[Event "Groningen op-B 57th"]
[Site "Groningen"]
[Date "2019.12.27"]
[Round "6"]
[White "Bosker, Peter"]
[Black "Ritter, Uwe"]
[Result "0-1"]
[ECO "A61"]
[WhiteElo "2075"]
[BlackElo "1981"]
[PlyCount "90"]
[EventDate "2019.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Nbd7 8. Nc4 Nb6 9. Ne3 Bg7 10. a4 Ng4 11. a5 Nxe3 12. Bxe3 Nd7 13. Bf4 Ne5 14. e4 a6 15. Be2 0-0 16. 0-0 Rb8 17. Bg3 h5 18. h3 Qg5 19. Qc1 Qxc1 20. Rfxc1 f5 21. f4 Nf7 22. Bd3 Bd4+ 23. Bf2 Bxf2+ 24. Kxf2 fxe4 25. Bxe4 Ne5 26. Kg3 h4+ 27. Kxh4 Rxf4+ 28. Kg5 Rf2 29. Rc2 Rxc2 30. Bxc2 Kg7 31. Re1 Bd7 32. Rxe5 dxe5 33. Bxg6 Rf8 34. Ne4 c4 35. h4 Rf4 36. Kh5 Bf5 37. Bxf5 Rxf5+ 38. Ng5 e4 39. Kg4 Rxd5 40. Nxe4 Rxa5 41. Nd6 Rd5 42. Ne4 b5 43. Kf4 b4 44. g4 c3 45. bxc3 b3 0-1

[Event "Groningen op-B 57th"]
[Site "Groningen"]
[Date "2019.12.26"]
[Round "5"]
[White "Novotny, David"]
[Black "Bosker, Peter"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "1810"]
[BlackElo "2075"]
[PlyCount "75"]
[EventDate "2019.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 g6 3. e4 d6 4. Bf4 Bg7 5. Qd2 0-0 6. Nf3 Bg4 7. 0-0-0 Nc6 8. Qe3 Bxf3 9. gxf3 Qc8 10. Bh6 e5 11. Bxg7 Kxg7 12. d5 Ne7 13. h4 Nh5 14. Bh3 Qe8 15. Ne2 f5 16. f4 exf4 17. Qc3+ Kh6 18. Nd4 c5 19. Ne6 Qa4 20. Nxf8 Rxf8 21. e5 Qe4 22. Rhe1 Nxd5 23. Qb3 Ne3 24. fxe3 f3 25. exd6 Qxh4 26. Bf1 Ng3 27. Qxb7 f2 28. Re2 Qa4 29. Rxf2 Qxa2 30. Rh2+ Kg5 31. Qe7+ Rf6 32. Rg2 Qa1+ 33. Kd2 Qxb2 34. Rxg3+ Kh4 35. Rh3+ Kg4 36. Be2+ Kxh3 37. Qxh7+ Kg2 38. Qh1+ 1-0

[Event "Groningen op-B 57th"]
[Site "Groningen"]
[Date "2019.12.24"]
[Round "4"]
[White "Bosker, Peter"]
[Black "Konnen, Timo"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2075"]
[BlackElo "1843"]
[PlyCount "43"]
[EventDate "2019.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. c4 Bb7 5. b3 bxc4 6. bxc4 Ne4 7. Qc2 Qa5+ 8. Nbd2 f5 9. Bb2 e6 10. Qb3 Nxd2 11. Nxd2 Qb6 12. g3 Na6 13. Bg2 Rb8 14. 0-0 Nc7 15. dxe6 Nxe6 16. Qxb6 axb6 17. Bh3 Rg8 18. Bxf5 g6 19. Be4 Ba6 20. Bd5 Be7 21. Rfb1 Rf8 22. Bxe6 1-0

[Event "Groningen op-B 57th"]
[Site "Groningen"]
[Date "2019.12.23"]
[Round "3"]
[White "Kunnen, Ruurd"]
[Black "Bosker, Peter"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "1846"]
[BlackElo "2075"]
[PlyCount "37"]
[EventDate "2019.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Bd6 7. d4 0-0 8. 0-0 Qe7 9. Ne5 Rd8 10. Qc2 Nf8 11. Nd2 Ng6 12. e4 dxe4 13. Nxe4 Nxe4 14. Qxe4 Nxe5 15. dxe5 Bc5 16. Rad1 Bd7 17. Rd3 Be8 18. Rfd1 Rxd3 19. Qxd3 1/2-1/2

[Event "Groningen op-B 57th"]
[Site "Groningen"]
[Date "2019.12.22"]
[Round "2"]
[White "Bosker, Peter"]
[Black "Klein, Jorik"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2075"]
[BlackElo "1859"]
[PlyCount "129"]
[EventDate "2019.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 axb4 11. Bxb4 Re8 12. c5 dxc5 13. Bxc5 c6 14. dxc6 Nxc6 15. Qxd8 Rxd8 16. Bc4 h6 17. h3 Nd7 18. Be3 Nf8 19. Rab1 Ne6 20. Nd5 Ra4 21. Nb6 Rb4 22. a3 Rxb1 23. Rxb1 Na5 24. Bd5 Nc7 25. Ba2 Be6 26. Nd5 Ne8 27. Rb5 Nc6 28. Rxb7 Nd6 29. Rc7 Nxe4 30. Ne7+ Nxe7 31. Bxe6 Re8 32. Bc4 Nd6 33. Bf1 Nd5 34. Ra7 Nxe3 35. fxe3 e4 36. Nd2 Nf5 37. Bc4 Nd6 38. Bd5 Re5 39. Ba2 Bf8 40. a4 Be7 41. Nc4 Nxc4 42. Bxc4 Rc5 43. Bd5 Rxd5 44. Rxe7 f5 45. Ra7 Rd2 46. a5 Ra2 47. a6 g5 48. g3 Kf8 49. Kf1 Ke8 50. Ke1 Kd8 51. h4 gxh4 52. gxh4 Kc8 53. Rf7 Rxa6 54. Rxf5 Rg6 55. Kd2 Rd6+ 56. Ke2 Kd7 57. Rf4 Re6 58. Kf2 Kd6 59. Kg3 Ke5 60. h5 Re7 61. Rf8 Rg7+ 62. Kh4 Rg1 63. Re8+ Kf5 64. Rf8+ Ke5 65. Re8+ 1/2-1/2

[Event "Groningen op-B 57th"]
[Site "Groningen"]
[Date "2019.12.21"]
[Round "1"]
[White "Blok, Ronald A"]
[Black "Bosker, Peter"]
[Result "0-1"]
[ECO "E72"]
[WhiteElo "1814"]
[BlackElo "2075"]
[PlyCount "100"]
[EventDate "2019.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. g3 0-0 6. Bg2 d6 7. e4 e6 8. Nge2 exd5 9. exd5 Nbd7 10. Bf4 Ne8 11. 0-0 Ne5 12. Bxe5 Bxe5 13. h3 f5 14. f4 Bg7 15. Qd3 a6 16. Rae1 Rb8 17. a4 Bd7 18. Kh2 Nc7 19. Rf3 b5 20. axb5 axb5 21. b3 bxc4 22. bxc4 Rb3 23. Rb1 Qb8 24. Rxb3 Qxb3 25. Nd1 Qb4 26. Bf1 Ba4 27. Nec3 Bb3 28. Re3 Bd4 29. Re7 Rf7 30. Rxf7 Kxf7 31. g4 fxg4 32. hxg4 Bxd1 33. Nxd1 Qe1 34. Qe2 Qh4+ 35. Bh3 g5 36. Ne3 gxf4 37. Nf5 Qf6 38. g5 Qe5 39. Qh5+ Kf8 40. Nxd4 cxd4 41. Qxh7 Qxg5 42. Qf5+ Qxf5 43. Bxf5 Ke7 44. Kg2 Kf6 45. Bc8 Ke5 46. Kf3 d3 47. Bb7 Ne8 48. Bc8 Ng7 49. Bh3 Nf5 50. Bf1 Nd4+ 0-1

[Event "NED-chT 1617"]
[Site "Netherlands"]
[Date "2017.04.01"]
[Round "8.9"]
[White "Bosker, Peter"]
[Black "Broekmeulen, Joris"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "2120"]
[BlackElo "2182"]
[PlyCount "123"]
[EventDate "2016.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Calder HMC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nf3 c6 3. c4 e6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 Bd6 7. 0-0 0-0 8. e4 dxc4 9. Bxc4 e5 10. Bg5 Qe7 11. Bb3 Rd8 12. Qe2 exd4 13. Nxd4 Nc5 14. Bc2 Bg4 15. Qxg4 Nxg4 16. Bxe7 Bxe7 17. Rad1 Bf6 18. Nb3 Ne6 19. Rxd8+ Rxd8 20. Rd1 Nd4 21. Na1 Ne5 22. Bb3 g5 23. Kf1 b5 24. Ne2 Nxb3 25. Rxd8+ Bxd8 26. Nxb3 Bb6 27. Nbd4 a6 28. f3 c5 29. Nf5 Nd3 30. b3 Ba5 31. Nd6 Kf8 32. g3 Ke7 33. Nf5+ Kf6 34. Ne3 Ke5 35. Ng4+ Ke6 36. Ne3 h5 37. f4 f6 38. Nf5 Kf7 39. Ne3 Bd2 40. Nd5 a5 41. fxg5 fxg5 42. Ndc3 Bxc3 43. Nxc3 b4 44. Na4 Kf6 45. Ke2 Nc1+ 46. Kd2 Nxa2 47. Nxc5 Nc3 48. Kd3 Ke5 49. Nd7+ Ke6 50. Nb6 g4 51. Nc4 a4 52. bxa4 Nxa4 53. Ke3 b3 54. Kf4 Kf6 55. e5+ Kg6 56. e6 Kf6 57. e7 Kxe7 58. Kg5 b2 59. Nxb2 Nxb2 60. Kxh5 Kf6 61. Kxg4 Kg6 62. h4 1/2-1/2

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2014.04.12"]
[Round "8.10"]
[White "Bosker, Peter"]
[Black "Mollema, Thomas"]
[Result "0-1"]
[ECO "A87"]
[WhiteElo "2163"]
[BlackElo "2033"]
[PlyCount "48"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Calder HMC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. c4 d6 7. Nc3 Qe8 8. e4 Nxe4 9. Nxe4 fxe4 10. Ng5 Nc6 11. Be3 e5 12. dxe5 Nxe5 13. Bxe4 h6 14. Bd5+ Kh8 15. Ne4 Bg4 16. Qc1 Nf3+ 17. Kg2 c6 18. Nxd6 Qe5 19. Bf4 Qh5 20. h4 cxd5 21. Rh1 Nd4 22. Re1 Bf3+ 23. Kf1 Be2+ 24. Kg1 Nf3+ 0-1

[Event "Groningen op-A 50th"]
[Site "Groningen"]
[Date "2012.12.29"]
[Round "8"]
[White "Van Assendelft, Floris"]
[Black "Bosker, Peter"]
[Result "1-0"]
[ECO "B46"]
[WhiteElo "2403"]
[BlackElo "2170"]
[PlyCount "75"]
[EventDate "2012.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nc6 7. Nxc6 bxc6 8. 0-0 Nf6 9. Qe1 e5 10. f4 d6 11. Kh1 Be7 12. fxe5 dxe5 13. Qh4 Rb8 14. Nd1 a5 15. Bg5 Be6 16. b3 a4 17. Ne3 Ng8 18. Nf5 Bxf5 19. exf5 axb3 20. axb3 Nf6 21. Rae1 h6 22. Rf3 Kd7 23. Bc1 Nd5 24. Qh5 Rhf8 25. Bc4 Ra8 26. Bb2 Bf6 27. Rd1 Ra2 28. Bxd5 cxd5 29. Rxd5+ Ke7 30. Rc3 Qb6 31. Rcd3 Rxb2 32. Rd7+ Ke8 33. Qd1 Ra2 34. R3d6 Qb8 35. h3 Ra7 36. Qd5 Ra1+ 37. Kh2 Ra7 38. Re6+ 1-0

[Event "Groningen op-A 50th"]
[Site "Groningen"]
[Date "2012.12.28"]
[Round "7"]
[White "Wallace, John Paul"]
[Black "Bosker, Peter"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2398"]
[BlackElo "2170"]
[PlyCount "49"]
[EventDate "2012.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 d6 6. e4 Bxa6 7. Bxa6 Rxa6 8. Nc3 g6 9. Nf3 Nbd7 10. Qe2 Qb6 11. 0-0 Bg7 12. e5 dxe5 13. Nxe5 Nxe5 14. Qxe5 0-0 15. Qe2 Rb8 16. Bf4 Rb7 17. Rac1 Ra8 18. b3 Rc8 19. Rfd1 Ne8 20. Na4 Qb5 21. Qxb5 Rxb5 22. Be3 c4 23. bxc4 Rb4 24. Nb6 Rb8 25. c5 1-0

[Event "Groningen op-A 50th"]
[Site "Groningen"]
[Date "2012.12.27"]
[Round "6"]
[White "Bosker, Peter"]
[Black "Pacher, Milan"]
[Result "1/2-1/2"]
[ECO "D86"]
[WhiteElo "2170"]
[BlackElo "2436"]
[PlyCount "80"]
[EventDate "2012.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Be3 Nc6 9. h4 e5 10. Ne2 exd4 11. cxd4 Qe7 12. Qc2 Nb4 13. Qd2 c5 14. f3 cxd4 15. Bg5 Qd6 16. Bf4 Qb6 17. Rb1 a5 18. a3 d3 19. axb4 dxe2 20. Be3 Qc7 21. Qxe2 axb4 22. 0-0 Ra3 23. Bd5 Be6 24. Bxe6 fxe6 25. h5 gxh5 26. Rxb4 Qc3 27. Bd2 Qc5+ 28. Qf2 Qxf2+ 29. Rxf2 Rd8 30. Bg5 Rd1+ 31. Kh2 Be5+ 32. g3 Raa1 33. f4 Bd4 34. Rc2 b6 35. Rc8+ Kf7 36. Rc7+ Kg6 37. Rc2 Bc5 38. Rbb2 h4 39. Bxh4 Kh5 40. Kh3 Rh1+ 1/2-1/2

[Event "Groningen op-A 50th"]
[Site "Groningen"]
[Date "2012.12.26"]
[Round "5"]
[White "Baghdasaryan, Vahe"]
[Black "Bosker, Peter"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "2388"]
[BlackElo "2170"]
[PlyCount "194"]
[EventDate "2012.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nc6 7. Nxc6 bxc6 8. c4 Nf6 9. Nc3 d6 10. f4 Be7 11. Kh1 Bb7 12. b4 0-0 13. Bb2 Rfd8 14. Qf3 c5 15. bxc5 Qxc5 16. Qh3 Qh5 17. Qg3 Qg4 18. Qe1 Qh5 19. f5 Ng4 20. h3 Ne5 21. Be2 Qh4 22. Qb1 Rab8 23. Kh2 g5 24. f6 Bf8 25. Qc2 Rbc8 26. Bc1 g4 27. Bd2 g3+ 28. Kh1 Bh6 29. Qc1 Bxd2 30. Qxd2 Bxe4 31. Nxe4 Qxe4 32. Rf4 Qg6 33. Raf1 Kh8 34. Rh4 Rb8 35. Qe3 Rb1 36. Rh6 Rxf1+ 37. Bxf1 Qf5 38. Kg1 Rg8 39. c5 dxc5 40. Rh4 Qg5 41. Qxg5 Rxg5 42. Ra4 Nd7 43. Rxa6 Nxf6 44. a4 Re5 45. Rc6 Ne4 46. Rc8+ Kg7 47. Rd8 Rd5 48. Rxd5 exd5 49. a5 Nd6 50. a6 Nc8 51. Bd3 c4 52. Bf5 Na7 53. Kf1 h6 54. Ke2 Kf6 55. Bb1 Ke5 56. Kf3 d4 57. Ba2 Kd5 58. Kxg3 d3 59. Kf2 Kd4 60. Ke1 f6 61. Kd1 c3 62. Bf7 Ke3 63. Be8 f5 64. g3 c2+ 65. Kc1 Ke2 66. Bh5+ Ke1 67. Bf3 Kf2 68. Bh5 Kxg3 69. Bg6 Kf4 70. Kd2 Ke4 71. h4 Kf4 72. Bf7 Ke5 73. Bg6 Nc6 74. Be8 Nb4 75. a7 Na2 76. a8Q c1Q+ 77. Kxd3 Nb4+ 78. Ke2 Qc4+ 79. Ke1 Qxh4+ 80. Kf1 Qf4+ 81. Kg1 Qc1+ 82. Kh2 Qd2+ 83. Kg1 Qe3+ 84. Kh2 Qf2+ 85. Kh1 Nd5 86. Bc6 Qh4+ 87. Kg1 Qd4+ 88. Kh1 Qh4+ 89. Kg1 Qg3+ 90. Kh1 Qh3+ 91. Kg1 Qe3+ 92. Kh1 Qc1+ 93. Kh2 Qc2+ 94. Kh1 Qd1+ 95. Kh2 Qd2+ 96. Kh1 Qe1+ 97. Kh2 Qh4+ 1/2-1/2

[Event "Groningen op-A 50th"]
[Site "Groningen"]
[Date "2012.12.24"]
[Round "4"]
[White "Bosker, Peter"]
[Black "Mammadova, Gulnar Marfat Qizi"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2170"]
[BlackElo "2363"]
[PlyCount "105"]
[EventDate "2012.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Ne2 Nf6 6. 0-0 c6 7. Bf4 0-0 8. c3 Re8 9. Bxd6 Qxd6 10. Qd2 Nbd7 11. Qf4 Qxf4 12. Nxf4 Nb6 13. Na3 Na4 14. Rab1 g5 15. Ne2 Bf5 16. Bxf5 Rxe2 17. Bc2 b5 18. Bxa4 bxa4 19. Rfe1 Rd2 20. Red1 Re2 21. Re1 Rd2 22. Red1 Rxd1+ 23. Rxd1 Rb8 24. Rd2 Ne4 25. Rc2 Nd6 26. f3 Kg7 27. Kf2 h5 28. Ke3 Re8+ 29. Kf2 a6 30. Re2 Rb8 31. Ke3 Kf6 32. Kd3 g4 33. c4 gxf3 34. gxf3 h4 35. Kc3 Nf5 36. cxd5 cxd5 37. Nc2 a5 38. Ne3 Nxe3 39. Rxe3 Rc8+ 40. Kd3 Rc1 41. Re5 Rh1 42. Rxd5 Rxh2 43. Rxa5 Rxb2 44. Rxa4 h3 45. d5 h2 46. Rh4 Rxa2 47. Rh5 Kg6 48. Rh3 Kf5 49. Ke3 Ke5 50. Rh5+ f5 51. d6 Ra3+ 52. Kf2 Kxd6 53. Kg3 1/2-1/2

[Event "Groningen op-A 50th"]
[Site "Groningen"]
[Date "2012.12.23"]
[Round "3"]
[White "De Jong, Migchiel"]
[Black "Bosker, Peter"]
[Result "0-1"]
[ECO "B66"]
[WhiteElo "2372"]
[BlackElo "2170"]
[PlyCount "96"]
[EventDate "2012.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Qc7 9. f4 Be7 10. Bxf6 Bxf6 11. Nxc6 Qxc6 12. Qxd6 Qxd6 13. Rxd6 Bxc3 14. bxc3 Bd7 15. Be2 Bc6 16. Bf3 Rd8 17. Rhd1 Rxd6 18. Rxd6 Ke7 19. Rd4 f6 20. e5 Bxf3 21. gxf3 Rc8 22. Rb4 Rc7 23. Rb6 Kf7 24. Kd2 Kg6 25. Rxe6 Kf5 26. Re8 Kxf4 27. e6 Ke5 28. Kd3 Kd6 29. f4 g6 30. Kd4 b5 31. e7 Rc4+ 32. Kd3 Rxf4 33. Ra8 Kxe7 34. Rxa6 Rh4 35. Rb6 Rh3+ 36. Kd4 Rxh2 37. Rxb5 Rxc2 38. a4 h5 39. a5 Ra2 40. Kc5 h4 41. Kb6 h3 42. Rb1 h2 43. Re1+ Kd6 44. Rd1+ Ke5 45. c4 g5 46. c5 g4 47. c6 g3 48. c7 Rc2 0-1

[Event "Groningen op-A 50th"]
[Site "Groningen"]
[Date "2012.12.22"]
[Round "2"]
[White "Bosker, Peter"]
[Black "Gieben, Stijn"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2170"]
[BlackElo "2048"]
[PlyCount "77"]
[EventDate "2012.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Rc1 g6 9. Bd3 dxc4 10. Bxc4 Bg7 11. 0-0 0-0 12. b4 e5 13. d5 Nb6 14. Ne4 Qd8 15. dxc6 bxc6 16. Bb3 Ba6 17. Re1 Nd5 18. Rxc6 Nxb4 19. Rd6 Qa5 20. Rxg6 Nd3 21. Rf1 Nb2 22. Qd6 Qb6 23. Qxf8+ Kxf8 24. Rxb6 axb6 25. Rc1 Rd8 26. h3 Rd7 27. Ng3 Bb7 28. Nf5 Nd3 29. Rd1 Bxf3 30. gxf3 Nc5 31. Rxd7 Nxd7 32. Kg2 Nc5 33. Bc2 h5 34. Kg3 Bf6 35. f4 e4 36. Bd1 h4+ 37. Nxh4 Nd3 38. Nf5 Ne1 39. Nd6 1-0

[Event "Groningen op-A 50th"]
[Site "Groningen"]
[Date "2012.12.21"]
[Round "1"]
[White "Gormally, Daniel"]
[Black "Bosker, Peter"]
[Result "1-0"]
[ECO "E57"]
[WhiteElo "2495"]
[BlackElo "2170"]
[PlyCount "57"]
[EventDate "2012.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 152 Extra"]
[Source "ChessBase"]
[SourceDate "2013.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2013.02.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be3 cxd4 7. cxd4 Nc6 8. Nc3 Qd8 9. Bc4 Be7 10. 0-0 0-0 11. a3 b6 12. Qd3 Bb7 13. Ba2 Nb8 14. Rfd1 Nbd7 15. d5 exd5 16. Qf5 Nc5 17. b4 Ne6 18. Nxd5 Nxd5 19. Bxd5 Bxd5 20. Rxd5 Qc8 21. Ne5 g6 22. Qd3 Ng7 23. Rc1 Qe6 24. Rc6 Qf5 25. Nxg6 hxg6 26. Rxf5 Nxf5 27. Qb3 Kg7 28. g4 Nxe3 29. fxe3 1-0

[Event "Groningen SO ON op A"]
[Site "Groningen"]
[Date "2001.??.??"]
[Round "8.9"]
[White "Bosker, Peter"]
[Black "Jelic, Bruno"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "1989"]
[BlackElo "1987"]
[PlyCount "71"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 Nh5 10. Re1 Nf4 11. Bf1 f5 12. c5 fxe4 13. Nxe4 Bg4 14. Neg5 h6 15. h3 Bf5 16. Bxf4 exf4 17. Ne6 Bxe6 18. Rxe6 dxc5 19. d6 cxd6 20. Rxd6 Qc8 21. Rc1 b6 22. Bc4+ Kh7 23. Be6 Qe8 24. bxc5 bxc5 25. Rxc5 Nc8 26. Rdc6 Nb6 27. Bb3 Rd8 28. Qc2 Nd7 29. Re6 Qf7 30. Rcc6 Nb8 31. Rxg6 Qf5 32. Qxf5 Rxf5 33. Rce6 Rc5 34. Rg4 Nd7 35. Re7 Rc1+ 36. Kh2 1-0

[Event "Groningen SO ON op A"]
[Site "Groningen"]
[Date "2001.??.??"]
[Round "1.2"]
[White "Hoeksema, Hendrik Pieter"]
[Black "Bosker, Peter"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2360"]
[BlackElo "1989"]
[PlyCount "57"]
[EventDate "2001.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. e3 Be7 8. Bb5+ c6 9. Bd3 0-0 10. e4 Nxc3 11. bxc3 c5 12. 0-0 cxd4 13. cxd4 Ba6 14. Bxa6 Nxa6 15. Qe2 Qc8 16. Bb2 Qb7 17. Rad1 Bf6 18. Rfe1 Rfd8 19. e5 Be7 20. d5 exd5 21. e6 f6 22. Nd4 g6 23. Qg4 Rac8 24. Nf5 Rc4 25. Bd4 Nc5 26. Nh6+ Kf8 27. Qh3 Rc8 28. Ng4 Rxd4 29. Qxh7 1-0

[Event "Groningen SO ON op-A"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "1"]
[White "Bosker, Peter"]
[Black "Vink, Nico"]
[Result "0-1"]
[ECO "E21"]
[BlackElo "2296"]
[PlyCount "44"]
[EventDate "2000.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nf3 b6 6. Bd3 Bb7 7. Bd2 d6 8. 0-0 Nbd7 9. a3 Bxc3 10. Bxc3 Qe7 11. Nd2 e5 12. f3 exd4 13. Bxd4 c5 14. Bxf6 Qxe3+ 15. Kh1 Nxf6 16. Ne4 Bxe4 17. fxe4 Nxe4 18. Bxe4 Qxe4 19. Qxd6 Qxc4 20. Rad1 Rad8 21. Qc7 Rd2 22. b4 Qe2 0-1

[Event "Groningen ABM op"]
[Site "Groningen"]
[Date "1999.??.??"]
[Round "?"]
[White "Potze, Rudolf"]
[Black "Bosker, Peter"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "129"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 Nf6 7. f3 0-0 8. Bc4 Nbd7 9. Qd2 Ne5 10. Be2 Re8 11. 0-0-0 c6 12. Nb3 d5 13. exd5 Nxd5 14. Nxd5 cxd5 15. Rhe1 Be6 16. Nd4 Bd7 17. b3 a6 18. h3 Qe7 19. Bf1 Qa3+ 20. Kb1 Nc6 21. c3 Qf8 22. g4 Rac8 23. Rc1 Nxd4 24. Bxd4 Bc6 25. Bg2 Bxd4 26. Qxd4 Qg7 27. Qxg7+ Kxg7 28. f4 Re6 29. Rxe6 fxe6 30. Re1 Rf8 31. Rxe6 Rxf4 32. Re2 Kf6 33. Kc2 d4 34. Bxc6 bxc6 35. cxd4 Rxd4 36. a4 Rf4 37. Re3 Kg5 38. a5 Kh4 39. Kc3 c5 40. Re6 Kxh3 41. Rxa6 Kxg4 42. Rc6 g5 43. Rxc5 Rf3+ 44. Kc4 h5 45. a6 h4 46. Rc8 h3 47. Rh8 Rf7 48. b4 Kg3 49. b5 Ra7 50. Kc5 h2 51. Kb6 Ra8 52. Rh7 Rf8 53. a7 Rf6+ 54. Ka5 Rf7 55. a8Q Rxh7 56. Qh1 g4 57. Qe1+ Kf3 58. Qf1+ Ke3 59. Qe1+ Kf3 60. Qc3+ Kg2 61. Qc2+ Kg1 62. Qd1+ Kf2 63. Qd2+ Kg3 64. Qd3+ Kf2 65. Qf5+ 1-0

[Event "Groningen op-B"]
[Site "Groningen"]
[Date "1995.??.??"]
[Round "7"]
[White "Bosker, Peter"]
[Black "Hopman, Pieter"]
[Result "1-0"]
[ECO "E19"]
[PlyCount "135"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. c4 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. Ne5 Bxg2 11. Kxg2 f5 12. b4 Bf6 13. Qf3 c6 14. Bb2 d5 15. Rac1 Bxe5 16. dxe5 Qd7 17. Rfd1 b5 18. cxb5 cxb5 19. Qc3 Qf7 20. Qd3 f4 21. f3 a5 22. bxa5 Rxa5 23. a3 Qb7 24. Bd4 Nc6 25. Rc3 Ra4 26. e3 fxe3 27. Qxe3 Nxd4 28. Rxd4 Rc4 29. Rb3 Qc6 30. Rd2 Rc1 31. Rdb2 Qc4 32. Qe2 d4 33. Rb4 Qc3 34. R4b3 Qc6 35. Rxb5 Rc3 36. Qe4 Qxe4 37. fxe4 d3 38. Rd2 g5 39. a4 g4 40. Rbb2 Ra8 41. Ra2 Rc4 42. a5 Rxe4 43. Rxd3 Rxe5 44. a6 Kg7 45. Rd7+ Kg6 46. a7 Rf5 47. Re7 e5 48. Ra6+ Rf6 49. Rxf6+ Kxf6 50. Rxh7 Kf5 51. Rb7 Ke4 52. Kf2 Kd3 53. Rb3+ Kd2 54. Rb2+ Kd3 55. Rb7 Rf8+ 56. Ke1 Ra8 57. Rb3+ Kc4 58. Ra3 Kb4 59. Ra2 Kc3 60. Ke2 Kd4 61. Ra4+ Kd5 62. Ke3 Kc6 63. Ke4 Kb7 64. Kxe5 Re8+ 65. Kf4 Ra8 66. Kxg4 Rg8+ 67. Kf3 Rf8+ 68. Kg2 1-0

[Event "Groningen op-B"]
[Site "Groningen"]
[Date "1995.??.??"]
[Round "8"]
[White "Rumjancev, Nikolaj"]
[Black "Bosker, Peter"]
[Result "1-0"]
[ECO "D51"]
[PlyCount "79"]
[EventDate "1995.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Nf3 e6 6. Bg5 Be7 7. e3 0-0 8. Bd3 b6 9. 0-0 Nbd7 10. Rc1 Bb7 11. Qa4 a6 12. Qd1 h6 13. Bh4 Ne8 14. Bxe7 Qxe7 15. Ne5 Nef6 16. f4 Rac8 17. f5 Qd6 18. fxe6 fxe6 19. Ng6 Rfe8 20. Qf3 e5 21. Bf5 e4 22. Qh3 Rcd8 23. Rf4 Nf8 24. Ne5 N6d7 25. Bxd7 Nxd7 26. Nf7 Qxf4 27. exf4 Kxf7 28. Qh5+ Kg8 29. Nxd5 e3 30. Re1 Bxd5 31. Qxd5+ Kh8 32. Qf3 Re6 33. Rxe3 Rd6 34. Re7 Nf8 35. f5 Rxd4 36. h3 Nh7 37. Qb7 Nf6 38. Rxg7 R4d6 39. Qf7 Rg8 40. Rg6 1-0

