[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2014.04.27"]
[Round "8"]
[White "Dreessen, Jakob"]
[Black "Birkhahn, Mattis"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1823"]
[BlackElo "1695"]
[PlyCount "23"]
[EventDate "2014.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Bc4 Nc6 5. Nc3 Nb6 6. Bb5 e6 7. Bxc6+ bxc6 8. Nf3 Ba6 9. Ne5 c5 10. Qf3 Qf6 11. Qc6+ Kd8 12. Bg5 1-0

[Event "Kiel Cup U20"]
[Site "Kiel"]
[Date "2012.10.07"]
[Round "7"]
[White "Petersen, Finn Christopher"]
[Black "Birkhahn, Mattis"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "1238"]
[BlackElo "1695"]
[PlyCount "58"]
[EventDate "2012.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. c3 cxd4 5. cxd4 d5 6. exd5 Nf6 7. Nc3 Nxd5 8. Bc4 Nxc3 9. bxc3 0-0 10. Ba3 Bg4 11. h3 Qc7 12. Qe2 Bxf3 13. gxf3 b5 14. Bd5 Qxc3+ 15. Kf1 Qxa1+ 16. Kg2 Qc3 17. Bb2 Qc7 18. Bxa8 Nd7 19. Rc1 Qf4 20. Bc6 Nb6 21. Bxb5 Bxd4 22. Bxd4 Qg5+ 23. Kh2 Qxc1 24. Qe5 f6 25. Qe6+ Kh8 26. Qxe7 Qf4+ 27. Kg2 Kg8 28. Qe6+ Kg7 29. Be3 Qf5 1/2-1/2

[Event "Kiel Cup U20"]
[Site "Kiel"]
[Date "2012.10.06"]
[Round "6"]
[White "Dreessen, Jakob"]
[Black "Birkhahn, Mattis"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1811"]
[BlackElo "1695"]
[PlyCount "90"]
[EventDate "2012.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 Nc6 5. Bc4 d6 6. d3 Nf6 7. 0-0 0-0 8. a4 Bd7 9. Qe1 Qc8 10. Qh4 Be6 11. Bxe6 fxe6 12. e5 Nd5 13. Ng5 h6 14. Nge4 Nxc3 15. Nxc3 dxe5 16. f5 g5 17. Qc4 Nd4 18. Ne4 Kh8 19. Nxc5 Rxf5 20. Bd2 Qf8 21. Rfe1 Rf2 22. Ne4 Rc8 23. Qxc8 Qxc8 24. Nxf2 Qxc2 25. Bc3 Ne2+ 26. Kf1 Nxc3 27. bxc3 Qxc3 28. Rec1 Qd4 29. Ra2 e4 30. Rc4 Qd5 31. Rcc2 exd3 32. Rd2 Bc3 33. Nxd3 Bxd2 34. Rxd2 e5 35. Rd1 e4 36. Nb2 Qb3 37. Rd2 e3 38. Re2 Qc3 39. g3 Kg7 40. g4 Kf6 41. Kg2 Qc6+ 42. Kg3 Qe4 43. h3 a6 44. Nd1 Qe5+ 45. Kf3 Qd5+ 0-1

[Event "Kiel Cup U20"]
[Site "Kiel"]
[Date "2012.10.05"]
[Round "4"]
[White "Birkhahn, Mattis"]
[Black "Rieper, Julian"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1695"]
[BlackElo "1553"]
[PlyCount "61"]
[EventDate "2012.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Nf6 3. Nf3 e6 4. g3 c5 5. Bg2 Nc6 6. 0-0 Be7 7. d3 0-0 8. Re1 Bd7 9. e4 Rc8 10. Nbd2 a6 11. exd5 exd5 12. d4 h6 13. dxc5 Bxc5 14. Ne5 Nxe5 15. Rxe5 Bxf2+ 16. Kxf2 Ng4+ 17. Kf1 Qb6 18. Re2 Ne3+ 19. Rxe3 Qxe3 20. Bxd5 Rfd8 21. Qh5 Bh3+ 22. Qxh3 Qxd2 23. Qg4 Qg5 24. Qxg5 hxg5 25. c4 b5 26. Ke2 Rxd5 27. cxd5 Rc2+ 28. Kd3 Rxb2 29. d6 Kf8 30. Re1 Rxh2 31. d7 1-0

[Event "Kiel Cup U20"]
[Site "Kiel"]
[Date "2012.10.05"]
[Round "5"]
[White "Birkhahn, Mattis"]
[Black "Trede, Rouven Peer"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "1695"]
[PlyCount "27"]
[EventDate "2012.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Nc6 3. e3 e5 4. Bb5 Bd6 5. f4 Qe7 6. Nf3 f6 7. fxe5 Bxe5 8. Nxe5 fxe5 9. Bxc6+ bxc6 10. Qh5+ Kd8 11. Qxe5 Nf6 12. 0-0 Rf8 13. Qxe7+ Kxe7 14. Ba3+ 1-0

[Event "Kiel Cup U20"]
[Site "Kiel"]
[Date "2012.10.05"]
[Round "3"]
[White "Westerhaus, Jonas"]
[Black "Birkhahn, Mattis"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "1759"]
[BlackElo "1695"]
[PlyCount "58"]
[EventDate "2012.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 Bf5 4. Nf3 e6 5. Bg5 Be7 6. e3 Nbd7 7. Be2 h6 8. Bh4 Nb6 9. cxd5 Nbxd5 10. 0-0 Nxc3 11. bxc3 Ne4 12. Bxe7 Qxe7 13. Qb3 0-0 14. c4 c5 15. Rfd1 b6 16. Nd2 cxd4 17. exd4 Rfd8 18. Bf3 Nxd2 19. Rxd2 Rac8 20. a4 Qh4 21. g3 Qg5 22. Rad1 Bg4 23. Bxg4 Qxg4 24. a5 bxa5 25. Qb5 Qg5 26. c5 Rd5 27. Qxa5 Qe7 28. Qa6 Qd7 29. Rc1 Rc6 1/2-1/2

[Event "Kiel Cup U20"]
[Site "Kiel"]
[Date "2012.10.04"]
[Round "2"]
[White "Birkhahn, Mattis"]
[Black "Wanner, Lukas"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "1695"]
[BlackElo "1751"]
[PlyCount "75"]
[EventDate "2012.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 c5 3. e3 Bf5 4. f4 Nf6 5. Nf3 e6 6. Be2 Nc6 7. Nh4 Bg6 8. 0-0 Ne4 9. Nxg6 hxg6 10. d3 Nf6 11. Nd2 Bd6 12. e4 e5 13. fxe5 Nxe5 14. Bf3 Qc7 15. h3 d4 16. Nc4 Nxc4 17. bxc4 0-0-0 18. c3 Nh5 19. Bxh5 gxh5 20. cxd4 cxd4 21. Qa4 Bc5 22. Ba3 Rd7 23. Bxc5 Qxc5 24. Rf5 Qb6 25. Rb5 Qa6 26. Ra5 Qc6 27. Qa3 Rc7 28. Rxa7 Kd7 29. Rf1 f6 30. Rf5 g5 31. Raa5 g4 32. Rad5+ Ke6 33. Qb2 gxh3 34. Qxd4 Rh6 35. Rc5 Qd7 36. Rxf6+ Rxf6 37. Qe5+ Kf7 38. Rxc7 1-0

[Event "Kiel Cup U20"]
[Site "Kiel"]
[Date "2012.10.04"]
[Round "1"]
[White "Kololli, Martin"]
[Black "Birkhahn, Mattis"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1816"]
[BlackElo "1695"]
[PlyCount "73"]
[EventDate "2012.10.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 e6 6. cxd4 d6 7. Bd3 Bd7 8. 0-0 Bc6 9. Nc3 Nxc3 10. bxc3 Nd7 11. Bf4 dxe5 12. Nxe5 Nxe5 13. Bxe5 Bd6 14. f4 Bxe5 15. fxe5 Qd5 16. Qe2 0-0 17. Rf4 b5 18. Raf1 a6 19. Rh4 g6 20. Rf6 Rac8 21. Be4 Qc4 22. Qxc4 bxc4 23. Bxc6 Rxc6 24. d5 Rb6 25. Rxc4 Rb1+ 26. Kf2 exd5 27. Ra4 Rc8 28. Ra3 Rb2+ 29. Kf3 Rc2 30. Rfxa6 R2xc3+ 31. Rxc3 Rxc3+ 32. Ke2 Rc2+ 33. Kf3 Rc3+ 34. Kf4 Rc4+ 35. Kf3 Rc3+ 36. Kg4 Rc4+ 37. Kg3 1/2-1/2

[Event "GER-chT North U16"]
[Site "Berlin"]
[Date "2012.09.09"]
[Round "7.4"]
[White "Birkhahn, Mattis"]
[Black "Schumann, Steffen"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1602"]
[BlackElo "1759"]
[PlyCount "92"]
[EventDate "2012.09.06"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Wildeshausen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 Bd6 5. Na3 Na5 6. Nf3 e4 7. Ng5 Be7 8. Rb1 a6 9. Be2 d5 10. c4 h6 11. Nh3 Bxh3 12. gxh3 Nc6 13. cxd5 Nb4 14. Nc2 Nbxd5 15. Rg1 Qd6 16. Rg3 Rg8 17. Nd4 g6 18. a3 0-0-0 19. b4 Nd7 20. Qc2 f5 21. f4 Bh4 22. Rc1 Bxg3+ 23. hxg3 Kb8 24. Bc4 N7b6 25. b5 a5 26. Bxd5 Nxd5 27. Qa4 Qb6 28. Kf2 c5 29. Nb3 Nc7 30. Rxc5 Rxd2+ 31. Nxd2 Qxc5 32. Qxa5 Qxb5 33. Qc3 Rd8 34. Ke1 Qd3 35. Qxd3 Rxd3 36. Nc4 b5 37. Ne5 Rxe3+ 38. Kf2 Rb3 39. Bd4 g5 40. Nc6+ Ka8 41. Be5 Rxa3 42. Bxc7 Rc3 43. Nd4 Rxc7 44. Nxb5 Rc2+ 45. Ke3 gxf4+ 46. gxf4 Rh2 0-1

[Event "GER-chT North U16"]
[Site "Berlin"]
[Date "2012.09.08"]
[Round "5.4"]
[White "Birkhahn, Mattis"]
[Black "Hartogh, Christian"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "1602"]
[BlackElo "1601"]
[PlyCount "46"]
[EventDate "2012.09.06"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Gottingen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 d5 2. Bb2 Nf6 3. e3 Bf5 4. Nf3 e6 5. c4 c6 6. d4 Bd6 7. Bd3 Bxd3 8. Qxd3 Nbd7 9. Nbd2 Qe7 10. 0-0 0-0 11. Rfe1 Rfe8 12. e4 dxe4 13. Nxe4 Nxe4 14. Rxe4 Nf6 15. Rh4 h6 16. Re1 Qd8 17. Ne5 Qa5 18. Kf1 Rad8 19. Qg3 Qxa2 20. Bc1 Kf8 21. Ng6+ fxg6 22. Qxg6 Ng8 23. Rxh6 gxh6 1/2-1/2

[Event "GER-chT North U16"]
[Site "Berlin"]
[Date "2012.09.08"]
[Round "6.4"]
[White "Schiffmann, Darius"]
[Black "Birkhahn, Mattis"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "1565"]
[BlackElo "1602"]
[PlyCount "51"]
[EventDate "2012.09.06"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Hamburg Koenigsspringer"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. b4 cxb4 3. a3 e5 4. axb4 Nf6 5. c3 Nxe4 6. Qe2 d5 7. d3 Nf6 8. Qxe5+ Qe7 9. Qxe7+ Bxe7 10. Be3 0-0 11. Rxa7 Rxa7 12. Bxa7 Nc6 13. Be3 d4 14. cxd4 Nxb4 15. Nf3 Bf5 16. Ne5 Rd8 17. Be2 Nc2+ 18. Kd2 Nxd4 19. Nc3 Bb4 20. Bxd4 Rxd4 21. Kc2 Nd7 22. Nxd7 Rxd7 23. Ra1 Rc7 24. Ra8+ Bc8 25. Kb3 Bxc3 26. Bg4 1/2-1/2

[Event "GER-chT North U16"]
[Site "Berlin"]
[Date "2012.09.07"]
[Round "3.4"]
[White "Birkhahn, Mattis"]
[Black "Elbracht, Michael"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "1602"]
[BlackElo "1638"]
[PlyCount "126"]
[EventDate "2012.09.06"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. e3 c5 7. Nge2 Na6 8. 0-0 Nc7 9. b3 Rb8 10. Bb2 a6 11. dxc5 dxc5 12. Qxd8 Rxd8 13. Rfd1 Rxd1+ 14. Rxd1 Ne6 15. Nf4 b5 16. Ba1 g5 17. Nfd5 Kf8 18. Ne4 Nxe4 19. Bxg7+ Nxg7 20. Bxe4 Bf5 21. Bxf5 Nxf5 22. Nc7 Rb6 23. cxb5 axb5 24. Rd5 e6 25. Rxc5 Rd6 26. Rxb5 Rd1+ 27. Kg2 Rd2 28. a4 Nxe3+ 29. Kf3 Nf5 30. a5 Nd4+ 31. Ke3 Nxb5 32. Nxe6+ fxe6 33. Kxd2 Ke7 34. Kd3 Kd6 35. Kc4 Kc6 36. b4 g4 37. Kb3 e5 38. Kc4 Nd6+ 39. Kd3 Kd5 40. a6 Nb5 41. Ke3 Na7 42. Kd3 h5 43. Ke3 Nb5 44. f4 gxf3 45. Kxf3 Kd4 46. Ke2 Ke4 47. h3 Na7 48. Kf2 Kd3 49. g4 hxg4 50. hxg4 Ke4 51. Kg3 Nb5 52. Kh4 Kf4 53. Kh5 e4 54. g5 e3 55. g6 e2 56. g7 e1Q 57. g8Q Qh1+ 58. Kg6 Qg2+ 59. Kf7 Nd6+ 60. Kf8 Qa8+ 61. Kg7 Nf5+ 62. Kh8 Qh1+ 63. Qh7 Qa8+ 1/2-1/2

[Event "GER-chT North U16"]
[Site "Berlin"]
[Date "2012.09.07"]
[Round "4.4"]
[White "Schlichter, Lisa"]
[Black "Birkhahn, Mattis"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1436"]
[BlackElo "1602"]
[PlyCount "79"]
[EventDate "2012.09.06"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Lingen"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 g6 3. f4 d6 4. Nf3 Bg7 5. g3 Nc6 6. Bg2 Nf6 7. 0-0 0-0 8. d3 Bd7 9. Nh4 Ng4 10. Ne2 Qb6 11. Kh1 c4 12. Qe1 Nb4 13. Qd2 cxd3 14. cxd3 Nf2+ 15. Kg1 Nbxd3 16. Qe3 Nxc1 17. Kxf2 Qxe3+ 18. Kxe3 Nxe2 19. Kxe2 Bb5+ 20. Ke3 Bxf1 21. Bxf1 Rac8 22. Bd3 Rc7 23. Rb1 Rfc8 24. Kd2 Rc5 25. Nf3 d5 26. exd5 Rxd5 27. Ke3 Rcd8 28. Bc2 Kf8 29. Ke4 f5+ 30. Ke3 e5 31. fxe5 Bxe5 32. Ng5 R8d7 33. Nf3 Kg7 34. a3 Kf6 35. Ke2 f4 36. Kf2 fxg3+ 37. hxg3 Rd2+ 38. Nxd2 Rxd2+ 39. Ke3 Rxc2 40. Re1 0-1

[Event "GER-chT North U16"]
[Site "Berlin"]
[Date "2012.09.06"]
[Round "1.4"]
[White "Birkhahn, Mattis"]
[Black "Rothe, Nicola"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "1602"]
[BlackElo "1101"]
[PlyCount "111"]
[EventDate "2012.09.06"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Neubrandenburg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 d5 2. Bb2 Nc6 3. e3 e5 4. Bb5 a6 5. Bxc6+ bxc6 6. Bxe5 f6 7. Bb2 Bd6 8. Nf3 Bg4 9. d3 Ne7 10. Nbd2 0-0 11. h3 Bh5 12. 0-0 c5 13. c4 Be5 14. Qc2 Bxb2 15. Qxb2 Rb8 16. Rac1 dxc4 17. dxc4 Qd6 18. Rfd1 Rbd8 19. Qa1 Nc6 20. Ne4 Qe7 21. Rxd8 Rxd8 22. Ng3 Bxf3 23. gxf3 Qe6 24. Kg2 Rd2 25. Ne4 Rd7 26. Nxc5 Qe7 27. Nxd7 Qxd7 28. Rd1 Qe8 29. Qb1 Qh5 30. Qe4 Ne5 31. Rd8+ Kf7 32. f4 Ke7 33. Rd5 c6 34. Rxe5+ fxe5 35. Qxe5+ Qxe5 36. fxe5 Ke6 37. f4 g6 38. Kf3 a5 39. Ke4 c5 40. Kf3 h5 41. e4 Ke7 42. Kg3 Ke6 43. Kh4 Ke7 44. Kg5 Kf7 45. f5 gxf5 46. exf5 Kg7 47. Kxh5 Kf7 48. Kg5 a4 49. bxa4 Kg7 50. a5 Kf7 51. a6 Kg7 52. a7 Kf7 53. a8Q Ke7 54. Qb7+ Kd8 55. Kf6 Ke8 56. Qe7# 1-0

[Event "GER-chT North U16"]
[Site "Berlin"]
[Date "2012.09.06"]
[Round "2.4"]
[White "Teschke, Max"]
[Black "Birkhahn, Mattis"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1651"]
[BlackElo "1602"]
[PlyCount "44"]
[EventDate "2012.09.06"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Baumschulenweg"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Be2 0-0 8. Qd2 d5 9. exd5 Nxd5 10. Nxc6 bxc6 11. Bd4 e5 12. Bc5 Re8 13. Ne4 Qh4 14. Bf3 Bh6 15. Qd1 Ba6 16. Nd6 Red8 17. Bxd5 cxd5 18. Qxd5 Rxd6 19. Bxd6 Rd8 20. Rd1 Rxd6 21. Qa8+ Kg7 22. Rxd6 Qb4+ 0-1

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.05.01"]
[Round "9.1"]
[White "Birkhahn, Mattis"]
[Black "Hopson, Kevin Mike"]
[Result "1-0"]
[ECO "E67"]
[WhiteElo "1323"]
[BlackElo "1741"]
[PlyCount "31"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. Nf3 Nbd7 7. 0-0 e5 8. dxe5 dxe5 9. Be3 c6 10. Qd6 Re8 11. Rfd1 Bf8 12. Qd2 Ng4 13. Bh3 Nxe3 14. Qxe3 f6 15. Ne4 Qe7 16. Bxd7 1-0

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.04.30"]
[Round "8.5"]
[White "Marx, Inga"]
[Black "Birkhahn, Mattis"]
[Result "1/2-1/2"]
[ECO "B73"]
[WhiteElo "1773"]
[BlackElo "1323"]
[PlyCount "60"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. 0-0 0-0 9. Kh1 d5 10. exd5 Nxd5 11. Nxd5 Qxd5 12. Bf3 Qd7 13. Nxc6 bxc6 14. Qxd7 Bxd7 15. Rad1 Bf5 16. Bxc6 Rac8 17. Bd7 Rxc2 18. Bxf5 gxf5 19. Rd7 Rxb2 20. Rxa7 e6 21. Rc1 h5 22. g3 Rd8 23. Rcc7 Bd4 24. Bxd4 Rxd4 25. Rxf7 Rxf2 26. Kg1 Rc2 27. Rfd7 Rxd7 28. Rxd7 Rxa2 29. Re7 Re2 30. h4 f4 1/2-1/2

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.04.29"]
[Round "7.2"]
[White "Birkhahn, Mattis"]
[Black "Lengler, Tim"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "1323"]
[BlackElo "1637"]
[PlyCount "45"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 g6 5. e3 Bg7 6. Nge2 d6 7. d4 cxd4 8. exd4 Bg4 9. 0-0 Qd7 10. b3 Bh3 11. Bb2 Bxg2 12. Kxg2 0-0 13. Re1 d5 14. Rb1 dxc4 15. bxc4 b6 16. c5 Nd5 17. Qb3 Nxc3 18. Bxc3 Nxd4 19. Nxd4 Bxd4 20. Bxd4 Qxd4 21. cxb6 axb6 22. Rxe7 Qd6 23. Rbe1 1/2-1/2

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.04.28"]
[Round "5.3"]
[White "Birkhahn, Mattis"]
[Black "Kossinz, Alex"]
[Result "1/2-1/2"]
[ECO "E72"]
[WhiteElo "1323"]
[BlackElo "1667"]
[PlyCount "65"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. d4 d6 6. e4 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 Nbd7 10. 0-0 a5 11. Qc2 h6 12. f4 Ng4 13. h3 Qb6+ 14. Kh1 Ne3 15. Bxe3 Qxe3 16. Rf3 Qb6 17. f5 g5 18. g4 Nf6 19. Ng3 Bd7 20. Bf1 Qc5 21. Qf2 Rfc8 22. Qxc5 Rxc5 23. Rf2 b5 24. a3 Rac8 25. Kg2 b4 26. axb4 axb4 27. Na4 Ra5 28. b3 Bxa4 29. Rxa4 Rxa4 30. bxa4 b3 31. Bd3 Nd7 32. Rb2 Nc5 33. Bb5 1/2-1/2

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.04.28"]
[Round "6.4"]
[White "Powierski, Emil"]
[Black "Birkhahn, Mattis"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2000"]
[BlackElo "1323"]
[PlyCount "41"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[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 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 Nf6 13. Bc4 c5 14. Be3 Qxd2+ 15. Rxd2 Bb7 16. Na4 Rac8 17. Nxc5 Rc7 18. Bb3 e6 19. Nxb7 Rxb7 20. Rhd1 Rfb8 21. Rd8+ 1-0

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.04.27"]
[Round "4.3"]
[White "Funk, Moritz"]
[Black "Birkhahn, Mattis"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "1653"]
[BlackElo "1323"]
[PlyCount "144"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. d3 Nc6 6. f4 Nf6 7. Nf3 0-0 8. 0-0 Bd7 9. Be3 Qc8 10. Nh4 Ng4 11. Bf2 Nxf2 12. Kxf2 Bg4 13. Bf3 Bd4+ 14. Ke1 Bh3 15. Rh1 Rb8 16. Bg2 Bxg2 17. Nxg2 b5 18. Rb1 Qa6 19. Ne2 Qxa2 20. Nxd4 Nxd4 21. c3 Nc6 22. Ne3 b4 23. c4 Qa6 24. b3 Nd4 25. Nc2 Nxc2+ 26. Qxc2 Qc6 27. Ra1 Ra8 28. Kf2 a5 29. Ra4 Ra6 30. Rha1 Rfa8 31. Qa2 Qd7 32. Qe2 Qe6 33. Rc1 h5 34. h4 Kf8 35. Kg2 Ke8 36. Rf1 Kd7 37. Qb2 Qf6 38. Qxf6 exf6 39. Rf2 Ke6 40. Kf3 R6a7 41. Rfa2 f5 42. Re2 fxe4+ 43. Rxe4+ Kf6 44. Re2 Re7 45. Rxe7 Kxe7 46. Ke4 Ke6 47. d4 f5+ 48. Kd3 Kd7 49. d5 Kc7 50. Ke3 Kb6 51. Kd2 Re8 52. Ra2 Re4 53. Ra4 g5 54. hxg5 h4 55. gxh4 Rxf4 56. h5 Rg4 57. g6 Rg5 58. Ra1 Rxh5 59. Rg1 Rh8 60. g7 Rg8 61. Rg6 Kc7 62. Rg5 Kd7 63. Rxf5 Rxg7 64. Rf2 Ke8 65. Re2+ Re7 66. Rf2 Kd7 67. Rf3 Kc7 68. Rf8 Rd7 69. Ra8 Kb6 70. Rb8+ Rb7 71. Rd8 Kc7 72. Ra8 Kb6 1/2-1/2

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.04.26"]
[Round "3.4"]
[White "Birkhahn, Mattis"]
[Black "Dieball, Cai"]
[Result "1/2-1/2"]
[ECO "A26"]
[WhiteElo "1323"]
[BlackElo "1836"]
[PlyCount "37"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. d3 0-0 7. 0-0 e5 8. Bd2 Nc6 9. Rb1 h6 10. b4 Be6 11. Ne1 d5 12. cxd5 Nxd5 13. a3 Kh7 14. Nc2 Qd7 15. Ne3 Nxe3 16. fxe3 Rae8 17. Rc1 g5 18. Na4 Qf7 19. Nc5 1/2-1/2

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.04.26"]
[Round "2.2"]
[White "Polert, Annika"]
[Black "Birkhahn, Mattis"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "1718"]
[BlackElo "1323"]
[PlyCount "65"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nf3 Nc6 5. Nc3 e5 6. d3 Nge7 7. Rb1 0-0 8. Bd2 h6 9. Qc1 Kh7 10. h4 h5 11. Ng5+ Kg8 12. Nge4 d6 13. Bh6 Nf5 14. Bxg7 Kxg7 15. a3 Nfd4 16. b4 cxb4 17. axb4 Bg4 18. f3 Be6 19. Kf2 Qb6 20. c5 dxc5 21. bxc5 Qc7 22. g4 hxg4 23. h5 Rh8 24. h6+ Kf8 25. fxg4 Bxg4 26. h7 Nf5 27. Qg5 Qe7 28. Qxg4 Ncd4 29. Qg5 Qxg5 30. Nxg5 f6 31. Nge4 Rb8 32. Nxf6 Kg7 33. Nd7 1-0

[Event "Schleswig Holstein-ch U16"]
[Site "Neumuenster"]
[Date "2011.04.25"]
[Round "1.5"]
[White "Birkhahn, Mattis"]
[Black "Pommerenke, Birger"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "1323"]
[BlackElo "1736"]
[PlyCount "39"]
[EventDate "2011.04.25"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nc6 3. Bg2 Nf6 4. Nc3 d6 5. Nh3 g6 6. Nf4 Bg7 7. 0-0 0-0 8. a3 a6 9. Rb1 e5 10. Nfd5 Nxd5 11. Nxd5 Ne7 12. b4 Nxd5 13. Bxd5 Rb8 14. d3 b5 15. Be3 cxb4 16. Ba7 Bh3 17. Re1 Rc8 18. cxb5 axb5 19. Rxb4 Qa5 20. Be3 1/2-1/2

[Event "Schleswig Holstein-ch U14 Vormeister"]
[Site "Neumuenster"]
[Date "2010.04.11"]
[Round "9"]
[White "Otto, Maximilian"]
[Black "Birkhahn, Mattis"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1160"]
[BlackElo "1086"]
[PlyCount "68"]
[EventDate "2010.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. d3 Nf6 5. Bg2 0-0 6. f4 d6 7. Nf3 Nc6 8. 0-0 a6 9. Qe1 Re8 10. Bd2 b5 11. h3 Bb7 12. g4 Qc7 13. Qh4 Nd4 14. Ne1 Qb6 15. Qf2 a5 16. Ne2 Nxe2+ 17. Qxe2 b4 18. Qf2 Nd7 19. c3 Rec8 20. Nf3 c4 21. Qxb6 Nxb6 22. Ne1 bxc3 23. bxc3 cxd3 24. Rb1 Nc4 25. Rf2 Nxd2 26. Rxd2 Bxc3 27. Rxd3 Ba6 28. Rdd1 Bxe1 29. Rxe1 Rc2 30. Ra1 Rb8 31. Rec1 Rbb2 32. a3 Rxg2+ 33. Kh1 Rh2+ 34. Kg1 Rbg2# 0-1

[Event "Schleswig Holstein-ch U14 Vormeister"]
[Site "Neumuenster"]
[Date "2010.04.10"]
[Round "8"]
[White "Birkhahn, Mattis"]
[Black "Dreessen, Jakob"]
[Result "1-0"]
[ECO "C05"]
[WhiteElo "1086"]
[BlackElo "1046"]
[PlyCount "107"]
[EventDate "2010.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Ne2 Nb6 6. Nf3 c5 7. Be3 cxd4 8. Nexd4 Bd7 9. Bd3 Qc7 10. 0-0 Be7 11. Qd2 0-0 12. Rfe1 Nc6 13. Nxc6 Qxc6 14. Bg5 Bxg5 15. Qxg5 f5 16. exf6 Rxf6 17. Re2 Raf8 18. Rae1 h6 19. Qg3 Na4 20. Ne5 Qc7 21. c3 Bc8 22. Bb1 Qb6 23. Qd3 Rf5 24. g4 Rxe5 25. Qh7+ Kf7 26. Rxe5 Ke7 27. Rf5 Rf7 28. Rxf7+ Kxf7 29. Qg6+ Ke7 30. Qxg7+ Kd6 31. Qf8+ Kc7 32. Qe7+ Kb8 33. Qb4 Qxb4 34. cxb4 Nxb2 35. Rc1 d4 36. Kf1 b6 37. h4 Ba6+ 38. Ke1 Nd3+ 39. Bxd3 Bxd3 40. g5 hxg5 41. hxg5 Bg6 42. Rc6 Bf5 43. Kd2 Kb7 44. Rd6 Kc7 45. Rxd4 Kc6 46. Ke3 a5 47. bxa5 bxa5 48. a3 Kc5 49. Ra4 Kb5 50. Rf4 Bg6 51. Rf6 Bf5 52. Rxf5+ exf5 53. Kf4 Kc6 54. g6 1-0

[Event "Schleswig Holstein-ch U14 Vormeister"]
[Site "Neumuenster"]
[Date "2010.04.08"]
[Round "6"]
[White "Birkhahn, Mattis"]
[Black "Haye, Robert"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "1086"]
[BlackElo "1200"]
[PlyCount "48"]
[EventDate "2010.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3 d6 7. Be2 Be6 8. 0-0 Be7 9. Bg5 a6 10. Qd2 Qc7 11. Bxf6 Bxf6 12. Ng5 0-0 13. Rad1 Bxg5 14. Qxg5 Nd4 15. Rd2 f5 16. Bd3 h6 17. Qh5 f4 18. Nd5 Qd8 19. Bc4 Bf7 20. Qd1 f3 21. Rxd4 exd4 22. Qxf3 Kh8 23. Qd3 b5 24. Bb3 Bxd5 1/2-1/2

[Event "Schleswig Holstein-ch U14 Vormeister"]
[Site "Neumuenster"]
[Date "2010.04.08"]
[Round "5"]
[White "Hedrich, Jonas"]
[Black "Birkhahn, Mattis"]
[Result "1/2-1/2"]
[ECO "B06"]
[BlackElo "1086"]
[PlyCount "48"]
[EventDate "2010.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. f4 d6 4. Nf3 Nd7 5. c4 Nb6 6. Nc3 c5 7. d5 Nf6 8. Bd3 Nfd7 9. 0-0 e5 10. Qe1 a6 11. fxe5 Nxe5 12. Nxe5 Bxe5 13. Bf4 Bxf4 14. Rxf4 Nd7 15. Qf2 Ne5 16. Be2 g5 17. Rf6 Bg4 18. Rf1 Bxe2 19. Qxe2 Qe7 20. h3 Kd7 21. b3 h5 22. Nd1 g4 23. Ne3 gxh3 24. gxh3 Rag8+ 1/2-1/2

[Event "Schleswig Holstein-ch U14 Vormeister"]
[Site "Neumuenster"]
[Date "2010.04.07"]
[Round "4"]
[White "Mieck, Jale"]
[Black "Birkhahn, Mattis"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "1242"]
[BlackElo "1086"]
[PlyCount "80"]
[EventDate "2010.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Be3 Nc6 5. c3 cxd4 6. Nxd4 Nf6 7. f3 0-0 8. Nd2 d5 9. Nxc6 bxc6 10. e5 Ne8 11. f4 f6 12. exf6 exf6 13. Bd3 Nd6 14. 0-0 Bf5 15. Nb3 Bxd3 16. Qxd3 Ne4 17. f5 Qd7 18. fxg6 hxg6 19. Nc5 Nxc5 20. Bxc5 Rfb8 21. Qxg6 Qf7 22. Qxf7+ Kxf7 23. b4 Kg6 24. Rae1 Re8 25. Rxe8 Rxe8 26. Bxa7 Ra8 27. Bd4 Rxa2 28. h3 Rd2 29. g4 Rd3 30. Kg2 Kg5 31. Rf5+ Kg6 32. Rf3 Rd2+ 33. Kg3 Re2 34. h4 Re6 35. Rf5 Bf8 36. h5+ Kf7 37. g5 Be7 38. gxf6 Rxf6 39. Bxf6 Bxf6 40. Kf4 Ke6 1-0

[Event "Schleswig Holstein-ch U14 Vormeister"]
[Site "Neumuenster"]
[Date "2010.04.06"]
[Round "3"]
[White "Birkhahn, Mattis"]
[Black "Werwitzke, Jasper"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "1086"]
[BlackElo "1282"]
[PlyCount "57"]
[EventDate "2010.04.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Bb4 4. c3 Be7 5. Bd3 Nc6 6. Ne2 dxe4 7. Bxe4 Bd7 8. Nf3 Nf6 9. Bc2 0-0 10. Qd3 g6 11. Bh6 Re8 12. h4 Bf8 13. Bxf8 Rxf8 14. h5 Ne7 15. Ne5 Bc6 16. hxg6 hxg6 17. Qh3 Nh5 18. Nxc6 bxc6 19. g4 Nd5 20. gxh5 g5 21. h6 Qf6 22. Qg3 Rac8 23. 0-0-0 Kh8 24. Rdg1 Rg8 25. Kb1 Nf4 26. Nxf4 gxf4 27. Qg7+ Rxg7 28. hxg7+ Kg8 29. Rh8# 1-0

