[Event "GER-chT Christmas U16 Lasker"]
[Site "Playchess.com INT"]
[Date "2020.12.28"]
[Round "4.1"]
[White "Artukovic, Benjamin"]
[Black "Maas, Kolja"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1358"]
[BlackElo "1559"]
[PlyCount "42"]
[EventDate "2020.12.28"]
[EventType "team-swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]
[WhiteTeam "Weisse Dame"]
[BlackTeam "Luebeck II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 Nbd7 6. Be2 b6 7. Nbd2 Bb7 8. c3 c5 9. 0-0 0-0 10. Qb3 e5 11. Bh2 Qe7 12. Rad1 exd4 13. cxd4 cxd4 14. Nxd4 Nc5 15. Qa3 Nd5 16. Bf3 Be5 17. Nc4 Rfd8 18. Nb5 Qe6 19. Nc7 Nxc7 20. Nxe5 dxe5 21. Bxb7 Nxb7 0-1

[Event "GER-chT Christmas U16 Lasker"]
[Site "Playchess.com INT"]
[Date "2020.12.28"]
[Round "6.1"]
[White "Henzchen, Vinzenz"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "C34"]
[WhiteElo "1462"]
[BlackElo "1559"]
[PlyCount "55"]
[EventDate "2020.12.28"]
[EventType "team-swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]
[WhiteTeam "Bischofswerda"]
[BlackTeam "Luebeck II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Bc4 b6 5. 0-0 Bb7 6. d4 Qe7 7. Bxf4 0-0-0 8. e5 f6 9. Re1 Qb4 10. Bb3 fxe5 11. c3 Qb5 12. Nxe5 Nxe5 13. Rxe5 Qc6 14. Bd5 Qf6 15. Bg5 Qg6 16. Bxb7+ Kxb7 17. Bxd8 Bd6 18. Qf3+ c6 19. Rf5 Nf6 20. Bxf6 gxf6 21. Rxf6 Qc2 22. Rxd6 Qc1+ 23. Qf1 Qe3+ 24. Kh1 Rf8 25. Qg1 Qe7 26. Rh6 Qg7 27. Rh3 h5 28. Nd2 1-0

[Event "GER-chT Christmas U16 Lasker"]
[Site "Playchess.com INT"]
[Date "2020.12.28"]
[Round "5.1"]
[White "Maas, Kolja"]
[Black "Doll, Rebecca"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "1559"]
[BlackElo "1762"]
[PlyCount "59"]
[EventDate "2020.12.28"]
[EventType "team-swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]
[WhiteTeam "Luebeck II"]
[BlackTeam "Baden-Baden II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nc5 7. Bxc6 dxc6 8. Nxe5 Be7 9. d4 Nd7 10. Nc3 Nf6 11. Bg5 0-0 12. Ne4 Bf5 13. Ng3 Be6 14. h3 h6 15. Bf4 Nd5 16. Bc1 Bg5 17. c4 Nb6 18. b3 Bxc1 19. Rxc1 a5 20. f4 Qh4 21. Qf3 a4 22. Re4 Bd7 23. c5 axb3 24. axb3 Qd8 25. cxb6 Be6 26. bxc7 Qxc7 27. Re2 Bd5 28. Qxd5 Ra1 29. Qc4 b5 30. Qc3 1-0

[Event "GER-chT Christmas U16 Lasker"]
[Site "Playchess.com INT"]
[Date "2020.12.28"]
[Round "1.1"]
[White "Maas, Kolja"]
[Black "Koll, Linus"]
[Result "0-1"]
[ECO "B72"]
[WhiteElo "1559"]
[BlackElo "1963"]
[PlyCount "128"]
[EventDate "2020.12.28"]
[EventType "team-swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]
[WhiteTeam "Luebeck II"]
[BlackTeam "Karlsruhe"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bd3 Bg7 7. Be3 0-0 8. 0-0 Nc6 9. Qd2 Ng4 10. Bb5 Nxe3 11. fxe3 Bd7 12. Rf3 a6 13. Nxc6 bxc6 14. Bc4 Qa5 15. Raf1 Be8 16. a3 Rd8 17. Qf2 d5 18. exd5 cxd5 19. b4 Qc7 20. Nxd5 Qxc4 21. Nxe7+ Kh8 22. Rf4 Qe6 23. Qh4 g5 24. Qxg5 f6 25. Qc5 Qd6 26. Qxd6 Rxd6 27. Rd4 Re6 28. Nf5 Bg6 29. Nxg7 Kxg7 30. Rd7+ Rf7 31. Rfd1 Bxc2 32. Rxf7+ Kxf7 33. Rd7+ Kg6 34. Kf2 Bf5 35. Ra7 Rc6 36. Kf3 Bd3 37. g4 h5 38. h3 Bf1 39. gxh5+ Kxh5 40. Rh7+ Kg6 41. Ra7 Bxh3 42. Ke4 Bg2+ 43. Kd4 Kf5 44. a4 Rd6+ 45. Kc5 Rc6+ 46. Kd4 Ke6 47. b5 axb5 48. axb5 Rb6 49. Kc5 Rb8 50. b6 Ke5 51. Re7+ Kf5 52. Rc7 Bf3 53. Re7 Rb7 54. Kb5 Rxe7 55. Ka6 Rxe3 56. b7 Ra3+ 57. Kb6 Rb3+ 58. Ka6 Bxb7+ 59. Ka5 Bc8 60. Ka4 Rb7 61. Ka5 Ke5 62. Ka4 Kd5 63. Ka5 Kc4 64. Ka4 Ra7# 0-1

[Event "GER-chT Christmas U16 Lasker"]
[Site "Playchess.com INT"]
[Date "2020.12.28"]
[Round "7.1"]
[White "Maas, Kolja"]
[Black "Pougin, Elias"]
[Result "0-1"]
[ECO "B95"]
[WhiteElo "1559"]
[BlackElo "1838"]
[PlyCount "91"]
[EventDate "2020.12.28"]
[EventType "team-swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]
[WhiteTeam "Luebeck II"]
[BlackTeam "Gern SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Bd3 Be7 8. 0-0 Nbd7 9. Re1 0-0 10. Qe2 Ne5 11. f4 Nxd3 12. cxd3 Qb6 13. Qf2 e5 14. fxe5 dxe5 15. Nf5 Qxf2+ 16. Kxf2 Ng4+ 17. Kg3 Bxg5 18. Kxg4 Bd2 19. Re2 Bxc3 20. bxc3 g6 21. h4 gxf5+ 22. exf5 f6 23. Rb1 b5 24. d4 exd4 25. cxd4 Bd7 26. Kf4 Rfe8 27. Rc2 Rac8 28. Rbc1 Rxc2 29. Rxc2 Rc8 30. Rxc8+ Bxc8 31. g4 h6 32. Ke4 Bb7+ 33. d5 Kf7 34. Kd4 Ke7 35. Kc5 Kd7 36. a3 Kc7 37. g5 hxg5 38. h5 Bc8 39. d6+ Kd8 40. Kb6 Bxf5 41. Kxa6 g4 42. Kxb5 g3 43. a4 g2 44. a5 g1Q 45. a6 Bd3+ 46. Kc6 0-1

[Event "GER-chT Christmas U16 Lasker"]
[Site "Playchess.com INT"]
[Date "2020.12.28"]
[Round "3.1"]
[White "Maas, Kolja"]
[Black "Ramien, Hannah"]
[Result "1-0"]
[ECO "C79"]
[WhiteElo "1559"]
[BlackElo "1396"]
[PlyCount "71"]
[EventDate "2020.12.28"]
[EventType "team-swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]
[WhiteTeam "Luebeck II"]
[BlackTeam "Koeln Porz II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 d6 6. d4 exd4 7. Nxd4 Bd7 8. Nxc6 Bxc6 9. Bxc6+ bxc6 10. 0-0 Be7 11. Qd3 0-0 12. Bg5 h6 13. Bh4 Qd7 14. Rae1 Rfe8 15. Re3 Ng4 16. Rh3 Qe6 17. Bxe7 Qxe7 18. f4 Rab8 19. b3 Nf6 20. Re1 Qd7 21. Qxa6 Ra8 22. Qd3 c5 23. Qg3 Kh7 24. Qd3 Kh8 25. a4 Rad8 26. Nd5 Nxd5 27. Qxd5 c6 28. Qd2 Re7 29. f5 Rde8 30. Qf4 d5 31. e5 Qc7 32. f6 Re6 33. Ree3 Qd8 34. Rxh6+ gxh6 35. Qxh6+ Kg8 36. Qg7# 1-0

[Event "GER-chT Christmas U16 Lasker"]
[Site "Playchess.com INT"]
[Date "2020.12.28"]
[Round "2.1"]
[White "Sickmann, Lisa"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1510"]
[BlackElo "1559"]
[PlyCount "97"]
[EventDate "2020.12.28"]
[EventType "team-swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Luebeck II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 7. 0-0 Bd6 8. Re1 0-0 9. c3 Re8 10. Qb3 b6 11. Be3 c5 12. dxc5 bxc5 13. Qb7 Nd7 14. Qxd5 Qf6 15. Nbd2 Nb6 16. Nxe4 Bxe4 17. Qxe4 Rxe4 18. Bxe4 Re8 19. Bg5 Qe6 20. Bxh7+ Kxh7 21. Rxe6 Rxe6 22. Rd1 Nc4 23. b3 Ne5 24. Nxe5 Bxe5 25. c4 Ra6 26. Rd2 Bd4 27. Be3 Bc3 28. Rc2 Bb4 29. f3 Rd6 30. Rc1 Kg6 31. Bf4 Rd4 32. g3 Kf5 33. Kf2 g5 34. Be3 Rd6 35. Ke2 f6 36. Rd1 Ra6 37. a4 Re6 38. Rd5+ Kg6 39. Kd3 Rc6 40. g4 a5 41. Rd7 f5 42. gxf5+ Kxf5 43. Rd5+ Kg6 44. Rxg5+ Kf6 45. Rd5 Ke6 46. h4 Rc7 47. h5 Rh7 48. f4 Kf6 49. Bxc5 1-0

[Event "Vellmar op 11th"]
[Site "Vellmar"]
[Date "2019.07.07"]
[Round "6"]
[White "Maas, Kolja"]
[Black "Wachsmann, Elmar"]
[Result "0-1"]
[ECO "C84"]
[WhiteElo "1571"]
[BlackElo "1784"]
[PlyCount "72"]
[EventDate "2019.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Nc3 b5 7. Bb3 d6 8. Ng5 0-0 9. d3 Nd4 10. Bxf7+ Rxf7 11. Nxf7 Kxf7 12. Ne2 Bg4 13. f3 Nxe2+ 14. Qxe2 Bc8 15. g4 Kg8 16. Be3 d5 17. exd5 Nxd5 18. Bf2 Bd6 19. Bg3 Nf4 20. Qe4 Rb8 21. Bxf4 Bb7 22. Qf5 exf4 23. Qe6+ Kf8 24. Qf5+ Kg8 25. Qe6+ Kh8 26. Rae1 Bc5+ 27. Kg2 Be3 28. Rxe3 fxe3 29. Qxe3 Qf6 30. c3 Rf8 31. Rf2 h6 32. Kg3 Qf7 33. b3 Re8 34. Qf4 Qxf4+ 35. Kxf4 g5+ 36. Kf5 Kg7 0-1

[Event "Vellmar op 11th"]
[Site "Vellmar"]
[Date "2019.07.07"]
[Round "7"]
[White "Meyer, Marcel"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "1796"]
[BlackElo "1571"]
[PlyCount "65"]
[EventDate "2019.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 Nbd7 6. Be2 e5 7. 0-0 0-0 8. d5 Ne8 9. b4 a5 10. bxa5 Rxa5 11. Be3 Nc5 12. Qb1 f5 13. Ng5 f4 14. Bxc5 Qxg5 15. Bb4 Ra8 16. Qd1 h5 17. c5 b6 18. cxb6 c5 19. dxc6 Ba6 20. f3 Qd8 21. b7 Qb6+ 22. Kh1 Rb8 23. Bxa6 Qxa6 24. Bxd6 Nxd6 25. Qxd6 Rxb7 26. Qd5+ Rbf7 27. Nb5 Kh7 28. Rfc1 Re7 29. Qc5 Bf6 30. Nc3 Ree8 31. Nd5 Bd8 32. Rc2 Qa5 33. Rac1 1-0

[Event "Vellmar op 11th"]
[Site "Vellmar"]
[Date "2019.07.06"]
[Round "4"]
[White "Maas, Kolja"]
[Black "Warter, Simon"]
[Result "1-0"]
[ECO "C72"]
[WhiteElo "1571"]
[BlackElo "1565"]
[PlyCount "111"]
[EventDate "2019.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 Bd7 6. 0-0 exd4 7. Nxd4 Nge7 8. Nc3 g6 9. Bg5 Bg7 10. Nxc6 bxc6 11. Qf3 0-0 12. Rad1 Re8 13. Rfe1 Qb8 14. e5 d5 15. Bb3 h6 16. Bf6 Qc8 17. Rd4 Nf5 18. Rdd1 Bxf6 19. exf6 Nd6 20. h4 Kh7 21. Re3 Nf5 22. Red3 Nd6 23. Nxd5 cxd5 24. Bxd5 Rb8 25. Bxf7 Rf8 26. Bb3 Be6 27. Re1 Bxb3 28. axb3 Qf5 29. Re7+ Rf7 30. Rxf7+ Nxf7 31. Qc6 Qe5 32. Rd7 Rf8 33. g3 g5 34. Rxc7 Kg6 35. Re7 Qxb2 36. Qe4+ Kxf6 37. Re6+ Kg7 38. Qg6+ Kh8 39. Rf6 Qc3 40. Rxa6 Qg7 41. Qe4 Rc8 42. Rg6 Qe5 43. Rxh6+ Kg8 44. Rg6+ Kf8 45. Qb4+ Qc5 46. Qxc5+ Rxc5 47. c4 Ne5 48. Rb6 Ke7 49. Rb5 Kd6 50. Rxc5 Kxc5 51. f4 gxf4 52. gxf4 Nf7 53. Kf2 Kd4 54. Kf3 Kc3 55. Ke4 Kxb3 56. Kd5 1-0

[Event "Vellmar op 11th"]
[Site "Vellmar"]
[Date "2019.07.06"]
[Round "5"]
[White "Ziegenfuss, Larissa"]
[Black "Maas, Kolja"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1756"]
[BlackElo "1571"]
[PlyCount "90"]
[EventDate "2019.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Nc6 7. Bd3 Bg4 8. h3 Bh5 9. g4 Bg6 10. Be3 Qd7 11. Qd2 0-0-0 12. 0-0-0 f5 13. Bb5 fxg4 14. hxg4 Be4 15. Nd4 Bxh1 16. Rxh1 Re8 17. Nxc6 bxc6 18. Ba6+ Kd8 19. Qd4 c5 20. Qd5 c6 21. Qb3 Qc7 22. Be2 g6 23. c4 Bg7 24. Qd3 Kd7 25. Bf3 Qb6 26. Qb3 Rb8 27. Qxb6 axb6 28. c3 Rbf8 29. Be4 Be5 30. Kd2 b5 31. cxb5 cxb5 32. Kc2 Ke6 33. Rd1 Bf4 34. Bxf4 Rxf4 35. f3 Rd8 36. Rd5 Rh8 37. Rd2 h5 38. Rh2 h4 39. Rh3 g5 40. Bf5+ Rxf5 41. gxf5+ Kxf5 42. Kd3 g4 43. fxg4+ Kxg4 44. Re3 h3 45. Re7 h2 0-1

[Event "Vellmar op 11th"]
[Site "Vellmar"]
[Date "2019.07.05"]
[Round "2"]
[White "Maas, Kolja"]
[Black "Rouditser, Benjamin"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "1571"]
[BlackElo "1815"]
[PlyCount "82"]
[EventDate "2019.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bf4 Qb6 8. b3 e6 9. c3 Ngf6 10. Bd3 Ba3 11. Qc2 Nd5 12. Bd2 0-0 13. 0-0 Rfc8 14. c4 Nb4 15. Bxb4 Qxb4 16. Ng5 Nf8 17. f4 Qd6 18. Ne2 Bc5 19. Nf3 Bxd3 20. Qxd3 Rd8 21. Qe3 Bb4 22. a3 Ba5 23. b4 Bc7 24. Ng5 a5 25. Ne4 Qe7 26. Nc5 axb4 27. axb4 b6 28. Na6 Bd6 29. c5 Bc7 30. Nxc7 Qxc7 31. Ra3 bxc5 32. bxc5 Rxa3 33. Qxa3 Qb7 34. Ra1 Ng6 35. Qa6 Qb2 36. Ra2 Qb1+ 37. Kf2 Qe4 38. Qb6 Rf8 39. Qc7 Nh4 40. Ra6 Qxg2+ 41. Ke3 Nf5+ 0-1

[Event "Vellmar op 11th"]
[Site "Vellmar"]
[Date "2019.07.05"]
[Round "3"]
[White "Schulze, Nick"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1775"]
[BlackElo "1571"]
[PlyCount "27"]
[EventDate "2019.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Bd7 7. Be3 Nc6 8. Qd2 g6 9. 0-0-0 Bg7 10. Bc4 Qe7 11. Bg5 f6 12. Rhe1 Ne5 13. Nxe5 0-0-0 14. Nxd7 1-0

[Event "Vellmar op 11th"]
[Site "Vellmar"]
[Date "2019.07.04"]
[Round "1"]
[White "Ahlers, Knut"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1854"]
[BlackElo "1571"]
[PlyCount "45"]
[EventDate "2019.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Nc6 7. Be3 Bg4 8. Be2 Be7 9. Qd3 Qd7 10. 0-0-0 Bf5 11. Qb5 0-0-0 12. Qa4 b6 13. Bb5 Kb7 14. Ne5 dxe5 15. Rxd7 Bxd7 16. Rd1 Be8 17. Rxd8 Bxd8 18. Ba6+ Kb8 19. Qg4 Ne7 20. Qxg7 Rg8 21. Qxe5 Rxg2 22. Bg5 Rg1+ 23. Kd2 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.30"]
[Round "7.4"]
[White "Maas, Kolja"]
[Black "Trimpin, Fynn"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1573"]
[BlackElo "1190"]
[PlyCount "59"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Freiburg Zaehringen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 d6 5. Nc3 Be7 6. d4 a6 7. Bxc6+ bxc6 8. dxe5 dxe5 9. Nxe5 Bb7 10. Bf4 Qc8 11. Qe2 0-0 12. Rad1 Bd6 13. Nd3 Bxf4 14. Nxf4 Re8 15. Rfe1 Re7 16. e5 Nd7 17. e6 fxe6 18. Nxe6 Nf8 19. Qc4 Nxe6 20. Rd3 Qe8 21. Rde3 Bc8 22. Ne4 Kh8 23. Nc5 a5 24. Nxe6 Ba6 25. Qg4 Kg8 26. Nxc7 Rxe3 27. Rxe3 Qf8 28. Nxa8 Qxa8 29. Qe6+ Kf8 30. Rf3# 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.29"]
[Round "5.4"]
[White "Maas, Kolja"]
[Black "Borodaev, Roman"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1573"]
[BlackElo "1330"]
[PlyCount "18"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Karlsruhe SF"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 g6 6. Nxc6 bxc6 7. e5 Ng8 8. Bc4 Bg7 9. Qf3 a6 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.29"]
[Round "6.4"]
[White "Weidemann, Jakob"]
[Black "Maas, Kolja"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1533"]
[BlackElo "1573"]
[PlyCount "41"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]
[WhiteTeam "Muenster"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Nc6 7. Be3 Bg4 8. Be2 Be7 9. 0-0 0-0 10. Nd4 Bxe2 11. Qxe2 Qd7 12. Nxc6 Qxc6 13. Bxa7 Rxa7 14. Qxe7 Re8 15. Qh4 Ra4 16. Qh3 h6 17. Rfe1 Rxe1+ 18. Rxe1 Rxa2 19. Qc8+ Kh7 20. Qf5+ Kg8 21. Qc8+ 1/2-1/2

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.28"]
[Round "4.4"]
[White "Brinkschroeder, Josh"]
[Black "Maas, Kolja"]
[Result "0-1"]
[ECO "E93"]
[WhiteElo "1198"]
[BlackElo "1573"]
[PlyCount "80"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]
[WhiteTeam "Paderborn"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 Nbd7 7. h3 e5 8. d5 b6 9. Be3 Qe7 10. Qc2 Bb7 11. 0-0-0 a5 12. Kb1 Nc5 13. Nd2 c6 14. g4 cxd5 15. exd5 Bc8 16. g5 Bf5 17. Qxf5 gxf5 18. gxf6 Qxf6 19. Rhg1 f4 20. Bxc5 bxc5 21. Nde4 Qe7 22. Nb5 Rad8 23. h4 h6 24. h5 f5 25. Nec3 e4 26. Bf1 e3 27. fxe3 fxe3 28. Re1 Kh7 29. Rg3 f4 30. Rg6 Rf6 31. Rg4 Kh8 32. Bd3 Qe5 33. Ne4 Rf7 34. Nbc3 Qxh5 35. Reg1 f3 36. R4g3 e2 37. Nf2 Bd4 38. Nce4 Qh2 39. Nh3 Bxg1 40. Nxg1 e1Q# 0-1

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.28"]
[Round "3.4"]
[White "Maas, Kolja"]
[Black "Kopvillem, Mikhail"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1573"]
[BlackElo "1089"]
[PlyCount "75"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Anhalt"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bb4 5. a3 Ba5 6. b4 Bb6 7. Bb2 d6 8. Nc3 Bg4 9. Nd5 Nxe4 10. Nxb6 axb6 11. d4 0-0 12. Bxc6 bxc6 13. dxe5 Bxf3 14. gxf3 Ng5 15. exd6 cxd6 16. Kh1 Kh8 17. Rg1 Rg8 18. Rg3 c5 19. Qd2 f6 20. Rag1 Ra7 21. Qf4 Qe7 22. h4 Ne6 23. Qd2 Rd7 24. Re1 Qf7 25. Reg1 Qe7 26. f4 Qf7 27. f5 Nc7 28. Qe2 Rf8 29. Qg4 Ne8 30. h5 h6 31. c4 cxb4 32. axb4 d5 33. cxd5 Qxd5+ 34. Qf3 Qc4 35. Rg4 Qd5 36. R4g3 Qc4 37. Kh2 Qxb4 38. Ba3 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.27"]
[Round "2.4"]
[White "Guenther, Fabian"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "1485"]
[BlackElo "1573"]
[PlyCount "145"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]
[WhiteTeam "Dresden TU"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 Nbd7 6. Nf3 c6 7. b4 0-0 8. Bd3 e5 9. d5 Qc7 10. Qb3 b6 11. 0-0 c5 12. b5 h6 13. Bxf6 Nxf6 14. a4 Bg4 15. Nd2 Nh5 16. Be2 Qd7 17. Bxg4 Qxg4 18. h3 Qd7 19. Ne2 f5 20. f3 f4 21. Ra3 Qe7 22. Rfa1 Qg5 23. Nf1 Kh7 24. a5 Rab8 25. Qa2 Rf7 26. axb6 axb6 27. Ra7 Rxa7 28. Qxa7 Qd8 29. Nc3 Nf6 30. Ra6 Ne8 31. Na4 Nc7 32. Nxc5 bxc5 33. Rc6 Na8 34. Nd2 Rb6 35. Nb3 Rb8 36. Na5 Qf8 37. b6 Nxb6 38. Rxb6 Ra8 39. Qc7 Rxa5 40. Rxd6 Ra1+ 41. Kh2 Ra7 42. Qxc5 Rd7 43. Rc6 h5 44. Qxf8 Bxf8 45. c5 Kg7 46. g3 fxg3+ 47. Kxg3 g5 48. h4 Be7 49. hxg5 Bxg5 50. Re6 Bf6 51. c6 Rc7 52. f4 exf4+ 53. Kxf4 Kf7 54. e5 Bd8 55. Rh6 h4 56. Rh7+ Ke8 57. Rxc7 Bxc7 58. d6 Ba5 59. Kg4 Kd8 60. Kxh4 Bc3 61. e6 Be5 62. c7+ Kc8 63. e7 Bxd6 64. e8Q+ Kxc7 65. Qf7+ Kc6 66. Kg4 Kc5 67. Kf3 Be5 68. Ke4 Bc3 69. Qd5+ Kb4 70. Kd3 Bb2 71. Qc4+ Ka3 72. Qb5 Ka2 73. Kc2 1-0

[Event "GER-chT U14"]
[Site "Magdeburg"]
[Date "2018.12.27"]
[Round "1.4"]
[White "Maas, Kolja"]
[Black "Butusov, Maxim"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "1573"]
[BlackElo "957"]
[PlyCount "71"]
[EventDate "2018.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Brackel"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 a6 5. Ba4 b5 6. Bb3 Na5 7. Nxe5 Nxb3 8. axb3 g6 9. Qf3 f5 10. exf5 gxf5 11. Qxa8 Bg7 12. Re1 Bxe5 13. Rxe5 d6 14. Re3 f4 15. Rf3 Rf8 16. Qe4 d5 17. Qxh7 Bg4 18. Rc3 Qd6 19. h3 Bf5 20. Qh5+ Bg6 21. Qd1 b4 22. Rf3 Be4 23. d4 Bxf3 24. Qxf3 Nc6 25. Rxa6 Nxd4 26. Qh5+ Kd7 27. Rxd6+ Kxd6 28. Qh6+ Ke7 29. Qg7+ Ke8 30. Qxd4 Rg8 31. Bxf4 c6 32. Qe5+ Kf8 33. Qf6+ Ke8 34. Bd6 Kd7 35. Qe7+ Kc8 36. Qc7# 1-0

[Event "Kiel op 30th"]
[Site "Kiel"]
[Date "2017.08.04"]
[Round "9.37"]
[White "Maas, Kolja"]
[Black "Boyens, Birger"]
[Result "0-1"]
[ECO "C70"]
[WhiteElo "1527"]
[BlackElo "1996"]
[PlyCount "128"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Na5 6. 0-0 d6 7. d4 Nxb3 8. axb3 f6 9. c4 Bb7 10. d5 Ne7 11. Nc3 b4 12. Ne2 c6 13. Ng3 cxd5 14. cxd5 Qd7 15. Nh4 g6 16. Be3 Bg7 17. Qd2 a5 18. Bh6 0-0 19. Bxg7 Kxg7 20. f4 Qg4 21. Nf3 exf4 22. Ne2 g5 23. Nfd4 Rfc8 24. Ne6+ Kh8 25. N2xf4 gxf4 26. Rxf4 Qg6 27. Qd4 Ng8 28. Rf3 Rc2 29. Rg3 Qh6 30. Rd1 Rc1 31. Rh3 Rxd1+ 32. Qxd1 Qg6 33. Rh4 Rc8 34. h3 Qg3 35. Rg4 Qe3+ 36. Kh2 Nh6 37. Rg3 Rc1 38. Rxe3 Rxd1 39. Nd8 Ba6 40. Rf3 Rf1 41. Nc6 Nf7 42. Rxf1 Bxf1 43. Kg3 Ne5 44. Nxa5 Ba6 45. Nc6 Nxc6 46. dxc6 Kg7 47. Kf4 Kf7 48. Kf5 Bc8+ 49. Kf4 Ke7 50. Ke3 Be6 51. g4 Kd8 52. Kf4 h6 53. Ke3 Kc7 54. Kd3 Kxc6 55. Kd4 Bxb3 56. Kd3 Kc5 57. Ke3 Bf7 58. Kd3 Be6 59. Ke3 Kc4 60. Kd2 Kb3 61. Kc1 Ka2 62. Kc2 Bc4 63. b3 Bxb3+ 64. Kd3 Be6 0-1

[Event "Kiel op 30th"]
[Site "Kiel"]
[Date "2017.08.03"]
[Round "8.47"]
[White "Samuelson, Bernd"]
[Black "Maas, Kolja"]
[Result "0-1"]
[ECO "C42"]
[BlackElo "1527"]
[PlyCount "56"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. 0-0 0-0 8. c4 c6 9. Nbd2 Bf5 10. Qc2 Nxd2 11. Bxd2 Bxd3 12. Qxd3 Nd7 13. Rfe1 b6 14. Rac1 h6 15. cxd5 cxd5 16. Qb3 Nf6 17. Bb4 Bxb4 18. Qxb4 Rc8 19. h3 Ne4 20. Nd2 Rxc1 21. Rxc1 a5 22. Qxf8+ Kxf8 23. Nxe4 dxe4 24. b3 Qxd4 25. Rc8+ Ke7 26. Rc7+ Ke6 27. Rc6+ Kd5 28. Rc7 Qa1+ 0-1

[Event "Kiel op 30th"]
[Site "Kiel"]
[Date "2017.08.02"]
[Round "7"]
[White "Eberhardt, Michael"]
[Black "Maas, Kolja"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "1812"]
[BlackElo "1527"]
[PlyCount "119"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 Nc6 3. g3 e5 4. Bg2 Bc5 5. e3 0-0 6. Nc3 d6 7. h3 Ne8 8. Na4 f5 9. Nxc5 dxc5 10. 0-0 e4 11. Ne1 Nf6 12. b3 Nb4 13. Bb2 Nd3 14. Nxd3 Qxd3 15. Re1 c6 16. Bf1 Qd6 17. d4 Be6 18. Qe2 b6 19. Rad1 Qe7 20. Bg2 Qf7 21. dxc5 bxc5 22. Rd2 Ne8 23. Red1 a5 24. Ba3 Qe7 25. Rb2 Rf7 26. Qd2 Bd7 27. Qc3 Nc7 28. Rbd2 Be8 29. Rd6 Na6 30. Bb2 Nb4 31. R6d2 Nxa2 32. Qe5 Nb4 33. Qxe7 Rxe7 34. Rd8 Raa7 35. Rc8 Kf7 36. Rdd8 Nd3 37. Bc3 a4 38. bxa4 Rxa4 39. Ra8 Rxc4 40. Ra3 g6 41. Bf1 Rd7 42. Rxd7+ Bxd7 43. Bxd3 exd3 44. Bd2 Ke6 45. Rxd3 Rc2 46. Ba5 c4 47. Rc3 Rxc3 48. Bxc3 Kd5 49. f3 g5 50. g4 f4 51. e4+ Ke6 52. Kh2 c5 53. h4 Kf7 54. hxg5 Kg6 55. Bf6 h6 56. Kg2 hxg5 57. Bc3 Kf7 58. Kf2 Ke6 59. Ke2 Ba4 60. Bg7 0-1

[Event "Kiel op 30th"]
[Site "Kiel"]
[Date "2017.08.01"]
[Round "6"]
[White "Maas, Kolja"]
[Black "Henschen, Patrick"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "1527"]
[BlackElo "1720"]
[PlyCount "130"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 Bxd3 8. Qxd3 Ngf6 9. 0-0 e6 10. c4 Be7 11. a3 a5 12. Bf4 0-0 13. h3 a4 14. Rad1 Qa5 15. Rfe1 Rad8 16. Qd2 Qa6 17. Qc2 Rfe8 18. Re2 Rc8 19. Red2 b5 20. c5 Nd5 21. Be3 N7f6 22. Ne2 Bd8 23. Qd3 Bc7 24. Ne5 Ne7 25. Bf4 Qb7 26. Qf3 Nfd5 27. Nc3 Nxf4 28. Qxf4 f6 29. Qe3 fxe5 30. dxe5 Rcd8 31. Rxd8 Rxd8 32. Rxd8+ Bxd8 33. Ne4 Nd5 34. Qe2 Qe7 35. Nd6 Bc7 36. Qg4 g6 37. h4 Bd8 38. h5 Kg7 39. f4 Ne3 40. h6+ Kg8 41. Qh3 Nf5 42. g3 Qf8 43. Qg2 Nxd6 44. cxd6 Bb6+ 45. Kf1 Qe8 46. Ke2 Qc8 47. Qh1 Kf7 48. Qh4 Bd8 49. Qh1 Qa6 50. g4 b4+ 51. Kd1 Qd3+ 52. Kc1 Qc4+ 53. Kd1 Qb3+ 54. Ke1 Qc2 55. Qf3 b3 56. f5 gxf5 57. gxf5 Bh4+ 58. Kf1 Qxf5 59. Ke2 Qxf3+ 60. Kxf3 c5 61. Ke4 Bf2 62. Kd3 Bd4 63. Kc4 Bxb2 64. d7 Ke7 65. Kxc5 Bxe5 0-1

[Event "Kiel op 30th"]
[Site "Kiel"]
[Date "2017.07.30"]
[Round "3"]
[White "Maas, Kolja"]
[Black "Olde, Henning"]
[Result "0-1"]
[ECO "B55"]
[WhiteElo "1527"]
[PlyCount "82"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bb5+ Bd7 6. Nc3 a6 7. Bxd7+ Nbxd7 8. f4 Rc8 9. 0-0 e6 10. Be3 b5 11. a3 Be7 12. Qf3 0-0 13. g4 e5 14. Nf5 exf4 15. Bxf4 Ne5 16. Bxe5 dxe5 17. Nxe7+ Qxe7 18. g5 Nd7 19. Qg3 Rc6 20. b4 Rg6 21. h4 Nb6 22. Rf5 Nc4 23. h5 Re6 24. Nd5 Qa7+ 25. Kh2 Qd4 26. Rb1 Nd2 27. Rd1 Nxe4 28. Qg4 Qc4 29. Ne3 Qc6 30. Rd5 Nc3 31. Rc5 Qd6 32. Kh3 Qd4 33. Qg3 Ne4 34. c3 Qxc5 35. bxc5 Nxg3 36. Kxg3 Rc8 37. Ng4 Rxc5 38. Rf3 e4 39. Re3 Rxg5 40. Kh4 h6 41. Nf2 f5 0-1

[Event "Kiel op 30th"]
[Site "Kiel"]
[Date "2017.07.30"]
[Round "4"]
[White "Schmieder, Kerstin"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "1674"]
[BlackElo "1527"]
[PlyCount "75"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 Nfd7 5. Nf3 c5 6. Be3 cxd4 7. Bxd4 Nc6 8. Bb5 a6 9. Ba4 b5 10. Bb3 Nxd4 11. Qxd4 Bc5 12. Qf4 h6 13. 0-0 g5 14. Qg4 h5 15. Qxg5 Qxg5 16. Nxg5 Nxe5 17. Rfe1 Ng4 18. Re2 Rg8 19. Nf3 Kd7 20. h3 Nxf2 21. Rxf2 Bxf2+ 22. Kxf2 Bb7 23. Ne2 f6 24. Nf4 Rh8 25. Re1 Rae8 26. c3 Kd6 27. Rd1 a5 28. Rd2 a4 29. Bd1 e5 30. Ng6 Rhg8 31. Nfh4 e4 32. Ke3 Rc8 33. Bxh5 a3 34. Nf5+ Ke6 35. Nd4+ Kd7 36. Bg4+ Kd8 37. Bxc8 Kxc8 38. Ne7+ 1-0

[Event "Kiel op 30th"]
[Site "Kiel"]
[Date "2017.07.29"]
[Round "1"]
[White "Maas, Kolja"]
[Black "Jordan, Christian"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1527"]
[BlackElo "2182"]
[PlyCount "58"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 b6 3. f4 d5 4. e5 Ba6 5. Bxa6 Nxa6 6. a3 Qd7 7. Qd3 Nb8 8. Ne2 c5 9. c4 dxc4 10. Qxc4 Nc6 11. Be3 cxd4 12. Nxd4 Rc8 13. Nxc6 Rxc6 14. Qe4 Nh6 15. 0-0 Ng4 16. b4 Nxe3 17. Qxe3 a5 18. Qe4 Be7 19. Ra2 0-0 20. Rd2 Qc8 21. b5 Rc4 22. Qf3 Qc5+ 23. Kh1 Qxb5 24. Nc3 Qc6 25. Qxc6 Rxc6 26. Nb5 Rc5 27. Nd6 Rd8 28. Rfd1 f6 29. exf6 Bxd6 0-1

[Event "Kiel op 30th"]
[Site "Kiel"]
[Date "2017.07.29"]
[Round "2"]
[White "Straetker, Sebastian"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1887"]
[BlackElo "1527"]
[PlyCount "76"]
[EventDate "2017.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 Nc6 3. d4 d5 4. Bg2 g6 5. 0-0 Bg7 6. c4 dxc4 7. Qa4 0-0 8. Qxc4 Be6 9. Qa4 Nd5 10. e3 a6 11. Qd1 Bf5 12. Nc3 Nxc3 13. bxc3 Rb8 14. Re1 Be4 15. Nd2 Bxg2 16. Kxg2 e5 17. Nb3 exd4 18. exd4 Qd5+ 19. Qf3 Qc4 20. Bf4 Rfc8 21. Nc5 b6 22. Nd7 Ra8 23. Bg5 h6 24. Bf6 Bxf6 25. Nxf6+ Kg7 26. d5 Na5 27. Re7 Rf8 28. Nd7 Rae8 29. Rae1 Nb7 30. Rxe8 Rxe8 31. Rxe8 f5 32. Re7+ Kg8 33. Ne5 Qxa2 34. Nxg6 Nd6 35. Rxc7 a5 36. Ne7+ Kh8 37. Nxf5 Nxf5 38. Qxf5 Qe2 1-0

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.21"]
[Round "11"]
[White "Maas, Kolja"]
[Black "Ewerhardy, Moritz"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "1432"]
[BlackElo "1387"]
[PlyCount "148"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[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 Bd7 10. Nb3 Ne5 11. h3 Rc8 12. Kb1 a6 13. Be2 b5 14. g4 Nc4 15. Bxc4 bxc4 16. Nd4 a5 17. Nde2 a4 18. a3 Qc7 19. e5 Ne8 20. exd6 Nxd6 21. Bh6 Rfd8 22. Bxg7 Kxg7 23. Nd5 Qb7 24. Nxe7 c3 25. Qd4+ Kf8 26. Nxg6+ hxg6 27. Qxd6+ Kg8 28. Qb4 Qxf3 29. Nxc3 Be6 30. Rxd8+ Rxd8 31. Qe4 Qg3 32. Qxa4 Rb8 33. Qd4 Qg2 34. Qg1 Qc6 35. Qe1 Qc5 36. Kc1 Qb6 37. b3 Bxb3 38. cxb3 Qxb3 39. Qe5 Qb2+ 40. Kd1 Rd8+ 41. Ke1 Qc1+ 42. Kf2 Qxh1 43. Qg3 Re8 44. Qd3 Qh2+ 45. Kf1 Qh1+ 46. Kf2 Re1 47. a4 Qg1+ 48. Kf3 Qf1+ 49. Qxf1 Rxf1+ 50. Kg2 Ra1 51. Ne4 Rxa4 52. Ng3 Ra2+ 53. Kh1 Kg7 54. Nf1 Kf6 55. Ne3 Kg5 56. Ng2 f5 57. gxf5 gxf5 58. Kg1 f4 59. Kf1 f3 60. Ne1 Kf4 61. h4 Kg3 62. h5 Ra1 63. h6 f2 64. Ke2 Rxe1+ 65. Kd2 Re8 66. h7 f1Q 67. h8Q Rxh8 68. Kc3 Qf3+ 69. Kd4 Rh4+ 70. Ke5 Re4+ 71. Kd5 Qd3+ 72. Kc5 Rc4+ 73. Kb5 Qb3+ 74. Ka6 Ra4# 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.20"]
[Round "10"]
[White "Gallasch, Jonas"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "1564"]
[BlackElo "1432"]
[PlyCount "61"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Bg4 7. Nc3 c6 8. Qc2 Nfd7 9. Rd1 Bxf3 10. Bxf3 e5 11. d5 cxd5 12. Bxd5 Nc6 13. Bxc6 bxc6 14. Rxd6 Qc7 15. Qd1 Rad8 16. Be3 Nb6 17. c5 Nc4 18. Rxd8 Rxd8 19. Qc1 Nxe3 20. Qxe3 Qa5 21. Ne4 f5 22. Nd6 Qb4 23. Rb1 e4 24. a3 Qb8 25. b4 Rd7 26. Qb3+ Kf8 27. Qa4 Rc7 28. b5 cxb5 29. Rxb5 Qd8 30. Qb3 Rd7 31. Rb8 1-0

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.20"]
[Round "9"]
[White "Krause, Marc"]
[Black "Maas, Kolja"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "1537"]
[BlackElo "1432"]
[PlyCount "49"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 Nfd7 7. Qd2 f6 8. Be3 e5 9. d5 a5 10. f3 Nc5 11. Bd3 Nxd3+ 12. Qxd3 Na6 13. Nge2 Nc5 14. Qd2 f5 15. 0-0 f4 16. Bf2 b6 17. b3 h5 18. Nc1 h4 19. Nd3 h3 20. g3 Bh6 21. g4 Qg5 22. Bxc5 bxc5 23. Qf2 Qf6 24. Nb5 Rf7 25. Kh1 1/2-1/2

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.19"]
[Round "8"]
[White "Maas, Kolja"]
[Black "Riemann, Jonas"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "1432"]
[BlackElo "1368"]
[PlyCount "106"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Ngf3 c5 6. c3 Nc6 7. Bd3 cxd4 8. cxd4 Be7 9. 0-0 Nb6 10. a3 a5 11. Re1 0-0 12. Qc2 h6 13. Nf1 Bd7 14. Ng3 Rc8 15. Qe2 a4 16. Qe3 Bg5 17. Nxg5 hxg5 18. Ne2 f5 19. Qxg5 Qxg5 20. Bxg5 Kf7 21. h4 Na5 22. h5 Nbc4 23. Bxc4 Nxc4 24. Rab1 Bb5 25. Nc3 Bd7 26. h6 gxh6 27. Bxh6 Rg8 28. Be3 Rg4 29. Ne2 Nxe3 30. fxe3 Rc2 31. Nf4 Rg8 32. Re2 Rgc8 33. Rxc2 Rxc2 34. Kh2 Bb5 35. Kg3 Bc4 36. Rh1 Rxb2 37. Rh7+ Kg8 38. Re7 b5 39. Rxe6 b4 40. axb4 a3 41. Rg6+ Kf8 42. Rf6+ Ke7 43. Ng6+ Kd7 44. e6+ Kc7 45. e7 Bb5 46. Ra6 a2 47. Ra3 Kd7 48. Kf3 Ke6 49. Ra7 Kf7 50. Nh8+ Ke8 51. Ng6 Kf7 52. Nh8+ Ke8 53. Ng6 Kf7 1/2-1/2

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.18"]
[Round "6"]
[White "Maas, Kolja"]
[Black "Schille, Hannes"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "1432"]
[BlackElo "1601"]
[PlyCount "110"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d5 3. exd5 Nf6 4. c4 e6 5. dxe6 Bxe6 6. d3 Bd6 7. Nc3 a6 8. Be2 0-0 9. 0-0 h6 10. Be3 Qe7 11. b3 Ng4 12. g3 Nxe3 13. fxe3 Bh3 14. Nd5 Qd8 15. Rf2 Be6 16. Bf1 Re8 17. Nf4 Bxf4 18. exf4 Bg4 19. h3 Bxf3 20. Qxf3 Nc6 21. Qg4 Qd4 22. Rc1 Re7 23. f5 Qxg4 24. hxg4 Re3 25. Kg2 Ne5 26. Re2 Nxg4 27. Rxe3 Nxe3+ 28. Kf2 Nxf5 29. Bg2 Nd6 30. Re1 Kf8 31. a4 Re8 32. Rxe8+ Kxe8 33. Ke3 b6 34. g4 f5 35. Kf4 fxg4 36. Kxg4 g6 37. Bf3 Ke7 38. Kf4 Kf6 39. Ke3 g5 40. Bd1 Ke5 41. Kf3 h5 42. Ke3 Nf5+ 43. Kf2 g4 44. Be2 Kf4 45. Bd1 h4 46. a5 bxa5 47. b4 axb4 48. d4 Nxd4 49. Kg2 b3 50. Bf3 gxf3+ 51. Kf1 Ke3 52. Kg1 b2 53. Kh2 b1Q 54. Kh3 Qg6 55. Kxh4 Kf4 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.18"]
[Round "7"]
[White "Stahnecker, Hagen"]
[Black "Maas, Kolja"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1316"]
[BlackElo "1432"]
[PlyCount "144"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. 0-0 Be7 8. c4 0-0 9. Re1 Bb4 10. Bd2 Nxd2 11. Nbxd2 dxc4 12. Bxc4 Nxd4 13. Re4 Nxf3+ 14. Nxf3 Qxd1+ 15. Rxd1 Bd6 16. Rde1 Bf5 17. Rh4 Rae8 18. Rd1 Be6 19. Bd3 h6 20. b3 Rd8 21. Bc2 Be7 22. Rhd4 Rxd4 23. Nxd4 c6 24. Nxe6 fxe6 25. Rd7 Bc5 26. Rd2 b5 27. Be4 Bb4 28. Rd7 a6 29. g3 Rc8 30. Ra7 a5 31. Ra6 c5 32. Rxe6 c4 33. bxc4 bxc4 34. Bd5 Kf8 35. Rc6 Rxc6 36. Bxc6 c3 37. Be4 Ke7 38. Kf1 Kd6 39. Ke2 Ke5 40. Ke3 Bc5+ 41. Kf3 Kd4 42. Bc2 Kc4 43. Ke2 Kb4 44. a4 Ka3 45. f3 Bd4 46. Kd3 Kb2 47. h3 Bf2 48. g4 g5 49. Bd1 Ba7 50. Bc2 Bd4 51. Bd1 Bf6 52. Bc2 Ka3 53. Kc4 Be5 54. Bd1 Kb2 55. Kd3 Kc1 56. Bc2 Kb2 57. Bd1 Ka2 58. Bc2 Ka3 59. Kc4 Kb2 60. Kd3 Bf4 61. Bd1 Bd2 62. Bc2 Kc1 63. Bb3 Kb1 64. Bd1 Kc1 65. Bb3 Bf4 66. Bc2 Kb2 67. Bd1 Bd6 68. Bc2 Bb4 69. Bd1 Kc1 70. Bc2 Kb2 71. Bd1 Bd6 72. Bc2 Bb4 1/2-1/2

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.17"]
[Round "5"]
[White "Kanzow, Alexander"]
[Black "Maas, Kolja"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "1421"]
[BlackElo "1432"]
[PlyCount "99"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Qd5 5. Bd3 Be7 6. Nf3 Nf6 7. Nxf6+ Bxf6 8. c4 Qd8 9. Be3 0-0 10. 0-0 Nd7 11. Qc2 g6 12. Bh6 Re8 13. Rfe1 c5 14. d5 Nb6 15. dxe6 Bxe6 16. Rad1 Qc7 17. Re2 Bd7 18. Rde1 Rxe2 19. Qxe2 Bg7 20. Bxg7 Kxg7 21. Qe5+ Qxe5 22. Rxe5 Rc8 23. b3 Be6 24. Kf1 Nd7 25. Re3 h6 26. Ke2 b6 27. Nd2 Nf6 28. f3 h5 29. h4 Re8 30. Ne4 Nxe4 31. Bxe4 Rd8 32. Rd3 Rxd3 33. Bxd3 f5 34. f4 Kf6 35. g3 Bd7 36. a4 a5 37. Ke3 Ke6 38. Be2 Bc6 39. Bd3 Bg2 40. Be2 Bh3 41. Bd3 Bg2 42. Be2 Bc6 43. Bd3 Bd7 44. Be2 Kd6 45. Bf3 Be6 46. Be2 Bf7 47. Bd3 Be8 48. Be2 Bc6 49. Bf3 Bd7 50. Be2 1/2-1/2

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.16"]
[Round "3"]
[White "Breitzmann, Sander"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "C15"]
[WhiteElo "1703"]
[BlackElo "1432"]
[PlyCount "53"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Qd5 5. Nc3 Bb4 6. a3 Bxc3+ 7. bxc3 Nc6 8. Nf3 Nf6 9. Bd3 h6 10. a4 0-0 11. 0-0 e5 12. c4 Qd8 13. dxe5 Nd7 14. Bb2 Re8 15. Rb1 Ndxe5 16. Nxe5 Nxe5 17. Bxe5 c6 18. c5 Qg5 19. Bd6 Bg4 20. Qc1 Qd5 21. Qf4 Bc8 22. Bc4 Qh5 23. Rfe1 Rd8 24. h3 g5 25. Qf6 Bd7 26. Re7 a6 27. Bxf7+ 1-0

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.16"]
[Round "4"]
[White "Maas, Kolja"]
[Black "Evering, Soeren"]
[Result "0-1"]
[ECO "C84"]
[WhiteElo "1432"]
[BlackElo "1719"]
[PlyCount "72"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Nc3 b5 7. Bb3 d6 8. h3 Na5 9. d4 exd4 10. Nxd4 c5 11. Ndxb5 axb5 12. Nxb5 Nxb3 13. cxb3 Ba6 14. e5 Bxb5 15. exf6 Bxf6 16. Re1+ Be7 17. Bg5 Ra7 18. a4 Ba6 19. Qd5 0-0 20. Be3 Bb7 21. Qd2 d5 22. Bf4 Bd6 23. Bxd6 Qxd6 24. Rac1 d4 25. Qc2 Rc8 26. b4 c4 27. Qxc4 h6 28. Qb3 Rxc1 29. Rxc1 Ra8 30. b5 Re8 31. f3 Qg3 32. Qd1 Re3 33. Kf1 Bxf3 34. gxf3 Rxf3+ 35. Ke2 Qg2+ 36. Ke1 Rf1# 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.15"]
[Round "1"]
[White "Hassemeier, Mika"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "E86"]
[WhiteElo "1715"]
[BlackElo "1432"]
[PlyCount "109"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 0-0 6. Be3 e5 7. Nge2 c6 8. Qd2 Re8 9. 0-0-0 d5 10. dxe5 Rxe5 11. Bf4 Re8 12. cxd5 cxd5 13. Nxd5 Nxd5 14. Qxd5 Qb6 15. Qd2 Be6 16. Kb1 Nc6 17. Be3 Qa5 18. Qxa5 Nxa5 19. Nd4 Rad8 20. Bb5 Bd7 21. b4 Bxb5 22. Nxb5 a6 23. Nc7 Rxd1+ 24. Rxd1 Rc8 25. Nd5 Nc6 26. Rc1 Re8 27. Bd2 h5 28. a3 Kh7 29. Bg5 Re6 30. Bf4 Bh6 31. Bxh6 Kxh6 32. h3 Ne5 33. Rc7 b5 34. Ka2 Rc6 35. f4 Rxc7 36. Nxc7 Nd3 37. g3 Nf2 38. Nxa6 Nxe4 39. Nc7 Nxg3 40. Nxb5 Ne2 41. a4 Nxf4 42. a5 Nd5 43. Kb3 f5 44. Kc4 Ne7 45. Na7 f4 46. b5 f3 47. Kd3 Nd5 48. b6 Nf4+ 49. Ke3 f2 50. Kxf2 Nd3+ 51. Kg3 Nc5 52. Nc6 g5 53. Nb4 Kg7 54. a6 Ne4+ 55. Kg2 1-0

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2016.05.15"]
[Round "2"]
[White "Maas, Kolja"]
[Black "Popist, Florian"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "1432"]
[BlackElo "1619"]
[PlyCount "103"]
[EventDate "2016.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Bc5 7. Nb3 Be7 8. 0-0 Nf6 9. Be3 b5 10. f4 Bb7 11. e5 Nd5 12. Nxd5 Bxd5 13. Nd2 h6 14. Be4 Bxe4 15. Nxe4 Nc6 16. Nd6+ Bxd6 17. exd6 Qd8 18. f5 e5 19. f6 g6 20. c3 Kf8 21. Qd2 h5 22. Rf3 Qe8 23. Rh3 Qe6 24. Qf2 Kg8 25. Bc5 Rb8 26. b4 Qc4 27. a3 Qe6 28. Rg3 Kh7 29. Rf3 Qc4 30. Qe1 Rhe8 31. Qd1 Re6 32. Rf5 Kg8 33. Rf1 Rbe8 34. Qd2 Kh7 35. h3 Qb3 36. Kh2 Qc4 37. Qg5 Rh8 38. Qe3 Rhe8 39. Qg5 Kg8 40. Qh6 Rxf6 41. Rxf6 Qxc3 42. Raf1 Rf8 43. Rxf7 Rxf7 44. Qxg6+ Rg7 45. Qe8+ Kh7 46. Qxh5+ Kg8 47. Rf3 Qd2 48. Rf2 Qd3 49. Rf3 Qd2 50. Bf2 Qxd6 51. Bc5 Qd2 52. Rf8# 1-0

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2015.12.30"]
[Round "7.4"]
[White "Maas, Kolja"]
[Black "Rapoport, Valerie"]
[Result "1-0"]
[ECO "C66"]
[WhiteElo "1139"]
[BlackElo "1093"]
[PlyCount "83"]
[EventDate "2015.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Ende"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nf6 6. 0-0 Be7 7. Re1 0-0 8. Bxc6 Bxc6 9. dxe5 dxe5 10. Nxe5 Bd7 11. Nxd7 Qxd7 12. Qxd7 Nxd7 13. Bf4 c6 14. Rad1 Nf6 15. g3 Rfe8 16. a3 b5 17. e5 Nh5 18. Bc1 c5 19. g4 b4 20. Nd5 bxa3 21. bxa3 Nf6 22. Nxe7+ Rxe7 23. exf6 Rxe1+ 24. Rxe1 gxf6 25. Bh6 c4 26. Re4 c3 27. Rc4 Re8 28. Kg2 f5 29. gxf5 f6 30. Rxc3 Re5 31. Rc7 Rxf5 32. Rxa7 Rh5 33. Be3 Rh4 34. a4 Kf8 35. a5 Ke8 36. a6 Kd8 37. Rg7 Kc8 38. Rg8+ Kc7 39. a7 Kc6 40. a8Q+ Kb5 41. Qb7+ Kc4 42. Rc8# 1-0

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2015.12.29"]
[Round "6.4"]
[White "Karge, Ole Jannes"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1272"]
[BlackElo "1139"]
[PlyCount "63"]
[EventDate "2015.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Berlin Mattnetz"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. bxc3 Be7 7. d4 d5 8. Bd3 0-0 9. 0-0 Nd7 10. Re1 c5 11. Ba3 Re8 12. Qd2 c4 13. Bxe7 Rxe7 14. Rxe7 Qxe7 15. Re1 Qf6 16. Re8+ Nf8 17. Bxh7+ Kxh7 18. Rxf8 Qe7 19. Ng5+ Kg6 20. Rxf7 Qxg5 21. Rxg7+ Kxg7 22. Qxg5+ Kf7 23. Qxd5+ Ke7 24. f4 a5 25. f5 Kf6 26. Qd8+ Kxf5 27. d5 b5 28. d6 Bb7 29. Qd7+ Kf6 30. Qxb7 Rh8 31. Qe7+ Kg6 32. d7 1-0

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2015.12.29"]
[Round "5.4"]
[White "Westphal, Simon"]
[Black "Maas, Kolja"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1221"]
[BlackElo "1139"]
[PlyCount "101"]
[EventDate "2015.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Leipzig Gruen Weiss"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nxd4 7. Bxd4 Bxd4 8. Qxd4 Qxd4 9. cxd4 Nf6 10. Nc3 0-0 11. Bd3 d6 12. 0-0 c6 13. Rfe1 d5 14. exd5 cxd5 15. Bc2 g6 16. Bb3 Be6 17. Nb5 Rfc8 18. Nd6 Rc7 19. Rac1 Rd7 20. Nb5 a6 21. Nc7 Rc8 22. Nxe6 Rxc1 23. Rxc1 fxe6 24. g3 h5 25. f3 g5 26. Kf1 g4 27. fxg4 Nxg4 28. Kg1 Kf7 29. h3 Ne3 30. Kf2 Nf5 31. Rd1 Kg6 32. Bc2 Kg5 33. Kf3 Rc7 34. Bb3 b5 35. a4 bxa4 36. Bxa4 Rc4 37. h4+ Kf6 38. b3 Rxd4 39. Rxd4 Nxd4+ 40. Kf2 e5 41. b4 Nf5 42. b5 axb5 43. Bxb5 Ng7 44. Bc6 d4 45. Be4 Nf5 46. Kf3 Nd6 47. Bd3 Nf5 48. Be4 Ng7 49. Kf2 Ke6 50. Kf3 Kd6 51. Ke2 1/2-1/2

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2015.12.28"]
[Round "3.4"]
[White "Maas, Kolja"]
[Black "Dunder, Tim"]
[Result "1-0"]
[ECO "B28"]
[WhiteElo "1139"]
[BlackElo "922"]
[PlyCount "71"]
[EventDate "2015.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Hohentuebingen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bg5 Qc7 8. Bd2 Bxc3 9. Bxc3 Nxe4 10. Qd3 Nf6 11. Qg3 Nc6 12. Qxg7 Rg8 13. Qxf6 Rg6 14. Qh8+ Ke7 15. Qxh7 d6 16. Bc4 Be6 17. Bxe6 Rxe6 18. Bd2 d5 19. 0-0 Qd7 20. Nc5 Qe8 21. Nxe6 Kxe6 22. Qh6+ Kd7 23. Rad1 Nd4 24. Bc3 Nxc2 25. Rxd5+ Kc7 26. Qd6+ Kc8 27. Rc5+ Qc6 28. Rxc6+ bxc6 29. Qxc6+ Kd8 30. Qxa8+ Ke7 31. Qb7+ Kf6 32. Qc6+ Ke7 33. Bxe5 Nb4 34. Qd6+ Ke8 35. Bf6 Nd5 36. Qd8# 1-0

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2015.12.28"]
[Round "4.4"]
[White "Maas, Kolja"]
[Black "Pislaru, Marius Alexander"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "1139"]
[BlackElo "1676"]
[PlyCount "80"]
[EventDate "2015.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Porz SG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. Ndf3 Nc6 7. c3 Qb6 8. b3 cxd4 9. cxd4 Bb4+ 10. Kf2 0-0 11. Bb2 f6 12. Kg3 fxe5 13. dxe5 Ne7 14. Bd3 Nf5+ 15. Bxf5 Rxf5 16. Ne2 Nc5 17. Bd4 Ne4+ 18. Kh4 Qd8+ 19. Kg4 Qe8 20. h4 Qg6+ 21. Kh3 Rxf4 22. Kh2 Rg4 23. Rg1 Be7 24. Qe1 Qh6 25. g3 Bd7 26. Kh3 Qh5 27. Nh2 Ng5+ 28. Kg2 Re4 29. g4 Rxg4+ 30. Nxg4 Qxg4+ 31. Kf1 Rf8+ 32. Bf2 Qh3+ 33. Rg2 Nf3 34. Qa5 Bxh4 35. a4 Bxf2 36. Kxf2 Nh4+ 37. Ke1 Nxg2+ 38. Kd2 Qe3+ 39. Kc2 Qxe2+ 40. Qd2 Rc8+ 0-1

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2015.12.27"]
[Round "2.4"]
[White "Grunert, Wilhelm"]
[Black "Maas, Kolja"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "1355"]
[BlackElo "1139"]
[PlyCount "91"]
[EventDate "2015.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Muenchen Suedost"]
[BlackTeam "Luebeck"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 a6 5. Bxc6 dxc6 6. Nxe5 Qd4 7. Nf3 Qd6 8. Re1 Qe6 9. d4 Be7 10. Nc3 0-0 11. Bf4 Bd8 12. Qd2 Nh5 13. Rad1 Qg4 14. Bg3 Nxg3 15. hxg3 Be6 16. d5 cxd5 17. exd5 Bf5 18. Ne5 Qb4 19. b3 Bf6 20. Na4 Qxd2 21. Rxd2 Rfe8 22. Rde2 Bxc2 23. Rxc2 Rxe5 24. Rxe5 Bxe5 25. f4 Bd6 26. Nc5 b6 27. Nb7 Bc5+ 28. Nxc5 bxc5 29. Rxc5 g6 30. Rxc7 Rd8 31. Rc5 Kf8 32. b4 Ke7 33. b5 axb5 34. Rxb5 Ra8 35. Rb2 Kd6 36. Rd2 Ra5 37. Kf2 Rxd5 38. Rxd5+ Kxd5 39. Kf3 f6 40. Kg4 h5+ 41. Kh4 Ke4 42. a4 Kd4 43. g4 hxg4 44. Kxg4 Kc5 45. f5 gxf5+ 46. Kxf5 1-0

[Event "GER-chT U12"]
[Site "Magdeburg"]
[Date "2015.12.27"]
[Round "1.4"]
[White "Maas, Kolja"]
[Black "Petzold, Maik"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "1139"]
[BlackElo "820"]
[PlyCount "103"]
[EventDate "2015.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]
[WhiteTeam "Luebeck"]
[BlackTeam "Dresden TU"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 a6 5. Ba4 Bc5 6. Nxe5 Nxe5 7. d4 Bb4 8. dxe5 Nxe4 9. Qd4 Bxc3+ 10. bxc3 f5 11. e6 Qe7 12. exd7+ Bxd7 13. Bxd7+ Kf8 14. 0-0 Rd8 15. Rd1 c5 16. Qd5 Nf6 17. Qxf5 g6 18. Bh6+ Kf7 19. Qf3 Rxd7 20. Rxd7 Qxd7 21. Bg5 Qe6 22. Qxb7+ Nd7 23. Qf3+ Nf6 24. Rb1 Re8 25. g3 Kg7 26. Rb7+ Nd7 27. Qd3 Qe1+ 28. Kg2 Qe6 29. Rxd7+ Kf8 30. Rd8 Qc6+ 31. Qf3+ Qxf3+ 32. Kxf3 Rxd8 33. Bxd8 c4 34. Ke4 Ke8 35. Bh4 h6 36. Kd4 g5 37. Kxc4 gxh4 38. gxh4 Kd7 39. Kd5 Kc7 40. c4 Kd7 41. c5 Kc7 42. c6 Kc8 43. Kd6 Kd8 44. c7+ Kc8 45. f4 h5 46. f5 a5 47. f6 a4 48. f7 a3 49. f8Q+ Kb7 50. Qb8+ Ka6 51. Kc6 Ka5 52. Qb5# 1-0

