5 62. Ke7 g4 63. Rd8 h3 64. Rg8 h2 0-1

[Event "Groningen ABM op"]
[Site "Groningen"]
[Date "1999.??.??"]
[Round "?"]
[White "Beijer, Bart"]
[Black "Hielkema, Henk"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "55"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nf6 5. Bg5 Be7 6. Nf3 Bg4 7. Nbd2 Nbd7 8. c3 h6 9. Bh4 0-0 10. Qc2 Nh5 11. Bg3 Nxg3 12. hxg3 Bd6 13. 0-0-0 Qf6 14. Rh4 Be6 15. Rdh1 Qd8 16. Nf1 Be7 17. R4h2 Nf6 18. Ne3 Ng4 19. Nxg4 Bxg4 20. Ne5 Be6 21. f4 Re8 22. g4 Bf6 23. g5 Bxe5 24. dxe5 Kf8 25. gxh6 gxh6 26. Rxh6 c5 27. Qf2 Qa5 28. Qh4 1-0

[Event "Groningen ABM op"]
[Site "Groningen"]
[Date "1999.??.??"]
[Round "?"]
[White "Naayer, Joop"]
[Black "Hielkema, Henk"]
[Result "0-1"]
[ECO "D36"]
[PlyCount "54"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 Be7 6. cxd5 exd5 7. Bd3 h6 8. Bh4 c6 9. Qc2 Qc7 10. Bg3 Bd6 11. Bxd6 Qxd6 12. Nf3 0-0 13. 0-0 Re8 14. Rac1 Nf8 15. Ne5 Ng4 16. Nxg4 Bxg4 17. h3 Bh5 18. Be2 Bg6 19. Bd3 Re6 20. Ne2 Rf6 21. Nf4 Bxd3 22. Qxd3 Ng6 23. Nh5 Re6 24. Ng3 Nh4 25. Nh5 Rg6 26. Nf4 Rxg2+ 27. Nxg2 Nf3+ 0-1

