[Event "Cappelle op 40th"]
[Site "Cappelle la Grande"]
[Date "2024.03.05"]
[Round "5"]
[White "Duboue, Peio"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2454"]
[BlackElo "2223"]
[PlyCount "83"]
[EventDate "2024.03.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CB11_2024"]
[SourceDate "2024.03.13"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.13"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Qa4+ Nbd7 6. Nc3 g6 7. Nf3 Bg7 8. Bc4 0-0 9. d3 a6 10. Qa3 b6 11. 0-0 Bb7 12. Re1 b5 13. Bb3 Re8 14. Be3 Bf8 15. Qb4 e6 16. Qf4 Nxd5 17. Nxd5 Bxd5 18. Bxd5 exd5 19. Bd4 Rxe1+ 20. Rxe1 Qb8 21. Qxb8 Rxb8 22. Rc1 Nb6 23. Rc7 Bg7 24. Bxg7 Kxg7 25. Ng5 h6 26. Nxf7 Kf6 27. Nxh6 Ke5 28. Kf1 Kd4 29. Ke2 Na4 30. Rc6 Nxb2 31. Rxg6 Nxd3 32. Nf5+ Ke5 33. Kxd3 Kxf5 34. Rxa6 Ke5 35. g3 Rh8 36. f4+ Kf5 37. Ke3 Rc8 38. Rd6 Rc3+ 39. Kd4 Rc2 40. Rxd5+ Kg4 41. Rxb5 Rxh2 42. Rg5+ 1-0

[Event "Cappelle op 40th"]
[Site "Cappelle la Grande"]
[Date "2024.03.04"]
[Round "4"]
[White "Grooten, Herman"]
[Black "Loiseau, Quentin"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "2223"]
[BlackElo "2412"]
[PlyCount "89"]
[EventDate "2024.03.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "FRA"]
[SourceTitle "CB11_2024"]
[SourceDate "2024.03.13"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. b3 0-0 8. Bd3 Re8 9. 0-0 a6 10. Bb2 e5 11. cxd5 cxd5 12. e4 exd4 13. Nxd5 Nxd5 14. exd5 Nf6 15. Nxd4 h6 16. Rfe1 Nxd5 17. Nf5 Bxf5 18. Bxf5 Qa5 19. Re4 Ba3 20. Bd4 Nb4 21. Qe2 Rxe4 22. Bxe4 Nc6 23. Bxc6 bxc6 24. Rd1 Rd8 25. Ba1 Rxd1+ 26. Qxd1 Qf5 27. Bd4 h5 28. f3 Qd5 29. Qa1 f6 30. Qc3 Kf7 31. Kf2 Bd6 32. h4 Be7 33. Ke2 g6 34. Be3 Ke6 35. Qc2 f5 36. Bg5 Bc5 37. Qc4 Qxc4+ 38. bxc4 Bd6 39. Kd3 Bg3 40. Bd8 Kd7 41. Bf6 Ke6 42. Bd8 Kd7 43. Bf6 Kd6 44. Bg5 Ke6 45. Bd8 1/2-1/2

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.30"]
[Round "9"]
[White "Grooten, Herman"]
[Black "Vijayakumar, Rishi"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "2243"]
[BlackElo "2104"]
[PlyCount "78"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. g3 c5 4. b4 Nf6 5. bxc5 Nc6 6. d3 e5 7. Bg2 Bxc5 8. 0-0 h6 9. Ba3 Nd7 10. Nfd2 0-0 11. Qc1 f5 12. Nb3 Bxa3 13. Qxa3 Nf6 14. N1d2 Re8 15. Bxc6 bxc6 16. Qc5 Qc7 17. e3 a5 18. exd4 a4 19. Nc1 Nd7 20. Qb4 exd4 21. c5 Qa5 22. Qc4+ Kh7 23. Nf3 Qxc5 24. Nxd4 Qxc4 25. dxc4 Ne5 26. c5 Ba6 27. Rd1 Rad8 28. Kg2 Rd5 29. Nce2 Red8 30. Rd2 Ng6 31. Rb2 Rxd4 32. Nxd4 Rxd4 33. Rb6 Bc4 34. a3 Bd5+ 35. Kf1 Ne5 36. Rab1 Nf3 37. R1b4 Rd2 38. h3 Be4 39. g4 Rd1+ 0-1

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.29"]
[Round "8"]
[White "Kanyamarala, Trisha"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2184"]
[BlackElo "2243"]
[PlyCount "130"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Nc3 Bb7 8. Bg2 0-0 9. 0-0 d5 10. cxd5 exd5 11. Qc2 Nbd7 12. Rad1 Re8 13. Ne5 Nf8 14. Rfe1 Ne6 15. e3 a6 16. Bc1 Qd6 17. f4 c5 18. dxc5 Qxc5 19. Qd3 Red8 20. Bb2 Qa5 21. a3 b5 22. b4 Qb6 23. Ne2 a5 24. f5 Ng5 25. Bd4 Qa6 26. Ra1 Nge4 27. Nf4 Nd6 28. Bf3 Nfe4 29. Bg4 Nc4 30. Nh5 Qd6 31. Nf3 f6 32. Nf4 Ne5 33. Nxe5 fxe5 34. Bc5 Nxc5 35. bxc5 Qc6 36. Ne6 Re8 37. Rab1 d4 38. e4 Ba6 39. Qb3 Kh8 40. Qd5 Rec8 41. Qxe5 Bf6 42. Qf4 Bb7 43. Bf3 d3 44. Rf1 Bc3 45. e5 Qd7 46. Bxb7 Qxb7 47. f6 g5 48. Qxg5 Rg8 49. Qg7+ Rxg7 50. fxg7+ Qxg7 51. Nxg7 Kxg7 52. Rxb5 Bxe5 53. Rd1 Rd8 54. c6 Kf6 55. Rb7 d2 56. c7 Rc8 57. Rxd2 Ke6 58. Rd8 Rxc7 59. Rxc7 Bxc7 60. Rh8 Kd5 61. Rxh7 Bb6+ 62. Kf1 Kc4 63. a4 Bd8 64. Rb7 Bf6 65. h4 Kd5 1-0

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.28"]
[Round "7"]
[White "Grooten, Herman"]
[Black "Kazarjan, Gachatur"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2243"]
[BlackElo "2078"]
[PlyCount "57"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 c5 3. e3 e6 4. Bb2 Nf6 5. Ne5 Be7 6. d3 Nc6 7. Nxc6 bxc6 8. Nd2 0-0 9. Be2 Qc7 10. 0-0 Nd7 11. f4 f5 12. Nf3 Bf6 13. Bxf6 Rxf6 14. Qd2 Ba6 15. c4 Re8 16. Rac1 d4 17. exd4 cxd4 18. c5 e5 19. fxe5 Nxe5 20. Nxd4 Qd7 21. Qc3 Rd8 22. Nc2 Re6 23. Nb4 Nxd3 24. Bxd3 Bxd3 25. Rcd1 Re3 26. Rf3 Qe6 27. Rxd3 Re1+ 28. Rf1 Rxd3 29. Rxe1 1-0

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.27"]
[Round "6"]
[White "Van Helvoort, Rob AM"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2098"]
[BlackElo "2243"]
[PlyCount "141"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Qf3 e6 4. d4 Nf6 5. Bg5 dxe4 6. Nxe4 Be7 7. Bxf6 gxf6 8. c3 f5 9. Nd2 Nd7 10. Nc4 Qc7 11. Qe3 Nb6 12. Nf3 Nd5 13. Qd2 Qf4 14. Qxf4 Nxf4 15. g3 Nd5 16. Nce5 f6 17. Nd3 Bd7 18. Bg2 Bd6 19. Nd2 Rd8 20. 0-0-0 Kf7 21. Bf3 Bc7 22. Bh5+ Kg7 23. Rde1 b6 24. h3 Rhf8 25. Bf3 Bc8 26. Bxd5 cxd5 27. Kc2 Rfe8 28. f4 a5 29. Nf3 Kf7 30. Rhg1 Ba6 31. Nf2 Rg8 32. Nh1 Rg7 33. Re3 Bxf4 34. gxf4 Rdg8 35. Rxg7+ Rxg7 36. Ne1 Bf1 37. Nf2 h5 38. Kd2 a4 39. a3 Ke7 40. h4 Kd6 41. Rf3 Bc4 42. Rh3 Bb5 43. Ned3 Ke7 44. Ne1 Kf8 45. Ke3 Bc4 46. Kf3 Rg4 47. Rh2 Rg7 48. Rg2 Ra7 49. Ned3 Kf7 50. Rg3 Ra8 51. Nb4 Bb3 52. Ke2 Re8 53. Kd2 Rc8 54. Nd1 Rd8 55. Ne3 Rc8 56. Nd3 Ba2 57. Rg1 Rd8 58. Ke2 Bb3 59. Kf2 Rd7 60. Nc1 Bc4 61. Nxc4 dxc4 62. Na2 Rd6 63. Nb4 Rd8 64. Nc2 b5 65. Ne3 e5 66. Nxf5 exf4 67. Kf3 Rd5 68. Kxf4 Ke6 69. Re1+ Kf7 70. Re7+ Kf8 71. Rb7 1-0

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.26"]
[Round "5"]
[White "Bakija, Alan"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2010"]
[BlackElo "2243"]
[PlyCount "132"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. c4 b6 2. d4 Bb7 3. Nc3 e6 4. a3 f5 5. d5 Nf6 6. Nf3 Na6 7. b4 g6 8. Bf4 Bg7 9. Rc1 0-0 10. g3 Ne4 11. Be5 Bxe5 12. Nxe5 Nxc3 13. Rxc3 exd5 14. Bg2 c6 15. cxd5 c5 16. 0-0 Qf6 17. Re3 Rfe8 18. Qb3 d6 19. Nc6 Rxe3 20. Qxe3 Nc7 21. bxc5 bxc5 22. Rb1 Ba6 23. Qd2 Qf7 24. h4 Ne8 25. e3 Nf6 26. Qc3 Re8 27. Qa5 Bd3 28. Rd1 Bc4 29. Nd8 Qd7 30. Ne6 Bb3 31. Rb1 c4 32. Nd4 Rb8 33. Nxb3 cxb3 34. Qc3 Ng4 35. Rxb3 Rxb3 36. Qxb3 Qc7 37. Qb2 Qa5 38. Qb4 Qc7 39. Qb2 Qa5 40. Qc1 Ne5 41. Qc8+ Kg7 42. Qb7+ Kf6 43. Qb4 Qxb4 44. axb4 Nd3 45. b5 Nb4 46. f4 Na2 47. Bf1 Nc3 48. Kf2 Nxd5 49. Kf3 Nc3 50. g4 d5 51. Bd3 Ne4 52. gxf5 gxf5 53. Kg2 Ke6 54. Kf1 Kd6 55. Ke1 Kc5 56. Bf1 h6 57. Bd3 Kb4 58. Bf1 Kc3 59. Bh3 Kd3 60. Bxf5 Kxe3 61. Be6 d4 62. f5 d3 63. Bb3 d2+ 64. Kf1 Ng3+ 65. Kg2 Nxf5 66. Kh3 Kf4 0-1

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.24"]
[Round "4"]
[White "Grooten, Herman"]
[Black "Ritzerveld, Noah"]
[Result "0-1"]
[ECO "D78"]
[WhiteElo "2243"]
[BlackElo "1997"]
[PlyCount "102"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. Nbd2 Ne4 8. e3 Bf5 9. Ne1 Nd7 10. cxd5 cxd5 11. g4 Nxd2 12. Bxd2 Be6 13. Nd3 Nf6 14. f3 b6 15. Qb3 Bc8 16. Rfc1 Ba6 17. Ne5 Rc8 18. g5 Ne8 19. Nc6 Qd7 20. Qxd5 Nd6 21. Ne5 Qb7 22. f4 Qxd5 23. Bxd5 Bxe5 24. fxe5 Nc4 25. Rc2 Nxe5 26. Rac1 Rxc2 27. Rxc2 Rd8 28. Bg2 Nc4 29. Bc1 Rd7 30. b3 Nd6 31. Kf2 Bd3 32. Rc6 Ne4+ 33. Bxe4 Bxe4 34. Rc8+ Kg7 35. Bb2 Rd5 36. h4 h6 37. Rc7 e6 38. gxh6+ Kxh6 39. Rxa7 Rf5+ 40. Kg3 Rf3+ 41. Kg2 Kh5 42. d5 exd5 43. Bd4 Kxh4 44. Kg1 Kh3 45. Ra8 Bd3 46. Rh8+ Kg3 47. Be5+ Kg4 48. Bd4 Rf1+ 49. Kg2 Rc1 50. Bxb6 Rc2+ 51. Kg1 Kg3 0-1

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.23"]
[Round "3"]
[White "Jin, Yueheng"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "A63"]
[WhiteElo "2398"]
[BlackElo "2243"]
[PlyCount "97"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nf3 Bg7 8. Bg2 0-0 9. 0-0 Re8 10. Re1 a6 11. a4 Nbd7 12. Bf4 Nh5 13. Bg5 Qc7 14. e4 Rb8 15. a5 b5 16. axb6 Rxb6 17. Qc2 Ne5 18. Nxe5 Bxe5 19. Be3 Bd7 20. Ra2 Reb8 21. Bf1 f5 22. exf5 Bxf5 23. Qc1 a5 24. Na4 R6b7 25. Bc4 Nf6 26. Nxc5 Bxb2 27. Rxb2 Rxb2 28. Na6 Qf7 29. Nxb8 Rc2 30. Qa3 Rxc4 31. Qxd6 Ne8 32. Qa3 Qxd5 33. Bh6 Nd6 34. Qa1 Qd4 35. Qxa5 Ne4 36. Be3 Qd6 37. Qb5 Rc8 38. Bf4 Qc5 39. Qb3+ Qc4 40. Qb7 Qd4 41. Rf1 Nc5 42. Qe7 Nd3 43. Nc6 Qg7 44. Be3 Bd7 45. Rd1 Re8 46. Qd6 Re6 47. Qd5 Nb2 48. Rd4 Qf7 49. Nd8 1-0

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.21"]
[Round "1"]
[White "Kobo, Ori"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2541"]
[BlackElo "2243"]
[PlyCount "89"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bf4 dxc4 6. e3 Nd5 7. Bxc4 Nxf4 8. exf4 Nb6 9. Bb3 g6 10. h4 Bg7 11. h5 Bd7 12. Ne5 Qe7 13. Qg4 0-0-0 14. 0-0-0 Kb8 15. Qh4 Bf6 16. Qg3 Bc6 17. Rhe1 Bd5 18. Bxd5 Nxd5 19. Ne4 gxh5 20. Rh1 Bxe5 21. fxe5 Qe8 22. Qf3 Nb4 23. Kb1 Qc6 24. Rd2 Qd5 25. b3 Nc6 26. Rhd1 Ne7 27. Ng5 Qxf3 28. gxf3 Rdf8 29. Rh1 h6 30. Ne4 Rd8 31. Rxh5 Nf5 32. d5 Ng7 33. Rh1 exd5 34. Nf6 c6 35. f4 h5 36. Rg1 Ne8 37. Nxe8 Rdxe8 38. Rg7 h4 39. f3 Reg8 40. Rg4 h3 41. Rh2 Rxg4 42. fxg4 Kc7 43. Kc2 Rh4 44. f5 Kd7 45. Kd3 1-0

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.19"]
[Round "9"]
[White "Grooten, Herman"]
[Black "De Waele, Warre"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2241"]
[BlackElo "2350"]
[PlyCount "124"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 0-0 7. Bd2 dxc4 8. Bxc4 a6 9. Qc2 Bd6 10. h3 b5 11. Be2 Bb7 12. Rd1 e5 13. 0-0 Re8 14. Bc1 exd4 15. exd4 b4 16. Nb1 b3 17. axb3 Nb4 18. Qd2 Ne4 19. Qe1 a5 20. Na3 Nd5 21. Nc2 Bb4 22. Nxb4 Nxb4 23. Bc4 Nd6 24. Be3 Bxf3 25. gxf3 Qh4 26. Kh2 Nf5 27. Rd2 Rad8 28. Rg1 h6 29. Rg4 Qf6 30. Qg1 Nh4 31. Be2 Nd5 32. Rd3 Nf5 33. Kh1 Qd6 34. Bd1 Re6 35. Bd2 Rde8 36. Kg2 Nf6 37. Rf4 Nd5 38. Rg4 h5 39. Rg3 Nxg3 40. fxg3 Rg6 41. g4 Rge6 42. Qf1 Nf4+ 43. Bxf4 Qxf4 44. Qf2 Re1 45. Qd2 Qf6 46. g5 Qf5 47. h4 f6 48. Rc3 fxg5 49. hxg5 Qd7 50. f4 Qb5 51. Qd3 Qxd3 52. Rxd3 R8e3 53. Rd2 g6 54. Kf2 Re7 55. Be2 Rc1 56. d5 Kg7 57. Bf3 Rb1 58. Kg3 Re3 59. d6 cxd6 60. Kf2 Rxb3 61. Rxd6 R1xb2+ 62. Be2 Rc3 0-1

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.18"]
[Round "8"]
[White "Grooten, Herman"]
[Black "Maerevoet, Sim"]
[Result "0-1"]
[ECO "D27"]
[WhiteElo "2241"]
[BlackElo "2414"]
[PlyCount "62"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. e3 a6 6. a4 b6 7. Bxc4 Bb7 8. 0-0 c5 9. Qe2 Nbd7 10. Rd1 Qc7 11. e4 cxd4 12. Nxd4 Bc5 13. Bxe6 fxe6 14. Nxe6 Qe5 15. Nxg7+ Kf7 16. Nf5 h5 17. b4 Bf8 18. Bb2 Re8 19. Qf3 Qe6 20. Qg3 Rg8 21. Qh3 Ne5 22. Rac1 Qb3 23. f4 Qxb2 24. fxe5 Rxe5 25. Ne3 Qxb4 26. Ncd5 Bxd5 27. Rc7+ Kg6 28. Nxd5 Bc5+ 29. Kf1 Qc4+ 30. Rd3 Qc1+ 31. Ke2 Rxe4+ 0-1

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.17"]
[Round "7"]
[White "Csonka, Balazs"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2497"]
[BlackElo "2241"]
[PlyCount "65"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 b6 3. Nc3 Nf6 4. e4 d6 5. d4 cxd4 6. Nxd4 Bb7 7. f3 e6 8. Be3 Be7 9. g4 0-0 10. Qd2 Nc6 11. 0-0-0 a6 12. Kb1 Nd7 13. h4 Nxd4 14. Bxd4 Qc7 15. Be2 Bc6 16. g5 Qb7 17. h5 f5 18. h6 g6 19. Bg7 Rf7 20. Rh4 Nf8 21. exf5 gxf5 22. Bxf8 Rfxf8 23. f4 e5 24. Qe3 exf4 25. Qd4 Be4+ 26. Ka1 Bd8 27. Rxf4 Re8 28. Nxe4 fxe4 29. Rdf1 Bxg5 30. Rf7 Qxf7 31. Rxf7 Kxf7 32. Qg7+ Ke6 33. Bg4# 1-0

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.16"]
[Round "6"]
[White "Grooten, Herman"]
[Black "Ruzhansky, Elias"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "2241"]
[BlackElo "2209"]
[PlyCount "105"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 0-0 8. Qd2 b6 9. cxd5 exd5 10. b4 c6 11. Rb1 Bf5 12. Bd3 Bxd3 13. Qxd3 Qd6 14. 0-0 Nd7 15. b5 Rfd8 16. bxc6 Qxc6 17. Rfc1 Rac8 18. Qb5 Nf8 19. Ne1 Qb7 20. Nd3 Ng6 21. Nb4 Ne7 22. Ne2 Bg5 23. g3 Nf5 24. Qd3 Qd7 25. Rc3 Rxc3 26. Nxc3 Ne7 27. Kg2 h5 28. h4 Bf6 29. Qe2 g6 30. Qf3 Kg7 31. Rc1 a5 32. Nd3 Rc8 33. a4 Qe6 34. Nf4 Qf5 35. Qd1 Rc4 36. Nb5 Qc8 37. Ne2 Nf5 38. Rxc4 Qxc4 39. Nec3 Qc6 40. Kg1 Ne7 41. Qf3 Qc4 42. Qe2 Qc6 43. Qa2 Kf8 44. Qa3 Kg7 45. Qd6 Qc4 46. Nc7 Qxc3 47. Ne8+ Kf8 48. Nxf6 Qc1+ 49. Kg2 Qc8 50. Nxd5 Qb7 51. e4 Ke8 52. Nc7+ Kf8 53. Qd8+ 1-0

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.15"]
[Round "5"]
[White "Dauw, Sterre"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "2244"]
[BlackElo "2241"]
[PlyCount "102"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Qf3 e6 6. Ne2 Nf6 7. Nxf6+ gxf6 8. Qb3 Qb6 9. Qxb6 axb6 10. c3 b5 11. h4 Nd7 12. Ng3 Bc2 13. Bd2 Bb3 14. Bd3 Rxa2 15. 0-0 Ra4 16. c4 Bd6 17. Ne4 Ke7 18. Nxd6 Kxd6 19. Bf4+ Ke7 20. Rxa4 bxa4 21. c5 b5 22. Bd6+ Kd8 23. Be4 Bd5 24. Bxd5 exd5 25. Re1 Rg8 26. f4 f5 27. Re7 Rg7 28. Kh2 h5 29. Re1 Rg6 30. Re7 Rf6 31. Kg3 b4 32. Re1 Re6 33. Ra1 a3 34. Kf2 Nf6 35. bxa3 Ne4+ 36. Kg1 b3 37. Rb1 Nd2 38. Rb2 Re2 39. Kh1 Kc8 40. a4 Kb7 41. Be5 Ka6 42. Bc7 Re1+ 43. Kh2 Nf1+ 44. Kg1 Ne3+ 45. Kf2 Nd1+ 46. Kxe1 Nxb2 47. a5 Nc4 48. Kd1 Nxa5 49. Kd2 Nc4+ 50. Kc3 b2 51. Kc2 Kb5 0-1

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.14"]
[Round "4"]
[White "Grooten, Herman"]
[Black "Miedema, David"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2241"]
[BlackElo "2375"]
[PlyCount "114"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 0-0 7. Bd2 Re8 8. 0-0-0 Ng4 9. Be1 Bxc3 10. bxc3 Nf6 11. Qc2 Qe7 12. Bd3 dxc4 13. Bxc4 e5 14. Ng5 Nd8 15. f3 exd4 16. exd4 h6 17. h4 b5 18. Bb3 a5 19. Ne4 a4 20. Nxf6+ Qxf6 21. Bd5 Bb7 22. Bxb7 Nxb7 23. Bg3 c5 24. Be5 Qe6 25. Rhe1 cxd4 26. Bg3 Qc6 27. cxd4 Qd5 28. Kb1 Rec8 29. Qe4 Qc4 30. d5 Qc3 31. Be5 Qa3 32. Qg4 Qf8 33. d6 f6 34. Bf4 Rc4 35. Qe6+ Kh8 36. Bg3 Rac8 37. Rc1 Nc5 38. Qd5 a3 39. Rxc4 bxc4 40. d7 Nxd7 41. Qxd7 Qb4+ 42. Kc2 Qb2+ 43. Kd1 Qb1+ 44. Ke2 Qxa2+ 45. Kf1 Rg8 46. Bf2 c3 47. Qc6 Qd2 48. Qa4 a2 49. Be3 Qd3+ 50. Kf2 Rb8 51. Bd4 c2 52. Kg3 Qd2 53. Re8+ Kh7 54. Bb2 Qd6+ 55. Kh3 Rxe8 56. Qxe8 c1Q 57. Qe4+ f5 0-1

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.13"]
[Round "3"]
[White "Van der Stricht, Geert"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2329"]
[BlackElo "2241"]
[PlyCount "113"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bg7 7. g3 d6 8. Bg2 0-0 9. Nf3 Nbd7 10. 0-0 Nb6 11. e4 Bxa6 12. Re1 Nfd7 13. Bf1 Nc4 14. Bxc4 Bxc4 15. Qc2 Qa5 16. Bf4 Bxc3 17. bxc3 f6 18. a4 Rfb8 19. Nd2 Qa6 20. a5 Bd3 21. Qd1 c4 22. Be3 Qc8 23. Qg4 Nc5 24. Qxc8+ Rxc8 25. Bxc5 Rxc5 26. a6 Ra7 27. f3 Rb5 28. Ra2 Kf7 29. Kf2 e6 30. dxe6+ Kxe6 31. Rea1 d5 32. Ra5 Rb2 33. exd5+ Kd6 34. Ke3 f5 35. R1a2 Rxa2 36. Rxa2 Kxd5 37. Ra5+ Kc6 38. Kd4 Rd7+ 39. Ke5 Ra7 40. Ra2 Kb6 41. Kd6 Rxa6 42. Rxa6+ Kxa6 43. Kc5 Be2 44. f4 Ka5 45. Nxc4+ Ka4 46. Ne5 Kb3 47. Kd4 Kc2 48. Nd7 Bb5 49. Nf8 Kd2 50. Nxh7 Ke2 51. c4 Be8 52. Nf6 Ba4 53. Nd5 Kf3 54. Ne7 Kg2 55. Ke3 Kxh2 56. Kf2 Kh3 57. Nxg6 1-0

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.12"]
[Round "2"]
[White "Pijpers, Arthur"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "C16"]
[WhiteElo "2465"]
[BlackElo "2241"]
[PlyCount "51"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. h4 Qd7 6. Qg4 Bf8 7. h5 h6 8. b4 f5 9. Qg6+ Kd8 10. a3 Ne7 11. Qg3 Qe8 12. Nge2 g5 13. hxg6 Nxg6 14. Nf4 Nxf4 15. Bxf4 a5 16. b5 c5 17. bxc6 Nxc6 18. Nb5 Ba6 19. Rb1 Kc8 20. Qb3 Rh7 21. Rh3 Bb7 22. Bxh6 Be7 23. Nc7 Qg6 24. Nxa8 Bxa8 25. Qxb6 Nb4 26. Rc3+ 1-0

[Event "Ghent op 44th"]
[Site "Ghent"]
[Date "2023.07.11"]
[Round "1"]
[White "Grooten, Herman"]
[Black "Dgebuadze, Alexandre"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2241"]
[BlackElo "2433"]
[PlyCount "101"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Nd2 b6 4. a3 Bxd2+ 5. Qxd2 Bb7 6. e3 d6 7. b4 Nd7 8. Bb2 e5 9. Ne2 a5 10. Rd1 axb4 11. axb4 Ngf6 12. Ng3 0-0 13. f3 Re8 14. Be2 Ra2 15. Kf2 Qe7 16. Ra1 exd4 17. exd4 Rea8 18. Rxa2 Ra7 19. Ra3 Rxa3 20. Rf1 Ra2 21. Re1 Qf8 22. Bd3 d5 23. Nf5 g6 24. Ne7+ Kg7 25. c5 Ne4+ 26. Bxe4 Qxe7 27. Bb1 Qh4+ 28. Ke2 Ra8 29. Kd1 Bc6 30. g3 Qf6 31. Qe2 Ba4+ 32. Kc1 Kg8 33. Bd3 Nf8 34. b5 c6 35. bxc6 Qxc6 36. Qe5 Nd7 37. Qd6 bxc5 38. Qxc6 Bxc6 39. dxc5 Nxc5 40. Bc2 Ne6 41. f4 Ba4 42. Bb1 Nc5 43. Bf6 Bd7 44. Re7 Rc8 45. Kd2 Kf8 46. Re3 Be6 47. Rc3 Ke8 48. Ke3 Kd7 49. Kd4 Ne4 50. Rxc8 Kxc8 51. Bxe4 1/2-1/2

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "9"]
[White "Baselmans, Luuk"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2338"]
[BlackElo "2241"]
[PlyCount "81"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. dxc5 Bxc5 6. Bd3 Nf6 7. 0-0 Nc6 8. Qe2 Nb4 9. e5 Nd7 10. a3 Nxd3 11. cxd3 b6 12. b4 Be7 13. Nd4 Qc7 14. N2f3 a5 15. Bg5 Bxg5 16. Nxg5 Qxe5 17. Qh5 g6 18. Qh4 Qf6 19. Nb5 h6 20. Nc7+ Kd8 21. Ngxe6+ fxe6 22. Qxf6+ Nxf6 23. Nxa8 Nd7 24. Rfc1 Bb7 25. Nc7 Ke7 26. bxa5 bxa5 27. Rab1 Rb8 28. d4 Kd6 29. f4 Bc6 30. Na6 Rf8 31. g3 g5 32. fxg5 hxg5 33. Nc5 Rf3 34. Rb3 Rxb3 35. Nxb3 a4 36. Nc5 Nb6 37. Nxe6 Nc4 38. Nxg5 Nxa3 39. Nf7+ Ke7 40. Rxc6 Kxf7 41. Ra6 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "7"]
[White "Fransen, Jean Paul"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "C02"]
[BlackElo "2241"]
[PlyCount "82"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Bd7 5. Nf3 Qb6 6. Bd3 Bb5 7. 0-0 Bxd3 8. Qxd3 Qa6 9. Qc2 Nc6 10. dxc5 Bxc5 11. b4 Bf8 12. a4 Qb6 13. b5 Na5 14. Be3 Qc7 15. Na3 Bxa3 16. Rxa3 Nc4 17. Rb3 Ne7 18. Bd4 Ng6 19. h4 0-0 20. h5 Ngxe5 21. Nxe5 Nxe5 22. c4 Nxc4 23. Rg3 e5 24. Ba1 Qd6 25. f4 Rac8 26. Qf5 Qh6 27. Bxe5 Nxe5 28. fxe5 Rc7 29. Rd1 Rc1 30. Rgd3 Rxd1+ 31. Rxd1 Qe3+ 32. Kh1 d4 33. Qd7 Qxe5 34. Rxd4 Qxh5+ 35. Kg1 Qc5 36. Kh1 h6 37. Rd5 Qc8 38. Qd6 Re8 39. Rc5 Qg4 40. Rc7 Qh4+ 41. Kg1 Re1# 0-1

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "2"]
[White "Govoreanu, Matei"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "C16"]
[WhiteElo "1938"]
[BlackElo "2241"]
[PlyCount "118"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. Bd3 Qd7 6. Bd2 Ba6 7. Bxa6 Nxa6 8. Qe2 Nb8 9. Nf3 Ne7 10. 0-0 Bxc3 11. Bxc3 c5 12. a4 Nbc6 13. a5 0-0 14. Ra2 c4 15. b3 b5 16. bxc4 dxc4 17. Rb1 Rab8 18. Qe4 Qd5 19. Ng5 Qxe4 20. Nxe4 b4 21. Bd2 Nf5 22. Nc5 Rb5 23. c3 b3 24. Ra4 Nxa5 25. Ne4 h5 26. h3 Rd8 27. g4 hxg4 28. hxg4 Nh4 29. Kf1 Nf3 30. Be3 Nh2+ 31. Kg2 Nxg4 32. Nd6 Rd5 33. Nxc4 Nxc4 34. Rxc4 Rb8 35. Bc1 a5 36. Ba3 f6 37. Kg3 Nh6 38. f4 Nf5+ 39. Kf2 fxe5 40. fxe5 Rb7 41. Bc5 Rf7 42. Ke2 Ng3+ 43. Ke3 Rb7 44. Ra4 Rdd7 45. Rxa5 Rf7 46. Bb4 Rf1 47. Rxb3 Rbf7 48. Ra8+ Kh7 49. Kd3 R7f3+ 50. Kc4 Nf5 51. Bc5 Ne3+ 52. Kb4 Nd5+ 53. Kc4 Rc1 54. Raa3 Kg6 55. Kb5 Rcxc3 56. Rxc3 Rxc3 57. Ra6 Nc7+ 58. Kb6 Nxa6 59. Kxa6 Kf5 0-1

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "5"]
[White "Grooten, Herman"]
[Black "Gudok, Viktor V"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2241"]
[BlackElo "2085"]
[PlyCount "66"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[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. Kh1 Nh5 10. g3 Kh8 11. Ne1 Bh3 12. Rg1 f5 13. exf5 Nf6 14. fxg6 Nxg6 15. f3 Qe7 16. Be3 h5 17. Qd2 e4 18. Bg5 exf3 19. Nxf3 Rae8 20. Bd3 Ne5 21. Nxe5 Qxe5 22. Rge1 Qd4 23. Bg6 Rxe1+ 24. Rxe1 Ng4 25. Ne4 Rf2 26. Qxd4 Bxd4 27. Nxf2 Nxf2+ 28. Kg1 Ng4+ 29. Kh1 Kg7 30. Bxh5 Nf2+ 31. Kg1 Ng4+ 32. Kh1 Nf2+ 33. Kg1 Ng4+ 1/2-1/2

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "3"]
[White "Grooten, Herman"]
[Black "Lysakov, Anton"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2241"]
[BlackElo "2032"]
[PlyCount "33"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Nc3 Nbd7 6. Bg2 dxc4 7. Nh4 Bg6 8. f4 e6 9. 0-0 Bb4 10. f5 Bxf5 11. Nxf5 exf5 12. Rxf5 0-0 13. e4 Re8 14. e5 Nd5 15. Nxd5 cxd5 16. Bxd5 Re7 17. Bg5 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "6"]
[White "Grooten, Herman"]
[Black "Overtoom, Reinier"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "2241"]
[BlackElo "1799"]
[PlyCount "80"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 Nc6 3. Nc3 e5 4. d5 Ne7 5. Nf3 Ng6 6. g3 Bc5 7. Bg2 0-0 8. 0-0 a6 9. Rb1 d6 10. b4 Ba7 11. Nd2 Re8 12. Qc2 Bd7 13. Nb3 Qc8 14. Bg5 Bf5 15. e4 Bh3 16. Bxf6 gxf6 17. c5 Bxg2 18. Kxg2 Qg4 19. f3 Qg5 20. Kh1 Kh8 21. Nd1 Rg8 22. Qc1 Qh5 23. Ne3 Ne7 24. Qe1 Qg5 25. Rb2 f5 26. exf5 Nxf5 27. f4 exf4 28. Nxf5 Qxf5 29. Qc3+ f6 30. Qf3 Rae8 31. Rd2 Re5 32. Nd4 Qe4 33. Ne6 Qxb4 34. gxf4 Rf5 35. Rg2 Rg6 36. Rfg1 Bxc5 37. Rxg6 hxg6 38. Nxc5 Qxc5 39. Qh3+ Kg7 40. Qxf5 Kh8 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "1"]
[White "Grooten, Herman"]
[Black "Oxener, Aldo"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "2241"]
[BlackElo "1514"]
[PlyCount "65"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. e4 c6 6. Be2 Qc7 7. 0-0 Be7 8. Re1 h6 9. Bf1 Nf8 10. Nh4 g6 11. g3 Ne6 12. Be3 Ng5 13. f3 Nh3+ 14. Kh1 Nh7 15. Ng2 f5 16. dxe5 dxe5 17. exf5 gxf5 18. f4 Nf6 19. fxe5 Ng4 20. Qd2 b6 21. Nf4 Nxe3 22. Qxe3 Bc5 23. Qf3 Nf2+ 24. Kg2 Ng4 25. h3 Ne3+ 26. Rxe3 Bxe3 27. Qxe3 Bd7 28. e6 Bc8 29. Be2 Bb7 30. Bh5+ Kd8 31. Rd1+ Kc8 32. Rd7 c5+ 33. Ncd5 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "8"]
[White "Grooten, Herman"]
[Black "Pham, Khoi"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2241"]
[BlackElo "2334"]
[PlyCount "139"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Nc3 e6 6. Bg2 h6 7. 0-0 Be7 8. b3 0-0 9. Bb2 Nbd7 10. Nd2 Qc7 11. e4 dxe4 12. Ndxe4 Nxe4 13. Nxe4 Nf6 14. Nd2 Rfd8 15. Qe2 c5 16. Nf3 Rd7 17. Rad1 Rad8 18. Ne5 Rd6 19. dxc5 Rxd1 20. Rxd1 Rxd1+ 21. Qxd1 Bxc5 22. Qe2 b6 23. Nc6 a5 24. a3 Qd6 25. Be5 Qf8 26. Bc7 Ng4 27. Bf3 Nxf2 28. b4 Ne4+ 29. Kg2 axb4 30. axb4 Bd6 31. Bxb6 Ng5 32. c5 Bh3+ 33. Kf2 Be7 34. Bh1 Bf6 35. Ne5 Qb8 36. Nd7 Bd4+ 37. Ke1 Qe8 38. Qb5 Kh8 39. c6 Bc3+ 40. Kd1 e5 41. Nc5 e4 42. Qc4 Qxc6 43. Ba5 Qd6+ 44. Kc2 Qd2+ 45. Kb3 Bf6 46. Bxe4 Qb2+ 47. Ka4 Qa1+ 48. Kb5 Nxe4 49. Qxe4 Bf1+ 50. Kc6 Qa2 51. Qe8+ Kh7 52. Qe4+ Kh8 53. Qe8+ Kh7 54. Qe4+ g6 55. Kc7 Kg7 56. Nd7 Bg2 57. Qd3 Bb2 58. Bb6 Qe6 59. Bd4+ Bxd4 60. Qxd4+ Kg8 61. Nf6+ Kf8 62. Qd6+ Kg7 63. Qxe6 fxe6 64. Nd7 Kf7 65. Kd6 g5 66. b5 h5 67. b6 h4 68. Ne5+ Ke8 69. Nc6 hxg3 70. hxg3 1-0

[Event "Helmond Rapid op"]
[Site "Helmond"]
[Date "2023.06.10"]
[Round "4"]
[White "Kevlishvili, Robby"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "C08"]
[WhiteElo "2539"]
[BlackElo "2241"]
[PlyCount "61"]
[EventDate "2023.06.10"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. Be2 Nf6 7. 0-0 Bd6 8. dxc5 Bxc5 9. Nb3 Be7 10. Re1 0-0 11. Bf4 Nc6 12. c3 Bf5 13. Nbd4 Be4 14. Ne5 Nxe5 15. Bxe5 Re8 16. Nf3 Qd7 17. Bd4 Rac8 18. h3 h6 19. a4 Bf5 20. Ne5 Qc7 21. Ng4 Ne4 22. Ne3 Be6 23. Bd3 Bh4 24. Bxe4 dxe4 25. Qh5 Bg5 26. Nf1 f5 27. Ng3 Qf7 28. a5 Rcd8 29. Ra4 Rd7 30. Rb4 Bd5 31. Qxf7+ 1-0

[Event "Eindhoven WLC op 13th"]
[Site "Eindhoven"]
[Date "2023.05.07"]
[Round "6"]
[White "Bosboom, Ardin"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2056"]
[BlackElo "2252"]
[PlyCount "45"]
[EventDate "2023.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 Bb7 6. Nc3 e6 7. e4 axb5 8. Bxb5 Qa5 9. Nge2 Nxe4 10. 0-0 Be7 11. dxe6 fxe6 12. Nxe4 Bxe4 13. Nc3 Bf5 14. Qh5+ Bg6 15. Qe5 Kf7 16. Bg5 Bxg5 17. Qxg5 Qc7 18. Rad1 Rf8 19. h4 h6 20. Qg4 Ra7 21. Bc4 Nc6 22. Nb5 Qc8 23. Nd6+ 1-0

[Event "Eindhoven WLC op 13th"]
[Site "Eindhoven"]
[Date "2023.05.07"]
[Round "5"]
[White "Grooten, Herman"]
[Black "Pathak, Raghav"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "2252"]
[BlackElo "1653"]
[PlyCount "51"]
[EventDate "2023.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. e3 h6 7. Bxf6 Bxf6 8. Qd2 c6 9. h4 dxc4 10. Bxc4 e5 11. Nxe5 Bxe5 12. dxe5 Qe7 13. Qd6 Qe8 14. 0-0-0 Nd7 15. e6 fxe6 16. Bxe6+ Kh8 17. Bxd7 Bxd7 18. Qxd7 Qg6 19. f3 b5 20. Ne4 c5 21. h5 Qb6 22. Rd6 Qa5 23. Rg6 Rg8 24. Nf6 Rad8 25. Rxh6+ gxh6 26. Qh7# 1-0

[Event "Eindhoven WLC op 13th"]
[Site "Eindhoven"]
[Date "2023.05.06"]
[Round "3"]
[White "Wichtrup, Jan Louis"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "2135"]
[BlackElo "2252"]
[PlyCount "108"]
[EventDate "2023.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e5 5. Nb5 d5 6. cxd5 Bc5 7. N5c3 0-0 8. g3 Ng4 9. e3 f5 10. Be2 Nf6 11. Nd2 a6 12. 0-0 b5 13. b3 Nxd5 14. Nxd5 Qxd5 15. Nf3 Qe6 16. Bb2 e4 17. Nd4 Qb6 18. a4 bxa4 19. Bc4+ Kh8 20. Rxa4 Bd7 21. Ra1 Ra7 22. Qh5 Be8 23. Qh3 Bd7 24. Qh4 a5 25. Rab1 Nc6 26. Ne2 Be7 27. Qh5 Bf6 28. Nf4 Ne7 29. Qe2 Bxb2 30. Rxb2 Nc6 31. Kg2 Ne5 32. Rd1 Nf3 33. Ra2 Qh6 34. h4 Qf6 35. h5 g5 36. hxg6 hxg6 37. Rh1+ Kg7 38. Qd1 Qe5 39. Qd5 Qxd5 40. Nxd5 Rb8 41. Rha1 Rh8 42. g4 a4 43. gxf5 gxf5 44. Nb6 Kf6 45. bxa4 Be8 46. Kf1 Rb7 47. a5 Nd2+ 48. Ke2 Nxc4 49. Nxc4 Bb5 50. Rc2 Rc7 51. Rac1 Rhc8 52. Kd2 Rxc4 53. Rxc4 Bxc4 54. Rb1 Rc6 0-1

[Event "Eindhoven WLC op 13th"]
[Site "Eindhoven"]
[Date "2023.05.05"]
[Round "1"]
[White "Weijers, Ralf"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "1929"]
[BlackElo "2252"]
[PlyCount "107"]
[EventDate "2023.05.05"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c5 2. a3 e5 3. Bc4 Nc6 4. Ne2 d6 5. Nbc3 Be6 6. Nd5 a6 7. Nec3 b5 8. Ba2 b4 9. axb4 cxb4 10. Na4 Rb8 11. c3 Nf6 12. d3 Bxd5 13. Bxd5 Nxd5 14. exd5 Ne7 15. c4 Ng6 16. d4 Be7 17. dxe5 Nxe5 18. b3 Bf6 19. Bb2 0-0 20. 0-0 Re8 21. Qd2 Qc8 22. f4 Ng4 23. h3 Bxb2 24. Nxb2 Nf6 25. Rfe1 Ne4 26. Qc2 Qc5+ 27. Kh2 Qd4 28. Rxa6 Nc5 29. Raa1 Qxf4+ 30. Kh1 Rxe1+ 31. Rxe1 Qg3 32. Qe2 h6 33. Qe3 Qg6 34. Na4 Nxa4 35. Qa7 Rf8 36. Qxa4 Qg3 37. Qxb4 f5 38. Rf1 Re8 39. Qb7 g6 40. Qd7 Re2 41. Qd8+ Kf7 42. Qc7+ Re7 43. Qb6 Re2 44. Qc7+ Re7 45. Qb6 h5 46. Rg1 f4 47. Qxd6 Re1 48. Qc7+ Kf6 49. Qb6+ Kg5 50. b4 Re2 51. d6 Kh4 52. d7 f3 53. d8Q+ g5 54. Qbd4+ 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.04.22"]
[Round "9.3"]
[White "Grooten, Herman"]
[Black "Breukelman, Jan"]
[Result "0-1"]
[ECO "D26"]
[WhiteElo "2258"]
[BlackElo "2426"]
[PlyCount "82"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Paul Keres"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. Bxc4 b5 7. Bd3 Nbd7 8. a4 b4 9. Ne4 Bb7 10. Nxf6+ gxf6 11. e4 c5 12. d5 exd5 13. exd5 Qe7+ 14. Be3 Bh6 15. 0-0 Bxe3 16. Re1 Bxf2+ 17. Kxf2 Ne5 18. Nxe5 fxe5 19. Qh5 0-0-0 20. Rxe5 Qf6+ 21. Qf5+ Qxf5+ 22. Bxf5+ Kc7 23. Re7+ Kb8 24. Rc1 Bxd5 25. Rxc5 Rd6 26. g3 Rhd8 27. Ke3 h5 28. a5 h4 29. gxh4 Ba8 30. Rc4 Bc6 31. Rxb4+ Bb5 32. Be4 Rd1 33. Rb3 f5 34. Rb7+ Ka8 35. R7xb5+ fxe4 36. Rb6 Ka7 37. Rc3 Re1+ 38. Kf2 Rdd1 39. Re3 Rf1+ 40. Kg3 Rf5 41. Rxe4 Rg1+ 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.04.01"]
[Round "8.10"]
[White "Mostertman, Xander"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "1930"]
[BlackElo "2258"]
[PlyCount "81"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "De Stukkenjagers"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 g6 5. 0-0 Bg7 6. c3 Nge7 7. d4 cxd4 8. cxd4 Qb6 9. d5 Ne5 10. Nxe5 Bxe5 11. Na3 exd5 12. exd5 Bd4 13. Nc4 Qf6 14. Nd6+ Qxd6 15. Qxd4 f6 16. Bf4 Qb6 17. Qxb6 axb6 18. Rfe1 Kf7 19. d6 Nf5 20. g4 g5 21. gxf5 gxf4 22. Re7+ Kf8 23. Rae1 Rg8 24. Kf1 Ra5 25. Re8+ Kg7 26. Rxg8+ Kxg8 27. Re8+ Kf7 28. Rxc8 f3 29. Bxf3 Rxf5 30. Ke2 Rb5 31. b3 Ke6 32. Rc7 Kxd6 33. Rxb7 Re5+ 34. Kd2 Rf5 35. Ke3 b5 36. Rxd7+ Kc5 37. Rd5+ Rxd5 38. Bxd5 Kxd5 39. a3 Ke5 40. f4+ Kd5 41. a4 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.03.11"]
[Round "7.10"]
[White "Grooten, Herman"]
[Black "Canedo Jr, Jesus"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2258"]
[BlackElo "2003"]
[PlyCount "77"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Charlois Europoort"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. 0-0 Nc6 8. d5 Ne7 9. Kh1 Nh5 10. g3 f5 11. exf5 gxf5 12. Ng5 Nf6 13. f4 h6 14. fxe5 hxg5 15. exf6 Bxf6 16. Bd3 Rf7 17. Be3 Qf8 18. Qd2 Rg7 19. Nb5 Qd8 20. Nd4 c6 21. Nxf5 Nxf5 22. Bxf5 Qe7 23. Bxc8 Rxc8 24. Rae1 Qe4+ 25. Kg1 Rf8 26. Rxf6 Rxf6 27. Bd4 Qg6 28. Bxf6 Qxf6 29. Re8+ Kh7 30. Qd3+ Qg6 31. Qxg6+ Kxg6 32. dxc6 Kf5 33. cxb7 Rxb7 34. b3 Rc7 35. Kf2 g4 36. Rf8+ Kg5 37. Rd8 Rc6 38. Rb8 a6 39. Ke3 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.12.17"]
[Round "5.6"]
[White "Grooten, Herman"]
[Black "Willemze, Thomas"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "2258"]
[BlackElo "2354"]
[PlyCount "58"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 a6 5. cxd5 exd5 6. Bg5 Be6 7. e3 Nbd7 8. Bd3 c6 9. Qc2 Bd6 10. Bh4 Rc8 11. 0-0 Be7 12. Ng5 c5 13. Rad1 c4 14. Bf5 Bxf5 15. Qxf5 g6 16. Qh3 b5 17. e4 Nb6 18. Rfe1 b4 19. e5 Nh5 20. e6 Bxg5 21. exf7+ Kxf7 22. Qe6+ Kg7 23. Bxg5 Qxg5 24. Qxb6 bxc3 25. Qb7+ Kh6 26. bxc3 Rce8 27. h4 Qxh4 28. Qxd5 Rhf8 29. f3 Rxe1+ 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.26"]
[Round "4.3"]
[White "Grooten, Herman"]
[Black "Colijn, Stefan"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2258"]
[BlackElo "2275"]
[PlyCount "83"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 g6 5. Bg2 Bg7 6. Nc3 0-0 7. 0-0 dxc4 8. a4 a5 9. e4 Na6 10. Qe2 Nb4 11. Rd1 Nd3 12. Bg5 Ng4 13. Be3 Nxe3 14. fxe3 e5 15. d5 Qb6 16. Nd2 Qxb2 17. Nxc4 Qxc3 18. Qxd3 Qxd3 19. Rxd3 cxd5 20. Nb6 dxe4 21. Bxe4 Bf5 22. Bxf5 gxf5 23. Rf1 Rfd8 24. Rb3 Ra6 25. Rxf5 Rd6 26. Nc8 Rd7 27. Nb6 Rd6 28. Nc4 Rd1+ 29. Rf1 Rxf1+ 30. Kxf1 Rc6 31. Nxa5 Rc1+ 32. Kg2 Ra1 33. Rb4 b5 34. Rxb5 Rxa4 35. Nc6 f6 36. Kf3 h5 37. Ne7+ Kf7 38. Rb7 e4+ 39. Kg2 Bh6 40. Nf5+ Kg6 41. Nh4+ Kg5 42. Rb5+ 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.05"]
[Round "3.1"]
[White "Van Dael, Siem"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2362"]
[BlackElo "2258"]
[PlyCount "174"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Zuid Limburg"]
[BlackTeam "De Stukkenjagers"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. Qe2 d6 8. f4 Nbd7 9. c4 Be7 10. Nc3 0-0 11. Kh1 b6 12. Bd2 Bb7 13. f5 Nc5 14. Bc2 e5 15. Nf3 b5 16. b4 Ncd7 17. cxb5 d5 18. Rfc1 Bxb4 19. Nxd5 Nxd5 20. exd5 Ba3 21. f6 Bxc1 22. Rxc1 Qd6 23. Bxh7+ Kxh7 24. Ng5+ Kg8 25. fxg7 Kxg7 26. Qg4 Qg6 27. Qxd7 Bc8 28. Qe7 axb5 29. Bb4 Bf5 30. Rc6 Qh5 31. Qf6+ Kg8 32. h3 Qg6 33. Bxf8 Rxf8 34. Qe7 f6 35. Nf3 Be4 36. Qe6+ Kh8 37. Rc8 Rxc8 38. Qxc8+ Kg7 39. Qc7+ Kf8 40. Qd8+ Kf7 41. Qd7+ Kf8 42. Qxb5 Qf5 43. Qb3 Ke8 44. Qb8+ Kd7 45. d6 Ke6 46. Qc7 Qh7 47. Qb6 Qd7 48. Qe3 Bb7 49. Nd4+ Kxd6 50. Nb3 Qb5 51. Qf2 Ke7 52. Kh2 Qd5 53. Qg3 Kf7 54. Nc1 Ba6 55. Qe3 Bc4 56. Nb3 f5 57. Qa7+ Kg6 58. Qb6+ Kg5 59. Qf2 f4 60. Nd2 Bb5 61. Nf3+ Kf5 62. Qh4 Ke6 63. Qh6+ Kd7 64. Qh7+ Kd6 65. Qg6+ Kc5 66. Qc2+ Kd6 67. Qg6+ Qe6 68. Qe4 Bc6 69. Qb4+ Kd7 70. Qd2+ Ke7 71. Qb4+ Kd7 72. Qd2+ Bd5 73. Ng5 Qd6 74. Qc2 Kd8 75. Qd3 Kc7 76. Qc3+ Kb6 77. a3 Kb5 78. Qd3+ Kb6 79. a4 Qc6 80. Qb1+ Ka7 81. a5 e4 82. Qb2 Ka6 83. Qe2+ Kb7 84. Qb2+ Ka6 85. h4 e3 86. Qb6+ Qxb6 87. axb6 e2 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.10.08"]
[Round "2.1"]
[White "Grooten, Herman"]
[Black "Pardo Simon, David"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2258"]
[BlackElo "2460"]
[PlyCount "90"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 f5 5. g3 Nf6 6. Bg2 0-0 7. 0-0 c6 8. Qc2 Qc7 9. Rd1 Na6 10. a3 e5 11. c5 e4 12. cxd6 Qxd6 13. Ne5 Nd5 14. Nxd5 Qxd5 15. Bf4 Be6 16. Rac1 Rfd8 17. e3 Qb3 18. Bf1 Qxc2 19. Rxc2 Bb3 20. Bc4+ Bxc4 21. Nxc4 c5 22. d5 Rd7 23. Rcd2 b5 24. Ne5 Bxe5 25. Bxe5 Re8 26. Bf4 c4 27. d6 Nc5 28. Rd5 Rc8 29. g4 fxg4 30. Re5 a6 31. Re7 Rxe7 32. dxe7 Nd3 33. Rd2 Kf7 34. Bd6 a5 35. Be5 Kxe7 36. Bd4 b4 37. axb4 axb4 38. Kf1 Ra8 39. Ke2 Ra1 40. Rc2 c3 41. Bxc3 bxc3 42. Rxc3 Ra2 43. Rc4 Rxb2+ 44. Kf1 Nxf2 45. Rc7+ Kf6 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.09.17"]
[Round "1.6"]
[White "Grooten, Herman"]
[Black "Galle, Andre"]
[Result "1-0"]
[ECO "E17"]
[WhiteElo "2258"]
[BlackElo "2017"]
[PlyCount "59"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Sas van Gent"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Re1 d6 8. Nbd2 Ne4 9. Qc2 f5 10. Nh4 Bxh4 11. Nxe4 d5 12. Nc3 Be7 13. cxd5 exd5 14. Bf4 c6 15. Bh3 g6 16. Rad1 Nd7 17. f3 Nf6 18. e4 Bc8 19. Bh6 fxe4 20. Bxc8 Rxc8 21. Bxf8 Bxf8 22. fxe4 Bh6 23. e5 Ng4 24. Rd3 c5 25. Qg2 cxd4 26. Qxd5+ Qxd5 27. Nxd5 Rc2 28. e6 Kf8 29. e7+ Ke8 30. Rxd4 1-0

[Event "Geraardsbergen op 37th"]
[Site "Geraardsbergen"]
[Date "2022.08.10"]
[Round "7"]
[White "Dreelinck, Jacob"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2107"]
[BlackElo "2286"]
[PlyCount "41"]
[EventDate "2022.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 a6 6. Bc4 e6 7. 0-0 Nge7 8. Bg5 f6 9. Be3 b5 10. Bb3 Ng6 11. Nd5 exd5 12. exd5 Nce5 13. d6 Bb7 14. Nxe5 Nxe5 15. Re1 Qb8 16. Bc5 Bc6 17. f4 Qb7 18. Qh5+ Kd8 19. fxe5 f5 20. Qxf5 Kc8 21. Rf1 1-0

[Event "Geraardsbergen op 37th"]
[Site "Geraardsbergen"]
[Date "2022.08.07"]
[Round "2"]
[White "Descamps, Stijn"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "1898"]
[BlackElo "2286"]
[PlyCount "133"]
[EventDate "2022.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. e3 Nc6 6. Nf3 cxd4 7. exd4 d5 8. cxd5 Nxd5 9. Be2 0-0 10. 0-0 Re8 11. Rd1 Bf8 12. Bg5 Be7 13. Bxe7 Ncxe7 14. Rac1 Bd7 15. Ng5 Ng6 16. Qd2 Ndf4 17. Nge4 Bc6 18. Bf1 f5 19. Ng3 Qg5 20. b4 Nh4 21. d5 Rad8 22. b5 Bxd5 23. Nxd5 exd5 24. Rc7 b6 25. a4 h5 26. a5 Nhg6 27. Rxa7 h4 28. Qc3 Re5 29. Re1 d4 30. Qc7 Ne6 31. Qf7+ Kh8 32. Rxe5 Nxe5 33. Qxe6 hxg3 34. Qxe5 gxf2+ 35. Kxf2 d3 36. Qe3 Qh4+ 37. Qg3 Qd4+ 38. Qe3 Qh4+ 39. g3 Qxh2+ 40. Ke1 d2+ 41. Kd1 Qh1 42. Qe2 Qd5 43. Qd3 Qg8 44. Qc4 Qh7 45. Qh4 Qxh4 46. gxh4 bxa5 47. Rxa5 Rb8 48. Kxd2 Kh7 49. Ra6 g6 50. Ke3 Kh6 51. Be2 Re8+ 52. Kf3 Kh5 53. Ra4 Rc8 54. Rc4 Ra8 55. Rb4 g5 56. hxg5 Kxg5 57. b6 Kf6 58. b7 Rb8 59. Kf4 Ke6 60. Bf3 Kd6 61. Rc4 Kd7 62. Kxf5 Rf8+ 63. Ke5 Rb8 64. Bg4+ Ke7 65. Bc8 Ke8 66. Kd6 Kd8 67. Rh4 1-0

[Event "Geraardsbergen op 37th"]
[Site "Geraardsbergen"]
[Date "2022.08.07"]
[Round "1"]
[White "Grooten, Herman"]
[Black "Marechal, Georges"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2286"]
[BlackElo "1684"]
[PlyCount "71"]
[EventDate "2022.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 Bg4 6. Ne5 Qa5+ 7. Nc3 Qa6 8. 0-0 e6 9. f4 Be7 10. h3 Bh5 11. g4 Bg6 12. e4 h6 13. Nxg6 fxg6 14. Qc2 0-0 15. e5 Qb6 16. exf6 Qxd4+ 17. Kh1 Qxf6 18. Be3 Nd7 19. Ne4 Qf7 20. Qxc4 e5 21. Qxf7+ Rxf7 22. Rad1 exf4 23. Bxf4 Nb6 24. Bd6 Rd8 25. Bxe7 Rxd1 26. Rxd1 Rxe7 27. Rd8+ Kh7 28. Kh2 Nd5 29. Kg3 Ne3 30. Bf3 g5 31. Nd6 Kg6 32. Rf8 Nf1+ 33. Kf2 Nd2 34. Bd1 Kh7 35. Bc2+ g6 36. Rf6 1-0

[Event "Eindhoven WLC op 12th"]
[Site "Eindhoven"]
[Date "2022.05.15"]
[Round "6"]
[White "Coenen, Eduard"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2030"]
[BlackElo "2286"]
[PlyCount "109"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 0-0 6. Nf3 Nfd7 7. Be2 e5 8. dxe5 dxe5 9. Bh2 Qe7 10. 0-0 a5 11. Na3 Nc5 12. Qc1 Bf5 13. Rd1 Nc6 14. Bb5 Na7 15. Bf1 Rfd8 16. Ne1 h5 17. Nc4 Nc6 18. Rxd8+ Rxd8 19. Nd2 Kh7 20. Bb5 Na7 21. Bf1 a4 22. e4 Bxh3 23. b4 Bh6 24. f4 exf4 25. Ndf3 Bc8 26. bxc5 Qxe4 27. Kh1 Nc6 28. Qc2 Qe7 29. Bg1 Bf5 30. Qxa4 g5 31. Bf2 g4 32. Bh4 f6 33. Nd4 Be4 34. Bd3 Bxd3 35. Nxd3 Nxd4 36. cxd4 Qe3 37. Qc2 Rxd4 38. Nxf4+ Qe4 39. Qxe4+ Rxe4 40. Nxh5 Kg6 41. Nxf6 Rc4 42. Nd7 Bg7 43. Re1 Kf5 44. Bg3 c6 45. Kh2 Ra4 46. Re2 Ra8 47. Nb6 Rh8+ 48. Kg1 Bd4+ 49. Bf2 Be5 50. g3 Rd8 51. Kg2 Rd3 52. Nc4 Bb8 53. Rd2 Rc3 54. Nd6+ Ke6 55. Nxb7 1-0

[Event "Eindhoven WLC op 12th"]
[Site "Eindhoven"]
[Date "2022.05.15"]
[Round "5"]
[White "Grooten, Herman"]
[Black "Klapwijk, Bram"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2286"]
[BlackElo "2245"]
[PlyCount "95"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 e6 5. Bg2 dxc4 6. Ne5 b5 7. a4 Nd5 8. Nc3 b4 9. Ne4 Be7 10. Nxc4 f6 11. 0-0 Na6 12. Qc2 0-0 13. Rd1 Rb8 14. Ned2 b3 15. Nxb3 Nab4 16. Qd2 Ba6 17. Nca5 f5 18. e4 fxe4 19. Bxe4 Qc7 20. Qe1 Bd6 21. Bd2 Rbe8 22. Rac1 Bb7 23. Nxb7 Qxb7 24. Na5 Qc7 25. Nc4 Be7 26. Bb1 Kh8 27. Ne5 a5 28. Qe4 g6 29. Qg4 Bf6 30. Re1 Bg7 31. Qh3 Kg8 32. Re4 Bxe5 33. Rxe5 Qa7 34. Qh4 Qf7 35. Re2 Qf3 36. Qe4 Qb3 37. h4 Nf6 38. Qe3 Qxa4 39. Qg5 Re7 40. h5 Qb3 41. hxg6 hxg6 42. Bf4 Rg7 43. Bd6 Nh7 44. Qxa5 Qf3 45. Bxf8 Nxf8 46. Re3 Qg4 47. Qxb4 Rh7 48. Be4 1-0

[Event "Eindhoven WLC op 12th"]
[Site "Eindhoven"]
[Date "2022.05.14"]
[Round "2"]
[White "Grooten, Herman"]
[Black "Albers, Sasa"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2286"]
[BlackElo "2117"]
[PlyCount "83"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 0-0 5. a3 Be7 6. g3 b6 7. Bg2 Bb7 8. Qc2 d5 9. cxd5 exd5 10. b4 Nbd7 11. Rb1 a6 12. 0-0 Bd6 13. Nh4 g6 14. f3 Be7 15. Bh3 Ne8 16. Ng2 Ndf6 17. Bb2 Bc8 18. Bxc8 Rxc8 19. Qc6 Qd7 20. Rbc1 Nd6 21. Nf4 Rfd8 22. Rfe1 Nb5 23. Nb3 Qxc6 24. Rxc6 Rd6 25. Rc2 g5 26. Nd3 Re6 27. g4 Bd6 28. Bc1 h6 29. Kg2 Kg7 30. h3 Rce8 31. e3 Na7 32. Rce2 Nc6 33. Bb2 R6e7 34. e4 Re6 35. e5 Nh7 36. Rc2 Bf8 37. f4 Nb8 38. Rxc7 Rc6 39. Rc1 Ree6 40. f5 Rxc1 41. Nbxc1 Rc6 42. Rb7 1-0

[Event "Eindhoven WLC op 12th"]
[Site "Eindhoven"]
[Date "2022.05.14"]
[Round "3"]
[White "Van Roon, Sjoerd"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2264"]
[BlackElo "2286"]
[PlyCount "59"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. Nc3 d6 7. Be3 Nbd7 8. g4 h5 9. g5 Ng4 10. g6 Nde5 11. gxf7+ Kxf7 12. Nf3 Nxf3+ 13. Qxf3+ Qf6 14. Qe2 Nxe3 15. fxe3 Qh4+ 16. Kd2 Be7 17. Raf1+ Kg8 18. Rhg1 e5 19. Bc4+ Kh7 20. Rf7 Bg4 21. h3 Raf8 22. hxg4 Rxf7 23. Bxf7 Rf8 24. Rf1 hxg4 25. Qg2 Qh6 26. Nd5 Bh4 27. Qxg4 Bg5 28. Rf3 Qh2+ 29. Kd3 Bh6 30. Bg6+ 1-0

[Event "Eindhoven WLC op 12th"]
[Site "Eindhoven"]
[Date "2022.05.13"]
[Round "1"]
[White "Suranyi, Pal"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "A59"]
[WhiteElo "2013"]
[BlackElo "2286"]
[PlyCount "102"]
[EventDate "2022.05.13"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 d6 8. e4 Bxf1 9. Kxf1 Nbd7 10. g3 Bg7 11. Kg2 0-0 12. a4 Ra6 13. Re1 Qa8 14. Nb5 Rb6 15. Ra3 Ng4 16. Qe2 Qb7 17. Nd2 Ngf6 18. f4 Ne8 19. Nc4 Ra6 20. g4 e6 21. dxe6 fxe6 22. Qf3 Ne5 23. Nxe5 Bxe5 24. h4 Bg7 25. g5 e5 26. Nc3 Nc7 27. Qd3 exf4 28. Rf1 Be5 29. Kf3 Kg7 30. h5 Ne6 31. hxg6 Nxg5+ 32. Ke2 h6 33. Nd5 Ne6 34. Kd1 Ra7 35. a5 Qa6 36. Qxa6 Rxa6 37. b4 Rb8 38. bxc5 dxc5 39. Bxf4 Nxf4 40. Rxf4 Bxf4 41. Nxf4 Rf8 42. Nd3 Rc8 43. Nf4 Re8 44. Rd3 Re7 45. e5 Rxa5 46. e6 Ra4 47. Rd7 Rxd7+ 48. exd7 Rxf4 49. d8Q Rd4+ 50. Qxd4+ cxd4 51. Kd2 h5 0-1

[Event "Geraardsbergen op 36th"]
[Site "Geraardsbergen"]
[Date "2021.08.12"]
[Round "9"]
[White "Van der Stricht, Geert"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "E41"]
[WhiteElo "2380"]
[BlackElo "2250"]
[PlyCount "84"]
[EventDate "2021.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 8. 0-0 0-0 9. Rb1 e5 10. Nd2 b6 11. h3 Bd7 12. f4 exf4 13. Rxf4 g6 14. Rf2 Qe7 15. e4 Kg7 16. Qf3 Rae8 17. Nf1 Ng8 18. Ne3 Be6 19. Qg3 Na5 20. Bd2 f6 21. Nd5 Qd7 22. h4 f5 23. exf5 Bxf5 24. Rbf1 Bxd3 25. Rxf8 Rxf8 26. Rxf8 Kxf8 27. Qxd3 Qf5 28. Qe2 Kf7 29. g4 Qe6 30. Qf3+ Kg7 31. Nf4 Qf6 32. Qe2 Kf7 33. Kg2 Ne7 34. d5 Ke8 35. Ne6 Kd7 36. Bg5 Qe5 37. Qf3 Nxc4 38. Bxe7 Qxd5 39. Qxd5 Ne3+ 40. Kf3 Nxd5 41. Nf8+ Kxe7 42. Nxh7 Nxc3 0-1

[Event "Geraardsbergen op 36th"]
[Site "Geraardsbergen"]
[Date "2021.08.11"]
[Round "7"]
[White "Finkenflugel, Renzo"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2117"]
[BlackElo "2250"]
[PlyCount "66"]
[EventDate "2021.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 Bf5 4. f3 e6 5. g4 Bg6 6. h4 h5 7. g5 Nfd7 8. e3 a6 9. Bd3 Bxd3 10. cxd3 g6 11. Nge2 Bg7 12. Qb3 Ra7 13. e4 dxe4 14. dxe4 0-0 15. 0-0-0 b5 16. Be3 Rb7 17. f4 Re8 18. Rh3 Qc8 19. f5 c5 20. fxg6 fxg6 21. dxc5 Nxc5 22. Bxc5 Qxc5 23. Nf4 Qc6 24. Qb4 Bf8 25. Qd4 b4 26. Nxg6 Bg7 27. e5 bxc3 28. Rxc3 Qg2 29. Rc2 Qf3 30. Rf2 Rc7+ 31. Kb1 Qc6 32. Qd6 Qe4+ 33. Qd3 Rd8 0-1

[Event "Geraardsbergen op 36th"]
[Site "Geraardsbergen"]
[Date "2021.08.11"]
[Round "8"]
[White "Grooten, Herman"]
[Black "Jansen, Bob"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2250"]
[BlackElo "2102"]
[PlyCount "75"]
[EventDate "2021.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Bg7 8. e4 0-0 9. Be2 Re8 10. 0-0 a6 11. a4 Nbd7 12. Re1 Ne5 13. Nf1 Rb8 14. h3 Ned7 15. Qc2 b6 16. Bd2 Bb7 17. Rab1 Qc7 18. b3 Re7 19. f4 Rbe8 20. Bf3 c4 21. b4 Qb8 22. Kh1 Ba8 23. Re2 Rc8 24. Be3 Ne8 25. Qd2 Bb7 26. Bd4 Qa8 27. Ne3 a5 28. b5 Nc5 29. Bxg7 Nxg7 30. Nxc4 Nxe4 31. Nxe4 Rxc4 32. Nf6+ Kf8 33. Nxh7+ Kg8 34. Nf6+ Kf8 35. Rxe7 Kxe7 36. Qe2+ Kxf6 37. Qxc4 Nf5 38. g4 1-0

[Event "Geraardsbergen op 36th"]
[Site "Geraardsbergen"]
[Date "2021.08.10"]
[Round "6"]
[White "Grooten, Herman"]
[Black "Lahaye, Rick"]
[Result "0-1"]
[ECO "D27"]
[WhiteElo "2250"]
[BlackElo "2397"]
[PlyCount "136"]
[EventDate "2021.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. 0-0 a6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 Nc6 10. b3 b5 11. Be2 Bb7 12. Bb2 0-0 13. Ng5 Be7 14. Bf3 Rfd8 15. Kf1 Nd5 16. Nh3 Ncb4 17. Ne4 Rac8 18. Nc3 Nxc3 19. Rxd8+ Rxd8 20. Bxc3 Bxf3 21. gxf3 Nd5 22. Ba5 Rc8 23. e4 Nf6 24. Rd1 Rc2 25. Rd2 Rc1+ 26. Ke2 h6 27. Nf4 Rh1 28. Bc7 Ne8 29. Bb8 Rc1 30. Nd3 Rc8 31. Bf4 f6 32. Ne1 g5 33. Be3 Bd6 34. h3 Kf7 35. Rc2 Rxc2+ 36. Nxc2 h5 37. Nd4 h4 38. Nc6 e5 39. Kd3 Ke6 40. a4 bxa4 41. bxa4 Kd7 42. Na5 Bb4 43. Nc4 Kc6 44. Nb6 Bc5 45. Nd5 Bxe3 46. Nxe3 Kc5 47. Kc3 Ng7 48. Nc2 Nh5 49. Nb4 Nf4 50. Nxa6+ Kd6 51. Nb4 Nxh3 52. Nd5 Nxf2 53. Nxf6 h3 54. Nh5 h2 55. Ng3 h1Q 56. Nxh1 Nxh1 57. a5 Nf2 58. Kd2 Kc5 59. Ke2 Nh3 60. Kf1 Kb5 61. Kg2 Nf4+ 62. Kg3 Kxa5 63. Kg4 Kb5 64. Kf5 Nd3 65. Kxg5 Kc5 66. Kf5 Kd4 67. Kg4 Ke3 68. Kg3 Ne1 0-1

[Event "Geraardsbergen op 36th"]
[Site "Geraardsbergen"]
[Date "2021.08.10"]
[Round "5"]
[White "Grooten, Herman"]
[Black "Luminet, Denis"]
[Result "1-0"]
[ECO "E26"]
[WhiteElo "2250"]
[BlackElo "2137"]
[PlyCount "105"]
[EventDate "2021.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 d6 10. e4 Qd7 11. f4 0-0-0 12. 0-0 Na5 13. Ng3 h5 14. Re1 h4 15. Nf1 h3 16. g3 e5 17. d5 Ba6 18. Ne3 Rde8 19. Qf3 Rh7 20. a4 Kc7 21. Rf1 Qd8 22. Ra2 Bc8 23. f5 Nb3 24. Ba3 Bd7 25. Qd1 Na5 26. Rf3 Rhh8 27. Bc1 Nh7 28. g4 Ng5 29. Rg3 Qf6 30. Nf1 Qh6 31. Nd2 Qh4 32. Bf1 Rh7 33. Nf3 Nxf3+ 34. Qxf3 Reh8 35. g5 Nb3 36. Be3 Qh5 37. Rg4 g6 38. Ra3 Na5 39. Be2 f6 40. Qf2 Nxc4 41. Rg3 Qh4 42. fxg6 Nxa3 43. gxh7 Rxh7 44. gxf6 Rf7 45. Rg7 Qxf2+ 46. Bxf2 Rxf6 47. Bg4 Kb8 48. Bxd7 Nb1 49. Bf5 Nxc3 50. Bh4 Rh6 51. Bg5 Rh8 52. Be7 Kc7 53. Rg6 1-0

[Event "Leiden Noteboom op 80th"]
[Site "Leiden"]
[Date "2020.02.29"]
[Round "2"]
[White "Grooten, Herman"]
[Black "Kuzubov, Yuriy"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2251"]
[BlackElo "2644"]
[PlyCount "58"]
[EventDate "2020.02.28"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Qd2 Qa5 9. Rc1 0-0 10. Nf3 Rd8 11. Be2 cxd4 12. cxd4 Qxd2+ 13. Bxd2 Bg4 14. d5 e6 15. Bc4 exd5 16. Bxd5 Nc6 17. Ng5 Ne5 18. Rc7 Rac8 19. Rxc8 Rxc8 20. f3 Bd7 21. f4 h6 22. fxe5 hxg5 23. Ke2 Bxe5 24. g3 Bb5+ 25. Kf3 b6 26. Bxg5 Rc3+ 27. Kg4 Bd7+ 28. Kh4 Kg7 29. Bd2 Rc8 0-1

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.26"]
[Round "9"]
[White "Vestby Ellingsen, Mads"]
[Black "Grooten, Herman"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2363"]
[BlackElo "2274"]
[PlyCount "138"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qc2 Bb7 6. Bg2 Nc6 7. 0-0 Nb4 8. Qd1 d5 9. a3 Na6 10. cxd5 exd5 11. Nc3 Be7 12. Bg5 0-0 13. Rc1 c6 14. e3 Nc7 15. Ne5 Ne6 16. Bxf6 Bxf6 17. Nd3 Qe7 18. Qd2 Rfd8 19. Rfd1 h5 20. h4 g6 21. Ne2 Ng7 22. Rc2 Nf5 23. Rdc1 a5 24. Nef4 Nd6 25. Rxc6 Bxc6 26. Rxc6 Ne4 27. Qc2 Rd6 28. Rxb6 Rxb6 29. Nxd5 Qe6 30. Nxb6 Rb8 31. Bxe4 Qxb6 32. Bd5 Qd6 33. Nf4 Kf8 34. Qc4 Qd7 35. b3 Rc8 36. Qa6 Rc1+ 37. Kh2 Bd8 38. Qb7 Qxb7 39. Bxb7 Be7 40. a4 Bb4 41. Bd5 Rc2 42. Kg2 Kg7 43. Bc4 f6 44. Nd3 Bd6 45. e4 Bc7 46. d5 Bb8 47. Kf1 Ra2 48. f4 Rd2 49. e5 fxe5 50. fxe5 Rxd3 51. Bxd3 Bxe5 52. Kf2 Bd6 53. Kf3 Kf6 54. Bb5 Kf7 55. g4 hxg4+ 56. Kxg4 Be7 57. Kf4 Bxh4 58. Ke5 Bg3+ 59. Kd4 Bd6 60. Be2 Ke7 61. Bg4 Bb4 62. Kc4 Kd6 63. Be6 g5 64. Kd4 Bc5+ 65. Ke4 Bb4 66. Kf5 Bd2 67. Kg4 Ke5 68. Bf7 Kf6 69. Bg8 Bb4 1/2-1/2

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.25"]
[Round "8"]
[White "Grooten, Herman"]
[Black "Dev, Shah"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2274"]
[BlackElo "2025"]
[PlyCount "88"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 a6 7. Bd3 Bg4 8. Nge2 e6 9. 0-0 Bd6 10. f3 Bh5 11. Rc1 0-0 12. Bg5 Be7 13. f4 Nd7 14. Bxe7 Qxe7 15. Qb3 Rab8 16. Ng3 Nf6 17. f5 Bg4 18. Rce1 Rfd8 19. fxe6 fxe6 20. Rf4 g6 21. Rff1 Bf5 22. Be2 b5 23. Qd1 Na5 24. b3 Rbc8 25. Nxf5 exf5 26. Qd3 Rc6 27. Bf3 Ne4 28. Bxe4 dxe4 29. Qd2 Qb4 30. Nxe4 Qxd2 31. Nxd2 Rc2 32. Nf3 Rxa2 33. Ra1 Rxa1 34. Rxa1 Nxb3 35. Rxa6 f4 36. Ra3 Nc1 37. Ra1 Ne2+ 38. Kf2 Nc3 39. exf4 b4 40. Rc1 Rc8 41. Kf1 Rc4 42. Ke1 b3 43. Nd2 b2 44. Rc2 Rxd4 1/2-1/2

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.24"]
[Round "7"]
[White "Grooten, Herman"]
[Black "Van Foreest, Machteld"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2274"]
[BlackElo "2142"]
[PlyCount "80"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bg5 Be7 7. Qa4+ c6 8. Bxf6 Bxf6 9. cxd5 exd5 10. g3 0-0 11. Bg2 Na6 12. 0-0 Nc7 13. Rfd1 Re8 14. Rac1 Qd6 15. e3 a6 16. Qc2 Nb5 17. Ne2 Qe7 18. Nf4 Nd6 19. Nd3 Ne4 20. Qb3 b5 21. Nc5 Nxc5 22. Rxc5 Qe6 23. Rdc1 Be7 24. R5c2 Bd6 25. Nd2 f5 26. Qd3 a5 27. Nb3 Kh8 28. Qd2 b4 29. Nc5 Bxc5 30. Rxc5 bxa3 31. bxa3 a4 32. Rb1 Reb8 33. Rb6 Ba6 34. Bxd5 Qe7 35. Rcxc6 Bb7 36. Qb2 Qd7 37. Rc5 Ra7 38. Rcb5 Bxd5 39. Rxb8+ Bg8 40. Rf8 Qd5 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.23"]
[Round "6"]
[White "Schoppen, Casper"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2508"]
[BlackElo "2274"]
[PlyCount "79"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Rb1 c4 9. Ne2 Ne7 10. h4 Nbc6 11. h5 h6 12. Qc1 b6 13. Rh3 Bd7 14. Rf3 Rf8 15. g4 0-0-0 16. Bh3 Ng8 17. Rg3 f6 18. f4 Rf7 19. Be3 Kc7 20. Ra1 Nge7 21. Qd1 Kb7 22. Kd2 Rg8 23. Qh1 Rff8 24. Rag1 a5 25. Rb1 f5 26. Rbg1 Be8 27. gxf5 Bxh5 28. Rxg7 Rxg7 29. Rxg7 exf5 30. Ng3 Bf7 31. Nxf5 Bg6 32. Rxg6 Rxf5 33. Rg7 Ka6 34. Qf3 Qxa3 35. Bxf5 Nxf5 36. Qxd5 Qa4 37. Rc7 Nfe7 38. Qd7 Qb5 39. d5 Nxd5 40. Qc8# 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.22"]
[Round "5"]
[White "Grooten, Herman"]
[Black "Stock, Andreas"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2274"]
[BlackElo "2076"]
[PlyCount "99"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 g6 5. cxb5 a6 6. b6 d6 7. Nc3 Bg7 8. e4 0-0 9. h3 Nbd7 10. Bf4 Qxb6 11. Rb1 a5 12. Bc4 Ba6 13. b3 Ne8 14. Bd2 Nc7 15. a4 Rfb8 16. 0-0 Qa7 17. Qc2 Nb6 18. Ne2 Bxc4 19. bxc4 Qa6 20. Rfc1 Nd7 21. h4 Rxb1 22. Rxb1 Nb6 23. Rc1 Nd7 24. Qd3 Rb8 25. Bc3 Bxc3 26. Nxc3 Rb4 27. Nb5 Nxb5 28. cxb5 Qc8 29. Nd4 Ne5 30. Qd1 Kg7 31. f3 h5 32. Nc6 Nxc6 33. dxc6 Qc7 34. Qc2 Qb6 35. Rd1 f6 36. Kh2 Qc7 37. Rd5 Qc8 38. g3 Qe6 39. Rd2 Qc8 40. Rg2 Qe6 41. Qa2 Qc8 42. g4 hxg4 43. Rxg4 f5 44. Rg5 fxe4 45. h5 c4 46. Rxg6+ Kh7 47. Qd2 Qf8 48. Qh6+ Qxh6 49. Rxh6+ Kxh6 50. c7 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.21"]
[Round "4"]
[White "Fehr, Axel"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2045"]
[BlackElo "2274"]
[PlyCount "84"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 b6 4. Nc3 Bb7 5. g3 g6 6. Bg2 Bg7 7. d4 cxd4 8. Nxd4 a6 9. 0-0 Ne7 10. Be3 d6 11. Qe2 Nd7 12. Rfd1 0-0 13. Rac1 Qb8 14. Bg5 Re8 15. Bh3 Nc6 16. Be3 Nf6 17. Bg2 Ne5 18. h3 Qc7 19. b3 Rad8 20. f4 Ned7 21. Ndb5 axb5 22. Nxb5 Qb8 23. Nxd6 e5 24. Nxe8 Rxe8 25. f5 gxf5 26. exf5 e4 27. Bf4 Ne5 28. Kh1 h5 29. Qe3 Bf8 30. Bh6 Nh7 31. Bxf8 Rxf8 32. f6 Nf3 33. Bxf3 exf3 34. Rd5 Bxd5 35. cxd5 Re8 36. Qxf3 Qe5 37. Rf1 Rd8 38. d6 Rxd6 39. Qa8+ Nf8 40. Rc1 Rxf6 41. Qg2 Ne6 42. Qd2 Nd4 0-1

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.21"]
[Round "3"]
[White "Kirchei, Viktoriia"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2051"]
[BlackElo "2274"]
[PlyCount "79"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. Qe2 d6 8. c4 g6 9. Nc3 Bg7 10. Be3 Nbd7 11. f4 0-0 12. a4 Nc5 13. Bc2 e5 14. fxe5 dxe5 15. Nf3 Ne6 16. Nd2 Nf4 17. Qf3 Ng4 18. g3 Nxe3 19. Qxe3 Ne6 20. Nd5 Qd8 21. Nf3 Nd4 22. Nxd4 exd4 23. Qf4 Be6 24. a5 d3 25. Bxd3 Bxb2 26. Ra2 Bd4+ 27. Kh1 Rc8 28. Rb1 Qd7 29. Be2 Bxd5 30. exd5 Bg7 31. Bg4 f5 32. Bf3 Rc5 33. Re2 Rxa5 34. d6 Re8 35. Bd5+ Kh8 36. Rxe8+ Qxe8 37. d7 Qf8 38. Qc7 Rxd5 39. cxd5 Bf6 40. Re1 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.20"]
[Round "2"]
[White "Grooten, Herman"]
[Black "Beerdsen, Thomas"]
[Result "0-1"]
[ECO "E17"]
[WhiteElo "2274"]
[BlackElo "2472"]
[PlyCount "94"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Re1 Na6 8. a3 c5 9. d5 exd5 10. Nh4 Nc7 11. Nc3 Ne4 12. Nxd5 Nxd5 13. cxd5 Bxh4 14. Bxe4 Bf6 15. Qc2 g6 16. Bd2 Re8 17. Bg2 d6 18. Bc3 b5 19. e4 a5 20. Bxf6 Qxf6 21. Qc3 Kg7 22. f4 b4 23. Qd2 Rab8 24. axb4 axb4 25. Bf1 Re7 26. Ra5 Rbe8 27. Bg2 Bc8 28. e5 dxe5 29. d6 Rd7 30. Rxc5 Qxd6 31. Qxb4 Rc7 32. Rc4 Qxb4 33. Rxb4 Rd8 34. fxe5 Rd2 35. Be4 Rc5 36. Bb1 Bh3 37. Rh4 Rg2+ 38. Kh1 Re2 39. Rd1 Rd5 40. Rc1 Bg2+ 41. Kg1 Rdd2 42. Ba2 g5 43. Rg4 Bh3 44. Rxg5+ Kh6 45. Rg8 Rg2+ 46. Kf1 Rxh2+ 47. Ke1 Rhe2# 0-1

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.19"]
[Round "1"]
[White "Ypma, Jord"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "2013"]
[BlackElo "2274"]
[PlyCount "54"]
[EventDate "2019.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d6 5. a3 Bxc3+ 6. Qxc3 Qe7 7. Nf3 b6 8. g3 Bb7 9. Bg2 Nbd7 10. 0-0 0-0 11. b3 c5 12. Bb2 cxd4 13. Nxd4 Bxg2 14. Kxg2 Rfc8 15. e4 Nxe4 16. Qe3 Nef6 17. Rad1 d5 18. cxd5 Nxd5 19. Qf3 Qf6 20. Qe2 Qg6 21. Kg1 Nc5 22. Qc4 h5 23. Nb5 Ne4 24. Qd3 Nf4 25. Qf3 Ng5 26. Qb7 Rab8 27. Qe7 Nfh3+ 0-1

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.10"]
[Round "9"]
[White "Grooten, Herman"]
[Black "Timmermans, Ivo"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2310"]
[BlackElo "2168"]
[PlyCount "43"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 4. 0-0 c6 5. d3 Ngf6 6. h3 Bxf3 7. Bxf3 e5 8. Nd2 Bd6 9. e4 dxe4 10. dxe4 Qe7 11. a4 Bc5 12. c3 a5 13. Kg2 Qe6 14. Be2 0-0 15. Bc4 Qd6 16. Qe2 Rad8 17. Nf3 Nb6 18. Bb3 g6 19. Bh6 Rfe8 20. Ng5 Re7 21. Rad1 Qc7 22. Qf3 1-0

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.09"]
[Round "8"]
[White "Mijnster, Niels"]
[Black "Grooten, Herman"]
[Result "1/2-1/2"]
[ECO "E21"]
[WhiteElo "2139"]
[BlackElo "2310"]
[PlyCount "126"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. g3 Bxc3+ 6. bxc3 Bb7 7. Bg2 d6 8. Ba3 c5 9. 0-0 Nc6 10. Nd2 Qd7 11. Nb3 Ne7 12. Qd3 Bxg2 13. Kxg2 Rc8 14. dxc5 dxc5 15. Qxd7+ Nxd7 16. f4 Nf5 17. Kf3 Nd6 18. Nd2 f5 19. e4 fxe4+ 20. Nxe4 Nxc4 21. Bc1 h6 22. Nd2 Nxd2+ 23. Bxd2 Rd8 24. Be3 Nf6 25. c4 Kd7 26. a4 a5 27. Rad1+ Kc7 28. Bc1 Nd7 29. Bb2 Rhg8 30. Rfe1 Rde8 31. g4 g5 32. fxg5 hxg5 33. Be5+ Kd8 34. Kg3 Rg6 35. Re4 Ke7 36. Bd6+ Kf7 37. Bc7 Re7 38. Re3 Ke8 39. Rd6 Rf6 40. Re4 e5 41. Rxf6 Nxf6 42. Rxe5 Ne4+ 43. Kg2 Rxe5 44. Bxe5 Nd2 45. Bf6 Nxc4 46. Bxg5 Nb2 47. h4 Nxa4 48. h5 Nc3 49. Kf3 Kf7 50. Bd8 a4 51. g5 a3 52. g6+ Kg7 53. Bc7 Nd5 54. Be5+ Kh6 55. Ke4 Ne7 56. Kd3 b5 57. Kc2 Nf5 58. Kb3 b4 59. Bf6 Ng3 60. Be7 Ne4 61. Bf8+ Kxh5 62. g7 c4+ 63. Kxb4 Nf6 1/2-1/2

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.08"]
[Round "7"]
[White "Grooten, Herman"]
[Black "Stange, Sven"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2310"]
[BlackElo "2167"]
[PlyCount "105"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Qa4 Bb7 6. Bg2 c5 7. dxc5 Bxc5 8. Nc3 0-0 9. Bf4 d5 10. Rd1 Qe7 11. 0-0 dxc4 12. Qxc4 Nd5 13. Bg5 Qc7 14. Nxd5 Bxd5 15. Qh4 Nc6 16. a3 Ne7 17. Bf4 Qb7 18. Qh5 a5 19. Bd2 a4 20. Bc3 f6 21. Qh3 Qc8 22. Rc1 e5 23. Qxc8 Raxc8 24. Nd2 Bxg2 25. Kxg2 Nd5 26. Ne4 Be7 27. Rfd1 Rfd8 28. g4 Kf7 29. Kf3 Ke6 30. Rd3 g6 31. Ng3 Nf4 32. Rxd8 Rxd8 33. Be1 f5 34. gxf5+ gxf5 35. Rc6+ Rd6 36. Rxd6+ Bxd6 37. e4 fxe4+ 38. Nxe4 Bc5 39. Bc3 Kf5 40. Ng3+ Ke6 41. Ke4 Bxf2 42. Bxe5 Bxg3 43. hxg3 Nd5 44. Kd4 b5 45. Bg7 b4 46. axb4 Nxb4 47. Bf8 Nd5 48. Bh6 Nf6 49. Kc4 Ne4 50. Bf4 Nf2 51. g4 Nxg4 52. Kb4 Nf2 53. Kxa4 1/2-1/2

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.07"]
[Round "6"]
[White "Zwirs, Jasper"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "C16"]
[WhiteElo "2110"]
[BlackElo "2310"]
[PlyCount "112"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 b6 7. Nf3 Ba6 8. Bxa6 Nxa6 9. 0-0 Qd7 10. a4 Nb8 11. a5 Nbc6 12. axb6 cxb6 13. Nd2 Rc8 14. Nb3 a5 15. Nd2 Na7 16. Nb1 Nb5 17. Bd2 0-0 18. Qe2 Rc7 19. Qd3 Qc6 20. f4 f6 21. Ra2 Nc8 22. Rb2 Nca7 23. Rf3 Qc4 24. Rh3 g6 25. Rg3 Rcf7 26. Be3 Kh8 27. Rh3 f5 28. Bf2 Qxd3 29. cxd3 Rc8 30. Be1 Rc6 31. Re3 Kg8 32. Kf2 Kf8 33. Ree2 h6 34. Ke3 g5 35. h3 Ke8 36. Rf2 Nc7 37. Na3 b5 38. g4 Kd7 39. Nc2 Ra6 40. Na1 a4 41. Rf1 Nc6 42. Nc2 a3 43. Ra2 b4 44. Nxb4 Nxb4 45. cxb4 Nb5 46. Bg3 Ra4 47. gxf5 Rxf5 48. Be1 Rxf4 49. Rxf4 gxf4+ 50. Kxf4 Nxd4 51. Ke3 Nb5 52. d4 Ra8 53. Kd3 Rf8 54. Ke3 Rf1 55. Re2 a2 56. Rxa2 Rxe1+ 0-1

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.06"]
[Round "5"]
[White "Grooten, Herman"]
[Black "Oosting, Robert"]
[Result "1-0"]
[ECO "D80"]
[WhiteElo "2310"]
[BlackElo "1962"]
[PlyCount "49"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. h4 Nxc3 6. bxc3 dxc4 7. e3 Be6 8. Qb1 Bg7 9. Qxb7 Bd5 10. Qb5+ Qd7 11. a4 Qxb5 12. axb5 a6 13. bxa6 Rxa6 14. Rxa6 Nxa6 15. Nf3 c5 16. Nd2 cxd4 17. cxd4 0-0 18. Nxc4 Nb4 19. Nb6 Rb8 20. Nxd5 Nxd5 21. Bd3 Rb3 22. Be4 e5 23. Kd2 Nc3 24. Bc2 Ra3 25. Be7 1-0

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.05"]
[Round "4"]
[White "Volkers, Annemarie"]
[Black "Grooten, Herman"]
[Result "1/2-1/2"]
[ECO "B41"]
[WhiteElo "1966"]
[BlackElo "2310"]
[PlyCount "108"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be2 Bb4 8. Qd3 b6 9. a3 Bxc3+ 10. Qxc3 Nxe4 11. Nb5 axb5 12. Qxg7 Rf8 13. Bh6 Qc5 14. f3 Nf2 15. b4 Qe7 16. Kxf2 bxc4 17. Qxf8+ Qxf8 18. Bxf8 Kxf8 19. Bxc4 Nc6 20. Rhd1 Ke7 21. Bb5 Na7 22. Bd3 Bb7 23. Ke3 h6 24. a4 Rg8 25. g3 d5 26. a5 b5 27. Rdc1 Kd6 28. Rc5 Bc6 29. a6 Bd7 30. f4 f6 31. Bf1 Bc6 32. Ra5 Rb8 33. Ra1 Kc7 34. Bh3 Re8 35. Kd3 Kd6 36. Bf1 Rf8 37. Be2 Rf7 38. Rac1 Rf8 39. Bg4 Bd7 40. Be2 Ra8 41. Ra1 Rb8 42. Kc3 Rb6 43. Bf3 Bc6 44. Be2 e5 45. fxe5+ fxe5 46. Kb3 d4 47. Bg4 Bd5+ 48. Kb2 Bc4 49. Re1 Rxa6 50. Rexe5 Nc6 51. Rh5 Ra2+ 52. Kb1 Nxb4 53. Rc8 Bd3+ 54. Kc1 Ra1+ 1/2-1/2

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.04"]
[Round "3"]
[White "Grooten, Herman"]
[Black "Lukas, Anne"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2310"]
[BlackElo "1842"]
[PlyCount "121"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d6 6. Nc3 Nbd7 7. e4 g6 8. a4 Qxb6 9. a5 Qc7 10. f4 Rb8 11. Bc4 Bg7 12. Nf3 0-0 13. 0-0 Ne8 14. Qe2 Rb4 15. Nd1 Qb8 16. Bd2 Nc7 17. e5 Rb7 18. Re1 Nb5 19. Nf2 Nd4 20. Nxd4 cxd4 21. Nd3 Nc5 22. b4 Nxd3 23. Bxd3 dxe5 24. fxe5 Rd7 25. Bc4 Qa7 26. Qe4 Rc7 27. Rac1 Bf5 28. Qf4 Rfc8 29. Bb3 Rxc1 30. Rxc1 Rxc1+ 31. Bxc1 Qb8 32. Qxd4 Bxe5 33. Qh4 Qa7+ 34. Kh1 Qc7 35. Bd2 Bd6 36. h3 Bc2 37. Bc4 Qb7 38. Qd4 Qc8 39. g4 h5 40. Be2 hxg4 41. hxg4 f6 42. Qc4 Qa8 43. Qxc2 Qxd5+ 44. Kg1 Qd4+ 45. Kf1 Kg7 46. Qd3 Qa1+ 47. Kf2 Qh1 48. Qf3 Qh2+ 49. Kf1 Qe5 50. g5 Qa1+ 51. Kg2 Qe5 52. gxf6+ Kf7 53. fxe7+ Kxe7 54. Qe3 Qxe3 55. Bxe3 Bxb4 56. Bb6 Kd6 57. Bxa6 Kc6 58. Kf3 g5 59. Kg4 Bd2 60. Kf5 Bc1 61. Bc8 1-0

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.04"]
[Round "2"]
[White "Tibke, Jonas"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1937"]
[BlackElo "2310"]
[PlyCount "82"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. Nf3 Nc6 7. Bc4 e6 8. 0-0 Be7 9. Nbd2 Nb6 10. Bb3 dxe5 11. dxe5 Nb4 12. a3 N4d5 13. Ne4 h6 14. Qd3 Bd7 15. Be3 Bc6 16. Rfd1 Nxe3 17. Qxe3 Nd5 18. Qd3 Qa5 19. Nd4 0-0 20. Bc2 Rfd8 21. Nd6 Bxd6 22. Qh7+ Kf8 23. exd6 Rxd6 24. Qh8+ Ke7 25. Qxa8 Qb6 26. Qh8 Nf4 27. Nxc6+ Qxc6 28. Qxg7 Qxc2 29. Rxd6 Kxd6 30. Qd4+ Nd5 31. b4 b6 32. Rd1 Kc6 33. g3 Kb5 34. h3 Ka4 35. Rd3 f5 36. Rf3 a6 37. Qg7 Qe4 38. Qd7+ b5 39. Kg2 Qe5 40. Qc6 Nc7 41. Qb6 Qd5 1-0

[Event "Vlissingen HZ op 23rd"]
[Site "Vlissingen"]
[Date "2019.08.03"]
[Round "1"]
[White "Grooten, Herman"]
[Black "Pang, Khai Jie Ryan"]
[Result "1-0"]
[ECO "A77"]
[WhiteElo "2310"]
[BlackElo "1770"]
[PlyCount "71"]
[EventDate "2019.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Bg7 8. e4 0-0 9. Be2 Re8 10. 0-0 b6 11. a4 Ba6 12. Bb5 Bxb5 13. axb5 Nbd7 14. Ra4 Ne5 15. Qe2 g5 16. Rd1 Nfd7 17. Nf1 Ng6 18. Ng3 Be5 19. Nf5 Qf6 20. Nh6+ Kg7 21. Ng4 Qe7 22. g3 Kh8 23. Nh6 f6 24. Qh5 Nb8 25. Ne2 Qd7 26. f4 gxf4 27. gxf4 Qxb5 28. Ra3 Nd7 29. fxe5 Ndxe5 30. Rh3 Qd7 31. Rf1 Rf8 32. Kh1 Rad8 33. Nf5 Qf7 34. Rg1 b5 35. b3 Ne7 36. Rg7 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2019.07.31"]
[Round "8"]
[White "De Jonge, Boris"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B44"]
[WhiteElo "2059"]
[BlackElo "2310"]
[PlyCount "103"]
[EventDate "2019.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 Bb4 7. Nxc6 dxc6 8. Qxd8+ Kxd8 9. e5 Ng4 10. f4 Bxc3+ 11. bxc3 c5 12. Be2 Nh6 13. a4 a5 14. Be3 b6 15. 0-0-0+ Kc7 16. Bf3 Rb8 17. Kc2 Bd7 18. Kb3 Rhd8 19. Bf2 Bc6 20. Bxc6 Kxc6 21. h3 Kc7 22. Kc2 Rxd1 23. Rxd1 Rd8 24. Rxd8 Kxd8 25. Kd3 f6 26. Ke4 Ke7 27. g4 Nf7 28. Be3 h6 29. h4 g6 30. h5 g5 31. fxg5 hxg5 32. exf6+ Kxf6 33. Bd2 Nd6+ 34. Kd3 e5 35. Bc1 e4+ 36. Ke3 Ke5 37. Ke2 Nf7 38. Bd2 Kf6 39. Ke3 Nd6 40. Bc1 Kg7 41. Ke2 Nxc4 42. Bxg5 Nb2 43. Ke3 Nxa4 44. Kxe4 Nxc3+ 45. Kf5 Nb5 46. Bf6+ Kh6 47. Be5 a4 48. g5+ Kxh5 49. g6 Kh6 50. Kf6 Na7 51. Bf4+ Kh5 52. g7 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2019.07.30"]
[Round "7"]
[White "Grooten, Herman"]
[Black "Van Baar, Esper"]
[Result "0-1"]
[ECO "D48"]
[WhiteElo "2310"]
[BlackElo "2108"]
[PlyCount "64"]
[EventDate "2019.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. Bxc4 b5 7. Bd3 c5 8. a4 b4 9. Ne4 Nbd7 10. dxc5 Bxc5 11. Nxf6+ Nxf6 12. e4 Bb7 13. Qe2 Qb6 14. 0-0 Rd8 15. a5 Qa7 16. Bc2 Bc6 17. Ne5 Bb5 18. Ba4 Bxa4 19. Rxa4 Qb7 20. Bg5 Rd4 21. Bxf6 gxf6 22. Qc2 Qb5 23. Nf3 Rd8 24. b3 Ke7 25. e5 f5 26. Rc1 Rd3 27. Ra2 Rhd8 28. Qb1 Qd7 29. Kf1 Qd5 30. Qa1 Qxb3 31. Ne1 Rd1 32. Rxd1 Rxd1 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2019.07.29"]
[Round "6"]
[White "Baselmans, Sam"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "2064"]
[BlackElo "2310"]
[PlyCount "85"]
[EventDate "2019.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 7. Nh3 Nge7 8. 0-0 0-0 9. f5 f6 10. g4 Nd4 11. Ne2 Nxe2+ 12. Qxe2 g5 13. Be3 Nc6 14. c3 b5 15. Qd2 Rf7 16. Rf3 b4 17. Kh1 bxc3 18. bxc3 h6 19. Ng1 Rb8 20. h4 Rfb7 21. Nh3 Rb2 22. Qc1 Qa5 23. hxg5 Rxa2 24. Rxa2 Qxa2 25. Rf2 Qb1 26. gxh6 Qxc1+ 27. Bxc1 Rb1 28. Rf1 Bf8 29. Be3 Rb3 30. Rg1 Rxc3 31. Bf1 Ba6 32. g5 Bxd3 33. gxf6+ Kh8 34. Bxd3 Rxd3 35. f7 Ne7 36. Rg3 Rxe3 37. Rxe3 Bxh6 38. Rg3 Kh7 39. f6 Ng6 40. Ng5+ Bxg5 41. Rxg5 Nf8 42. Rg8 Ne6 43. Re8 1-0

[Event "Dieren op"]
[Site "Dieren"]
[Date "2019.07.27"]
[Round "5"]
[White "Grooten, Herman"]
[Black "Buckels, Valentin"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2310"]
[BlackElo "2451"]
[PlyCount "84"]
[EventDate "2019.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 a5 5. a3 Be7 6. e4 d5 7. e5 Nfd7 8. Bd3 c5 9. 0-0 Nc6 10. Re1 cxd4 11. Nb3 dxc4 12. Bxc4 Nb6 13. Bd3 Nd5 14. Qc2 Qb6 15. Re4 f5 16. exf6 Nxf6 17. Rh4 e5 18. Bg6+ Kd8 19. Ng5 Rf8 20. Bf7 h6 21. Ne6+ Bxe6 22. Bxe6 Kc7 23. Nd2 Nd7 24. Nc4 Qc5 25. Bxd7 Bxh4 26. Bxc6 bxc6 27. Bd2 Rxf2 28. Qa4 Qd5 29. Bxa5+ Rxa5 30. Qxa5+ Qxa5 31. Nxa5 Rc2 32. b3 e4 33. g3 Bf6 34. Nc4 d3 35. Rd1 Bd4+ 36. Kh1 Rxc4 37. bxc4 e3 38. Rxd3 e2 39. Rxd4 e1Q+ 40. Kg2 Qe2+ 41. Kh3 Qf1+ 42. Kg4 h5+ 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2019.07.26"]
[Round "4"]
[White "Nair, Sanjeev"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2045"]
[BlackElo "2310"]
[PlyCount "142"]
[EventDate "2019.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. 0-0 d6 8. f4 Nbd7 9. Kh1 b5 10. a3 Bb7 11. Qe2 g6 12. f5 e5 13. Ne6 fxe6 14. fxe6 Bg7 15. exd7+ Qxd7 16. a4 b4 17. Na2 a5 18. Bc4 d5 19. Bb5 Bc6 20. exd5 Bxb5 21. Qxe5+ Qe7 22. Qxe7+ Kxe7 23. axb5 Nxd5 24. c4 bxc3 25. Nxc3 Nxc3 26. bxc3 Bxc3 27. Ba3+ Ke6 28. Rac1 Rhc8 29. Rf3 Bb4 30. Rd1 Rc5 31. b6 Rb8 32. Bb2 Rb7 33. g4 Rc8 34. Rf6+ Ke7 35. Rdf1 Ke8 36. g5 Rc2 37. Be5 Be7 38. Rf7 Rxb6 39. Rxh7 Bxg5 40. Bd4 Re6 41. Rb1 Rc1+ 42. Rxc1 Bxc1 43. Ra7 Bd2 44. Kg2 Kd8 45. Kf3 Kc8 46. Bc5 Kb8 47. Rd7 Bb4 48. Bd4 a4 49. Rd5 Kc7 50. Rb5 Be7 51. Ra5 a3 52. h4 Kb7 53. Ra7+ Kc6 54. Ra5 Bb4 55. Ra8 Kd5 56. Ba1 Kc4 57. Kf4 Re1 58. Bf6 Rf1+ 59. Kg5 Rg1+ 60. Kh6 Kb3 61. Ra7 a2 62. Bd4 Rg4 63. Bf6 Be1 64. Rb7+ Rb4 65. Ra7 Bxh4 66. Ba1 Bf2 67. Rd7 Rb6 68. Kg5 Be3+ 69. Kg4 Bc1 70. Rd3+ Kc2 71. Rh3 Rb4+ 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2019.07.25"]
[Round "3"]
[White "Tiwari, Aswani"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2089"]
[BlackElo "2310"]
[PlyCount "100"]
[EventDate "2019.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. g3 g6 6. Bg2 Bg7 7. 0-0 Nge7 8. Re1 b6 9. e5 Qc7 10. Qe2 g5 11. Nxg5 Qxe5 12. Qxe5 Nxe5 13. Nc4 Nxc4 14. dxc4 Bb7 15. cxd5 Bxd5 16. c3 h6 17. Nh3 Bxg2 18. Kxg2 0-0-0 19. Nf4 h5 20. h4 Nf5 21. Kf1 Rd7 22. Ke2 e5 23. Ng2 Rhd8 24. Ne3 Ne7 25. Rd1 Rxd1 26. Nxd1 Kb7 27. Bg5 f6 28. Bd2 e4 29. Ne3 f5 30. Rd1 Kc6 31. Ng2 Ng6 32. Bg5 Rxd1 33. Kxd1 Kd5 34. a4 Be5 35. Kc2 a6 36. Ne3+ Ke6 37. Nc4 Bc7 38. b4 cxb4 39. cxb4 Ne5 40. Nxe5 Bxe5 41. Be3 b5 42. axb5 axb5 43. Kd2 Kd5 44. Ke2 Bd6 45. Bd2 Kd4 46. Be1 Kc4 47. f3 exf3+ 48. Kxf3 Bxb4 49. Bxb4 Kxb4 50. Kf4 Kc4 0-1

[Event "Dieren op"]
[Site "Dieren"]
[Date "2019.07.24"]
[Round "2"]
[White "Grooten, Herman"]
[Black "Beerdsen, Thomas"]
[Result "0-1"]
[ECO "E16"]
[WhiteElo "2310"]
[BlackElo "2497"]
[PlyCount "68"]
[EventDate "2019.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 0-0 5. a3 Be7 6. g3 b6 7. Bg2 Bb7 8. Qc2 d5 9. cxd5 exd5 10. b4 Nbd7 11. Rb1 a5 12. b5 a4 13. 0-0 Bd6 14. Nh4 Re8 15. Nc4 Bf8 16. Bb2 Ne4 17. Ne5 Nxe5 18. dxe5 Bc5 19. e3 Qd7 20. Qd3 Qe6 21. f3 Ng5 22. Nf5 Qg6 23. Rbd1 c6 24. h4 Ne6 25. f4 cxb5 26. h5 Qxh5 27. Bf3 Qg6 28. Kh1 b4 29. Rf2 bxa3 30. Bd4 Bc8 31. e4 Nxd4 32. Nxd4 Qxg3 33. Rh2 Bxd4 34. exd5 Bf5 0-1

[Event "Eindhoven WLC op 10th"]
[Site "Eindhoven"]
[Date "2019.05.26"]
[Round "5"]
[White "De Vries, Leon"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "A63"]
[WhiteElo "1707"]
[BlackElo "2334"]
[PlyCount "64"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 0-0 9. 0-0 a6 10. a4 Nbd7 11. Bf4 Qc7 12. Re1 Re8 13. e4 Ng4 14. Rc1 Nde5 15. Nxe5 Nxe5 16. b3 Bg4 17. f3 Bd7 18. Bf1 Qa5 19. Bd2 b5 20. Kg2 Qb6 21. h3 f5 22. f4 Nf7 23. exf5 gxf5 24. Kh2 Rxe1 25. Bxe1 Re8 26. Bf2 Nh6 27. axb5 Qa5 28. Qh5 axb5 29. Qf3 Qa3 30. Rb1 c4 31. bxc4 b4 32. Qh5 Qxc3 0-1

[Event "Eindhoven WLC op 10th"]
[Site "Eindhoven"]
[Date "2019.05.26"]
[Round "6"]
[White "Grooten, Herman"]
[Black "Van Foreest, Lucas"]
[Result "0-1"]
[ECO "D26"]
[WhiteElo "2334"]
[BlackElo "2528"]
[PlyCount "46"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. Bxc4 b5 7. Bd3 Bb7 8. e4 Nbd7 9. e5 Nd5 10. Ne4 c5 11. Neg5 h6 12. Nxe6 fxe6 13. Bg6+ Ke7 14. 0-0 Qc7 15. Re1 Kd8 16. Bd2 c4 17. Bf7 Nc5 18. Ba5 Qxa5 19. dxc5 Bxc5 20. Bxe6 Kc7 21. Re2 Rad8 22. Rd2 Nf4 23. Rd7+ Kb8 0-1

[Event "Eindhoven WLC op 10th"]
[Site "Eindhoven"]
[Date "2019.05.25"]
[Round "3"]
[White "Grooten, Herman"]
[Black "Bok, Benjamin"]
[Result "0-1"]
[ECO "E01"]
[WhiteElo "2334"]
[BlackElo "2635"]
[PlyCount "86"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. g3 dxc4 6. a4 c5 7. Bg2 Nc6 8. dxc5 Qxd1+ 9. Nxd1 Bxc5 10. Be3 Bb4+ 11. Bd2 Bd7 12. Ne3 Bxd2+ 13. Nxd2 c3 14. bxc3 Ke7 15. a5 Rac8 16. 0-0 Rc7 17. Rfb1 Rhc8 18. c4 Nd8 19. Nb3 Bc6 20. f3 Nd7 21. Kf2 f5 22. Nd4 a6 23. Nxc6+ Nxc6 24. f4 Nd8 25. Bf3 Nc5 26. g4 g6 27. gxf5 gxf5 28. Rg1 Kf6 29. Rab1 Nc6 30. Nd5+ exd5 31. cxd5 Nd4 32. Rb6+ Kf7 33. Bh5+ Kf8 34. Rd1 Ne4+ 35. Kf1 Rc1 36. Rxc1 Rxc1+ 37. Kg2 Rc7 38. Bf3 Rg7+ 39. Kh3 Nc3 40. d6 Ncxe2 41. Bxe2 Nxe2 42. Rb4 Rg4 43. d7 Ng1# 0-1

[Event "Eindhoven WLC op 10th"]
[Site "Eindhoven"]
[Date "2019.05.25"]
[Round "2"]
[White "Grooten, Herman"]
[Black "Van Amerongen, Marleen"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "2334"]
[BlackElo "2151"]
[PlyCount "33"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. a3 a5 7. b3 Ngxe5 8. Bb2 d6 9. Nc3 0-0 10. Be2 f5 11. Nd5 Nxf3+ 12. gxf3 Rf7 13. f4 Qh4 14. Bh5 g6 15. Bf3 Nd8 16. Qd2 c6 17. Qc3 1-0

[Event "Eindhoven WLC op 10th"]
[Site "Eindhoven"]
[Date "2019.05.24"]
[Round "1"]
[White "Achuthan, Dylan"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1840"]
[BlackElo "2334"]
[PlyCount "106"]
[EventDate "2019.05.24"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "NED"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 Nc6 7. 0-0 Be7 8. Na3 cxd4 9. Nb5 Qd8 10. Nbxd4 Nxd4 11. Qxd4 Qxd4 12. Nxd4 a6 13. Bf3 e5 14. Nc6 Bd6 15. Re1 Nd7 16. Na5 Rb8 17. Nc4 Bc7 18. Bf4 f6 19. Rad1 b5 20. Nd6+ Bxd6 21. Rxd6 Ke7 22. Rd2 Nb6 23. Be3 Be6 24. Bc5+ Kf7 25. Bxb6 Rxb6 26. Bd5 Rc8 27. Bxe6+ Kxe6 28. Red1 g5 29. f3 h5 30. a3 a5 31. Rd7 b4 32. cxb4 Rc2 33. R7d2 Rxd2 34. Rxd2 axb4 35. axb4 Rxb4 36. Kf2 g4 37. h3 gxh3 38. gxh3 h4 39. Ke2 Kf5 40. Rc2 Kf4 41. Kf2 f5 42. Kg2 Rb8 43. Kf2 Rb3 44. Rc4+ e4 45. fxe4 Rxb2+ 46. Kf1 fxe4 47. Rc8 Kf3 48. Rf8+ Kg3 49. Re8 Rf2+ 50. Ke1 Rf4 51. Ke2 Kxh3 52. Ke3 Kg3 53. Rg8+ Rg4 0-1

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2019.05.11"]
[Round "9.2"]
[White "Grooten, Herman"]
[Black "Van Foreest, Jorden"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2384"]
[BlackElo "2624"]
[PlyCount "72"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 g6 6. 0-0 Bg7 7. Ne5 Ng4 8. Nf3 0-0 9. Na3 b5 10. h3 Nf6 11. Ne5 Nd5 12. Nc2 Bb7 13. e4 Nb6 14. f4 N8d7 15. Be3 Na4 16. b3 Nab6 17. Qe1 cxb3 18. axb3 c5 19. dxc5 Nxe5 20. fxe5 Nd7 21. e6 Bxa1 22. exd7 Be5 23. Qd2 Bc6 24. Rd1 a5 25. Bh6 Ra7 26. Nd4 Rxd7 27. Nxc6 Rxd2 28. Rxd2 Qc7 29. Bxf8 Kxf8 30. Nxe5 Qxc5+ 31. Kh2 Qxe5 32. Rd5 Qb8 33. Bf1 a4 34. b4 a3 35. Rd2 Qe5 36. Ra2 Qc3 0-1

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2019.04.13"]
[Round "8.4"]
[White "Pijpers, Arthur"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "2465"]
[BlackElo "2384"]
[PlyCount "105"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "De Stukkenjagers"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Bc5 7. Nb3 Be7 8. Qg4 g6 9. Bg5 d6 10. 0-0-0 Bxg5+ 11. Qxg5 Qe7 12. Qd2 Nf6 13. Be2 b5 14. Bf3 e5 15. Qxd6 Qxd6 16. Rxd6 Ke7 17. Rhd1 Ra7 18. Na5 Bd7 19. Rb6 Rc8 20. Rdd6 Be6 21. Rd2 Nfd7 22. Rbd6 b4 23. Na4 Rac7 24. Kb1 Nc6 25. Nxc6+ Rxc6 26. Rxc6 Rxc6 27. Be2 Nf6 28. f3 Nh5 29. a3 a5 30. axb4 axb4 31. Bb5 Rc8 32. c4 f5 33. Nb6 Rc7 34. exf5 gxf5 35. Kc2 Rc5 36. Na4 Rc8 37. Kb3 e4 38. fxe4 fxe4 39. Kxb4 Nf4 40. Rd4 Bf5 41. Nc3 Nd3+ 42. Kb3 Kf6 43. Rd6+ Kg5 44. Nd5 Nc5+ 45. Kb4 Nd3+ 46. Kc3 Ra8 47. Ne3 Bg6 48. g3 Ra1 49. h4+ Kh5 50. Bd7 Nf2 51. c5 Kh6 52. c6 Rc1+ 53. Kd2 1-0

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2019.03.16"]
[Round "7.5"]
[White "Umudova, Nargiz"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2224"]
[BlackElo "2384"]
[PlyCount "87"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Calder HMC"]
[BlackTeam "De Stukkenjagers"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 g6 6. Nc3 Bg7 7. Nf3 Qc7 8. 0-0 Nf6 9. Re1 Nc6 10. Bg5 0-0 11. Qd2 b5 12. Bf4 e5 13. Bg5 Ne7 14. a4 b4 15. Na2 a5 16. c3 b3 17. Nc1 d5 18. Bxf6 Bxf6 19. exd5 Rb8 20. Bb5 Nf5 21. Nd3 e4 22. Rxe4 Nd6 23. Qf4 Bf5 24. Rc4 Qd8 25. Rc6 Nxb5 26. axb5 Bg7 27. Qc4 Re8 28. Nc5 a4 29. h3 Qe7 30. d6 Qe2 31. Qxe2 Rxe2 32. Nxa4 Rxb5 33. Rd1 Rb8 34. d7 Rd8 35. Rc8 Bf6 36. Rxd8+ Bxd8 37. Nd4 Bc2 38. Nxe2 Bxd1 39. Nd4 f5 40. Nc6 Kf7 41. Nxd8+ Ke7 42. Nc6+ Kxd7 43. Nd4 Kd6 44. Kf1 1-0

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2019.02.09"]
[Round "6.4"]
[White "Grooten, Herman"]
[Black "Driessens, Patrick"]
[Result "1/2-1/2"]
[ECO "A44"]
[WhiteElo "2384"]
[BlackElo "2269"]
[PlyCount "124"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Zuid Limburg"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 c5 2. d5 e5 3. e4 d6 4. g3 Be7 5. Bh3 Bxh3 6. Nxh3 Qd7 7. Ng1 f5 8. Nc3 Nf6 9. exf5 Qxf5 10. Nf3 0-0 11. 0-0 Ng4 12. h3 Nh6 13. Kg2 Nf7 14. Qe2 Nd7 15. g4 Qg6 16. Ne4 Nf6 17. Nxf6+ Bxf6 18. Re1 Bg5 19. Qe4 Qf6 20. h4 Bxc1 21. Raxc1 Nh8 22. h5 Qd8 23. Qd3 Nf7 24. Re4 Ng5 25. Nxg5 Qxg5 26. Qe3 Qxe3 27. fxe3 Rf7 28. Rf1 g5 29. Rxf7 Kxf7 30. Ra4 a6 31. c4 Ke7 32. b4 Rc8 33. Kf3 Rc7 34. bxc5 Rxc5 35. Ke4 Kf6 36. Rb4 b5 37. cxb5 axb5 38. a4 bxa4 39. Rxa4 Rb5 40. Ra7 Rb4+ 41. Kd3 Rxg4 42. Rxh7 Ra4 43. Rh6+ Kf5 44. Rxd6 e4+ 45. Ke2 Ra2+ 46. Ke1 Rh2 47. h6 Ke5 48. Rg6 Kxd5 49. Kf1 g4 50. Rg5+ Kc4 51. Rxg4 Rxh6 52. Rxe4+ Kd3 53. Re5 Rh2 54. Re8 Ra2 55. e4 Kd4 56. Ke1 Rh2 57. e5 Kd5 58. Kd1 Rh5 59. e6 Kd6 60. Kd2 Re5 61. Kd3 Rxe6 62. Rxe6+ Kxe6 1/2-1/2

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.30"]
[Round "9"]
[White "Hilwerda, Jonas"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2128"]
[BlackElo "2374"]
[PlyCount "109"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 Bf5 4. Nf3 c5 5. dxc5 Qa5+ 6. Nbd2 Nbd7 7. Nd4 Bg4 8. f3 e5 9. fxg4 exf4 10. exf4 0-0-0 11. Be2 Bxc5 12. c3 Bxd4 13. cxd4 Ne4 14. Qc2+ Kb8 15. Rd1 Rc8 16. Qd3 Nxd2 17. Qxd2 Qxa2 18. 0-0 Qb3 19. Rf3 Qc2 20. Bd3 Qxd2 21. Rxd2 Rhe8 22. g5 g6 23. f5 Re7 24. h4 Rg8 25. Kf2 Kc7 26. Kg3 gxf5 27. Bxf5 h6 28. Rc2+ Kd6 29. Bxd7 Kxd7 30. Rf5 f6 31. Rxf6 hxg5 32. h5 Re3+ 33. Kf2 Re4 34. Rf7+ Ke6 35. Rcc7 Rxd4 36. Rce7+ Kd6 37. Rd7+ Kc5 38. Rc7+ Kb5 39. Rxb7+ Kc4 40. Rbc7+ Kd3 41. h6 Rg6 42. h7 Rh6 43. g3 Rb4 44. Rxa7 Rxb2+ 45. Kf3 Rbh2 46. Kg4 R6h3 47. Rfd7 Kd4 48. Ra5 Ke5 49. Rdxd5+ Ke6 50. Re5+ Kf6 51. Reb5 Ke7 52. Rb6 Kd8 53. Ra7 Kc8 54. Rg6 Kb8 55. Rf7 1-0

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.29"]
[Round "8"]
[White "Grooten, Herman"]
[Black "Jedlicka, Ales"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "2374"]
[BlackElo "2226"]
[PlyCount "166"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 e5 7. d5 a5 8. Bg5 h6 9. Bh4 Na6 10. Nd2 Bd7 11. a3 Qe8 12. b3 h5 13. h3 Nh7 14. f3 Bh6 15. Bf2 Qe7 16. Qc2 h4 17. Nf1 Nc5 18. Rd1 Bf4 19. Nb5 Be8 20. g3 Bg5 21. g4 Bf4 22. Ne3 a4 23. bxa4 Nxa4 24. 0-0 b6 25. Rb1 Nc5 26. Qc3 Bxb5 27. cxb5 Bxe3 28. Qxe3 Ra7 29. Rb4 Rfa8 30. Ra1 g5 31. Bd1 Nf8 32. a4 Ng6 33. Ra3 Nf4 34. Kh2 Qf6 35. Qd2 Kg7 36. Be3 Ra5 37. Bc2 Kg6 38. Qd1 Kg7 39. Bd2 Kg6 40. Rb1 Kg7 41. Qf1 Kg6 42. Rd1 Kh6 43. Be3 Kg7 44. Bf2 Ng6 45. Be3 Nf4 46. Rb1 Kg6 47. Rb2 Kg7 48. Bd1 Nxa4 49. Rba2 Nc5 50. Rxa5 bxa5 51. Qe1 a4 52. Ra3 Ng6 53. Qd2 Kh6 54. Qb4 Nf8 55. Kg2 Nfd7 56. Bxa4 Qd8 57. Bc2 Qb8 58. Ra5 f6 59. Bd1 Kg6 60. Be2 Kf7 61. Qa3 Rxa5 62. Qxa5 Kg6 63. Kf2 Qb7 64. Ke1 Kf7 65. Kd1 Ke7 66. Kc2 Kd8 67. Kc3 Kc8 68. Kb4 Kb8 69. Bc4 Qb6 70. Qa3 Na6+ 71. Ka4 Ndc5+ 72. Bxc5 Nxc5+ 73. Kb4 Nd7 74. Qc3 Qg1 75. Bd3 Nc5 76. Bc2 Kb7 77. Qc4 Qg2 78. b6 cxb6 79. Qc3 Qxh3 80. Ba4 Qf1 81. Bc6+ Kc7 82. Qa3 Qb1+ 83. Kc4 Qb3+ 0-1

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.28"]
[Round "7"]
[White "Krasenkow, Michal"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2630"]
[BlackElo "2374"]
[PlyCount "73"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 0-0 6. a3 a6 7. c5 b6 8. b4 Ne4 9. Qc2 f5 10. e3 bxc5 11. bxc5 g5 12. Bg3 Nd7 13. Nxe4 fxe4 14. Nd2 Bf6 15. c6 Nb6 16. f3 Qe7 17. Qc3 h5 18. h3 h4 19. Bh2 a5 20. Bb5 a4 21. 0-0 exf3 22. Rxf3 Bg7 23. Rxf8+ Bxf8 24. Qd3 Ra5 25. Rf1 Rxb5 26. Qxb5 Qxa3 27. Bxc7 Qxe3+ 28. Kh1 Qxd2 29. Qxb6 e5 30. Bxe5 Qe2 31. Rxf8+ Kxf8 32. Qd8+ Kf7 33. Qc7+ Kg6 34. Qg7+ Kf5 35. Qh7+ Ke6 36. Qg6+ Ke7 37. Bd6+ 1-0

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.27"]
[Round "6"]
[White "Grooten, Herman"]
[Black "Hovsepyan, Vardan"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "2374"]
[BlackElo "2264"]
[PlyCount "131"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 d6 7. Nc3 0-0 8. e3 Nbd7 9. Nge2 e5 10. 0-0 a5 11. Nb5 Ne8 12. c5 Ra6 13. Rac1 e4 14. cxd6 c6 15. Nc7 Nxc7 16. dxc7 Qxc7 17. Nf4 Nf6 18. h4 Qf7 19. Rc5 Qxa2 20. Rfc1 Rb6 21. R5c2 Qa4 22. Bf1 Qb4 23. Ra1 a4 24. Qd1 Bd7 25. Rc4 Qxb2 26. Rcxa4 g6 27. Bc4+ Kh8 28. Ba2 Ng4 29. Ne2 c5 30. Ra7 Ra6 31. Rxa6 bxa6 32. dxc5 Bb5 33. Qd4+ Qxd4 34. Nxd4 Rc8 35. Rc1 Ne5 36. Be6 Re8 37. Nxb5 Rxe6 38. Nd4 Re8 39. c6 Rc8 40. Rc5 Nd3 41. Rd5 Nb4 42. Rd6 Kg8 43. h5 Kf7 44. h6 Rc7 45. g4 fxg4 46. Kg2 a5 47. Kg3 a4 48. Nb5 Rxc6 49. Rd7+ Kf6 50. Rxh7 Kg5 51. Rh8 Rf6 52. Nc3 Rf3+ 53. Kg2 Rf7 54. Nxe4+ Kh4 55. Rb8 Nd3 56. Rb1 Nxf2 57. Nxf2 Kg5 58. Rb5+ Kxh6 59. Nxg4+ Kg7 60. Ra5 Rb7 61. Rxa4 Kf7 62. Ra6 Rb5 63. Kf3 Rf5+ 64. Ke4 Rg5 65. Ne5+ Kg7 66. Rxg6+ 1-0

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.26"]
[Round "5"]
[White "Simet, Martin"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2229"]
[BlackElo "2374"]
[PlyCount "64"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d6 3. e3 Nbd7 4. Nf3 g6 5. h3 Bg7 6. c3 0-0 7. Be2 Qe8 8. Bh2 e5 9. 0-0 Qe7 10. a4 Re8 11. Re1 e4 12. Nfd2 h5 13. Bf1 Nf8 14. c4 Bf5 15. Qb3 a5 16. Nc3 c6 17. Qa3 Rad8 18. Rab1 g5 19. b4 axb4 20. Rxb4 Ng6 21. Reb1 Bc8 22. a5 g4 23. hxg4 Nxg4 24. Be2 Nxh2 25. Kxh2 c5 26. Rb5 cxd4 27. Ncxe4 f5 28. Ng3 Qh4+ 29. Kg1 dxe3 30. Ndf1 exf2+ 31. Kxf2 f4 32. Rxh5 fxg3+ 0-1

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.24"]
[Round "4"]
[White "Grooten, Herman"]
[Black "Barthel, Ansgar"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2374"]
[BlackElo "2096"]
[PlyCount "119"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. c4 e6 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. 0-0 Be7 8. dxc5 Bxc5 9. Bg5 0-0 10. Nc3 d4 11. Bxf6 Qxf6 12. Nd5 Qd8 13. Nd2 Re8 14. Rc1 Bf8 15. Nc4 Bf5 16. a3 Be4 17. Nf4 Bxg2 18. Kxg2 Bd6 19. Nd3 Ne5 20. Ncxe5 Bxe5 21. Qb3 Bf6 22. Rc2 Re7 23. Rfc1 h5 24. Qb5 g6 25. Nb4 Bg7 26. Rd1 Rd7 27. e4 Qe8 28. f3 Rad8 29. Re2 Qe6 30. Nd3 Rc7 31. Nf4 Qc4 32. Qxc4 Rxc4 33. Nd3 Rdc8 34. f4 Rc2 35. Kf3 a5 36. Rdd2 R2c4 37. Re1 b5 38. e5 Rc2 39. Rxc2 Rxc2 40. Re2 Rc6 41. Ke4 Rc4 42. Ne1 Bf8 43. Rc2 Ra4 44. Rc8 b4 45. axb4 Rxb4 46. Nd3 Rb5 47. Kxd4 Kg7 48. Rc7 Kg8 49. Kc4 Rb8 50. b3 Ra8 51. Kb5 Rb8+ 52. Ka4 Rd8 53. Nc5 Rd2 54. Kxa5 Bxc5 55. Rxc5 Rxh2 56. b4 Ra2+ 57. Kb6 Ra3 58. b5 Rxg3 59. Kc7 h4 60. b6 1-0

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.23"]
[Round "3"]
[White "Baselmans, Luuk"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2191"]
[BlackElo "2374"]
[PlyCount "109"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 d6 7. Nc3 Nc6 8. exd6 Bxd6 9. Bd3 Nf4 10. Bxf4 Bxf4 11. 0-0 0-0 12. Qe2 g6 13. Rad1 Nb4 14. Bc4 Re8 15. Rfe1 Bd7 16. Ne5 Bc6 17. a3 Nd5 18. Ne4 Nf6 19. Nxc6 bxc6 20. Nc5 Nd5 21. Qf3 Bc7 22. g3 Rb8 23. b3 Kg7 24. Rc1 Bd6 25. h4 h5 26. b4 Bf8 27. Nb3 Rb6 28. Re2 Kg8 29. Na5 Bh6 30. Rd1 Ne7 31. Qe4 Qd7 32. Nb3 Nd5 33. Rc2 Bg7 34. Re1 Qd6 35. Rec1 Re7 36. Qf3 Re8 37. Rd1 Ne7 38. Bd3 Rd8 39. Be4 e5 40. Na5 f5 41. Bxc6 exd4 42. Qb3+ Kh8 43. Nb7 Rxb7 44. Bxb7 f4 45. Be4 Be5 46. Kg2 Rf8 47. Rdc1 Qd7 48. Rc5 fxg3 49. Rxe5 Rxf2+ 50. Kxg3 Rf6 51. Kg2 d3 52. Qxd3 Qg4+ 53. Qg3 Qe2+ 54. Kh3 Rf2 55. Rc8+ 1-0

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.23"]
[Round "2"]
[White "Grooten, Herman"]
[Black "Kokje, Joris"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "2374"]
[BlackElo "2244"]
[PlyCount "90"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. d5 Ng4 8. h3 Nh6 9. g4 f5 10. gxf5 gxf5 11. Rg1 f4 12. Ng5 Qe7 13. Bf1 Rf6 14. Qh5 Rg6 15. h4 Nd7 16. Bh3 Nf6 17. Qf3 Bxh3 18. Qxh3 Nf7 19. Nf3 Rxg1+ 20. Nxg1 a6 21. Bd2 b5 22. cxb5 axb5 23. b4 Kf8 24. Ke2 Nd8 25. Qd3 Ra3 26. Re1 c6 27. Qc2 cxd5 28. Nxb5 Ra8 29. exd5 Nxd5 30. Qe4 Nb6 31. Nc3 Qe6 32. Nf3 d5 33. Qxh7 e4 34. Ng5 Qg4+ 35. f3 exf3+ 36. Kd3 f2 37. Rf1 Nc6 38. Kc2 Nxb4+ 39. Kb3 Qc8 40. Kb2 Rxa2+ 41. Kb1 Rxd2 42. Qg6 Rb2+ 43. Ka1 Nc2+ 44. Kxb2 Qxc3+ 45. Kc1 Ne3+ 0-1

[Event "Groningen op 56th"]
[Site "Groningen"]
[Date "2018.12.22"]
[Round "1"]
[White "De Groot, Hendrik"]
[Black "Grooten, Herman"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2128"]
[BlackElo "2374"]
[PlyCount "66"]
[EventDate "2018.12.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. 0-0 e6 6. Nc3 Be7 7. b3 a6 8. Bb2 0-0 9. e3 Ra7 10. Qe2 d6 11. Rfd1 Nbd7 12. d4 Qa8 13. d5 exd5 14. cxd5 b5 15. e4 Re8 16. a4 b4 17. Nb1 Bf8 18. Qd3 Nxe4 19. Nbd2 Ndf6 20. Nc4 Bxd5 21. Bxf6 Nxf6 22. Nb6 Be4 23. Nxa8 Bxd3 24. Rxd3 Raxa8 25. Rad1 Ne4 26. Nd2 Nc3 27. Bxa8 Nxd1 28. Bb7 Re1+ 29. Kg2 Nb2 30. Rf3 Rd1 31. Ne4 d5 32. Ng5 f6 33. Ne6 c4 0-1

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2018.12.15"]
[Round "5.4"]
[White "Janssen, Ruud"]
[Black "Grooten, Herman"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2503"]
[BlackElo "2384"]
[PlyCount "53"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "BSG"]
[BlackTeam "De Stukkenjagers"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 b6 4. g3 Bb7 5. Bg2 e6 6. 0-0 Be7 7. Re1 a6 8. e4 d6 9. d4 cxd4 10. Nxd4 Qc7 11. Be3 0-0 12. Rc1 Nbd7 13. f4 Rfe8 14. g4 Nc5 15. Bf2 e5 16. Nf5 Bf8 17. b4 Ne6 18. Nd5 Qb8 19. Nxf6+ gxf6 20. Bh4 Nxf4 21. Bxf6 Re6 22. g5 b5 23. Qg4 bxc4 24. Rf1 h6 25. Rxf4 exf4 26. Nxh6+ Kh7 27. Qf5# 1-0

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2018.11.24"]
[Round "4.2"]
[White "Grooten, Herman"]
[Black "Piceu, Tom"]
[Result "0-1"]
[ECO "D63"]
[WhiteElo "2384"]
[BlackElo "2350"]
[PlyCount "120"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Sas van Gent"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. e3 Nbd7 7. Rc1 a6 8. cxd5 exd5 9. Bd3 c6 10. 0-0 Ne4 11. Bf4 Ndf6 12. Ne5 Bf5 13. Na4 Bg6 14. Be2 Re8 15. f3 Nd6 16. Nc5 Nh5 17. g4 Nxf4 18. exf4 f6 19. Nxg6 hxg6 20. Bd3 f5 21. Qc2 Bf6 22. Qf2 Bh4 23. Qd2 Qf6 24. Nb3 g5 25. fxg5 Qe7 26. f4 fxg4 27. Rc3 Be1 28. Rxe1 Qxe1+ 29. Qxe1 Rxe1+ 30. Kf2 Re4 31. Kg3 Rf8 32. Nc5 Re1 33. Kxg4 Ne4 34. Nxe4 dxe4 35. Bc4+ Kh7 36. f5 e3 37. Kf4 Rd8 38. Ke4 Re8+ 39. Kf3 e2 40. Be6 g6 41. Re3 Kg7 42. f6+ Kf8 43. Kf2 Rh1 44. Kxe2 Rxh2+ 45. Kf3 Rxb2 46. Re5 Rd2 47. Ke3 Rd1 48. Bc4 b5 49. Bd3 Re1+ 50. Kf4 R8xe5 51. dxe5 Kf7 52. a4 Rd1 53. Bc2 Rd4+ 54. Ke3 Rg4 55. Bb3+ Ke8 56. Be6 Rxg5 57. Kd4 bxa4 58. Bc8 a3 59. e6 a2 60. Bd7+ Kd8 0-1

[Event "NED-chT 1819"]
[Site "Netherlands"]
[Date "2018.11.03"]
[Round "3.3"]
[White "Grooten, Herman"]
[Black "Van den Doel, Erik"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2384"]
[BlackElo "2604"]
[PlyCount "120"]
[EventDate "2018.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Charlois Europoort"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Nc3 e6 6. Bg2 Be7 7. 0-0 0-0 8. Nd2 Qb6 9. c5 Qa6 10. b4 b6 11. e4 Bg4 12. Qb3 bxc5 13. bxc5 Nbd7 14. h3 Bh5 15. e5 Ne8 16. Re1 f6 17. Bf1 Qc8 18. f4 g5 19. Ne2 fxe5 20. fxe5 Nc7 21. g4 Bg6 22. Nf3 h6 23. Ng3 Rb8 24. Qe3 Qe8 25. Be2 Qf7 26. Kg2 Qg7 27. Rf1 Rf7 28. a3 Qh7 29. Bd2 Bc2 30. Ba5 Ne8 31. Nd2 Rxf1 32. Rxf1 Ng7 33. Bc7 Re8 34. Bd6 Nf8 35. Qf3 Ng6 36. Qf7+ Kh8 37. Bxe7 Rxe7 38. Qf6 Kg8 39. Ba6 Ne8 40. Qf2 Nf4+ 41. Kh2 Bd3 42. Bxd3 Qxd3 43. Nf3 Rb7 44. h4 Qxa3 45. Nd2 Rb2 46. hxg5 hxg5 47. Rb1 Rxb1 48. Nxb1 Qd3 49. Qb2 Qh7+ 50. Nh5 Nxh5 51. gxh5 Qxh5+ 52. Kg2 Qg4+ 53. Kf2 Qh4+ 54. Kg2 Ng7 55. Nd2 Nh5 56. Nf1 Nf4+ 57. Kg1 Qg4+ 58. Kh1 Qf3+ 59. Kg1 Ne2+ 60. Kh2 Qf2+ 0-1

