[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.04.01"]
[Round "8.4"]
[White "Meng, Roger"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2449"]
[BlackElo "2325"]
[PlyCount "121"]
[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 "Charlois Europoort"]
[BlackTeam "Paul Keres"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 a6 5. cxd5 exd5 6. Bg5 Be6 7. Bxf6 Qxf6 8. Qb3 Ra7 9. g3 Qd8 10. h4 h6 11. Bh3 Bxh3 12. Rxh3 c6 13. Kf1 Be7 14. Kg2 Nd7 15. e4 dxe4 16. Nxe4 Nf6 17. Nxf6+ Bxf6 18. Re1+ Kf8 19. Rhh1 g6 20. Ne5 Bxe5 21. dxe5 b5 22. Rd1 Qe7 23. Rhe1 Kg7 24. e6 Rf8 25. Qc3+ Kh7 26. Qxc6 fxe6 27. Qxe6 Qg7 28. Re2 Rf6 29. Qe4 h5 30. Rd5 Kh8 31. Rd8+ Kh7 32. Rd5 Kh8 33. Qc2 Raf7 34. Re8+ Rf8 35. Rdd8 Qb7+ 36. Kg1 Rxe8 37. Rxe8+ Kh7 38. Qe2 Qg7 39. Qe4 Rf7 40. Re6 Rf6 41. Re5 Kh8 42. Re7 Rf7 43. Qa8+ Kh7 44. Rxf7 Qxf7 45. Qxa6 Qc4 46. Qa7+ Kh8 47. Qb8+ Kh7 48. Qb7+ Kh8 49. b3 Qe2 50. Qc8+ Kh7 51. Qc7+ Kg8 52. Qd8+ Kh7 53. Qd7+ Kg8 54. Qd5+ Kg7 55. a4 bxa4 56. bxa4 Qe1+ 57. Kg2 Qa1 58. a5 Kf6 59. Qc6+ Kf5 60. a6 g5 61. Qd5+ 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.03.11"]
[Round "7.3"]
[White "Bosman, Michiel"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2368"]
[BlackElo "2325"]
[PlyCount "94"]
[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 "Leiden LSG"]
[BlackTeam "Paul Keres"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. Nf3 0-0 6. Nc3 dxc4 7. Ne5 Nc6 8. Bxc6 bxc6 9. Nxc6 Qe8 10. Nxe7+ Qxe7 11. Qa4 Nd5 12. Qxc4 a5 13. Bd2 Ba6 14. Qc5 Qd7 15. f3 Nb4 16. Kf2 e5 17. d5 Qf5 18. Rad1 Rfe8 19. Ne4 Qd7 20. Bxb4 axb4 21. Qxb4 Reb8 22. Qc3 Rb5 23. Nc5 Qd6 24. b4 Rab8 25. a3 Bc8 26. e4 f5 27. exf5 Bxf5 28. Rhe1 Re8 29. Kg1 Rbb8 30. Rd2 Re7 31. Qc4 Kh8 32. Rde2 c6 33. dxc6 Qxc6 34. Rxe5 Rxe5 35. Rxe5 Qxf3 36. Qe2 Qxe2 37. Rxe2 Kg8 38. Kf2 Kf7 39. Ke1 g5 40. Kd2 Bg4 41. Rf2+ Ke7 42. Kc3 Kd6 43. Ne4+ Ke5 44. Nxg5 h5 45. Rf4 Ra8 46. Kb2 Rd8 47. Nf7+ Kd5 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.02.11"]
[Round "6.9"]
[White "Okkes, Menno"]
[Black "Miesen, Fabian"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "2325"]
[BlackElo "2193"]
[PlyCount "50"]
[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 "Paul Keres"]
[BlackTeam "Zuid Limburg"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 e6 5. b3 Bd6 6. d4 0-0 7. Bd3 Nbd7 8. 0-0 b6 9. Bb2 Bb7 10. Re1 Re8 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Nf6 14. Bc2 c5 15. Ne5 Qc7 16. Qe2 Rad8 17. Rad1 cxd4 18. Rxd4 Bxe5 19. Rxd8 Bxh2+ 20. Kh1 Rxd8 21. Bxf6 gxf6 22. Qh5 Be5 23. f4 Bxf4 24. Qxh7+ Kf8 25. Bf5 Qe5 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.12.17"]
[Round "5.4"]
[White "Okkes, Menno"]
[Black "Groffen, Hans"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "2325"]
[BlackElo "2090"]
[PlyCount "43"]
[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 "Paul Keres"]
[BlackTeam "Sas van Gent"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 g6 5. d4 Bg7 6. Be2 0-0 7. 0-0 dxc4 8. Bxc4 Bg4 9. h3 Bxf3 10. Qxf3 Nbd7 11. Rd1 Qc7 12. e4 e5 13. d5 cxd5 14. Bxd5 Rad8 15. Bg5 h6 16. Bxf6 Nxf6 17. Bb3 Qe7 18. Qe3 b6 19. Nd5 Nxd5 20. Rxd5 Rxd5 21. Bxd5 Rc8 22. Rc1 1/2-1/2

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.26"]
[Round "4.7"]
[White "Okkes, Menno"]
[Black "Brenninkmeijer, Joris"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2325"]
[BlackElo "2503"]
[PlyCount "86"]
[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 "Paul Keres"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. 0-0 g6 6. Nc3 Bg7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 Nbd7 10. Be3 Rc8 11. Rac1 0-0 12. Qh4 Re8 13. b3 a6 14. Ne1 Bxg2 15. Nxg2 Qc7 16. Nf4 e6 17. Nd3 Qb7 18. Bh6 Bh8 19. Nb4 a5 20. Nc2 d5 21. Na3 Qa8 22. Nab5 dxc4 23. Nd6 cxb3 24. axb3 Rc5 25. Nxe8 Qxe8 26. Be3 Rc6 27. Ne4 Qa8 28. Rxc6 Qxc6 29. Nxf6+ Bxf6 30. Qc4 Qxc4 31. bxc4 Ne5 32. Bd4 Kg7 33. Rc1 Nf3+ 34. exf3 Bxd4 35. Rc2 Kf6 36. Kf1 Ke5 37. Ke2 Kd6 38. Kd3 Kc5 39. Ra2 Bg7 40. Ra4 Bd4 41. Ra2 Bg7 42. Ra4 Bd4 43. Ra2 e5 1/2-1/2

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.05"]
[Round "3.9"]
[White "Los, Sander"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2255"]
[BlackElo "2325"]
[PlyCount "49"]
[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 "Amstelveen Zukertort"]
[BlackTeam "Paul Keres"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. b3 d4 7. Bb2 c5 8. e3 Nc6 9. exd4 cxd4 10. Re1 Re8 11. Ba3 Bxa3 12. Nxa3 e5 13. d3 Bf5 14. c5 Qa5 15. Nc4 Qxc5 16. Rc1 e4 17. Ne3 Qa5 18. Nxf5 exf3 19. Rxe8+ Rxe8 20. Qxf3 Qxa2 21. Qf4 Qa5 22. Bxc6 bxc6 23. Qg5 Re1+ 24. Kg2 Qd5+ 25. Kh3 1-0

[Event "EU-Cup 37th"]
[Site "Mayrhofen"]
[Date "2022.10.08"]
[Round "6.5"]
[White "Okkes, Menno"]
[Black "Korpa, Bence"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "2328"]
[BlackElo "2496"]
[PlyCount "76"]
[EventDate "2022.10.03"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "AUT"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]
[WhiteTeam "Paul Keres"]
[BlackTeam "Ajka BSK"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "HUN"]

1. Nf3 d5 2. e3 e6 3. c4 g6 4. Nc3 Bg7 5. d4 Ne7 6. Be2 0-0 7. 0-0 Nbc6 8. b3 e5 9. Ba3 Re8 10. Bxe7 Qxe7 11. Nxd5 Qd6 12. dxe5 Nxe5 13. c5 Qd8 14. Rc1 Nxf3+ 15. Bxf3 c6 16. Nc3 Qa5 17. Ne4 Qxa2 18. Nd6 Rd8 19. Bg4 Bxg4 20. Qxg4 Qxb3 21. Rb1 Qe6 22. Qxe6 fxe6 23. Nxb7 Rd5 24. e4 Rd4 25. Na5 Rxe4 26. Rfc1 Rc8 27. Rb7 Re2 28. Rxa7 Bd4 29. Nb3 Bxf2+ 30. Kh1 Rb2 31. Rb7 e5 32. g4 Be3 33. Rd1 Bd4 34. h4 Rf8 35. Rb6 Bxc5 36. Rxc6 Bf2 37. Nd2 Rd8 38. Ra1 Rbxd2 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.10.08"]
[Round "2.5"]
[White "Okkes, Menno"]
[Black "Kuipers, Stefan"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "2325"]
[BlackElo "2441"]
[PlyCount "50"]
[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 "Paul Keres"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 e6 5. b3 Bd6 6. d4 Nbd7 7. Bd3 0-0 8. 0-0 Qe7 9. Qc2 h6 10. Bb2 b6 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Bb7 14. Ne5 Nxe5 15. dxe5 Bc5 16. Rad1 Rfd8 17. Qe2 Rd6 18. Rd2 Rxd2 19. Re1 Rd1 20. Rxd1 Rd8 21. g3 Rd7 22. h4 Qd8 23. Rxd7 Qxd7 24. Qd3 Qxd3 25. Bxd3 Bc8 1/2-1/2

[Event "EU-Cup 37th"]
[Site "Mayrhofen"]
[Date "2022.10.06"]
[Round "4.5"]
[White "Huzman, Alexander"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2535"]
[BlackElo "2328"]
[PlyCount "81"]
[EventDate "2022.10.03"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "AUT"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]
[WhiteTeam "Beer Sheva"]
[BlackTeam "Paul Keres"]
[WhiteTeamCountry "ISR"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. 0-0 0-0 6. c4 c6 7. Qa4 Nfd7 8. cxd5 cxd5 9. Nc3 Nb6 10. Qd1 Nc6 11. Bf4 Be6 12. b3 Qd7 13. Re1 Bh3 14. Bh1 Bg4 15. Ne5 Nxe5 16. dxe5 Rfd8 17. Qd4 Rac8 18. Rac1 Qe6 19. h4 f6 20. exf6 Qxf6 21. Qxf6 Bxf6 22. Bd2 Kg7 23. a4 Rc5 24. e4 dxe4 25. Nxe4 Rxc1 26. Rxc1 Be5 27. Be3 Rd1+ 28. Rxd1 Bxd1 29. Nc5 Nc8 30. Bxb7 Nd6 31. Bd5 a5 32. Bd2 Nf5 33. Bxa5 Nd4 34. Ne6+ Nxe6 35. Bxe6 Bf3 36. Bd2 Kf6 37. Bc4 Bd6 38. a5 e5 39. b4 Ke7 40. b5 Kd7 41. Be3 1-0

[Event "EU-Cup 37th"]
[Site "Mayrhofen"]
[Date "2022.10.04"]
[Round "2.5"]
[White "Okkes, Menno"]
[Black "Libiszewski, Fabien"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "2328"]
[BlackElo "2512"]
[PlyCount "104"]
[EventDate "2022.10.03"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "AUT"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]
[WhiteTeam "Paul Keres"]
[BlackTeam "Viernheim"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Bg4 8. Be3 Bxf3 9. Bxf3 exd4 10. Bxd4 Nc6 11. Be3 Re8 12. Qc2 Nd7 13. Rad1 Bxc3 14. Qxc3 Qf6 15. Qc1 Nc5 16. Bg5 Qe6 17. Rfe1 Ne5 18. Be2 Nxe4 19. Be3 a5 20. f3 Nc5 21. Bf1 Qf5 22. Qc3 b6 23. b3 Re7 24. a3 Rae8 25. b4 axb4 26. axb4 Ne6 27. Bc1 h5 28. Bb2 h4 29. Re3 Qg5 30. Kh1 f5 31. Rde1 Kh7 32. Qc2 Nf4 33. c5 Nd5 34. Rb3 h3 35. cxd6 cxd6 36. Bc1 hxg2+ 37. Bxg2 Qh4 38. Rg1 Nf4 39. Bf1 Ne6 40. Qd1 Qd4 41. Qc2 Rc7 42. Qb1 Rec8 43. Be3 Qh4 44. Bg2 Nd4 45. Bxd4 Qxd4 46. Qb2 Qf4 47. Qf2 Rc1 48. Rb1 Nd3 49. Qxb6 Rxb1 50. Rxb1 Rc1+ 51. Rxc1 Qxc1+ 52. Qg1 Nf2# 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.09.17"]
[Round "1.7"]
[White "Pham, Khoi"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2368"]
[BlackElo "2325"]
[PlyCount "37"]
[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 "Kennemer Combinatie"]
[BlackTeam "Paul Keres"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 0-0 6. 0-0 d6 7. Re1 Ne7 8. d4 Bb6 9. Bg5 Ng6 10. dxe5 dxe5 11. Qxd8 Rxd8 12. Nbd2 h6 13. Bxf6 gxf6 14. Rad1 Be6 15. Bc4 Rd7 16. Bxe6 fxe6 17. Nc4 Rad8 18. Rxd7 Rxd7 19. Nxb6 1/2-1/2

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.26"]
[Round "9"]
[White "Morozov, Nichita"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "D92"]
[WhiteElo "2394"]
[BlackElo "2326"]
[PlyCount "108"]
[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 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 0-0 6. Rc1 Be6 7. Nf3 dxc4 8. Ng5 Bd5 9. e4 h6 10. exd5 hxg5 11. Bxg5 Nxd5 12. Bxc4 Nb6 13. Bb3 Nc6 14. d5 Nd4 15. 0-0 Qd7 16. Re1 Rfe8 17. h4 Rad8 18. h5 gxh5 19. Qxh5 Qf5 20. Qh4 Nxb3 21. axb3 Nxd5 22. Nxd5 Rxd5 23. Bxe7 Rd4 24. Qg3 c6 25. Bd6 Rxe1+ 26. Rxe1 Re4 27. Rd1 Rg4 28. Qh3 Rg5 29. Qxf5 Rxf5 30. Ba3 Rd5 31. Rxd5 cxd5 32. b4 a6 33. Kf1 f5 34. Ke2 Bd4 35. b3 Kf7 36. Bc1 Ke6 37. Be3 Bc3 38. Bd2 Bd4 39. f3 Bf6 40. Kd3 Bg7 41. g4 fxg4 42. fxg4 b5 43. Be3 Kf7 44. Bd4 Bf8 45. Bc3 Kg6 46. Bd2 Bg7 47. Bf4 Bf8 48. Kd4 Bxb4 49. Kxd5 a5 50. Kc6 a4 51. bxa4 bxa4 52. Kb5 Bd6 53. Bxd6 Kg5 54. Kxa4 Kxg4 1/2-1/2

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.25"]
[Round "8"]
[White "Okkes, Menno"]
[Black "Zwirs, Nico"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2326"]
[BlackElo "2421"]
[PlyCount "56"]
[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. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 a6 5. cxd5 exd5 6. Bg5 Be6 7. Bxf6 Qxf6 8. Qb3 b5 9. a4 b4 10. Nxd5 Qd8 11. e4 c6 12. Qe3 cxd5 13. exd5 Qxd5 14. Rc1 Be7 15. Bd3 Qd8 16. Be4 Nd7 17. d5 Rc8 18. dxe6 Rxc1+ 19. Qxc1 fxe6 20. Qb1 Qa5 21. 0-0 Nf6 22. Bd3 0-0 23. Bc4 Kh8 24. Bxe6 Qxa4 25. b3 Qb5 26. Re1 Bd6 27. Qf5 Qxf5 28. Bxf5 a5 1/2-1/2

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.24"]
[Round "7"]
[White "Pruijssers, Roeland"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2550"]
[BlackElo "2326"]
[PlyCount "139"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Qf3 Nbd7 8. 0-0-0 Qc7 9. Qg3 b5 10. a3 Bb7 11. f3 Rc8 12. Bxb5 axb5 13. Ndxb5 Qa5 14. Nxd6+ Bxd6 15. Qxd6 Rc6 16. Qb4 Qxb4 17. axb4 Rc4 18. b5 Ke7 19. Nb1 Rhc8 20. Na3 Ra4 21. Rd4 Rxd4 22. Bxd4 e5 23. Be3 Ne8 24. c4 Nd6 25. b3 f5 26. exf5 Nxf5 27. Re1 Nxe3 28. Rxe3 Ke6 29. Nc2 e4 30. fxe4 Ke5 31. Kb2 Bxe4 32. Kc3 h5 33. Re2 g5 34. Nd4 Nf6 35. Nc6+ Kd6 36. Rd2+ Kc7 37. Nd4 Re8 38. Rf2 Nd7 39. Re2 Nf6 40. g3 Kd6 41. Kb4 Ke5 42. Nc6+ Kf5 43. Na5 Rb8 44. Kc5 Bf3 45. Re3 Ne4+ 46. Kb4 Bg2 47. Nc6 Rb7 48. Re2 Bh1 49. Na5 Rb8 50. Re1 Bg2 51. Nc6 Rb7 52. Rg1 Bh3 53. c5 Nf2 54. Kc4 Kf6 55. Nd4 Ne4 56. b6 Ke5 57. Nc6+ Kf6 58. Nd4 Ke5 59. Nc6+ Kf6 60. Na5 Rb8 61. b7 Be6+ 62. Kb5 Nc3+ 63. Kb6 Rh8 64. Rf1+ Kg6 65. Nc6 Bxb3 66. b8Q Nd5+ 67. Ka7 Rh7+ 68. Ka6 Bc4+ 69. Ka5 Bxf1 70. Qg8+ 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.23"]
[Round "6"]
[White "Kaasen, Tor Fredrik"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "B82"]
[WhiteElo "2415"]
[BlackElo "2326"]
[PlyCount "62"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e6 7. f4 Qc7 8. Qe2 Nbd7 9. g4 Nc5 10. Bd2 b5 11. g5 Nfd7 12. Nd5 exd5 13. exd5+ Be7 14. Nc6 Nb8 15. Ba5 Nxd3+ 16. cxd3 Qd7 17. Kd2 Nxc6 18. dxc6 Qg4 19. Qf2 0-0 20. Bc3 Re8 21. h4 Qf5 22. Rag1 Qd5 23. h5 Bf5 24. Bd4 Rac8 25. h6 Bf8 26. Rc1 Rxc6 27. Rxc6 Qxc6 28. Rg1 Rc8 29. Ke3 Qc2 30. Qxc2 Rxc2 31. Kf3 Rd2 0-1

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.22"]
[Round "5"]
[White "Okkes, Menno"]
[Black "Van Dorp, Folke"]
[Result "1-0"]
[ECO "E99"]
[WhiteElo "2326"]
[BlackElo "2086"]
[PlyCount "83"]
[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. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. f3 f4 12. Bd2 g5 13. Rc1 Nf6 14. c5 Ng6 15. Nb5 Rf7 16. Ba5 b6 17. cxd6 cxd6 18. Be1 h5 19. Qc2 Ne8 20. Nb4 g4 21. Nc6 Qg5 22. Ncxa7 gxf3 23. Bxf3 Bd7 24. Nc6 Bf8 25. Qf2 Rxa2 26. Na3 Rg7 27. Qxb6 Nf6 28. Qb3 Rxa3 29. bxa3 Ng4 30. Nb8 Nh4 31. Nxd7 Nxg2 32. Nxf8 Nxe1 33. Ne6 Qh4 34. Qb8+ Kh7 35. Nf8+ Kh6 36. Qxd6+ Nf6+ 37. Kh1 Nxf3 38. Rxf3 Qg5 39. Rf2 f3 40. Rcf1 Rg6 41. Nxg6 Nxe4 42. Qf8+ 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.21"]
[Round "4"]
[White "Blagojevic, Tijana"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2151"]
[BlackElo "2326"]
[PlyCount "56"]
[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 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Bd3 Ngf6 6. Re1 e5 7. a4 Be7 8. c3 0-0 9. Bc2 b6 10. d4 Bb7 11. Nbd2 Re8 12. Nf1 Bf8 13. d5 g6 14. Bg5 Be7 15. Qd2 Ng4 16. Bxe7 Qxe7 17. h3 Ngf6 18. c4 a5 19. Ra3 Ba6 20. Rc3 Nh5 21. g3 Kh8 22. Ng5 f6 23. Ne6 Nf8 24. Nxf8 Rxf8 25. Bd1 Ng7 26. f4 Rae8 27. Kh2 Bc8 28. Qg2 Bd7 1/2-1/2

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.21"]
[Round "3"]
[White "Okkes, Menno"]
[Black "Elgersma, Simon"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2326"]
[BlackElo "2111"]
[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. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 a6 5. cxd5 exd5 6. Bg5 Be6 7. e3 Nbd7 8. Bd3 h6 9. Bh4 g5 10. Bg3 Nh5 11. Qc2 Nxg3 12. hxg3 Bg7 13. 0-0-0 Qe7 14. Kb1 Nb6 15. Na4 Nxa4 16. Qxa4+ c6 17. Qc2 Qd6 18. Rc1 a5 19. Nd2 Rc8 20. f4 b6 21. Nf3 c5 22. Ba6 Rc7 23. Bb5+ Kf8 24. Ne5 c4 25. Rhf1 Bxe5 26. dxe5 Qc5 27. f5 Bc8 28. a4 Qxe3 29. Rce1 Qd3 30. Qxd3 cxd3 31. Bxd3 Bd7 32. Rc1 Rc5 33. b3 Ke7 34. f6+ Kd8 35. Rxc5 bxc5 36. Rc1 Re8 37. Rxc5 Rxe5 38. Rxa5 Be6 39. Kc2 Re3 40. Ra8+ Kc7 41. a5 d4 42. b4 Bd5 43. Ra7+ Kb8 44. Rd7 Bc6 45. Rxf7 Rxg3 46. b5 Rxg2+ 47. Kc1 Rg1+ 48. Kd2 Rg2+ 49. Ke1 Bd5 50. Rd7 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.20"]
[Round "2"]
[White "Sindarov, Javokhir"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "2513"]
[BlackElo "2326"]
[PlyCount "73"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 Be7 8. Bg2 Nfd7 9. Be3 Nc6 10. h4 Nde5 11. g5 Bd7 12. Nxc6 bxc6 13. b3 c5 14. f4 Nc6 15. Ne2 a5 16. 0-0 h6 17. Qd2 hxg5 18. hxg5 a4 19. f5 Ne5 20. Rad1 Qa5 21. Nc3 axb3 22. axb3 c4 23. b4 Qxb4 24. Rb1 Qa5 25. Bb6 Qa6 26. g6 fxg6 27. fxe6 Bxe6 28. Nd5 Rc8 29. Nxe7 Kxe7 30. Rfd1 Rc6 31. Qg5+ Ke8 32. Qd8+ Kf7 33. Rf1+ Bf5 34. Qxh8 Rxb6 35. exf5 Rxb1 36. Bd5+ Kf6 37. Qd8# 1-0

[Event "Hoogeveen op 23rd"]
[Site "Hoogeveen"]
[Date "2019.10.19"]
[Round "1"]
[White "Okkes, Menno"]
[Black "Van der Veen, Jan"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2326"]
[BlackElo "2043"]
[PlyCount "143"]
[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. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Na6 8. Be3 Ng4 9. Bg5 Qe8 10. h3 h6 11. Bh4 exd4 12. Nd5 g5 13. hxg4 gxh4 14. Nxd4 Qxe4 15. Nf5 Bxf5 16. gxf5 c6 17. Bd3 Qd4 18. f6 Bxf6 19. Ne7+ Kh8 20. Qh5 Bg5 21. Rad1 Nc5 22. Bb1 Qf6 23. Nf5 Bf4 24. g3 Qg5 25. Qxh4 Qxh4 26. Nxh4 Be5 27. b3 Rad8 28. Nf5 h5 29. Kg2 Ne6 30. f4 Bf6 31. Nxd6 Rd7 32. Ne4 Rxd1 33. Rxd1 Rd8 34. Rh1 Kg7 35. Rxh5 Be7 36. Rh1 Nc5 37. Nf2 a5 38. g4 Rd2 39. Kf3 Bf6 40. g5 Bd4 41. Ng4 Ne6 42. Bf5 Nc5 43. Rh7+ Kf8 44. Rh2 Rxh2 45. Nxh2 Ke7 46. Ng4 Bc3 47. Ne3 a4 48. Bc2 axb3 49. axb3 Ne6 50. Nf5+ Kd7 51. Ke4 Ba5 52. Ng3 Bd2 53. Ne2 Ke7 54. Ke5 Be3 55. Bf5 Nc5 56. b4 Na6 57. b5 cxb5 58. cxb5 Nc7 59. Bd3 Ne6 60. Bc4 Nf8 61. Ke4 Bd2 62. Kd3 Ba5 63. Nd4 Ng6 64. Ke4 Bc7 65. f5 Ne5 66. f6+ Ke8 67. Bd5 b6 68. Nf5 Kf8 69. Nh6 Bd6 70. Kf5 Bc7 71. Ke4 Nd7 72. Nxf7 1-0

[Event "Utrecht OKU op 46th"]
[Site "Utrecht"]
[Date "2019.06.02"]
[Round "6"]
[White "Okkes, Menno"]
[Black "Mijnster, Niels"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2320"]
[BlackElo "2064"]
[PlyCount "118"]
[EventDate "2019.05.31"]
[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. Nf3 g6 2. c4 c6 3. Nc3 d5 4. cxd5 cxd5 5. d4 Bg7 6. Bf4 Nf6 7. e3 0-0 8. h3 Nc6 9. Be2 Ne4 10. 0-0 g5 11. Bxg5 Nxg5 12. Nxg5 e5 13. Nf3 e4 14. Nh2 Qg5 15. Kh1 Kh8 16. f4 Qg3 17. Qd2 Ne7 18. Bg4 f5 19. Bd1 Qh4 20. Bb3 Be6 21. Nb5 Rad8 22. Nxa7 Rg8 23. Nb5 Bf6 24. Rg1 Rg3 25. Nc3 Rdg8 26. Ne2 R3g7 27. Qe1 Qh6 28. Qf1 Bh4 29. Rc1 Bg3 30. Rc7 Qh4 31. Nxg3 Rxg3 32. Qf2 Bf7 33. Bd1 Be8 34. a4 Nc6 35. Rxb7 Na5 36. Rb4 Qe7 37. Rb8 Nc4 38. Nf1 R3g7 39. b3 Qc7 40. Rxe8 Rxe8 41. bxc4 dxc4 42. g4 c3 43. gxf5 Rxg1+ 44. Kxg1 Rb8 45. Qh4 Rb2 46. Qf6+ Qg7+ 47. Qxg7+ Kxg7 48. a5 h5 49. a6 h4 50. a7 Ra2 51. Bc2 Rxa7 52. Bxe4 Ra2 53. Nh2 Ra1+ 54. Kg2 Ra2+ 55. Kg1 Ra1+ 56. Nf1 Ra2 57. Bd3 c2 58. Bxc2 Rxc2 59. Nh2 Rc1+ 1/2-1/2

[Event "Utrecht OKU op 46th"]
[Site "Utrecht"]
[Date "2019.06.02"]
[Round "5"]
[White "Schouten, Jordy"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2094"]
[BlackElo "2320"]
[PlyCount "62"]
[EventDate "2019.05.31"]
[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. Bg5 d5 3. Bxf6 gxf6 4. c4 c5 5. cxd5 Qxd5 6. Nf3 cxd4 7. Nc3 Qa5 8. Nxd4 Bg7 9. e3 0-0 10. Bd3 Nc6 11. Nb3 Qg5 12. h4 Qxg2 13. Qh5 f5 14. 0-0-0 Qg4 15. Qg5 Qxg5 16. hxg5 Be6 17. Nc5 Ne5 18. Nxe6 fxe6 19. Bc2 Rfd8 20. f4 Nc4 21. Bb3 Rxd1+ 22. Rxd1 Rc8 23. Rd7 Kf7 24. Rxb7 Na5 25. Rb5 Nxb3+ 26. Rxb3 e5 27. Kd2 Rc7 28. Rb5 Kg6 29. Ne2 Rd7+ 30. Kc2 e4 31. a4 Rd3 1/2-1/2

[Event "Utrecht OKU op 46th"]
[Site "Utrecht"]
[Date "2019.06.01"]
[Round "2"]
[White "Ghebreab, Elnathan"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1886"]
[BlackElo "2320"]
[PlyCount "64"]
[EventDate "2019.05.31"]
[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. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. 0-0 Nge7 7. Qe1 0-0 8. d3 Nd4 9. Bb3 d6 10. Be3 Nec6 11. Qf2 b6 12. Ba4 Nxf3+ 13. Qxf3 Nd4 14. Qf2 Bb7 15. Rab1 a6 16. Ne2 Nxe2+ 17. Qxe2 d5 18. b4 cxb4 19. Rxb4 b5 20. Bc5 Qc7 21. Bxf8 Bxf8 22. Rb2 bxa4 23. Rfb1 Bc6 24. f5 dxe4 25. fxe6 fxe6 26. Kh1 Qe5 27. dxe4 Bd6 28. g3 Bxe4+ 29. Kg1 Bc5+ 30. Kf1 Rf8+ 31. Ke1 Qc3+ 32. Qd2 Rf1+ 0-1

[Event "Utrecht OKU op 46th"]
[Site "Utrecht"]
[Date "2019.06.01"]
[Round "3"]
[White "Okkes, Menno"]
[Black "Meng, Roger"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2320"]
[BlackElo "2443"]
[PlyCount "72"]
[EventDate "2019.05.31"]
[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. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nd7 5. 0-0 Ngf6 6. c4 dxc4 7. Na3 Nb6 8. Nxc4 0-0 9. Nce5 c6 10. b3 a5 11. Bb2 a4 12. e3 Bf5 13. Qe2 Be4 14. Rfc1 Nfd5 15. Ba3 Qc7 16. b4 Bxe5 17. Nxe5 Bxg2 18. Kxg2 Qd6 19. Qd3 Nd7 20. Nc4 Qe6 21. Na5 Rab8 22. b5 cxb5 23. Qxb5 Qe4+ 24. Kg1 Nxe3 25. fxe3 Qxe3+ 26. Kf1 Qxa3 27. Qxd7 Qd3+ 28. Kg1 Qe3+ 29. Kh1 Rfd8 30. Qh3 Rxd4 31. Qg2 Qg5 32. Nxb7 Rd2 33. Qf3 Rb2 34. Nc5 Qd2 35. Kg1 Rxa2 36. Ne4 Qd4+ 0-1

[Event "Hoogeveen op 21st"]
[Site "Hoogeveen"]
[Date "2017.10.28"]
[Round "9"]
[White "Kuljasevic, Davorin"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "E66"]
[WhiteElo "2549"]
[BlackElo "2332"]
[PlyCount "69"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c5 5. Bg2 0-0 6. Nc3 Nc6 7. d5 Na5 8. Nd2 d6 9. 0-0 a6 10. Qc2 Rb8 11. b3 b5 12. Rb1 e5 13. cxb5 axb5 14. b4 cxb4 15. Rxb4 Bd7 16. Ba3 Qc7 17. Qd3 e4 18. Ncxe4 Nxe4 19. Bxe4 Nb7 20. Bb2 Nc5 21. Qc2 Qa5 22. a3 Ra8 23. Bxg7 Kxg7 24. Qb2+ f6 25. Ra1 Rfc8 26. Bf3 Qd8 27. h4 Ra4 28. Rc1 Qe7 29. Nb3 Qe5 30. Qxe5 fxe5 31. Nxc5 dxc5 32. Rxa4 bxa4 33. Rb1 Kf8 34. Rb7 Ke8 35. Rxd7 1-0

[Event "Hoogeveen op 21st"]
[Site "Hoogeveen"]
[Date "2017.10.27"]
[Round "8"]
[White "Okkes, Menno"]
[Black "Colbow, Collin"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2332"]
[BlackElo "1945"]
[PlyCount "37"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. 0-0 Be7 5. d4 0-0 6. c4 c5 7. cxd5 exd5 8. dxc5 Bxc5 9. a3 Nc6 10. b4 Bb6 11. Bb2 Be6 12. Nc3 Qe7 13. Na4 Bc7 14. Nc5 Nd8 15. Qc2 Rc8 16. Ng5 Re8 17. Bxf6 Qxf6 18. Qxh7+ Kf8 19. Ngxe6+ 1-0

[Event "Hoogeveen op 21st"]
[Site "Hoogeveen"]
[Date "2017.10.26"]
[Round "7"]
[White "Schoppen, Casper"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "2440"]
[BlackElo "2332"]
[PlyCount "95"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. 0-0 0-0 10. Qd2 a5 11. Rb1 a4 12. b3 axb3 13. axb3 Be6 14. Qe3 Nd7 15. Nd5 Ra2 16. Nb4 Ra8 17. Nd5 Nc5 18. b4 Na4 19. Bd2 Re8 20. Qb3 Bd7 21. Rfc1 Bc6 22. Qc2 e6 23. Ne3 b6 24. f3 Qd7 25. Rb3 b5 26. cxb5 Bxb5 27. Bxb5 Qxb5 28. Qd3 Qb6 29. Kh1 Rec8 30. Nc4 Qb5 31. Na5 Rxc1+ 32. Bxc1 Rc8 33. Bd2 Qe5 34. Rb1 Qd4 35. Qxd4 Bxd4 36. Nb3 Bb2 37. Kg1 Kf8 38. Kf1 Ke8 39. Ke2 Kd7 40. Kd3 h5 41. Nc1 e5 42. Ne2 Ke6 43. Bc1 Bxc1 44. Rxc1 Nb2+ 45. Kd2 Nc4+ 46. Kd3 Nb2+ 47. Kd2 Nc4+ 48. Kd3 1/2-1/2

[Event "Hoogeveen op 21st"]
[Site "Hoogeveen"]
[Date "2017.10.25"]
[Round "6"]
[White "Okkes, Menno"]
[Black "Boer, Alef"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2332"]
[BlackElo "2107"]
[PlyCount "67"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. 0-0 Bg4 5. c4 e6 6. d3 dxc4 7. dxc4 Qxd1 8. Rxd1 Nbd7 9. Bf4 h6 10. Nc3 Bb4 11. Na4 g5 12. Be3 Be7 13. Rac1 e5 14. h3 Be6 15. Nd2 g4 16. h4 Rc8 17. Nb3 b6 18. Nd2 Kf8 19. Nc3 Bc5 20. Bxc5+ Nxc5 21. b4 Ncd7 22. Nde4 Nxe4 23. Nxe4 f5 24. Nd6 Rc7 25. c5 bxc5 26. bxc5 Ke7 27. Nc4 e4 28. f3 exf3 29. exf3 Rb8 30. fxg4 fxg4 31. Na5 Rb5 32. Nxc6+ Kf6 33. Rf1+ Kg7 34. Nd4 1-0

[Event "Hoogeveen op 21st"]
[Site "Hoogeveen"]
[Date "2017.10.24"]
[Round "5"]
[White "Pajeken, Jakob Leon"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "2203"]
[BlackElo "2332"]
[PlyCount "107"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Be3 0-0 10. Qd2 a5 11. Rd1 a4 12. c5 Qa5 13. cxd6 exd6 14. 0-0 a3 15. b3 Be6 16. f3 Ng4 17. Bd4 Bxd4+ 18. Qxd4 Ne5 19. f4 Rac8 20. Rc1 Nc6 21. Qd2 Qc5+ 22. Kh1 Qd4 23. Qe1 Nb4 24. f5 Bd7 25. Bc4 b5 26. Nxb5 Bxb5 27. Qxb4 Bxc4 28. bxc4 Qxe4 29. fxg6 hxg6 30. Qxd6 Rxc4 31. Qxa3 Rxc1 32. Rxc1 Ra8 33. Qb2 Qa4 34. h3 Kh7 35. Rc2 Re8 36. Rf2 Kg8 37. Kh2 Qa7 38. Qf6 Re6 39. Qf4 Re1 40. Qd2 Qb8+ 41. g3 Rb1 42. Qd5 Qa7 43. Qd8+ Kg7 44. Qf6+ Kg8 45. a4 Qb7 46. Rg2 Qe4 47. Qd8+ Kg7 48. Qh4 Qxh4 49. gxh4 Ra1 50. Rg4 f5 51. Rb4 Kh6 52. Rf4 Ra3 53. Kg2 Kh5 54. Rb4 1/2-1/2

[Event "Hoogeveen op 21st"]
[Site "Hoogeveen"]
[Date "2017.10.23"]
[Round "3"]
[White "Okkes, Menno"]
[Black "Sparenberg, Erik"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2332"]
[BlackElo "2175"]
[PlyCount "97"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. 0-0 Bg4 5. c4 e6 6. d3 dxc4 7. dxc4 Qxd1 8. Rxd1 Nbd7 9. Bf4 Be7 10. Nc3 Rd8 11. h3 Bh5 12. g4 Bg6 13. Nh4 Nb6 14. Nxg6 hxg6 15. b3 0-0 16. a4 Na8 17. a5 a6 18. Na2 Rxd1+ 19. Rxd1 Rd8 20. Rxd8+ Bxd8 21. b4 Nc7 22. Nc3 Nce8 23. Ne4 Nxe4 24. Bxe4 Bc7 25. Bd2 Nd6 26. Bd3 Kf8 27. Kg2 Bd8 28. f4 Bf6 29. e4 Bd4 30. e5 Ne8 31. b5 axb5 32. cxb5 cxb5 33. Bb4+ Kg8 34. Be4 Nc7 35. Bxb7 f6 36. Bd6 Nd5 37. Kf3 b4 38. Bxd5 exd5 39. Bxb4 fxe5 40. fxe5 Kf7 41. Ke2 Ke6 42. Kd3 Bxe5 43. a6 Bb8 44. Bc5 Kf6 45. a7 Bxa7 46. Bxa7 Kg5 47. Be3+ Kh4 48. g5 Kxh3 49. Kd4 1-0

[Event "Hoogeveen op 21st"]
[Site "Hoogeveen"]
[Date "2017.10.22"]
[Round "2"]
[White "De Jongh, Benno"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1919"]
[BlackElo "2332"]
[PlyCount "64"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 e6 6. c4 dxc4 7. Qxd8+ Kxd8 8. Na3 Bxc5 9. 0-0-0+ Ke7 10. Nxc4 Nc6 11. Ne2 Bd7 12. Nc3 Rac8 13. Kb1 Ne5 14. Nxe5 fxe5 15. Ne4 Bb4 16. Be2 Bc6 17. Bf3 f5 18. Nd2 e4 19. Be2 Bd5 20. Nb3 Rhg8 21. g3 Bxb3 22. axb3 Rgd8 23. h4 Bd2 24. g4 Ba5 25. g5 Rxd1+ 26. Rxd1 Rd8 27. Kc2 Rxd1 28. Kxd1 Bc7 29. Bh5 Be5 30. Kc2 Bh2 31. Kd2 Be5 32. Kc2 Bh2 1/2-1/2

[Event "Hoogeveen op 21st"]
[Site "Hoogeveen"]
[Date "2017.10.21"]
[Round "1"]
[White "Okkes, Menno"]
[Black "Henseler, Jorgen"]
[Result "1/2-1/2"]
[ECO "E69"]
[WhiteElo "2332"]
[BlackElo "2026"]
[PlyCount "35"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 0-0 5. d4 d6 6. 0-0 Nbd7 7. Nc3 e5 8. h3 c6 9. e4 Qb6 10. Re1 exd4 11. Nxd4 Re8 12. Re2 Ng4 13. Nb3 Nge5 14. Be3 Qc7 15. Nd2 Nb6 16. Rc1 Nd3 17. Rb1 Nxb2 18. Qb3 1/2-1/2

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.22"]
[Round "9"]
[White "Vereggen, Lars"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "B36"]
[WhiteElo "2380"]
[BlackElo "2322"]
[PlyCount "91"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Be3 0-0 10. Qd2 a5 11. 0-0 a4 12. Rfd1 Qa5 13. f3 Be6 14. Rac1 Rfc8 15. Nb5 Qxd2 16. Rxd2 Nd7 17. Nd4 Nc5 18. Nxe6 fxe6 19. Rb1 Kf7 20. Kf2 a3 21. b4 Na4 22. Rb3 Bb2 23. Rc2 d5 24. exd5 exd5 25. c5 d4 26. Bc4+ Kf6 27. Bd2 Nc3 28. Bxc3 dxc3 29. Bd5 Rc7 30. Ke3 e6 31. Be4 Ke7 32. Rcxc3 Bxc3 33. Rxc3 Ra4 34. Rb3 Kd8 35. Kd4 Rd7+ 36. Kc3 Kc7 37. Rb1 Ra8 38. Re1 Rad8 39. Re2 Rd1 40. Bc2 Rg1 41. Kb3 Rh1 42. h3 Rh2 43. Kxa3 Rd5 44. Rxe6 Rxg2 45. Be4 Rd7 46. b5 1-0

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.21"]
[Round "8"]
[White "Okkes, Menno"]
[Black "Rathnakaran, Kantholi"]
[Result "1-0"]
[ECO "E99"]
[WhiteElo "2322"]
[BlackElo "2469"]
[PlyCount "139"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Rc1 Rf6 14. c5 dxc5 15. Nd3 c4 16. Nc5 Nb6 17. a4 a5 18. Nb5 Bf8 19. Ne6 Bxe6 20. dxe6 Rxe6 21. Rxc4 Rc6 22. Rxc6 Nxc6 23. Qb3+ Kg7 24. Rd1 Qe7 25. Nxc7 Qxc7 26. Bxb6 Qe7 27. Qd5 Qf7 28. Qxf7+ Kxf7 29. Rd7+ Kg6 30. Bc4 Nd4 31. b3 h5 32. Rxb7 g4 33. Kf2 Bb4 34. Bxd4 exd4 35. Rb6+ Kg7 36. Rb7+ Kh6 37. Rb6+ Kg7 38. Rb5 Kg6 39. Rf5 Rf8 40. Rd5 Rf6 41. Ke2 Rd6 42. Rf5 gxf3+ 43. gxf3 Rf6 44. Rb5 Bc3 45. Kd3 h4 46. h3 Rf8 47. Be6 Kf6 48. Bg4 Re8 49. Rf5+ Ke7 50. Re5+ Kf8 51. Rh5 Ke7 52. Rxh4 Rb8 53. Rh7+ Kd6 54. Rh6+ Kc5 55. Be6 Kb4 56. Bc4 Rb7 57. h4 Rg7 58. Rb6+ Ka3 59. e5 Rg1 60. Ke4 Re1+ 61. Kxf4 Bd2+ 62. Kf5 Re3 63. Rd6 Rxf3+ 64. Ke6 Bc3 65. Kd7 Rh3 66. e6 Rxh4 67. e7 Rh7 68. Bd3 Rxe7+ 69. Kxe7 Bb4 70. Bc4 1-0

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.20"]
[Round "7"]
[White "Jonkman, Harmen"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2413"]
[BlackElo "2322"]
[PlyCount "109"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Bd3 Ngf6 6. Re1 e6 7. a4 b6 8. Bf1 Bb7 9. Nc3 Be7 10. d3 0-0 11. Ne2 Ne5 12. Nxe5 dxe5 13. b3 Nd7 14. g3 f5 15. Bg2 Bg5 16. Bxg5 Qxg5 17. f4 Qf6 18. Qd2 fxe4 19. dxe4 Rad8 20. Qd6 exf4 21. Nxf4 e5 22. Qxf6 Rxf6 23. Nd5 Rd6 24. Rf1 Bxd5 25. exd5 Rf8 26. Bh3 Rxf1+ 27. Rxf1 Nf6 28. c4 Kf8 29. Bc8 Rd8 30. Bf5 Ke7 31. h4 Rf8 32. a5 bxa5 33. Ra1 Nxd5 34. Bxh7 Nc3 35. Rxa5 e4 36. Rxc5 Kd6 37. Ra5 e3 38. Bd3 Rf3 39. Kg2 Rf2+ 40. Kh3 Rd2 41. c5+ Kc6 42. Bxa6 Rb2 43. Bc4 e2 44. Bxe2 Nxe2 45. Ra6+ Kxc5 46. Rg6 Rxb3 47. Rxg7 Rxg3+ 48. Rxg3 Nxg3 49. Kxg3 Kd6 50. Kg4 Ke7 51. Kg5 Kf7 52. h5 Kg7 53. h6+ Kg8 54. Kg6 Kh8 55. h7 1/2-1/2

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.19"]
[Round "6"]
[White "Mellema, Andries"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "B72"]
[WhiteElo "2143"]
[BlackElo "2322"]
[PlyCount "176"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. h3 Na5 10. 0-0 b6 11. Re1 Nxb3 12. axb3 Bb7 13. Bg5 Re8 14. Qd2 a6 15. b4 b5 16. Nb3 Rc8 17. Na5 Ba8 18. f3 Nd7 19. Be3 Nb6 20. Ra2 Qc7 21. Bd4 Bxd4+ 22. Qxd4 e5 23. Qd3 d5 24. exd5 Rcd8 25. Ne4 Nxd5 26. Qb3 Qb6+ 27. Kh1 Nf4 28. Qe3 Qxe3 29. Rxe3 Rd1+ 30. Kh2 Bxe4 31. Rxe4 Rd2 32. Nc6 Rxg2+ 33. Kh1 Rxc2 34. Rxe5 Rxe5 35. Nxe5 Re2 36. Nd7 Nxh3 37. Nc5 Ng5 38. Ra3 Rxb2 39. Nxa6 Rf2 40. Kg1 Rxf3 41. Ra5 Rf5 42. Nc7 Nf3+ 43. Kg2 Ne1+ 44. Kg3 Nd3 45. Nxb5 Nxb4 46. Ra8+ Kg7 47. Nd6 Rd5 48. Rd8 Kf6 49. Ne4+ Kg7 50. Nd6 Kf6 51. Ne4+ Ke7 52. Rb8 Nc6 53. Rb7+ Kf8 54. Nf6 Rf5 55. Ne4 Ne5 56. Nd6 Rf3+ 57. Kg2 Rd3 58. Rb8+ Ke7 59. Ne4 h5 60. Rb7+ Kf8 61. Rb5 Ng4 62. Rb7 Kg7 63. Nc5 Re3 64. Rb4 f5 65. Rb6 h4 66. Ne6+ Kh6 67. Nf4 Rg3+ 68. Kh1 Ne5 69. Rb8 Kg5 70. Ne6+ Kf6 71. Rb6 Ke7 72. Nf4 Rg4 73. Nd5+ Kf7 74. Rb7+ Ke6 75. Ne3 Re4 76. Rb6+ Kf7 77. Rb7+ Kf6 78. Nd5+ Kg5 79. Rb2 h3 80. Rb1 Ng4 81. Nc3 Re3 82. Rc1 Rg3 83. Rc2 Rd3 84. Kg1 Ne3 85. Rc1 Rd2 86. Kh1 Ng4 87. Rf1 Rh2+ 88. Kg1 Rg2+ 0-1

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.19"]
[Round "5"]
[White "Okkes, Menno"]
[Black "Schoehuys, Erik"]
[Result "1-0"]
[ECO "E69"]
[WhiteElo "2322"]
[BlackElo "2169"]
[PlyCount "93"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. Nc3 e5 8. h3 c6 9. e4 Qa5 10. Qc2 exd4 11. Nxd4 Nb6 12. Nce2 Re8 13. Bf4 Qc5 14. Rac1 Be6 15. Nxe6 Rxe6 16. Be3 Qa5 17. Nd4 Re7 18. Nb3 Qa4 19. Rfd1 Ne8 20. a3 Nd7 21. c5 dxc5 22. Nxc5 Qxc2 23. Rxc2 Nxc5 24. Bxc5 Rc7 25. Rcd2 b6 26. Be3 Rac8 27. f4 Bf6 28. e5 Be7 29. Bf1 Ng7 30. Ba6 Nf5 31. Bf2 Rb8 32. g4 Nh4 33. Rd7 Rxd7 34. Rxd7 Bc5 35. Kf1 Nf3 36. Be2 Bxf2 37. Kxf2 Nh4 38. Bc4 Rf8 39. Rxa7 b5 40. Bb3 c5 41. Bd5 g5 42. f5 Rd8 43. Bxf7+ Kf8 44. e6 Rd4 45. Bh5 Rf4+ 46. Ke2 Re4+ 47. Kd3 1-0

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.18"]
[Round "4"]
[White "Taams, Sander"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "1857"]
[BlackElo "2322"]
[PlyCount "75"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Bc4 Bg7 6. Nxc6 bxc6 7. Qf3 Nf6 8. Nc3 0-0 9. 0-0 Qc7 10. Bg5 d6 11. h3 Nd7 12. Qe3 Nb6 13. Bd3 Be6 14. Bh6 Nc4 15. Bxc4 Bxh6 16. Qxh6 Bxc4 17. Rfe1 f6 18. b3 Bf7 19. f4 Qa5 20. Ne2 Qc5+ 21. Kh2 Qxc2 22. Ng3 a5 23. Re3 Kh8 24. h4 Rg8 25. Rae1 e5 26. fxe5 fxe5 27. Rf3 Rg7 28. Ref1 Bg8 29. h5 a4 30. R1f2 Qb1 31. Rf6 Raa7 32. hxg6 axb3 33. axb3 Qxb3 34. Nh5 Qc4 35. Nxg7 Rxg7 36. Qh4 d5 37. gxh7 Rxh7 38. Rh6 1-0

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.17"]
[Round "3"]
[White "Okkes, Menno"]
[Black "Ten Hertog, Hugo"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2322"]
[BlackElo "2468"]
[PlyCount "82"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. c4 g6 2. Nf3 Bg7 3. d4 d6 4. g3 Nf6 5. Bg2 Bf5 6. 0-0 0-0 7. Nc3 Nc6 8. Ne1 e5 9. d5 Na5 10. e4 Bg4 11. f3 Bd7 12. b3 h5 13. Be3 b6 14. Nd3 h4 15. gxh4 Nh5 16. Qd2 Kh7 17. Rae1 Nb7 18. Bg5 Qe8 19. Ne2 f6 20. Be3 f5 21. exf5 gxf5 22. f4 Qg6 23. Kh1 Rae8 24. Rg1 Qf7 25. Nf2 Bf6 26. Nh3 Bxh4 27. Bf3 e4 28. Ng5+ Bxg5 29. Bxh5 Qxh5 30. Rxg5 Qf3+ 31. Rg2 Rg8 32. Nd4 Qxg2+ 33. Qxg2 Rxg2 34. Kxg2 Rg8+ 35. Kf2 Nc5 36. Rg1 Nd3+ 37. Kf1 Rxg1+ 38. Kxg1 Kg6 39. Kg2 a5 40. Kg3 a4 41. Bd2 Nc5 1/2-1/2

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.16"]
[Round "2"]
[White "Mijnheer, Peter"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "E42"]
[WhiteElo "2137"]
[BlackElo "2322"]
[PlyCount "90"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 c5 6. a3 Ba5 7. Rb1 Na6 8. g3 Bb7 9. d5 b5 10. Bg2 bxc4 11. e4 exd5 12. exd5 0-0 13. 0-0 d6 14. Bg5 h6 15. Bxf6 Qxf6 16. Qa4 Bb6 17. Qxc4 Nc7 18. Rfd1 Rae8 19. Ne4 Qd8 20. N2c3 f5 21. Nd2 Qf6 22. Na4 Re7 23. Nxb6 axb6 24. a4 Ba6 25. Qc3 Qf7 26. Nc4 Bxc4 27. Qxc4 f4 28. Rd2 Qe8 29. Rdd1 b5 30. axb5 Nxb5 31. Bh3 Nd4 32. Be6+ Kh8 33. Rxd4 cxd4 34. Qxd4 Rc7 35. b4 Qg6 36. Ra1 fxg3 37. hxg3 Qh5 38. Kg2 Qf3+ 39. Kg1 Rc2 40. Rf1 Qf6 41. Qb6 Qe5 42. b5 Rb2 43. Kg2 Kh7 44. Kg1 Rf3 45. Kh1 Rxg3 0-1

[Event "Hoogeveen Unive op 20th"]
[Site "Hoogeveen"]
[Date "2016.10.15"]
[Round "1"]
[White "Okkes, Menno"]
[Black "Van der Veen, Jan"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2322"]
[BlackElo "2059"]
[PlyCount "63"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 0-0 5. Nf3 d6 6. 0-0 c6 7. Nc3 Qb6 8. b3 e5 9. dxe5 dxe5 10. e4 Bg4 11. Qc2 Bxf3 12. Bxf3 Nbd7 13. Na4 Qc7 14. c5 Rfd8 15. Bg5 Nf8 16. Bxf6 Bxf6 17. Bg4 h5 18. Bh3 Rd4 19. Rad1 Rad8 20. Rxd4 Rxd4 21. Rd1 Rd8 22. Rxd8 Bxd8 23. Nb2 b5 24. cxb6 axb6 25. Nd3 Be7 26. a4 Nh7 27. Bg2 Nf8 28. Qc3 Bd6 29. Bh3 Nh7 30. Bg2 Nf8 31. Bh3 Nh7 32. Bg2 1/2-1/2

[Event "NED-chT 1516"]
[Site "Netherlands"]
[Date "2016.04.23"]
[Round "9.2"]
[White "De Jong, Jan Willem"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "E39"]
[WhiteElo "2453"]
[BlackElo "2336"]
[PlyCount "37"]
[EventDate "2015.09.26"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Leiden LSG"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 0-0 6. Nf3 Na6 7. g3 Nxc5 8. Bg2 b6 9. 0-0 Bb7 10. Nb5 Be4 11. Qd1 Nb7 12. a3 Be7 13. Bf4 a6 14. Nc3 Bc6 15. b4 Rc8 16. Qb3 Nd6 17. Bxd6 Bxd6 18. Rac1 Ba8 19. Nd2 1/2-1/2

[Event "NED-chT 1516"]
[Site "Netherlands"]
[Date "2016.04.02"]
[Round "8.2"]
[White "Okkes, Menno"]
[Black "Richter, Christian"]
[Result "1/2-1/2"]
[ECO "E63"]
[WhiteElo "2336"]
[BlackElo "2356"]
[PlyCount "117"]
[EventDate "2015.09.26"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Calder HMC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 0-0 5. c4 d6 6. 0-0 Nc6 7. Nc3 a6 8. h3 Rb8 9. e4 Nd7 10. Be3 Na5 11. Qe2 b5 12. cxb5 axb5 13. b3 b4 14. Na4 c6 15. Rac1 Nf6 16. Qc2 Ba6 17. Rfe1 Nd7 18. Qd2 Re8 19. Bh6 Bh8 20. e5 Nf8 21. exd6 exd6 22. Rxe8 Qxe8 23. Re1 Qd8 24. Bg5 Bf6 25. Qf4 Bxg5 26. Nxg5 Rb7 27. Ne4 Ne6 28. Qxd6 Qxd6 29. Nxd6 Rd7 30. Ne4 Rxd4 31. Nec5 Bb5 32. Nxe6 fxe6 33. Nc5 Rd2 34. Nxe6 Rxa2 35. Nd4 Kf8 36. Re5 Ra1+ 37. Kh2 Rc1 38. Nxb5 cxb5 39. Rxb5 Nxb3 40. Rxb4 Nc5 41. h4 Nd3 42. Rb8+ Kg7 43. Rb7+ Kh8 44. g4 Nxf2 45. Kg3 Nd3 46. Rb8+ Kg7 47. Rb7+ Kh8 48. h5 gxh5 49. gxh5 Rc8 50. Be4 Rg8+ 51. Kh4 Rg7 52. Rb8+ Rg8 53. Rxg8+ Kxg8 54. Bxd3 Kg7 55. Kg5 Kg8 56. Kh6 Kh8 57. Bg6 Kg8 58. Be4 Kh8 59. Bxh7 1/2-1/2

[Event "NED-chT 1516"]
[Site "Netherlands"]
[Date "2016.03.19"]
[Round "7.5"]
[White "Okkes, Menno"]
[Black "Kazarian, Anna Maja"]
[Result "0-1"]
[ECO "D79"]
[WhiteElo "2336"]
[BlackElo "2259"]
[PlyCount "74"]
[EventDate "2015.09.26"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Rotterdam Pathena"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. d4 Bg7 5. c4 c6 6. cxd5 cxd5 7. Nc3 Nc6 8. Ne5 0-0 9. 0-0 Be6 10. Nxc6 bxc6 11. Bf4 Nh5 12. Be3 c5 13. Qd2 Rc8 14. Rad1 c4 15. Bh6 Nf6 16. f3 Qd7 17. g4 Rfd8 18. h3 Bh8 19. Qf4 Qd6 20. e4 Qxf4 21. Bxf4 Ne8 22. Be3 Rb8 23. Rf2 Nc7 24. Bf1 Rb4 25. Rc2 f5 26. Bf4 Nb5 27. exd5 Bxd4+ 28. Kg2 Bxc3 29. bxc3 Ra4 30. Re1 Bxd5 31. Rxe7 fxg4 32. hxg4 Rf8 33. Kg3 g5 34. Be5 Rxf3+ 35. Kh2 Rxf1 36. Rd2 Kf8 37. Rxh7 Rh1+ 0-1

[Event "NED-chT 1415"]
[Site "Netherlands"]
[Date "2015.03.21"]
[Round "7.8"]
[White "Okkes, Menno"]
[Black "Leer, John"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2337"]
[BlackElo "2038"]
[PlyCount "103"]
[EventDate "2014.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Charlois Europoort"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. dxc3 Qxd1+ 7. Kxd1 Nc6 8. Kc2 Bd7 9. a4 e6 10. Bb5 a6 11. Be2 Be7 12. Bf4 f6 13. Nd2 e5 14. Be3 Na5 15. Nc4 Nxc4 16. Bxc4 Bc6 17. f3 0-0-0 18. a5 Rhf8 19. h4 Kb8 20. h5 h6 21. Be6 Rd6 22. Bc4 Rdd8 23. g4 Rc8 24. Be6 Rcd8 25. c4 Bd7 26. Bd5 Rc8 27. Rhd1 Bc6 28. Bxc6 Rxc6 29. Rd7 Rc7 30. Rxe7 Rxe7 31. Bxc5 Rfe8 32. Bxe7 Rxe7 33. Rd1 Kc7 34. Kc3 Re8 35. b3 Kc6 36. Rd5 Rb8 37. b4 Ra8 38. b5+ axb5 39. cxb5+ Kc7 40. b6+ Kc6 41. Kb4 Rg8 42. Rc5+ Kd6 43. Rc7 g6 44. hxg6 Rxg6 45. Rxb7 h5 46. gxh5 Rg1 47. h6 Rb1+ 48. Kc4 Rh1 49. h7 Rh2 50. Rf7 Ke6 51. b7 Rc2+ 52. Kd3 1-0

[Event "NED-chT 1415"]
[Site "Netherlands"]
[Date "2014.11.22"]
[Round "3.4"]
[White "Geurink, Jasper"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2345"]
[BlackElo "2337"]
[PlyCount "75"]
[EventDate "2014.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Bc5 8. 0-0 0-0 9. d3 Bf5 10. Rb1 Bb6 11. c4 Re8 12. Ng5 Rb8 13. Bd5 Bg6 14. h4 h5 15. Kh2 Ne7 16. Bf3 f6 17. Ne4 Bxe4 18. Bxe4 g6 19. f4 f5 20. Bg2 Nc6 21. Rb5 Qf6 22. Re1 exf4 23. Bxf4 Qc3 24. Bd2 Qg7 25. Rxe8+ Rxe8 26. Rxf5 gxf5 27. Bd5+ Kf8 28. Qxh5 Ne5 29. Qxf5+ Ke7 30. Bf4 Ng4+ 31. Kh3 Nf6 32. Bg5 Bd4 33. Qf4 c6 34. Qc7+ Kf8 35. Bh6 Re7 36. Bxg7+ Rxg7 37. Qd8+ Ne8 38. Bxc6 1-0

[Event "NED-chT 1415"]
[Site "Netherlands"]
[Date "2014.09.27"]
[Round "1.4"]
[White "Tikranian, Alik"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2151"]
[BlackElo "2337"]
[PlyCount "122"]
[EventDate "2014.09.27"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]
[WhiteTeam "Rotterdam"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. b3 Be7 7. 0-0 0-0 8. Bb2 d6 9. Qc2 Nbd7 10. Rad1 a6 11. Rfe1 Qc7 12. e4 Rac8 13. d3 Rfe8 14. h3 Bf8 15. g4 Ne5 16. Ne2 Nfd7 17. Ng3 Ng6 18. Qd2 d5 19. h4 d4 20. Bc1 Bd6 21. h5 Bf4 22. Qe2 Bxc1 23. hxg6 Bf4 24. gxh7+ Kxh7 25. Nh5 g6 26. Nxf4 Qxf4 27. Nh2 Ne5 28. Qd2 g5 29. Qxf4 gxf4 30. Kf1 Rg8 31. Ke2 Kg7 32. Rg1 Kf6 33. Bf3 Rg7 34. g5+ Rxg5 35. Rxg5 Kxg5 36. Rg1+ Kf6 37. Ng4+ Nxg4 38. Rxg4 e5 39. Rh4 Rg8 40. Rh6+ Rg6 41. Rh8 Ke7 42. Rb8 Bc6 43. Rxb6 Bxe4 44. Rb8 Bxf3+ 45. Kxf3 f5 46. Rb7+ Kf6 47. Rc7 Kg5 48. Re7 Rh6 49. Rxe5 Rh3+ 50. Kg2 Rxd3 51. Rxc5 Kg4 52. Rd5 f3+ 53. Kh2 Rd2 54. Rd7 Rxf2+ 55. Kg1 Rxa2 56. c5 Rc2 57. b4 d3 58. Rxd3 Kg3 59. Rd1 Rg2+ 60. Kf1 Rh2 61. Kg1 f2+ 0-1

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2014.05.10"]
[Round "9.6"]
[White "Ondersteijn, Niels"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "E46"]
[WhiteElo "2314"]
[BlackElo "2354"]
[PlyCount "103"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Calder HMC"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nge2 d5 6. a3 Bd6 7. Ng3 c6 8. Bd3 e5 9. dxe5 Bxe5 10. cxd5 cxd5 11. 0-0 Nc6 12. Nce2 Re8 13. Qc2 Be6 14. Nf4 Bd7 15. Bd2 Rc8 16. Rac1 Nb4 17. Qb1 Nxd3 18. Nxd3 Bxg3 19. hxg3 Bf5 20. b4 Rxc1 21. Bxc1 d4 22. Rd1 Ng4 23. e4 Bxe4 24. f3 Bxd3 25. Qxd3 Nf6 26. Bb2 Re5 27. Bxd4 Rd5 28. Qc3 h6 29. Rd2 Qd7 30. g4 a6 31. Kf2 Ne8 32. Be3 Nc7 33. Rc2 Ne6 34. Qc8+ Kh7 35. Qxd7 Rxd7 36. a4 Kg6 37. f4 f5 38. gxf5+ Kxf5 39. Rc4 h5 40. Kf3 Rd3 41. b5 axb5 42. axb5 b6 43. g3 Rb3 44. Ra4 Rxb5 45. Ra7 Rb3 46. Rf7+ Kg6 47. Rd7 Kf6 48. Ke4 g6 49. Rd6 Ke7 50. Rxb6 Rxb6 51. Bxb6 Ng7 52. Kf3 1/2-1/2

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2014.04.12"]
[Round "8.8"]
[White "Riemersma, Liafbern"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "E39"]
[WhiteElo "2437"]
[BlackElo "2354"]
[PlyCount "43"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "BSG"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 0-0 6. Nf3 Na6 7. g3 Nxc5 8. Bg2 b6 9. 0-0 Bb7 10. Rd1 Rc8 11. Bf4 Nce4 12. Nxe4 Bxe4 13. Qa4 a5 14. Ne5 Bxg2 15. Kxg2 d5 16. Bg5 Qe8 17. Qxe8 Rfxe8 18. Bxf6 gxf6 19. Ng4 Kg7 20. cxd5 Rc2 21. a3 Bc5 22. b4 1/2-1/2

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2014.03.29"]
[Round "7.9"]
[White "Riemens, Michael"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2263"]
[BlackElo "2354"]
[PlyCount "38"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d4 exd4 5. e5 Ne4 6. 0-0 a6 7. Bc4 Be7 8. Nxd4 0-0 9. Nxc6 bxc6 10. Nd2 Nxd2 11. Bxd2 d5 12. Bd3 f5 13. exf6 Bxf6 14. Bb4 Be7 15. Qh5 h6 16. Qg6 Bxb4 17. Qh7+ Kf7 18. Qg6+ Kg8 19. Qh7+ Kf7 1/2-1/2

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2014.03.08"]
[Round "6.7"]
[White "Okkes, Menno"]
[Black "Pijpers, Arthur"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2354"]
[BlackElo "2360"]
[PlyCount "48"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bf5 4. 0-0 Nf6 5. c4 e6 6. cxd5 cxd5 7. Qb3 Qc8 8. Nc3 Nc6 9. d3 Be7 10. Bg5 h6 11. Bxf6 Bxf6 12. e4 dxe4 13. dxe4 Bg4 14. e5 Be7 15. Qa4 Bxf3 16. Bxf3 0-0 17. Bxc6 bxc6 18. b3 Qc7 19. Qe4 Rfd8 20. Rac1 Rd2 21. Rfd1 Rad8 22. Rxd2 Rxd2 23. Rd1 Rxd1+ 24. Nxd1 Qa5 1/2-1/2

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2014.02.08"]
[Round "5.9"]
[White "Taha Yasen, Mohammed"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "E43"]
[WhiteElo "2380"]
[BlackElo "2354"]
[PlyCount "86"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Rotterdam"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 0-0 7. Qc2 c5 8. Bd2 cxd4 9. Nxd4 Be7 10. e4 d6 11. f4 Na6 12. Qb1 Nc5 13. Bc2 d5 14. cxd5 exd5 15. e5 Nfe4 16. Be3 f6 17. Nxe4 dxe4 18. 0-0 fxe5 19. fxe5 Rxf1+ 20. Qxf1 Bg5 21. Qc1 Nd3 22. Bxd3 exd3 23. Nf3 Rc8 24. Qd2 Bxe3+ 25. Qxe3 Bxf3 26. gxf3 Qd5 27. Rd1 Rd8 28. e6 Re8 29. Rxd3 Qxe6 30. Qxe6+ Rxe6 31. Rd7 Re2 32. Rxa7 Rxb2 33. Rb7 h5 34. a4 Rb4 35. Ra7 Kh7 36. a5 bxa5 37. Rxa5 g6 38. Kg2 Kg7 39. Ra6 g5 40. Rc6 Rb2+ 41. Kg3 Rb3 42. Rc7+ Kg6 43. Rc6+ Kg7 1/2-1/2

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2014.01.04"]
[Round "4.9"]
[White "Okkes, Menno"]
[Black "Bosboom, Manuel"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2354"]
[BlackElo "2387"]
[PlyCount "118"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "En Passant"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Bc4 c6 5. Bb3 d5 6. e5 a5 7. a4 Nh6 8. 0-0 0-0 9. Re1 Na6 10. h3 f6 11. c4 Nb4 12. cxd5 cxd5 13. Nc3 Kh8 14. Bf4 g5 15. exf6 exf6 16. Bh2 g4 17. hxg4 Bxg4 18. Qd2 Bxf3 19. gxf3 Qd7 20. Rad1 Nf5 21. Kh1 Bh6 22. Qe2 Qf7 23. Rg1 Rae8 24. Qb5 Qh5 25. Rg4 Qh3 26. Bxd5 Rd8 27. Bxb7 Nd6 28. Qb6 Nxb7 29. Qxb7 Rfe8 30. Rg3 Qf5 31. Qb5 Qc2 32. Qb6 Nd5 33. Nxd5 Qxd1+ 34. Kg2 Rf8 35. Rh3 Rxd5 36. Rxh6 Qxd4 37. Qxd4 Rxd4 38. b3 Rd5 39. Rh4 Kg7 40. b4 axb4 41. Rxb4 Ra8 42. Bc7 Rg5+ 43. Kf1 Rc8 44. Rb7 Rd5 45. Bb6+ Kg6 46. a5 Rc1+ 47. Kg2 Rg5+ 48. Kh2 Ra1 49. Re7 Ra3 50. Re4 Rf5 51. f4 Rb5 52. Kg2 Kf5 53. Rc4 h5 54. Rc6 Rd5 55. Bc7 h4 56. Bd6 Ra2 57. Be7 Kg4 58. Bc5 Rc2 59. a6 Rcxc5 0-1

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2013.12.07"]
[Round "3.7"]
[White "Zwirs, Nico"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "2255"]
[BlackElo "2354"]
[PlyCount "75"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Apeldoorn"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. g3 a6 7. Bg2 Nf6 8. 0-0 h5 9. Nxc6 dxc6 10. Qe2 e5 11. Bg5 Bc5 12. a4 a5 13. Nd1 Be6 14. Ne3 Ng4 15. Nf5 f6 16. Bd2 g6 17. Nh4 g5 18. Nf5 0-0-0 19. h3 Nh6 20. Be3 Nxf5 21. exf5 Bxe3 22. fxe6 Bb6 23. Be4 Kb8 24. c3 h4 25. g4 Rd6 26. Bf5 Rhd8 27. Rad1 Bc5 28. Kg2 Qe7 29. Qc2 Rd5 30. Rxd5 cxd5 31. Qb3 d4 32. Rd1 Ka7 33. Qb5 Qc7 34. cxd4 Bxd4 35. Rc1 Qb6 36. e7 Qxb5 37. exd8Q Qb4 38. Rc8 1-0

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2013.11.02"]
[Round "2.1"]
[White "Okkes, Menno"]
[Black "Saltaev, Mihail"]
[Result "0-1"]
[ECO "D78"]
[WhiteElo "2357"]
[BlackElo "2480"]
[PlyCount "52"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Voerendaal"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. g3 c6 3. Bg2 Nd7 4. d4 Ngf6 5. 0-0 g6 6. b3 Bg7 7. Bb2 0-0 8. c4 Ne4 9. Nbd2 Ndf6 10. e3 Be6 11. Qe2 Qa5 12. Rfc1 Rfc8 13. a4 Bf5 14. Nxe4 Nxe4 15. Ne5 Qd2 16. Qxd2 Nxd2 17. Ra3 Bxe5 18. dxe5 dxc4 19. bxc4 Be6 20. Rac3 Rc7 21. a5 Rd8 22. Ba3 b6 23. axb6 axb6 24. h3 Ra8 25. c5 b5 26. R1c2 Nb1 0-1

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.26"]
[Round "9"]
[White "Okkes, Menno"]
[Black "Van der Veen, Jan"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2351"]
[BlackElo "2056"]
[PlyCount "49"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. Be3 Na6 8. 0-0 Ng4 9. Bg5 Qe8 10. c5 f6 11. Bh4 dxc5 12. dxe5 Nxe5 13. Nxe5 fxe5 14. Bxa6 bxa6 15. Qd5+ Be6 16. Qxc5 Qf7 17. b3 Rfe8 18. Rfd1 c6 19. Qa5 Qb7 20. Na4 Bf8 21. Qc3 Qb5 22. Rac1 c5 23. Nb2 Qb4 24. Nc4 Qxc3 25. Rxc3 1-0

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.25"]
[Round "8"]
[White "Hulshof, Peter"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "2206"]
[BlackElo "2351"]
[PlyCount "62"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e6 7. Nf3 Nge7 8. 0-0 0-0 9. Be3 b6 10. d4 Ba6 11. Re1 Rc8 12. a4 d5 13. e5 Nf5 14. Bf2 Nfxd4 15. Nxd4 Nxd4 16. Bxd4 cxd4 17. Nb5 Bxb5 18. axb5 Qe7 19. Bf1 Rc7 20. Bd3 f6 21. exf6 Qxf6 22. Qg4 Re7 23. Re2 e5 24. fxe5 Rxe5 25. Rxe5 Qxe5 26. Rf1 Qe3+ 27. Kg2 Qd2+ 28. Kh3 Qh6+ 29. Kg2 Qd2+ 30. Kh3 Qh6+ 31. Kg2 Qd2+ 1/2-1/2

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.24"]
[Round "7"]
[White "Pancevski, Filip"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "B66"]
[WhiteElo "2493"]
[BlackElo "2351"]
[PlyCount "133"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Be7 9. f4 Nxd4 10. Qxd4 b5 11. Be2 Bb7 12. Bf3 0-0 13. e5 Bxf3 14. exf6 gxf6 15. gxf3 fxg5 16. Ne4 d5 17. h4 Qc7 18. Nxg5 Qc4 19. Qe5 Rac8 20. Rh2 Qc7 21. Qd4 Qc4 22. Rg2 Qxd4 23. Nxe6+ Kh8 24. Nxd4 Bf6 25. Nf5 Rc4 26. Nh6 Bg7 27. Nf5 Bf6 28. Rdg1 h6 29. Ne3 Rxf4 30. Nxd5 Rxf3 31. Nxf6 Rxf6 32. Rg4 Rf2 33. a4 Rh2 34. axb5 axb5 35. Rb4 f5 36. Rf1 Kh7 37. Rxb5 f4 38. h5 Rf7 39. Rd5 f3 40. Rd3 f2 41. Rd2 Rf4 42. Kd1 Kg7 43. Ke2 Kf6 44. Ke3 Ke5 45. Rdxf2 Re4+ 46. Kd3 Rxh5 47. Rf8 Rd4+ 48. Kc3 Rh3+ 49. R1f3 Rxf3+ 50. Rxf3 Rd8 51. b4 h5 52. Rh3 Rh8 53. Rh4 Kf5 54. b5 Kg5 55. Rh2 h4 56. Kb4 h3 57. c4 Kf6 58. b6 Ke7 59. Kb5 Kd7 60. c5 Kc8 61. c6 Kb8 62. Ka6 Rh4 63. Re2 Rh8 64. c7+ Kc8 65. Ka7 Rg8 66. Rc2 Kd7 67. b7 1-0

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.23"]
[Round "6"]
[White "Okkes, Menno"]
[Black "Sachdev, Tania"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2351"]
[BlackElo "2438"]
[PlyCount "96"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. c4 e6 5. cxd5 exd5 6. 0-0 Be7 7. Qb3 Qc8 8. Nc3 c6 9. d3 0-0 10. Qc2 h6 11. e4 dxe4 12. dxe4 Bh7 13. h3 Na6 14. Nd4 Rd8 15. Be3 Bc5 16. Rad1 Nd5 17. Nxd5 cxd5 18. Nf5 Bxf5 19. exf5 Bxe3 20. Qxc8 Bxf2+ 21. Rxf2 Raxc8 22. Rxd5 Rc1+ 23. Kh2 Rxd5 24. Bxd5 b6 25. g4 Kf8 26. h4 Nb4 27. Bb3 Nd3 28. Rd2 Ne5 29. Kg2 Ke7 30. g5 hxg5 31. hxg5 Rg1+ 32. Kxg1 Nf3+ 33. Kf2 Nxd2 34. Bd5 Kd6 35. Bxf7 Ne4+ 36. Ke3 Nxg5 37. Bg6 Ke5 38. Kd3 Ne4 39. Kc4 Nd6+ 40. Kb4 a6 41. Ka4 Nxf5 42. b4 Nd4 43. Bd3 b5+ 44. Ka3 g5 45. Kb2 g4 46. Kc3 g3 47. Bf1 Nf5 48. Kd3 Nh4 0-1

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.22"]
[Round "5"]
[White "Okkes, Menno"]
[Black "L'Ami, Erwin"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2351"]
[BlackElo "2645"]
[PlyCount "133"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Qc2 b6 6. cxd5 Nxd5 7. Nc3 Bb7 8. Nxd5 Bxd5 9. 0-0 c5 10. b3 Be7 11. Bb2 Bf6 12. Rac1 0-0 13. d4 Rc8 14. e4 Bb7 15. Qe2 cxd4 16. Nxd4 Nc5 17. Rfd1 Ba6 18. Qe3 Nd3 19. Rxc8 Qxc8 20. Rxd3 Bxd3 21. e5 Be7 22. Qxd3 Rd8 23. Qe2 Qd7 24. Bc6 Qc7 25. Be4 Bb4 26. Kg2 g6 27. Nf3 Qc5 28. h4 Bc3 29. Bxc3 Qxc3 30. Qe3 Qxe3 31. fxe3 Rd1 32. a4 Rc1 33. Nd4 Rc5 34. Kf3 a5 35. Kf4 Kf8 36. Bd3 Rc3 37. Bc4 Ke7 38. Nf3 Rc2 39. Ng5 Rf2+ 40. Ke4 h6 41. Nh3 Rh2 42. Nf4 Rf2 43. g4 h5 44. gxh5 gxh5 45. Nxh5 Rh2 46. Nf6 Rxh4+ 47. Kd3 Rh1 48. Ne4 Rh5 49. Kd4 Rh4 50. Kd3 Rh5 51. Kd4 Rh4 52. Bb5 Rh1 53. Be2 Kd7 54. Bb5+ Ke7 55. Nd2 Rh4+ 56. Kd3 Kd8 57. Nc4 Kc7 58. Be8 Rh7 59. Kd4 Rh4+ 60. Kd3 Rh7 61. Ke4 Rh4+ 62. Kf3 Rh1 63. Kg4 Rf1 64. Kg5 Kd8 65. Bb5 Kc7 66. Nd6 Rf3 67. Nc4 1/2-1/2

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.21"]
[Round "4"]
[White "Wagner, Dennis"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2481"]
[BlackElo "2351"]
[PlyCount "80"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. a3 Qc7 7. e4 b6 8. Be2 Bb7 9. f3 d6 10. Be3 Be7 11. 0-0 0-0 12. Qd2 Nbd7 13. Rac1 Rac8 14. Kh1 Qb8 15. Rfd1 Rfe8 16. Bg1 Bd8 17. Rc2 Ne5 18. b3 Bc7 19. Bf1 Qa8 20. b4 h5 21. Qf2 Ng6 22. Nb3 h4 23. Na4 h3 24. Nxb6 Nxe4 25. fxe4 Bxb6 26. Qxb6 Bxe4 27. Rdd2 Nh4 28. Qd4 e5 29. Qc3 hxg2+ 30. Bxg2 Nxg2 31. Rxg2 Re6 32. c5 Rg6 33. Qb2 Qd5 34. Na5 dxc5 35. bxc5 Re8 36. h3 Qd8 37. Nc4 Qh4 38. Qc3 Rg3 39. Ne3 Rxh3+ 40. Bh2 Rxh2+ 0-1

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.20"]
[Round "3"]
[White "Okkes, Menno"]
[Black "Van Wageningen, Arie"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2351"]
[BlackElo "2036"]
[PlyCount "59"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 e6 3. Bg2 Nf6 4. 0-0 c5 5. c4 d4 6. e3 Nc6 7. exd4 cxd4 8. d3 Bd6 9. Bg5 0-0 10. a3 a5 11. Nbd2 a4 12. Ne4 Be7 13. Bxf6 Bxf6 14. Nxf6+ Qxf6 15. b4 axb3 16. Qxb3 Re8 17. Rfe1 Ra5 18. Nd2 Qd8 19. a4 Ra6 20. Qa3 Na5 21. Nb3 Nxb3 22. Qxb3 Re7 23. Re5 b6 24. Rb5 Bd7 25. Rb4 Qc7 26. Rb1 Re8 27. Rxb6 Rxa4 28. Rb7 Qc8 29. Qb6 h6 30. Rxd7 1-0

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.19"]
[Round "2"]
[White "Baskin, Robert"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B88"]
[WhiteElo "2179"]
[BlackElo "2351"]
[PlyCount "85"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8. 0-0 0-0 9. Qe2 a6 10. a4 Bd7 11. Kh1 Nxd4 12. Bxd4 Bc6 13. f4 d5 14. Rad1 Re8 15. Bb3 Bb4 16. exd5 exd5 17. Qd3 Bf8 18. Bxf6 Qxf6 19. Nxd5 Qd6 20. Qf5 Re2 21. Bc4 Qe6 22. Qxe6 Rxe6 23. Nc7 Rg6 24. f5 Bxg2+ 25. Kg1 Bc5+ 26. Rf2 Rg4 27. h3 Bxh3+ 28. Kh2 Rc8 29. Bxf7+ Kxf7 30. Rd7+ Kg8 31. Kxh3 Rd4 32. Rxd4 Bxd4 33. Rd2 Be3 34. Rd7 Bg5 35. Ne6 Bf6 36. c3 b6 37. Rd6 Rc4 38. Rxb6 Rxa4 39. Rb8+ Kf7 40. Rb7+ Kg8 41. Rb8+ Kf7 42. Rb7+ Kg8 43. Rb8+ 1/2-1/2

[Event "Hoogeveen Unive op 17th"]
[Site "Hoogeveen"]
[Date "2013.10.18"]
[Round "1"]
[White "Okkes, Menno"]
[Black "Vos, Tjark"]
[Result "1-0"]
[ECO "E02"]
[WhiteElo "2351"]
[BlackElo "2097"]
[PlyCount "109"]
[EventDate "2013.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Qc2 Be7 6. 0-0 0-0 7. d4 dxc4 8. Qxc4 c5 9. dxc5 Bxc5 10. Nc3 Qe7 11. Bg5 h6 12. Bxf6 Nxf6 13. Rac1 b6 14. Nd2 Bb7 15. Bxb7 Qxb7 16. Nce4 Nxe4 17. Qxe4 Qe7 18. Rc2 Rfd8 19. Nb3 Bd6 20. Rfc1 Qf6 21. Nd2 g6 22. Nf3 Bf8 23. Ne1 Rd5 24. Nd3 Rad8 25. Rc7 a5 26. Rb7 b5 27. Rcc7 Bd6 28. Rxf7 Qxf7 29. Rxf7 Kxf7 30. Nf4 Bxf4 31. Qxf4+ Kg7 32. Qc7+ Kf6 33. Qxa5 Rc8 34. e4 Re5 35. Qb4 Kf7 36. Qd4 Rec5 37. e5 Rd5 38. Qf4+ Ke8 39. Qxh6 Rcc5 40. Qxg6+ Kd7 41. Qf7+ Kd8 42. Qxe6 Rxe5 43. Qd6+ Ke8 44. Kg2 Kf7 45. h4 Rcd5 46. Qc7+ Kf6 47. Qc6+ Kg7 48. Kh3 Rd3 49. Qb7+ Kf6 50. a4 Rb3 51. Qb6+ Kf7 52. Qc7+ Kf6 53. Qd6+ Kf5 54. f4 Ree3 55. Qd5+ 1-0

[Event "NED-chT 1314"]
[Site "Netherlands"]
[Date "2013.09.21"]
[Round "1.5"]
[White "Bernink, Henk"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "E43"]
[WhiteElo "2224"]
[BlackElo "2354"]
[PlyCount "14"]
[EventDate "2013.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "ESG Max Euwe"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nf3 b6 7. Bd2 Bb7 1/2-1/2

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2013.04.20"]
[Round "9.4"]
[White "Okkes, Menno"]
[Black "Bosch, Jeroen"]
[Result "0-1"]
[ECO "A55"]
[WhiteElo "2375"]
[BlackElo "2378"]
[PlyCount "68"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Calder HMC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. g3 d6 3. d4 Nbd7 4. c4 e5 5. Nc3 c6 6. Bg2 Be7 7. 0-0 0-0 8. e4 a6 9. d5 cxd5 10. cxd5 b5 11. Ne1 Nb6 12. Nd3 Bd7 13. b3 Qb8 14. Bb2 a5 15. f4 b4 16. Ne2 Ng4 17. Qd2 f6 18. h3 Nh6 19. a3 bxa3 20. Bxa3 Nf7 21. Kh2 Nc8 22. Rab1 Na7 23. fxe5 fxe5 24. h4 Nb5 25. Bb2 Nh6 26. Rxf8+ Bxf8 27. Kh1 Be7 28. Bc1 Ng4 29. Qe1 Qb6 30. Ng1 Qd4 31. Bf1 Nc3 32. Nf3 Qxe4 33. Qxe4 Nxe4 34. Kg2 Nc3 0-1

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2013.04.06"]
[Round "8.5"]
[White "Okkes, Menno"]
[Black "Muhren, Bianca"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2375"]
[BlackElo "2307"]
[PlyCount "93"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "De Stukkenjagers"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. 0-0 Nd7 5. c4 Ngf6 6. cxd5 cxd5 7. Nc3 e6 8. Qb3 Qc7 9. d4 Be7 10. Ne5 Nxe5 11. dxe5 Nd7 12. h3 Bh5 13. e4 d4 14. Nb5 Qb6 15. g4 Bg6 16. f4 Nc5 17. Qc4 a6 18. Nxd4 Bxe4 19. Bxe4 Nxe4 20. Qa4+ Kf8 21. Be3 Bc5 22. Rad1 Kg8 23. Qc2 Ng3 24. Rf3 Rd8 25. Rxg3 Bxd4 26. Rxd4 Rxd4 27. Kh2 g5 28. f5 Qd8 29. Bxd4 Qxd4 30. Qc3 Qf2+ 31. Rg2 Qf4+ 32. Qg3 Qxg3+ 33. Kxg3 Kg7 34. Rd2 Re8 35. f6+ Kg6 36. Rd7 Rc8 37. Kf3 b5 38. b3 Rc3+ 39. Ke4 Rxh3 40. Rd8 Rc3 41. Rg8+ Kh6 42. Kd4 Rc1 43. Rg7 Rc7 44. a4 bxa4 45. bxa4 a5 46. Rg8 Rc4+ 47. Kxc4 1/2-1/2

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2013.03.09"]
[Round "7.3"]
[White "Pruijssers, Roeland"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "2514"]
[BlackElo "2375"]
[PlyCount "120"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Apeldoorn"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. Qe2 d6 8. Be3 Nf6 9. N1d2 0-0 10. 0-0-0 Bxe3 11. Qxe3 e5 12. Be2 b5 13. f4 Nc6 14. f5 Qc7 15. Kb1 a5 16. g4 a4 17. Nc1 Nd4 18. c3 Nxe2 19. Nxe2 d5 20. g5 Nxe4 21. Nxe4 dxe4 22. Ng3 Qc4 23. Rd6 Ra6 24. Rxa6 Bxa6 25. Qxe4 Qxe4+ 26. Nxe4 Rd8 27. Kc2 Bc8 28. Rf1 Kf8 29. f6 Be6 30. b3 axb3+ 31. axb3 gxf6 32. gxf6 h6 33. Nc5 Bg4 34. Re1 Rd6 35. Rxe5 Rxf6 36. Ne4 Rf4 37. Kd2 f6 38. Nxf6 Rxf6 39. Rxb5 Rf2+ 40. Ke3 Rxh2 41. c4 Ke7 42. b4 h5 43. Rb7+ Kd6 44. Rb6+ Kc7 45. Rh6 Rb2 46. b5 Re2+ 47. Kd4 Re6 48. Rh8 Be2 49. c5 Bxb5 50. Rxh5 Rg6 51. Rh4 Bd7 52. Kc4 Kc6 53. Rd4 Be6+ 54. Kb4 Bd5 55. Rf4 Re6 56. Rh4 Re1 57. Rh6+ Be6 58. Rh5 Re4+ 59. Kc3 Bd5 60. Rh8 Kxc5 1/2-1/2

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2013.02.16"]
[Round "6.6"]
[White "Okkes, Menno"]
[Black "Van der Heijden, Ton"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2375"]
[BlackElo "2285"]
[PlyCount "71"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "BSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 c5 2. c4 g6 3. e4 Bg7 4. d4 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Nc3 0-0 8. Be2 b6 9. 0-0 Bb7 10. Ndb5 d6 11. Qd2 Qd7 12. f3 Rfd8 13. Rfd1 Ne8 14. Rac1 e6 15. Kh1 Qe7 16. Bf1 Rd7 17. Qf2 f5 18. exf5 gxf5 19. a3 f4 20. Bxf4 a6 21. Nxd6 Nxd6 22. Qxb6 e5 23. Be3 Nd4 24. c5 N6f5 25. Bxd4 Nxd4 26. c6 Nxc6 27. Nd5 Qd8 28. Rxc6 Kh8 29. Bc4 Bxc6 30. Qxc6 Rc8 31. Qxa6 Rc5 32. b4 Rc8 33. Bf1 Rc2 34. Qd3 Rc6 35. Qe4 Rc8 36. Bd3 1-0

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2012.12.15"]
[Round "5.4"]
[White "Hoeksema, Hendrik Pieter"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "2347"]
[BlackElo "2375"]
[PlyCount "20"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Groningen"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 0-0 5. Bg5 c5 6. e3 cxd4 7. exd4 d5 8. cxd5 exd5 9. Be2 h6 10. Bxf6 Bxc3+ 1/2-1/2

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2012.11.24"]
[Round "4.7"]
[White "Carlier, Bruno"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2393"]
[BlackElo "2375"]
[PlyCount "39"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]
[WhiteTeam "Rotterdam"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 0-0 6. Nc3 d6 7. Bg5 h6 8. Bxf6 Qxf6 9. Nd5 Qd8 10. c3 Ne7 11. Ne3 Ng6 12. d4 Bb6 13. Nd5 c6 14. Nxb6 axb6 15. dxe5 dxe5 16. Qxd8 Rxd8 17. h3 Kf8 18. Rfd1 Rxd1+ 19. Rxd1 Ke7 20. Bb3 1/2-1/2

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2012.11.03"]
[Round "3.7"]
[White "Okkes, Menno"]
[Black "Roggeveen, Pieter"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2375"]
[BlackElo "2207"]
[PlyCount "65"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 e6 2. c4 d5 3. d4 Nf6 4. g3 dxc4 5. Bg2 b5 6. a4 c6 7. Ne5 Nd5 8. 0-0 f6 9. e4 Ne7 10. Nf3 a6 11. b3 cxb3 12. Qxb3 Kf7 13. axb5 cxb5 14. d5 exd5 15. exd5 Nf5 16. Nc3 Nd6 17. Nd4 Bb7 18. Ne6 Qc8 19. Bf4 Nd7 20. Bxd6 Bxd6 21. Ne4 Qb8 22. Rac1 Ra7 23. Nc7 Be5 24. d6+ Kg6 25. Qd3 f5 26. Nc5 Nxc5 27. Rxc5 Bxg2 28. Kxg2 Bf6 29. Qxf5+ Kf7 30. Qe6+ Kg6 31. Re1 h6 32. Qf5+ Kf7 33. Re7+ 1-0

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.27"]
[Round "9"]
[White "Okkes, Menno"]
[Black "Brynell, Stellan"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2368"]
[BlackElo "2500"]
[PlyCount "75"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 dxc4 5. Bg2 Bb4+ 6. Bd2 c5 7. Bxb4 cxb4 8. Ne5 0-0 9. a3 Nc6 10. Bxc6 bxc6 11. axb4 Qb6 12. 0-0 Qxb4 13. Qd2 c5 14. Rc1 Qxd2 15. Nxd2 cxd4 16. Rxc4 d3 17. Nxd3 Bd7 18. Rc7 a6 19. Ne4 Bb5 20. Nd6 Bxd3 21. exd3 h6 22. Rb7 Nd5 23. Kf1 g5 24. Ke2 Kg7 25. Nc4 Kf6 26. Nb6 Nxb6 27. Rxb6 Rfc8 28. Kd2 Rc5 29. b4 Rf5 30. Ke3 Re5+ 31. Kd2 Rf5 32. Ke3 Re5+ 33. Kd2 a5 34. Ra4 Rf5 35. Ke3 Re5+ 36. Kd2 Rf5 37. Ke3 Re5+ 38. Kd2 1/2-1/2

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.26"]
[Round "8"]
[White "Kerigan, Demre"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "2238"]
[BlackElo "2368"]
[PlyCount "146"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Qf6 8. Be3 Bxf3 9. Qxf3 Qxf3 10. gxf3 Bd6 11. Nd2 Ne7 12. Rfb1 a5 13. Kf1 c5 14. Nc4 f5 15. Ke2 f4 16. Bd2 Nc6 17. Rg1 Kf7 18. c3 Be7 19. Na3 Rhd8 20. Nb5 Rd7 21. d4 cxd4 22. cxd4 Nxd4+ 23. Nxd4 exd4 24. Bxf4 d3+ 25. Kd1 Ra6 26. Rc1 Rf6 27. Be5 Rxf3 28. Rxg7+ Ke6 29. Rxc7 Rxc7 30. Bxc7 Rxf2 31. Bxa5 Rxb2 32. Rg6+ Kf7 33. Rg3 Rxa2 34. Bc3 Ra4 35. e5 Ke6 36. Rxd3 Ra2 37. Bd2 Ra3 38. Rxa3 Bxa3 39. Bc3 Bf8 40. Ke2 Bg7 41. Ke3 Bxe5 42. Be1 Kd5 43. Kd3 Bf4 44. Bc3 Be5 45. Be1 Bd4 46. Ba5 Bc5 47. Bc3 Be7 48. Bd4 Bd6 49. Bc3 Kc5 50. Bd4+ Kb4 51. Bc3+ Kb3 52. Bd2 Be5 53. Ba5 Bg7 54. Be1 Bh6 55. Ba5 Kb2 56. Bb6 Kc1 57. Ke4 Kd2 58. Kf5 Be3 59. Ba5+ Kd3 60. Kg6 h4 61. Kh5 Bf2 62. Kg4 b5 63. Bb4 Kc4 64. Bd2 Bd4 65. Kxh4 Bc3 66. Bg5 b4 67. Kg4 b3 68. Bc1 Kd3 69. h4 Kc2 70. Ba3 Bb4 71. Bxb4 b2 72. h5 b1Q 73. Be7 Kc3 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.25"]
[Round "7"]
[White "Okkes, Menno"]
[Black "Van der Lende, Ilias"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "2368"]
[BlackElo "2169"]
[PlyCount "107"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 dxc4 5. Bg2 Be7 6. 0-0 0-0 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 Be4 11. Qc1 Nc6 12. e3 b4 13. Be1 Qd6 14. Nbd2 Bd3 15. Nc4 Qd8 16. Nfe5 Nxe5 17. Nxe5 Bxf1 18. Nc6 Qd6 19. Nxe7+ Qxe7 20. Bxa8 Rxa8 21. Qc6 Rb8 22. Kxf1 Rb6 23. Qa8+ Qe8 24. Qxe8+ Nxe8 25. Rc1 c6 26. a3 bxa3 27. bxa3 f5 28. a4 a5 29. Rc5 Ra6 30. Rxa5 Nc7 31. Rxa6 Nxa6 32. Ke2 Kf7 33. f3 Ke7 34. e4 Kd6 35. Kd3 fxe4+ 36. fxe4 e5 37. dxe5+ Kxe5 38. Bc3+ Kd6 39. Ke3 g6 40. Kf4 Ke6 41. g4 h6 42. a5 c5 43. h4 h5 44. gxh5 gxh5 45. Kg5 c4 46. Kxh5 Nc5 47. Kg6 Kd6 48. h5 Nxe4 49. a6 Kc6 50. h6 Nxc3 51. h7 Nb5 52. h8Q Kb6 53. Qf6+ Ka5 54. Qa1+ 1-0

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.24"]
[Round "6"]
[White "Kollen, Zyon"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2174"]
[BlackElo "2368"]
[PlyCount "168"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Qf6 8. Nbd2 Ne7 9. Re1 Ng6 10. d4 Nf4 11. dxe5 Qg6 12. Nh4 Qe6 13. hxg4 hxg4 14. Nf1 Rd8 15. Bxf4 Rxd1 16. Rexd1 Rxh4 17. Bg5 Be7 18. Bxh4 Bxh4 19. g3 Bg5 20. Rd4 Qxe5 21. Rad1 Qe6 22. b3 g6 23. Nh2 Bf6 24. Rd7 Be5 25. R7d3 Kf8 26. Nf1 Kg7 27. Ne3 b5 28. c4 c5 29. Rd5 bxc4 30. bxc4 Bd6 31. Re1 Be7 32. Rdd1 Bf6 33. e5 Bxe5 34. Rd5 f6 35. Rxc5 Kh7 36. Nd5 c6 37. Nxf6+ Qxf6 38. Rcxe5 Qf3 39. R5e4 Kh6 40. Rf4 Qc3 41. Re6 Qa1+ 42. Kg2 Kh5 43. Rff6 Qxa2 44. Rxc6 Qc2 45. c5 a5 46. Rxg6 a4 47. Rge6 Qc3 48. Rcd6 Qf3+ 49. Kg1 Qf5 50. c6 a3 51. Rh6+ Kg5 52. Rdg6+ Qxg6 53. Rxg6+ Kxg6 54. c7 a2 55. c8Q a1Q+ 56. Kg2 Qd1 57. Qe6+ Kg5 58. Qc6 Kf5 59. Qb5+ Kg6 60. Qe5 Qf3+ 61. Kf1 Qd1+ 62. Qe1 Qd3+ 63. Qe2 Qb1+ 64. Kg2 Qb7+ 65. Kh2 Qd7 66. Kg2 Qb7+ 67. Kh2 Qd7 68. Kg2 Qd4 69. Qc2+ Kf6 70. Kf1 Ke5 71. Qc7+ Kf5 72. Qf7+ Kg5 73. Ke2 Qe4+ 74. Kd2 Qd4+ 75. Kc2 Qe4+ 76. Kc3 Qe1+ 77. Kd4 Qa1+ 78. Kc5 Qa5+ 79. Kd6 Qb6+ 80. Ke5 Qb2+ 81. Ke6 Qb3+ 82. Ke7 Qxf7+ 83. Kxf7 Kf5 84. Ke7 Ke5 1/2-1/2

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.23"]
[Round "5"]
[White "Okkes, Menno"]
[Black "Van Foreest, Lucas"]
[Result "0-1"]
[ECO "E97"]
[WhiteElo "2368"]
[BlackElo "1952"]
[PlyCount "62"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 axb4 11. Bxb4 b6 12. a4 Nh5 13. g3 Bh6 14. a5 bxa5 15. Rxa5 Bh3 16. Re1 c5 17. Rxa8 Qxa8 18. Bxc5 dxc5 19. Nxe5 Bg7 20. f4 Qa3 21. Qd2 Rb8 22. Nb5 Qb3 23. d6 Bxe5 24. dxe7 Bf6 25. Bxh5 gxh5 26. Qd6 Qf3 27. Qxb8+ Kg7 28. Qf8+ Kg6 29. f5+ Kg5 30. Qg8+ Kh6 31. Qf8+ Bg7 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.22"]
[Round "4"]
[White "De Ruiter, Danny"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2182"]
[BlackElo "2368"]
[PlyCount "37"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 h6 11. Rc1 Bd6 12. Bf4 Nbd7 13. Nbd2 Nd5 14. Bxd6 cxd6 15. a4 Rc8 16. Qb3 Qa5 17. axb5 Rxc1+ 18. Rxc1 axb5 19. e3 1/2-1/2

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.21"]
[Round "3"]
[White "Okkes, Menno"]
[Black "Guramishvili, Sopiko"]
[Result "1/2-1/2"]
[ECO "E14"]
[WhiteElo "2368"]
[BlackElo "2418"]
[PlyCount "41"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. e3 Nf6 4. Nc3 Be7 5. b3 0-0 6. Bb2 b6 7. cxd5 exd5 8. Be2 c5 9. d4 Bb7 10. 0-0 Nbd7 11. Rc1 Rc8 12. dxc5 Nxc5 13. Nb5 a6 14. Nbd4 Re8 15. Nf5 Bf8 16. Ng3 b5 17. Nd4 Nfe4 18. Ndf5 Nxg3 19. Nxg3 b4 20. Qd4 Rc7 21. Rfd1 1/2-1/2

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.20"]
[Round "2"]
[White "Baskin, Robert"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2071"]
[BlackElo "2368"]
[PlyCount "70"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. 0-0 d6 8. c3 Bb6 9. Nbd2 0-0 10. h3 Be6 11. Bc2 h6 12. Re1 Re8 13. Nf1 d5 14. exd5 Qxd5 15. Ng3 Rad8 16. Be3 Bxe3 17. fxe3 Qd6 18. e4 Ne7 19. d4 Ng6 20. Ne2 Bc4 21. b3 Bxe2 22. Qxe2 Qc6 23. Qd3 exd4 24. cxd4 Nf4 25. Qd2 Nxe4 26. Qxf4 Qxc2 27. Ne5 Nf6 28. Rac1 Qxa2 29. Rxc7 Qxb3 30. Rf1 Rf8 31. Ra7 Qd5 32. Nf3 Qd6 33. Qf5 Rd7 34. Rxd7 Qxd7 35. Qf4 Rd8 0-1

[Event "Hoogeveen Unive op 16th"]
[Site "Hoogeveen"]
[Date "2012.10.19"]
[Round "1"]
[White "Okkes, Menno"]
[Black "Schoehuys, Erik"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2368"]
[BlackElo "2123"]
[PlyCount "38"]
[EventDate "2012.10.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 exd4 8. Nxd4 Re8 9. f3 Nc6 10. Be3 Nh5 11. Nxc6 bxc6 12. g4 Nf6 13. Qd2 Be6 14. Rad1 c5 15. g5 Nd7 16. f4 Bh3 17. Rfe1 f6 18. gxf6 Nxf6 19. Bf3 Ng4 1/2-1/2

[Event "Trans Europa Schach Express"]
[Site "Potsdam"]
[Date "2012.10.13"]
[Round "4.4"]
[White "Shelk, Alexander"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2348"]
[BlackElo "2368"]
[PlyCount "119"]
[EventDate "2012.10.13"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]
[WhiteTeam "Russia"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 c5 5. d5 Ba6 6. b3 exd5 7. cxd5 g6 8. Bb2 Bg7 9. e3 Bxf1 10. Kxf1 0-0 11. Nc3 d6 12. g3 a6 13. a4 Nbd7 14. h3 Qc7 15. Qd3 Qb7 16. Kg2 Rab8 17. e4 b5 18. axb5 axb5 19. Rhb1 Rfe8 20. Nd2 b4 21. Nd1 Ra8 22. Ne3 Rxa1 23. Bxa1 Nb6 24. Qb5 Rb8 25. Bxf6 Bxf6 26. Nec4 Qc7 27. Nxb6 Rxb6 28. Qd3 Rb8 29. Nc4 Ra8 30. Re1 Bd4 31. Re2 Ra1 32. e5 dxe5 33. Qf3 Ra7 34. d6 Qd8 35. Qd5 Rd7 36. Ra2 Qf6 37. f3 Kg7 38. h4 Qf5 39. Qe4 Qxe4 40. fxe4 f5 41. Kf3 Kf6 42. Ra8 h6 43. h5 gxh5 44. Rf8+ Ke6 45. exf5+ Kd5 46. Nb6+ Kxd6 47. Rf6+ Kc7 48. Nxd7 Kxd7 49. Rxh6 c4 50. bxc4 b3 51. Rxh5 Kd6 52. Ke4 Kc5 53. f6 Kxc4 54. f7 Bc5 55. Kxe5 b2 56. Rh1 Kd3 57. g4 Kc2 58. Rh2+ Kc3 59. Rxb2 Kxb2 60. g5 1-0

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2012.10.06"]
[Round "2.8"]
[White "Okkes, Menno"]
[Black "De Graaf, Dick"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2375"]
[BlackElo "2201"]
[PlyCount "111"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "En Passant"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 g6 2. e4 d6 3. c4 Bg7 4. d4 c5 5. Be2 cxd4 6. Nxd4 Nc6 7. Be3 Nf6 8. Nc3 Bd7 9. 0-0 a6 10. f3 h5 11. Qd2 h4 12. Nxc6 Bxc6 13. Nd5 Bxd5 14. cxd5 h3 15. g3 Nd7 16. Rac1 0-0 17. f4 Nf6 18. Bf3 Rc8 19. Rxc8 Qxc8 20. Rc1 Qd7 21. Qe2 e5 22. fxe5 dxe5 23. b3 Rc8 24. Rxc8+ Qxc8 25. Qc4 Qd7 26. Bb6 Ne8 27. Qa4 Qc8 28. Qc4 Qd7 29. Qf1 Bf8 30. g4 Qd6 31. Be3 Qa3 32. Qe2 Nd6 33. Kf2 Qb4 34. Bd2 Qc5+ 35. Kg3 Qc2 36. Kxh3 Qxa2 37. Qd3 Qa1 38. Bc3 Qc1 39. Bxe5 Qg5 40. Bg3 f5 41. e5 f4 42. Bh4 Qxe5 43. Qxg6+ Bg7 44. Qe6+ Kh7 45. Be7 Qc3 46. Kg2 Qc2+ 47. Qe2 Qxe2+ 48. Bxe2 Be5 49. h4 Kg7 50. Kf3 b5 51. Bd3 Kf7 52. Bxd6 Bxd6 53. g5 Kg8 54. Kg4 Kf7 55. h5 Ke7 56. h6 1-0

[Event "NED-chT 1213"]
[Site "Netherlands"]
[Date "2012.09.15"]
[Round "1.8"]
[White "Tereick, Benjamin"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2393"]
[BlackElo "2375"]
[PlyCount "67"]
[EventDate "2012.09.15"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]
[WhiteTeam "Voerendaal"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 c5 5. c4 e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 d6 9. Bg5 a6 10. Bxf6 Bxf6 11. Qf4 0-0 12. Rfd1 Be7 13. Ne4 Bxe4 14. Qxe4 Ra7 15. Rac1 Qc8 16. b3 Rc7 17. Qb1 Nd7 18. Nd4 Nf6 19. e3 Rd8 20. a4 d5 21. cxd5 Nxd5 22. Rxc7 Nxc7 23. Rc1 Ba3 24. Rc4 Qd7 25. Bc6 Qd6 26. Be4 f5 27. Rc6 Qe7 28. Qc2 Rd7 29. Bd3 Bc5 30. Nxe6 Nxe6 31. Bc4 Rd6 32. Rxd6 Qxd6 33. Qxf5 g6 34. Qf6 1-0

[Event "NED-chT 1112"]
[Site "Netherlands"]
[Date "2012.04.22"]
[Round "9.8"]
[White "Muhren, Bianca"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2307"]
[BlackElo "2386"]
[PlyCount "41"]
[EventDate "2011.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "De Stukkenjagers"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Be6 7. Ne5 dxc4 8. Nxc6 bxc6 9. Qa4 Qd7 10. Bxc4 Bxc4 11. Qxc4 e6 12. Bf4 Be7 13. 0-0 0-0 14. Rac1 Rfd8 15. Rfd1 Rac8 16. Qe2 Qb7 17. Be5 Rd7 18. Na4 Rd5 19. Nc3 Rd7 20. Na4 Rd5 21. Nc3 1/2-1/2

[Event "NED-chT 1112"]
[Site "Netherlands"]
[Date "2012.03.31"]
[Round "8.5"]
[White "Van der Heijden, Ton"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "D44"]
[WhiteElo "2314"]
[BlackElo "2386"]
[PlyCount "40"]
[EventDate "2011.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "BSG"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. e5 Nd5 10. Nd2 Nd7 11. Nde4 Bb7 12. Be2 Qb6 13. a4 0-0-0 14. 0-0 a6 15. axb5 cxb5 16. Nxd5 Bxd5 17. Nc3 Bb7 18. b3 Nb8 19. bxc4 Rxd4 20. Qc2 b4 1/2-1/2

[Event "NED-chT 1112"]
[Site "Netherlands"]
[Date "2012.03.10"]
[Round "7.7"]
[White "Okkes, Menno"]
[Black "Saltaev, Mihail"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "2386"]
[BlackElo "2484"]
[PlyCount "67"]
[EventDate "2011.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Voerendaal"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4 7. Bd3 dxc4 8. Bxc4 Nc6 9. 0-0 0-0 10. a3 Be7 11. Bg5 Nd5 12. Bxe7 Ncxe7 13. Rc1 b6 14. Bxd5 Nxd5 15. Nxd5 Qxd5 16. Rc7 Ba6 17. Re1 Rfc8 18. Qc2 Qd8 19. Rc1 Rxc7 20. Qxc7 Qxc7 21. Rxc7 Rc8 22. Rxc8+ Bxc8 23. Nd2 Kf8 24. f4 Ke7 25. Ne4 Bb7 26. Nc3 Bc6 27. Kf2 Kf6 28. h4 Kf5 29. g3 h6 30. Ke3 Kg4 31. Kf2 f6 32. Nd1 Kf5 33. Ke3 Kg4 34. Kf2 1/2-1/2

[Event "NED-chT 1112"]
[Site "Netherlands"]
[Date "2012.02.11"]
[Round "6.2"]
[White "Okkes, Menno"]
[Black "Burg, Twan"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "2386"]
[BlackElo "2462"]
[PlyCount "73"]
[EventDate "2011.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Calder HMC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nb3 Be7 8. Bg2 b5 9. Nd5 Nxd5 10. Qxd5 Ra7 11. Be3 Be6 12. Qd2 Rd7 13. 0-0 0-0 14. Rfd1 Qc7 15. a4 Rc8 16. axb5 axb5 17. Na5 Nc6 18. Rdc1 Bd8 19. Nxc6 Qxc6 20. b3 Rdc7 21. Qb4 Be7 22. Bf1 Rb7 23. Qa5 Qd7 24. c4 bxc4 25. Bxc4 h6 26. Bd5 Rxc1+ 27. Rxc1 Qb5 28. Qxb5 Rxb5 29. Bc4 Rb7 30. Ra1 Rc7 31. Ra7 Rxa7 32. Bxa7 Bxc4 33. bxc4 h5 34. h3 g6 35. g4 hxg4 36. hxg4 Kg7 37. Kg2 1/2-1/2

[Event "NED-chT 1112"]
[Site "Netherlands"]
[Date "2012.01.07"]
[Round "5.9"]
[White "Okkes, Menno"]
[Black "Bosman, Michiel"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2386"]
[BlackElo "2342"]
[PlyCount "80"]
[EventDate "2011.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Ne4 7. Nd2 Nc5 8. Nf3 Be7 9. Be2 0-0 10. 0-0 Ne6 11. Be3 Rb8 12. b3 a5 13. Qd2 Bb4 14. c3 Ba3 15. Rad1 Qe7 16. Qc2 f5 17. Nd4 Nxd4 18. cxd4 Kh8 19. f4 Qe6 20. Bc1 Bb4 21. Bd2 d5 22. Bxb4 axb4 23. Qc5 Bd7 24. Ra1 Kg8 25. a4 bxa3 26. Rxa3 Rb7 27. Rb1 Rfb8 28. b4 Qe8 29. Ra7 Qf8 30. Rxb7 Rxb7 31. Bd3 Qxc5 32. bxc5 Ra7 33. Kf2 Kf7 34. Ke3 h5 35. Be2 g6 36. Rb8 Be6 37. Bd3 Ke7 38. Rh8 Ra2 39. Be2 Ra3+ 40. Bd3 Ra2 1/2-1/2

[Event "NED-chT 1112"]
[Site "Netherlands"]
[Date "2011.12.17"]
[Round "4.7"]
[White "Kuijf, Marinus"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2423"]
[BlackElo "2386"]
[PlyCount "17"]
[EventDate "2011.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Rotterdam"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. cxd5 Nxd5 8. Qb3 Bxf3 9. gxf3 1/2-1/2

[Event "NED-chT 1112"]
[Site "Netherlands"]
[Date "2011.10.29"]
[Round "2.6"]
[White "Okkes, Menno"]
[Black "Nagel, Yvette"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2386"]
[BlackElo "1981"]
[PlyCount "95"]
[EventDate "2011.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Hilversum HSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 Nd5 7. Bd2 Nxc3 8. bxc3 Be7 9. Qg4 g6 10. Bd3 Nc6 11. Nxc6 dxc6 12. 0-0 Qc7 13. Rae1 Bd7 14. Bg5 Bxg5 15. Qxg5 c5 16. Re3 Bc6 17. Qf6 0-0 18. Rfe1 Qd8 19. Qf4 Qe7 20. h4 Rad8 21. h5 b5 22. Qh6 c4 23. hxg6 fxg6 24. Bxg6 Qg7 25. Bxh7+ Kh8 26. Qxg7+ Kxg7 27. Be4 Bxe4 28. Rxe4 Rd2 29. R4e2 Rfd8 30. f4 Rxe2 31. Rxe2 Rd1+ 32. Kf2 Ra1 33. g4 Rxa2 34. f5 a5 35. Ke3 b4 36. cxb4 axb4 37. Rd2 Ra5 38. Rd7+ Kf8 39. Kd4 b3 40. cxb3 cxb3 41. Rb7 Ra4+ 42. Kc5 Rxg4 43. f6 Ra4 44. Rxb3 Ra7 45. Kc6 Ra6+ 46. Rb6 Ra5 47. Kd6 Kf7 48. Rb7+ 1-0

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.22"]
[Round "9"]
[White "Okkes, Menno"]
[Black "Donchenko, Alexander"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2386"]
[BlackElo "2304"]
[PlyCount "103"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 Nbd7 8. Qc2 Re8 9. Nge2 Nf8 10. 0-0 h6 11. Bh4 Ne6 12. Rad1 c6 13. Kh1 b6 14. f3 Bb7 15. Bf5 Nc7 16. Bf2 Bc8 17. Ng3 Bf8 18. e4 g6 19. Bxc8 Rxc8 20. e5 Nh7 21. f4 f5 22. exf6 Qxf6 23. f5 g5 24. Rde1 Rxe1 25. Rxe1 Re8 26. Rc1 Rc8 27. Qd3 Qf7 28. Nce2 Nb5 29. Ng1 Nf6 30. Nf3 Ng4 31. Bg1 Bd6 32. Ne2 Qe8 33. a4 Nc7 34. h3 Nf6 35. Nc3 Ne4 36. Ne5 Bxe5 37. dxe5 Nxc3 38. Qxc3 c5 39. e6 d4 40. Qf3 Rd8 41. Rf1 Nd5 42. Bh2 Nf6 43. Be5 Qe7 44. Bxf6 Qxf6 45. Re1 Re8 46. Qd5 Kg7 47. b3 g4 48. Re4 Kh8 49. Qd7 Rg8 50. e7 d3 51. e8Q Qa1+ 52. Re1 1-0

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.21"]
[Round "8"]
[White "Mellema, Andries"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "2182"]
[BlackElo "2386"]
[PlyCount "84"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 g6 7. Nde2 Bg7 8. Bg2 0-0 9. 0-0 Rb8 10. h3 b5 11. Be3 a5 12. Nd4 Nxd4 13. Bxd4 b4 14. Nd5 Nxd5 15. Bxg7 Ne3 16. Qd3 Nxf1 17. Bxf8 Qxf8 18. Bxf1 Qg7 19. c3 bxc3 20. bxc3 Be6 21. Qd2 Rc8 22. Rc1 Qe5 23. Bg2 Qc5 24. Qb2 a4 25. a3 Rc6 26. Qb4 Qa7 27. Bf1 Rb6 28. Bb5 Qb7 29. c4 Qxe4 30. Re1 Qb7 31. Rxe6 fxe6 32. Qxa4 Qc7 33. Qa8+ Rb8 34. Qe4 e5 35. Qd5+ Kg7 36. a4 Qa5 37. Qe6 Rf8 38. f4 Qa7+ 39. Kg2 exf4 40. gxf4 Rxf4 41. Qe1 e5 42. a5 Qa8+ 0-1

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.20"]
[Round "7"]
[White "Okkes, Menno"]
[Black "Van Lommel, Patrick"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2386"]
[BlackElo "2111"]
[PlyCount "109"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. h3 Na6 7. Be3 e5 8. d5 Nc5 9. Nd2 a5 10. g4 Bd7 11. Be2 c6 12. g5 Ne8 13. Nb3 cxd5 14. Nxc5 d4 15. Nxd7 Qxd7 16. Bd2 dxc3 17. Bxc3 Nc7 18. Bg4 Qc6 19. Qd3 Ne6 20. Bxe6 fxe6 21. b3 b6 22. a4 Qc5 23. 0-0 Rf7 24. Rad1 Bf8 25. Bd2 Be7 26. Be3 Qc6 27. f3 Raf8 28. Kg2 Qc7 29. Rf2 Rf4 30. Bxf4 Rxf4 31. Kh2 Qc5 32. Rg2 Kf7 33. Rdd2 Ke8 34. Rg3 Kd7 35. Qe2 Kc7 36. Rd3 Kc6 37. Qg2 Kd7 38. Qd2 Kc6 39. Kg2 Kc7 40. Rg4 Rf7 41. h4 Qc6 42. Qe2 Qc5 43. Qe1 Kb7 44. Qf2 Qc6 45. Qe3 Bf8 46. Rd1 Qc7 47. Rh1 Qe7 48. Qd2 Qc7 49. h5 Qe7 50. hxg6 hxg6 51. Rh8 Rf4 52. Rxf4 Qxg5+ 53. Kf1 exf4 54. Rxf8 Qh6 55. Qxf4 1-0

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.19"]
[Round "6"]
[White "Van Dorp, Folke"]
[Black "Okkes, Menno"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2050"]
[BlackElo "2386"]
[PlyCount "32"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c4 e6 5. Nc3 dxc4 6. Bxc4 a6 7. a4 Nc6 8. 0-0 Be7 9. Qe2 cxd4 10. Rd1 e5 11. exd4 exd4 12. Nxd4 Nxd4 13. Qe5 Qd6 14. Qxd4 Qxd4 15. Rxd4 Bc5 16. Rd1 0-0 1/2-1/2

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.18"]
[Round "5"]
[White "Okkes, Menno"]
[Black "Sekandar, Kambiz"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2386"]
[BlackElo "1922"]
[PlyCount "98"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 dxc4 7. Bxc4 Qa5 8. d5 Ne5 9. Bb5+ Bd7 10. Bxd7+ Nexd7 11. Nf3 Nb6 12. Bxf6 gxf6 13. 0-0 0-0-0 14. Nd4 Nxd5 15. Rc1 Nxc3 16. Rxc3+ Kb8 17. Rd3 Bh6 18. b4 Qc7 19. Qh5 Bf4 20. Qxf7 Bxh2+ 21. Kh1 Be5 22. Rfd1 Bxd4 23. Rxd4 Rxd4 24. Rxd4 Rd8 25. Rxd8+ Qxd8 26. a3 h6 27. Qg6 Qd1+ 28. Kh2 Qd6+ 29. g3 a5 30. b5 Ka7 31. a4 Qd4 32. Qc2 Kb6 33. f3 h5 34. Kh3 Qg1 35. g4 Qh1+ 36. Kg3 h4+ 37. Kf4 Qe1 38. Kf5 h3 39. f4 Qg1 40. Qd2 h2 41. Qd8+ Kc5 42. Qxe7+ Kc4 43. Qe4+ Kc3 44. Qf3+ Kc4 45. Qe4+ Kb3 46. Qd3+ Kxa4 47. Qc4+ Ka3 48. Qc3+ Ka2 49. Qxa5+ Kb3 0-1

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.17"]
[Round "4"]
[White "Wagner, Dennis"]
[Black "Okkes, Menno"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2290"]
[BlackElo "2386"]
[PlyCount "57"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 0-0 7. 0-0 c6 8. Bf4 Nbd7 9. Nc3 dxc4 10. e4 Re8 11. a4 b6 12. Nd2 Ba6 13. Qe2 Bb4 14. Rfd1 Qe7 15. Nf3 h6 16. h4 Rac8 17. Qc2 Bb7 18. Ne5 Nxe5 19. dxe5 Nd7 20. Na2 c5 21. Qxc4 g5 22. hxg5 hxg5 23. Rxd7 Qxd7 24. Bxg5 Red8 25. Qe2 Bd2 26. Rd1 Qxa4 27. Qg4 Bxg5 28. Qxg5+ Kh7 29. Qh4+ 1-0

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.16"]
[Round "3"]
[White "Okkes, Menno"]
[Black "Goudriaan, Etienne"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2386"]
[BlackElo "2250"]
[PlyCount "54"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. c4 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Nf3 0-0 6. h3 c5 7. d5 e6 8. Bd3 exd5 9. exd5 Re8+ 10. Be3 Bh6 11. 0-0 Bxe3 12. fxe3 Qe7 13. e4 Nbd7 14. Rf2 Nh5 15. Qd2 Ne5 16. Nxe5 Qxe5 17. Ne2 Bd7 18. Qc3 a6 19. a4 Qxc3 20. Nxc3 Re7 21. Kh2 Rf8 22. Ra3 Kg7 23. Ra1 f5 24. exf5 Re3 25. Be2 Ng3 26. Rf3 Rxf3 27. Bxf3 Nxf5 1/2-1/2

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.15"]
[Round "2"]
[White "Hoffman, Ron"]
[Black "Okkes, Menno"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2121"]
[BlackElo "2386"]
[PlyCount "66"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Na3 Bxa3 6. bxa3 b5 7. Bb2 Bb7 8. a4 a6 9. axb5 axb5 10. a4 b4 11. Qc2 Bd5 12. 0-0 Nbd7 13. Rfe1 Nc5 14. e4 b3 15. Qc3 Ncxe4 16. Rxe4 Bxe4 17. Qxc4 Qd5 18. Qc3 0-0 19. a5 Ra6 20. Ra4 Rfa8 21. Rd4 Qxa5 22. Qe3 Qa2 23. Rxe4 Nxe4 24. Qd4 Nf6 25. Ne5 Qb1+ 26. Bf1 Ra4 27. Qc3 Ra1 28. Bxa1 Rxa1 29. Kg2 Qxf1+ 30. Kf3 Qd1+ 31. Kg2 Qh1+ 32. Kh3 Qf1+ 33. Kh4 g5+ 0-1

[Event "Hoogeveen Unive op 15th"]
[Site "Hoogeveen"]
[Date "2011.10.14"]
[Round "1"]
[White "Okkes, Menno"]
[Black "Van Laatum, Maarten"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "2386"]
[BlackElo "2115"]
[PlyCount "45"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. 0-0 0-0 9. h3 Nc6 10. Be3 Bd7 11. Qd2 Rc8 12. Rfd1 Re8 13. Rac1 Qa5 14. Nxc6 Bxc6 15. Nd5 Qxd2 16. Rxd2 Nd7 17. c4 Bxd5 18. exd5 b5 19. b3 bxc4 20. bxc4 Kf8 21. Rdc2 Rb8 22. Bf1 Nc5 23. h4 1/2-1/2

