[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "10"]
[White "Belenkaya, Dina"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "2297"]
[BlackElo "2254"]
[PlyCount "74"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nge2 d6 6. 0-0 Nf6 7. d3 0-0 8. h3 Ne8 9. Be3 Bd7 10. Qc1 Nd4 11. Bh6 Bxh6 12. Qxh6 Nxc2 13. Rad1 Nd4 14. Nf4 e6 15. h4 Qf6 16. Nh3 Qg7 17. Qe3 Rb8 18. f4 f5 19. Rfe1 Nf6 20. Qd2 Rfe8 21. Kh1 b5 22. exf5 gxf5 23. Qf2 Ng4 24. Qf1 b4 25. Nb1 Nf6 26. Qf2 h6 27. Nd2 Kh8 28. Nf3 Ng4 29. Qf1 Nc2 30. Re2 Nce3 31. Qe1 Nxd1 32. Qxd1 Bc6 33. Qe1 e5 34. Nf2 e4 35. Nxg4 exf3 36. Rxe8+ Rxe8 37. Qf2 fxg2+ 0-1

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "8"]
[White "Chabris, Christopher"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2125"]
[BlackElo "2254"]
[PlyCount "73"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. c4 Nf6 8. Bg5 Qa5+ 9. Nc3 e5 10. Qd3 Bc6 11. Bxf6 gxf6 12. 0-0 f5 13. exf5 0-0-0 14. Nd5 Bxd5 15. cxd5 Bh6 16. a3 Kb8 17. b4 Qb5 18. Qxb5 axb5 19. f6 Rc8 20. Ra2 Rhg8 21. h3 Rg6 22. Nh4 Rxf6 23. g4 Rg8 24. Kh1 Rf4 25. Nf5 Bf8 26. Rc2 h5 27. f3 hxg4 28. hxg4 Rgxg4 29. Ne3 Rh4+ 30. Rh2 Rxh2+ 31. Kxh2 Rd4 32. Nf5 Rxd5 33. Rg1 Kc7 34. Rg8 Rd3 35. Rxf8 Rxf3 36. Rxf7+ Kc6 37. Ne7+ 1-0

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "9"]
[White "Donker, Roel"]
[Black "Kapriaga, Rian"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2254"]
[BlackElo "2151"]
[PlyCount "46"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Bb3 a6 7. h3 Ba7 8. Nbd2 0-0 9. Nf1 Be6 10. Ng3 d5 11. Qe2 h6 12. Nh2 Re8 13. Ng4 Nxg4 14. hxg4 Qd7 15. Nf5 Bxf5 16. gxf5 dxe4 17. dxe4 Na5 18. Bxh6 gxh6 19. Qg4+ Kf8 20. Rxh6 Nxb3 21. Rh8+ Ke7 22. f6+ Kd6 23. Rd1+ Nd4 0-1

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "5"]
[White "Donker, Roel"]
[Black "Krsnik Cohar, Ivan Vihor"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2254"]
[BlackElo "2313"]
[PlyCount "33"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe5+ 4. Be2 c6 5. Nf3 Qc7 6. d4 Bf5 7. Bg5 e6 8. Qd2 Nd7 9. 0-0-0 Bd6 10. h3 h6 11. Be3 Ngf6 12. Kb1 Bb4 13. Bf4 Qa5 14. Qe3 Bxc3 15. Qxc3 Qxc3 16. bxc3 Ne4 17. Rdf1 0-1

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "1"]
[White "Donker, Roel"]
[Black "Lettieri, Giuseppe"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2254"]
[BlackElo "2435"]
[PlyCount "86"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Qc7 8. a4 Nc6 9. Be2 Be7 10. 0-0 0-0 11. Nd5 Nxd5 12. exd5 Na5 13. b3 Bg4 14. c4 Bxf3 15. Bxf3 b6 16. Be2 Nb7 17. Rb1 f5 18. f4 a5 19. b4 exf4 20. Bd4 axb4 21. Rxb4 Nc5 22. Rxf4 Bg5 23. Rf3 Rae8 24. Bf1 Re4 25. Bf2 g6 26. Qa1 Rfe8 27. a5 bxa5 28. Rb5 Be3 29. Rxe3 Rxe3 30. Bxe3 Rxe3 31. Qxa5 Qxa5 32. Rxa5 Ne4 33. g3 Re1 34. Kg2 Rd1 35. Ra7 Rd2+ 36. Kg1 h5 37. Rc7 g5 38. Rd7 f4 39. gxf4 gxf4 40. Re7 Ng5 41. Bh3 Nxh3+ 42. Kf1 Ng5 43. Re6 Nxe6 0-1

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "6"]
[White "Donker, Roel"]
[Black "Olund, Joar"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2254"]
[BlackElo "2350"]
[PlyCount "66"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 d6 4. Nc3 a6 5. h4 h5 6. Nh3 b5 7. Ng5 Bb7 8. f3 Nd7 9. Qd2 Rc8 10. a4 b4 11. Nd5 c5 12. Bc4 Nh6 13. dxc5 Nxc5 14. Qxb4 Bxd5 15. Bxd5 0-0 16. Bd4 e6 17. Bxg7 Kxg7 18. Qd4+ Qf6 19. Qxf6+ Kxf6 20. Bc4 Ke7 21. b3 Rfd8 22. Rd1 Ng8 23. Kf2 Nxa4 24. Rd2 Nc5 25. Ra1 Rc6 26. Bf1 Rdc8 27. b4 Nd7 28. Rxa6 Rxc2 29. Raxd6 Ngf6 30. b5 Nb6 31. Rxc2 Rxc2+ 32. Kg3 Kxd6 33. Nxf7+ Ke7 0-1

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "7"]
[White "Lopez Rueda, Juan Pablo"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "1884"]
[BlackElo "2254"]
[PlyCount "127"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. Nc3 Nf6 6. d3 e6 7. 0-0 g6 8. a4 Bg7 9. h3 0-0 10. Re1 Nc6 11. Bf4 b6 12. e5 Ne8 13. Qe2 Rc8 14. Rad1 Nd4 15. Nxd4 cxd4 16. Nb5 dxe5 17. Bxe5 Bxe5 18. Qxe5 Rxc2 19. Nxd4 Rxb2 20. Nf5 exf5 21. Qxb2 Qxa4 22. d4 Nd6 23. Ra1 Qd7 24. d5 Nc4 25. Qd4 Rc8 26. Rec1 Nd6 27. Rxc8+ Nxc8 28. Rc1 Nd6 29. Rc6 b5 30. Qc5 Ne4 31. Qxb5 Qe7 32. Qb2 Qd8 33. Qe5 a5 34. Rc7 a4 35. Qe7 Qxe7 36. Rxe7 Kg7 37. Ra7 Kf6 38. Rxa4 Ke5 39. Ra7 Nd6 40. Ra5 Nc4 41. Rc5 Nb6 42. Rc7 Nxd5 43. Rxf7 h5 44. g3 Ke6 45. Rf8 Ne7 46. Ra8 Nd5 47. Kg2 Ne7 48. h4 Kf6 49. Ra6+ Kf7 50. Kf3 Nd5 51. Ra7+ Kf6 52. Ra6+ Kf7 53. Rd6 Ne7 54. Kf4 Nc8 55. Rd7+ Ke6 56. Rc7 Nd6 57. Rc6 Ke7 58. Rxd6 Kxd6 59. Kg5 Ke5 60. Kxg6 f4 61. Kxh5 fxg3 62. fxg3 Kf5 63. g4+ Kf6 64. Kh6 1-0

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "2"]
[White "Terry, Renato"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2504"]
[BlackElo "2254"]
[PlyCount "27"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. c3 Nf6 7. d4 cxd4 8. cxd4 d5 9. e5 Ne4 10. Ne1 f6 11. Nd3 e6 12. Be3 Qf7 13. f3 Ng5 14. h4 1-0

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "4"]
[White "Valdes, Luis Enrique"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2388"]
[BlackElo "2254"]
[PlyCount "68"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. b3 Be7 5. Bb2 b6 6. Bg2 Ba6 7. Qc2 Nbd7 8. 0-0 c5 9. cxd5 exd5 10. d4 Rc8 11. dxc5 Nxc5 12. Qd1 Nce4 13. Nd4 0-0 14. a3 Qd7 15. b4 Rfe8 16. f3 Nd6 17. Nd2 Bf8 18. Re1 Nc4 19. Nxc4 dxc4 20. Rc1 Nd5 21. e4 c3 22. Ba1 Nxb4 23. axb4 Bxb4 24. Nf5 Qe6 25. Qa4 Qc4 26. Kh1 c2 27. Rf1 Bd2 28. Qa3 Bxc1 29. Rxc1 Red8 30. Qb2 f6 31. h4 Qe2 32. Kh2 Rd2 33. Ne3 Qxe3 34. Qb3+ Qxb3 0-1

[Event "Utrecht OKU op 45th"]
[Site "Utrecht"]
[Date "2018.06.02"]
[Round "2"]
[White "Miezis, Normunds"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2468"]
[BlackElo "2261"]
[PlyCount "34"]
[EventDate "2018.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. exd5 exd5 5. d4 Bb4 6. Bd3 0-0 7. Nge2 dxc4 8. Bxc4 Nc6 9. 0-0 h6 10. a3 Ba5 11. Bf4 Bb6 12. d5 Ne7 13. h3 Bf5 14. Nd4 Be4 15. Nxe4 Nxe4 16. Qd3 Nf6 17. Nf5 Nfxd5 1-0

[Event "Utrecht OKU op 44th"]
[Site "Utrecht"]
[Date "2017.06.10"]
[Round "2"]
[White "Donker, Roel"]
[Black "Andriessen, Bart Jan"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2211"]
[PlyCount "49"]
[EventDate "2017.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Rb1 0-0 9. Be2 cxd4 10. cxd4 b6 11. 0-0 Bb7 12. d5 Nd7 13. Ba3 Rc8 14. Qa4 a6 15. Rfc1 Rxc1+ 16. Rxc1 b5 17. Qb4 Re8 18. Nd4 Qb6 19. Nc6 e6 20. Qd6 Bxc6 21. dxc6 Nf6 22. c7 Qxd6 23. Bxd6 Rc8 24. e5 Ne8 25. Bf3 1-0

[Event "Utrecht OKU op 44th"]
[Site "Utrecht"]
[Date "2017.06.10"]
[Round "3"]
[White "Donker, Roel"]
[Black "Peng, Zhaoqin"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2211"]
[BlackElo "2386"]
[PlyCount "110"]
[EventDate "2017.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Bd2 a5 5. Nc3 0-0 6. Qc2 d5 7. e3 b6 8. cxd5 exd5 9. Ne5 c5 10. Bb5 Ba6 11. Bxa6 Nxa6 12. a3 Bxc3 13. Bxc3 Qc7 14. dxc5 bxc5 15. Qf5 Rad8 16. 0-0 d4 17. exd4 cxd4 18. Bd2 Rd5 19. Rfe1 Re8 20. Bf4 Nc5 21. Ng4 Rxe1+ 22. Rxe1 Rxf5 23. Nxf6+ gxf6 24. Bxc7 Nb3 25. g4 Rd5 26. Bf4 Kg7 27. Kg2 a4 28. Kf3 Rd8 29. h4 h6 30. h5 Rd5 31. Ke4 Rd7 32. Kd3 Nc5+ 33. Kc4 Ne6 34. Bd2 Rc7+ 35. Kb4 Rc2 36. Rd1 Rxb2+ 37. Kc4 Rc2+ 38. Kb4 Rb2+ 39. Kc4 Ra2 40. Kb4 Rb2+ 41. Kc4 Rb3 42. f4 Rxa3 43. f5 Ng5 44. Bxg5 fxg5 45. Rxd4 Rf3 46. Kd5 Rf4 47. Rd1 Rxg4 48. Ke5 Rf4 49. Rd6 Kf8 50. Rxh6 Kg7 51. Ra6 Rb4 52. h6+ Kh7 53. Kf6 g4 54. Kxf7 g3 55. Rg6 Rb3 0-1

[Event "Oberliga Nord W 1213"]
[Site "Germany"]
[Date "2013.04.14"]
[Round "9.4"]
[White "Nodorp, Dieter"]
[Black "Donker, Roel"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "2119"]
[BlackElo "2228"]
[PlyCount "38"]
[EventDate "2012.10.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Stade"]
[BlackTeam "Esens"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 Ne4 6. Bd2 Bxc3 7. bxc3 Nxd2 8. Qxd2 d6 9. Bg2 Nc6 10. 0-0 Na5 11. dxc5 dxc5 12. Qxd8+ Kxd8 13. Ne5 Ke7 14. Rab1 a6 15. Nd3 Kd6 16. Rb6+ Kc7 17. Rbb1 Kd6 18. Rb6+ Kc7 19. Rbb1 Kd6 1/2-1/2

[Event "Oberliga Nord W 1213"]
[Site "Germany"]
[Date "2013.03.17"]
[Round "8.6"]
[White "Donker, Roel"]
[Black "Wittje, Berthold"]
[Result "1/2-1/2"]
[ECO "E49"]
[WhiteElo "2228"]
[BlackElo "2244"]
[PlyCount "136"]
[EventDate "2012.10.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Esens"]
[BlackTeam "Oldenburg Union"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nge2 d5 7. 0-0 Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 e5 11. Ng3 exd4 12. exd4 cxd4 13. cxd4 Qxd4 14. Qxd4 Nxd4 15. Bb2 Be6 16. Bxd4 Bxc4 17. Rfc1 b5 18. Nf5 Rfd8 19. Nh6+ gxh6 20. Bxf6 Rd6 21. Be7 Rd7 22. Bf6 Rd6 23. Be7 Rg6 24. Rc3 Re8 25. Bc5 a6 26. Rd1 h5 27. Re3 Rc8 28. Bb4 Be6 29. Red3 h4 30. Rd8+ Rxd8 31. Rxd8+ Kg7 32. Bc3+ Kh6 33. Rd6 h3 34. g3 Bc4 35. Rxg6+ Kxg6 36. f3 Kf5 37. Kf2 Ke6 38. Ke3 Kd5 39. Bg7 Bf1 40. Bf8 a5 41. Be7 Kc4 42. Kd2 Bg2 43. f4 Bf3 44. Bd8 b4 45. Bxa5 bxa3 46. Bc3 Bg4 47. Bf6 Bf5 48. Be5 Kd5 49. Ke3 h5 50. Bf6 Kc4 51. Kd2 Kb3 52. Be5 Be4 53. Bf6 Bc6 54. Be5 Kc4 55. Bf6 Kd5 56. Ke3 Ke6 57. Ba1 Kf5 58. Bc3 Kg4 59. Bf6 a2 60. Bc3 Bd5 61. Bf6 Bb7 62. Bc3 Kf5 63. Bb2 Ke6 64. Bc3 Kd6 65. Bf6 Kc5 66. Be5 Kb4 67. Bf6 Kb3 68. Kd2 Bc6 1/2-1/2

[Event "Oberliga Nord W 1213"]
[Site "Germany"]
[Date "2013.02.24"]
[Round "7.5"]
[White "Donker, Roel"]
[Black "Juhnke, Juergen"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2228"]
[BlackElo "2273"]
[PlyCount "111"]
[EventDate "2012.10.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Esens"]
[BlackTeam "Lister Turm"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. Be3 Na6 8. 0-0 Ng4 9. Bg5 Qe8 10. d5 h6 11. Bh4 f5 12. Nd2 Nf6 13. f3 c5 14. a3 h5 15. b4 Bh6 16. Bf2 b6 17. Nb3 fxe4 18. Nxe4 Nxe4 19. fxe4 Qa4 20. b5 Nc7 21. Bxh5 gxh5 22. Qxh5 Bg7 23. Be3 Bd7 24. Bh6 Rxf1+ 25. Rxf1 Rf8 26. Rxf8+ Kxf8 27. Bxg7+ Kxg7 28. Qg5+ Kf7 29. Qd8 Ne8 30. Qxd7+ Kf8 31. Qf5+ Ke7 32. Qg5+ Kd7 33. Qg4+ Ke7 34. Qg5+ Kd7 35. Qg4+ Ke7 36. Nd2 Qxa3 37. Qg5+ Kf7 38. Qh5+ Ke7 39. Qh7+ Kd8 40. Qh4+ Kd7 41. Nf3 Qc1+ 42. Kf2 Qxc4 43. Qg4+ Kc7 44. Ng5 Qxb5 45. Ne6+ Kb8 46. Nd8 Nf6 47. Qe6 Nxe4+ 48. Ke3 Qc4 49. Nc6+ Kb7 50. Na5+ bxa5 51. Qd7+ Kb8 52. Qd8+ Kb7 53. Qd7+ Kb8 54. Qd8+ Kb7 55. Qd7+ Kb8 56. Qd8+ 1/2-1/2

[Event "Oberliga Nord W 1213"]
[Site "Germany"]
[Date "2013.02.03"]
[Round "6.4"]
[White "Donker, Roel"]
[Black "Mossakowski, Florian"]
[Result "0-1"]
[ECO "E41"]
[WhiteElo "2228"]
[BlackElo "2320"]
[PlyCount "62"]
[EventDate "2012.10.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Esens"]
[BlackTeam "Delmenhorst"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 8. 0-0 e5 9. Nd2 0-0 10. Rb1 b6 11. h3 Re8 12. Qc2 h6 13. f4 exd4 14. exd4 cxd4 15. Bb2 d5 16. Rbd1 Bb7 17. Nf3 Rc8 18. Qa4 Qd6 19. Bf5 Rcd8 20. Nxd4 Nxd4 21. Rxd4 Qe7 22. Bc1 dxc4 23. Qxa7 Rxd4 24. cxd4 Ra8 25. Qxb6 Rxa2 26. d5 Nxd5 27. Qd4 Ne3 28. Bxe3 Rxg2+ 29. Kh1 Rd2+ 30. Kg1 Rxd4 31. Bxd4 Qe2 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.27"]
[Round "9"]
[White "Donker, Roel"]
[Black "Vogel, Jaap"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "2228"]
[BlackElo "2158"]
[PlyCount "14"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 c6 5. Nf3 d5 6. 0-0 Bd6 7. Nc3 0-0 1/2-1/2

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.26"]
[Round "8"]
[White "Donker, Roel"]
[Black "Afek, Yochanan"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "2228"]
[BlackElo "2312"]
[PlyCount "58"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[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. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. g3 d6 8. Bg2 Bg7 9. Nf3 0-0 10. 0-0 Nbd7 11. Qc2 Qa5 12. Rd1 Rfb8 13. Bd2 Qc7 14. b3 Qb7 15. Rab1 Ra7 16. e4 Ng4 17. h3 Nge5 18. Ne1 Nb6 19. f4 Ned7 20. Be3 Na8 21. a3 Qc7 22. a4 Rab7 23. Na2 Nab6 24. Rdc1 Nxa4 25. bxa4 Rb2 26. Rxb2 Rxb2 27. Qd1 Be2 28. Qc2 Rxc2 29. Rxc2 Bd1 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.25"]
[Round "7"]
[White "Bosboom, Manuel"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2402"]
[BlackElo "2228"]
[PlyCount "53"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 e5 2. b3 Nc6 3. Bb2 f5 4. g3 Nf6 5. Bg2 Bc5 6. e3 d6 7. a3 f4 8. b4 fxe3 9. dxe3 Bb6 10. Qc2 0-0 11. h3 Ne7 12. Nd2 Bf5 13. Qc3 c6 14. Ne2 Qe8 15. g4 Be6 16. Ng3 a5 17. Rd1 axb4 18. axb4 Ng6 19. g5 Nh4 20. gxf6 Nxg2+ 21. Kf1 Bxe3 22. fxe3 Qg6 23. Kxg2 h5 24. Nde4 Bf5 25. Nxd6 Bc2 26. c5 h4 27. Qc4+ 1-0

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.24"]
[Round "6"]
[White "Hopman, Pieter"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "E16"]
[WhiteElo "2344"]
[BlackElo "2228"]
[PlyCount "80"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[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. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. g3 Bb7 6. Bg2 0-0 7. 0-0 h6 8. a3 Bxd2 9. Qxd2 Be4 10. Rd1 d6 11. b4 Nbd7 12. Bb2 a6 13. Rac1 b5 14. c5 Nd5 15. Ne1 Bxg2 16. Nxg2 f5 17. Re1 f4 18. Rcd1 a5 19. e4 fxe3 20. fxe3 axb4 21. axb4 Ra4 22. e4 Nxb4 23. Nf4 Qe8 24. cxd6 cxd6 25. Ra1 Rxa1 26. Bxa1 Nc6 27. Qa2 Kh8 28. Qa6 e5 29. Qxc6 exf4 30. Qxd6 f3 31. Kf1 Qh5 32. h4 Qg4 33. Kf2 Qh3 34. d5 Kh7 35. h5 Rf7 36. Ke3 f2 37. Qg6+ Kg8 38. Rc1 f1Q 39. Rc8+ Nf8 40. Rxf8+ Kxf8 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.23"]
[Round "5"]
[White "Donker, Roel"]
[Black "Guramishvili, Sopiko"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2228"]
[BlackElo "2418"]
[PlyCount "62"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. h3 Bxf3 6. Qxf3 e6 7. Nc3 Nbd7 8. Bd3 Bb4 9. Bd2 0-0 10. a3 Ba5 11. cxd5 exd5 12. b4 Bc7 13. b5 Re8 14. 0-0 Ba5 15. bxc6 bxc6 16. Rfc1 Rb8 17. Be1 Nf8 18. Qd1 Ne6 19. Qa4 c5 20. Bb5 Rf8 21. Rab1 cxd4 22. exd4 Bb6 23. Ne2 Ne4 24. Bb4 Qf6 25. Bxf8 Qxf2+ 26. Kh1 Nf4 27. Nxf4 Ng3+ 28. Kh2 Qxf4 29. Bd6 Qxd6 30. Rd1 Ne2+ 31. Kh1 Bc7 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.22"]
[Round "4"]
[White "Donker, Roel"]
[Black "Van Delft, Merijn"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2228"]
[BlackElo "2395"]
[PlyCount "99"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. Nc3 e6 6. h3 Bh5 7. g4 Bg6 8. Ne5 Nbd7 9. h4 dxc4 10. Nxg6 hxg6 11. Bxc4 Bb4 12. Qf3 Nd5 13. e4 N5b6 14. Bb3 Rxh4 15. g5 Rxh1+ 16. Qxh1 Qe7 17. a3 Bd6 18. f4 0-0-0 19. Be3 Kb8 20. 0-0-0 a6 21. Kb1 Bc7 22. Qh7 Qf8 23. Rf1 Nc8 24. f5 gxf5 25. exf5 exf5 26. Rxf5 f6 27. g6 Ne7 28. Rf1 f5 29. Bg5 Nf6 30. Qh3 Nxg6 31. Qxf5 Ne7 32. Qf2 Bb6 33. Bf4+ Ka8 34. Be5 Qe8 35. Na4 Ba7 36. Nc5 Ng4 37. Ne6 Bb6 38. Qg3 Qg6+ 39. Ka2 Nxe5 40. Qxe5 Rc8 41. Qd6 Qg2 42. Rc1 Nf5 43. Qd7 Rb8 44. d5 cxd5 45. Bxd5 Qg3 46. Nc7+ Ka7 47. Nxa6 Kxa6 48. Bc4+ Ka7 49. Qa4+ Ba5 50. Qxa5# 1-0

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.21"]
[Round "3"]
[White "Van Osch, Mees"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "2083"]
[BlackElo "2228"]
[PlyCount "132"]
[EventDate "2012.10.19"]
[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 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Nxd5 cxd5 13. Qxd5 Qc7 14. Qc5 Qb7 15. b3 Bf5 16. Bd3 Rac8 17. Qa5 Rc3 18. Bxf5 Rxe3 19. Be4 Qc8 20. Rd5 Qe6 21. Rd8 Qf6 22. Rxf8+ Bxf8 23. Kb1 Qd4 24. Qd5 Qc3 25. Rd1 e6 26. Qd2 Qc5 27. c4 h5 28. Qd4 Re2 29. Qxc5 Bxc5 30. Rd8+ Kg7 31. Rc8 Ba3 32. c5 Rxg2 33. c6 f5 34. Bd3 Rb2+ 35. Kc1 Rxb3+ 36. Kc2 Rb6 37. Bc4 Kf6 38. Kd3 Ke5 39. f4+ Kd6 40. Ke3 Bc5+ 41. Kf3 Rb2 42. h4 Rf2+ 43. Kg3 Rc2 44. Bb3 Re2 45. Re8 Re3+ 46. Kg2 Re2+ 47. Kf3 Re3+ 48. Kg2 Re4 49. Kf3 Bb6 50. Rg8 a5 51. Rxg6 a4 52. Bd1 Re3+ 53. Kg2 Ra3 54. Kf1 Rxa2 55. Rg2 Rxg2 56. Kxg2 a3 57. Bb3 Kc5 58. Bxe6 Kd4 59. Kf3 Kc3 60. Ke2 Bc7 61. Ke3 Kb2 62. Kd4 Bxf4 63. Kc5 Bc7 64. Bc4 a2 65. Bxa2 Kxa2 66. Kd5 f4 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.20"]
[Round "2"]
[White "Donker, Roel"]
[Black "L'Ami, Alina"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2228"]
[BlackElo "2376"]
[PlyCount "72"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[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. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 c6 7. 0-0 Bf5 8. Ne1 Be6 9. b3 d5 10. cxd5 cxd5 11. e3 Bg4 12. f3 Bf5 13. g4 Bc8 14. Nd3 Nc6 15. Bd2 b6 16. b4 Qd6 17. Qe2 Bb7 18. Be1 Rfc8 19. Bg3 Qd7 20. Rac1 Ne8 21. Kh1 e6 22. f4 Nd6 23. Bh3 Ba6 24. a3 Ne4 25. Nb1 Nd8 26. Rfd1 Rxc1 27. Rxc1 Rc8 28. Rxc8 Qxc8 29. Bf1 Bb5 30. Qb2 Nb7 31. Be1 Nbd6 32. Kg1 Nc4 33. Qc2 Qa6 34. Ne5 Nxe5 35. Bxb5 Nf3+ 36. Kh1 Qxb5 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.19"]
[Round "1"]
[White "Djuric, Olgica"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "1880"]
[BlackElo "2228"]
[PlyCount "58"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[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. Bf4 c5 4. e3 b6 5. c4 Bb7 6. Nc3 cxd4 7. Nxd4 a6 8. Qb3 d6 9. 0-0-0 Nh5 10. Bg3 Nxg3 11. hxg3 Nd7 12. Qc2 h6 13. e4 Qc7 14. f4 0-0-0 15. Be2 g6 16. Rhe1 h5 17. Rh1 Be7 18. Rd2 Nf6 19. b3 Kb8 20. Bf3 Ng4 21. Bxg4 hxg4 22. Qd1 Rxh1 23. Qxh1 d5 24. exd5 exd5 25. Qf1 dxc4 26. Qxc4 Qd7 27. Kb2 Qd6 28. Nb1 Bf6 29. Nc3 Bxd4 0-1

[Event "Oberliga Nord W 1213"]
[Site "Germany"]
[Date "2012.10.14"]
[Round "1.5"]
[White "Donker, Roel"]
[Black "Nimtz, Manfred"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2228"]
[BlackElo "2239"]
[PlyCount "72"]
[EventDate "2012.10.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Esens"]
[BlackTeam "Braunschweig Gliesmarode"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 0-0 8. Be2 c5 9. Rb1 b6 10. 0-0 Bb7 11. Qd3 Ba6 12. Qe3 Qc8 13. d5 Bxe2 14. Qxe2 e6 15. c4 exd5 16. cxd5 Qa6 17. Rb2 Qxe2 18. Rxe2 Nd7 19. e5 c4 20. Ba3 Rfe8 21. Rfe1 Rac8 22. Nd4 Rxe5 23. Nc6 Rxe2 24. Rxe2 Bf6 25. Ne7+ Bxe7 26. Rxe7 Rd8 27. d6 a5 28. Kf1 b5 29. Ke2 b4 30. Bc1 Nf6 31. Rc7 Rxd6 32. Rxc4 Nd7 33. Bd2 f6 34. a3 bxa3 35. Ra4 Nb6 36. Rxa5 Rxd2+ 0-1

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2011.05.15"]
[Round "9.9"]
[White "Lemmers, Oscar"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2389"]
[BlackElo "2208"]
[PlyCount "70"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]
[WhiteTeam "Voerendaal"]
[BlackTeam "Groningen"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 g6 5. d4 cxd4 6. Qxd4 Nc7 7. Bc4 Bg7 8. Qh4 b5 9. Bb3 Ne6 10. Bxe6 dxe6 11. Bh6 0-0 12. Na3 Nc6 13. 0-0 Rb8 14. Rfd1 Qc7 15. Nc2 Bb7 16. Ne3 Rfd8 17. Ng4 Nxe5 18. Rxd8+ Rxd8 19. Ngxe5 Bxe5 20. Nxe5 Qxe5 21. Qxe7 Qd6 22. Qxd6 Rxd6 23. f3 f6 24. a4 a6 25. axb5 axb5 26. Ra7 Rd7 27. Ra5 Rd5 28. Be3 g5 29. b4 Bc6 30. Ra6 Rd1+ 31. Kf2 Bd5 32. f4 gxf4 33. Bxf4 Rd3 34. Ra7 Rxc3 35. g4 Rf3+ 0-1

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2011.04.09"]
[Round "8.9"]
[White "Donker, Roel"]
[Black "Wagenaar, Ron"]
[Result "1/2-1/2"]
[ECO "B37"]
[WhiteElo "2208"]
[BlackElo "2187"]
[PlyCount "119"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Enschede Braceland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 g6 2. Nf3 Bg7 3. c4 c5 4. Nc3 cxd4 5. Nxd4 Nc6 6. Nc2 d6 7. e4 Bxc3+ 8. bxc3 Qa5 9. Qd3 Nf6 10. Nb4 Nxb4 11. cxb4 Qxb4+ 12. Bd2 Qc5 13. Be3 Qa5+ 14. Bd2 Qa4 15. Be2 Be6 16. Rb1 Rc8 17. Rxb7 Qa6 18. Rb4 0-0 19. 0-0 Rc5 20. Be3 Ra5 21. f4 Nd7 22. Qd4 f6 23. Rfb1 Rxa2 24. Bf1 Qc6 25. h4 Nc5 26. e5 fxe5 27. Qd1 exf4 28. Bd4 Bf5 29. R1b2 Rxb2 30. Bxb2 Nd3 31. Rb5 Nxb2 32. Rxb2 Qc5+ 33. Kh2 Qa3 34. Rb3 Qc5 35. Rb5 Qe3 36. Rb3 Qe5 37. Rb5 Qf6 38. Qe1 e5 39. Rb7 Rf7 40. Rb8+ Kg7 41. Qf2 Be4 42. c5 dxc5 43. Bc4 Rf8 44. Rb5 Rc8 45. Qe1 Ba8 46. Ra5 Rc7 47. Ra6 Qf5 48. Qa5 Qd7 49. Be6 Qe7 50. Qe1 Kh6 51. g4 fxg3+ 52. Qxg3 Qf6 53. Bd5 Bc6 54. Bxc6 Rxc6 55. Qe3+ Kg7 56. Rxa7+ Kg8 57. Qb3+ Re6 58. Qb8+ Qf8 59. Qc7 Qf2+ 60. Kh3 1/2-1/2

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2011.03.12"]
[Round "7.8"]
[White "Donker, Roel"]
[Black "Janssen, Ruud"]
[Result "0-1"]
[ECO "E41"]
[WhiteElo "2208"]
[BlackElo "2498"]
[PlyCount "109"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Hilversum HSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 8. 0-0 e5 9. Nd2 0-0 10. Rb1 Qe7 11. d5 Nd8 12. Qc2 g6 13. f4 Nh5 14. f5 gxf5 15. Bxf5 Bxf5 16. Qxf5 Ng7 17. Qf6 Qxf6 18. Rxf6 Ne8 19. Rf5 Ng7 20. Rf6 Ne8 21. Rf5 f6 22. e4 b6 23. Nf1 Ng7 24. Bh6 Nxf5 25. Bxf8 Kxf8 26. exf5 Ke7 27. Kf2 Nf7 28. a4 h5 29. a5 bxa5 30. Rb7+ Kf8 31. Ng3 a4 32. Nxh5 a3 33. Rb3 Ke7 34. h3 a5 35. Rxa3 e4 36. Ke3 Ne5 37. Ra4 Nd7 38. Kxe4 Nb6 39. Ra2 Nxc4 40. Kd3 Ne5+ 41. Ke4 a4 42. Nf4 Kf7 43. g4 a3 44. Ne6 Ra4+ 45. Ke3 Nc4+ 46. Kd3 Ke7 47. Nc7 Ne5+ 48. Kc2 Ra5 49. Kb3 c4+ 50. Kb4 Rc5 51. Nb5 Nd3+ 52. Ka5 Nf4 53. Rxa3 Nxd5 54. Ka6 Kd7 55. Ra1 0-1

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2011.02.12"]
[Round "6.8"]
[White "Jens, Jelmer"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "B78"]
[WhiteElo "2386"]
[BlackElo "2208"]
[PlyCount "93"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Groningen"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Qd2 Nc6 8. f3 0-0 9. Bc4 Bd7 10. 0-0-0 Rc8 11. Bb3 Ne5 12. Kb1 Re8 13. h4 h5 14. Bh6 Nc4 15. Bxc4 Rxc4 16. Bxg7 Kxg7 17. g4 hxg4 18. h5 Rh8 19. hxg6 fxg6 20. f4 e5 21. fxe5 dxe5 22. Rxh8 Qxh8 23. Nde2 Qf8 24. Qg5 Qe8 25. Rh1 Rxe4 26. Qh6+ Kf7 27. Nxe4 Nxe4 28. Qe3 Bf5 29. Qb3+ Kf6 30. Qxb7 Qd7 31. Qb4 g3 32. Nxg3 Nxg3 33. Qh4+ g5 34. Qxg3 Bxc2+ 35. Ka1 Bg6 36. Rg1 g4 37. Rf1+ Bf5 38. Qxg4 Qd3 39. Qh4+ Ke6 40. Qh6+ Ke7 41. Rg1 Be6 42. Qg5+ Kd6 43. Qd8+ Bd7 44. Qb8+ Kd5 45. Qxa7 Bf5 46. Qa5+ Ke4 47. Re1+ 1-0

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2011.01.08"]
[Round "5.7"]
[White "Wunnink, Michael"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "E37"]
[WhiteElo "2264"]
[BlackElo "2208"]
[PlyCount "80"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam Caissa"]
[BlackTeam "Groningen"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 e5 8. e3 exd4 9. cxd5 Qxd5 10. Nf3 Nd6 11. Nxd4 Bd7 12. f3 f5 13. Ne2 0-0 14. Nf4 Qe5 15. Bd2 Re8 16. 0-0-0 b5 17. Kb1 Qe7 18. Nd5 Qf7 19. Nxc7 Rc8 20. Bc3 Rxc7 21. Rxd6 a5 22. Bxb5 Bxb5 23. Rd8+ Be8 24. Rhd1 Rca7 25. Qa4 Na6 26. Qxa5 Nc7 27. Qe5 Ne6 28. R8d6 Ba4 29. R1d2 Bb3 30. h4 h6 31. Bb4 Rc8 32. Bc3 Kh7 33. g3 Rc5 34. Rxe6 Rxe5 35. Rxe5 Rd7 36. Kc1 Rd5 37. Rdxd5 Bxd5 38. f4 Be4 39. Kd2 Qg6 40. Re7 Qd6+ 0-1

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2010.12.11"]
[Round "4.5"]
[White "Donker, Roel"]
[Black "Akrawi, Samir"]
[Result "1/2-1/2"]
[ECO "D20"]
[WhiteElo "2208"]
[BlackElo "2232"]
[PlyCount "121"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Rotterdam"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. 0-0 Be6 7. Bb5 Bc5 8. Qc2 Qd6 9. Bf4 Qxf4 10. Qxc5 Nge7 11. Nxd4 0-0 12. Bxc6 Nxc6 13. Nxc6 bxc6 14. Nc3 Qd6 15. Na4 Rab8 16. b3 Rb5 17. Qxa7 Rh5 18. f4 Bg4 19. Qe3 Rd8 20. h3 Bc8 21. Qf3 Qh6 22. Rad1 Re8 23. Rf2 Rh4 24. f5 Qg5 25. Rfd2 h6 26. Rd4 Kh7 27. Nc5 Rf4 28. Qd3 Qe7 29. b4 g6 30. fxg6+ fxg6 31. Rd8 Rff8 32. Rxe8 Rxe8 33. a4 Rf8 34. Rf1 Rxf1+ 35. Qxf1 Be6 36. a5 Qd6 37. a6 Qd4+ 38. Kh1 Bc4 39. Qf8 Qa1+ 40. Kh2 Qe5+ 41. Kg1 Qa1+ 42. Kh2 Qe5+ 43. g3 Qb2+ 44. Kg1 h5 45. g4 hxg4 46. hxg4 Qxb4 47. a7 Qb1+ 48. Kg2 Qa2+ 49. Kf3 Qa3+ 50. Kf4 Qc1+ 51. Kg3 Qe3+ 52. Kh4 Qe1+ 53. Kg5 Qe3+ 54. Kf6 Qf2+ 55. Ke7 Qxc5+ 56. Ke8 Qxa7 57. Qe7+ Kh8 58. Qf6+ Kh7 59. Qe7+ Kh6 60. Qh4+ Kg7 61. Qe7+ 1/2-1/2

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2010.11.20"]
[Round "3.8"]
[White "Donker, Roel"]
[Black "Broekmeulen, Jasper"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "2208"]
[BlackElo "2372"]
[PlyCount "88"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Calder HMC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Nf3 d5 5. Bg5 Ne4 6. Bh4 Nxc3 7. bxc3 g6 8. e3 Bg7 9. cxd5 Qxd5 10. Qb3 Qxb3 11. axb3 c5 12. Bb5+ Bc6 13. Bxc6+ Nxc6 14. Ke2 cxd4 15. Nxd4 Bxd4 16. exd4 0-0-0 17. Rhd1 Rd5 18. Rd3 Rhd8 19. f4 Rb5 20. Ra3 Rh5 21. Rh3 Rf5 22. Re3 Rd7 23. Kf3 e6 24. g4 Ra5 25. Rxa5 Nxa5 26. b4 Nc4 27. Re2 Kb7 28. Bf6 Kc6 29. f5 exf5 30. gxf5 Rd5 31. Be5 Nxe5+ 32. dxe5 gxf5 33. Kf4 Rd3 34. Rc2 Kd5 35. Ra2 Ke6 36. Rxa7 Rxc3 37. Rb7 Rc4+ 38. Kg5 Rxb4 39. h4 f4 40. h5 f3 41. Ra7 f2 42. Ra1 Re4 43. Rf1 Rxe5+ 44. Kh6 Rf5 0-1

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2010.10.09"]
[Round "2.5"]
[White "Wantola, Ivo"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2301"]
[BlackElo "2208"]
[PlyCount "57"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 138 Extra"]
[Source "ChessBase"]
[SourceDate "2010.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2010.10.29"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Groningen"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. 0-0 a6 7. Re1 Be7 8. e4 d6 9. d4 cxd4 10. Nxd4 Qc7 11. Be3 0-0 12. Rc1 Nbd7 13. f4 Rfe8 14. g4 h5 15. gxh5 Rac8 16. b3 Qb8 17. Bf3 Bf8 18. Qd2 Nc5 19. Bf2 Qa8 20. Qe2 e5 21. Nf5 exf4 22. Bd4 Nfxe4 23. Qg2 f6 24. Qg6 Ng5 25. Bd5+ Bxd5 26. Nxd5 Nd7 27. Bxf6 Nf3+ 28. Kf2 Nfe5 29. Nde7+ 1-0

[Event "NED-chT 1011"]
[Site "Netherlands"]
[Date "2010.09.25"]
[Round "1.9"]
[White "Donker, Roel"]
[Black "Kabatianski, Alexander"]
[Result "1/2-1/2"]
[ECO "E42"]
[WhiteElo "2208"]
[BlackElo "2439"]
[PlyCount "78"]
[EventDate "2010.09.25"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 138 Extra"]
[Source "ChessBase"]
[SourceDate "2010.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2010.10.29"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Homburg Apeldoorn"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nge2 d5 7. a3 dxc4 8. Bxc4 Bxc3+ 9. Nxc3 cxd4 10. exd4 Nc6 11. Be3 b6 12. 0-0 Bb7 13. Rc1 Rc8 14. Ba2 Ne7 15. Bg5 Qd7 16. Bxf6 gxf6 17. Qg4+ Kh8 18. Qh4 Kg7 19. Qg4+ Ng6 20. d5 f5 21. dxe6 fxe6 22. Rcd1 Qe7 23. Qb4 Rc5 24. f4 e5 25. Rfe1 a5 26. Qxb6 Nxf4 27. Rd6 Rc7 28. Re3 Kh8 29. Rg3 Bxg2 30. Rf6 Rcc8 31. Rxf8+ Rxf8 32. Rxg2 Nxg2 33. Kxg2 Qg5+ 34. Kf1 Rd8 35. Bd5 Qc1+ 36. Ke2 Qc2+ 37. Ke1 Qc1+ 38. Ke2 Qc2+ 39. Ke1 Qc1+ 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.30"]
[Round "9"]
[White "Donker, Roel"]
[Black "Holm Pedersen, Sejer"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2140"]
[BlackElo "2256"]
[PlyCount "125"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. Bg2 d5 5. 0-0 Nc6 6. b3 Be7 7. Bb2 0-0 8. Nbd2 cxd4 9. Nxd4 Qb6 10. Nxc6 bxc6 11. e4 Ba6 12. Re1 Rfd8 13. exd5 cxd5 14. Nf3 Rac8 15. a3 Ne4 16. Qd4 Qxd4 17. Bxd4 Rxc2 18. Bxa7 Ra8 19. Be3 Rb2 20. Nd4 Bf6 21. b4 Nd6 22. Reb1 Rxb1+ 23. Rxb1 Bc4 24. Bf1 Rxa3 25. b5 Bxf1 26. Kxf1 e5 27. Nb3 d4 28. Bc1 Ra8 29. b6 Nb7 30. Bd2 Bd8 31. Na5 Rb8 32. Nc6 Rc8 33. Na5 Rb8 34. Nc6 Ra8 35. Nxe5 Ra6 36. Nc4 f6 37. Ke2 Kf7 38. Rb5 Ke8 39. Na5 Nxa5 40. Bxa5 Rxa5 41. Rxa5 Bxb6 42. Ra2 Kf7 43. Kd3 Kg6 44. Ra6 Bc5 45. Ke4 Bf8 46. Kxd4 Kg5 47. Ra7 Kg6 48. g4 Bd6 49. h3 Bh2 50. Ra5 Bc7 51. Rb5 Bf4 52. Ke4 Bd2 53. f4 Be1 54. Rh5 h6 55. Rb5 Bf2 56. f5+ Kg5 57. Rb7 Kh4 58. Rxg7 Kxh3 59. Kd5 Bh4 60. Ke6 Bg5 61. Rxg5 hxg5 62. Kxf6 Kxg4 63. Ke5 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.29"]
[Round "8"]
[White "Nabuurs, Joep"]
[Black "Donker, Roel"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "2191"]
[BlackElo "2140"]
[PlyCount "81"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 Nxc3 13. Qxc3 Bxd4 14. Rxd4 Qb6 15. Bc4 Ba6 16. Bxa6 Qxa6 17. Qc4 Qa5 18. Rhd1 h5 19. Qxc6 Rac8 20. Qa4 Qg5+ 21. R1d2 Qe3 22. b3 Rc5 23. Kb2 Qc3+ 24. Kb1 Re5 25. Qd7 Kh7 26. Re4 Rxe4 27. fxe4 Qe5 28. Qxa7 Qxe4 29. Qf2 Qc6 30. a4 e5 31. Qe2 e4 32. Qb5 Qf6 33. Re2 Rd8 34. Re1 Qc3 35. Qe2 f5 36. Rc1 e3 37. Qb5 Rd2 38. Qe8 e2 39. h4 Rxc2 40. Qf7+ Kh8 41. Qf8+ 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.28"]
[Round "7"]
[White "Donker, Roel"]
[Black "Heemskerk, Wim"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "2140"]
[BlackElo "2236"]
[PlyCount "78"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. d4 e6 2. g3 f5 3. Bg2 Nf6 4. Nf3 d5 5. 0-0 Bd6 6. c4 c6 7. Bf4 Bxf4 8. gxf4 0-0 9. Ne5 Nbd7 10. Nc3 Ne4 11. Nxe4 fxe4 12. e3 Nxe5 13. dxe5 Bd7 14. Qd2 Be8 15. c5 Kh8 16. f3 exf3 17. Rxf3 Bg6 18. Rf2 Bf5 19. Rd1 g5 20. Kh1 gxf4 21. Rxf4 Qg5 22. Rg1 Rg8 23. Rff1 Qe7 24. Qd4 Rg4 25. Rf4 Rag8 26. b4 R8g5 27. a3 Qg7 28. Rxg4 Rxg4 29. Qd1 Rxg2 30. Rxg2 Be4 31. Qf1 Bxg2+ 32. Qxg2 Qxe5 33. Qf2 Qe4+ 34. Kg1 Kg7 35. h4 Qg4+ 36. Kh2 e5 37. Qe1 Kg6 38. Qf2 Qf5 39. Qg3+ Kh5 0-1

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.27"]
[Round "6"]
[White "Haast, Anne"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2251"]
[BlackElo "2140"]
[PlyCount "115"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[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. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Be6 14. Ne4 Rb8 15. Bc4 Qc8 16. g4 Qb7 17. b3 Rfd8 18. h4 h6 19. g5 h5 20. Qa5 Qc7 21. Qxc7 Nxc7 22. Bxa7 Rxd1+ 23. Rxd1 Ra8 24. Bxe6 Nxe6 25. Rd7 Nf8 26. Rb7 Nh7 27. a4 f6 28. gxf6 Nxf6 29. a5 Nxe4 30. fxe4 Kh7 31. a6 g5 32. Bb8 Kg6 33. a7 gxh4 34. Rd7 h3 35. Rd3 Bh6+ 36. Kd1 h2 37. Rg3+ Bg5 38. Rh3 Be3 39. Rxh2 Bxa7 40. Bxe5 Re8 41. Rg2+ Kh7 42. Rg7+ Kh6 43. Bf6 Bb8 44. Re7 Rxe7 45. Bxe7 Bg3 46. Ke2 h4 47. Kf3 Kh5 48. b4 Be5 49. c4 h3 50. c5 Kg6 51. Bd6 h2 52. Kg2 Bc3 53. b5 cxb5 54. c6 Ba5 55. c7 Bxc7 56. Bxc7 Kf6 57. Kxh2 b4 58. Kg3 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.26"]
[Round "5"]
[White "Schiffer, Kai Uwe"]
[Black "Donker, Roel"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2318"]
[BlackElo "2140"]
[PlyCount "9"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. d4 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.24"]
[Round "4"]
[White "Donker, Roel"]
[Black "Afek, Yochanan"]
[Result "1/2-1/2"]
[ECO "B37"]
[WhiteElo "2140"]
[BlackElo "2285"]
[PlyCount "83"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 c5 6. Be2 cxd4 7. Nxd4 Nc6 8. Nc2 d6 9. 0-0 Nd7 10. Be3 Nc5 11. f3 a5 12. Qd2 a4 13. Rab1 Qa5 14. Rfd1 Be6 15. Nd5 Rfc8 16. Ncb4 Nxb4 17. Nxb4 Nd7 18. Nd5 Qxd2 19. Rxd2 Bxd5 20. Rxd5 Ne5 21. c5 dxc5 22. Rxc5 Rxc5 23. Bxc5 e6 24. Rd1 Rc8 25. Be3 h5 26. Rd2 a3 27. bxa3 Rc3 28. Kf2 Rxa3 29. f4 Ng4+ 30. Bxg4 hxg4 31. e5 Bf8 32. Rb2 Kg7 33. Rxb7 Rxa2+ 34. Kg3 Ra3 35. Kf2 g5 36. f5 exf5 37. e6 Ra2+ 38. Kf1 Ra1+ 39. Ke2 Ra2+ 40. Kf1 Ra1+ 41. Ke2 Ra2+ 42. Kf1 1/2-1/2

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.23"]
[Round "3"]
[White "Genov, Petar"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2476"]
[BlackElo "2140"]
[PlyCount "125"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 Bxd2+ 7. Nbxd2 d6 8. 0-0 0-0 9. e4 e5 10. d5 Nb8 11. Ne1 a5 12. Nd3 Na6 13. Qe2 Nd7 14. f4 Ndc5 15. f5 f6 16. Nf2 Bd7 17. Nb1 Rab8 18. Nc3 Rfd8 19. Rab1 Be8 20. b3 Kh8 21. a3 a4 22. b4 Nb3 23. Nd3 c6 24. dxc6 bxc6 25. Nb2 Qa7+ 26. Kh1 Nc7 27. Qf2 Nd4 28. Ne2 c5 29. b5 Na8 30. Nc3 Nb6 31. Nd5 Bf7 32. Ne3 Ra8 33. g4 Qe7 34. Rg1 Kg8 35. Bf1 Ra7 36. h4 Kf8 37. Bd3 Ke8 38. Nbd1 Kd7 39. Nc3 Kc8 40. g5 h6 41. gxh6 gxh6 42. Rg7 Qf8 43. Rbg1 Rad7 44. R7g3 Bh5 45. Ncd5 Nxd5 46. Nxd5 Kb7 47. Qe3 Qh8 48. R1g2 Rf8 49. Nc3 Qh7 50. Be2 Nxe2 51. Nxe2 Bxe2 52. Qxe2 Qf7 53. h5 d5 54. exd5 Kb6 55. Rg6 Qe7 56. Qe4 Rh8 57. Kh2 Ka5 58. Kh3 Kb6 59. R2g4 Ka5 60. Qe3 Kb6 61. Re4 Rd6 62. Qg3 Qa7 63. Rxe5 1-0

[Event "Groningen op-A"]
[Site "Groningen"]
[Date "2009.12.21"]
[Round "1"]
[White "Donker, Roel"]
[Black "Berkovich, Mark A"]
[Result "1-0"]
[ECO "E48"]
[WhiteElo "2140"]
[BlackElo "2406"]
[PlyCount "221"]
[EventDate "2009.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 134 Extra"]
[Source "ChessBase"]
[SourceDate "2010.03.03"]
[SourceVersion "1"]
[SourceVersionDate "2010.03.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 5. Bd3 e5 6. Nge2 d5 7. 0-0 dxc4 8. Bxc4 0-0 9. a3 Bd6 10. d5 Ne7 11. e4 Ng6 12. Ng3 a6 13. f3 b5 14. Bb3 Bc5+ 15. Kh1 Bd7 16. Nf5 Nh5 17. Be3 Bxe3 18. Nxe3 Qg5 19. Qd2 c5 20. dxc6 Bxc6 21. Rad1 Nhf4 22. g3 Ne6 23. Nf5 Rad8 24. Qxg5 Nxg5 25. h4 Rxd1 26. Bxd1 Ne6 27. h5 Re8 28. hxg6 hxg6 29. Ne3 Nd4 30. Ned5 Kf8 31. Kg2 f5 32. Rh1 Kf7 33. Ne2 Bxd5 34. exd5 Nxe2 35. Bxe2 Rc8 36. Bd3 Rc5 37. Rd1 Ke7 38. Bb1 Kd6 39. Kf2 b4 40. axb4 Rb5 41. Rd2 Rxb4 42. g4 fxg4 43. Bxg6 gxf3 44. Kxf3 Rb3+ 45. Ke2 a5 46. Bf7 g5 47. Be6 a4 48. Rc2 e4 49. Rc4 Rxb2+ 50. Ke3 a3 51. Kxe4 Re2+ 52. Kf3 a2 53. Rc6+ Ke5 54. Ra6 Rd2 55. Ke3 Rb2 56. Kf3 Rd2 57. Kg4 Rg2+ 58. Kh5 g4 59. Kh4 Kf4 60. Ra4+ Ke5 61. Ra6 Kd4 62. Ra4+ Ke5 63. Kg5 Rd2 64. Kh4 Rg2 65. Bxg4 Rd2 66. Ra6 Kxd5 67. Be6+ Ke5 68. Bxa2 Kf4 69. Ra4+ Ke5 70. Kg3 Rd3+ 71. Kf2 Rd4 72. Bc4 Kf4 73. Ke2 Ke5 74. Ra5+ Kd6 75. Bd3 Rd5 76. Ra6+ Kc5 77. Ke3 Rd8 78. Ra5+ Kb6 79. Re5 Rd6 80. Ke4 Kc6 81. Re7 Rd8 82. Bc2 Kd6 83. Ra7 Rc8 84. Bb3 Kc5 85. Rd7 Re8+ 86. Kd3 Re5 87. Bc4 Rg5 88. Kc3 Rg3+ 89. Bd3 Rg5 90. Rd4 Rg8 91. Rh4 Rg5 92. Ra4 Re5 93. Ra1 Re7 94. Ra5+ Kd6 95. Kd4 Re1 96. Ra6+ Kc7 97. Be4 Kd7 98. Rf6 Ke7 99. Rh6 Rd1+ 100. Ke5 Rd2 101. Bd5 Rd1 102. Re6+ Kf8 103. Kd6 Kg7 104. Ke5 Re1+ 105. Be4 Ra1 106. Re7+ Kf8 107. Rc7 Ra6 108. Bf5 Kg8 109. Be6+ Kh8 110. Kf6 Ra8 111. Kg6 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.13"]
[Round "9"]
[White "Donker, Roel"]
[Black "Stoffers, Jeffrey"]
[Result "1/2-1/2"]
[ECO "A52"]
[WhiteElo "1941"]
[BlackElo "1775"]
[PlyCount "67"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. e3 Ngxe5 6. Nxe5 Nxe5 7. Be2 Bd6 8. Nc3 b6 9. Qd5 Rb8 10. Ne4 Bb4+ 11. Bd2 Qe7 12. Bxb4 Qxb4+ 13. Qd2 Qxd2+ 14. Nxd2 Bb7 15. e4 0-0 16. 0-0 d6 17. Rad1 f5 18. exf5 Rxf5 19. f4 Ng6 20. g3 Re8 21. Bd3 Rf6 22. Nb1 Nf8 23. Nc3 Ne6 24. Rfe1 Kf7 25. Bc2 a5 26. a3 g5 27. f5 Nc5 28. Nb5 Rc8 29. Rd4 Nd7 30. g4 Ne5 31. Bd1 Bf3 32. Kf2 Bc6 33. Nc3 Re8 34. Nd5 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.12"]
[Round "7"]
[White "De Koning, Wouter"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1753"]
[BlackElo "1941"]
[PlyCount "48"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Bc4 e6 5. d3 Nge7 6. Nf3 d5 7. Bb3 Bg7 8. 0-0 0-0 9. Nh4 b5 10. Nxb5 c4 11. dxc4 dxe4 12. Qe1 f5 13. c3 Na5 14. Be3 Ba6 15. Rd1 Qb8 16. Bc5 Bf6 17. Nd4 Qc8 18. Bb4 Nxc4 19. Qg3 Rf7 20. Rf2 Rg7 21. Nc2 Nd5 22. Bxc4 Bxc4 23. b3 Bd3 24. Nf3 Bxc2 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.12"]
[Round "8"]
[White "Donker, Roel"]
[Black "Schenkeveld, Dick"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "1941"]
[BlackElo "1859"]
[PlyCount "92"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 c5 6. Qb3 cxd4 7. exd4 dxc4 8. Bxc4 0-0 9. Ne5 e6 10. Qd1 Nc6 11. Nxc6 bxc6 12. 0-0 Nd5 13. Nxd5 cxd5 14. Bb3 Ba6 15. Re1 Rc8 16. Be3 Qb6 17. Qd2 Rfd8 18. f4 Bc4 19. Bd1 Bf8 20. Qf2 Bd3 21. Bb3 Bc4 22. Bd1 Rb8 23. b3 Bd3 24. Bc2 Ba6 25. Bc1 Rbc8 26. Bb2 Bb4 27. Re3 Qa5 28. Rh3 Bc3 29. Rb1 Bxb2 30. Rxb2 Qa3 31. Rb1 Qxa2 32. Rc1 Qb2 33. Qd2 Rc7 34. f5 exf5 35. Qh6 Qxd4+ 36. Kh1 Qg7 37. Qd2 Rdc8 38. Re3 d4 39. Ree1 d3 40. Bxd3 Rxc1 41. Rxc1 Rxc1+ 42. Qxc1 Bxd3 43. Qc8+ Qf8 44. Qd7 Qc5 45. h3 Be4 46. Kh2 Qe5+ 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.11"]
[Round "6"]
[White "Donker, Roel"]
[Black "Akkerboom, Jacob"]
[Result "1/2-1/2"]
[ECO "A67"]
[WhiteElo "1941"]
[BlackElo "1785"]
[PlyCount "49"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 c5 2. d5 e6 3. c4 exd5 4. cxd5 d6 5. Nc3 Nf6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nbd7 9. e5 Nh5 10. e6 Qh4+ 11. g3 Nxg3 12. hxg3 Qxh1 13. Be3 fxe6 14. dxe6 Bxc3+ 15. bxc3 a6 16. Qxd6 axb5 17. Rd1 Qc6 18. exd7+ Bxd7 19. Qe5+ Kf7 20. Rd6 Rhe8 21. Qf6+ Kg8 22. Rxc6 Bxc6 23. f5 Rxe3+ 24. Kd2 Rf8 25. Qh4 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.10"]
[Round "5"]
[White "Cornelissen, Philip"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1799"]
[BlackElo "1941"]
[PlyCount "37"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. d4 cxd4 6. cxd4 d6 7. Bd3 Bg4 8. 0-0 dxe5 9. dxe5 Ndb4 10. Be4 Qxd1 11. Rxd1 Nxe5 12. Na3 Bxf3 13. gxf3 Nec6 14. Nb5 Rc8 15. Bf4 e5 16. Bf5 Rd8 17. Rxd8+ Kxd8 18. Rd1+ Ke7 19. Bg5+ 1-0

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.10"]
[Round "4"]
[White "Donker, Roel"]
[Black "Pandelaar, Vincent"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "1941"]
[BlackElo "1847"]
[PlyCount "91"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 f5 4. Bf4 c6 5. e3 Bd6 6. Bxd6 Qxd6 7. cxd5 exd5 8. Bd3 Nf6 9. Qc2 0-0 10. Nf3 Ne4 11. 0-0 Be6 12. Rab1 a5 13. a3 Na6 14. Bxa6 Rxa6 15. Ne5 f4 16. f3 Nxc3 17. Qxc3 fxe3 18. Qxe3 Bf5 19. Rbe1 Rb6 20. Rf2 a4 21. Rfe2 Rb3 22. Qd2 Qc7 23. Re3 Rxe3 24. Rxe3 Qb6 25. Qb4 Qxb4 26. axb4 Bc2 27. g3 Bb3 28. Nd7 Ra8 29. Nc5 b6 30. Nxb3 axb3 31. Rxb3 Ra1+ 32. Kf2 b5 33. h4 Rb1 34. Ke3 Kf7 35. Kf4 Ke6 36. Re3+ Kd6 37. Re2 Rd1 38. Ke3 g6 39. Rd2 Re1+ 40. Kf2 Rc1 41. Ke3 Rc4 42. Rd3 Rxb4 43. b3 c5 44. dxc5+ Kxc5 45. Rc3+ Kd6 46. Rd3 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.09"]
[Round "2"]
[White "Donker, Roel"]
[Black "Van Kerkhof, David"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1941"]
[BlackElo "2170"]
[PlyCount "88"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Be2 0-0 7. Nf3 Ne8 8. 0-0 g6 9. Ne1 Bg5 10. Nd3 Nd7 11. f4 exf4 12. Bxf4 Bxf4 13. Rxf4 Qe7 14. Qd2 Ne5 15. Nxe5 dxe5 16. Rf2 Nd6 17. Bd3 Bd7 18. Raf1 f5 19. g3 Rf7 20. a3 a5 21. b3 Raf8 22. Qe3 b6 23. Kh1 Re8 24. a4 Qf8 25. Nb5 Bxb5 26. axb5 Ree7 27. exf5 gxf5 28. Qg5+ Rg7 29. Qh5 e4 30. Bb1 Ref7 31. Qh6 Qe7 32. Qe3 Qe5 33. Rd2 Rg6 34. Bc2 a4 35. Bd1 Rgg7 36. Bh5 Ra7 37. Bd1 a3 38. Ra2 Ra8 39. Rff2 Qd4 40. Qe1 e3 41. Rf3 Re7 42. Bc2 e2 43. Bd3 Qb2 44. Bb1 Qxb1 0-1

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.09"]
[Round "3"]
[White "Verstraate, Bjorn"]
[Black "Donker, Roel"]
[Result "1/2-1/2"]
[ECO "B78"]
[WhiteElo "1677"]
[BlackElo "1941"]
[PlyCount "53"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Bc4 Nc6 9. Qd2 Bd7 10. 0-0-0 Rc8 11. Bb3 Ne5 12. h4 h5 13. Bh6 Nc4 14. Bxc4 Rxc4 15. Bxg7 Kxg7 16. Rdg1 b5 17. Ndxb5 Qb6 18. Na3 Rc5 19. Qd4 e5 20. Qd3 Rb8 21. Nd1 d5 22. exd5 Nxd5 23. g4 Nb4 24. Qxd7 Nxa2+ 25. Kb1 Nc3+ 26. Kc1 Rd8 27. Qxd8 1/2-1/2

[Event "Hengelo U20 op"]
[Site "Hengelo"]
[Date "2005.08.08"]
[Round "1"]
[White "Lambregts, Chris"]
[Black "Donker, Roel"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1491"]
[BlackElo "1941"]
[PlyCount "56"]
[EventDate "2005.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 107 Extra"]
[Source "ChessBase"]
[SourceDate "2005.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.09.01"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 c5 3. e3 Nc6 4. Nf3 Bg4 5. Be2 e6 6. Ne5 Bxe2 7. Qxe2 Nxe5 8. Bxe5 Qd7 9. Qg4 f6 10. Bb2 e5 11. Qxd7+ Kxd7 12. d4 cxd4 13. exd4 Rc8 14. Kd2 e4 15. Ba3 Nh6 16. Bxf8 Rhxf8 17. Nc3 Ke6 18. Rhe1 Rc6 19. Ne2 Kd6 20. Ng3 f5 21. Rac1 f4 22. Nf1 Nf5 23. c3 Rfc8 24. f3 Nxd4 25. fxe4 dxe4 26. h3 Nf5 27. Nh2 e3+ 28. Ke2 Ng3+ 0-1

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.05.03"]
[Round "9"]
[White "Donker, Roel"]
[Black "Boogaard, Sander"]
[Result "0-1"]
[ECO "D46"]
[PlyCount "54"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Be7 6. Bd3 0-0 7. 0-0 Nbd7 8. cxd5 exd5 9. Bd2 Re8 10. Qc2 Nf8 11. Rab1 Bd6 12. h3 Ng6 13. Rfc1 Bd7 14. b4 Qc8 15. b5 Bxh3 16. Bxg6 fxg6 17. gxh3 Qxh3 18. Qd1 Ng4 19. Qf1 Qxf3 20. Qg2 Rf8 21. Qxf3 Rxf3 22. Be1 Raf8 23. Rc2 Bh2+ 24. Kg2 h5 25. Nd1 h4 26. bxc6 h3+ 27. Kh1 Rg3 0-1

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.05.02"]
[Round "7"]
[White "Donker, Roel"]
[Black "Spork, Charlie"]
[Result "1/2-1/2"]
[ECO "A38"]
[PlyCount "98"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 d6 3. Bg2 Nf6 4. 0-0 Nc6 5. c4 g6 6. Nc3 Bg7 7. d3 0-0 8. Bg5 a6 9. Qd2 Re8 10. Rfe1 Rb8 11. Rab1 Be6 12. Bh6 Bh8 13. Ng5 Bd7 14. Qf4 e5 15. Qd2 Ng4 16. Nf3 f6 17. Be3 Nxe3 18. Qxe3 Bg7 19. Qd2 Be6 20. a3 Bf8 21. Red1 Qd7 22. Ne1 Kg7 23. Nc2 b5 24. Nd5 f5 25. Rf1 Be7 26. f4 bxc4 27. dxc4 e4 28. Qc3+ Kf7 29. Nce3 Nd4 30. Qd2 g5 31. Nxe7 Qxe7 32. Rf2 Rb3 33. Bh3 g4 34. Bf1 Bxc4 35. Nxc4 e3 36. Nxe3 Rxe3 37. Rd1 Nxe2+ 38. Bxe2 Rxe2 39. Rxe2 Qxe2 40. Qxe2 Rxe2 41. Rxd6 Rxb2 42. Rxa6 c4 43. Rc6 Rc2 44. a4 c3 45. a5 Rc1+ 46. Kg2 Ke7 47. a6 c2 48. a7 Ra1 49. Rxc2 Rxa7 1/2-1/2

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.05.02"]
[Round "8"]
[White "Provoost, Simon"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "31"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. Qg4 Nge7 8. Nf3 0-0 9. Bd3 Ng6 10. h4 Re8 11. h5 Nf8 12. Bg5 Ne7 13. Bf6 g6 14. Qg5 c4 15. Qh6 Nf5 16. Bxf5 1-0

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.05.01"]
[Round "6"]
[White "Donker, Roel"]
[Black "Bugel, Jeroen"]
[Result "0-1"]
[ECO "E65"]
[PlyCount "78"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 Nf6 4. 0-0 0-0 5. d4 d6 6. c4 Nbd7 7. Nc3 c5 8. Rb1 Rb8 9. e4 a6 10. dxc5 Nxc5 11. Nd4 Bd7 12. Be3 Ng4 13. Qd2 Nxe3 14. Qxe3 Ne6 15. Nxe6 Bxe6 16. Nd5 b5 17. c5 Re8 18. c6 Rc8 19. c7 Rxc7 20. Nxc7 Qxc7 21. b3 Qc2 22. a3 Qa2 23. b4 Rc8 24. Rfc1 Rxc1+ 25. Rxc1 Bb2 26. Rd1 Bxa3 27. Qc3 Bb2 28. Qc6 Bf6 29. f4 Qa4 30. Bf3 Qb3 31. Kg2 Qb2+ 32. Kh1 Bh3 33. e5 dxe5 34. fxe5 Qxe5 35. Qxa6 Qc3 36. Qa8+ Kg7 37. Qe4 Bf5 38. Qa8 Qxb4 39. Bd5 Qa4 0-1

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.30"]
[Round "4"]
[White "De Ruijsscher, Mitchell"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "75"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. b3 Nc6 3. Bb2 e6 4. Nf3 d5 5. exd5 exd5 6. d4 Be6 7. Nbd2 Nf6 8. Bb5 Be7 9. 0-0 0-0 10. Re1 h6 11. Bxc6 bxc6 12. Ne5 Qb6 13. a4 Rfe8 14. a5 Qc7 15. Ndf3 Rab8 16. Ba3 Ne4 17. dxc5 Bxc5 18. Bxc5 Nxc5 19. Nd4 Bd7 20. Qh5 Re7 21. Nxd7 Rxe1+ 22. Rxe1 Qxd7 23. Qe5 Rc8 24. Nf5 Ne6 25. Qg3 Kh8 26. h3 Qc7 27. Qc3 Kg8 28. a6 Rd8 29. b4 d4 30. Qc4 Rd5 31. Qd3 Qb6 32. Ne7+ Kf8 33. Nxd5 cxd5 34. b5 Nc7 35. Qf5 Qxb5 36. Qc8+ Ne8 37. Qb7 Nd6 38. Qe7+ 1-0

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.30"]
[Round "5"]
[White "Stoffers, Jeffrey"]
[Black "Donker, Roel"]
[Result "1-0"]
[ECO "B76"]
[PlyCount "59"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[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. 0-0-0 Bd7 10. g4 Rc8 11. h4 Nxd4 12. Bxd4 Be6 13. h5 Qa5 14. a3 Bc4 15. hxg6 fxg6 16. g5 Nh5 17. Bxg7 Nxg7 18. f4 Bxf1 19. Rdxf1 Rf7 20. Qh2 Nh5 21. Qh3 Rcf8 22. Nd5 Qa4 23. Qe6 Re8 24. Nc3 Qc6 25. f5 Ng7 26. Qb3 gxf5 27. exf5 Nxf5 28. Rxh7 Kxh7 29. Qxf7+ Ng7 30. Nd5 1-0

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.29"]
[Round "3"]
[White "Donker, Roel"]
[Black "Dijkstra, Maarten"]
[Result "0-1"]
[ECO "E94"]
[PlyCount "92"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 Nbd7 7. 0-0 e5 8. d5 Nc5 9. Qc2 a5 10. Be3 Ng4 11. Bxc5 dxc5 12. Nd2 Qh4 13. h3 Nh6 14. Nb5 Qe7 15. Rad1 f5 16. f3 f4 17. Rfe1 Bf6 18. Bf1 Bh4 19. Re2 Nf7 20. a3 Nd6 21. Nxd6 cxd6 22. b4 Qg5 23. Kh1 b6 24. bxc5 bxc5 25. Rb1 h5 26. Rb6 Qd8 27. Qb2 g5 28. Rc6 Ra6 29. Rxa6 Bxa6 30. Qc3 g4 31. Nb1 gxh3 32. gxh3 Bg3 33. Qc1 Qh4 34. Bg2 Kh8 35. Rb2 Be1 36. Re2 Bf2 37. Rb2 Rg8 38. Qf1 Bd4 39. Rc2 Bc8 40. Rc1 Bxh3 41. Bxh3 Rg1+ 42. Qxg1 Bxg1 43. Kxg1 Qxh3 44. Nd2 Qg3+ 45. Kf1 Qh2 46. Rc2 h4 0-1

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.29"]
[Round "2"]
[White "Van der Velden, Bram"]
[Black "Donker, Roel"]
[Result "1/2-1/2"]
[ECO "E84"]
[PlyCount "50"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. f3 0-0 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 9. g4 b5 10. Ng3 bxc4 11. Bxc4 e5 12. d5 Na5 13. Be2 c5 14. h4 Rb4 15. 0-0-0 Qb6 16. Rh2 Bd7 17. h5 Rb8 18. Bd3 Nc4 19. Bxc4 Rxc4 20. hxg6 fxg6 21. g5 Ne8 22. Rdh1 Qa5 23. a3 Rb3 24. Nge2 Nc7 25. Kd1 Nb5 1/2-1/2

[Event "NED-ch U16"]
[Site "Schagen"]
[Date "2003.04.28"]
[Round "1"]
[White "Donker, Roel"]
[Black "Van Kerkhof, David"]
[Result "0-1"]
[ECO "E94"]
[PlyCount "78"]
[EventDate "2003.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 Na6 7. 0-0 e5 8. d5 Nc5 9. Qc2 a5 10. Be3 b6 11. Nd2 Ng4 12. Bxg4 Bxg4 13. a3 Na6 14. Rfb1 Bd7 15. Qd1 f5 16. f3 f4 17. Bf2 g5 18. b4 h5 19. bxa5 bxa5 20. Nb3 g4 21. Nxa5 Qg5 22. Kf1 g3 23. Bg1 gxh2 24. Bxh2 Rf6 25. Qd2 Rg6 26. Ra2 h4 27. Nc6 h3 28. gxh3 Bxh3+ 29. Ke1 Kf7 30. Rbb2 Nc5 31. Nb4 Qh4+ 32. Qf2 Qh5 33. Qe2 Bg2 34. Bg1 Qh1 35. Qxg2 Rxg2 36. Rxg2 Bf6 37. Nb5 Rg8 38. Kf1 Nxe4 39. fxe4 Qh3 0-1

