[Event "Mecklenburg VP Landesliga Ost 1920"]
[Site "Mecklenburg VP"]
[Date "2020.02.02"]
[Round "6.5"]
[White "Hartzendorf, Jonathan"]
[Black "Wolfgramm, Theo"]
[Result "1-0"]
[ECO "A13"]
[PlyCount "43"]
[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 "Rostock SSC 07"]
[BlackTeam "Torgelow II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. Nf3 Nf6 5. e3 c6 6. g3 Bd6 7. Bg2 Be6 8. 0-0 0-0 9. d4 Re8 10. a3 Nbd7 11. b4 Nf8 12. Bd2 Qd7 13. Re1 Bh3 14. Bh1 Qg4 15. Nh4 Re6 16. Bf3 Qg5 17. e4 Qxh4 18. gxh4 Nxe4 19. Nxe4 dxe4 20. Bxe4 f5 21. Bg2 Rg6 22. Qb3+ 1-0

[Event "Mecklenburg VP Landesliga Ost 1920"]
[Site "Mecklenburg VP"]
[Date "2019.12.08"]
[Round "4.4"]
[White "Richter, Frank"]
[Black "Hartzendorf, Jonathan"]
[Result "1-0"]
[ECO "E60"]
[PlyCount "45"]
[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 "Saal Waterkant"]
[BlackTeam "Rostock SSC 07"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Bf5 7. Nh4 Be4 8. Nc3 Bxg2 9. Nxg2 Nbd7 10. e4 c5 11. Be3 Rc8 12. b3 Qa5 13. Rc1 a6 14. Qd2 Rfe8 15. h3 cxd4 16. Bxd4 Ne5 17. Bxe5 Qxe5 18. Qe3 Nd7 19. Rfd1 Qa5 20. Rd5 Rc5 21. Ne1 Bxc3 22. Qxc3 Qxa2 23. Rd2 1-0

[Event "Mecklenburg VP Landesliga Ost 1920"]
[Site "Mecklenburg VP"]
[Date "2019.10.20"]
[Round "2.4"]
[White "Jepp, Wolfgang"]
[Black "Hartzendorf, Jonathan"]
[Result "0-1"]
[ECO "B47"]
[WhiteElo "1754"]
[PlyCount "52"]
[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 "Bergen Rugia"]
[BlackTeam "Rostock SSC 07"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 e6 3. Nf3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 Nc6 7. Bg2 Nf6 8. 0-0 Nxd4 9. Qxd4 Bc5 10. Qd3 0-0 11. Be3 d6 12. Qe2 Bd7 13. Rfd1 Bb4 14. Bd2 Rac8 15. Rac1 Bc6 16. Nb1 Bc5 17. Bc3 Nd7 18. Bd4 Qb6 19. c3 Ba4 20. b3 Bxd4 21. Rxd4 Qxd4 22. Rd1 Bb5 23. c4 Bxc4 24. bxc4 Qxc4 25. Qd2 Rc6 26. Na3 Qc3 0-1

[Event "Mecklenburg VP Landesliga Ost 1920"]
[Site "Mecklenburg VP"]
[Date "2019.09.29"]
[Round "1.8"]
[White "Hartzendorf, Jonathan"]
[Black "Reimer, Karl"]
[Result "1-0"]
[ECO "A28"]
[BlackElo "1520"]
[PlyCount "115"]
[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 "Rostock SSC 07"]
[BlackTeam "Wolgast Motor"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 b6 7. Bg5 Be7 8. Ne4 Nxe4 9. Qxe4 Bb7 10. Qxb7 Bxg5 11. e3 0-0 12. Bd3 c6 13. Rd1 Qf6 14. 0-0 Qxb2 15. Qxd7 Qf6 16. f4 Bh6 17. g4 Rfb8 18. Qc7 Rc8 19. Qb7 Rcb8 20. Qa6 g5 21. Qa3 gxf4 22. Bf5 Qe5 23. exf4 Bxf4 24. Rfe1 Qc5+ 25. Qxc5 bxc5 26. Rd7 Rd8 27. Bxh7+ Kf8 28. Ree7 Rxd7 29. Rxd7 a5 30. h4 Rb8 31. Ra7 Bd2 32. Bc2 Rb2 33. Bb3 Be3+ 34. Kf1 Rf2+ 35. Ke1 Rg2 36. Rxa5 Bd2+ 37. Kf1 Rxg4 38. Rxc5 Rxh4 39. Ke2 Bb4 40. Rxc6 Rd4 41. Ke3 Rd6 42. Rc7 f6 43. Ke4 Re6+ 44. Kf5 Re7 45. Rc6 Bc3 46. Rc8+ Kg7 47. Ra8 Re5+ 48. Kf4 Rc5 49. Ke4 Kf7 50. Kd3 Be5 51. Ba4 Ke7 52. Bb5 Kd6 53. a4 Kc7 54. a5 f5 55. a6 Bd6 56. Rg8 Re5 57. a7 Kb7 58. a8Q+ 1-0

[Event "Mecklenburg VP VL1819"]
[Site "Mecklenburg VP"]
[Date "2019.04.07"]
[Round "9.7"]
[White "Patrias, Joachim"]
[Black "Hartzendorf, Jonathan"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "1385"]
[BlackElo "1773"]
[PlyCount "72"]
[EventDate "2018.10.21"]
[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 "Warnemuende SF Ostsee"]
[BlackTeam "Rostock SSC 07"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Ndf3 c5 6. Be3 Nc6 7. Bb5 Qa5+ 8. c3 Qxb5 9. Ne2 b6 10. 0-0 Ba6 11. Re1 Qxb2 12. Rb1 Qa3 13. Rb3 Qa4 14. Nc1 Bc4 15. Rb1 Qxd1 16. Rxd1 Be7 17. a4 0-0 18. Nd2 Na5 19. f4 g6 20. Nxc4 Nxc4 21. Bf2 Rfc8 22. Ne2 Rc7 23. g4 Rac8 24. h4 cxd4 25. Nxd4 Na3 26. Rb3 Rxc3 27. Rxa3 Rxa3 28. Nb5 Rxa4 29. Nd4 Bc5 30. Kg2 Bxd4 31. Bxd4 Rc2+ 32. Kf3 Ra3+ 33. Be3 Nc5 34. Rd4 Ne4 35. Rxe4 dxe4+ 36. Kxe4 Re2 0-1

[Event "Mecklenburg VP VL1819"]
[Site "Mecklenburg VP"]
[Date "2019.03.10"]
[Round "7.4"]
[White "Fischer, Torsten"]
[Black "Hartzendorf, Jonathan"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1975"]
[BlackElo "1773"]
[PlyCount "113"]
[EventDate "2018.10.21"]
[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 "Schwerin SF III"]
[BlackTeam "Rostock SSC 07"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. f4 d5 2. Nf3 Nf6 3. g3 c5 4. Bg2 Nc6 5. c3 Bf5 6. d3 Qd7 7. 0-0 Bh3 8. Qc2 Bxg2 9. Kxg2 d4 10. Na3 g6 11. e4 dxe3 12. Bxe3 b6 13. Rad1 Bg7 14. h3 0-0 15. Nc4 Qd5 16. a4 Rfe8 17. Bg1 Rad8 18. Ne3 Qd7 19. Ng5 Qb7 20. Kh2 h6 21. Ne4 e6 22. Nc4 Nxe4 23. dxe4 Rxd1 24. Rxd1 Rd8 25. Nd6 Qe7 26. Nc4 g5 27. Be3 f6 28. Kg2 Rd7 29. Kf3 Qd8 30. Ke2 Kf7 31. Rxd7+ Qxd7 32. Qd3 Ke7 33. a5 Qc7 34. axb6 axb6 35. b4 cxb4 36. Bxb6 Qb8 37. Bc5+ Ke8 38. Nd6+ Kf8 39. cxb4 Kg8 40. Qc4 Nd8 41. f5 Bf8 42. fxe6 Bxd6 43. Bxd6 Qa8 44. e7+ Nf7 45. Bc7 Kg7 46. b5 Qe8 47. Qc5 Qa8 48. Ke3 g4 49. h4 f5 50. exf5 Qf3+ 51. Kd4 Qd1+ 52. Kc4 Qa4+ 53. Kd5 Qa8+ 54. Qc6 Qa2+ 55. Qc4 Qa8+ 56. Kd4 Qe8 57. Qe6 1-0

[Event "Mecklenburg VP VL1819"]
[Site "Mecklenburg VP"]
[Date "2019.02.24"]
[Round "6.6"]
[White "Hartzendorf, Jonathan"]
[Black "Troyke, Jannis"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "1773"]
[BlackElo "1895"]
[PlyCount "91"]
[EventDate "2018.10.21"]
[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 "Rostock SSC 07"]
[BlackTeam "Greifswald II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 d6 6. 0-0 Nf6 7. d3 a6 8. Rb1 Rb8 9. a4 0-0 10. Ne1 Nb4 11. Nc2 Bd7 12. Bd2 Bc6 13. Nxb4 Bxg2 14. Kxg2 cxb4 15. Ne4 a5 16. Qc1 Qc7 17. f3 Rfd8 18. Nxf6+ Bxf6 19. Bg5 Bg7 20. Qe3 b3 21. Qc1 d5 22. Bf4 e5 23. Bg5 f6 24. Bh6 dxc4 25. Bxg7 Kxg7 26. Rd1 Rd4 27. e3 Rd6 28. dxc4 Rxd1 29. Qxd1 Qxc4 30. Qd7+ Kg8 31. Rd1 Qe2+ 32. Kh3 Rf8 33. Qe6+ Kh8 34. Qe7 Kg8 35. Rd7 Qf1+ 36. Kh4 Qc4+ 37. e4 Rf7 38. Qd8+ Rf8 39. Qe7 Rf7 40. Qd8+ Rf8 41. Qxa5 g5+ 42. Kh5 Qf1 43. Qd5+ Kh8 44. Qe6 Qxf3+ 45. Kh6 Qxe4 46. Qxf6+ 1-0

[Event "Mecklenburg VP VL1819"]
[Site "Mecklenburg VP"]
[Date "2019.01.20"]
[Round "5.7"]
[White "Zacharias, Uwe"]
[Black "Hartzendorf, Jonathan"]
[Result "0-1"]
[ECO "A52"]
[WhiteElo "1834"]
[BlackElo "1773"]
[PlyCount "94"]
[EventDate "2018.10.21"]
[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 "Ludwigslust VT 2000"]
[BlackTeam "Rostock SSC 07"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. e3 Ngxe5 6. Nxe5 Nxe5 7. Be2 Bb4+ 8. Bd2 Qe7 9. 0-0 Bxd2 10. Nxd2 b6 11. Nf3 Bb7 12. Nxe5 Qxe5 13. Bf3 Bxf3 14. Qxf3 0-0 15. b3 a5 16. Rad1 d6 17. Qc6 Qc5 18. Qd5 a4 19. Rb1 axb3 20. axb3 Ra3 21. b4 Qxd5 22. cxd5 Rfa8 23. Rfc1 R8a7 24. g3 Ra2 25. Rc3 Rd2 26. Rbc1 Raa2 27. Rxc7 g6 28. Rf1 Rxd5 29. Rc6 Rb5 30. Rb1 d5 31. Rd6 Ra4 32. Rc1 Rbxb4 33. Rc8+ Kg7 34. Rxd5 Rb2 35. Rd1 Raa2 36. Rf1 b5 37. Rcc1 b4 38. Rb1 b3 39. Kg2 Kf6 40. Rxb2 Rxb2 41. Rd1 Ke6 42. Rd4 Rc2 43. Rb4 b2 44. g4 Kd5 45. Kf3 Kc5 46. Rb7 Kc4 47. Ke4 Kc3 0-1

[Event "Mecklenburg VP VL1819"]
[Site "Mecklenburg VP"]
[Date "2018.11.25"]
[Round "3.6"]
[White "Hartzendorf, Jonathan"]
[Black "Jeske, Holger"]
[Result "1/2-1/2"]
[ECO "A81"]
[WhiteElo "1773"]
[BlackElo "1820"]
[PlyCount "50"]
[EventDate "2018.10.21"]
[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 "Rostock SSC 07"]
[BlackTeam "Graal Mueritz"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 f5 2. Nf3 d6 3. d4 Nf6 4. Nc3 c6 5. g3 Qc7 6. Bg2 e5 7. 0-0 Be7 8. c5 e4 9. cxd6 Bxd6 10. Ne5 Be6 11. f4 0-0 12. b3 Rd8 13. e3 Nbd7 14. Qe2 Nb6 15. Bb2 Qe7 16. Rfd1 a5 17. Nc4 Bc7 18. Ba3 Qf7 19. Nxb6 Bxb6 20. Na4 Ba7 21. Rac1 b5 22. Nc5 b4 23. Bb2 Bd5 24. Bh3 g6 25. Na4 h5 1/2-1/2

[Event "Mecklenburg VP VL1819"]
[Site "Mecklenburg VP"]
[Date "2018.11.11"]
[Round "2.6"]
[White "Westphal, Wolfgang"]
[Black "Hartzendorf, Jonathan"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2075"]
[BlackElo "1773"]
[PlyCount "73"]
[EventDate "2018.10.21"]
[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 "Schwerin SF II"]
[BlackTeam "Rostock SSC 07"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. b4 d5 4. exd5 exd5 5. bxc5 Bxc5 6. d4 Bd6 7. Bd3 Ne7 8. 0-0 Bf5 9. Bxf5 Nxf5 10. Qd3 Qd7 11. Re1+ Ne7 12. Nc3 0-0 13. Nb5 Nbc6 14. Nxd6 Qxd6 15. Ba3 Qd7 16. Re3 Rfe8 17. Rae1 Ng6 18. g3 Rxe3 19. Qxe3 Na5 20. Nd2 h5 21. h4 Rc8 22. c3 Qa4 23. Bb4 Qxa2 24. Nf3 Nc6 25. Ng5 Nxb4 26. cxb4 Qa6 27. Qf3 Qf6 28. Qxd5 Rf8 29. Re3 b6 30. Ne4 Qe6 31. Qxh5 Nh8 32. Ng5 Qg6 33. Qe2 f6 34. Qa2+ Nf7 35. Ne6 Rc8 36. Nf4 Qc2 37. Re8+ 1-0

[Event "Mecklenburg VP VL1819"]
[Site "Mecklenburg VP"]
[Date "2018.10.21"]
[Round "1.6"]
[White "Bress, Aaron"]
[Black "Hartzendorf, Jonathan"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "1831"]
[BlackElo "1773"]
[PlyCount "69"]
[EventDate "2018.10.21"]
[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 "Torgelow Droegeheide"]
[BlackTeam "Rostock SSC 07"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nc6 7. Nxc6 Qxc6 8. Nc3 b5 9. e5 Bb7 10. Be4 Qc7 11. Bxb7 Qxb7 12. Qd3 Ne7 13. f4 Ng6 14. Ne4 Rc8 15. Be3 Be7 16. Rad1 0-0 17. c3 Rc4 18. Bd4 Rfc8 19. g4 Qb8 20. Qg3 Qb7 21. Qf3 Qb8 22. Qg3 Qb7 23. Nd2 Rxd4 24. cxd4 Rc2 25. f5 Qd5 26. fxg6 Qxd4+ 27. Kh1 Rxd2 28. Rxd2 Qxd2 29. gxf7+ Kf8 30. Qf3 d5 31. exd6 Qxd6 32. Rd1 Qc7 33. Qa8+ Kxf7 34. Rf1+ Kg6 35. Qe8+ 1-0

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.29"]
[Round "9"]
[White "Hartzendorf, Jonathan"]
[Black "Carow, Annelen"]
[Result "0-1"]
[ECO "D52"]
[WhiteElo "1671"]
[BlackElo "1773"]
[PlyCount "104"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 c6 5. e3 Nbd7 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 0-0 9. Be2 dxc4 10. Bxf6 Nxf6 11. Nxc4 Qc7 12. 0-0 Be7 13. Ne4 Nxe4 14. Qxe4 b5 15. Ne5 Bb7 16. Bd3 g6 17. Qg4 Bf6 18. f4 Qe7 19. Rac1 Rac8 20. Rc5 Rfd8 21. g3 Rd5 22. Rfc1 Qf8 23. Be4 Rxc5 24. Rxc5 Be7 25. Rc2 f5 26. Nxg6 fxg4 27. Nxf8 Bxf8 28. f5 exf5 29. Bxf5 Re8 30. Kf2 Bh6 31. e4 Bc8 32. Bxc8 Rxc8 33. d5 Rf8+ 34. Ke2 cxd5 35. exd5 Rd8 36. Rc5 a6 37. Rc6 Bf8 38. Rxa6 Rxd5 39. Rb6 Rh5 40. Kd3 b4 41. Ke4 Rxh2 42. a3 bxa3 43. bxa3 Bxa3 44. Kf4 h5 45. Rb8+ Kf7 46. Rb7+ Be7 47. Rb5 Rf2+ 48. Ke4 Kg6 49. Rb3 Bf6 50. Rd3 Rc2 51. Kf4 Rc4+ 52. Ke3 Rc3 0-1

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.28"]
[Round "8"]
[White "Wachinger, David"]
[Black "Hartzendorf, Jonathan"]
[Result "0-1"]
[ECO "D08"]
[WhiteElo "1500"]
[BlackElo "1671"]
[PlyCount "70"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Bg4 6. a3 f6 7. e6 Bxe6 8. Nb3 Bxc4 9. Nbxd4 Qd7 10. Qa4 Bd5 11. Nxc6 Bxc6 12. Qc2 Bd6 13. g3 0-0-0 14. Bg2 Ne7 15. 0-0 h5 16. e4 g5 17. Bd2 g4 18. Nh4 Bxg3 19. fxg3 Qxd2 20. Qxd2 Rxd2 21. b4 Rf8 22. Nf5 Ng6 23. Ng7 h4 24. Rf2 Rxf2 25. Kxf2 h3 26. Bh1 Ne5 27. Nf5 Rd8 28. Ke2 Bb5+ 29. Ke1 Rd3 30. a4 Bc4 31. Rc1 Kd7 32. b5 Ra3 33. Rd1+ Ke8 34. Ng7+ Kf7 35. Nf5 Rxa4 0-1

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.27"]
[Round "7"]
[White "Hartzendorf, Jonathan"]
[Black "Klosa, Kevin"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "1671"]
[BlackElo "1493"]
[PlyCount "73"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 e5 7. d3 Nc6 8. Bd2 h6 9. Rb1 a5 10. a3 Be6 11. Ne1 Nd7 12. Nc2 f5 13. b4 axb4 14. axb4 Qc8 15. Nd5 Bxd5 16. Bxd5+ Kh7 17. b5 Ne7 18. Bg2 Nb6 19. Nb4 f4 20. Qb3 g5 21. Ra1 g4 22. d4 h5 23. c5 Nd7 24. Rxa8 Qxa8 25. Qe6 Qd8 26. cxd6 cxd6 27. dxe5 dxe5 28. Bc3 Rf6 29. Be4+ Kh8 30. Qc4 Qb6 31. Nd5 Nxd5 32. Qxd5 Rd6 33. Qxb7 Nb8 34. Qc8+ Qd8 35. Qf5 Rh6 36. Bxe5 Bxe5 37. Qxe5+ 1-0

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.26"]
[Round "6"]
[White "Bischoff, Nico"]
[Black "Hartzendorf, Jonathan"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "1518"]
[BlackElo "1671"]
[PlyCount "32"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. Bg5 Be7 6. e3 0-0 7. Bd3 dxc4 8. Bxc4 Nd5 9. Bxe7 Qxe7 10. Bd3 Qb4 11. Qc2 h6 12. 0-0 Nd7 13. a3 Qe7 14. Rac1 Re8 15. Bc4 N7b6 16. Bb3 Bd7 1/2-1/2

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.25"]
[Round "5"]
[White "Hartzendorf, Jonathan"]
[Black "Hundt, Fabian"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1671"]
[BlackElo "1948"]
[PlyCount "96"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. Nf3 e5 4. d3 g6 5. g3 Bg7 6. Bg2 Nge7 7. 0-0 d6 8. Ne1 0-0 9. Nc2 f5 10. Ne3 Be6 11. Ned5 Qd7 12. Re1 f4 13. gxf4 Bh3 14. e4 Rf7 15. Qf3 Bg4 16. Qg3 Nxd5 17. cxd5 Nd4 18. Rb1 Raf8 19. f3 Bh5 20. Ne2 Nxe2+ 21. Rxe2 exf4 22. Qh4 Qb5 23. Rd2 Bd4+ 24. Kh1 Be3 25. Rd1 Qa4 26. Qe1 Qxa2 27. Bxe3 fxe3 28. Qxe3 Bxf3 29. Bxf3 Rxf3 30. Qg5 Rxd3 31. Rg1 Qc4 32. Rbe1 Qd4 33. Qg4 Qf6 34. Rgf1 Rf3 35. Rxf3 Qxf3+ 36. Qxf3 Rxf3 37. e5 dxe5 38. Rxe5 Rd3 39. Re8+ Kf7 40. Rb8 Rd1+ 41. Kg2 Rd2+ 42. Kg3 Rxb2 43. Rc8 Ke7 44. Rh8 a5 45. Rxh7+ Kd6 46. Rg7 a4 47. Rxg6+ Kxd5 48. Rg8 Rb6 0-1

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.25"]
[Round "4"]
[White "Simon, Christopher"]
[Black "Hartzendorf, Jonathan"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1922"]
[BlackElo "1671"]
[PlyCount "101"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e6 2. b3 d5 3. Bb2 Nf6 4. e5 Nfd7 5. f4 c5 6. Qg4 Nc6 7. Nf3 Ne7 8. Be2 Nf5 9. Nc3 a6 10. 0-0 Be7 11. Qh3 Nf8 12. g4 Nh6 13. Nd1 Ng6 14. Qg3 b5 15. c3 Bb7 16. d4 c4 17. Ne3 Bc8 18. Bd1 Bd7 19. Bc2 Qc8 20. Nd2 Nh4 21. f5 Bg5 22. fxe6 Bxe6 23. h3 Bxe3+ 24. Qxe3 Bxg4 25. hxg4 Qxg4+ 26. Kf2 Qg2+ 27. Ke1 0-0-0 28. Qf2 Qg5 29. Kd1 Ng2 30. Kc1 Ne3 31. Qf4 Qxf4 32. Rxf4 g5 33. Rf6 Nhg4 34. Rxa6 h5 35. Nf3 Kb7 36. Ra5 Kb6 37. b4 Rdg8 38. a4 bxa4 39. Bxa4 h4 40. Rb5+ Kc7 41. Rc5+ Kd8 42. Bb5 Ke7 43. Rc7+ Kf8 44. Ra8+ Kg7 45. Rxg8+ Rxg8 46. Nxg5 Rf8 47. e6 Nf5 48. exf7 Kg6 49. Nh3 Nge3 50. Bd7 Rxf7 51. Be8 1-0

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.24"]
[Round "3"]
[White "Hartzendorf, Jonathan"]
[Black "Erben, Katrin"]
[Result "1-0"]
[ECO "A27"]
[WhiteElo "1671"]
[BlackElo "1044"]
[PlyCount "55"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bc5 3. Nf3 Nc6 4. g3 d6 5. Bg2 Be6 6. b3 Nf6 7. Bb2 0-0 8. 0-0 a6 9. e3 Bg4 10. h3 Bf5 11. d4 Bb4 12. g4 Bxc3 13. Bxc3 exd4 14. exd4 Be4 15. Re1 Re8 16. d5 Na7 17. Bd4 b5 18. Nd2 Bxg2 19. Kxg2 c5 20. Rxe8+ Qxe8 21. Bxf6 gxf6 22. Qe1 b4 23. Ne4 Qe7 24. Qe3 Nc8 25. Re1 Nb6 26. Qf4 Re8 27. Nxf6+ Kg7 28. Nxe8+ 1-0

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.23"]
[Round "1"]
[White "Hartzendorf, Jonathan"]
[Black "Goelz, Daniel"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "1671"]
[BlackElo "2095"]
[PlyCount "66"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d6 3. Nf3 e5 4. d3 g6 5. g3 Bg7 6. Bg2 Nc6 7. 0-0 0-0 8. Ne1 Nd7 9. Nc2 a5 10. Ne3 Nd4 11. Nc2 Ne6 12. Rb1 c6 13. Bd2 f5 14. a3 a4 15. Nb4 Ndc5 16. Nxc6 bxc6 17. Bxc6 Ra7 18. Nxa4 Nxa4 19. Bxa4 Bb7 20. Be3 Ra8 21. Qb3 Qe7 22. c5 Rfb8 23. cxd6 Qxd6 24. Bc5 Qd5 25. e4 fxe4 26. dxe4 Nxc5 27. exd5 Nxb3 28. Bxb3 Ba6 29. Ba2 Bxf1 30. Kxf1 e4 31. d6+ Kf8 32. Bd5 Rxa3 33. b4 Ra1 0-1

[Event "GER-ch U25"]
[Site "Oberhof"]
[Date "2010.05.23"]
[Round "2"]
[White "Rosenberger, Andreas"]
[Black "Hartzendorf, Jonathan"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "1441"]
[BlackElo "1671"]
[PlyCount "74"]
[EventDate "2010.05.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 Nc6 5. Ngf3 Nf6 6. e5 Nd7 7. Bd3 b6 8. 0-0 cxd4 9. cxd4 Nb4 10. Be2 Ba6 11. Bxa6 Nxa6 12. a3 Be7 13. Nb3 0-0 14. Qe2 Nc7 15. Ne1 f6 16. exf6 Bxf6 17. Nd3 Re8 18. Bf4 Bg5 19. Be5 Nb5 20. Qg4 Nxe5 21. Nxe5 Nd6 22. f4 Bf6 23. Rfe1 Nc4 24. Nd3 Qd7 25. Re2 Re7 26. Rae1 Rae8 27. Kh1 Qb5 28. Nbc1 Bxd4 29. Rxe6 Ne3 30. R6xe3 Rxe3 31. Rxe3 Rxe3 32. Ne2 Bxb2 33. Ne5 Qe8 34. Kg1 Bxe5 35. fxe5 Rxe5 36. Nd4 Re1+ 37. Kf2 Qe3# 0-1

