[Event "Hannover-ch U18"]
[Site "Lehrte"]
[Date "2006.10.17"]
[Round "7"]
[White "Koeritz, Jan Hendrik"]
[Black "Schrader, Dennis"]
[Result "0-1"]
[ECO "E01"]
[WhiteElo "1567"]
[BlackElo "1407"]
[PlyCount "34"]
[EventDate "2006.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. g3 c5 4. c4 Nf6 5. Nc3 cxd4 6. Nxd4 Bb4 7. Qa4+ Nc6 8. Bd2 Bxc3 9. Bxc3 Bd7 10. cxd5 Nxd5 11. Qc2 Rc8 12. Nxc6 Rxc6 13. Bg2 0-0 14. Bxd5 exd5 15. Qd3 Bc8 16. Qd4 Qf6 17. Qxd5 Rxc3 0-1

[Event "Hannover-ch U18"]
[Site "Lehrte"]
[Date "2006.10.16"]
[Round "6"]
[White "Iburg, Manuel"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1197"]
[BlackElo "1567"]
[PlyCount "65"]
[EventDate "2006.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e6 3. Qe2 d6 4. Nf3 Nc6 5. d3 a6 6. a3 Qc7 7. Bd2 Nf6 8. 0-0 Be7 9. b4 cxb4 10. axb4 Bd7 11. b5 Nb8 12. e5 dxe5 13. Nxe5 0-0 14. Bf4 Bd6 15. g3 Nd5 16. d4 Nxf4 17. gxf4 Bxe5 18. fxe5 Rc8 19. Nd2 Qb6 20. c3 a5 21. Ra4 Qd8 22. Ne4 b6 23. Qf3 Qe7 24. Nd6 Rf8 25. Qxa8 Nc6 26. Qa6 Qg5+ 27. Kh1 Qg4 28. f3 Qf4 29. Qxb6 Nxe5 30. dxe5 Qxe5 31. Rxa5 Qxc3 32. Ra7 Bxb5 33. Bxb5 1-0

[Event "Hannover-ch U18"]
[Site "Lehrte"]
[Date "2006.10.16"]
[Round "5"]
[White "Nuelle, Sascha"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "1436"]
[BlackElo "1567"]
[PlyCount "67"]
[EventDate "2006.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. Be3 Nc6 9. Kh1 Qc7 10. f3 0-0 11. Qe1 Rd8 12. Qg3 Nxd4 13. Bxd4 e5 14. Be3 Be6 15. Rfd1 Rac8 16. f4 exf4 17. Bxf4 Qb6 18. Rab1 Bf8 19. Bg5 Be7 20. Rf1 Kh8 21. Qh4 Qd4 22. Bd3 d5 23. Ne2 Qe5 24. exd5 h6 25. dxe6 Qxg5 26. Qxg5 hxg5 27. exf7 Rf8 28. Bg6 Ng4 29. Rbe1 Ne5 30. Nf4 Bf6 31. Rxe5 gxf4 32. Re8 f3 33. Rxf3 Be7 34. Rh3+ 1-0

[Event "Hannover-ch U18"]
[Site "Lehrte"]
[Date "2006.10.15"]
[Round "3"]
[White "Gerschmann, Anastasija"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1265"]
[BlackElo "1567"]
[PlyCount "83"]
[EventDate "2006.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 a6 4. Bc4 e6 5. 0-0 Nf6 6. d3 Be7 7. Re1 Nfd7 8. h3 Nc6 9. d4 cxd4 10. Nxd4 Qc7 11. Be3 b5 12. Bd3 Nc5 13. Nxc6 Qxc6 14. Qg4 Bf6 15. Rad1 Bb7 16. a3 0-0 17. Rd2 Nd7 18. Be2 Ne5 19. Qg3 Rad8 20. Red1 d5 21. exd5 exd5 22. Nxd5 Ng6 23. Bf3 Rxd5 24. Bxd5 Qc8 25. Bxb7 Qxb7 26. Bd4 Bh4 27. Qg4 f5 28. Qf3 Qxf3 29. gxf3 Bg5 30. Be3 Bxe3 31. fxe3 Ne5 32. Kf2 Nc4 33. Rd8 Rxd8 34. Rxd8+ Kf7 35. b3 Nxa3 36. c3 a5 37. Ra8 Nb1 38. c4 bxc4 39. bxc4 Na3 40. c5 Nc4 41. c6 Nb6 42. c7 1-0

[Event "Hannover-ch U18"]
[Site "Lehrte"]
[Date "2006.10.15"]
[Round "4"]
[White "Koeritz, Jan Hendrik"]
[Black "Boeer, Svenja"]
[Result "1-0"]
[ECO "B54"]
[WhiteElo "1567"]
[PlyCount "55"]
[EventDate "2006.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 e6 5. c4 Nf6 6. Nc3 Be7 7. Be2 0-0 8. Be3 e5 9. Nb3 Bg4 10. Bxg4 Nc6 11. Nd2 Nb4 12. 0-0 d5 13. cxd5 Nfxd5 14. exd5 Nxd5 15. Nxd5 Qxd5 16. Nf3 Qxd1 17. Rfxd1 b6 18. Nxe5 f6 19. Be6+ Rf7 20. Nxf7 g5 21. Nxg5+ Kg7 22. Rd7 Kg6 23. Rxe7 fxg5 24. Bd4 Rd8 25. Bc3 a5 26. g4 h5 27. Bf5+ Kh6 28. Bg7# 1-0

[Event "Hannover-ch U18"]
[Site "Lehrte"]
[Date "2006.10.14"]
[Round "2"]
[White "Koeritz, Jan Hendrik"]
[Black "Juenemann, Marcel"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1567"]
[BlackElo "1702"]
[PlyCount "50"]
[EventDate "2006.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nb3 Be6 8. Nd5 Nxd5 9. exd5 Bf5 10. Bd3 Bg6 11. Qe2 Be7 12. 0-0 Nd7 13. Be3 Qc7 14. Rac1 Rc8 15. Bxg6 hxg6 16. Rfd1 f5 17. Rd3 f4 18. Bd2 Nf6 19. Rc3 Qd7 20. Qd3 Kf7 21. Rxc8 Qxc8 22. Bc3 e4 23. Qe2 f3 24. gxf3 Qh3 25. Qe3 Rh4 0-1

[Event "Hannover-ch U18"]
[Site "Lehrte"]
[Date "2006.10.14"]
[Round "1"]
[White "Niklaus, Alexander"]
[Black "Koeritz, Jan Hendrik"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1567"]
[PlyCount "98"]
[EventDate "2006.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e6 3. Nf3 Nc6 4. 0-0 a6 5. d3 Be7 6. Nc3 d6 7. a3 Nf6 8. Bd2 0-0 9. Na4 b5 10. Bxb5 axb5 11. Nc3 b4 12. axb4 Rxa1 13. Qxa1 Nxb4 14. Qd1 Ba6 15. Re1 Nd7 16. Na4 Qa5 17. c3 Nxd3 18. c4 Qc7 19. Re3 N7e5 20. Nxe5 Nxe5 21. Bc3 Nxc4 22. Rg3 e5 23. Qg4 g6 24. b3 Qb7 25. Qd1 Nb6 26. Nb2 Qxe4 27. Re3 Qc6 28. Rg3 Nd5 29. Bd2 Nf6 30. Bg5 Bb7 31. Nc4 Qd5 32. Qb1 Rb8 33. Ne3 Qe4 34. Qd1 d5 35. Rh3 d4 36. f3 Qc6 37. Nc4 Bc8 38. Rh4 Qd5 39. Qe1 Rxb3 40. Nxe5 Bf5 41. Bc1 Nh5 42. Nxg6 Bxh4 43. Qe8+ Kg7 44. Qf8+ Kf6 45. Nf4 Nxf4 46. Qh6+ Ng6 47. g3 Qxf3 48. gxh4 Qg4+ 49. Kh1 Be4# 0-1

[Event "GER-chT U16"]
[Site "Verden"]
[Date "2003.07.08"]
[Round "7.3"]
[White "Juenemann, Marcel"]
[Black "Koeritz, Jan Hendrik"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1376"]
[BlackElo "1269"]
[PlyCount "66"]
[EventDate "2003.07.05"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 0-0 7. Bf4 Re8 8. Qd2 a6 9. 0-0-0 c5 10. Nb3 b5 11. f3 b4 12. Nd5 Nxd5 13. Qxd5 Qc7 14. Nxc5 Qxc5 15. Qxa8 Be6 16. Bxa6 b3 17. axb3 Bxb3 18. Bd3 Rc8 19. Rd2 Bf6 20. Qb7 Be6 21. Qb5 Qa7 22. Rdd1 Qa1+ 23. Kd2 Qa7 24. Bxd6 Qf2+ 25. Kc1 Qa7 26. Ba3 Bd7 27. Qb4 Nc6 28. Qc5 Qb7 29. Ba6 Qxa6 30. Rxd7 Ne5 31. Qa7 Qe2 32. Rc7 Rd8 33. Qg1 h6 1/2-1/2

[Event "GER-chT U16"]
[Site "Verden"]
[Date "2003.07.07"]
[Round "5.2"]
[White "Lubbe, Nikolas"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2045"]
[BlackElo "1269"]
[PlyCount "43"]
[EventDate "2003.07.05"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. Bg5 Be7 5. Nc3 d6 6. e3 Nbd7 7. Bd3 Qc7 8. 0-0 a6 9. Qc2 b6 10. Rfe1 Bb7 11. Nd2 h6 12. Bh4 d5 13. cxd5 exd5 14. dxc5 Nxc5 15. e4 0-0 16. exd5 Bxd5 17. Bxf6 Nxd3 18. Qxd3 Bxf6 19. Nxd5 Rad8 20. Nxf6+ gxf6 21. Qe3 Qd6 22. Ne4 1-0

[Event "GER-chT U16"]
[Site "Verden"]
[Date "2003.07.06"]
[Round "4.2"]
[White "Koeritz, Jan Hendrik"]
[Black "Abel, Dennes"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1269"]
[BlackElo "1991"]
[PlyCount "38"]
[EventDate "2003.07.05"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c4 e5 4. Nc3 d6 5. d3 g6 6. g3 Bg7 7. Bg2 Nge7 8. 0-0 0-0 9. Nh4 Nd4 10. f4 f5 11. fxe5 Bxe5 12. Nf3 Nxf3+ 13. Rxf3 Nc6 14. Bf4 Bd4+ 15. Kh1 fxe4 16. Nxe4 Bg4 17. Bg5 Bxf3 18. Bxf3 Qc7 19. Nd2 Bxb2 0-1

[Event "GER-chT U16"]
[Site "Verden"]
[Date "2003.07.06"]
[Round "3.3"]
[White "Koeritz, Jan Hendrik"]
[Black "Ahlers, Hendrik"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1269"]
[BlackElo "985"]
[PlyCount "72"]
[EventDate "2003.07.05"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bg5 a6 6. Ba4 b5 7. Bb3 d6 8. a3 Bg4 9. Bd5 Bd7 10. Nc3 0-0 11. h4 h6 12. Bd2 Rb8 13. Bxc6 Bxc6 14. Qe2 d5 15. exd5 Nxd5 16. Nxd5 Bxd5 17. Be3 Bxe3 18. Qxe3 Qf6 19. 0-0-0 Bxf3 20. Qxf3 Qxf3 21. gxf3 Rbd8 22. Rde1 Rfe8 23. Re4 Rd4 24. Kd2 f6 25. Rxd4 exd4 26. Re1 Rxe1 27. Kxe1 Kf7 28. Kd2 Ke6 29. c3 dxc3+ 30. bxc3 Kd5 31. Ke3 Ke5 32. f4+ Kf5 33. Kf3 h5 34. d4 c6 35. Ke3 Kg4 36. Ke4 Kxh4 0-1

[Event "GER-chT U16"]
[Site "Verden"]
[Date "2003.07.05"]
[Round "1.2"]
[White "Heese, Dennis"]
[Black "Koeritz, Jan Hendrik"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "1448"]
[BlackElo "1269"]
[PlyCount "111"]
[EventDate "2003.07.05"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 e6 3. Nf3 c5 4. e3 d5 5. Nc3 cxd4 6. exd4 Bb4 7. Bd2 Nc6 8. a3 Bxc3 9. bxc3 Ne4 10. c5 Qf6 11. Bb5 Bd7 12. Bxc6 Bxc6 13. 0-0 0-0 14. a4 Rfe8 15. Ne5 Rac8 16. f3 Nxd2 17. Qxd2 Re7 18. Rfe1 Rce8 19. Ng4 Qf5 20. Re5 f6 21. Rxf5 exf5 22. Nf2 Re2 23. Qc1 f4 24. Nd3 g5 25. c4 a5 26. Qc3 R8e3 27. cxd5 Bxd5 28. Qxa5 Bc4 29. Ne1 Kf7 30. Qb4 Ba6 31. d5 Re6 32. d6 Rd2 33. Qe4 Rxe4 34. fxe4 Rd4 35. Nf3 Rd3 36. Re1 g4 37. e5 Bc4 38. exf6 Kxf6 39. Ne5 Rd4 40. d7 Be6 41. c6 bxc6 42. Nxc6 Rxd7 43. a5 Rd6 44. Nb4 Bc8 45. Rc1 Bb7 46. g3 f3 47. Ra1 Rd2 48. a6 Ba8 49. a7 Rd6 50. Na6 Rd7 51. Nc5 Rc7 52. Nd3 Kf5 53. Ra5+ Ke4 54. Nf2+ Ke3 55. Nxg4+ Ke2 56. Ra2+ 1/2-1/2

[Event "GER-chT U16"]
[Site "Verden"]
[Date "2003.07.05"]
[Round "2.3"]
[White "Maiwald, Claas"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1195"]
[BlackElo "1269"]
[PlyCount "67"]
[EventDate "2003.07.05"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. d3 Nf6 5. Nc3 a6 6. Ng5 0-0 7. 0-0 c5 8. Nf3 Nc6 9. Nd5 Nxd5 10. Bxd5 Re8 11. c3 Bg4 12. h3 Bh5 13. Bd2 Qc7 14. Bg5 Bxg5 15. g4 Bxg4 16. hxg4 Bf4 17. Kg2 Qd7 18. Nh2 Ne7 19. Bb3 Ng6 20. c4 Qe7 21. Nf3 Qe6 22. Kh3 Qf6 23. Rh1 Bg5 24. Nxg5 Qxg5 25. f3 Re6 26. Kg3 Nf4 27. Qc2 Rae8 28. Ba4 R8e7 29. Qb3 Rf6 30. Raf1 Ne2+ 31. Kg2 Nd4 32. Qb6 Qd2+ 33. Rf2 Qxd3 34. Qd8+ 1-0

[Event "Niedersachsen-chT U16"]
[Site "Verden"]
[Date "2002.06.18"]
[Round "7.3"]
[White "Schappert, Philipp"]
[Black "Koeritz, Jan Hendrik"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1179"]
[BlackElo "1114"]
[PlyCount "46"]
[EventDate "2002.06.15"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. Nf3 Bg7 4. Bd3 d6 5. 0-0 0-0 6. b3 Nc6 7. a3 a6 8. Bb2 e6 9. Nbd2 Ne7 10. c4 Nd7 11. Rb1 e5 12. d5 f5 13. e4 f4 14. Rc1 h6 15. Re1 g5 16. Kf1 g4 17. Ng1 g3 18. hxg3 fxg3 19. f3 Ng6 20. Nh3 Nc5 21. Bc2 Bxh3 22. gxh3 Qh4 23. Qe2 Nf4 0-1

[Event "Niedersachsen-chT U16"]
[Site "Verden"]
[Date "2002.06.17"]
[Round "5.2"]
[White "Koeritz, Jan Hendrik"]
[Black "Sommer, Matthias"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "1114"]
[BlackElo "1365"]
[PlyCount "87"]
[EventDate "2002.06.15"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. Nf3 h6 6. a3 c5 7. Be3 Qa5 8. Be2 Nc6 9. 0-0 cxd4 10. Nxd4 Nge7 11. Ndb5 Nc8 12. Re1 a6 13. Nd4 N8e7 14. Nb3 Qc7 15. Nc5 h5 16. Qd2 Ng6 17. N5a4 Ngxe5 18. Bf4 Bd6 19. Qd1 Kd7 20. Be3 Ng4 21. Nb6+ Ke7 22. Nxa8 Bxh2+ 23. Kh1 Rxa8 24. Nxd5+ exd5 25. Bb6 Qxb6 26. Bxg4+ Kf6 27. Bxf5 Qxf2 28. Kxh2 Qh4+ 29. Kg1 Kxf5 30. Qxd5+ Kg6 31. Re4 Qd8 32. Qb3 b5 33. Rf1 f6 34. Rf3 Kh7 35. Rg3 f5 36. Qf7 Qf6 37. Qxh5+ Kg8 38. Rf4 Rf8 39. Rg6 Qxb2 40. Rxf5 Ne7 41. Rxf8+ Kxf8 42. Rxa6 Qd4+ 43. Kh2 Qe4 44. Rb6 1/2-1/2

[Event "Niedersachsen-chT U16"]
[Site "Verden"]
[Date "2002.06.16"]
[Round "3.2"]
[White "Koeritz, Jan Hendrik"]
[Black "Abel, Dennes"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1114"]
[BlackElo "1836"]
[PlyCount "88"]
[EventDate "2002.06.15"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. Nf3 e5 4. Nc3 d6 5. d3 g6 6. g3 Bg7 7. Bg2 Nge7 8. Qb3 0-0 9. Bg5 f6 10. Be3 Nd4 11. Qd1 Nec6 12. Bxd4 Nxd4 13. Nxd4 cxd4 14. Nd5 Be6 15. Qb3 Bxd5 16. cxd5 Qa5+ 17. Ke2 Rac8 18. Rhc1 Bh6 19. Rxc8 Rxc8 20. Bh3 Rc7 21. Be6+ Kf8 22. Qd1 Rc5 23. Qb3 Qc7 24. Qa3 a6 25. b4 Rc2+ 26. Kf3 Rc3 27. Qa4 Rxd3+ 28. Kg2 Rc3 29. b5 Rc4 30. Qa3 a5 31. Rb1 b6 32. Qf3 Kg7 33. h4 Rc1 34. Rxc1 Qxc1 35. Qg4 Qc7 36. h5 Qe7 37. f4 exf4 38. gxf4 Qc7 39. hxg6 hxg6 40. Bf5 Qc2+ 41. Kh3 Qc3+ 42. Kh4 Qe1+ 43. Kh3 Qf1+ 44. Kh4 Qxf4 0-1

[Event "Niedersachsen-chT U16"]
[Site "Verden"]
[Date "2002.06.16"]
[Round "4.3"]
[White "Koeritz, Jan Hendrik"]
[Black "Laux, Benjamin"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1114"]
[BlackElo "1277"]
[PlyCount "36"]
[EventDate "2002.06.15"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bf4 Bg4 6. f3 Bh5 7. Bd2 c6 8. Qe2 e6 9. Nb5 Qxb5 10. Qxb5 cxb5 11. Bxb5+ Nbd7 12. Ne2 Bd6 13. 0-0 0-0 14. Bf4 Bxf4 15. Nxf4 Nb6 16. Rfe1 a6 17. Bd3 Rfd8 18. Bxh7+ Kxh7 0-1

[Event "Niedersachsen-chT U16"]
[Site "Verden"]
[Date "2002.06.15"]
[Round "2.2"]
[White "Kahl, Jan Malte"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "910"]
[BlackElo "1114"]
[PlyCount "37"]
[EventDate "2002.06.15"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. Bg5 0-0 5. e4 h6 6. Bf4 d6 7. Bc4 Bg4 8. h3 Bd7 9. Qd2 Kh7 10. 0-0 a6 11. e5 dxe5 12. Nxe5 Be6 13. Bd3 Qxd4 14. Bxg6+ fxg6 15. Qxd4 Nh5 16. Bh2 Rf5 17. Qe4 c6 18. g4 Rg5 19. Nf3 1-0

[Event "Niedersachsen-chT U16"]
[Site "Verden"]
[Date "2002.06.15"]
[Round "1.3"]
[White "Koeritz, Jan Hendrik"]
[Black "Maiwald, Claas"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1114"]
[PlyCount "80"]
[EventDate "2002.06.15"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 d6 6. Bg5 0-0 7. Bxf6 Qxf6 8. Nd5 Qd8 9. Qd2 a6 10. a4 Bg4 11. h3 Bxf3 12. gxf3 Nd4 13. 0-0-0 c6 14. Qe3 Nb3+ 15. Bxb3 Bxe3+ 16. Nxe3 b5 17. Rdg1 Qf6 18. Rg3 bxa4 19. Bxa4 c5 20. Nd5 Qh6+ 21. Kd1 Rab8 22. Ne7+ Kh8 23. Nf5 Qf6 24. Bb3 g6 25. Ne3 a5 26. Nd5 Qe6 27. Nc3 Qe7 28. h4 a4 29. Nxa4 h6 30. f4 exf4 31. Rf3 Qe5 32. Kc1 Kg7 33. Rg1 Ra8 34. Rg4 f5 35. Rgxf4 h5 36. Kd2 fxe4 37. Rxe4 Qxe4 38. dxe4 Rxf3 39. Nb6 Raf8 40. Nd7 Rxf2+ 0-1

[Event "Niedersachsen-chT U14"]
[Site "Rotenburg"]
[Date "2000.06.19"]
[Round "7.4"]
[White "Giersch, Tronje Carl"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "709"]
[BlackElo "385"]
[PlyCount "47"]
[EventDate "2000.06.16"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. f3 Bg7 4. Nc3 d6 5. Qd2 0-0 6. 0-0-0 Bd7 7. g4 Bc6 8. h4 Nxg4 9. e4 Nf6 10. Bh6 e6 11. Bxg7 Kxg7 12. Qg2 Nbd7 13. h5 Qe7 14. Bd3 Rh8 15. e5 Nd5 16. hxg6 fxg6 17. Nge2 Raf8 18. Rdg1 Qf7 19. Nxd5 Bxd5 20. Nf4 Bxa2 21. Rxh7+ Rxh7 22. Bxg6 Qg8 23. Bxh7+ Kxh7 24. Qh1# 1-0

[Event "Niedersachsen-chT U14"]
[Site "Rotenburg"]
[Date "2000.06.18"]
[Round "5.4"]
[White "Koeritz, Jan Hendrik"]
[Black "Heese, Dennis"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "385"]
[BlackElo "330"]
[PlyCount "52"]
[EventDate "2000.06.16"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 Bf5 4. Qb3 Nbd7 5. Qxb7 e6 6. cxd5 exd5 7. Nxd5 Nxd5 8. Qxd5 Be6 9. Qa5 Bd6 10. Qd2 0-0 11. Nf3 h6 12. e4 c5 13. d5 Bg4 14. Bb5 Bxf3 15. gxf3 Ne5 16. Be2 Qf6 17. Qf4 Nd3+ 18. Bxd3 Bxf4 19. Bxf4 Qxf4 20. Ke2 Rab8 21. Rab1 Rb4 22. a3 Rb3 23. Rhg1 h5 24. Rg3 Qc7 25. Bc4 Rb6 26. Kd2 Qb7 0-1

[Event "Niedersachsen-chT U14"]
[Site "Rotenburg"]
[Date "2000.06.18"]
[Round "6.4"]
[White "Schmidt, Alexander"]
[Black "Koeritz, Jan Hendrik"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1033"]
[BlackElo "385"]
[PlyCount "144"]
[EventDate "2000.06.16"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e6 3. Nc3 d6 4. d3 Nc6 5. Nf3 Bd7 6. d4 cxd4 7. Nxd4 Be7 8. Be3 Nf6 9. Bb5 a6 10. Ba4 b5 11. Bb3 b4 12. Nce2 Nxe4 13. Ba4 Qc7 14. f3 Nc5 15. Bxc6 Bxc6 16. Nxc6 Qxc6 17. Nf4 Bg5 18. 0-0 Bxf4 19. Bxf4 Rd8 20. Qd2 Qb6 21. Rab1 Nb3+ 22. Qf2 Qxf2+ 23. Rxf2 Nd4 24. Rd1 e5 25. Be3 Nf5 26. Bb6 Rc8 27. g4 Rc6 28. Ba7 Ne7 29. Bb8 Nc8 30. Rfd2 Ke7 31. Re1 f6 32. f4 Ke6 33. f5+ Ke7 34. Red1 Rd8 35. Kf2 Nb6 36. Ba7 Nc4 37. Rd5 Nxb2 38. Rc1 Nc4 39. Rb1 Na3 40. Rxb4 Rxc2+ 41. Kg3 Rxa2 42. Rb7+ Kf8 43. Bc5 Nb5 44. h3 Rb2 45. Bxd6+ Nxd6 46. Rxb2 Ne4+ 47. Kf3 Ng5+ 48. Ke3 Rxd5 49. Rb8+ Ke7 50. h4 Nf7 51. Rb7+ Rd7 52. Rb6 Rc7 53. Rxa6 Rc3+ 54. Kf2 Kd7 55. Ra8 Rh3 56. Ra7+ Ke8 57. h5 h6 58. Ra8+ Nd8 59. Ra7 e4 60. Rxg7 e3+ 61. Ke2 Nc6 62. Rb7 Nd4+ 63. Kd3 e2+ 64. Kd2 Rh2 65. Rb1 Nf3+ 66. Ke3 e1Q+ 67. Rxe1 Nxe1 68. Kf4 Kf7 69. Kg3 Rg2+ 70. Kh3 Re2 71. Kg3 Re4 72. Kh3 Ng2 0-1

[Event "Niedersachsen-chT U14"]
[Site "Rotenburg"]
[Date "2000.06.17"]
[Round "4.4"]
[White "Suhre, Lars"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1216"]
[BlackElo "385"]
[PlyCount "61"]
[EventDate "2000.06.16"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 h6 4. 0-0 Nf6 5. Nc3 e6 6. d3 a6 7. a3 Nc6 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 Be7 11. e5 d5 12. exf6 dxc4 13. Qxd8+ Bxd8 14. fxg7 Rg8 15. Bxh6 Bf6 16. Rfe1 Bxg7 17. Bxg7 Rxg7 18. Nd5 Kf8 19. Nb6 Rb8 20. Nxc4 Bd7 21. Ne5 Bc6 22. Nxc6 bxc6 23. b4 Rb5 24. c4 Rbg5 25. g3 Ke7 26. Red1 Rf5 27. c5 Rg6 28. Rd6 Rgf6 29. Ra2 Rd5 30. Rxc6 Rd1+ 31. Kg2 1-0

[Event "Niedersachsen-chT U14"]
[Site "Rotenburg"]
[Date "2000.06.17"]
[Round "3.4"]
[White "Szodry, Kai"]
[Black "Koeritz, Jan Hendrik"]
[Result "0-1"]
[ECO "B20"]
[BlackElo "385"]
[PlyCount "58"]
[EventDate "2000.06.16"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d3 a6 3. Be3 Qc7 4. Nd2 b6 5. Be2 Bb7 6. Nh3 Nf6 7. Bf4 e5 8. Be3 Nc6 9. Ng5 Nd8 10. h3 h6 11. Ngf3 Bd6 12. Nh4 Ne6 13. Nf5 0-0-0 14. Nc4 Ne8 15. Nfxd6+ Nxd6 16. Nxd6+ Qxd6 17. 0-0 Qc6 18. a4 f5 19. Bf3 f4 20. Bd2 Rdg8 21. a5 b5 22. b4 g5 23. Re1 h5 24. Kf1 g4 25. Be2 Rg7 26. Ra3 Rhg8 27. hxg4 hxg4 28. f3 g3 29. bxc5 Rh7 0-1

[Event "Niedersachsen-chT U14"]
[Site "Rotenburg"]
[Date "2000.06.16"]
[Round "1.4"]
[White "Koeritz, Jan Hendrik"]
[Black "Hohnholz, Arndt"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "385"]
[BlackElo "817"]
[PlyCount "94"]
[EventDate "2000.06.16"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. Nf3 0-0 6. Be2 c5 7. dxc5 dxc5 8. Qxd8 Rxd8 9. 0-0 a5 10. Rd1 Nc6 11. Bf4 a4 12. Rxd8+ Nxd8 13. Rd1 Nc6 14. Nb5 Nxe4 15. Nc7 Rb8 16. Ne6 Ra8 17. Nd8 Nd4 18. Nxd4 cxd4 19. Bf3 Nc5 20. Re1 e6 21. Bd6 Ra5 22. Bc7 Ra6 23. Be5 d3 24. Bxg7 Kxg7 25. Re3 Rd6 26. Re5 b6 27. Nb7 Nxb7 28. Bxb7 Bxb7 29. h3 d2 30. Kf1 d1Q+ 31. Re1 Qxe1+ 32. Kxe1 Bxg2 33. Ke2 Bxh3 34. Ke3 Bf1 35. Kf3 Bxc4 36. Kf4 f6 37. f3 Bxa2 38. Kg3 Rd2 39. Kh3 Rxb2 40. Kg3 Bd5 41. Kf4 Re2 42. Kg3 a3 43. Kf4 a2 44. Kg3 a1Q 45. Kf4 Qe5+ 46. Kg4 Rg2+ 47. Kh4 Qh2# 0-1

[Event "Niedersachsen-chT U14"]
[Site "Rotenburg"]
[Date "2000.06.16"]
[Round "2.4"]
[White "Koeritz, Jan Hendrik"]
[Black "Kohlmann, Arndt"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "385"]
[BlackElo "768"]
[PlyCount "82"]
[EventDate "2000.06.16"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 Nc6 7. Bd3 Bg4 8. f3 Be6 9. Nge2 0-0 10. Qc2 Nb4 11. Qd2 Nxd3+ 12. Qxd3 Rc8 13. Nb5 c5 14. Nxa7 Qa5+ 15. Kf2 Qxa7 16. Rac1 cxd4 17. Rxc8 Rxc8 18. a3 dxe3+ 19. Bxe3 Qa6 20. Qd2 Qc6 21. Rc1 Qd7 22. Bf4 Rxc1 23. Qxc1 Bd6 24. Bg3 Bxg3+ 25. hxg3 Qc8 26. Qd2 Qc5+ 27. Kf1 Qc4 28. Qd1 Nd7 29. b3 Qa6 30. a4 Nc5 31. Qc2 Nd7 32. b4 d4 33. b5 Qd6 34. Qd3 Nc5 35. Qc2 d3 36. Qd2 Nb3 37. Qd1 d2 38. Nc3 Qd3+ 39. Ne2 Nc5 40. Kf2 Bb3 41. Nf4 Qd4+ 0-1

[Event "Hannover-ch U12"]
[Site "Barsinghausen"]
[Date "1999.??.??"]
[Round "?"]
[White "Boss, Igor"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "E10"]
[PlyCount "111"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nc6 5. a3 Be7 6. e3 0-0 7. Be2 Bd7 8. 0-0 b6 9. h3 Bd6 10. Bd2 Qe7 11. Qc2 g6 12. b4 a6 13. c5 bxc5 14. bxc5 Bxc5 15. dxc5 Qxc5 16. Qc1 Na5 17. Bd1 Rab8 18. Na2 Qxc1 19. Rxc1 Rfc8 20. Bxa5 Bb5 21. Re1 Rb7 22. Nc3 Bc4 23. Be2 Bxe2 24. Rxe2 Rb3 25. Nd4 Rxa3 26. Ra2 Rxa2 27. Nxa2 Ne4 28. Rxc7 Rxc7 29. Bxc7 Nd2 30. Nb4 Nc4 31. Nxa6 e5 32. Nc2 e4 33. Ncb4 Kf8 34. Nxd5 Ke8 35. Nb6 Nxb6 36. Bxb6 Kd7 37. f3 exf3 38. gxf3 Kc6 39. Bd4 Kb5 40. Kg2 Kc4 41. Kg3 Kd3 42. Nb4+ Kc4 43. Nc6 Kd5 44. Nd8 f5 45. Kf4 h6 46. Nf7 h5 47. Kg5 f4 48. Kxf4 Ke6 49. Nh6 Ke7 50. Kg5 Ke6 51. Kxg6 Kd5 52. f4 Ke4 53. f5 Kd5 54. f6 Ke6 55. f7 Ke7 56. Kg7 1-0

[Event "Niedersachsen-chT U12"]
[Site "Mardorf"]
[Date "1999.??.??"]
[Round "7"]
[White "Busse, Alexander"]
[Black "Koeritz, Jan Hendrik"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "33"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 b6 8. h3 Bd7 9. Nd2 Na5 10. Qc2 e6 11. Ngf3 Be7 12. Ne5 Qc7 13. Nxf7 Qxf4 14. Nxh8 Kf8 15. Bxh7 Nxh7 16. Qxh7 Bb5 17. Ng6+ 1-0

[Event "Niedersachsen-chT U12"]
[Site "Mardorf"]
[Date "1999.??.??"]
[Round "4.4"]
[White "Koeritz, Jan Hendrik"]
[Black "Bruemmer, Jan"]
[Result "1-0"]
[ECO "C48"]
[PlyCount "29"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. d3 d6 5. Bg5 Nf6 6. Nc3 Bd7 7. 0-0 0-0 8. Nd5 Nd4 9. Nxf6+ gxf6 10. Bh6 Re8 11. Bxd7 Qxd7 12. c3 Nxf3+ 13. Qxf3 Qe6 14. Qg3+ Kh8 15. Qg7# 1-0

[Event "Niedersachsen-chT U12"]
[Site "Mardorf"]
[Date "1999.??.??"]
[Round "1.4"]
[White "Koeritz, Jan Hendrik"]
[Black "Franczak, Katrin"]
[Result "1-0"]
[ECO "C60"]
[PlyCount "45"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Qf6 4. d3 Bc5 5. Bg5 Qe6 6. 0-0 d5 7. Bxc6+ Qxc6 8. Nxe5 Qe6 9. Bf4 Nf6 10. Re1 Qb6 11. Nc3 Bxf2+ 12. Kf1 Bxe1 13. Qxe1 d4 14. Nd5 Nxd5 15. exd5 Qxb2 16. Nc4+ Kd8 17. Nxb2 Re8 18. Qh4+ Re7 19. Bg5 f6 20. Bxf6 gxf6 21. Qxf6 c5 22. Re1 Be6 23. Rxe6 1-0

[Event "Hannover-ch U12"]
[Site "Barsinghausen"]
[Date "1999.??.??"]
[Round "?"]
[White "Koeritz, Jan Hendrik"]
[Black "Kaminski, J."]
[Result "1-0"]
[ECO "A40"]
[PlyCount "97"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 d6 3. Nc3 Nc6 4. d5 exd5 5. cxd5 Na5 6. Qa4+ Bd7 7. Qxa5 b6 8. Qb4 c5 9. Qb3 Nf6 10. Bg5 h6 11. Bxf6 Qxf6 12. Nf3 Bg4 13. Qb5+ Kd8 14. Qc6 Rc8 15. Qb7 Rc7 16. Qb8+ Kd7 17. Nb5 Rc8 18. Qxa7+ Rc7 19. Qxc7+ Ke8 20. Qc8+ Ke7 21. Qc7+ Ke8 22. Qc6+ Kd8 23. Qxb6+ Kd7 24. Qc6+ Ke7 25. Nc7 Bd7 26. Qa8 Qf5 27. e3 Kf6 28. Qd8+ Kg6 29. Nh4+ Kh7 30. Nxf5 Bxf5 31. Qe8 c4 32. Qxf7 Bg6 33. Qe6 c3 34. a4 cxb2 35. Qxg6+ Kxg6 36. Bd3+ Kf7 37. Rb1 Be7 38. a5 Rb8 39. Ne6 Ra8 40. a6 Rb8 41. a7 Ra8 42. Rxb2 Rxa7 43. 0-0 Bf6 44. Rb3 g6 45. Rfb1 Be7 46. Nd8+ Ke8 47. Rb8 Rd7 48. Bxg6+ Kf8 49. Ne6# 1-0

[Event "Niedersachsen-chT U12"]
[Site "Mardorf"]
[Date "1999.??.??"]
[Round "5"]
[White "Koeritz, Jan Hendrik"]
[Black "Laake, Tamara"]
[Result "1-0"]
[ECO "C62"]
[PlyCount "109"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. Nxd4 Bd7 6. Bxc6 bxc6 7. 0-0 Nf6 8. Bg5 Be7 9. Bxf6 Bxf6 10. Nf5 Bxb2 11. Nc3 Bxa1 12. Qxa1 Bxf5 13. exf5 0-0 14. Qd1 Rb8 15. Qg4 g6 16. h3 Rb2 17. Rc1 Qe7 18. h4 Kh8 19. Qd4+ f6 20. Qxa7 gxf5 21. Kf1 Qe5 22. Nd1 Qb5+ 23. c4 Qb8 24. Qa4 Rb6 25. Qc2 Ra6 26. Nc3 Qc8 27. Qd3 Re8 28. Qg3 Rg8 29. Qf4 Ra3 30. Qh6 Qe6 31. c5 Re8 32. Qd2 dxc5 33. Rc2 Qf7 34. Nb1 Ra4 35. Nc3 Rxh4 36. g3 Rh1+ 37. Kg2 Qh5 38. Ne2 Qh3+ 39. Kf3 Qg4+ 40. Kg2 Qh5 41. Nf4 Qh2+ 42. Kf3 Ree1 43. Qd8+ Kg7 44. Qxc7+ Kh6 45. Qxc6 Kg7 46. Qd7+ Kg8 47. Qd8+ Kg7 48. Qd7+ Kg8 49. Qd5+ Kg7 50. Ne6+ Kg8 51. Ng5+ Kh8 52. Qd8+ Kg7 53. Qd7+ Kg8 54. Qf7+ Kh8 55. Qf8# 1-0

[Event "Niedersachsen-chT U12"]
[Site "Mardorf"]
[Date "1999.??.??"]
[Round "2.4"]
[White "Koeritz, Jan Hendrik"]
[Black "Lubbe, Alexander"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "48"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 Bd7 4. d4 c5 5. Bg5 Qb6 6. b3 Be7 7. Bxe7 Nxe7 8. Be2 Nbc6 9. Nc3 cxd4 10. Na4 Qb4+ 11. Nd2 Nxe5 12. Nb2 Qc3 13. Qc1 Rc8 14. Bd1 d3 15. Na4 Bxa4 16. Qa3 Qxa1 17. Qxa4+ N7c6 18. b4 dxc2 19. Qxc2 0-0 20. Nb3 Nd3+ 21. Qxd3 Qe5+ 22. Be2 Nxb4 23. Qd2 Qc3 24. Qxc3 Rxc3 0-1

[Event "Hannover-ch U12"]
[Site "Barsinghausen"]
[Date "1999.??.??"]
[Round "?"]
[White "Koeritz, Jan Hendrik"]
[Black "Wall, Max"]
[Result "0-1"]
[ECO "D35"]
[PlyCount "72"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 Bf5 7. Bd3 Bxd3 8. Qxd3 Nc6 9. Nge2 Nb4 10. Qd2 c6 11. 0-0-0 Na6 12. Kb1 Ne4 13. Nxe4 Bxg5 14. Nxg5 Qxg5 15. Nf4 0-0-0 16. g3 Qf5+ 17. Ka1 Nc7 18. Qa5 Kb8 19. Rd3 Qe4 20. Rb1 Na6 21. Rb3 Nc7 22. Qb4 b6 23. Ra3 Qc2 24. Qe7 Rhf8 25. h4 Qe4 26. Qb4 Qc2 27. Rc3 Qxf2 28. Qa4 b5 29. Qa5 Qd2 30. Nxd5 Nxd5 31. Ra3 Qxa5 32. Rxa5 Nxe3 33. Rc1 Rc8 34. Ra3 Rfe8 35. Re1 Nc2+ 36. Kb1 Nxe1 0-1

[Event "Niedersachsen-chT U12"]
[Site "Mardorf"]
[Date "1999.??.??"]
[Round "6.4"]
[White "Kreichgauer, Martin"]
[Black "Koeritz, Jan Hendrik"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "140"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. Bc4 d5 3. Bb3 e5 4. Nf3 Bg4 5. Qe2 Nf6 6. d3 Be7 7. Bg5 h6 8. Bh4 Nbd7 9. Nbd2 Qb6 10. h3 Bh5 11. Bg3 Nc5 12. Bxe5 Nxb3 13. Nxb3 Qb4+ 14. c3 Qb6 15. Bd4 Qd8 16. g4 Bg6 17. Nh4 Bh7 18. Nf5 c5 19. Bxc5 Bxc5 20. Nxc5 Rc8 21. Nxb7 Qd7 22. Nbd6+ Kf8 23. Nxc8 Qxc8 24. 0-0 g6 25. Nxh6 Kg7 26. g5 Ne8 27. Ng4 Qd8 28. b3 Qxg5 29. c4 dxe4 30. Qxe4 Qh4 31. Kg2 g5 32. Qd4+ Kg8 33. Qxa7 Bxd3 34. Rfd1 Be4+ 35. Kf1 Qxh3+ 36. Ke1 Qxg4 37. Rd8 Rh1+ 38. Kd2 Qf4+ 39. Kc3 Qe5+ 40. Qd4 Rh3+ 41. Kb4 Qe7+ 42. Kb5 Qb7+ 43. Qb6 Bc6+ 44. Kc5 Qe7+ 45. Kxc6 Rh6+ 46. Kb5 Rxb6+ 47. Kxb6 Qxd8+ 48. Kb5 Nd6+ 49. Kb4 Qb8+ 50. Kc3 Ne4+ 51. Kd3 Nxf2+ 52. Ke3 Qe5+ 53. Kxf2 Qxa1 54. c5 Qd4+ 55. Kg3 Qxc5 56. Kg4 Qg1+ 57. Kf5 g4 58. b4 Qb1+ 59. Kxg4 Qxb4+ 60. Kf5 Qa5+ 61. Kf6 Qxa2 62. Ke7 f5 63. Kd7 f4 64. Ke7 f3 65. Kd7 f2 66. Ke7 f1R 67. Kd7 Re1 68. Kd6 Qd2+ 69. Kc5 Rc1+ 70. Kb5 Qb2+ 0-1

[Event "Niedersachsen-chT U12"]
[Site "Mardorf"]
[Date "1999.??.??"]
[Round "3"]
[White "Michalowski, Rebecca"]
[Black "Koeritz, Jan Hendrik"]
[Result "1/2-1/2"]
[ECO "B13"]
[PlyCount "135"]
[EventDate "1999.??.??"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. Nf3 Bg4 6. Be2 Nf6 7. 0-0 e6 8. Bg5 Be7 9. Nc3 0-0 10. h3 Bxf3 11. Bxf3 Qb6 12. Be3 Qxb2 13. Qd2 Rac8 14. Na4 Qa3 15. Nc3 Bb4 16. Nb1 Qb2 17. Qc1 Qxc1 18. Rxc1 Na5 19. c3 Bd6 20. Nd2 Ba3 21. Rc2 Rc6 22. Re1 Nc4 23. Nxc4 Rxc4 24. Be2 Rc6 25. Rb1 b6 26. Bg5 Ne4 27. Be3 a5 28. f3 Ng3 29. Bb5 Rc7 30. Bf4 Rcc8 31. Bxg3 Rfd8 32. Rb3 Bb4 33. a3 Bd6 34. Bxd6 Rxd6 35. Ba6 Ra8 36. Bd3 a4 37. Rb1 Rc6 38. Bb5 Rc7 39. c4 dxc4 40. Bxc4 Rb8 41. Bd3 Rxc2 42. Bxc2 b5 43. Be4 Kf8 44. d5 exd5 45. Bxd5 Ke7 46. Re1+ Kd6 47. Bxf7 b4 48. Re6+ Kd7 49. axb4 Rxb4 50. Ra6 Kc7 51. Be8 Rb1+ 52. Kf2 Rb2+ 53. Kg3 Ra2 54. Rxa4 Rxa4 55. Bxa4 Kb6 56. Bc2 h6 57. Kf4 g5+ 58. Kg4 Kc6 59. Kh5 Kd6 60. Kxh6 Ke7 61. Kxg5 Kf8 62. h4 Kg8 63. h5 Kh8 64. f4 Kg8 65. f5 Kg7 66. f6+ Kg8 67. Kg6 Kh8 68. Kf7 1/2-1/2

