[Event "NED-chT 2324"]
[Site "Netherlands"]
[Date "2023.09.16"]
[Round "1.10"]
[White "Hilwerda, Jonas"]
[Black "Theulings, Paul Peter"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2258"]
[BlackElo "2048"]
[PlyCount "103"]
[EventDate "2023.09.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Amstelveen Zukertort"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nc6 5. Nf3 dxc4 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Ndxb4 9. 0-0 0-0 10. a3 Nd5 11. Qxc4 Na5 12. Qc2 b6 13. b4 Nb7 14. e4 Ne7 15. Nbd2 Bd7 16. Rfd1 a5 17. Rdc1 c6 18. Qb2 axb4 19. axb4 Qc7 20. Ne5 Rxa1 21. Qxa1 Rc8 22. Ndc4 Be8 23. Qa7 Nd8 24. Qxb6 Qxb6 25. Nxb6 Rb8 26. Nec4 Nb7 27. Ra1 Nc8 28. Nxc8 Rxc8 29. f4 Rb8 30. Kf2 Nd8 31. Rb1 Kf8 32. Ke3 Ke7 33. Kd3 Bd7 34. Kc3 Ra8 35. Na5 Ra7 36. Kb3 Kd6 37. Rc1 Ra6 38. Bf3 Ke7 39. g4 f6 40. h4 Rb6 41. Ra1 h6 42. Nc4 Rb7 43. Kc3 Be8 44. Ra8 Rc7 45. e5 Nf7 46. Nd6 Bd7 47. Ne4 fxe5 48. fxe5 g5 49. Nf6 Bc8 50. h5 Nd8 51. Be4 Nf7 52. Kc4 1-0

[Event "Basel Easter op"]
[Site "Basel"]
[Date "2023.04.08"]
[Round "4"]
[White "Gloeckler, Christian"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2229"]
[BlackElo "2315"]
[PlyCount "101"]
[EventDate "2023.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. d3 Bg7 6. 0-0 e5 7. b3 Ne7 8. Bb2 d6 9. c3 0-0 10. Nbd2 a5 11. Qc2 Be6 12. d4 cxd4 13. cxd4 exd4 14. Bxd4 Bxd4 15. Nxd4 c5 16. Nxe6 fxe6 17. e5 d5 18. Qxc5 Rc8 19. Qe3 Nf5 20. Qd3 Qc7 21. Nf3 Qc3 22. Qxc3 Rxc3 23. Rfc1 Rfc8 24. Rxc3 Rxc3 25. Kf1 Kf7 26. Ke1 Rc2 27. g4 Ne7 28. Nd4 Rc3 29. f3 g5 30. Kd2 Rc5 31. h4 gxh4 32. f4 Ng6 33. Re1 h3 34. Rh1 Kg8 35. Ne2 Rb5 36. Rxh3 Rb4 37. Rf3 Kf7 38. a3 Rb7 39. Re3 Rc7 40. f5 exf5 41. gxf5 Ne7 42. Nd4 a4 43. Nb5 Rc5 44. Nd6+ Kf8 45. f6 d4 46. fxe7+ Kxe7 47. Nf5+ Ke6 48. Nxd4+ Kd5 49. e6 Rc8 50. e7 Re8 51. Nf5 1-0

[Event "Basel Easter op"]
[Site "Basel"]
[Date "2023.04.07"]
[Round "3"]
[White "Hilwerda, Jonas"]
[Black "Kappeler, Kaspar"]
[Result "1/2-1/2"]
[ECO "D34"]
[WhiteElo "2315"]
[BlackElo "2175"]
[PlyCount "50"]
[EventDate "2023.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. 0-0 Be7 8. b3 0-0 9. Bb2 Re8 10. Nc3 Bg4 11. dxc5 Bxc5 12. Rc1 Bf8 13. h3 Bxf3 14. Bxf3 Qd7 15. Nxd5 Nxd5 16. Bxd5 Qxh3 17. Bg2 Qe6 18. e3 Rad8 19. Qe2 Nb4 20. Ba1 Rd7 21. Rfd1 Red8 22. Rxd7 Qxd7 23. Bd4 b6 24. Kh2 Re8 25. Qc4 Qf5 1/2-1/2

[Event "Basel Easter op"]
[Site "Basel"]
[Date "2023.04.07"]
[Round "2"]
[White "Wyss, Jonas"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2205"]
[BlackElo "2315"]
[PlyCount "120"]
[EventDate "2023.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Nd5 Be7 11. Bxf6 Bxf6 12. c3 Ne7 13. Nc2 Nxd5 14. Qxd5 Ra7 15. a4 Bb7 16. Qd3 bxa4 17. Qe3 Qa8 18. Rxa4 Bc6 19. Rc4 Rd7 20. Nb4 Bb7 21. Be2 a5 22. Nd5 Bxd5 23. exd5 Qxd5 24. Rc8+ Rd8 25. Bf3 Qa2 26. Bc6+ Kf8 27. Rxd8+ Bxd8 28. 0-0 Qxb2 29. Qa7 Qb6 30. Qd7 g6 31. Qxd6+ Kg7 32. Qxe5+ Bf6 33. Qe4 Rc8 34. Bd5 Bxc3 35. g3 Qf6 36. Rd1 Rb8 37. Qf3 a4 38. Rd3 Qxf3 39. Rxf3 Rb1+ 40. Kg2 Bf6 41. Ra3 Ra1 42. Rxa1 Bxa1 43. f4 f5 44. Kf3 Kf6 45. g4 fxg4+ 46. Kxg4 a3 47. h3 Bc3 48. Ba2 Bb4 49. Bb1 Bf8 50. Ba2 Bg7 51. Bb1 Bf8 52. Ba2 Be7 53. Bb1 h6 54. Ba2 Bd8 55. Bb1 Ke7 56. f5 h5+ 57. Kf4 gxf5 58. Kxf5 h4 59. Ke5 Bc7+ 60. Kd4 Kf6 1/2-1/2

[Event "Basel Easter op"]
[Site "Basel"]
[Date "2023.04.06"]
[Round "1"]
[White "Hilwerda, Jonas"]
[Black "Braeunlin, Herbert"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2315"]
[BlackElo "2087"]
[PlyCount "57"]
[EventDate "2023.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 Be7 8. g4 h6 9. Be3 Be6 10. Qf3 Nbd7 11. 0-0-0 Qc7 12. Bd3 Nb6 13. Bxb6 Qxb6 14. Nd5 Bxd5 15. exd5 0-0-0 16. h4 Rhf8 17. Kb1 g6 18. h5 Qb4 19. hxg6 e4 20. Qf5+ Kb8 21. Be2 fxg6 22. Qxg6 Qb6 23. Rd4 Rg8 24. Qxh6 Nxg4 25. Bxg4 Rxg4 26. Qe6 Rdg8 27. a3 Bh4 28. Rxh4 Rxh4 29. Qxg8+ 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.03.11"]
[Round "7.7"]
[White "Hilwerda, Jonas"]
[Black "Los, Sander"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2289"]
[BlackElo "2255"]
[PlyCount "51"]
[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 "Groningen Combinatie"]
[BlackTeam "Amstelveen Zukertort"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. f4 a6 5. Nf3 b5 6. Bd3 Nd7 7. a4 b4 8. Ne2 Ngf6 9. 0-0 0-0 10. Ng3 c5 11. e5 Nd5 12. dxc5 Nxc5 13. Bxg6 hxg6 14. Qxd5 Bb7 15. Qc4 a5 16. f5 dxe5 17. Be3 e4 18. Ng5 Ba6 19. Qxc5 Bxf1 20. fxg6 fxg6 21. Nxf1 Rc8 22. Qb5 Rf5 23. Qa6 Rf6 24. Qe2 Rfc6 25. Qg4 Bh6 26. Ne6 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2023.02.11"]
[Round "6.7"]
[White "Van de Oudeweetering, Arthur"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2277"]
[BlackElo "2289"]
[PlyCount "51"]
[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 "Apeldoorn Amevo"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Na3 Nc6 7. Be2 cxd4 8. Nb5 Qd8 9. Nbxd4 Nxd4 10. Qxd4 Qxd4 11. Nxd4 Bd6 12. 0-0 a6 13. Rd1 Bc7 14. c4 Bd7 15. b3 0-0-0 16. Bb2 Ne4 17. Bd3 Nc5 18. Bc2 Be5 19. Rab1 Bf6 20. Ba1 Be8 21. Kf1 Nd7 22. Be4 Ne5 23. Ke2 Kc7 24. f3 h5 25. f4 Nc6 26. Nxc6 1/2-1/2

[Event "Groningen University Challenge"]
[Site "Groningen"]
[Date "2022.12.26"]
[Round "2"]
[White "Hilwerda, Jonas"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2274"]
[BlackElo "2384"]
[PlyCount "54"]
[EventDate "2022.12.26"]
[EventType "match"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 c5 6. 0-0 Nc6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 c3 10. bxc3 0-0 11. Nb3 Be7 12. Nfd4 Nd5 13. Nxc6 bxc6 14. Bd2 Ba6 15. e4 Nb6 16. Na5 Bb5 17. e5 Rac8 18. Be3 Nd5 19. a4 Nxe3 20. fxe3 Ba6 21. Nxc6 Bc5 22. Rd7 Bxe3+ 23. Kh1 Kh8 24. Re1 Bf2 25. Rc1 Be3 26. Re1 Bf2 27. Rc1 Be3 1/2-1/2

[Event "Groningen University Challenge"]
[Site "Groningen"]
[Date "2022.12.26"]
[Round "4"]
[White "Hilwerda, Jonas"]
[Black "Van der Wiel, John"]
[Result "1/2-1/2"]
[ECO "A63"]
[WhiteElo "2274"]
[BlackElo "2384"]
[PlyCount "48"]
[EventDate "2022.12.26"]
[EventType "match"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 0-0 9. 0-0 a6 10. a4 Nbd7 11. Nd2 Rb8 12. Nc4 Ne8 13. a5 Ne5 14. Nb6 Nd7 15. Nc4 Ne5 16. Nb6 Nd7 17. Nca4 Nxb6 18. Nxb6 Bd7 19. Ra2 Bb5 20. b4 cxb4 21. Bd2 Nc7 22. Bxb4 Na8 23. Nxa8 Rxa8 24. Qb3 Re8 1/2-1/2

[Event "Groningen University Challenge"]
[Site "Groningen"]
[Date "2022.12.26"]
[Round "1"]
[White "Van der Wiel, John"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2384"]
[BlackElo "2274"]
[PlyCount "89"]
[EventDate "2022.12.26"]
[EventType "match"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 0-0 11. 0-0 Bg4 12. f3 Bh5 13. Bg5 Qb6+ 14. Kh1 Ne4 15. Nxe4 dxe4 16. Bxe4 Qxb2 17. Qb1 Qb6 18. Qxb6 axb6 19. Rfb1 Bg6 20. Bxc6 bxc6 21. Rxb6 f6 22. Bh4 Bxc2 23. Rxc6 Rfc8 24. Rxc8+ Rxc8 25. h3 Rb8 26. Be1 Rb1 27. Rxb1 Bxb1 28. a4 Kf7 29. Kg1 Ke6 30. Kf2 Kd5 31. Ke3 g6 32. a5 f5 33. h4 Kc6 34. Kd4 Bc2 35. Bd2 Kb5 36. Ke3 Ka6 37. Kf4 Bd3 38. Kg5 Bf1 39. g3 Be2 40. f4 h5 41. Kxg6 Bg4 42. Be1 Kb7 43. Kf6 Ka8 44. Ke6 Bh3 45. Kd6 1/2-1/2

[Event "Groningen University Challenge"]
[Site "Groningen"]
[Date "2022.12.26"]
[Round "3"]
[White "Van der Wiel, John"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2384"]
[BlackElo "2274"]
[PlyCount "57"]
[EventDate "2022.12.26"]
[EventType "match"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. Bd3 f5 11. exf6 gxf6 12. Qh5+ Kd8 13. Qe2 f5 14. Ng5 Rg8 15. a3 a5 16. c4 Nf6 17. Nf7+ Ke8 18. Be3 c5 19. Ng5 Be7 20. 0-0 Bb7 21. Rad1 h6 22. Nf3 Rb8 23. b4 axb4 24. axb4 Qxb4 25. Rb1 Qa3 26. Ne5 d6 27. Nc6 Kf7 28. Ra1 Qb3 29. Rfb1 1/2-1/2

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.12.17"]
[Round "5.9"]
[White "Hilwerda, Jonas"]
[Black "Van Baar, Esper"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2289"]
[BlackElo "2219"]
[PlyCount "67"]
[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 "Groningen Combinatie"]
[BlackTeam "Kennemer Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 Nc6 7. g4 g6 8. Be3 Nxd4 9. Bxd4 Bh6 10. Nd5 0-0 11. Nxf6+ exf6 12. Qf3 Bg7 13. Bc4 Be6 14. Bb3 Re8 15. 0-0-0 Bxb3 16. axb3 Re6 17. Qd3 a5 18. Kb1 Qe8 19. f3 b5 20. h4 b4 21. h5 a4 22. h6 Bf8 23. bxa4 Qxa4 24. b3 Qa2+ 25. Kc1 Qa5 26. f4 d5 27. e5 Bc5 28. exf6 Re4 29. Bxc5 Qxc5 30. Rhe1 Qa5 31. Rxe4 dxe4 32. Qd4 e3 33. Rd3 Re8 34. Rxe3 1-0

[Event "BEL-chT 2223"]
[Site "Belgium"]
[Date "2022.12.04"]
[Round "5.1"]
[White "Fontaine, Quentin"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2346"]
[BlackElo "2277"]
[PlyCount "84"]
[EventDate "2022.09.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "BEL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Liege Crelel"]
[BlackTeam "Wetteren"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "BEL"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 e6 4. 0-0 d5 5. Bb5 Bd6 6. e5 Be7 7. Bxc6+ bxc6 8. d3 h5 9. c4 Nh6 10. Nc3 Qa5 11. Qa4 Qxa4 12. Nxa4 Nf5 13. b3 Nd4 14. Nxd4 cxd4 15. Bb2 dxc4 16. dxc4 c5 17. Ba3 Bd7 18. Bxc5 Bxa4 19. Bxe7 Kxe7 20. bxa4 Rhc8 21. Rab1 Rab8 22. Rb3 Rb6 23. Rc1 Rbc6 24. Rb7+ R8c7 25. Rxc7+ Rxc7 26. Kf1 Rc5 27. f4 Ra5 28. c5 Rxa4 29. c6 Kd8 30. Rb1 Kc7 31. Rb7+ Kxc6 32. Rxf7 Rxa2 33. f5 exf5 34. Rxf5 Kd5 35. Rg5 d3 36. Ke1 a5 37. Rxg7 Kxe5 38. Rg5+ Kd4 39. Rxh5 a4 40. g4 a3 41. Ra5 Re2+ 42. Kd1 a2 0-1

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.26"]
[Round "4.9"]
[White "Rademakers, Evert"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2250"]
[BlackElo "2289"]
[PlyCount "51"]
[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. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bg5 f6 5. Bd2 Nc6 6. Nc3 Bf5 7. Nf3 e6 8. g3 Nge7 9. Bg2 g5 10. 0-0 Ng6 11. e3 Bd3 12. Re1 g4 13. Nh4 Nxh4 14. gxh4 f5 15. Bc1 Bc4 16. b3 Ba6 17. e4 dxe4 18. d5 Ne5 19. Bg5 Qd6 20. Rxe4 fxe4 21. Nxe4 Qb6 22. Nf6+ Kf7 23. dxe6+ Kg7 24. Nxg4 Bd3 25. Bf6+ Kg8 26. Bxe5 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.11.05"]
[Round "3.2"]
[White "Geirnaert, Steven"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2401"]
[BlackElo "2289"]
[PlyCount "71"]
[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 "Charlois Europoort"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. f3 e6 4. e4 c5 5. d5 d6 6. Nc3 Bg7 7. Nge2 exd5 8. cxd5 a6 9. a4 Nbd7 10. Ng3 h5 11. Be2 h4 12. Nf1 Rb8 13. a5 Nh5 14. g4 hxg3 15. hxg3 b5 16. axb6 Qxb6 17. f4 Qb4 18. Qc2 c4 19. g4 Nhf6 20. Rxh8+ Bxh8 21. Ne3 Nc5 22. e5 dxe5 23. fxe5 Nfe4 24. Nxc4 Bxg4 25. Bd2 Nxd2 26. Qxd2 Nb3 27. Qh6 Bxe2 28. Qxh8+ Kd7 29. e6+ Kc7 30. d6+ Kb7 31. Qxb8+ Kxb8 32. exf7 Bxc4 33. f8Q+ Kb7 34. Qe7+ Kb8 35. Qc7+ Ka8 36. Ra4 1-0

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.10.08"]
[Round "2.8"]
[White "Hilwerda, Jonas"]
[Black "De Jong, Jan Willem"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2289"]
[BlackElo "2407"]
[PlyCount "102"]
[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 "Groningen Combinatie"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Nb6 9. Nc3 Ba6 10. Qe4 f6 11. c5 Bxf1 12. Kxf1 Qxc5 13. exf6+ Kf7 14. fxg7 Bxg7 15. h4 Qc4+ 16. Qxc4+ Nxc4 17. Rh3 a5 18. Rf3+ Ke8 19. Bg5 d6 20. h5 h6 21. Re1+ Ne5 22. Bc1 Rf8 23. Rg3 Kf7 24. f4 Nd7 25. Rg6 Rfe8 26. Ne4 a4 27. f5 d5 28. Bxh6 Bxh6 29. Rxh6 dxe4 30. Rh7+ Kf6 31. Rxd7 Kxf5 32. Rf7+ Kg5 33. Rg7+ Kf4 34. Rf7+ Kg5 35. Rg7+ Kf4 36. Rf7+ Kg5 37. Re3 Rf8 38. Rxf8 Rxf8+ 39. Ke2 Rb8 40. b3 Kxh5 41. bxa4 Rb2+ 42. Kf1 Rxa2 43. Rxe4 Kg5 44. g4 Kh4 45. Ke1 Kg3 46. Kd1 Kf3 47. Rc4 Ke3 48. Kc1 Kd3 49. Kb1 Rg2 50. Rxc6 Rxg4 51. Rxc7 Rxa4 1/2-1/2

[Event "NED-chT 2223"]
[Site "Netherlands"]
[Date "2022.09.17"]
[Round "1.8"]
[White "Gallasch, Jonas"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "D90"]
[WhiteElo "2275"]
[BlackElo "2289"]
[PlyCount "74"]
[EventDate "2022.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]
[WhiteTeam "Zuid Limburg"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 0-0 6. cxd5 Nxd5 7. h5 c5 8. hxg6 hxg6 9. Bh6 Bxh6 10. Rxh6 Nc6 11. Qd2 cxd4 12. Nxd4 Nxc3 13. bxc3 e5 14. Rh1 Nxd4 15. Rd1 Be6 16. cxd4 Qxd4 17. Qh6 Qc3+ 18. Qd2 Rac8 19. Rh4 Qxd2+ 20. Rxd2 Rc1+ 21. Rd1 Rxd1+ 22. Kxd1 Bxa2 23. Rb4 b6 24. e3 Rc8 25. Kd2 Rc7 26. Bd3 Kg7 27. g4 Kf6 28. f4 exf4 29. exf4 Be6 30. g5+ Ke7 31. Ke3 Kd6 32. Kd4 Rc5 33. Ra4 a5 34. Ra1 Bb3 35. Rh1 a4 36. Rh8 a3 37. Ra8 a2 0-1

[Event "Copenhagen Obro op"]
[Site "Copenhagen"]
[Date "2022.08.28"]
[Round "9"]
[White "Johansson, Thomas"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "2209"]
[BlackElo "2273"]
[PlyCount "66"]
[EventDate "2022.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. a4 c5 7. c3 cxd4 8. cxd4 Nc6 9. Nc3 Ne4 10. Bf4 Bf5 11. Ra3 Na5 12. Qc1 Rc8 13. Bh6 Qb6 14. Bxg7 Kxg7 15. Qf4 Qxb2 16. Nxe4 Qxa3 17. Nc5 b6 18. g4 Bxg4 19. Ne5 Be6 20. Ncd3 Qd6 21. Qh4 f6 22. Nf3 Rc2 23. Nf4 Bf7 24. Qg4 e5 25. Nh4 Kh8 26. Nfxg6+ Bxg6 27. Nxg6+ hxg6 28. Qxg6 Rc7 29. dxe5 Qxe5 30. Qh6+ Kg8 31. Rd1 Rh7 32. Bxd5+ Qxd5 33. Qg6+ Rg7 0-1

[Event "Copenhagen Obro op"]
[Site "Copenhagen"]
[Date "2022.08.27"]
[Round "8"]
[White "Hilwerda, Jonas"]
[Black "Vesterli, Michael"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2273"]
[BlackElo "2244"]
[PlyCount "37"]
[EventDate "2022.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 Nf6 6. Ng5 0-0 7. h4 d6 8. Nd5 Rb8 9. Nxf6+ Bxf6 10. Qh5 h6 11. Nxf7 Rxf7 12. Qxf7+ Kh7 13. Bg5 Bg4 14. f3 Bxg5 15. hxg5 Qxg5 16. fxg4 Nd4 17. Qf2 Qxg4 18. Rh4 Qg5 19. Rh3 1-0

[Event "Copenhagen Obro op"]
[Site "Copenhagen"]
[Date "2022.08.25"]
[Round "6"]
[White "Jacobsen, Mikkel Manosri"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2320"]
[BlackElo "2273"]
[PlyCount "99"]
[EventDate "2022.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. e3 0-0 5. Be2 d6 6. 0-0 Bf5 7. Nh4 Bc8 8. Nc3 e5 9. Nf3 Bf5 10. b4 e4 11. Nd2 h5 12. Bb2 Nbd7 13. Qb3 Re8 14. Rfc1 Nf8 15. a4 h4 16. h3 Qd7 17. a5 N8h7 18. a6 b6 19. Qd1 c6 20. Ra3 g5 21. Nf1 g4 22. hxg4 Nxg4 23. b5 c5 24. Nd5 Kh8 25. Ba1 Rg8 26. Nh2 Nh6 27. Kh1 Qd8 28. Rc2 Qg5 29. Nf4 Nf8 30. Bf1 Kh7 31. Qh5 Ne6 32. Qxg5 Nxg5 33. dxc5 dxc5 34. Bxg7 Kxg7 35. Rd2 Rgd8 36. Raa2 Ng8 37. Nd5 Be6 38. Nc7 Rac8 39. Nxe6+ Nxe6 40. Ng4 f6 41. f3 Nh6 42. Nxh6 Kxh6 43. Kh2 exf3 44. gxf3 Ng5 45. Bg2 Nf7 46. f4 Nd6 47. Bd5 Nf5 48. e4 Nd4 49. Rg2 Rc7 50. Rg4 1-0

[Event "Copenhagen Obro op"]
[Site "Copenhagen"]
[Date "2022.08.25"]
[Round "5"]
[White "Rostgaard, Tobias Valentin"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2332"]
[BlackElo "2273"]
[PlyCount "70"]
[EventDate "2022.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. 0-0 Bg7 6. Re1 Nf6 7. e5 Nd5 8. c4 Nc7 9. d4 cxd4 10. Qxd4 Ne6 11. Qh4 d6 12. Nc3 dxe5 13. Nxe5 Qd4 14. Re4 Qd6 15. Nf3 Bf6 16. Qh6 Bg7 17. Qh4 Bf6 18. Qh6 Bg7 19. Qd2 0-0 20. Qe2 f5 21. Re3 Bf6 22. Rd3 Nf4 23. Bxf4 Qxf4 24. b3 e5 25. g3 Qg4 26. Rd2 e4 27. Nd4 Qg5 28. Qe3 Qh5 29. Nxc6 Bb7 30. Rd6 Bxc6 31. Rxc6 Rad8 32. Rxf6 Rxf6 33. Nd5 Rxd5 34. cxd5 f4 35. Qxe4 f3 1-0

[Event "Copenhagen Obro op"]
[Site "Copenhagen"]
[Date "2022.08.24"]
[Round "4"]
[White "Hilwerda, Jonas"]
[Black "Loftgaard, Mikkel Vinh"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "2273"]
[BlackElo "2238"]
[PlyCount "122"]
[EventDate "2022.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. Bf4 Nxe4 8. Qf3 d5 9. Nc7+ Kf8 10. Nxa8 Qa5 11. a3 Nxc3 12. Rc1 Bxa3 13. bxa3 Ne4+ 14. c3 e5 15. Be3 h5 16. Qe2 Nxc3 17. Qb2 Ne4+ 18. Bd2 Qd8 19. Bb4+ Kg8 20. Bb5 Bd7 21. Bxc6 Bxc6 22. Qxe5 Qxa8 23. f3 Nf6 24. 0-0 Rh6 25. Bc3 Rg6 26. Bd4 a5 27. Rfe1 Qa6 28. Re3 Qb5 29. h3 Bd7 30. Kh2 a4 31. Bc5 Qa5 32. Bb4 Qb6 33. Bc5 Qa5 34. Bb4 Qb6 35. Re2 Bb5 36. Rd2 Bc6 37. Qe7 Qa7 38. Qf8+ Kh7 39. Re1 Bd7 40. Qe7 Be6 41. Qc7 Qa6 42. Rd4 Qb5 43. Qc5 Qa6 44. Ba5 Nd7 45. Qc3 Qd6+ 46. f4 Bf5 47. Qf3 Nf6 48. Bb4 Qb8 49. Qe3 Be4 50. Re2 h4 51. Be1 Rg4 52. g3 hxg3+ 53. Bxg3 Qc8 54. Qd2 Rg6 55. f5 Qxf5 56. Qf4 Qe6 57. Rb4 Nh5 58. Qh4 Rh6 59. Re3 Nf6 60. Rbxe4 dxe4 61. Qf4 Ng4+ 0-1

[Event "Copenhagen Obro op"]
[Site "Copenhagen"]
[Date "2022.08.23"]
[Round "3"]
[White "Hamitevici, Vladimir"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2473"]
[BlackElo "2273"]
[PlyCount "124"]
[EventDate "2022.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 c5 3. g3 Nc6 4. Bg2 Bg7 5. d3 d6 6. Qd2 Nf6 7. b3 0-0 8. Bb2 Bd7 9. e3 a6 10. Nge2 Rb8 11. h3 b5 12. 0-0 e6 13. g4 h6 14. Ng3 Ne7 15. f4 d5 16. cxd5 exd5 17. e4 b4 18. Nce2 dxe4 19. dxe4 Bb5 20. Qc1 Bxe2 21. Nxe2 Qd3 22. Qc4 Qe3+ 23. Kh1 Nxe4 24. Bxg7 Nd2 25. Qxa6 Kxg7 26. Rfe1 Nf3 27. Red1 Rfd8 28. Ng1 Nh4 29. Re1 Qg3 30. Qe2 Nd5 31. Bxd5 Rxd5 32. Qh2 Qxh2+ 33. Kxh2 Rd2+ 34. Re2 Rbd8 35. Kg3 g5 36. fxg5 hxg5 37. Rc1 Rd1 38. Rxd1 Rxd1 39. Kf2 Rc1 40. Nf3 Nxf3 41. Kxf3 Rc3+ 42. Ke4 Rxh3 43. Rc2 Rg3 44. Kf5 f6 45. Rxc5 Rf3+ 46. Ke6 Rf4 47. Rc4 Kg6 48. Kd5 f5 49. Rc6+ Kf7 50. Rc7+ Kf6 51. Rc6+ Ke7 52. Ke5 Rxg4 53. Kxf5 Rg2 54. Rb6 Rxa2 55. Kxg5 Rb2 56. Rxb4 Kd6 57. Kf4 Kc5 58. Rb8 Kd4 59. Rd8+ Kc3 60. Rc8+ Kxb3 61. Rb8+ Kc3 62. Rxb2 Kxb2 1/2-1/2

[Event "Copenhagen Obro op"]
[Site "Copenhagen"]
[Date "2022.08.23"]
[Round "2"]
[White "Hilwerda, Jonas"]
[Black "Korley, Kassa"]
[Result "0-1"]
[ECO "C43"]
[WhiteElo "2273"]
[BlackElo "2432"]
[PlyCount "82"]
[EventDate "2022.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nc3 Nxe5 7. dxe5 Nxc3 8. bxc3 Bc5 9. 0-0 Be6 10. Rb1 b6 11. Kh1 Qd7 12. Qh5 0-0-0 13. a4 Qxa4 14. Bg5 g6 15. Qe2 Qg4 16. Qxg4 Bxg4 17. Bxd8 Kxd8 18. h3 Bd7 19. f4 a5 20. f5 a4 21. g4 gxf5 22. gxf5 Rg8 23. Rf4 a3 24. Rg4 Re8 25. Re1 Bd6 26. e6 fxe6 27. fxe6 Rxe6 28. Rg8+ Ke7 29. Rf1 Rf6 30. Re1+ Kf7 31. Reg1 Bf8 32. Rh8 h6 33. Re1 Bf5 34. Bxf5 Rxf5 35. Rg1 Bd6 36. Rh7+ Ke6 37. Rxh6+ Kd7 38. Rh7+ Kc6 39. Ra1 Rf3 40. h4 Rxc3 41. Ra2 b5 0-1

[Event "Copenhagen Obro op"]
[Site "Copenhagen"]
[Date "2022.08.22"]
[Round "1"]
[White "Hilwerda, Jonas"]
[Black "Hector, Jonny"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2273"]
[BlackElo "2463"]
[PlyCount "133"]
[EventDate "2022.08.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "DEN"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Ba6 9. b3 0-0-0 10. Bb2 f6 11. g3 fxe5 12. Bg2 h5 13. 0-0 h4 14. Qxe5 hxg3 15. hxg3 Qxe5 16. Bxe5 Re8 17. Bd4 Nb4 18. Na3 Rh5 19. Rfe1 Rxe1+ 20. Rxe1 Kd8 21. Be4 Rg5 22. f4 Rxg3+ 23. Kf2 Rh3 24. Kg2 Rh6 25. Nc2 Nxc2 26. Bxc2 c5 27. Bc3 Bb7+ 28. Kg3 Rh1 29. Rxh1 Bxh1 30. Kg4 c6 31. Kg5 d5 32. Kg6 d4 33. Ba5+ Ke8 34. Bc7 Bf3 35. Bd3 Bg4 36. f5 Ke7 37. Be5 a5 38. Bc7 Bd1 39. Bxa5 Kd7 40. Bb6 Bd6 41. Kxg7 Be5+ 42. Kg6 Bd6 43. Ba5 Bf4 44. Be1 Bg4 45. Bh4 Bd6 46. a4 Bd1 47. f6 Bxb3 48. a5 Bd1 49. f7 Bf8 50. Kh7 Bg4 51. Kg8 Bd6 52. f8Q Bxf8 53. Kxf8 Kd6 54. Be7+ Kc7 55. Bxc5 Kb7 56. Bxd4 Bf3 57. Ke7 Bg2 58. Kd6 Bf3 59. Ke7 Bg2 60. Kd6 Bf3 61. Bb6 Bg2 62. c5 Bf3 63. a6+ Ka8 64. Bf5 Be2 65. Bc8 Bb5 66. Kc7 Bxa6 67. Bd7 1-0

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.29"]
[Round "9"]
[White "Hilwerda, Jonas"]
[Black "Thorsbro, Peter"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2275"]
[BlackElo "2192"]
[PlyCount "62"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Nb6 9. Nc3 Qe6 10. Qe4 d5 11. exd6 cxd6 12. Be3 Qxe4 13. Nxe4 f5 14. Nc3 Be6 15. b3 Be7 16. 0-0-0 0-0 17. g3 d5 18. cxd5 Nxd5 19. Bd4 Ba3+ 20. Kb1 Nxc3+ 21. Bxc3 f4 22. Bd3 Rad8 23. Be4 Bc5 24. gxf4 Bxf2 25. Be5 Bg4 26. Rxd8 Rxd8 27. Kc2 c5 28. Bd3 Bd4 29. Re1 Bf2 30. Rh1 Bd4 31. Re1 Bf2 1/2-1/2

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.29"]
[Round "8"]
[White "Vinter Schou, Uffe"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2321"]
[BlackElo "2275"]
[PlyCount "77"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. c3 Nf6 5. Qe2 e5 6. 0-0 Bg7 7. d3 0-0 8. a3 Qc7 9. b4 cxb4 10. axb4 d5 11. Bg5 dxe4 12. dxe4 Nh5 13. g3 Bg4 14. Nbd2 Rfc8 15. Bc4 Nd8 16. Rfc1 Kh8 17. Bd5 Nf6 18. Bb3 Nh5 19. Ra5 Nc6 20. Raa1 f5 21. Be6 Rf8 22. Qc4 Qd6 23. Be3 Rf6 24. Ng5 Nd8 25. exf5 Bxf5 26. Bd5 Rc8 27. Qb3 Rf8 28. Bc5 Rxc5 29. bxc5 Qxc5 30. Nge4 Bxe4 31. Nxe4 Qe7 32. Rxa7 Nf6 33. Nxf6 Bxf6 34. Qb4 Qg7 35. Ra8 Be7 36. Qb6 Qh6 37. Rd1 Qh5 38. Bb3 Qg5 39. h4 1-0

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.28"]
[Round "6"]
[White "Bogdanov, Egor"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2415"]
[BlackElo "2275"]
[PlyCount "98"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 e5 6. d4 cxd4 7. cxd4 exd4 8. Bf4 a6 9. Bc4 d6 10. Nbd2 Nf6 11. Re1 0-0 12. e5 dxe5 13. Nxe5 Na5 14. Be2 Bf5 15. Nb3 Nxb3 16. Qxb3 Be6 17. Qxb7 Nd5 18. Nc6 Qd7 19. Qxd7 Bxd7 20. Ne5 Nxf4 21. Nxd7 Rfd8 22. Bf3 Rac8 23. Ne5 Bxe5 24. Rxe5 Rc2 25. Rd1 d3 26. Kf1 Rxb2 27. Re4 g5 28. h4 h6 29. Ra4 Rc8 30. Rxa6 Rcc2 31. Rxh6 g4 32. Be4 f5 33. Bc6 Rxf2+ 34. Kg1 g3 35. Kh1 Ne2 36. Rd6 Nc3 37. R6xd3 Nxd1 38. Rxd1 Rb4 39. Kg1 Kg7 40. h5 Rxa2 41. Rf1 f4 42. Rd1 Rab2 43. Kf1 Rb1 44. Rxb1 Rxb1+ 45. Ke2 Rb3 46. Bd5 Re3+ 47. Kf1 Kh6 48. Bf7 f3 49. Bc4 Rc3 0-1

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.28"]
[Round "7"]
[White "Hilwerda, Jonas"]
[Black "Easwaralingam, Adesh"]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "2275"]
[BlackElo "2116"]
[PlyCount "68"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. g4 b5 8. Nxc6 Qxc6 9. Qd2 b4 10. Ne2 Qxe4 11. Rg1 Qc6 12. 0-0-0 Bb7 13. Nf4 d5 14. Bd4 Nf6 15. Bd3 0-0-0 16. Nh5 Ne4 17. Qe3 f6 18. Bxe4 dxe4 19. g5 f5 20. Nxg7 f4 21. Qb3 Bxg7 22. Bxg7 Rhg8 23. Bf6 Rxd1+ 24. Rxd1 a5 25. Qh3 Kb8 26. Be5+ Ka8 27. Rd6 Qb5 28. Bxf4 Bd5 29. Qe3 Rc8 30. Rb6 Qc4 31. c3 Qf1+ 32. Kd2 Qc4 33. Bd6 Bb7 34. cxb4 Qc1+ 0-1

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.27"]
[Round "4"]
[White "Fries Nielsen, Jens Ove"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2370"]
[BlackElo "2275"]
[PlyCount "63"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nde2 Bc5 7. Be3 Bxe3 8. fxe3 0-0 9. Qd2 d6 10. Ng3 Be6 11. Bd3 Nb4 12. 0-0 Nxd3 13. Qxd3 d5 14. exd5 Nxd5 15. Rad1 Nf6 16. Nce4 Nxe4 17. Qxe4 Qc7 18. Rf2 Rad8 19. Rdf1 f6 20. b3 Rd7 21. c4 Rfd8 22. Qf3 Rd2 23. Ne4 Rxf2 24. Qxf2 Bf7 25. Nc3 Rd3 26. Qc2 Bg6 27. Qc1 Qa5 28. Na4 Bh5 29. c5 Be2 30. Re1 Qd2 31. Qxd2 Rxd2 32. Nc3 1/2-1/2

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.27"]
[Round "5"]
[White "Hilwerda, Jonas"]
[Black "Nielsen, Rogvi Egilstoft"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2275"]
[BlackElo "2334"]
[PlyCount "81"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 e6 5. Qe2 c5 6. c3 d5 7. e5 Nc6 8. Be3 Qb6 9. Nbd2 Nh6 10. Bxh6 gxh6 11. Qe3 b4 12. 0-0 a5 13. a3 Ba6 14. Bxa6 cxd4 15. cxd4 Rxa6 16. Rfc1 Bg7 17. Nb3 0-0 18. Nc5 Ra7 19. Ne1 Rc8 20. Ned3 Rac7 21. Rc2 Kh8 22. Rac1 Bf8 23. a4 Qa7 24. g4 Be7 25. Kf1 Kg7 26. Kg2 Kg8 27. Kg3 Kh8 28. h4 Qa8 29. Kh3 Rg8 30. Nb3 Qa6 31. Nf4 Bd8 32. Nh5 Rg6 33. f4 Qc8 34. Qd3 f5 35. exf6 Bxf6 36. Nxa5 e5 37. f5 Rxg4 38. Kxg4 e4 39. Qb5 Qg8+ 40. Kh3 Qc8 41. Qxd5 1-0

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.26"]
[Round "2"]
[White "Hilwerda, Jonas"]
[Black "Storme, Isak"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2275"]
[BlackElo "2388"]
[PlyCount "46"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Ba6 9. b3 g6 10. Ba3 Nb4 11. Bb2 Bg7 12. a3 Nd5 13. Nd2 0-0 14. 0-0-0 Rfe8 15. Qf3 Nb6 16. Ne4 Bxe5 17. Bxe5 Qxe5 18. Nf6+ Kf8 19. Nxe8 Qa1+ 20. Kc2 Qa2+ 21. Kc1 Qa1+ 22. Kc2 Qa2+ 23. Kc1 Qa1+ 1/2-1/2

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.26"]
[Round "3"]
[White "Ramsdal, Jens Albert"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2267"]
[BlackElo "2275"]
[PlyCount "83"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 Bg7 6. h5 Nxc3 7. bxc3 c5 8. e4 Nc6 9. Be2 Bg4 10. Qb3 0-0 11. hxg6 hxg6 12. Ba3 b6 13. Rh4 Bxf3 14. gxf3 e6 15. Rh3 Qg5 16. Rg3 Qh4 17. 0-0-0 Be5 18. Rg2 Rfd8 19. Kb1 Na5 20. Qc2 c4 21. Rf1 Qh6 22. Rd1 Bf4 23. Bc1 Rd7 24. e5 Rad8 25. Rdg1 Kg7 26. Qe4 Bxd2 27. Bb2 b5 28. Rg4 Qh5 29. Rh4 Qf5 30. Qxf5 exf5 31. Rgh1 b4 32. cxb4 c3 33. Ba3 c2+ 34. Kxc2 Rc8+ 35. Kb1 Rc3 36. Bb2 Nb7 37. e6 Rdc7 38. Rd1 Bg5 39. Rc4 Rc6 40. Rxc3 Rxc3 41. Bc4 Bf6 42. Bxc3 1-0

[Event "Fredericia IM"]
[Site "Fredericia"]
[Date "2022.05.25"]
[Round "1"]
[White "Boe, Mads"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2293"]
[BlackElo "2275"]
[PlyCount "75"]
[EventDate "2022.05.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "DEN"]
[EventCategory "2"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. b3 b5 7. Bb2 Bb7 8. Nbd2 Nbd7 9. c4 bxc4 10. Nxc4 a5 11. Rc1 Ra6 12. Ne1 Bxg2 13. Nxg2 Qa8 14. Nge3 c5 15. dxc5 Nxc5 16. Bxf6 Bxf6 17. Nd5 Ne4 18. Nc7 Qb7 19. Nxa6 Qxa6 20. Qd3 Nc5 21. Qf3 Rb8 22. Rfd1 Kg7 23. Ne3 a4 24. bxa4 Qxa4 25. Qf4 Qa3 26. Qc4 Rb2 27. Rc2 Rb4 28. Qd5 Qa7 29. Qd2 Rd4 30. Qe1 Ra4 31. Nd5 Rxa2 32. Rxa2 Qxa2 33. Nxf6 Kxf6 34. Qc3+ Ke6 35. Qe3+ Kf6 36. Qc3+ Ke6 37. Kf1 h5 38. Rd4 1/2-1/2

[Event "Oberliga Nord N 2122"]
[Site "Germany"]
[Date "2022.05.15"]
[Round "4.1"]
[White "Kalinitschew, Sergey"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2412"]
[BlackElo "2267"]
[PlyCount "61"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Schwerin"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 0-0 5. g3 c6 6. Bg2 d5 7. cxd5 cxd5 8. 0-0 a5 9. b5 a4 10. Na3 Bf5 11. d3 Nbd7 12. Rc1 Qa5 13. Bc3 Qb6 14. Bb4 Rfe8 15. Nh4 Be6 16. Qc2 Qd4 17. Qd2 Ng4 18. Nf3 Qa7 19. e3 Bh6 20. Rfe1 Rac8 21. Rxc8 Rxc8 22. h3 Nge5 23. Nxe5 Nxe5 24. d4 Nc4 25. Nxc4 Rxc4 26. Bf1 Rc8 27. Bxe7 Bf5 28. Rc1 b6 29. Rxc8+ Bxc8 30. Qb4 Qc7 31. Qd6 1-0

[Event "Oberliga Nord N 2122"]
[Site "Germany"]
[Date "2022.05.01"]
[Round "9.3"]
[White "Hilwerda, Jonas"]
[Black "Reinecker, Kai"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "2267"]
[BlackElo "2271"]
[PlyCount "51"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Schwerin"]
[BlackTeam "Preetz"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nc3 Bb4 7. 0-0 Nxe5 8. dxe5 Nxc3 9. bxc3 Bxc3 10. Rb1 0-0 11. Bxh7+ Kxh7 12. Qd3+ Kg8 13. Qxc3 b6 14. Qg3 Bf5 15. Bg5 Qd7 16. f4 Bg6 17. f5 Bxf5 18. Rb3 Rae8 19. Bf6 Bg6 20. Qh4 gxf6 21. exf6 Re2 22. Qh6 Rxg2+ 23. Kxg2 Qg4+ 24. Rg3 Qe4+ 25. Kh3 Qe6+ 26. Rg4 1-0

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2022.04.23"]
[Round "9.3"]
[White "Lenaerts, Lennert"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2354"]
[BlackElo "2287"]
[PlyCount "86"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Zuid Limburg"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bg5 c5 8. Rc1 0-0 9. Nf3 Bg4 10. d5 Qd6 11. Be2 Nd7 12. 0-0 Bxf3 13. Bxf3 c4 14. Qa4 Rfc8 15. Be2 Nc5 16. Qxc4 Ne6 17. dxe6 Rxc4 18. exf7+ Kxf7 19. Bxc4+ Kf8 20. Bb3 Rd8 21. f4 Bxc3 22. e5 Qb4 23. f5 Bd2 24. fxg6+ Kg7 25. Bxd2 Rxd2 26. gxh7 Qg4 27. Rf7+ Kh8 28. Rf8+ Kxh7 29. Rg8 Rxg2+ 30. Kh1 Rxh2+ 31. Kxh2 Qf4+ 32. Kh3 Qxc1 33. Kg4 Qg1+ 34. Kf5 Qf2+ 35. Ke4 Qh4+ 36. Kf5 Qf2+ 37. Ke4 Qe2+ 38. Kf4 Qd2+ 39. Ke4 Qe2+ 40. Kf4 Qf1+ 41. Kg5 Qg2+ 42. Kf5 Qf3+ 43. Kg5 Qxb3 0-1

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2022.04.02"]
[Round "8.8"]
[White "Roggeveen, Pieter"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2229"]
[BlackElo "2287"]
[PlyCount "77"]
[EventDate "2021.09.18"]
[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 "Kennemer Combinatie"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. c4 g6 2. Nc3 Bg7 3. Nf3 Nf6 4. e4 e5 5. Nxe5 0-0 6. d3 Re8 7. f4 b5 8. cxb5 d5 9. Be2 Bb7 10. 0-0 dxe4 11. dxe4 Nxe4 12. Qxd8 Rxd8 13. Nxe4 Bxe4 14. Bc4 Bxe5 15. fxe5 Bf5 16. Bg5 Rd4 17. Bb3 Nd7 18. Rac1 Rc8 19. Rf4 Rd3 20. Ra4 Nxe5 21. Rxa7 Rd7 22. b6 c6 23. a4 Rxa7 24. bxa7 Ra8 25. Be3 Be4 26. a5 Kf8 27. Rd1 Ke8 28. Rd4 f5 29. Rb4 Kd7 30. Rb8 c5 31. Bxc5 Kc7 32. Bb6+ Kd6 33. Be3 Nd7 34. Rb4 Nc5 35. Rb6+ Bc6 36. Bf4+ Kd7 37. Bb8 Be4 38. Bc4 Nb7 39. b4 1-0

[Event "Oberliga Nord N 2122"]
[Site "Germany"]
[Date "2022.03.20"]
[Round "7.1"]
[White "Hilwerda, Jonas"]
[Black "Parvanyan, Ashot"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2267"]
[BlackElo "2462"]
[PlyCount "59"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Schwerin"]
[BlackTeam "Kiel Turm II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2 Nbc6 11. f4 dxc3 12. Qd3 d4 13. Nxd4 Nxd4 14. Qxd4 Bd7 15. Rg1 Nf5 16. Qf2 Qc6 17. Bd3 Qd5 18. Be3 Nxe3 19. Qxe3 Rxg2 20. Rxg2 Qxg2 21. 0-0-0 Qxh2 22. Qd4 Qh4 23. Be4 Qe7 24. Qxc3 Rc8 25. Qg3 Qc5 26. Qg8+ Ke7 27. Qg5+ Ke8 28. Qg8+ Ke7 29. Qg5+ Ke8 30. Qg8+ 1/2-1/2

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2022.03.12"]
[Round "7.6"]
[White "Hilwerda, Jonas"]
[Black "Bezemer, Arno J"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2287"]
[BlackElo "2283"]
[PlyCount "48"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Caissa"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. Nc3 a6 5. dxc5 Qa5 6. Bxb8 Rxb8 7. Qd4 g6 8. b4 Qd8 9. Rd1 Bg7 10. e4 0-0 11. e5 Nd7 12. Nxd5 Bxe5 13. Qe3 Bg7 14. Nf3 e6 15. Nb6 Qe7 16. Rd6 Nxb6 17. Rxb6 Bd7 18. Bc4 Bc6 19. 0-0 Qf6 20. b5 Bxf3 21. Qxf3 Qd4 22. Qb3 a5 23. Rd6 Qxc5 24. Rd7 b6 1/2-1/2

[Event "Oberliga Nord N 2122"]
[Site "Germany"]
[Date "2022.03.06"]
[Round "6.1"]
[White "Colpe, Malte"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "D72"]
[WhiteElo "2360"]
[BlackElo "2267"]
[PlyCount "86"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK III"]
[BlackTeam "Schwerin"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2 c5 8. d5 e6 9. 0-0 exd5 10. exd5 0-0 11. Nec3 Bf5 12. Na3 Qd7 13. Re1 Na6 14. Be3 Rac8 15. Qd2 Nb4 16. Bh6 Rfe8 17. Bxg7 Kxg7 18. Rad1 Bg4 19. Rc1 Rxe1+ 20. Rxe1 Rd8 21. Qg5 f6 22. Qe3 N6xd5 23. Nxd5 Nxd5 24. Qxc5 b6 25. Qd4 Nc7 26. Qb4 Re8 27. Rc1 Re7 28. Nc4 Ne8 29. Ne3 Be6 30. b3 Qd6 31. Qa4 Bf7 32. Rd1 Qc5 33. Qd4 Qxd4 34. Rxd4 Nc7 35. Rd8 Be6 36. Bc6 Bh3 37. b4 Ne6 38. Rd6 Ng5 39. Bg2 Bxg2 40. Kxg2 Nf7 41. Rc6 Ne5 42. Rd6 Rd7 43. Rxd7+ Nxd7 1/2-1/2

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2022.02.05"]
[Round "6.5"]
[White "Hilwerda, Jonas"]
[Black "Warmerdam, Max"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2287"]
[BlackElo "2608"]
[PlyCount "80"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Apeldoorn Amevo"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 Be7 8. g4 h6 9. Be3 Nbd7 10. a4 Nf8 11. Qd2 g5 12. a5 Be6 13. Nd5 Rc8 14. c4 Ng6 15. f3 h5 16. Rh2 Nf4 17. Rd1 Nd7 18. Bg1 Bxd5 19. cxd5 Kf8 20. Na1 Qc7 21. Nb3 Kg7 22. Rc1 Qb8 23. Qd1 Bd8 24. Rxc8 Qxc8 25. Rc2 Qb8 26. Qc1 hxg4 27. hxg4 Rh1 28. Qe3 b6 29. Rh2 Rxh2 30. Bxh2 bxa5 31. Qc3 a4 32. Bxf4 gxf4 33. Na5 Bxa5 34. Qxa5 Nc5 35. Qc3 Qd8 36. Qd2 Qb6 37. Qf2 Qb4+ 38. Kd1 f6 39. Kc2 Qb3+ 40. Kc1 Qa2 0-1

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.11.27"]
[Round "4.4"]
[White "Vandenbussche, Thibaut"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2401"]
[BlackElo "2287"]
[PlyCount "174"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Charlois Europoort"]
[BlackTeam "Groningen Combinatie"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 e5 6. d3 Nge7 7. Be3 d6 8. d4 exd4 9. cxd4 0-0 10. Nc3 Qb6 11. Bxc6 Nxc6 12. Nd5 Qxb2 13. a4 Bg4 14. Rb1 Bxf3 15. gxf3 Qa3 16. dxc5 dxc5 17. Rxb7 Nd4 18. Bxd4 cxd4 19. Qb3 Qd6 20. Rc1 Qe5 21. Kh1 Qg5 22. f4 Qg4 23. Qd3 Rab8 24. Rcc7 Rxb7 25. Rxb7 Kh8 26. h3 Qc8 27. Rc7 Qd8 28. Qc4 Qh4 29. Kg2 g5 30. Rc8 gxf4 31. Rxf8+ Bxf8 32. Qxd4+ Bg7 33. Qxa7 f3+ 34. Kxf3 Qxh3+ 35. Ke2 Qh5+ 36. f3 Be5 37. Qa8+ Kg7 38. Ne7 Qh2+ 39. Kd3 Bb8 40. Nf5+ Kg6 41. Qc6+ Kg5 42. Qb6 Be5 43. Qd8+ Kf4 44. Qb6 Kxf3 45. Qe3+ Kg2 46. a5 Qh3 47. a6 Bb8 48. Qxh3+ Kxh3 49. Nh6 Kg3 50. Nxf7 Kf4 51. Nd8 Ba7 52. Nc6 Bb6 53. Ne7 Ke5 54. Kc4 h5 55. Nc8 Bg1 56. Kb5 h4 57. Nb6 Bxb6 58. Kxb6 h3 59. a7 h2 60. a8Q h1Q 61. Qd5+ Kf4 62. Qd6+ Kg5 63. Qe5+ Kg6 64. Qd6+ Kf7 65. Qd5+ Ke7 66. Qg5+ Kf7 67. Qf4+ Ke7 68. Kc7 Qa1 69. Qd6+ Kf7 70. Qd7+ Kf8 71. Qf5+ Ke7 72. Qc5+ Ke6 73. Qf5+ Ke7 74. Qg5+ Ke6 75. Qg6+ Ke7 76. Qh7+ Kf8 77. Kd6 Qa3+ 78. Ke6 Qa6+ 79. Kf5 Qf1+ 80. Kg5 Qg1+ 81. Kf6 Qb6+ 82. Kf5 Qf2+ 83. Kg4 Qg2+ 84. Kf4 Qf2+ 85. Ke5 Qc5+ 86. Kf6 Qb6+ 87. Kg5 Qg1+ 1/2-1/2

[Event "Oberliga Nord N 2122"]
[Site "Germany"]
[Date "2021.11.21"]
[Round "2.1"]
[White "Von Gleich, Alexander"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2331"]
[BlackElo "2267"]
[PlyCount "25"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Johanneum Eppendorf"]
[BlackTeam "Schwerin"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. 0-0-0 Na6 11. Ne1 Nc5 12. f3 c6 13. Nc2 1/2-1/2

[Event "Oberliga Nord N 2122"]
[Site "Germany"]
[Date "2021.11.20"]
[Round "3.1"]
[White "Hilwerda, Jonas"]
[Black "Kopylov, Daniel"]
[Result "0-1"]
[ECO "B89"]
[WhiteElo "2267"]
[BlackElo "2317"]
[PlyCount "80"]
[EventDate "2021.10.31"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Schwerin"]
[BlackTeam "Harksheide"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 Be7 8. Qe2 0-0 9. 0-0-0 Qc7 10. Nxc6 bxc6 11. g4 d5 12. g5 dxc4 13. gxf6 Bxf6 14. Qxc4 a5 15. f4 Ba6 16. Qc5 Rfb8 17. e5 Be7 18. Qd4 Qb7 19. Na4 Bb5 20. b3 Bb4 21. Nc5 Qe7 22. Qd6 Qh4 23. Kb2 a4 24. a3 Bxa3+ 25. Kxa3 Qh3 26. Qd4 axb3+ 27. Kxb3 Be2+ 28. Kc3 Bxd1 29. Rxd1 Qxh2 30. Na6 c5 31. Qd6 Qe2 32. Rd3 Qe1+ 33. Kc4 h5 34. Bd2 Qe4+ 35. Kxc5 Rc8+ 36. Kb6 Rc6+ 37. Qxc6 Rxa6+ 38. Kxa6 Qxc6+ 39. Ka7 Qa4+ 40. Kb6 Qxc2 0-1

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.11.06"]
[Round "3.8"]
[White "Hilwerda, Jonas"]
[Black "De Jong, Jan Willem"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2287"]
[BlackElo "2438"]
[PlyCount "45"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Leiden LSG"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. c3 Nf6 5. Nd2 Bf5 6. Ngf3 Qb6 7. Nh4 Bg4 8. Qb3 e6 9. h3 Bh5 10. g4 Bg6 11. Nxg6 hxg6 12. Bg2 Be7 13. 0-0 0-0 14. dxc5 Bxc5 15. c4 d4 16. exd4 Bxd4 17. Rab1 Rfd8 18. Qxb6 axb6 19. a3 Be5 20. Be3 Bd4 21. Bf4 Be5 22. Be3 Bd4 23. Bf4 1/2-1/2

[Event "NED-ch KO"]
[Site "Hoogeveen"]
[Date "2021.10.16"]
[Round "1.2"]
[White "Hilwerda, Jonas"]
[Black "Lai, Hing Ting"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "2295"]
[BlackElo "2439"]
[PlyCount "79"]
[EventDate "2021.10.15"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. 0-0-0 Be7 13. Ne4 Nxe4 14. Qxe4 Nf6 15. Qd3 0-0 16. g4 Nxg4 17. Rhg1 f5 18. Qe2 Kh7 19. Ne5 Nxe5 20. dxe5 Rf7 21. Rg6 Qd5 22. c4 Qe4 23. Qxe4 fxe4 24. Rxe6 Bh4 25. Re1 Bxf2 26. Rxe4 Bc5 27. Rg6 Rf5 28. Reg4 Bf8 29. e6 Re8 30. Bf4 b5 31. Bg3 bxc4 32. Bh4 Rxh5 33. e7 Rxh4 34. exf8N+ Rxf8 35. Rxg7+ Kh8 36. Rxh4 Kxg7 37. Rxc4 Rf6 38. Rg4+ Kf8 39. Ra4 Rf7 40. Rc4 1/2-1/2

[Event "NED-ch KO"]
[Site "Hoogeveen"]
[Date "2021.10.15"]
[Round "1.1"]
[White "Lai, Hing Ting"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2439"]
[BlackElo "2295"]
[PlyCount "91"]
[EventDate "2021.10.15"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. Nc3 Nc6 7. 0-0 e5 8. d5 Nb8 9. Ne1 a5 10. e4 Na6 11. Rb1 Nc5 12. b3 Nfd7 13. a3 f5 14. exf5 gxf5 15. b4 Na6 16. Ne2 Nf6 17. f4 e4 18. Nc2 axb4 19. axb4 c5 20. dxc6 bxc6 21. h3 Be6 22. Ncd4 Bd7 23. b5 cxb5 24. Nxb5 d5 25. Ba3 dxc4 26. Qc1 Bxb5 27. Rxb5 Qd3 28. Bxf8 Rxf8 29. Re1 Nd5 30. Rd1 Qxe2 31. Rbxd5 c3 32. Rd7 Nc5 33. Rxg7+ Kxg7 34. Qxc3+ Kg8 35. Ra1 Nd3 36. Qc4+ Rf7 37. Ra8+ Kg7 38. Qd4+ Rf6 39. Ra7+ Kg6 40. Qd7 h6 41. Qg7+ Kh5 42. Qxf6 Qf2+ 43. Kh2 Qxa7 44. g4+ fxg4 45. Qf5+ Kh4 46. Qxg4# 1-0

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.10.09"]
[Round "2.6"]
[White "Hilwerda, Jonas"]
[Black "Buckels, Valentin"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2287"]
[BlackElo "2454"]
[PlyCount "98"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "En Passant"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 Qe6 9. Nd2 Rb8 10. a3 Bc5 11. Nf3 a5 12. c4 Nb6 13. Bf4 Ba6 14. Ng5 Qe7 15. Qc2 h6 16. Nf3 0-0 17. 0-0-0 Bxa3 18. bxa3 Qxa3+ 19. Qb2 Qxb2+ 20. Kxb2 Nd5+ 21. Kc2 Nxf4 22. Rxd7 Bc8 23. Rxc7 Bf5+ 24. Kc3 Rfd8 25. Nd2 Nd3 26. Be2 Nc5 27. Ra1 Rxd2 28. Kxd2 Nb3+ 29. Ke3 Nxa1 30. Rxc6 Rb3+ 31. Kd4 Rb2 32. Bf3 a4 33. g4 Nb3+ 34. Kc3 Rxf2 35. Bd1 Be6 36. Ra6 g5 37. hxg5 hxg5 38. Rxa4 Nc5 39. Ra8+ Kg7 40. Ra5 Ne4+ 41. Kb4 Rb2+ 42. Ka3 Rb1 43. Bc2 Ra1+ 44. Kb4 Rxa5 45. Kxa5 Nd2 46. c5 Nc4+ 47. Ka6 Nxe5 48. Be4 Nxg4 49. c6 f5 0-1

[Event "NED-chT 2122"]
[Site "Netherlands"]
[Date "2021.09.18"]
[Round "1.7"]
[White "Hilwerda, Jonas"]
[Black "Piceu, Tom"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2287"]
[BlackElo "2355"]
[PlyCount "101"]
[EventDate "2021.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Groningen Combinatie"]
[BlackTeam "Sas van Gent"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 Be6 8. f4 exf4 9. Bxf4 Nc6 10. Qe2 Nd7 11. 0-0-0 Nde5 12. Kb1 Be7 13. g4 0-0 14. Qe3 b5 15. Be2 Qc7 16. Nd5 Bxd5 17. exd5 Nb8 18. Bxe5 dxe5 19. Qe4 Bd6 20. Bd3 g6 21. h4 Nd7 22. Qf3 a5 23. Bxb5 a4 24. Nd2 a3 25. b3 f5 26. Bxd7 Qxd7 27. gxf5 gxf5 28. Rhg1+ Kh8 29. Nc4 Qe7 30. Qg3 Rad8 31. Rde1 Rg8 32. Qc3 Bb4 33. Qxe5+ Qxe5 34. Nxe5 Rg7 35. Rxg7 Kxg7 36. Rg1+ Kf6 37. Nc6 Bc5 38. Rd1 Rd7 39. b4 Be3 40. c4 f4 41. Kc2 Kf5 42. Kd3 Bf2 43. h5 Bh4 44. Rf1 Bf6 45. Nd4+ Kg4 46. Ke4 Bxd4 47. Kxd4 f3 48. c5 Kg3 49. c6 Re7 50. d6 Re2 51. c7 1-0

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.20"]
[Round "10"]
[White "Hilwerda, Jonas"]
[Black "Kushagra, Mohan"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2240"]
[BlackElo "2351"]
[PlyCount "136"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 Bb7 9. Bd2 Qe6 10. Nc3 g6 11. 0-0-0 Bg7 12. Nxd5 cxd5 13. f4 0-0 14. Bc3 c5 15. Qb5 Qb6 16. Qxd7 d4 17. Bd2 Rab8 18. b3 Rfd8 19. Qh3 Bc8 20. Qd3 Be6 21. Qa6 c4 22. Qxb6 axb6 23. bxc4 Bf8 24. Kb2 Ra8 25. Bc1 b5 26. cxb5 Rxa2+ 27. Kb1 Bb4 28. c4 Ra4 29. Bb2 Bc5 30. Bd3 Rb4 31. Kc2 Bxc4 32. Ba3 Bxd3+ 33. Rxd3 Rxb5 34. Bxc5 Rxc5+ 35. Kd2 Rdc8 36. Rxd4 Rc2+ 37. Kd3 Rxg2 38. h5 g5 39. fxg5 Rg3+ 40. Ke4 Rg4+ 41. Kd3 Rxg5 42. Re4 Re8 43. Kd4 Kf8 44. Rhh4 h6 45. Kd5 Re6 46. Kd4 Ke7 47. Kd5 f6 48. Kd4 fxe5+ 49. Kd5 Rd6+ 50. Kc5 Ke6 51. Rh1 Rd5+ 52. Kc4 Rd7 53. Kc5 Rc7+ 54. Kb6 Rf7 55. Rc1 Rf6 56. Kc5 Rxh5 57. Ra1 Rh2 58. Rae1 Rc2+ 59. Kb4 Rf5 60. Kb3 Rc8 61. Rh4 h5 62. Reh1 Rh8 63. Kc3 Kf6 64. Rg1 Rf4 65. Rh2 Rc8+ 66. Kd3 Rd4+ 67. Ke3 Rc3+ 68. Kf2 Rd2+ 0-1

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.20"]
[Round "9"]
[White "Mohammad Fahad, Rahman"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "E97"]
[WhiteElo "2339"]
[BlackElo "2240"]
[PlyCount "92"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 e5 7. Be3 Ng4 8. Bg5 f6 9. Bc1 Nc6 10. 0-0 Nh6 11. d5 Ne7 12. b4 f5 13. Ng5 f4 14. Ne6 Bxe6 15. dxe6 Nc6 16. c5 Nd4 17. Bc4 Kh8 18. Ba3 f3 19. g3 Qg5 20. Re1 Rf4 21. Bc1 Qh5 22. Bxf4 Ng4 23. h4 exf4 24. Rf1 fxg3 25. fxg3 Qe5 26. Qe1 Nc2 27. Rxf3 Nxe1 28. Rxe1 Qd4+ 29. Kg2 Qxc4 30. Nd5 Re8 31. Nxc7 Rxe6 32. Nxe6 Qxa2+ 33. Kg1 Qxe6 34. Rd1 Be5 35. Kg2 Kg7 36. Rd2 dxc5 37. bxc5 Nf6 38. Rc2 Nxe4 39. Re3 Nxg3 40. Rce2 Nxe2 41. Rxe2 Qg4+ 42. Kf2 Bd4+ 43. Kf1 Qf3+ 44. Ke1 Bc3+ 45. Kd1 Qd3+ 46. Kc1 Qxe2 0-1

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.19"]
[Round "8"]
[White "Hilwerda, Jonas"]
[Black "Anuj, Shrivatri"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2240"]
[BlackElo "2350"]
[PlyCount "70"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 Qe6 9. Nd2 Rb8 10. a3 Bc5 11. Nf3 a5 12. c4 Nb6 13. g3 a4 14. Ng5 Qe7 15. f4 Ba6 16. Qc2 d5 17. cxd5 Bxf1 18. Kxf1 cxd5 19. Bd2 h6 20. Nf3 0-0 21. Rc1 Nc4 22. Qxa4 Rxb2 23. Rc2 Nb6 24. Qa6 Rxc2 25. Qd3 Ra2 26. Ng5 g6 27. h5 Rxd2 28. Qxd2 hxg5 29. hxg6 fxg6 30. Qc2 Rf5 31. Kg2 gxf4 32. g4 f3+ 33. Kf1 Qxe5 34. gxf5 Qa1+ 35. Qd1 Qxd1# 0-1

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.19"]
[Round "7"]
[White "Kanyamarala, Tarun"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "A15"]
[WhiteElo "2369"]
[BlackElo "2240"]
[PlyCount "98"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 0-0 5. g3 b6 6. Bg2 Bb7 7. 0-0 e6 8. e3 d5 9. Qe2 c5 10. Ne5 Nfd7 11. Nd3 Nf6 12. Nf4 Qe7 13. Nc3 dxc4 14. bxc4 Bxg2 15. Kxg2 Nc6 16. h4 h5 17. Qf3 Ne5 18. Qe2 Rfd8 19. Rfd1 Qb7+ 20. f3 Rd7 21. Rab1 Qa6 22. Nb5 Nc6 23. Bc3 Rad8 24. d3 Qa4 25. Rb3 Qa6 26. Qb2 Ne8 27. Bxg7 Nxg7 28. Rd2 Nf5 29. Kf2 Qb7 30. Qf6 Qb8 31. g4 hxg4 32. fxg4 Ng7 33. Nc3 Qe5 34. Ne4 Ne8 35. Qxe5 Nxe5 36. g5 Nxc4 37. Rc2 Ncd6 38. Ng3 Nf5 39. Nxf5 exf5 40. h5 gxh5 41. Kf3 Ng7 42. Rb1 Ne6 43. Nxh5 Rxd3 44. Rh2 Kf8 45. Nf6 Ke7 46. Rg1 Nxg5+ 47. Rxg5 Kxf6 48. Rhh5 R8d5 49. Rg2 c4 0-1

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.18"]
[Round "6"]
[White "Hilwerda, Jonas"]
[Black "Alexakis, Dimitris"]
[Result "0-1"]
[ECO "B57"]
[WhiteElo "2240"]
[BlackElo "2446"]
[PlyCount "72"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Bd7 7. Be3 Ng4 8. Bg5 Qb6 9. Nd5 Qxd4 10. Qxd4 Nxd4 11. Nc7+ Kd8 12. Nxa8 Nxc2+ 13. Ke2 Nxa1 14. Rxa1 Kc8 15. Rc1 Kb8 16. Bd5 h6 17. Rc7 Bc6 18. Bxf7 a5 19. Bd2 Kxa8 20. Bxa5 g5 21. Bc3 Bb5+ 22. Ke1 Kb8 23. Ba5 Bg7 24. Bd5 Ba6 25. Rxe7 Bxb2 26. Bc7+ Ka8 27. Bxd6 Bc3+ 28. Kd1 Nxf2+ 29. Kc2 Rc8 30. Be6 Rc6 31. Re8+ Ka7 32. Bb8+ Kb6 33. Kb3 Bd4 34. Bd5 Rc3+ 35. Kb4 Nd3+ 36. Ka4 Bb5# 0-1

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.18"]
[Round "5"]
[White "Tzidkiya, Yeshaayahu"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2387"]
[BlackElo "2240"]
[PlyCount "57"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 g6 5. d3 h6 6. 0-0 Bg7 7. Ne1 Nf6 8. f4 d6 9. Nf3 exf4 10. Bxf4 Nh5 11. Be3 0-0 12. Nd5 Kh7 13. Qd2 Be6 14. a4 Ne7 15. d4 Bxd5 16. exd5 Nf5 17. Bf2 Nf6 18. Bd3 Nxd4 19. Nxd4 cxd4 20. Bh4 Ne4 21. Qf4 Ng5 22. Rae1 Be5 23. Qf2 Qd7 24. Bg3 Qg4 25. Be2 Qd7 26. Bb5 Qg4 27. Be2 Qd7 28. Bb5 Qg4 29. Be2 1/2-1/2

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.17"]
[Round "4"]
[White "Hilwerda, Jonas"]
[Black "Emanuel, Mutuna"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2240"]
[BlackElo "1924"]
[PlyCount "75"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 Qa5 10. Kb1 Bd7 11. h4 Rfc8 12. g4 Ne5 13. Nd5 Qxd2 14. Nxf6+ Bxf6 15. Rxd2 Rc7 16. Bg5 Kg7 17. Be2 Rac8 18. c3 Nc4 19. Bxc4 Rxc4 20. Nc2 Be6 21. Ne3 R4c6 22. f4 h6 23. Bxf6+ Kxf6 24. f5 Bc4 25. b3 Ba6 26. Nd5+ Kg7 27. Nxe7 Rxc3 28. Nxc8 Rxc8 29. Rxd6 Rc3 30. f6+ Kh7 31. Rd7 Kg8 32. Rd8+ Kh7 33. Rf8 Rc7 34. Rd1 g5 35. h5 Rc6 36. Rxf7+ Kg8 37. Rg7+ Kf8 38. Rd8# 1-0

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.17"]
[Round "3"]
[White "Thilakarathne, GM Harshana"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2398"]
[BlackElo "2240"]
[PlyCount "115"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d3 d6 6. e4 c5 7. c3 e5 8. a3 Nc6 9. b4 b5 10. Nbd2 h6 11. Bb2 Be6 12. d4 cxd4 13. cxd4 Bg4 14. d5 Ne7 15. Rc1 Nd7 16. h3 Bxf3 17. Qxf3 Nb6 18. Qd3 Qd7 19. f4 f6 20. Kh2 g5 21. Bf3 exf4 22. gxf4 Ng6 23. Bg4 Qe7 24. Be6+ Kh8 25. f5 Ne5 26. Qxb5 Rfb8 27. Qe2 a5 28. b5 Na4 29. Bd4 Qe8 30. Rb1 Rb7 31. Rfc1 Bf8 32. Rc6 Be7 33. Nc4 Nxc4 34. Qxc4 Qh5 35. Rc8+ Kh7 36. Rxa8 Nc5 37. Bxc5 dxc5 38. Qd3 Bd6+ 39. Kg2 g4 40. Bg8+ Kg7 41. Rg1 g3 42. Qf3 Qg5 43. Qg4 Rxb5 44. Qxg5+ hxg5 45. Be6 Rb2+ 46. Kf3 Rb3+ 47. Kg4 Re3 48. Ra7+ Kh6 49. Ra8 Kg7 50. Kh5 Rxe4 51. Ra7+ Kf8 52. Kg6 Be5 53. d6 Bxd6 54. Kxf6 Be5+ 55. Kxg5 Re3 56. f6 Bxf6+ 57. Kxf6 Rf3+ 58. Bf5 1-0

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.16"]
[Round "1"]
[White "Cooke, Xandi"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1465"]
[BlackElo "2240"]
[PlyCount "58"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. Bg5 Bf5 6. e3 Ne4 7. Nxe4 Bxe4 8. Bd3 Bxd3 9. Qxd3 0-0 10. 0-0 Qe8 11. Qe4 Nc6 12. d5 Ne5 13. Rab1 h6 14. Bf4 f5 15. Qc2 Nxf3+ 16. gxf3 g5 17. Bg3 f4 18. exf4 gxf4 19. Bh4 Qh5 20. Bxe7 Rf7 21. Bxd6 cxd6 22. Qd3 Re8 23. b4 Qf5 24. Qa3 Bd4 25. c5 Rg7+ 26. Kh1 Bxf2 27. Rb2 Bd4 28. Rd2 Qh3 29. cxd6 Qxf1# 0-1

[Event "World Cup U18 Prel"]
[Site "Tornelo INT"]
[Date "2021.08.16"]
[Round "2"]
[White "Hilwerda, Jonas"]
[Black "Boci, Petro"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2240"]
[BlackElo "1460"]
[PlyCount "67"]
[EventDate "2021.08.16"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "NET"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. c3 Bg7 12. Bd3 Be6 13. Qh5 f4 14. g3 fxg3 15. hxg3 h6 16. Nc2 Bxd5 17. exd5 Ne7 18. Ne3 Rb8 19. Rh4 a5 20. Kf1 Qd7 21. a4 bxa4 22. Rhxa4 0-0 23. Ng4 f5 24. Nxh6+ Bxh6 25. Qxh6 e4 26. Qg5+ Kf7 27. Be2 Rg8 28. Bh5+ Ng6 29. Rxa5 Rb7 30. Ra8 Rg7 31. Rd8 Qb5+ 32. Kg1 Qxd5 33. Raa8 Rxb2 34. Rd7+ 1-0

[Event "Oberliga Nord N 1920"]
[Site "Germany"]
[Date "2021.08.15"]
[Round "9.4"]
[White "Hagenstein, Frank"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2234"]
[BlackElo "2240"]
[PlyCount "30"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Norderstedt"]
[BlackTeam "Schwerin SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nc6 7. 0-0 e5 8. dxe5 dxe5 9. Bg5 h6 10. Qxd8 Rxd8 11. Bxf6 Bxf6 12. Nd5 Kg7 13. Nxc7 Rb8 14. e4 Bg5 15. Nd5 b5 1/2-1/2

[Event "Oberliga Nord N 1920"]
[Site "Germany"]
[Date "2021.08.14"]
[Round "8.4"]
[White "Hilwerda, Jonas"]
[Black "Mach, Holger"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "2240"]
[BlackElo "2213"]
[PlyCount "151"]
[EventDate "2019.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Schwerin SF"]
[BlackTeam "Hamburg Diogenes"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Be7 9. c4 b4 10. Nc2 Rb8 11. g3 Nf6 12. Bg2 Be6 13. 0-0 h5 14. h4 Ng4 15. Nxe7 Nxe7 16. b3 Ng6 17. Bg5 Qb6 18. Qe2 0-0 19. Rad1 f6 20. Be3 Qc7 21. Bd2 a5 22. f3 Nh6 23. Bxh6 gxh6 24. Qd2 Qg7 25. Qxd6 Rbe8 26. Ne3 Kh8 27. Rf2 Rg8 28. Rfd2 Nf8 29. Nf1 f5 30. exf5 Bxf5 31. Qb6 e4 32. fxe4 Bxe4 33. Qxa5 Bxg2 34. Rxg2 Ng6 35. Qd5 Ne5 36. Kh1 Rgf8 37. Qd4 Rd8 38. Qxd8 Rxd8 39. Rxd8+ Kh7 40. Rd4 Nf3 41. Rf4 Ne1 42. Rgf2 Nd3 43. Kg2 Nxf2 44. Rxf2 Qb7+ 45. Kh2 Qe4 46. Kg1 Qd4 47. Nh2 Kg7 48. Nf3 Qe3 49. Kg2 Qe4 50. Rd2 Qe3 51. Rd7+ Kf6 52. Rd6+ Ke7 53. Rd2 Kf8 54. Rf2 Kg8 55. Ng1 Qe4+ 56. Kh2 Qe3 57. Nh3 Qe1 58. Rg2 Kh7 59. Nf4 Qd1 60. Re2 Qf1 61. Re7+ Kg8 62. Rb7 Qf2+ 63. Ng2 Qd2 64. c5 Qc3 65. c6 Qxc6 66. Rxb4 Qc3 67. Rb5 Qb2 68. a4 Kf8 69. a5 Ke8 70. Rxh5 Qxb3 71. Rxh6 Qa2 72. a6 Kf7 73. Rb6 Qa5 74. Rb7+ Kg6 75. a7 Kf5 76. Rb5+ 1-0

[Event "NED-ch U18"]
[Site "Almelo"]
[Date "2021.08.07"]
[Round "7"]
[White "Grutter, Tim"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2253"]
[BlackElo "2240"]
[PlyCount "28"]
[EventDate "2021.08.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. 0-0 e5 6. a3 Nge7 7. d3 0-0 8. b4 d6 9. bxc5 dxc5 10. Bg5 h6 11. Bxe7 Nxe7 12. Bc4 Kh7 13. Nd5 f5 14. h3 Nc6 1/2-1/2

[Event "NED-ch U18"]
[Site "Almelo"]
[Date "2021.08.06"]
[Round "6"]
[White "Hilwerda, Jonas"]
[Black "Honkoop, Gilian"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2240"]
[BlackElo "2157"]
[PlyCount "87"]
[EventDate "2021.08.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Ba6 9. b3 g5 10. Bb2 Bg7 11. h4 h6 12. Nd2 0-0-0 13. 0-0-0 Rhe8 14. g3 Nb6 15. hxg5 hxg5 16. Rh7 Qf8 17. f4 f6 18. Qg4 fxe5 19. Qxg5 Bf6 20. Qf5 Bh8 21. Qxf8 Rxf8 22. fxe5 Rde8 23. Rh5 Kb8 24. a4 d6 25. exd6 Bxb2+ 26. Kxb2 cxd6 27. Rh6 Kc7 28. c5 Bxf1 29. cxb6+ axb6 30. Rh7+ Kb8 31. Rxf1 Rxf1 32. Nxf1 Re2+ 33. Kc3 Re1 34. Rf7 d5 35. g4 Re4 36. g5 Rg4 37. Rg7 c5 38. g6 Kc8 39. Rg8+ Kd7 40. g7 Ke7 41. Ra8 Rxg7 42. Ra7+ Kf6 43. Rxg7 Kxg7 44. b4 1-0

[Event "NED-ch U18"]
[Site "Almelo"]
[Date "2021.08.05"]
[Round "5"]
[White "Elgersma, Onno"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2292"]
[BlackElo "2240"]
[PlyCount "62"]
[EventDate "2021.08.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qe7 8. a3 a5 9. Be3 Nf6 10. h3 0-0 11. Nbd2 Nd7 12. h4 h6 13. Nc4 b5 14. Ncd2 f5 15. exf5 gxf5 16. Bf4 Re8 17. a4 Qf7 18. Bh2 c4 19. Rb1 cxd3 20. cxd3 Qd5 21. Nf1 Bb7 22. Ne3 Qf7 23. Rc1 Rac8 24. axb5 cxb5 25. Rxc8 Rxc8 26. d4 f4 27. Ng4 exd4 28. Nfe5 Nxe5 29. Nxe5 Bxe5 30. Rxe5 Qg7 31. Qb3+ Kh8 0-1

[Event "NED-ch U18"]
[Site "Almelo"]
[Date "2021.08.04"]
[Round "4"]
[White "Hilwerda, Jonas"]
[Black "Bruil, Rembrandt"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2240"]
[BlackElo "2105"]
[PlyCount "75"]
[EventDate "2021.08.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Be3 Nf6 7. Bc4 0-0 8. Qe2 d6 9. f3 Na5 10. Bd3 a6 11. 0-0-0 b5 12. Qd2 Bd7 13. Bh6 Qb6 14. Bxg7 Kxg7 15. Nce2 Rab8 16. Kb1 Nc4 17. Qc1 e5 18. Nf5+ Bxf5 19. exf5 Ne3 20. Rdg1 d5 21. g4 g5 22. h4 h6 23. Ng3 d4 24. hxg5 hxg5 25. Rh5 Nxh5 26. Nxh5+ Kg8 27. f6 Rfd8 28. Qd2 Rd6 29. Qh2 Re8 30. Ng7 Rxf6 31. Qh7+ Kf8 32. Qh8+ Ke7 33. Qxe8+ Kd6 34. Qf8+ Kd7 35. Bf5+ Kc6 36. Qc8+ Qc7 37. Qxc7+ Kd5 38. Be4# 1-0

[Event "NED-ch U18"]
[Site "Almelo"]
[Date "2021.08.03"]
[Round "3"]
[White "Maters, Arthur"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2032"]
[BlackElo "2240"]
[PlyCount "62"]
[EventDate "2021.08.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Nxb5 axb5 12. Bxb5 Bb7 13. exf5 Rc8 14. c3 Bg7 15. Qf3 Bf6 16. a4 0-0 17. 0-0 Kh8 18. Qd3 e4 19. Qe3 Be5 20. f4 exf3 21. Rxf3 Ne7 22. Nxe7 Qxe7 23. Rh3 Rg8 24. Bf1 Be4 25. Bd3 Bxg2 26. Rg3 Ba8 27. f6 Qb7 28. Qh6 Rxg3+ 29. Kf2 Qf3+ 30. Ke1 Rg1+ 31. Kd2 Bf4+ 0-1

[Event "NED-ch U18"]
[Site "Almelo"]
[Date "2021.08.02"]
[Round "2"]
[White "Hilwerda, Jonas"]
[Black "Shakhverdian, William"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2240"]
[BlackElo "2074"]
[PlyCount "105"]
[EventDate "2021.08.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 a5 9. c4 Ba6 10. Rh3 Nb6 11. b3 a4 12. Nd2 Qe6 13. Nf3 Bb4+ 14. Bd2 Qe7 15. Bxb4 Qxb4+ 16. Qd2 Qxd2+ 17. Nxd2 0-0 18. 0-0-0 axb3 19. axb3 d5 20. cxd5 cxd5 21. Bxa6 Rxa6 22. Rc3 Nd7 23. Rxc7 Nxe5 24. Nb1 Ng6 25. Rxd5 Nf4 26. Rd2 Nxg2 27. Rc4 Rh6 28. Rdd4 f5 29. Nc3 Re8 30. b4 f4 31. b5 Nxh4 32. Rxf4 Ng6 33. Rf5 Ne5 34. Re4 Nd3+ 35. Kc2 Rxe4 36. Nxe4 Nb4+ 37. Kc3 Na6 38. Nf6+ gxf6 39. bxa6 Rh1 40. Kb4 Ra1 41. Ra5 Rb1+ 42. Kc5 Rc1+ 43. Kb6 Rb1+ 44. Rb5 Ra1 45. a7 Rxa7 46. Kxa7 Kg7 47. Kb6 Kg6 48. Kc5 Kg5 49. Kd4+ Kg4 50. Ke4 h5 51. Rf5 h4 52. Rxf6 h3 53. Rh6 1-0

[Event "NED-ch U18"]
[Site "Almelo"]
[Date "2021.08.01"]
[Round "1"]
[White "Verweij, David"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "A05"]
[BlackElo "2240"]
[PlyCount "64"]
[EventDate "2021.08.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d3 d6 6. c3 e5 7. e4 c5 8. Nbd2 Nc6 9. Rb1 Be6 10. Qa4 a6 11. Ng5 Bg4 12. Qc2 b5 13. Re1 h6 14. Ngf3 Be6 15. b4 cxb4 16. d4 bxc3 17. Qxc3 Nxd4 18. Nxd4 exd4 19. Qa3 Nd7 20. Bb2 Nb6 21. e5 dxe5 22. Bxa8 Qxa8 23. Qd6 Bh3 24. Ne4 Nc4 25. Qe7 Nd2 26. f3 Nxf3+ 27. Kf2 Nxe1 28. Rxe1 f5 29. Qe6+ Kh7 30. Kg1 fxe4 31. Qxh3 e3 32. Qe6 Rf2 0-1

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.30"]
[Round "9"]
[White "Pavlov, Mark"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2195"]
[BlackElo "2209"]
[PlyCount "32"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. c3 0-0 5. Nbd2 d6 6. e4 c5 7. dxc5 dxc5 8. Be2 h6 9. Bh4 Nh5 10. Nc4 Nc6 11. 0-0 g5 12. Bg3 Nxg3 13. hxg3 b5 14. Ne3 Rb8 15. Qc2 Qa5 16. Nd2 Qc7 1/2-1/2

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.29"]
[Round "8"]
[White "Hilwerda, Jonas"]
[Black "Isha, Sharma"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2209"]
[BlackElo "2213"]
[PlyCount "43"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Qf6 7. Qe2 Nge7 8. h4 h6 9. g4 Qg6 10. f4 d6 11. f5 Qf6 12. Bf4 Nd4 13. Nxd4 Qxd4 14. Rh3 Bd7 15. Rd3 Qc4 16. b3 Qc5 17. 0-0-0 0-0-0 18. e5 dxe5 19. Bxe5 Rhe8 20. Bxg7 Nxf5 21. Rxd7 Nxg7 22. Rxd8+ 1/2-1/2

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.28"]
[Round "7"]
[White "Ilincic, Zlatko"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2395"]
[BlackElo "2209"]
[PlyCount "87"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nc6 7. 0-0 e5 8. dxe5 dxe5 9. Bg5 h6 10. Bxf6 Qxf6 11. Nd2 Be6 12. Nde4 Qe7 13. Nd5 Bxd5 14. cxd5 Rfd8 15. Qa4 Qb4 16. Nc3 Qxa4 17. Nxa4 Nb4 18. Rfd1 c6 19. dxc6 bxc6 20. a3 Nc2 21. Rac1 Nd4 22. Re1 Rac8 23. Rc3 e4 24. Bxe4 Re8 25. Re3 c5 26. Kf1 c4 27. Bb7 Rb8 28. Rxe8+ Rxe8 29. Ba6 Nb3 30. Rd1 Re4 31. e3 c3 32. Rd8+ Kh7 33. Nxc3 Bxc3 34. bxc3 Ra4 35. Bb5 Rxa3 36. Rd7 Kg7 37. Bc4 a5 38. Rxf7+ Kh8 39. Bxb3 Rxb3 40. Ra7 Rxc3 41. Rxa5 Kg7 42. g4 Kf6 43. Kg2 Rc1 44. h4 1-0

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.27"]
[Round "5"]
[White "Alavi, Sayed Javad"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2445"]
[BlackElo "2209"]
[PlyCount "61"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 b6 7. Nc3 e5 8. Be3 Ne7 9. Qd2 h6 10. Ne2 Qc7 11. g4 Bd7 12. 0-0-0 0-0-0 13. Qc3 f5 14. gxf5 gxf5 15. Rdg1 fxe4 16. dxe4 Rh7 17. Rxg7 Rxg7 18. Nxe5 Ng6 19. Rg1 Be8 20. Bxh6 Rh7 21. Ng4 Bd7 22. Bg5 Rdh8 23. Ne3 Rxh3 24. Bf6 Rg8 25. Qc4 Rf8 26. Rxg6 Rh1+ 27. Kd2 Be8 28. Qe6+ Qd7+ 29. Qxd7+ Kxd7 30. Rg7+ Ke6 31. e5 1-0

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.27"]
[Round "6"]
[White "Hilwerda, Jonas"]
[Black "Mehmed, Elif"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "2209"]
[BlackElo "2199"]
[PlyCount "75"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 Be7 8. g5 Nfd7 9. Be3 b5 10. a3 Bb7 11. h4 Nc6 12. Bg2 Rc8 13. Nxc6 Rxc6 14. f4 Rc4 15. Qd2 0-0 16. h5 Qa8 17. Rg1 Rfc8 18. g6 Bf6 19. gxf7+ Kxf7 20. Qxd6 Rd8 21. 0-0-0 Be7 22. Qd2 Nf6 23. Qe2 Nxe4 24. Rxd8 Bxd8 25. Qd3 Nxc3 26. Qd7+ Be7 27. Bxb7 Ne2+ 28. Kd2 Qd8 29. Qxd8 Bxd8 30. Kxe2 Rxc2+ 31. Kd3 Rh2 32. Bd4 Bf6 33. Rh1 Rxh1 34. Bxh1 Bxd4 35. Kxd4 Kf6 36. Be4 g6 37. hxg6 hxg6 38. Kc5 1-0

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.26"]
[Round "4"]
[White "Hilwerda, Jonas"]
[Black "Mijatovic, Dusan"]
[Result "1-0"]
[ECO "C12"]
[WhiteElo "2209"]
[BlackElo "2202"]
[PlyCount "119"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Bc1 Nxc3 9. Qg4 Kf8 10. Qg3 Ne4 11. Qa3+ Kg8 12. Ne2 b6 13. h4 Ba6 14. Rh3 Qf8 15. f3 Bxe2 16. Qxf8+ Kxf8 17. Kxe2 Nc3+ 18. Kd2 c5 19. Kxc3 cxd4+ 20. Kxd4 Nc6+ 21. Ke3 Nxe5 22. Ba3+ Kg8 23. Bb2 f6 24. Bxe5 fxe5 25. Bd3 Kf7 26. h5 Rac8 27. Rh4 Rc7 28. Rb1 Ke7 29. Ra4 Rf8 30. Ra6 Rf4 31. g3 Rf7 32. a4 Kf6 33. a5 bxa5 34. Rb5 Rfd7 35. Rbxa5 Kf7 36. Ra4 Rb7 37. Rc6 Rdc7 38. Rd6 Rd7 39. Rxd7+ Rxd7 40. c4 Rc7 41. cxd5 exd5 42. Ra5 Ke6 43. Ra6+ Ke7 44. Bf5 Rc3+ 45. Kf2 Rc5 46. Rxa7+ Kf6 47. Bg6 e4 48. Rf7+ Ke6 49. fxe4 dxe4 50. Rxg7 Rc2+ 51. Ke3 Kf6 52. Bxe4 Rc3+ 53. Kd4 Ra3 54. Rg6+ Ke7 55. g4 Rg3 56. Ke5 Rg1 57. Kf4 Rf1+ 58. Bf3 Ra1 59. Rxh6 Kf7 60. Rb6 1-0

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.25"]
[Round "2"]
[White "Hilwerda, Jonas"]
[Black "Sethuraman, Sandeep"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2209"]
[BlackElo "2038"]
[PlyCount "79"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 Be6 8. f4 b5 9. f5 Bc8 10. Bg5 Nbd7 11. a4 b4 12. Nd5 Bb7 13. Qf3 Be7 14. Bxf6 Nxf6 15. 0-0-0 Bc6 16. Nxf6+ Bxf6 17. a5 Ba4 18. Rd5 0-0 19. g4 Bc6 20. Rd1 Ba4 21. Bc4 Qc7 22. Bd5 Rfc8 23. Rh2 Rab8 24. Kb1 Rb5 25. h4 Rxa5 26. g5 Bd8 27. f6 Rxd5 28. Rxd5 Bc6 29. Rd1 Qb7 30. Rxd6 Bxe4 31. Qg4 Bf3 32. Qf5 g6 33. Qd7 Qxd7 34. Rxd7 Bg4 35. Rd5 Bc7 36. Rc5 e4 37. Rd2 h5 38. Rd4 e3 39. Nc1 Kh7 40. Rdc4 1-0

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.25"]
[Round "3"]
[White "Rakshitta, Ravi"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2190"]
[BlackElo "2209"]
[PlyCount "109"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 0-0 5. Bg2 d6 6. d4 b5 7. 0-0 Bb7 8. Nbd2 Nbd7 9. c4 bxc4 10. bxc4 Ne4 11. Qc2 Nxd2 12. Nxd2 Bxg2 13. Kxg2 Qc8 14. e4 Rb8 15. Rfb1 Qa6 16. Bc3 c5 17. d5 Ne5 18. a4 Rxb1 19. Rxb1 f5 20. Bxe5 Bxe5 21. f4 Bd4 22. exf5 gxf5 23. Nf3 h6 24. Nh4 Qc8 25. Re1 Qd7 26. Re6 Rf6 27. Rxf6 Bxf6 28. Nxf5 h5 29. Ne3 Kg7 30. Qd1 Bd4 31. Qe2 Bxe3 32. Qxe3 Kf7 33. a5 a6 34. f5 Qa4 35. Qe6+ Kf8 36. f6 Qc2+ 37. Kh3 exf6 38. Qxd6+ Kg7 39. Qe7+ Kg6 40. Qe8+ Kh6 41. Qe6 Qf2 42. Qe4 Qf1+ 43. Kh4 Kg7 44. Qe7+ Kg6 45. Qe8+ Kg7 46. Qxh5 Qd3 47. Qg4+ Kh7 48. Kh5 Qc2 49. h4 Qd3 50. Qd7+ Kg8 51. Qe8+ Kg7 52. Qe7+ Kg8 53. Qxf6 Qxc4 54. d6 Qe2+ 55. Kh6 1-0

[Event "Paracin Orbis IM 4th"]
[Site "Paracin"]
[Date "2021.07.24"]
[Round "1"]
[White "Brankovic, Dejan"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2312"]
[BlackElo "2209"]
[PlyCount "71"]
[EventDate "2021.07.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. c3 Bg7 12. exf5 Bxf5 13. Nc2 0-0 14. Nce3 Be6 15. g3 f5 16. Bg2 f4 17. Nc2 Ra7 18. Be4 Qe8 19. Qe2 Qf7 20. 0-0-0 Nd4 21. Nxd4 exd4 22. Nxf4 Bxa2 23. Rxd4 Bxd4 24. cxd4 Qc4+ 25. Qxc4+ Bxc4 26. Kd2 a5 27. Ra1 b4 28. Bc2 b3 29. Be4 a4 30. Kc3 Re8 31. Kb4 d5 32. Nxd5 Kg7 33. Nc3 Bf7 34. Ka3 Rc7 35. f3 h6 36. d5 1-0

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.23"]
[Round "9"]
[White "Hilwerda, Jonas"]
[Black "Brankovic, Dejan"]
[Result "1-0"]
[ECO "B75"]
[WhiteElo "2209"]
[BlackElo "2312"]
[PlyCount "105"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. Be3 d6 8. f3 Qb6 9. Nf5 Qxb2 10. Nxg7+ Kf8 11. Nd5 Nxd5 12. Bxd5 Kxg7 13. 0-0 Qc3 14. Qc1 h5 15. Rb1 Qa5 16. c4 e6 17. Qb2+ f6 18. Bxe6 Bxe6 19. Qxb7+ Bf7 20. Qxc6 Qc3 21. Bf2 Rab8 22. Rxb8 Rxb8 23. Qxd6 Qe5 24. Qd7 a6 25. c5 Rb4 26. Rd1 Rc4 27. Qd3 Qb2 28. Bd4 Qc2 29. Qxc2 Rxc2 30. a3 Ba2 31. Be3 Kf7 32. Rd7+ Ke8 33. Rd6 Rc3 34. Bd4 Rc1+ 35. Kf2 Rc2+ 36. Kg3 g5 37. Bxf6 Rxc5 38. Rxa6 Kf7 39. h4 gxh4+ 40. Kxh4 Rc2 41. g3 Rf2 42. f4 Be6 43. Kxh5 Bc4 44. Rc6 Bb5 45. Rb6 Be2+ 46. Kg5 Rf3 47. Rb7+ Ke8 48. Kf5 Rxg3 49. a4 Bd3 50. a5 Re3 51. Rb4 Re2 52. Rd4 Bb5 53. Ke6 1-0

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.22"]
[Round "8"]
[White "Sethuraman, Sandeep"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2038"]
[BlackElo "2209"]
[PlyCount "96"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nc6 7. 0-0 e5 8. d5 Nb8 9. c5 Na6 10. cxd6 cxd6 11. Ne1 Bd7 12. a4 Ne8 13. Nd3 f5 14. e4 Nc5 15. Nxc5 dxc5 16. exf5 gxf5 17. d6 Bc6 18. Bxc6 bxc6 19. Be3 Qxd6 20. Qxd6 Nxd6 21. Bxc5 Rfd8 22. Rfd1 Nc4 23. Rxd8+ Rxd8 24. Bxa7 Ra8 25. Bc5 Nxb2 26. Ra2 Nd3 27. Bb6 e4 28. Ne2 Kf7 29. a5 Ke6 30. Ra4 Kd5 31. Be3 Ra6 32. Nf4+ Nxf4 33. Bxf4 Bc3 34. Bc7 Kc5 35. Ra3 Bb4 36. Ra2 Kc4 37. Bb6 Kb3 38. Re2 Bxa5 39. Bxa5 Rxa5 40. g4 fxg4 41. Rxe4 c5 42. Rxg4 c4 43. Rg7 c3 44. Rxh7 c2 45. Rc7 Ra1+ 46. Kg2 c1Q 47. Rxc1 Rxc1 48. Kg3 Kc4 0-1

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.21"]
[Round "7"]
[White "Hilwerda, Jonas"]
[Black "Ilincic, Zlatko"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2209"]
[BlackElo "2395"]
[PlyCount "90"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 h5 7. f4 Nc6 8. Nxc6 bxc6 9. Bc4 Qb6 10. Qd2 e6 11. 0-0-0 Ng4 12. Rde1 Qf2 13. Re2 Qc5 14. Bb3 Nxh2 15. Rxh2 Qg1+ 16. Qe1 Qxh2 17. g4 Qh3 18. Re3 Qg2 19. Rg3 Qh2 20. e5 d5 21. Nd1 hxg4 22. Rxg4 Bd7 23. Ba4 Qh1 24. Qf2 Qe4 25. Nc3 Qb4 26. Qf3 Rb8 27. Bb3 Qb7 28. Bh4 c5 29. f5 exf5 30. Bxd5 Qxb2+ 31. Kd1 Rb4 32. Bc4 Be7 33. Bxe7 Rh1+ 34. Kd2 Rh2+ 35. Rg2 Rxg2+ 36. Qxg2 Rxc4 37. Qa8+ Kxe7 38. Nd5+ Ke6 39. Nc7+ Kxe5 40. Qd5+ Kf4 41. Qxc4+ Qd4+ 42. Qxd4+ cxd4 43. Nxa6 Kg3 44. Nc5 Bc6 45. a4 f4 0-1

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.20"]
[Round "5"]
[White "Hilwerda, Jonas"]
[Black "Pavlov, Mark"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2209"]
[BlackElo "2195"]
[PlyCount "69"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 a6 5. Nf3 b5 6. Bd3 Nd7 7. a4 b4 8. Ne2 c5 9. c3 a5 10. g4 Ba6 11. Be3 Bxd3 12. Qxd3 bxc3 13. bxc3 cxd4 14. Bxd4 e5 15. fxe5 Nxe5 16. Nxe5 dxe5 17. Qb5+ Qd7 18. Bb6 Qxb5 19. axb5 Nf6 20. Bxa5 Nxe4 21. 0-0 Nd2 22. Bb4 Rd8 23. Rfd1 e4 24. Kf2 f5 25. gxf5 gxf5 26. Nd4 Rxd4 27. cxd4 Bxd4+ 28. Ke2 Bxa1 29. Rxa1 Kd7 30. Bxd2 Rb8 31. Rb1 Rb7 32. Bf4 Ke6 33. b6 Kd5 34. Bc7 Kc6 35. Ke3 1-0

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.20"]
[Round "6"]
[White "Potpara, Nikola"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2370"]
[BlackElo "2209"]
[PlyCount "61"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 b6 3. c4 Bb7 4. Nc3 d6 5. Nf3 Nbd7 6. d5 e5 7. Be3 Be7 8. h3 0-0 9. g4 a6 10. Bg2 b5 11. Nd2 Rc8 12. b3 c6 13. g5 Nh5 14. h4 b4 15. Na4 cxd5 16. cxd5 f5 17. Nc4 e4 18. f4 exf3 19. exf3 f4 20. Bf2 Rxc4 21. bxc4 Ne5 22. Qb3 Qe8 23. 0-0-0 Nxc4 24. Qxc4 Qxa4 25. Bh3 Qa3+ 26. Kb1 Qxf3 27. Be6+ Kh8 28. Rhf1 Bd8 29. Bc5 Qg3 30. Bxd6 Re8 31. Bf7 1-0

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.19"]
[Round "4"]
[White "Mehmed, Elif"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2199"]
[BlackElo "2209"]
[PlyCount "119"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Ne7 9. c4 Ng6 10. Qa4 Bd7 11. Qb4 Qb8 12. h4 h5 13. Be3 b6 14. Be2 Be7 15. g3 a6 16. Nc3 b5 17. cxb5 axb5 18. Bxb5 0-0 19. a4 f5 20. Bg5 f4 21. 0-0-0 Qb6 22. Rd2 Bxg5 23. hxg5 fxg3 24. fxg3 Bxb5 25. Nxb5 Qe3 26. Nxd6 Rfb8 27. Nb5 Rxb5 28. axb5 Ra1+ 29. Kc2 Rxh1 30. b6 Nf8 31. b7 Nd7 32. b8Q+ Nxb8 33. Qxb8+ Kf7 34. Qb7+ Kg6 35. d6 Qc5+ 36. Kb3 Re1 37. Qa6 Ra1 38. Qd3+ Kxg5 39. d7 Qb6+ 40. Kc2 Qc6+ 41. Qc3 Qe4+ 42. Rd3 Ra8 43. Qc5 Kg4 44. Qb6 Qc4+ 45. Kd2 Ra1 46. Qg6+ Kh3 47. Qxh5+ Kg2 48. Qe2+ Kg1 49. Qe3+ Kh1 50. Ke2 Qc2+ 51. Qd2 Qc6 52. Qd1+ Rxd1 53. Rxd1+ Kg2 54. d8Q Qc2+ 55. Qd2 Qf5 56. Ke1+ Kg1 57. Qe3+ Kg2 58. Rd2+ Kh1 59. Qe2 Qb1+ 60. Rd1 1-0

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.18"]
[Round "3"]
[White "Hilwerda, Jonas"]
[Black "Alavi, Sayed Javad"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2209"]
[BlackElo "2445"]
[PlyCount "113"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 0-0 8. Qc2 Re8+ 9. Ne2 h5 10. 0-0 h4 11. h3 Nd7 12. Bd2 Nf8 13. Rae1 Bc7 14. f4 g6 15. f5 g5 16. Qd1 Qd6 17. Nf4 Bd7 18. Qg4 Nh7 19. Nh5 Qf8 20. Be3 Kh8 21. Re2 Rad8 22. Rfe1 Bc8 23. b4 Bd7 24. a3 a5 25. Bc4 axb4 26. axb4 Bd6 27. Bf2 Rxe2 28. Rxe2 Re8 29. Rxe8 Qxe8 30. Kf1 Qf8 31. g3 Qc8 32. Bd3 hxg3 33. Bxg3 Bxg3 34. Nxg3 Qa8 35. Kf2 Qa1 36. Ne2 Qd1 37. Qe4 Kg7 38. Bc4 b5 39. Bd3 Nf8 40. Bc2 Qa1 41. Bb3 Qa3 42. Bc2 Qb2 43. Ke3 Qa1 44. Bb1 Qb2 45. Qc2 Qa3 46. Ng3 Nh7 47. Kd2 Qa8 48. Qe4 Qb8 49. Ne2 Kf8 50. Qf3 Kg7 51. Bc2 Qc7 52. Qg3 Qc8 53. Qg4 Qc7 54. Kc1 Qh2 55. Bd3 Nf8 56. Kd2 Qh1 57. Be4 1-0

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.18"]
[Round "2"]
[White "Isha, Sharma"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2213"]
[BlackElo "2209"]
[PlyCount "52"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. c3 Bg7 13. Qh5 0-0 14. exf5 Bxd5 15. f6 e4 16. fxg7 Re8 17. Qxd5 exd3+ 18. Kf1 Ne5 19. h4 Qf6 20. Rh3 Qf4 21. Rd1 Ng4 22. Qd4 Re4 23. Qb6 Rae8 24. g3 Re1+ 25. Rxe1 Rxe1+ 26. Kg2 Qe4+ 0-1

[Event "Paracin Orbis IM 3rd"]
[Site "Paracin"]
[Date "2021.07.17"]
[Round "1"]
[White "Rowe, Duane"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2157"]
[BlackElo "2209"]
[PlyCount "134"]
[EventDate "2021.07.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SRB"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Nc6 6. Be2 cxd4 7. cxd4 e6 8. 0-0 Be7 9. Nc3 Qd6 10. Nb5 Qd8 11. Ne5 Bd7 12. Be3 0-0 13. a3 Nd5 14. Nxd7 Qxd7 15. Nc3 Rfd8 16. Qd3 Nxc3 17. bxc3 e5 18. Rad1 Bxa3 19. d5 Ne7 20. c4 Qd6 21. f4 Ng6 22. f5 Nf4 23. Bxf4 exf4 24. Qf3 Bc5+ 25. Kh1 Re8 26. Bd3 Be3 27. Rde1 Qh6 28. Re2 Re7 29. g3 Rae8 30. Rg2 fxg3 31. f6 Qxf6 32. Qxf6 gxf6 33. Rxf6 Bd4 34. Rxg3+ Kf8 35. Rff3 Re1+ 36. Kg2 Rg1+ 37. Kh3 Rxg3+ 38. hxg3 Re3 39. Rxe3 Bxe3 40. Bxh7 Ke7 41. Kg4 Kd6 42. Kf3 Bg1 43. Ke4 Kc5 44. Kd3 Bh2 45. Bg8 f6 46. g4 Kb4 47. d6 Bxd6 48. Kc2 Be5 49. Bd5 b6 50. Kb1 Ka3 51. Bg8 Bd4 52. Bf7 Bc5 53. Kc2 a5 54. Be8 Bd4 55. Kb1 Kb3 56. Bf7 Bc5 57. Be6 Ka3 58. Kc2 Bd4 59. Bf7 Kb4 60. Bg8 Be5 61. Bf7 b5 62. cxb5 Kxb5 63. Be6 a4 64. Bd7+ Ka5 65. Kd3 Ba1 66. Be8 Bb2 67. Bf7 Be5 1/2-1/2

[Event "Titled Tuesday intern op 22nd Dec"]
[Site "Chess.com INT"]
[Date "2020.12.22"]
[Round "2"]
[White "Hansch, Karsten"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "B04"]
[WhiteElo "2300"]
[BlackElo "2209"]
[PlyCount "106"]
[EventDate "2020.12.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. 0-0 0-0 8. h3 Nc6 9. Bf4 dxe5 10. dxe5 Na5 11. Nc3 Nxb3 12. axb3 c6 13. Qxd8 Rxd8 14. Be3 Bf5 15. Nd4 Bxe5 16. Nxf5 gxf5 17. Rxa7 Rxa7 18. Bxb6 Raa8 19. Bxd8 Rxd8 20. Rd1 Rd6 21. Rxd6 Bxd6 22. f3 Kg7 23. Kf2 Bc5+ 24. Ke2 Kf6 25. Nb1 Ke5 26. Nd2 Kf4 27. Nf1 h5 28. g3+ Kg5 29. f4+ Kf6 30. Nd2 Bd6 31. Kf3 Ke6 32. Nc4 Bc7 33. c3 f6 34. b4 Kf7 35. Ne3 Kg6 36. Ng2 e6 37. Ke3 Bb6+ 38. Kf3 Kf7 39. Ne1 e5 40. Ng2 Ke6 41. Nh4 c5 42. bxc5 Bxc5 43. Ke2 Bd6 44. Kf3 Bc7 45. b3 Ba5 46. c4 Be1 47. Ng2 Bd2 48. Nh4 Bc1 49. Ng6 Bd2 50. Nh4 Bc1 51. Ng6 Bd2 52. Nf8+ Ke7 53. Ng6+ Ke6 1/2-1/2

[Event "Titled Tuesday intern op 22nd Dec"]
[Site "Chess.com INT"]
[Date "2020.12.22"]
[Round "1"]
[White "Karas, Marek"]
[Black "Hilwerda, Jonas"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2196"]
[BlackElo "2209"]
[PlyCount "171"]
[EventDate "2020.12.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. Bf4 Bb7 4. e3 g6 5. Nbd2 Bg7 6. a4 0-0 7. h3 a5 8. Be2 d6 9. 0-0 Nbd7 10. Bh2 Qe8 11. Nc4 Ne4 12. c3 Rd8 13. Qc2 e5 14. dxe5 dxe5 15. Rfd1 Qe7 16. Na3 Ng5 17. Nxg5 Qxg5 18. Bf1 Nc5 19. Nb5 Be4 20. Qe2 Bd3 21. Qf3 Be4 22. Qg3 Qxg3 23. Bxg3 c6 24. Nd6 Bc2 25. Rd2 Nb3 26. Rad1 Nxd2 27. Rxd2 Bxa4 28. f4 Rfe8 29. Bc4 Re7 30. Bh4 Kf8 31. Bxe7+ Kxe7 32. Ne4 Rxd2 33. Nxd2 exf4 34. exf4 f5 35. Kf2 b5 36. Bd3 b4 37. cxb4 axb4 38. b3 Bb5 39. Nc4 Bxc4 40. Bxc4 h6 41. Kf3 g5 42. g4 Kf6 43. Ba6 Bf8 44. Bb7 c5 45. Bc6 Bd6 46. fxg5+ hxg5 47. Bd7 f4 48. Ke4 Be5 49. Bb5 Bd4 50. Be2 Be3 51. Bc4 Bd4 52. Be2 Be3 53. Bc4 Bd4 54. Kf3 Ke5 55. Bf1 Be3 56. Be2 Kd4 57. Bc4 Kc3 58. h4 gxh4 59. g5 h3 60. g6 Bd4 61. Bd5 Kd2 62. Kxf4 h2 63. Kg3 Be5+ 64. Kg2 Ke3 65. Bf7 Kf4 66. Kxh2 Kg5+ 67. Kg2 Kf6 68. Kf3 Kg7 69. Ke4 Bd4 70. Kd5 Bg1 71. Ke6 Bd4 72. Kf5 Bg1 73. Ke4 Bd4 74. Kf3 Bg1 75. Ke2 Bd4 76. Kf1 Kf8 77. Bc4 Kg7 78. Bd3 Kf8 79. Ke2 Kg7 80. Kf3 Kf8 81. Ke4 Kg7 82. Kf5 Bg1 83. Bc4 Bd4 84. Bd3 Bg1 85. Bc4 Bd4 86. Bd3 1/2-1/2

[Event "Chess.com Bullet op2"]
[Site "Chess.com INT"]
[Date "2020.12.19"]
[Round "17"]
[White "Hilwerda, Jonas"]
[Black "Omariev, Maksim"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2209"]
[BlackElo "2304"]
[PlyCount "13"]
[EventDate "2020.12.19"]
[EventType "swiss (blitz)"]
[EventRounds "21"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. Nc3 Nc6 5. Nb5 e5 6. dxe5 Ne4 7. Qxd5 1-0

[Event "Chess.com Bullet op2"]
[Site "Chess.com INT"]
[Date "2020.12.19"]
[Round "21"]
[White "Hilwerda, Jonas"]
[Black "Pischal, Yulia"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2209"]
[BlackElo "1963"]
[PlyCount "61"]
[EventDate "2020.12.19"]
[EventType "swiss (blitz)"]
[EventRounds "21"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 g6 3. h4 Bg7 4. h5 Nf6 5. hxg6 hxg6 6. Rxh8+ Bxh8 7. Nc3 e6 8. e4 Qe7 9. e5 Qf7 10. exf6 Bxf6 11. Bxf6 Qxf6 12. Qd2 d6 13. 0-0-0 Nc6 14. d5 Ne5 15. dxe6 Bxe6 16. f4 Ng4 17. Re1 Kd7 18. Bb5+ c6 19. Be2 Nh6 20. Nf3 Nf7 21. Ng5 Nxg5 22. fxg5 Qg7 23. Bf3 Re8 24. Ne2 Qh7 25. Nf4 Qh4 26. Nxe6 Rxe6 27. Rxe6 Kxe6 28. Qe3+ Kd7 29. b3 Qg3 30. Bxc6+ bxc6 31. Qxg3 1-0

[Event "Chess.com Bullet op2"]
[Site "Chess.com INT"]
[Date "2020.12.19"]
[Round "18"]
[White "Prohorov, Olexandr"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2086"]
[BlackElo "2209"]
[PlyCount "116"]
[EventDate "2020.12.19"]
[EventType "swiss (blitz)"]
[EventRounds "21"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 0-0 5. h3 d6 6. Be2 Nbd7 7. 0-0 Qe8 8. Bh2 e5 9. c4 e4 10. Nfd2 h6 11. Nc3 Qe7 12. Qc2 Re8 13. Rae1 Nf8 14. f3 exf3 15. Bxf3 N8h7 16. Nd5 Nxd5 17. cxd5 Ng5 18. Kh1 Bf5 19. Qc3 Rac8 20. e4 Bd7 21. Bf4 Nxf3 22. Nxf3 Qf8 23. Bh2 f5 24. Qd3 fxe4 25. Rxe4 Bf5 26. Rxe8 Rxe8 27. Qd2 Qf7 28. Nh4 Qxd5 29. Re1 Rxe1+ 30. Qxe1 Be4 31. Qf2 g5 32. Nf3 Bxf3 33. gxf3 Bxd4 34. Qe2 Qe5 35. Qd2 Qe3 36. Qxe3 Bxe3 37. Kg2 Bf4 38. Bg1 Be5 39. Be3 c5 40. Kf1 Bd4 41. Ke2 Bxb2 42. Kd3 Bd4 43. Bd2 Be5 44. Kc4 Kf7 45. Kd5 Ke7 46. Be3 b5 47. a4 Bd4 48. Bc1 bxa4 49. Ba3 Bc3 50. Ke4 Bb4 51. Kd5 Bxa3 52. Kc4 Bb4 53. Kd3 a3 54. Kc2 a5 55. Kb1 a4 56. Ka1 d5 57. h4 d4 58. f4 c4 0-1

[Event "Chess.com Bullet op2"]
[Site "Chess.com INT"]
[Date "2020.12.19"]
[Round "20"]
[White "Sviridova, Vlada"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "2144"]
[BlackElo "2209"]
[PlyCount "103"]
[EventDate "2020.12.19"]
[EventType "swiss (blitz)"]
[EventRounds "21"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Nc3 0-0 7. Be2 Re8 8. 0-0 Ngxe5 9. Nxe5 Nxe5 10. a3 a5 11. Rb1 Ra6 12. Na4 Ba7 13. c5 Rh6 14. g3 b5 15. Bxb5 Bb7 16. f4 Ng6 17. Qxd7 Qa8 18. c6 Ba6 19. Bxa6 Rd8 20. Qg4 Nf8 21. Bb7 Qb8 22. Kg2 Rg6 23. Qf5 Ne6 24. e4 Nd4 25. Qe5 Rgd6 26. f5 Ne2 27. Rf3 Bd4 28. Qxd6 cxd6 29. Be3 Bxe3 30. Rxe3 Nd4 31. Rd3 Nxc6 32. Bxc6 Rc8 33. Bd5 Qc7 34. Kf3 Qc2 35. Rbd1 Qc7 36. R1d2 Qd8 37. Nc3 Qg5 38. h4 Qh5+ 39. Kg2 Qg4 40. Kh2 h6 41. Ne2 Kh7 42. Nf4 Rc1 43. Ng2 Qh5 44. e5 Qg4 45. exd6 Rh1+ 46. Kxh1 Qh3+ 47. Kg1 Qg4 48. d7 Qh5 49. d8Q Qg4 50. Qe7 Kg8 51. Qxf7+ Kh7 52. Qg8# 1-0

[Event "Titled Tuesday intern op 11th Aug"]
[Site "Chess.com INT"]
[Date "2020.08.11"]
[Round "1"]
[White "Gelman, Alexander"]
[Black "Hilwerda, Jonas"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2403"]
[BlackElo "2209"]
[PlyCount "45"]
[EventDate "2020.08.11"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 c6 4. f3 Bf5 5. g4 Bg6 6. h4 h5 7. g5 Nfd7 8. e4 dxe4 9. fxe4 Qa5 10. Nf3 Bxe4 11. Qe2 Bd5 12. g6 fxg6 13. 0-0-0 Na6 14. Nxd5 cxd5 15. Qe6 Rc8 16. Bh3 Qa4 17. Kb1 Qxc2+ 18. Ka1 Qa4 19. Ne5 Nab8 20. Qxg6+ Kd8 21. Nf7+ Ke8 22. Nd6+ Kd8 23. Nxb7# 1-0

[Event "Titled Tuesday intern op 11th Aug"]
[Site "Chess.com INT"]
[Date "2020.08.11"]
[Round "7"]
[White "Hamley, Ryan"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "A52"]
[WhiteElo "2089"]
[BlackElo "2209"]
[PlyCount "72"]
[EventDate "2020.08.11"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 g5 5. Bg3 Nc6 6. Nf3 Bg7 7. Nc3 Ngxe5 8. e3 d6 9. Be2 Be6 10. Nxe5 Nxe5 11. 0-0 h5 12. h3 g4 13. h4 Ng6 14. c5 dxc5 15. Qa4+ c6 16. Ne4 Be5 17. Nxc5 Bxg3 18. fxg3 Qd6 19. Nxe6 Qxe6 20. Bc4 Qxe3+ 21. Kh2 0-0-0 22. Bxf7 Ne5 23. Rae1 Qc5 24. b4 Qd4 25. Be6+ Kb8 26. Rf4 Qc3 27. Rfe4 Nd3 28. R1e3 Rhf8 29. b5 Rf1 30. bxc6 Nf2 31. Re1 Rxe1 32. Rxe1 Qxe1 33. Qf4+ Ka8 34. cxb7+ Kxb7 35. Qf7+ Kb6 36. Qxf2+ Qxf2 0-1

[Event "Titled Tuesday intern op 11th Aug"]
[Site "Chess.com INT"]
[Date "2020.08.11"]
[Round "5"]
[White "Hilwerda, Jonas"]
[Black "Chumpitaz Carbajal, Ann"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2209"]
[BlackElo "2244"]
[PlyCount "101"]
[EventDate "2020.08.11"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. Nd2 d5 4. e3 c5 5. c3 Nc6 6. Ngf3 Qb6 7. Qb3 c4 8. Qc2 Be7 9. e4 h6 10. e5 Nd7 11. Be2 Qc7 12. h4 a6 13. h5 b5 14. Rh3 b4 15. g4 bxc3 16. bxc3 Rb8 17. g5 hxg5 18. Bxg5 Bf8 19. Nh4 Ndxe5 20. dxe5 Qxe5 21. Nhf3 Qd6 22. Bh4 e5 23. Rd1 Bxh3 24. Nxc4 Qe6 25. Ng5 Qf5 26. Qa4 Qd7 27. Nxh3 f6 28. Ne3 d4 29. Bf3 Rc8 30. cxd4 Nxd4 31. Qxd7+ Kxd7 32. Bg4+ Kc7 33. Rc1+ Kb7 34. Bxc8+ Kb6 35. Nd5+ Ka7 36. Bg4 f5 37. Be2 g6 38. Bf6 Bb4+ 39. Nxb4 Rf8 40. Bxe5 Ne6 41. Nc6+ Kb6 42. Nd4 Nc5 43. Bd6 Re8 44. Bxc5+ Kb7 45. hxg6 Kb8 46. Kd2 f4 47. Bd6+ Ka8 48. Bf3+ Ka7 49. Rb1 a5 50. Nc6+ Ka6 51. Be2+ 1-0

[Event "Titled Tuesday intern op 11th Aug"]
[Site "Chess.com INT"]
[Date "2020.08.11"]
[Round "10"]
[White "Hilwerda, Jonas"]
[Black "Novoselski, Zoran"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2209"]
[BlackElo "2318"]
[PlyCount "53"]
[EventDate "2020.08.11"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 b6 3. Nc3 Bb7 4. f3 g6 5. e4 Bg7 6. Qd2 0-0 7. 0-0-0 d6 8. Bh6 c5 9. d5 a6 10. h4 b5 11. h5 b4 12. Na4 Nfd7 13. Bxg7 Kxg7 14. hxg6 hxg6 15. Qh6+ Kf6 16. Ne2 Ne5 17. Qf4+ Kg7 18. Qh6+ Kf6 19. f4 Nc4 20. Qg5+ Kg7 21. Qh6+ Kf6 22. Ng3 e5 23. Qg5+ Kg7 24. Nf5+ Kg8 25. Rh8+ Kxh8 26. Qh6+ Kg8 27. Qg7# 1-0

[Event "Titled Tuesday intern op 11th Aug"]
[Site "Chess.com INT"]
[Date "2020.08.11"]
[Round "6"]
[White "Hilwerda, Jonas"]
[Black "Sadykov, Ramil"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2209"]
[BlackElo "2345"]
[PlyCount "32"]
[EventDate "2020.08.11"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. Nc3 e6 5. Nb5 Na6 6. c3 Be7 7. Nf3 0-0 8. a4 Nh5 9. Bd3 Nxf4 10. exf4 c4 11. Bc2 Bd7 12. Ne5 Nc7 13. Nxc7 Qxc7 14. h4 Bd6 15. Qh5 f5 16. g4 Be8 0-1

[Event "Titled Tuesday intern op 11th Aug"]
[Site "Chess.com INT"]
[Date "2020.08.11"]
[Round "9"]
[White "Hilwerda, Jonas"]
[Black "Vega Gutierrez, Sabrina Neide"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2209"]
[BlackElo "2380"]
[PlyCount "110"]
[EventDate "2020.08.11"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. Nc3 cxd4 5. exd4 a6 6. Nf3 Bg4 7. Be2 Nc6 8. Ne5 Bxe2 9. Nxe2 e6 10. c3 Bd6 11. Nxc6 bxc6 12. 0-0 0-0 13. Re1 c5 14. Bxd6 Qxd6 15. dxc5 Qxc5 16. Qd4 Rfc8 17. Qxc5 Rxc5 18. Nd4 Rb8 19. Re2 Ne4 20. f3 Nd6 21. Kf2 a5 22. Rc1 Nc4 23. b3 Nd6 24. Rec2 Rbc8 25. Ke3 e5 26. Ne2 f6 27. Kd3 Kf7 28. Ng3 Ke6 29. Ne2 Nb5 30. b4 Rc4 31. bxa5 Ra8 32. Rb2 Rxa5 33. Rcb1 Nd6 34. Ke3 Ra3 35. Kd2 f5 36. Kd3 g5 37. g3 e4+ 38. fxe4 dxe4+ 39. Kc2 Ke5 40. Kd2 f4 41. gxf4+ gxf4 42. Nd4 Rcxc3 43. Nb5 Rd3+ 44. Ke2 Re3+ 45. Kf2 Rad3 46. Na7 Rh3 47. Nc6+ Kf5 48. Kg2 Rh6 49. Ne7+ Kg4 50. Rg1 Nc4 51. Nc6 Ne3+ 52. Kf2+ Kf5 53. Ne7+ Ke5 54. Nc6+ Kd6 55. Nb8 Rxh2+ 0-1

[Event "Titled Tuesday intern op 11th Aug"]
[Site "Chess.com INT"]
[Date "2020.08.11"]
[Round "4"]
[White "Noguera da Almeida, Beatriz"]
[Black "Hilwerda, Jonas"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "1804"]
[BlackElo "2209"]
[PlyCount "78"]
[EventDate "2020.08.11"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nc3 Bb4 7. Bd3 d5 8. exd5 cxd5 9. Qe2+ Qe7 10. Bd2 Qxe2+ 11. Bxe2 Bf5 12. 0-0-0 c6 13. a3 Ba5 14. Rhe1 0-0-0 15. Ba6+ Kb8 16. Re7 Rd7 17. Rde1 Rhd8 18. Bf4+ Bc7 19. Bd2 Bd6 20. R7e2 Ne4 21. Nxe4 Bxe4 22. f3 Bf5 23. g4 Be6 24. h3 f6 25. Ba5 Bc7 26. Bb4 Bf7 27. Re3 Bf4 28. Kb1 Bxe3 29. Rxe3 d4 30. Rd3 Re8 31. b3 Bg6 32. Rd1 Re3 33. Bd2 Rxb3+ 34. Ka2 Rxf3 35. Ba5 Bxc2 36. Re1 Re3 37. Rc1 Bb3+ 38. Kb2 Bd5 39. Ka1 Rxa3+ 0-1

