[Event "Amsterdam Science Park op-A"]
[Site "Amsterdam"]
[Date "2023.07.15"]
[Round "1"]
[White "Hopman, Pieter"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2323"]
[BlackElo "2008"]
[PlyCount "85"]
[EventDate "2023.07.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 Nbd7 8. Qc2 Re8 9. Nge2 b6 10. 0-0 Bb7 11. f3 h6 12. Bh4 c5 13. Rad1 Nf8 14. Bf2 Bd6 15. Kh1 g6 16. Qb1 Qe7 17. Bh4 Kg7 18. e4 cxd4 19. Nxd4 Be5 20. Bb5 Rec8 21. exd5 Rc5 22. Nc6 Bxc6 23. Bxc6 Rd8 24. Ne4 g5 25. Bf2 Rc4 26. Ng3 Bxg3 27. Bxg3 Ng6 28. b3 Rf4 29. Rfe1 Qc5 30. Qb2 Qd6 31. a3 Ne7 32. Bxf4 gxf4 33. Rc1 Ng6 34. b4 h5 35. Rc4 h4 36. h3 Rh8 37. b5 Rh5 38. Qb4 Rxd5 39. Bxd5 Qxd5 40. Rd4 Qg5 41. Qb2 Kh6 42. Rd6 Nh5 43. Qh8# 1-0

[Event "Bayern-chI Bank Hofmann 20th"]
[Site "Bad Wiessee"]
[Date "2016.10.30"]
[Round "2"]
[White "Harmsen, Michiel"]
[Black "Ojas, Kulkarni"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2052"]
[BlackElo "2405"]
[PlyCount "80"]
[EventDate "2016.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 12. 0-0 a5 13. Bg5 a4 14. Qd3 b6 15. Ra1 Qe6 16. e5 Ba6 17. Qe4 Bxe2 18. Qxa8 Bxf1 19. Rxf1 f6 20. exf6 exf6 21. Bf4 Qc6 22. Qa7 Nd7 23. d5 Qxd5 24. Qxa4 Ra8 25. Qb4 Bf8 26. Qb1 Bc5 27. Rd1 Qf7 28. Qd3 Ra7 29. Be3 Ra3 30. Qb5 Rb3 31. Qc6 Bxe3 32. fxe3 Nf8 33. Rd6 Kg7 34. e4 Qa7 35. h3 Rb2 36. e5 b5+ 37. Kh1 Qf2 38. exf6+ Kh8 39. Ng5 Qf1+ 40. Kh2 Qf4+ 0-1

[Event "Bayern-chI Bank Hofmann 18th"]
[Site "Bad Wiessee"]
[Date "2014.10.27"]
[Round "4"]
[White "Donchenko, Anatoly G"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2356"]
[BlackElo "2029"]
[PlyCount "79"]
[EventDate "2014.10.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 Ne4 5. Nxe4 dxe4 6. Qg4 Qd4 7. Nf3 f5 8. exf6 Qxf6 9. Qxe4 Nc6 10. d4 Bb4+ 11. Kd1 e5 12. Bg5 Qf5 13. Qxf5 Bxf5 14. a3 h6 15. Bh4 e4 16. axb4 exf3 17. d5 Ne5 18. Kd2 0-0 19. Kc3 b5 20. b3 Be4 21. g4 Nxg4 22. Bg3 c6 23. dxc6 Bxc6 24. cxb5 Bb7 25. Bc4+ Kh7 26. Rhe1 Nf6 27. Re7 Ne4+ 28. Kc2 Nxg3 29. hxg3 Bc8 30. Raxa7 Rxa7 31. Rxa7 Bf5+ 32. Kc3 Kg6 33. Bd5 Rc8+ 34. Kd4 Rc2 35. Bxf3 Rxf2 36. Bd5 Rd2+ 37. Kc5 Rc2+ 38. Bc4 Kh5 39. Rxg7 Bd3 40. g4+ 1-0

[Event "Bayern-chI Bank Hofmann 18th"]
[Site "Bad Wiessee"]
[Date "2014.10.26"]
[Round "2"]
[White "Wagner, Dennis"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2490"]
[BlackElo "2029"]
[PlyCount "61"]
[EventDate "2014.10.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 0-0 8. Qc2 Nbd7 9. Nge2 Re8 10. 0-0 Nf8 11. f3 h6 12. Bh4 c5 13. Qd2 Be6 14. dxc5 Bxc5 15. Kh1 Ng6 16. Bxg6 fxg6 17. Bxf6 Qxf6 18. Nxd5 Qe5 19. Nec3 Rad8 20. e4 Bd4 21. f4 Bxc3 22. Qc2 Qd4 23. Rad1 Qc4 24. Nxc3 Bg4 25. Rc1 Rd4 26. Qf2 Red8 27. Nd5 Qd3 28. Qh4 Qxe4 29. Qxd8+ Kh7 30. Nf6+ gxf6 31. Rc7+ 1-0

[Event "Amsterdam Science Park op-A"]
[Site "Amsterdam"]
[Date "2014.07.05"]
[Round "1"]
[White "In't Veld, Daan"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2211"]
[BlackElo "2052"]
[PlyCount "45"]
[EventDate "2014.07.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 161 Extra"]
[Source "ChessBase"]
[SourceDate "2014.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2014.08.29"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 Bd7 7. dxc5 Bxc5 8. 0-0 a5 9. Nbd2 Nh6 10. Nb3 Ng4 11. Nxc5 Qxc5 12. Qe2 0-0 13. Bxh7+ Kxh7 14. Ng5+ Kg8 15. Qxg4 Nxe5 16. Qh5 Rfe8 17. Qh7+ Kf8 18. Qh8+ Ke7 19. Qxg7 d4 20. Ne4 Nf3+ 21. Kh1 Rg8 22. Qf6+ Ke8 23. Nxc5 1-0

[Event "Amsterdam Science Park op-A 3rd"]
[Site "Amsterdam"]
[Date "2013.07.12"]
[Round "7"]
[White "Vroombout, Enrico"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2180"]
[BlackElo "2061"]
[PlyCount "81"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Qb6 8. Na4 Qa5+ 9. c3 b6 10. Bd2 c4 11. b4 Qa6 12. g3 b5 13. Nb2 Qa3 14. Rb1 Qxa2 15. Bh3 g6 16. Qc1 Qa6 17. g4 h5 18. gxh5 Rxh5 19. Bg4 Rh8 20. h4 f5 21. Bh3 Be7 22. Ke2 Nf8 23. Bg2 Qb6 24. Ng5 Bb7 25. Bf3 Bxb4 26. h5 Kd7 27. Qg1 Ba3 28. hxg6 Rxh1 29. Bxh1 Nxg6 30. Nxe6 Nge7 31. Na4 Qa5 32. Nac5+ Bxc5 33. Nxc5+ Kc8 34. Qg7 Rb8 35. Bxd5 Qd8 36. Be6+ Kc7 37. d5 Bc8 38. d6+ Kb6 39. Be3 a6 40. dxe7 Nxe7 41. Bxc8 1-0

[Event "Amsterdam Science Park op-A 3rd"]
[Site "Amsterdam"]
[Date "2013.07.11"]
[Round "6"]
[White "Harmsen, Michiel"]
[Black "Brink, Barry"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2061"]
[BlackElo "2154"]
[PlyCount "62"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 d5 6. Bg2 0-0 7. Nf3 Qe7 8. 0-0 Rd8 9. Qc2 c5 10. cxd5 cxd4 11. dxe6 Bxe6 12. Nbd2 Nc6 13. Nb3 Rd5 14. Rfd1 Rc8 15. Qd2 Rcd8 16. Ng5 Re5 17. Nf3 Re4 18. Ng5 Bxb3 19. Nxe4 Nxe4 20. Bxe4 Bxd1 21. Bxc6 Bxe2 22. Bxb7 d3 23. Bc6 h6 24. b4 Qg5 25. f4 Qf6 26. Rc1 Rc8 27. b5 a6 28. Kf2 axb5 29. Qc3 Qd8 30. Ke3 Qb6+ 31. Qc5 Rxc6 0-1

[Event "Amsterdam Science Park op-A 3rd"]
[Site "Amsterdam"]
[Date "2013.07.10"]
[Round "5"]
[White "Harmsen, Michiel"]
[Black "Brookes, Christopher"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2061"]
[BlackElo "2139"]
[PlyCount "59"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 Na6 7. f4 Qe8 8. Nf3 h6 9. Bh4 Nh5 10. Qd2 f5 11. e5 c5 12. d5 Nxf4 13. Qxf4 g5 14. Bxg5 dxe5 15. Nxe5 Bxe5 16. Qxe5 hxg5 17. 0-0-0 e6 18. d6 Nb4 19. Bf3 Bd7 20. Qxc5 a5 21. Rhe1 Qg6 22. a3 g4 23. Bxb7 f4 24. Be4 Qh6 25. Bxa8 Rxa8 26. Re5 Qh7 27. Ne4 Na2+ 28. Kb1 Rc8 29. Qxa5 Bc6 30. Kxa2 1-0

[Event "Amsterdam Science Park op-A 3rd"]
[Site "Amsterdam"]
[Date "2013.07.06"]
[Round "1"]
[White "Lombaers, Peter"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "A12"]
[WhiteElo "2230"]
[BlackElo "2061"]
[PlyCount "71"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bf5 5. 0-0 e6 6. b3 Be7 7. Bb2 0-0 8. d3 Qb6 9. Nbd2 Rd8 10. Qc2 d4 11. Nh4 Bg4 12. Ndf3 c5 13. h3 Bh5 14. g4 Nxg4 15. hxg4 Bxg4 16. Nh2 f5 17. N4f3 Bh5 18. e3 Nc6 19. exd4 cxd4 20. Rfe1 Bd6 21. a3 e5 22. b4 Bxb4 23. axb4 Nxb4 24. Qb3 Nxd3 25. Qxd3 e4 26. Qa3 exf3 27. Nxf3 d3 28. Qc3 Rd7 29. Ne5 d2 30. Nxd7 dxe1Q+ 31. Rxe1 Qh6 32. Re7 Bf7 33. Ne5 Re8 34. Rxe8+ Bxe8 35. Bd5+ Kh8 36. Qb4 1-0

[Event "Bayern-chI Bank Hofmann 16th"]
[Site "Bad Wiessee"]
[Date "2012.10.28"]
[Round "2"]
[White "Chernyshov, Konstantin"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2532"]
[BlackElo "2048"]
[PlyCount "43"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nf3 Be7 5. c4 0-0 6. Nc3 c6 7. Bd3 Nbd7 8. 0-0 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. Rc1 a6 12. Ne4 Nxe4 13. Bxe4 Qb6 14. Ne5 Nxe5 15. Bxe5 Rfd8 16. Qg4 Bf8 17. Bf6 Rdc8 18. Rc5 g6 19. Rh5 Bg7 20. Bxg7 f5 21. Qg5 Rc7 22. Be5 1-0

[Event "Bayern-chI Bank Hofmann 15th"]
[Site "Bad Wiessee"]
[Date "2011.10.31"]
[Round "3"]
[White "Harmsen, Michiel"]
[Black "Smirnov, Artem"]
[Result "0-1"]
[ECO "A33"]
[WhiteElo "2063"]
[BlackElo "2444"]
[PlyCount "80"]
[EventDate "2011.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. Nc3 Bc5 7. Ndb5 0-0 8. Bg2 Qe7 9. 0-0 a6 10. Na3 h6 11. Nc2 d6 12. e4 Bd7 13. Qe2 Rac8 14. a3 Ne5 15. b3 b5 16. cxb5 axb5 17. Bb2 Rb8 18. Nd1 b4 19. a4 Bc6 20. Kh1 Qb7 21. f3 Qa7 22. Nde3 Bb7 23. Qd2 Ba6 24. Bxe5 dxe5 25. Rfd1 Rfd8 26. Qe1 Bd4 27. Rab1 Bc3 28. Qg1 Be2 29. Rxd8+ Rxd8 30. Nc4 Qc7 31. N2e3 Nd7 32. Qf2 Bd3 33. Rd1 Nc5 34. Qa2 Bxc4 35. bxc4 b3 36. Qb1 Rxd1+ 37. Nxd1 Qa5 38. Bf1 Bd4 39. Nb2 Qd2 40. Nd3 Qc2 0-1

[Event "Amsterdam Science Park op-A 1st"]
[Site "Amsterdam"]
[Date "2011.07.17"]
[Round "9"]
[White "Harmsen, Michiel"]
[Black "Brookes, Christopher"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2140"]
[BlackElo "2056"]
[PlyCount "118"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 0-0 8. Qd2 c5 9. Rc1 e6 10. Nf3 Qc7 11. h4 Nc6 12. Be2 cxd4 13. cxd4 Qa5 14. Qxa5 Nxa5 15. 0-0 Rd8 16. Rfd1 b6 17. Bd2 Bb7 18. Bxa5 bxa5 19. e5 Rac8 20. Rxc8 Rxc8 21. Ne1 Bd5 22. Bd3 Bf8 23. Bb1 a4 24. Nd3 Rc3 25. g3 Ra3 26. Rd2 a5 27. Nf4 Bh6 28. Rd3 Rxd3 29. Nxd3 Bd2 30. Kf1 Bc3 31. Ke2 Bxd4 32. f4 h5 33. Ne1 Bc4+ 34. Kf3 Kf8 35. Nd3 Bd5+ 36. Ke2 Ke7 37. Nc1 Kd8 38. Bc2 Bb2 39. Nd3 Ba3 40. Bb1 Kc7 41. Nf2 Kb6 42. Ne4 Be7 43. Nc3 Bc4+ 44. Kf3 Kc5 45. Nxa4+ Kb5 46. Nc3+ Kb4 47. Ne4 Ka3 48. Nd6 Bxa2 49. Bd3 Bd5+ 50. Ke3 a4 51. Bb5 Kb4 52. Bxa4 Kxa4 53. Nxf7 Bc6 54. Nh8 Be8 55. Kf3 Bf8 56. g4 Bg7 57. Nxg6 Bxg6 58. gxh5 Bxh5+ 59. Ke4 Bg6+ 0-1

[Event "Amsterdam Science Park op-A 1st"]
[Site "Amsterdam"]
[Date "2011.07.15"]
[Round "7"]
[White "Volkers, Annemarie"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2046"]
[BlackElo "2140"]
[PlyCount "163"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[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 Nxf6 10. Nf3 Bd6 11. 0-0 Qc7 12. Bg5 0-0 13. Rc1 Nh5 14. Ng3 Nf4 15. Bb5 Qb6 16. a4 a6 17. Bxc6 bxc6 18. Rc2 Bd7 19. Bxf4 Rxf4 20. Qd2 Raf8 21. Qe3 Qb4 22. Nh5 R4f5 23. Ng3 Rf4 24. Nh5 Qxa4 25. b3 Qb4 26. Nxf4 Bxf4 27. Qc3 Qb6 28. Re1 Rb8 29. Rb2 Bd6 30. Ne5 Be8 31. Qh3 Bxe5 32. Rxe5 Qxd4 33. Rbe2 Bf7 34. Rxe6 Rf8 35. Re7 Qa1+ 36. Re1 Qf6 37. Qg3 d4 38. h3 Bd5 39. Ra7 d3 40. Ree7 g6 41. Rg7+ Qxg7 42. Rxg7+ Kxg7 43. Qxd3 Rb8 44. b4 Kg8 45. Qxa6 Rxb4 46. Qc8+ Kg7 47. Qd7+ Kh6 48. Qe7 Rf4 49. Qe3 g5 50. Qe5 Kg6 51. f3 Rf6 52. Qe8+ Kg7 53. Kf2 h6 54. Kg3 Rf4 55. Kf2 Rf6 56. Qe5 Kg6 57. h4 Re6 58. h5+ Kf7 59. Qf5+ Kg7 60. Kg3 Rf6 61. Qd7+ Bf7 62. Qe7 Re6 63. Qc7 Rf6 64. Kf2 Kg8 65. Qd8+ Kg7 66. Qe7 Re6 67. Qd7 Rf6 68. g3 Kg8 69. Qd8+ Kg7 70. Qe7 Re6 71. Qc7 Rf6 72. f4 gxf4 73. gxf4 c5 74. Ke3 Rf5 75. Ke4 Rxh5 76. f5 c4 77. Qe7 Rg5 78. Ke5 Kg8 79. Kf6 Rg7 80. Qd8+ Kh7 81. Qf8 Rg5 82. Qxf7+ 1-0

[Event "Amsterdam Science Park op-A 1st"]
[Site "Amsterdam"]
[Date "2011.07.14"]
[Round "6"]
[White "Harmsen, Michiel"]
[Black "Smit, Frans P"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "2140"]
[BlackElo "2055"]
[PlyCount "124"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 c6 6. 0-0 Bd6 7. Qb3 0-0 8. Nc3 Nbd7 9. Nd2 Kh8 10. e3 Qe8 11. f4 Ne4 12. Nf3 b6 13. Ne5 Ba6 14. Qa4 Bxe5 15. Qxa6 Bd6 16. Nxe4 fxe4 17. Bd2 Qc8 18. Qxc8 Raxc8 19. Bh3 Rfe8 20. Rac1 Nf8 21. Rc2 Rcd8 22. cxd5 cxd5 23. a3 Kg8 24. Rfc1 Kf7 25. Bf1 Ng6 26. b4 Ne7 27. Ba6 h6 28. a4 Kf6 29. Bb7 Rb8 30. Ba6 Red8 31. Kf2 Kf7 32. h3 g6 33. Be2 Rbc8 34. Ba6 Rxc2 35. Rxc2 Rd7 36. Ke2 Rc7 37. Kd1 Rxc2 38. Kxc2 Kf6 39. g4 g5 40. fxg5+ hxg5 41. Kb3 Ng6 42. Be1 Bh2 43. a5 bxa5 44. bxa5 Bg1 45. Bd2 Nh4 46. Bf1 e5 47. dxe5+ Ke6 48. Kc2 Nf3 49. Kd1 Nxe5 50. a6 Kd6 51. Bb4+ Kc6 52. Kd2 Nf3+ 53. Ke2 Kb5 54. Be7 Kxa6 55. Bg2 d4 56. exd4 Nxd4+ 57. Kd1 Be3 58. Bxe4 Kb6 59. Bd3 Nc6 60. Bf6 Kc5 61. h4 gxh4 62. Bxh4 Bd4 1/2-1/2

[Event "Amsterdam Science Park op-A 1st"]
[Site "Amsterdam"]
[Date "2011.07.13"]
[Round "5"]
[White "Hendriks, Theo"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2053"]
[BlackElo "2140"]
[PlyCount "101"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[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 Nxf6 10. 0-0 Bd6 11. Nf3 Qc7 12. Nc3 a6 13. Bg5 0-0 14. Bh4 Nh5 15. Rc1 g6 16. Na4 Nf4 17. Bg3 Qa5 18. Bb1 Bd7 19. Nc5 Bxc5 20. dxc5 b6 21. cxb6 Qxb6 22. Qd2 Qb4 23. Rc3 d4 24. Bxf4 dxc3 25. Qxd7 Qxf4 26. Qxc6 cxb2 27. Qxe6+ Kg7 28. Qd7+ Rf7 29. Qd5 Raa7 30. Nd4 Qf6 31. Ne6+ Kh8 32. Nc5 Rac7 33. Ne4 Qg7 34. Qa8+ Rf8 35. Qxa6 Rc1 36. Qa3 Rfc8 37. Nd2 Qd4 38. Qe3 Qd5 39. Be4 Rxf1+ 40. Nxf1 Qc5 41. Qd2 Qc3 42. Qd6 Kg7 43. g3 Qc1 44. Qe7+ Kh6 45. Kg2 b1Q 46. Bxb1 Qxb1 47. Ne3 g5 48. Qe6+ Kg7 49. Nf5+ Kf8 50. Qe7+ Kg8 51. Qg7# 1-0

[Event "Amsterdam Science Park op-A 1st"]
[Site "Amsterdam"]
[Date "2011.07.12"]
[Round "4"]
[White "Harmsen, Michiel"]
[Black "Ritsema, Ronald JE"]
[Result "1-0"]
[ECO "E74"]
[WhiteElo "2140"]
[BlackElo "2103"]
[PlyCount "59"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 0-0 6. Be2 c5 7. d5 h6 8. Bf4 e6 9. dxe6 Bxe6 10. Bxd6 Re8 11. e5 Nfd7 12. f4 Nc6 13. Nf3 Qb6 14. 0-0 Nd4 15. Nxd4 cxd4 16. Na4 Qc6 17. b3 Rad8 18. Bf3 Qa6 19. c5 h5 20. Be4 Bg4 21. Qd2 Bf5 22. Bxf5 gxf5 23. Rfe1 Nf8 24. Qxd4 Ne6 25. Qe3 f6 26. Rad1 Qc6 27. Nc3 Kf7 28. b4 b5 29. Nd5 fxe5 30. fxe5 1-0

[Event "Amsterdam Science Park op-A 1st"]
[Site "Amsterdam"]
[Date "2011.07.11"]
[Round "3"]
[White "Harmsen, Michiel"]
[Black "White, Kevin"]
[Result "0-1"]
[ECO "E70"]
[WhiteElo "2140"]
[BlackElo "2104"]
[PlyCount "80"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Be2 c5 6. d5 Qa5 7. Bd2 d6 8. h3 e6 9. Nf3 exd5 10. exd5 Re8 11. 0-0 a6 12. a4 Qc7 13. Bd3 Nbd7 14. b3 Ne5 15. Bc2 Nh5 16. Nh2 f5 17. g4 fxg4 18. hxg4 Qe7 19. gxh5 Qh4 20. Be4 Ng4 21. Nxg4 Bxg4 22. Bf3 Be5 23. Re1 Qh2+ 24. Kf1 Bg3 25. Bg2 Bxd1 26. Raxd1 Rf8 27. Ne4 Be5 28. hxg6 hxg6 29. Bg5 Rae8 30. Rd3 Bd4 31. Rxd4 cxd4 32. Nf6+ Kf7 33. Rxe8 Rxe8 34. Nxe8 Kxe8 35. Bd2 Kf7 36. a5 Kf6 37. b4 Qh5 38. Ke1 Qg4 39. Bf1 Qe4+ 40. Kd1 Qb1+ 0-1

[Event "Amsterdam Science Park op-A 1st"]
[Site "Amsterdam"]
[Date "2011.07.10"]
[Round "2"]
[White "Afek, Yochanan"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2298"]
[BlackElo "2140"]
[PlyCount "43"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 Nh6 7. Bd3 Bd7 8. Bc2 cxd4 9. cxd4 g6 10. Nc3 Nf5 11. Na4 Qc7 12. Bxf5 gxf5 13. 0-0 Rc8 14. Be3 b5 15. Nc5 f4 16. Nxd7 Kxd7 17. Bxf4 Be7 18. Rc1 f5 19. exf6 Qxf4 20. fxe7 Rhg8 21. g3 h5 22. Rxc6 1-0

[Event "Amsterdam Science Park op-A 1st"]
[Site "Amsterdam"]
[Date "2011.07.09"]
[Round "1"]
[White "Tan, Matthew"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2400"]
[BlackElo "2140"]
[PlyCount "63"]
[EventDate "2011.07.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ngf3 Qb6 8. 0-0 cxd4 9. cxd4 Nxd4 10. Nxd4 Qxd4 11. Nf3 Qb6 12. Qa4 Qb4 13. Qc2 Nc5 14. Bd2 Qa4 15. b3 Qd7 16. Bxh7 g6 17. Ng5 Ne4 18. Nxe4 dxe4 19. Bg5 Be7 20. Rad1 Qxd1 21. Qxd1 Bxg5 22. Bxg6 fxg6 23. Qg4 Be7 24. Qxg6+ Kf8 25. Re1 Rg8 26. Qh6+ Ke8 27. Qh5+ Kd7 28. Rd1+ Kc6 29. Rc1+ Kd7 30. Qh7 Rf8 31. Rc7+ Kxc7 32. Qxe7+ 1-0

[Event "Bayern-chI Bank Hofmann 14th"]
[Site "Bad Wiessee"]
[Date "2010.10.30"]
[Round "1"]
[White "Sandipan, Chanda"]
[Black "Harmsen, Michiel"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2641"]
[PlyCount "27"]
[EventDate "2010.10.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 a6 5. Qc2 g6 6. Bd3 dxc4 7. Qxc4 Bg7 8. 0-0 0-0 9. Nbd2 Nbd7 10. b3 Nd5 11. Bb2 Qc7 12. Rac1 N7b6 13. Qc5 Nd7 14. Qxd5 1-0

[Event "Bayern-chI Bank Hofmann 13th"]
[Site "Bad Wiessee"]
[Date "2009.10.31"]
[Round "1"]
[White "Harmsen, Michiel"]
[Black "Krivoborodov, Egor"]
[Result "0-1"]
[ECO "D15"]
[BlackElo "2453"]
[PlyCount "44"]
[EventDate "2009.10.31"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. e3 b5 6. c5 Nbd7 7. b4 a5 8. Ne5 Nxe5 9. dxe5 Nd7 10. Bb2 axb4 11. Nxb5 cxb5 12. e6 fxe6 13. Bd3 Nf6 14. g4 Ne4 15. g5 Qc7 16. f4 Nc3 17. Qh5+ Kd8 18. Bxc3 bxc3 19. Bxb5 g6 20. Qe2 Qxc5 21. a4 Bg7 22. 0-0 Bd7 0-1

[Event "NED-chT 0607"]
[Site "Netherlands"]
[Date "2007.03.03"]
[Round "6.10"]
[White "Harmsen, Michiel"]
[Black "Bosboom, Manuel"]
[Result "0-1"]
[ECO "A42"]
[BlackElo "2390"]
[PlyCount "58"]
[EventDate "2006.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]
[WhiteTeam "Amstelveen"]
[BlackTeam "Homburg Apeldoorn"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nd7 5. Nf3 e5 6. dxe5 dxe5 7. Be2 Ngf6 8. Bg5 h6 9. Bxf6 Bxf6 10. b4 c6 11. 0-0 0-0 12. c5 Qe7 13. Qc2 Re8 14. Rfc1 Nf8 15. Bc4 Bg4 16. Nd2 Bg5 17. Re1 Rad8 18. Nf1 Ne6 19. Bxe6 Bxe6 20. Rad1 Rd4 21. Rxd4 exd4 22. Ne2 Rd8 23. Rd1 Qf6 24. a3 h5 25. Qd3 b5 26. Nxd4 Bc4 27. Qc3 Bxf1 28. Kxf1 Bf4 29. Ke2 Be5 0-1

[Event "NED-chT 0607"]
[Site "Netherlands"]
[Date "2006.11.11"]
[Round "3.10"]
[White "Douven, Rudy C"]
[Black "Harmsen, Michiel"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2399"]
[PlyCount "69"]
[EventDate "2006.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 115 Extra"]
[Source "ChessBase"]
[SourceDate "2007.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2007.01.10"]
[SourceQuality "1"]
[WhiteTeam "Hilversum HSG"]
[BlackTeam "Amstelveen"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 a6 5. Nf3 b5 6. b3 Bg4 7. Qc2 Bxf3 8. gxf3 e6 9. c5 Nbd7 10. f4 g6 11. Bd3 a5 12. Ne2 Nh5 13. Ng1 f5 14. Nf3 Be7 15. Bd2 0-0 16. a4 b4 17. 0-0-0 Kh8 18. Rdg1 Qe8 19. Be2 Rg8 20. h4 Ndf6 21. Ne5 Rc8 22. Kb1 Bd8 23. f3 Ng7 24. Rg2 Nfh5 25. Bd3 Rf8 26. Bc1 Bf6 27. Qf2 Rc7 28. Bc2 Qd8 29. Nd3 Ne8 30. Rgg1 Bg7 31. Re1 Nef6 32. Rhg1 Bh6 33. Ne5 Nd7 34. Bd2 Qe8 35. Qe2 1/2-1/2

[Event "NED-chT 0607"]
[Site "Netherlands"]
[Date "2006.10.14"]
[Round "2.8"]
[White "Harmsen, Michiel"]
[Black "Riemens, Michael"]
[Result "1/2-1/2"]
[ECO "E73"]
[BlackElo "2257"]
[PlyCount "51"]
[EventDate "2006.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 115 Extra"]
[Source "ChessBase"]
[SourceDate "2007.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2007.01.10"]
[SourceQuality "1"]
[WhiteTeam "Amstelveen"]
[BlackTeam "Groningen Share"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Be2 d6 6. Bg5 Nbd7 7. Qd2 c6 8. Nf3 e5 9. d5 Nc5 10. Bxf6 Bxf6 11. b4 Nd7 12. dxc6 bxc6 13. 0-0 Be7 14. Rfd1 Bb7 15. Rab1 f5 16. Qc2 Kh8 17. c5 fxe4 18. cxd6 exf3 19. dxe7 Qxe7 20. Bxf3 Nf6 21. b5 e4 22. Bxe4 Nxe4 23. Nxe4 cxb5 24. Qc3+ Kg8 25. Qb3+ Kh8 26. Qc3+ 1/2-1/2

