[Event "GER-chT School WK 3"]
[Site "Playchess.com INT"]
[Date "2020.06.15"]
[Round "2.4"]
[White "Hanisch, Nele"]
[Black "Sonntag, Jan Hendric"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1620"]
[BlackElo "1581"]
[PlyCount "80"]
[EventDate "2020.06.15"]
[EventType "team-swiss (blitz)"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Magdeburg Siemens Gymn"]
[BlackTeam "Wismar G Hausmann Gymn"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. Bf4 e6 6. e3 Bb4 7. Qd2 Ne4 8. Qc1 Nd7 9. Bd3 Qa5 10. Bxe4 Bxe4 11. a3 Be7 12. b4 Qa6 13. Nxe4 dxe4 14. Nd2 0-0 15. 0-0 b6 16. Nxe4 f5 17. Nd6 Bxd6 18. Bxd6 Rf7 19. Rd1 Nf6 20. c5 Rd8 21. Qc2 Ne4 22. Qb3 Rf6 23. Be7 Rh6 24. Bxd8 Qe2 25. Rf1 Nd2 26. Qb2 Nf3+ 27. gxf3 Qxb2 28. Rab1 Qxa3 29. Ra1 Qxb4 30. Rab1 Qa5 31. Ra1 Qc3 32. Rac1 Qb3 33. Rb1 Qd5 34. Bg5 Qd7 35. Bxh6 a5 36. Rxb6 a4 37. Rb8+ Kf7 38. Rfb1 a3 39. R8b7 a2 40. Rxd7+ Ke8 0-1

[Event "GER-chT School WK 3"]
[Site "Playchess.com INT"]
[Date "2020.06.15"]
[Round "4.4"]
[White "Schwientek, Simon"]
[Black "Sonntag, Jan Hendric"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1384"]
[BlackElo "1581"]
[PlyCount "30"]
[EventDate "2020.06.15"]
[EventType "team-swiss (blitz)"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Muelheim Markgraefler Gymn"]
[BlackTeam "Wismar G Hausmann Gymn"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 d6 5. 0-0 Bg4 6. h3 Bh5 7. d3 h6 8. Nd5 Nf6 9. Nxf6+ Qxf6 10. a3 Nd4 11. c3 Nxf3+ 12. gxf3 Bxf3 13. Qc2 Qg6+ 14. Bg5 Qxg5+ 15. Kh2 Qg2# 0-1

[Event "GER-chT School WK 3"]
[Site "Playchess.com INT"]
[Date "2020.06.15"]
[Round "3.4"]
[White "Sonntag, Jan Hendric"]
[Black "Hertrich, Luis"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1581"]
[BlackElo "1454"]
[PlyCount "12"]
[EventDate "2020.06.15"]
[EventType "team-swiss (blitz)"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Wismar G Hausmann Gymn"]
[BlackTeam "Naila Hochfranken Gymn"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. Nc3 Bc5 3. Nf3 Qf6 4. b3 g5 5. Bb2 g4 6. Nxe5 Qxf2# 0-1

[Event "Mecklenburg VP-ch U14"]
[Site "Malchow"]
[Date "2019.02.06"]
[Round "7.8"]
[White "Sonntag, Jan Hendric"]
[Black "Hampe, Tobias"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "1141"]
[BlackElo "809"]
[PlyCount "55"]
[EventDate "2019.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 c5 3. d3 Bg7 4. e4 e5 5. f4 Nf6 6. fxe5 Nh5 7. g4 Qh4+ 8. Kd2 Nf4 9. Kc2 Ne6 10. Be3 Bxe5 11. Nf3 Qe7 12. Nxe5 Nd4+ 13. Bxd4 cxd4 14. Nf3 dxc3 15. bxc3 d5 16. cxd5 Bxg4 17. Be2 Bxf3 18. Bxf3 0-0 19. Qd2 Nd7 20. Rag1 Ne5 21. Qe3 Nxf3 22. Qxf3 Qe8 23. h4 h5 24. Qxh5 Rd8 25. Qh6 Rd6 26. h5 Qa4+ 27. Kd2 Qxa2+ 28. Ke3 1-0

[Event "Mecklenburg VP-ch U14"]
[Site "Malchow"]
[Date "2019.02.05"]
[Round "6.6"]
[White "Engel, Benedikt"]
[Black "Sonntag, Jan Hendric"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1022"]
[BlackElo "1141"]
[PlyCount "75"]
[EventDate "2019.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Bf5 3. e3 e6 4. c4 Nf6 5. Nf3 Be7 6. Be2 0-0 7. 0-0 Nc6 8. Nbd2 Ne4 9. Nxe4 Bxe4 10. c5 b6 11. Qa4 Nb8 12. b4 Nd7 13. Rac1 Nf6 14. Ne5 a5 15. b5 Rc8 16. h3 Bf5 17. Rc2 Ne4 18. Rcc1 Bh4 19. Bf3 Nd2 20. Rfe1 Nxf3+ 21. gxf3 f6 22. Nc6 Qe8 23. Kg2 Bd3 24. Bg3 Bxg3 25. fxg3 f5 26. Rc3 Bc4 27. Rb1 Rf6 28. Ne5 Rh6 29. Nxc4 dxc4 30. Qxc4 Qh5 31. Rh1 g5 32. d5 e5 33. g4 fxg4 34. fxg4 Qh4 35. cxb6 Rf8 36. Rc2 Rxb6 37. d6+ Kg7 38. Qxc7+ 1-0

[Event "Mecklenburg VP-ch U14"]
[Site "Malchow"]
[Date "2019.02.05"]
[Round "5.6"]
[White "Sonntag, Jan Hendric"]
[Black "Scharf, Christian"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "1141"]
[BlackElo "1050"]
[PlyCount "27"]
[EventDate "2019.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. d3 c6 4. e4 d4 5. Nce2 e5 6. f4 Nd7 7. Nf3 Bd6 8. g3 f6 9. Bg2 Bb4+ 10. Bd2 Qa5 11. 0-0 Bxd2 12. Nxd2 c5 13. Nf3 b5 14. b3 1/2-1/2

[Event "Mecklenburg VP-ch U14"]
[Site "Malchow"]
[Date "2019.02.04"]
[Round "4.9"]
[White "Hartig, Maximilian"]
[Black "Sonntag, Jan Hendric"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "993"]
[BlackElo "1141"]
[PlyCount "18"]
[EventDate "2019.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. Be3 Bb6 6. Nc3 d6 7. h3 Be6 8. Bxe6 fxe6 9. Qd2 Nf6 0-1

[Event "Mecklenburg VP-ch U14"]
[Site "Malchow"]
[Date "2019.02.03"]
[Round "2.9"]
[White "Kraemer, Bruno"]
[Black "Sonntag, Jan Hendric"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "870"]
[BlackElo "1141"]
[PlyCount "86"]
[EventDate "2019.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. e3 Bg4 4. h3 Bh5 5. c4 f6 6. b3 e6 7. a3 a5 8. Bd2 b6 9. Bd3 e5 10. cxd5 Qxd5 11. Nc3 Qd7 12. Be4 Rd8 13. Qc2 Bxf3 14. gxf3 exd4 15. exd4 Nxd4 16. Qb2 Qe6 17. Rd1 f5 18. Be3 fxe4 19. Rxd4 Rxd4 20. Bxd4 exf3+ 21. Kd1 Qd6 22. Nb5 Qd7 23. a4 c5 24. Re1+ Ne7 25. Re4 cxd4 26. Rxd4 Qxh3 27. Nd6+ Kd7 28. Nf7+ Ke8 29. Nxh8 Qf1+ 30. Kc2 Qxf2+ 31. Rd2 Qc5+ 32. Kd1 Nf5 33. Rf2 Qd4+ 34. Qd2 Qxd2+ 35. Kxd2 Nh4 36. Rh2 g5 37. Rh3 Bc5 38. Rg3 f2 39. Ke2 h6 40. Rg4 Kf8 41. Re4 Kg7 42. Re8 g4 43. Re6 g3 0-1

[Event "Mecklenburg VP-ch U14"]
[Site "Malchow"]
[Date "2019.02.03"]
[Round "3.6"]
[White "Sonntag, Jan Hendric"]
[Black "Kruse, Johannes"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1141"]
[BlackElo "1454"]
[PlyCount "45"]
[EventDate "2019.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. e4 e6 4. d3 Nf6 5. f4 d6 6. Nf3 Be7 7. Be3 0-0 8. Be2 d5 9. e5 Ng4 10. Bd2 f6 11. h3 Nh6 12. cxd5 exd5 13. exf6 Bxf6 14. g4 Be7 15. g5 Nf5 16. Qb3 Be6 17. h4 Ncd4 18. Qd1 Ng3 19. Rh2 Ngxe2 20. Nxd4 Nxd4 21. h5 Bxg5 22. Rg2 Bh4+ 23. Kf1 0-1

[Event "Mecklenburg VP-ch U14"]
[Site "Malchow"]
[Date "2019.02.02"]
[Round "1.2"]
[White "Sonntag, Jan Hendric"]
[Black "Grossmann, Piet"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "1141"]
[BlackElo "1752"]
[PlyCount "32"]
[EventDate "2019.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 Nf6 3. d3 b6 4. e4 d6 5. Be2 Bb7 6. Be3 Be7 7. f4 c5 8. Nf3 Nc6 9. Qd2 a6 10. b3 Ng4 11. g3 Nxe3 12. Qxe3 Qc7 13. 0-0 Bf6 14. Rac1 0-0 15. Nd2 Bd4 16. Qxd4 Nxd4 0-1

[Event "Mecklenburg VP LL2 West 1718"]
[Site "Mecklenburg VP"]
[Date "2018.03.18"]
[Round "7.5"]
[White "Sonntag, Jan Hendric"]
[Black "Segebarth, Bernd"]
[Result "0-1"]
[ECO "A13"]
[BlackElo "1918"]
[PlyCount "46"]
[EventDate "2017.10.08"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Wismar ASV Gruen-Weiss II"]
[BlackTeam "Schwerin SF IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. g3 f5 3. d3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 Nf6 6. Bg2 0-0 7. Nc3 Nc6 8. Nf3 d6 9. h4 Ng4 10. h5 Bd7 11. Nh2 Nxh2 12. Rxh2 Rb8 13. 0-0-0 a6 14. f3 b5 15. Rh4 bxc4 16. dxc4 Ne5 17. f4 Nxc4 18. Qd3 Nxb2 19. Qd4 Nxd1 20. Nxd1 Qf6 21. Qxf6 Rxf6 22. g4 fxg4 23. Rxg4 e5 0-1

[Event "Mecklenburg VP-ch U12"]
[Site "Malchow"]
[Date "2018.02.07"]
[Round "7.6"]
[White "Janssen, Joris Frederik"]
[Black "Sonntag, Jan Hendric"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1156"]
[BlackElo "1055"]
[PlyCount "122"]
[EventDate "2018.02.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nf6 3. f3 Nc6 4. Bd2 Bf5 5. Ne2 e6 6. a3 Bd6 7. Nbc3 0-0 8. Nf4 Bxf4 9. exf4 Nxd4 10. Bd3 Bxd3 11. cxd3 Re8 12. 0-0 Qd6 13. Rc1 Rac8 14. Qe1 c5 15. Qh4 b5 16. Be1 b4 17. Nb1 Ne2+ 18. Kh1 Nxc1 19. Bg3 Ne2 20. Bf2 Qxf4 21. Qxf4 Nxf4 22. Nd2 Nxd3 23. Bg3 Nxb2 24. a4 c4 25. h4 c3 26. Nb3 c2 27. Bf4 Nd3 28. Be3 Rc3 29. Nc1 b3 30. Ne2 b2 31. Nxc3 c1Q 32. Bxc1 bxc1Q 33. Rxc1 Nxc1 34. Nb5 Rd8 35. Nxa7 d4 36. Nc6 Rd6 37. Ne7+ Kf8 38. Nc8 Rd8 39. Nb6 d3 40. Nc4 d2 41. Ne3 d1Q+ 42. Nxd1 Rxd1+ 43. Kh2 Nd3 44. a5 Ra1 45. a6 Nh5 46. a7 Nf2 47. a8Q+ Rxa8 48. Kg1 Nd3 49. Kh1 Ra1+ 50. Kh2 Nf2 51. g4 Nxg4+ 52. fxg4 Nf4 53. Kg3 Rf1 54. Kh2 e5 55. Kg3 e4 56. g5 e3 57. Kg4 g6 58. h5 e2 59. hxg6 fxg6 60. Kg3 e1Q+ 61. Kg4 h5+ 0-1

[Event "Mecklenburg VP-ch U12"]
[Site "Malchow"]
[Date "2018.02.07"]
[Round "3.9"]
[White "Kuniss, Crispin"]
[Black "Sonntag, Jan Hendric"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "824"]
[BlackElo "1055"]
[PlyCount "63"]
[EventDate "2018.02.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. Bf4 Bf5 4. e3 e6 5. c4 Bb4+ 6. Nc3 Nf6 7. Be2 0-0 8. Bd3 Bg6 9. Bxg6 fxg6 10. 0-0 Bd6 11. Ng5 Bxf4 12. Nxe6 Bxh2+ 13. Kxh2 Qd6+ 14. Nf4 g5 15. Nb5 Qd7 16. cxd5 gxf4 17. dxc6 bxc6 18. Qb3+ Kh8 19. Nc3 Ng4+ 20. Kg1 Qe7 21. f3 Nxe3 22. Rfe1 Qg5 23. Re2 h5 24. Ne4 Qg6 25. Rc1 h4 26. Rxe3 fxe3 27. Qxe3 h3 28. Kf2 Qxg2+ 29. Ke1 Rxf3 30. Nf2 Rxe3+ 31. Kd2 Qxf2+ 32. Kd1 0-1

[Event "Mecklenburg VP-ch U12"]
[Site "Malchow"]
[Date "2018.02.07"]
[Round "4.7"]
[White "Lange, Oskar"]
[Black "Sonntag, Jan Hendric"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1166"]
[BlackElo "1055"]
[PlyCount "33"]
[EventDate "2018.02.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. 0-0 d6 6. Nc3 Bg4 7. h3 Bh5 8. Re1 Nf6 9. Be3 Bb6 10. Bxb6 axb6 11. Qe2 0-0 12. Qe3 Nb4 13. Rac1 c5 14. a3 Nc6 15. Nd5 Nd4 16. Nxd4 exd4 17. Qf4 1/2-1/2

[Event "Mecklenburg VP-ch U12"]
[Site "Malchow"]
[Date "2018.02.07"]
[Round "1.4"]
[White "Pham, Anh Tuan"]
[Black "Sonntag, Jan Hendric"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "1187"]
[BlackElo "1055"]
[PlyCount "29"]
[EventDate "2018.02.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 f6 4. d5 Nb4 5. a3 Na6 6. Nc3 c6 7. dxc6 bxc6 8. Bd3 Nc7 9. Nxe5 fxe5 10. Qh5+ g6 11. Qxe5+ Be7 12. Qxh8 Kf7 13. Qxh7+ Kf6 14. Bf4 Ne6 15. e5# 1-0

[Event "Mecklenburg VP-ch U12"]
[Site "Malchow"]
[Date "2018.02.07"]
[Round "6.6"]
[White "Sonntag, Jan Hendric"]
[Black "Boerger, Dan"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "1055"]
[BlackElo "1088"]
[PlyCount "39"]
[EventDate "2018.02.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 Nf6 6. Be3 e5 7. Nf3 Be7 8. Be2 Be6 9. 0-0 Nbd7 10. h3 Qc7 11. Qd2 0-0 12. Nd5 Nxd5 13. exd5 Bf5 14. c4 e4 15. Nd4 Bg6 16. Rac1 Rab8 17. Rc3 Bf6 18. Rcc1 Rfc8 19. Bg4 Qd8 20. Qb4 1/2-1/2

[Event "Mecklenburg VP-ch U12"]
[Site "Malchow"]
[Date "2018.02.07"]
[Round "5.8"]
[White "Sonntag, Jan Hendric"]
[Black "Helber, Felix"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1055"]
[BlackElo "971"]
[PlyCount "201"]
[EventDate "2018.02.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Bg5 h6 6. Bh4 d6 7. h3 Qe7 8. Nc3 Be6 9. Bb3 Bxb3 10. axb3 Qe6 11. Bxf6 Qxf6 12. Nd5 Qd8 13. 0-0 Nd4 14. c3 Ne6 15. d4 Bb6 16. dxe5 dxe5 17. Nxe5 c6 18. Qf3 0-0 19. Nxb6 Qxb6 20. Nd7 Ng5 21. Qd3 Rad8 22. Nxb6 Rxd3 23. Rxa7 Nxe4 24. Rxb7 Nc5 25. Rc7 Nxb3 26. Rxc6 Nd2 27. Rd1 Nf3+ 28. gxf3 Rxd1+ 29. Kg2 Rd2 30. Nc4 Rd3 31. Na5 Kh7 32. Rb6 h5 33. c4 Re8 34. h4 Re1 35. c5 Rdd1 36. f4 Rg1+ 37. Kf3 Rd3+ 38. Ke4 Rd2 39. Nc4 Rxf2 40. c6 Re1+ 41. Ne3 f5+ 42. Kd4 Rd2+ 43. Kc5 Rc1+ 44. Nc4 Rd8 45. c7 Re8 46. Rb8 Rce1 47. c8Q Rxc8+ 48. Rxc8 Rf1 49. b4 Rxf4 50. b5 Rxh4 51. b6 Rh3 52. b7 Rb3 53. b8Q Rxb8 54. Rxb8 h4 55. Rb3 Kh6 56. Nd6 f4 57. Kd5 g5 58. Ke4 Kh5 59. Kf5 g4 60. Kxf4 h3 61. Kg3 Kg5 62. Ne4+ Kh5 63. Nf2 h2 64. Kxh2 Kh4 65. Nxg4 Kxg4 66. Kg2 Kf4 67. Kf2 Ke4 68. Rh3 Kd4 69. Ke2 Kc4 70. Kd2 Kb4 71. Kc2 Ka4 72. Kb2 Kb4 73. Rh4+ Kc5 74. Kc3 Kd5 75. Ra4 Ke5 76. Kd3 Kf5 77. Ke3 Kg5 78. Kf3 Kh5 79. Kg3 Kg5 80. Ra5+ Kf6 81. Kf4 Ke6 82. Rh5 Kd6 83. Ke4 Kc6 84. Kd4 Kb6 85. Kc4 Ka6 86. Kb4 Kb6 87. Rh6+ Kc7 88. Kc5 Kd7 89. Ra6 Ke7 90. Kd5 Kf7 91. Ke5 Kg7 92. Kf5 Kh7 93. Kg5 Kg7 94. Ra7+ Kf8 95. Kf6 Ke8 96. Rh7 Kd8 97. Ke6 Kc8 98. Kd6 Kb8 99. Kc6 Ka8 100. Kb6 Kb8 101. Rh8# 1-0

[Event "Mecklenburg VP-ch U12"]
[Site "Malchow"]
[Date "2018.02.07"]
[Round "2.7"]
[White "Sonntag, Jan Hendric"]
[Black "Wellssow, Keoki"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1055"]
[BlackElo "1470"]
[PlyCount "38"]
[EventDate "2018.02.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 c5 5. c3 Bg4 6. Be2 Nc6 7. 0-0 Qb6 8. Be3 Qxb2 9. Nbd2 Qxc3 10. Nb3 Bxf3 11. Bxf3 c4 12. Re1 Be7 13. Nc5 Nf6 14. Nxb7 0-0 15. Bd2 Qxd4 16. Bg5 Rfe8 17. Qa4 Nb4 18. Bxf6 Qxf6 19. Re2 Qxa1+ 0-1

[Event "Mecklenburg VP-ch Youth"]
[Site "Malchow"]
[Date "2017.02.14"]
[Round "6.8"]
[White "Decker, Nils1111"]
[Black "Sonntag, Jan Hendric"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "895"]
[BlackElo "1092"]
[PlyCount "23"]
[EventDate "2017.02.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 Nf6 5. 0-0 0-0 6. d3 h6 7. Ne1 d6 8. h3 Be6 9. Qf3 Nd4 10. Qg3 Bb4 11. Bxh6 Bxc3 12. Qxg7# 1-0

[Event "Mecklenburg VP-ch Youth"]
[Site "Malchow"]
[Date "2017.02.14"]
[Round "2.2"]
[White "Pusch, Anton"]
[Black "Sonntag, Jan Hendric"]
[Result "1/2-1/2"]
[ECO "D20"]
[WhiteElo "1275"]
[BlackElo "1092"]
[PlyCount "12"]
[EventDate "2017.02.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 Nc6 4. Nf3 Bg4 5. Be3 Qd6 6. Bxc4 Qb4+ 1/2-1/2

[Event "Mecklenburg VP-ch Youth"]
[Site "Malchow"]
[Date "2017.02.14"]
[Round "1.8"]
[White "Sonntag, Jan Hendric"]
[Black "Bohndorf, Jonas"]
[Result "1-0"]
[ECO "C57"]
[WhiteElo "1092"]
[BlackElo "729"]
[PlyCount "37"]
[EventDate "2017.02.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bb4 5. Nxf7 Qe7 6. Nxh8 d6 7. Nc3 Bxc3 8. dxc3 Bg4 9. Qd3 0-0-0 10. Nf7 a6 11. Nxd8 Kxd8 12. Bg5 h6 13. Bxf6 Qxf6 14. f3 Bh5 15. 0-0-0 Qg5+ 16. Qd2 Qg6 17. g4 Bxg4 18. fxg4 Qxg4 19. Rhg1 1-0

[Event "Mecklenburg VP-ch Youth"]
[Site "Malchow"]
[Date "2017.02.14"]
[Round "7.5"]
[White "Sonntag, Jan Hendric"]
[Black "Brand, Hannes"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1092"]
[BlackElo "1184"]
[PlyCount "125"]
[EventDate "2017.02.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Bg5 d6 6. h3 0-0 7. 0-0 h6 8. Bh4 Be6 9. Bb3 Nd4 10. Nc3 Qd7 11. Bxf6 gxf6 12. Bd5 c6 13. Bb3 Kh8 14. Kh2 Rg8 15. Nh4 Rg7 16. Qd2 Rag8 17. Nd1 d5 18. Rg1 Bxh3 19. Ne3 Nxb3 20. cxb3 Bxe3 21. Qxe3 Be6 22. Qxa7 d4 23. Qa5 Rg5 24. Qd2 Rh5 25. g3 Qd6 26. Rg2 Bd7 27. Rag1 Qe6 28. Kh1 Rg4 29. Re1 f5 30. exf5 Qf6 31. Rh2 Bxf5 32. Nxf5 Qxf5 33. Rxh5 Qxh5+ 34. Kg2 f5 35. Rh1 Qg5 36. Qxg5 Rxg5 37. Rxh6+ Kg7 38. Rh3 f4 39. Kf1 fxg3 40. Rxg3 Rxg3 41. fxg3 Kg6 42. a4 Kg5 43. Kf2 Kg4 44. b4 Kf5 45. Kf3 Kg5 46. Ke4 Kg4 47. Kxe5 Kxg3 48. Kxd4 Kf4 49. Kc4 Ke5 50. d4+ Kd6 51. b5 Kc7 52. bxc6 bxc6 53. b4 Kb7 54. b5 c5 55. Kxc5 Ka8 56. d5 Kb8 57. d6 Kc8 58. Kc6 Kb8 59. d7 Ka7 60. b6+ Ka6 61. d8Q Ka5 62. b7+ Ka6 63. Qa8# 1-0

[Event "Mecklenburg VP-ch Youth"]
[Site "Malchow"]
[Date "2017.02.14"]
[Round "3.4"]
[White "Sonntag, Jan Hendric"]
[Black "Kruse, Johannes"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "1092"]
[BlackElo "1013"]
[PlyCount "39"]
[EventDate "2017.02.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 e6 4. Bg5 f6 5. Bf4 cxd4 6. Nxd4 e5 7. Nxc6 bxc6 8. Bd2 Bc5 9. Bc4 d5 10. exd5 cxd5 11. Bb3 Ne7 12. 0-0 0-0 13. a3 Kh8 14. Bb4 Bxb4 15. axb4 Be6 16. Nc3 Qd7 17. Ra5 Rad8 18. Bxd5 Bxd5 19. Nxd5 Nxd5 20. Rxd5 1/2-1/2

[Event "Mecklenburg VP-ch Youth"]
[Site "Malchow"]
[Date "2017.02.14"]
[Round "5.5"]
[White "Sonntag, Jan Hendric"]
[Black "Stadach, Bo Uwe"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1092"]
[BlackElo "949"]
[PlyCount "62"]
[EventDate "2017.02.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Bg5 d6 6. h3 Be6 7. Bb3 0-0 8. 0-0 h6 9. Bh4 d5 10. exd5 Bxd5 11. Bxd5 Qxd5 12. Bxf6 gxf6 13. Nc3 Qe6 14. Nb5 Qd7 15. Qd2 Kh7 16. Qc3 Bb4 17. Qc4 a6 18. Nc3 b5 19. Qh4 Be7 20. Rfe1 Rg8 21. Qh5 Rg7 22. Re4 Qe6 23. a3 Rag8 24. g3 Bc5 25. Kh1 f5 26. Rh4 Nd4 27. Nd5 Rg6 28. Nxc7 Qc6 29. Kh2 Nxf3+ 30. Kh1 Nxh4+ 31. Kg1 Qg2# 0-1

[Event "Mecklenburg VP-ch Youth"]
[Site "Malchow"]
[Date "2017.02.14"]
[Round "4.4"]
[White "Wellssow, Keoki"]
[Black "Sonntag, Jan Hendric"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "1057"]
[BlackElo "1092"]
[PlyCount "118"]
[EventDate "2017.02.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 Nf6 5. d3 h6 6. Qe2 0-0 7. Be3 Bb6 8. Bxc6 dxc6 9. 0-0-0 Bg4 10. h3 Bh5 11. g4 Bg6 12. d4 exd4 13. Nxd4 Bxd4 14. Bxd4 Qe7 15. e5 Nd5 16. Nxd5 cxd5 17. f3 Qd7 18. Qe3 Qa4 19. Qb3 Qc6 20. c3 Qe8 21. Qxb7 Qa4 22. Qb3 Qa6 23. Rh2 Qe6 24. Qb7 Qd7 25. b3 a5 26. Bb6 Rfc8 27. Rxd5 Qe7 28. Rc5 Qf8 29. Ba7 c6 30. Rxa5 c5 31. Bxc5 Rxc5 32. Rxc5 Qxc5 33. Qxa8+ Kh7 34. Kb2 Qxe5 35. Rd2 Qe1 36. Rd8 Qe2+ 37. Ka3 Qe7+ 38. Ka4 Bc2 39. Rh8+ Kg6 40. Qc6+ f6 41. Qe8+ Qxe8+ 42. Rxe8 Bd1 43. f4 Bf3 44. c4 Bc6+ 45. Ka5 Bxe8 46. c5 Kf7 47. Kb6 Ke7 48. c6 Kd8 49. c7+ Kc8 50. a4 Bxa4 51. bxa4 f5 52. gxf5 h5 53. a5 h4 54. Kc6 g6 55. a6 gxf5 56. Kb6 Kd7 57. a7 Kc8 58. a8Q+ Kd7 59. Qc6+ Ke7 1-0

