[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.31"]
[Round "9"]
[White "Grondsma, Mark"]
[Black "Munnik, Talitha"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2121"]
[BlackElo "1965"]
[PlyCount "119"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e6 7. Be3 Nd4 8. Qd2 Ne7 9. Nd1 0-0 10. 0-0 Rb8 11. c3 Nxe2+ 12. Qxe2 Nc6 13. Qd2 Bd7 14. Bh6 b5 15. Bxg7 Kxg7 16. Ne3 a6 17. f4 f5 18. g4 fxg4 19. Nxg4 Qh4 20. h3 Rbc8 21. e5 d5 22. Nf6 Rcd8 23. Kh2 Ne7 24. Rg1 Ng8 25. Nxg8 Kxg8 26. Raf1 Kh8 27. Bh1 Rf5 28. Rg4 Qh6 29. Kg3 Rxe5 30. Rg5 Rf5 31. Bf3 Qf8 32. Rf2 Qd6 33. Rxf5 exf5 34. Re2 Re8 35. Rxe8+ Bxe8 36. Qe3 Bf7 37. d4 c4 38. Qe5+ Qxe5 39. dxe5 b4 40. Kf2 bxc3 41. bxc3 h6 42. h4 d4 43. cxd4 c3 44. Ke3 Bc4 45. d5 Kg7 46. a3 Kf7 47. d6 g5 48. hxg5 hxg5 49. Bd1 gxf4+ 50. Kxf4 Bd3 51. Bb3+ Ke8 52. Ke3 c2 53. Kd2 c1Q+ 54. Kxc1 f4 55. e6 Bb5 56. Kd2 Kd8 57. Bd5 Ke8 58. Be4 Kf8 59. Bg6 Kg7 60. d7 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.30"]
[Round "8"]
[White "Haast, Mark"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "2089"]
[BlackElo "2121"]
[PlyCount "55"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bf4 e6 12. 0-0-0 Nd5 13. Bd2 Qc7 14. Kb1 0-0-0 15. c4 N5f6 16. Bc3 Kb8 17. Ne4 Ka8 18. Nxf6 Nxf6 19. Qe2 Bd6 20. Ne5 Bxe5 21. dxe5 Nh7 22. f4 Rxd1+ 23. Rxd1 Rd8 24. a3 b6 25. Rxd8+ Qxd8 26. Qe4 Nf8 27. Qxc6+ Kb8 28. Bb4 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.29"]
[Round "7"]
[White "Grondsma, Mark"]
[Black "De Ruiter, Danny"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2121"]
[BlackElo "2017"]
[PlyCount "97"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 d6 6. d3 e6 7. Be3 Nge7 8. Qd2 Nd4 9. Nd1 Nec6 10. c3 Nxe2 11. Qxe2 e5 12. 0-0 0-0 13. f4 f5 14. fxe5 Bxe5 15. Bh6 Bg7 16. Bxg7 Kxg7 17. Ne3 fxe4 18. Rxf8 Qxf8 19. Rf1 exd3 20. Qxd3 Qd8 21. Rd1 Be6 22. Qxd6 Qxd6 23. Rxd6 Bxa2 24. Rd7+ Kh6 25. Rxb7 Rc8 26. Bxc6 Rxc6 27. Rxa7 Be6 28. Ra4 Rb6 29. Re4 Bb3 30. Kf2 Ra6 31. Ng4+ Kh5 32. Ne5 Ra2 33. Re2 Ra1 34. Nd3 c4 35. Nc5 Rc1 36. Ke3 Kg4 37. Ne4 h5 38. Nf2+ Kf5 39. Kd4 Kf6 40. Ne4+ Kf5 41. Nd6+ Kg4 42. Nxc4 Kf3 43. Rd2 Bxc4 44. Kxc4 Ke3 45. Rd3+ Ke4 46. b4 Rc2 47. h4 Ra2 48. Rd6 Kf5 49. Rd5+ 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.28"]
[Round "6"]
[White "Vogel, Jaap"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2253"]
[BlackElo "2121"]
[PlyCount "97"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 0-0 5. 0-0 d6 6. c4 c6 7. Nc3 Nbd7 8. Qc2 Qc7 9. b3 e5 10. Bb2 Nh5 11. Rad1 f5 12. e4 Kh8 13. Ng5 exd4 14. Ne6 Qa5 15. Nxg7 Nxg7 16. Rxd4 f4 17. gxf4 Rxf4 18. Ne2 Rf6 19. f4 Nf8 20. Rd3 Rf7 21. Kh1 Bg4 22. Rxd6 Bxe2 23. Qxe2 Kg8 24. a3 Re8 25. b4 Qc7 26. Qd2 Nfe6 27. c5 Ref8 28. Be5 Qe7 29. Qa2 Nc7 30. Bh3 Qh4 31. Kg2 Nce8 32. Rd7 g5 33. Rxf7 Rxf7 34. Be6 Nxe6 35. Qxe6 Ng7 36. Bxg7 Kxg7 37. Qe5+ Kg6 38. f5+ Kh5 39. Rf3 Qe1 40. Rh3+ Kg4 41. Rf3 Kh5 42. Rf2 Qe3 43. Qe6 Rf6 44. Qe5 Rf8 45. f6 Qxa3 46. Qe7 Rh8 47. f7 Kh4 48. Qe6 h5 49. f8Q 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.26"]
[Round "5"]
[White "Grondsma, Mark"]
[Black "Van Vliet, Dennis"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2121"]
[BlackElo "2116"]
[PlyCount "157"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Bg2 c5 4. Nf3 Nc6 5. 0-0 Nf6 6. cxd5 exd5 7. d4 Be7 8. Nc3 0-0 9. Bg5 c4 10. b3 Ne4 11. Bxe7 Nxe7 12. Nxe4 dxe4 13. Ng5 f5 14. e3 h6 15. Nh3 Be6 16. Nf4 Bf7 17. Qb1 g5 18. Ne2 cxb3 19. axb3 Qb6 20. g4 Bxb3 21. gxf5 Bc4 22. Qxe4 Qf6 23. Qc2 Bxe2 24. Qxe2 Nxf5 25. Bxb7 Rae8 26. Qc4+ Kh8 27. Ra6 Qe7 28. Qc6 Rf7 29. Bc8 Nxe3 30. Re1 Qf8 31. Qxh6+ Qxh6 32. Rxh6+ Kg7 33. Rc6 Rff8 34. Rxe3 Rxc8 35. Re7+ Kg8 36. Rxc8 Rxc8 37. Rxa7 Rd8 38. Ra5 Rxd4 39. Rxg5+ Kf7 40. Kg2 Kf6 41. Rg8 Ra4 42. f3 Kf5 43. Kg3 Ra1 44. Rf8+ Kg5 45. h4+ Kh5 46. Rh8+ Kg6 47. Rg8+ Kf6 48. Rg5 Rg1+ 49. Kf4 Rh1 50. Kg4 Rg1+ 51. Kh5 Rf1 52. Rg8 Kf7 53. Rg3 Rh1 54. Kg5 Kg7 55. f4 Rh2 56. Rc3 Rg2+ 57. Kf5 Rf2 58. Rc7+ Kh6 59. Rc6+ Kg7 60. h5 Rf1 61. h6+ Kh7 62. Re6 Rf2 63. Ke5 Rf1 64. f5 Rf2 65. Rf6 Re2+ 66. Kd6 Ra2 67. Re6 Ra5 68. Rf6 Ra6+ 69. Ke5 Ra5+ 70. Kf4 Ra4+ 71. Kg5 Ra7 72. Rd6 Rb7 73. Rd5 Ra7 74. f6 Ra1 75. f7 Ra8 76. Rf5 Rf8 77. Kf6 Ra8 78. Ke7 Ra7+ 79. Ke6 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.25"]
[Round "4"]
[White "Van den Berg, Harmen"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2195"]
[BlackElo "2121"]
[PlyCount "79"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Ne5 Nc6 5. d4 Nxe5 6. dxe5 e6 7. f4 f5 8. Be3 Nh6 9. Nd2 Be7 10. Nf3 0-0 11. Be2 Bd7 12. 0-0 Rc8 13. Rc1 Ng4 14. Bd4 Qa5 15. h3 Nh6 16. c4 Bc6 17. Qb3 Nf7 18. Kh1 Kh8 19. Qe3 dxc4 20. Bxc4 Bd5 21. Bc3 Qd8 22. Bxd5 Qxd5 23. Qxa7 Bc5 24. Qa4 Ra8 25. Qb5 b6 26. a3 Qe4 27. Nd2 Qa4 28. Qe2 Rfd8 29. Qf3 Ra7 30. b3 Qb5 31. a4 Qd3 32. Nc4 Rad7 33. Qc6 Qd5 34. Qb5 Qd3 35. Bb2 Qg3 36. a5 Nh6 37. Rc3 Rd1 38. Nd2 R8xd2 39. Rxg3 Bf2 40. Rc3 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.24"]
[Round "3"]
[White "Grondsma, Mark"]
[Black "Van der Knijff, Reint"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2121"]
[BlackElo "1998"]
[PlyCount "126"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bb4 3. g3 Bxc3 4. bxc3 Ne7 5. Bg2 d6 6. Nf3 Nbc6 7. 0-0 0-0 8. a4 Be6 9. d3 h6 10. a5 Qd7 11. a6 b6 12. Ba3 Bh3 13. d4 Bxg2 14. Kxg2 e4 15. Nd2 f5 16. e3 Rad8 17. Qb3 Kh8 18. Rfd1 Qe8 19. f3 Qh5 20. Rf1 Rde8 21. Rae1 exf3+ 22. Rxf3 Ng6 23. Qb5 Nd8 24. Ref1 Qg5 25. Kf2 Ne6 26. Ke2 Qg4 27. Kd3 Re7 28. Kc2 Ng5 29. Rxf5 Rxf5 30. Qxf5 Qxf5+ 31. Rxf5 Rxe3 32. h4 Nh7 33. Kb3 Nf6 34. c5 Ne7 35. Rf3 Rxf3 36. Nxf3 dxc5 37. dxc5 Nc6 38. Kc4 Nb8 39. cxb6 cxb6 40. Kb5 Ne8 41. Nd4 Kg8 42. Kc4 Kf7 43. Nb5 Nxa6 44. Nxa7 Nac7 45. Nc8 b5+ 46. Kc5 Nf6 47. Nd6+ Ke6 48. Kc6 Ncd5 49. Nxb5 Ne4 50. c4 Ne3 51. c5 Nxg3 52. Kb7 Nc4 53. Bb4 Ne5 54. Bc3 Ne4 55. Nc7+ Kf5 56. Bd4 Nf3 57. Bxg7 Nxc5+ 58. Kc6 Ne6 59. Nxe6 Kxe6 60. h5 Kf5 61. Bxh6 Kg4 62. Bf4 Kxh5 63. Bg5 Kxg5 1/2-1/2

[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.23"]
[Round "2"]
[White "Kuipers, Stefan"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "2321"]
[BlackElo "2121"]
[PlyCount "69"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. 0-0-0 Qc7 13. Kb1 0-0-0 14. Qe2 Bd6 15. Ne4 Nxe4 16. Qxe4 Kb8 17. Rhe1 Nf6 18. Qh4 Ka8 19. a3 Rhe8 20. Bxh6 Nxh5 21. Bg5 Nf6 22. Bxf6 gxf6 23. Qxf6 Rg8 24. g3 Rg6 25. Qh4 Be7 26. Qh5 Rf6 27. Ne5 Rf5 28. Qe2 a6 29. f4 Qb6 30. Qe3 Qb5 31. c4 Qa4 32. Qc3 Bf8 33. c5 Ka7 34. b3 Qxa3 35. Nc4 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2008.07.22"]
[Round "1"]
[White "Grondsma, Mark"]
[Black "Rothuis, Vincent"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2121"]
[BlackElo "2357"]
[PlyCount "86"]
[EventDate "2008.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 125 Extra"]
[Source "ChessBase"]
[SourceDate "2008.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.09.01"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 f5 6. d3 Nf6 7. Nge2 d6 8. 0-0 0-0 9. Rb1 a5 10. a3 Be6 11. b4 axb4 12. axb4 d5 13. b5 Ne7 14. Na4 dxc4 15. Nc5 Bf7 16. d4 b6 17. Bxa8 Qxa8 18. dxe5 bxc5 19. exf6 Bxf6 20. Bb2 Rd8 21. Qc2 Qf3 22. Nf4 Nd5 23. Qe2 Qxe2 24. Nxe2 Bxb2 25. Rxb2 Nb6 26. Nc3 Rd3 27. Rc1 Kf8 28. Kf1 g5 29. Ra2 Ke7 30. Ra7 Kd7 31. Na4 Nxa4 32. Rxa4 Bd5 33. Ke1 Rb3 34. Rd1 Ke6 35. Ra6+ Ke5 36. Rh6 Rxb5 37. Rxh7 c6 38. h4 g4 39. h5 Kf6 40. h6 Kg6 41. Rh8 c3 42. Rc1 Rb3 43. h7 Be4 1/2-1/2

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "1"]
[White "Afek, Yochanan"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B87"]
[WhiteElo "2316"]
[BlackElo "2122"]
[PlyCount "93"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 b5 7. Bb3 Bb7 8. f3 e6 9. Be3 Nbd7 10. g4 h6 11. Qd2 Nc5 12. 0-0-0 Nxb3+ 13. axb3 b4 14. Na4 Qa5 15. h4 Nd7 16. Kb1 Rd8 17. g5 Ne5 18. Qg2 hxg5 19. hxg5 Rxh1 20. Qxh1 Ng6 21. Nxe6 fxe6 22. Qh5 Qc7 23. Qxg6+ Qf7 24. Qxf7+ Kxf7 25. Nc5 Rb8 26. g6+ Kxg6 27. Nxe6 Kh7 28. Bf4 Re8 29. Nc7 Rc8 30. Nd5 Bxd5 31. Rxd5 Rc5 32. Rxc5 dxc5 33. Kc1 Kg6 34. Kd2 Kf6 35. Kd3 Ke6 36. Kc4 g6 37. Be3 Ke5 38. Bxc5 Bxc5 39. Kxc5 g5 40. Kc4 Kf4 41. Kd3 Kxf3 42. e5 g4 43. e6 g3 44. e7 g2 45. e8R g1Q 46. Rf8+ Kg2 47. Rg8+ 1-0

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "6"]
[White "De Roode, Peter"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2265"]
[BlackElo "2122"]
[PlyCount "99"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 0-0 5. e4 d6 6. c3 c6 7. Be2 Nbd7 8. 0-0 e5 9. dxe5 dxe5 10. Qc2 Qc7 11. Rfe1 h6 12. Bh4 g5 13. Bg3 Nh5 14. a4 Nf4 15. Bf1 Rd8 16. Nc4 Nf8 17. Nfd2 h5 18. f3 N8g6 19. b4 Qe7 20. Ne3 g4 21. fxg4 hxg4 22. Bc4 Qg5 23. Ndf1 Bf6 24. Rad1 Re8 25. Qb3 Rf8 26. a5 a6 27. Nf5 Bxf5 28. exf5 Qxf5 29. Ne3 Qc8 30. Rf1 Bg5 31. Qc2 Nd5 32. Nxd5 cxd5 33. Bxd5 Kg7 34. Qf5 Be3+ 35. Kh1 Qxf5 36. Rxf5 Rad8 37. Rff1 f5 38. Bxb7 f4 39. Rxd8 Rxd8 40. Be1 Rd1 41. Bxa6 f3 42. gxf3 gxf3 43. Bg3 Rxf1+ 44. Bxf1 Kf6 45. Bd3 Nf8 46. Be4 Nd7 47. Bxf3 Bd2 48. a6 Bxc3 49. a7 Nb6 50. Bf2 1-0

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "3"]
[White "Grondsma, Mark"]
[Black "Gijswijt, Bart"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2122"]
[BlackElo "2232"]
[PlyCount "62"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. exf6 Qxf6 10. Nf3 h6 11. 0-0 Bd6 12. Nc3 0-0 13. a3 Rd8 14. b4 Nb6 15. Re1 e5 16. b5 exd4 17. Nxd5 Nxd5 18. bxc6 bxc6 19. Bc4 Bc5 20. Bb2 Bg4 21. Bxd4 Bxd4 22. Qxd4 Bxf3 23. Qxf6 gxf6 24. gxf3 Kf7 25. Rac1 Rd6 26. Ba2 Rad8 27. Rc5 R8d7 28. Rec1 Ke7 29. Rxc6 Rxc6 30. Rxc6 Nf4 31. h4 Rd2 1/2-1/2

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "5"]
[White "Grondsma, Mark"]
[Black "In't Veld, Daan"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "2122"]
[BlackElo "2176"]
[PlyCount "60"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. Be3 d6 7. Qd2 Rb8 8. Nge2 Nd4 9. Nd1 Nxe2 10. Qxe2 Ne7 11. 0-0 0-0 12. Qd2 Re8 13. c3 b6 14. Bh6 Bh8 15. h4 d5 16. Qc2 b5 17. h5 b4 18. Ne3 Bb7 19. hxg6 hxg6 20. f4 d4 21. Ng4 dxc3 22. bxc3 bxc3 23. Bf3 Qd4+ 24. Kg2 Ba6 25. Rf2 f5 26. Rh1 fxg4 27. Bxg4 Nf5 28. exf5 Rb2 29. Qxb2 cxb2 30. fxe6 Bb7+ 0-1

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "7"]
[White "Grondsma, Mark"]
[Black "In't Veld, Rene"]
[Result "1-0"]
[ECO "C04"]
[WhiteElo "2122"]
[BlackElo "2105"]
[PlyCount "157"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. c3 f6 7. exf6 Qxf6 8. Nb3 Bd6 9. Bg5 Qf7 10. Bb5 e5 11. dxe5 Ncxe5 12. Nxe5 Bxe5 13. f4 0-0 14. 0-0 Bf6 15. Qc2 Qe6 16. Kh1 Qb6 17. Bd3 h6 18. Qe2 Bxg5 19. fxg5 hxg5 20. Rxf8+ Nxf8 21. Qe5 Be6 22. Rf1 c5 23. Bb1 Re8 24. h3 a5 25. c4 a4 26. Nd2 Qd8 27. Nf3 Qf6 28. Qd6 g4 29. hxg4 Bxg4 30. Qxd5+ Qe6 31. Qxe6+ Nxe6 32. Re1 Rd8 33. Be4 Nc7 34. Bxb7 Rb8 35. Bc6 Bxf3 36. gxf3 Rxb2 37. Re7 Na6 38. Bd5+ Kh7 39. Be4+ Kg8 40. Ra7 Rb6 41. a3 Kf8 42. Kg2 Nb8 43. Rxa4 Na6 44. Ra5 Ke7 45. Rb5 Rd6 46. Bd5 Nc7 47. Rxc5 Nxd5 48. Rxd5 Ra6 49. Rd3 Rc6 50. Rc3 Kd6 51. Kf2 Kc5 52. Ke3 Re6+ 53. Kd3 Rd6+ 54. Kc2 Rf6 55. Kd2 Ra6 56. Kd3 Rd6+ 57. Ke4 Re6+ 58. Kf5 Rf6+ 59. Ke5 Rf7 60. f4 Re7+ 61. Kf5 Rf7+ 62. Kg5 Kd4 63. Rc1 Kc5 64. f5 Ra7 65. Kg6 Rb7 66. Rh1 Kxc4 67. Rh7 Ra7 68. Rxg7 Rxa3 69. Rd7 Rg3+ 70. Kf7 Kc5 71. f6 Kc6 72. Rd1 Rg2 73. Kf8 Rg3 74. f7 Rg2 75. Ke7 Re2+ 76. Kd8 Rf2 77. Rd7 Rf1 78. Ke8 Rf2 79. Re7 1-0

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "9"]
[White "Grondsma, Mark"]
[Black "Monteban, Martijn"]
[Result "0-1"]
[ECO "A35"]
[WhiteElo "2122"]
[BlackElo "2273"]
[PlyCount "86"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Nb3 Nf6 7. e4 d6 8. Be2 0-0 9. Be3 Be6 10. f3 Na5 11. Nd5 Nxb3 12. Qxb3 b6 13. 0-0 Nd7 14. Rab1 Nc5 15. Qd1 a5 16. b3 Bd7 17. Bd4 Bc6 18. Bxg7 Kxg7 19. Qd4+ e5 20. Qe3 Bxd5 21. cxd5 f5 22. a3 fxe4 23. fxe4 Qh4 24. Bf3 Qf4 25. Qxf4 Rxf4 26. g3 Rf7 27. Bg2 b5 28. b4 axb4 29. axb4 Rxf1+ 30. Bxf1 Nxe4 31. Bxb5 Rb8 32. Bc6 Nd2 33. Rd1 Nf3+ 34. Kf2 Nd4 35. b5 Nxb5 36. Rb1 Rf8+ 37. Kg2 Nd4 38. Rb7+ Rf7 39. Rb8 Rc7 40. Ba8 Rc2+ 41. Kh3 Nf3 42. Rd8 Ng1+ 43. Kg4 Rc4+ 0-1

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "2"]
[White "Op den Kelder, Joram"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "2217"]
[BlackElo "2122"]
[PlyCount "45"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. Bd3 b5 11. Rhe1 Bb7 12. Qg3 b4 13. Nd5 exd5 14. exd5 g6 15. Qh4 Kd8 16. Rxe7 Kxe7 17. Re1+ Kf8 18. Bxf6 Nxf6 19. Qxf6 Kg8 20. Nf5 gxf5 21. Qg5+ Kf8 22. Qh6+ Kg8 23. Re3 1-0

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "4"]
[White "Slingerland, Fred"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2338"]
[BlackElo "2122"]
[PlyCount "67"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 Bg7 11. c3 f5 12. Bd3 Be6 13. Qh5 0-0 14. exf5 Bxd5 15. f6 e4 16. fxg7 Re8 17. Be2 Re5 18. Qh6 Rg5 19. 0-0 Ne5 20. Rad1 Rg6 21. Qf4 Bb7 22. Nc2 Qc7 23. Ne3 Qc5 24. Bh5 Nf3+ 25. Bxf3 exf3 26. g3 Re8 27. Rfe1 Rge6 28. Rd4 Qc6 29. h3 Qd7 30. Kh2 Qe7 31. Nf5 Rxe1 32. Nh6+ Kxg7 33. Nf5+ Kg8 34. Qg4+ 1-0

[Event "Haarlem BDO-B"]
[Site "Haarlem"]
[Date "2006.08.??"]
[Round "8"]
[White "Van Nies, Pauline"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2113"]
[BlackElo "2122"]
[PlyCount "37"]
[EventDate "2006.08.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 Bg7 11. c3 f5 12. exf5 Bxf5 13. Nc2 0-0 14. Nce3 Be6 15. Bd3 f5 16. 0-0 Ne7 17. Nxe7+ Qxe7 18. Bxf5 Rf6 19. Nd5 1-0

[Event "Champions Challenge 153rd"]
[Site "Playchess.com INT"]
[Date "2006.07.01"]
[Round "1.2"]
[White "Grondsma, Mark"]
[Black "Ovetchkin, Roman"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2180"]
[BlackElo "2539"]
[PlyCount "40"]
[EventDate "2006.07.01"]
[EventType "k.o. (blitz)"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 e6 5. Ng3 Bg6 6. Bd3 c5 7. c3 Nc6 8. Be3 Qb6 9. Bxg6 hxg6 10. b3 cxd4 11. cxd4 Bb4+ 12. Ke2 Rh4 13. f4 g5 14. Rf1 gxf4 15. Rxf4 Rxf4 16. Bxf4 Nxd4+ 17. Kf1 Rc8 18. a3 Be7 19. Be3 Qa6+ 20. Kg1 Nc2 0-1

[Event "Champions Challenge 153rd"]
[Site "Playchess.com INT"]
[Date "2006.07.01"]
[Round "1.1"]
[White "Ovetchkin, Roman"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "2646"]
[BlackElo "2182"]
[PlyCount "45"]
[EventDate "2006.07.01"]
[EventType "k.o. (blitz)"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d5 3. exd5 Qxd5 4. Nc3 Qd8 5. d4 Nc6 6. d5 Nb8 7. Bf4 Nf6 8. Bb5+ Bd7 9. Qe2 a6 10. Bxd7+ Nbxd7 11. 0-0 Qb6 12. Rfe1 0-0-0 13. a4 h6 14. a5 Qa7 15. Ne5 Nxe5 16. Qxe5 Rd7 17. Na4 Ng4 18. Nb6+ Kd8 19. Qf5 Nf6 20. Rad1 g6 21. Qh3 Bg7 22. Be5 Rd6 23. Qc8# 1-0

[Event "NED-ch U17"]
[Site "Schagen"]
[Date "2006.05.04"]
[Round "6"]
[White "Rademakers, Evert"]
[Black "Grondsma, Mark"]
[Result "1/2-1/2"]
[ECO "B98"]
[BlackElo "2158"]
[PlyCount "93"]
[EventDate "2006.05.01"]
[EventType "swiss"]
[EventRounds "9"]
[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 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 b5 10. Bxf6 gxf6 11. a3 Bb7 12. f5 e5 13. Nde2 Nd7 14. Ng3 Rc8 15. Bd3 Qa5 16. Na2 Nb6 17. Qe2 d5 18. Qd2 Qa4 19. Nc3 Qd4 20. Nxd5 Bxd5 21. exd5 Na4 22. Bxb5+ axb5 23. Qxd4 exd4 24. Rxd4 Nc5 25. Kb1 Kd7 26. d6 Bxd6 27. Rhd1 Rc6 28. Nh5 Kc7 29. Nxf6 Bxh2 30. Nd5+ Kb7 31. Nb4 Rc7 32. c4 Rg8 33. cxb5 Rxg2 34. b6 Rc8 35. Nd3 Nxd3 36. R1xd3 Rcc2 37. Rb3 Be5 38. Rd7+ Kc6 39. Rxf7 Rxb2+ 40. Rxb2 Rxb2+ 41. Kc1 h6 42. Rh7 Rh2 43. b7 Bd6 44. f6 Bxa3+ 45. Kd1 Bd6 46. f7 Rf2 47. Rxh6 1/2-1/2

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.07"]
[Round "3"]
[White "Grondsma, Mark"]
[Black "Bettman, Jan"]
[Result "1-0"]
[ECO "A53"]
[PlyCount "91"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. d5 Bf5 5. Bg5 h6 6. Bxf6 gxf6 7. e4 Bd7 8. Nge2 f5 9. Ng3 fxe4 10. Ncxe4 Qh4 11. Qf3 Be7 12. Nf5 Qf4 13. Qxf4 exf4 14. Nxe7 Kxe7 15. 0-0-0 f5 16. Nc3 Na6 17. a3 Nc5 18. b4 Ne4 19. Nxe4 fxe4 20. Re1 Bf5 21. Bd3 a5 22. b5 Kf6 23. Bxe4 Bg4 24. f3 Bd7 25. Re2 Rhg8 26. Kd2 Rg5 27. Ke1 Ke5 28. Kd2 Kd4 29. Bd3 Rag8 30. Re4+ Kc5 31. Bf1 Rf8 32. Re7 Bc8 33. Rxc7+ Kd4 34. Re7 b6 35. Re4+ Kc5 36. Kc3 Rf7 37. h4 Rg3 38. h5 Bg4 39. Rh4 Bxf3 40. gxf3 Rxf3+ 41. Bd3 Rf2 42. Re2 Rf1 43. Re8 Rc1+ 44. Bc2 Rxc2+ 45. Kxc2 f3 46. Rc8+ 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.07"]
[Round "4"]
[White "Van Amerongen, Arjen"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "C24"]
[PlyCount "18"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. Nf3 Bc5 5. e5 Qe7 6. 0-0 Ng4 7. Bg5 f6 8. exf6 Qd6 9. fxg7 Rg8 1-0

[Event "Haarlem AKN op 10th"]
[Site "Haarlem"]
[Date "2001.07.06"]
[Round "2"]
[White "Haakman, Adri"]
[Black "Grondsma, Mark"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "105"]
[EventDate "2001.07.06"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 e6 5. Ng3 Bg6 6. h4 h6 7. Nd2 Bb4 8. c3 Ba5 9. Nf3 Ne7 10. Bd3 0-0 11. h5 Bxd3 12. Qxd3 Kh8 13. Be3 b5 14. Qd2 Ng8 15. a4 bxa4 16. Rxa4 Nd7 17. b4 Bc7 18. Qd3 Nb6 19. Ra2 Nc4 20. 0-0 Qe7 21. Nd2 Nxd2 22. Qxd2 Bb6 23. f4 f5 24. exf6 Rxf6 25. Qd3 Bc7 26. Rf3 Bd6 27. Qa6 Qc7 28. Raf2 Raf8 29. Qf1 Ne7 30. Bd2 Kg8 31. Ne2 Nf5 32. g4 Ne7 33. g5 hxg5 34. fxg5 Bh2+ 35. Kh1 Rxf3 36. Rxf3 Rxf3 37. Qxf3 Nf5 38. Bf4 Bxf4 39. Nxf4 Qf7 40. Kh2 Nd6 41. Qg4 Qf5 42. Qxf5 exf5 43. Ne6 Nb5 44. Nd8 Nxc3 45. Nxc6 Kf7 46. Nxa7 Ke7 47. b5 Ne4 48. b6 Kd7 49. h6 gxh6 50. gxh6 Ng5 51. Kg3 Kd6 52. Kf4 Nf7 53. h7 1-0

