[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2015.12.30"]
[Round "7.4"]
[White "Mikeler, Marcel"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "1873"]
[BlackElo "1791"]
[PlyCount "113"]
[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 "Heilbronn"]
[BlackTeam "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Bd6 7. 0-0 0-0 8. b3 e5 9. cxd5 cxd5 10. dxe5 Nxe5 11. Be2 Nxf3+ 12. Bxf3 Be5 13. Bb2 Bf5 14. Na4 Bxb2 15. Nxb2 Rc8 16. Qd4 Rc2 17. Bd1 Rc6 18. b4 Qc7 19. Bb3 Bc2 20. Nd3 Bxb3 21. axb3 b6 22. b5 Rc3 23. Rfc1 Rc8 24. h3 h6 25. Rxc3 Qxc3 26. Rc1 Qxc1+ 27. Nxc1 Rxc1+ 28. Kh2 Rc7 29. f3 Rd7 30. g4 Kf8 31. Kg3 Ke7 32. Qe5+ Kf8 33. h4 Re7 34. Qc3 Rd7 35. Kf4 Ke7 36. g5 hxg5+ 37. hxg5 Nh5+ 38. Kg4 g6 39. Qe5+ Kf8 40. Qh8+ Ke7 41. f4 Kd6 42. b4 Kc7 43. Qa8 Kd6 44. Qc6+ Ke7 45. f5 d4 46. f6+ Kd8 47. Qa8+ Kc7 48. Qxa7+ Kc8 49. Qa8+ Kc7 50. Qc6+ Kd8 51. Qxb6+ Kc8 52. exd4 Nf4 53. Kxf4 Rb7 54. Qc6+ Kb8 55. Qd6+ Ka8 56. Qd8+ Rb8 57. Qxb8+ 1-0

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2015.12.29"]
[Round "5.4"]
[White "Merker, Konstantin"]
[Black "Hahn, Cedric"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "1791"]
[BlackElo "1817"]
[PlyCount "36"]
[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 "Coswig"]
[BlackTeam "Eppingen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 e5 7. d5 Ne8 8. Bd3 f5 9. 0-0 f4 10. b4 g5 11. c5 h5 12. a4 g4 13. hxg4 hxg4 14. Nh2 Qh4 15. Be2 f3 16. gxf3 Kf7 17. Bg5 Qh3 18. Nxg4 Bxg4 0-1

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2015.12.29"]
[Round "6.4"]
[White "Wagner, Robert"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "1956"]
[BlackElo "1791"]
[PlyCount "115"]
[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 "Forchheim"]
[BlackTeam "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 e5 7. d5 Ne8 8. g4 f5 9. gxf5 gxf5 10. exf5 Bxf5 11. Bd3 Nd7 12. Nge2 Bg4 13. Rg1 Qh4 14. Qd2 Nc5 15. Bc2 e4 16. 0-0-0 Nf6 17. Rg3 Bf3 18. Rdg1 Nh5 19. Rg5 Rf7 20. Bd4 Re8 21. Ng3 Nxg3 22. R5xg3 Ree7 23. Bxg7 Rxg7 24. Qd4 Qh6+ 25. Kb1 Rxg3 26. Rxg3+ Rg7 27. Rxg7+ Qxg7 28. Qxg7+ Kxg7 29. b4 Nd3 30. Bxd3 exd3 31. Kc1 Bh5 32. Kd2 Bg6 33. Nb5 Kf6 34. Nxc7 Ke5 35. Ke3 d2 36. f4+ Kf5 37. Kxd2 Kxf4 38. Nb5 Ke5 39. Nxa7 Kd4 40. Nb5+ Kxc4 41. Nxd6+ Kxb4 42. Nxb7 Kc4 43. d6 Bf5 44. a4 Kd5 45. a5 Kc6 46. a6 Bc8 47. Nc5 Bxa6 48. Nxa6 Kxd6 49. Ke3 Ke5 50. Kf3 Kf5 51. Nc5 Kg5 52. Kg3 Kh5 53. Ne6 Kg6 54. Kg4 Kf6 55. Nf4 Kg7 56. Kg5 Kg8 57. Kh6 Kh8 58. Nh5 1-0

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2015.12.28"]
[Round "3.4"]
[White "Werthmann, Nils"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "1919"]
[BlackElo "1791"]
[PlyCount "89"]
[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 "Potsdam"]
[BlackTeam "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. Nc3 Nf6 3. e5 Nfd7 4. e6 fxe6 5. d4 Nc6 6. Bf4 a6 7. Bd3 Nf6 8. Nf3 Nb4 9. 0-0 Nxd3 10. Qxd3 g6 11. Rfe1 Bg7 12. Ng5 0-0 13. Bg3 Nh5 14. Nxe6 Bxe6 15. Rxe6 Nxg3 16. hxg3 Qd7 17. Rae1 Rf7 18. Nd1 Rc8 19. Qe3 Re8 20. c3 Qa4 21. a3 Kf8 22. Qd3 Qb3 23. g4 Qb5 24. Qe3 Qd7 25. f4 Rf6 26. f5 Rxe6 27. fxe6 Qd6 28. Qf3+ Bf6 29. g5 Kg7 30. gxf6+ exf6 31. Qe3 Re7 32. Nf2 b6 33. Ng4 g5 34. Nh2 c5 35. Nf1 c4 36. Ng3 Kg6 37. Qf3 Qf4 38. Qxf4 gxf4 39. Nf1 h5 40. Kf2 a5 41. a4 f5 42. Kf3 Kg5 43. Nd2 h4 44. Nb1 h3 45. gxh3 1-0

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2015.12.27"]
[Round "2.3"]
[White "Leeb, Simon"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "A72"]
[WhiteElo "2065"]
[BlackElo "1791"]
[PlyCount "77"]
[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 "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 c5 7. d5 e6 8. Nf3 exd5 9. cxd5 Re8 10. 0-0 Qb6 11. Qc2 Nbd7 12. Nd2 a6 13. h3 Qc7 14. a4 Rb8 15. Rfe1 h6 16. Bf4 Ne5 17. Bh2 g5 18. Bf1 Bd7 19. a5 Nh5 20. Ne2 Bb5 21. Ng3 Nxg3 22. Bxg3 c4 23. Re3 Rec8 24. Nf3 Nxf3+ 25. Rxf3 b6 26. axb6 Rxb6 27. Re1 Qc5 28. e5 dxe5 29. Qf5 Rf8 30. h4 gxh4 31. Bxh4 Qxd5 32. Rg3 Kh8 33. Qh5 Qe6 34. f4 e4 35. f5 Qe5 36. Rg4 Qxb2 37. Rexe4 c3 38. f6 Rxf6 39. Bxf6 1-0

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2015.12.27"]
[Round "1.4"]
[White "Streichardt, Niklas"]
[Black "Merker, Konstantin"]
[Result "1/2-1/2"]
[ECO "B02"]
[WhiteElo "1682"]
[BlackElo "1791"]
[PlyCount "90"]
[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 "Erfurt Empor"]
[BlackTeam "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Bc4 Nb6 5. Bb3 Nc6 6. Qf3 e6 7. Nge2 Na5 8. d4 Nxb3 9. axb3 Be7 10. Be3 0-0 11. 0-0 Nd5 12. Ne4 Bd7 13. c4 Nxe3 14. fxe3 Bc6 15. Qf4 f5 16. Nd2 Bd6 17. Qf2 Rf6 18. c5 Be7 19. Nc4 b6 20. Ne5 Bb5 21. b4 a5 22. Qf3 Rc8 23. bxa5 bxc5 24. Nc6 Bxc6 25. Qxc6 e5 26. Qa4 cxd4 27. exd4 e4 28. Qc4+ Kh8 29. Nf4 c6 30. b4 Rd6 31. Rfd1 Bf6 32. Ne2 Rc7 33. Ra4 Rcd7 34. b5 cxb5 35. Qxb5 Bxd4+ 36. Nxd4 Rxd4 37. Raxd4 Rxd4 38. Rxd4 Qxd4+ 39. Kf1 Qd1+ 40. Kf2 Qd2+ 41. Kf1 Qf4+ 42. Ke2 h6 43. Qc5 Qg4+ 44. Ke1 Qg6 45. Qc8+ Kh7 1/2-1/2

[Event "GER-chT U20"]
[Site "Naumburg Saale"]
[Date "2014.12.30"]
[Round "7.4"]
[White "Eigemann, Frederik"]
[Black "Merker, Konstantin"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1957"]
[BlackElo "1663"]
[PlyCount "96"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Porz SG"]
[BlackTeam "Coswig TuS"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. Qd2 d5 6. e5 Qd8 7. f4 c5 8. Nf3 Be7 9. c3 0-0 10. Be2 Nc6 11. 0-0 a6 12. a3 Bd7 13. b4 b6 14. g4 Qe8 15. Bd3 c4 16. Bc2 f6 17. Qg2 fxe5 18. fxe5 Rf4 19. Nbd2 Qf7 20. g5 Qh5 21. h3 Raf8 22. gxh6 Qxh6 23. Nh2 Be8 24. Ng4 Rxf1+ 25. Rxf1 Rxf1+ 26. Kxf1 Qf4+ 27. Qf2 Bg5 28. Qxf4 Bxf4 29. Ke1 Ne7 30. Nf1 Bg6 31. Bd1 Nf5 32. Bf3 Kf7 33. Ke2 Nh4 34. Nfe3 Bd3+ 35. Kf2 Nxf3 36. Kxf3 Bg5 37. Kg3 Bd8 38. Ng2 g5 39. Ne1 Be4 40. Ne3 Kg6 41. Kg4 Be7 42. N1c2 b5 43. Ne1 Bd8 44. N1g2 Bd3 45. Ne1 Be4 46. N1g2 Be7 47. Ne1 Bf8 48. Kg3 Be7 1/2-1/2

[Event "GER-chT U20"]
[Site "Naumburg Saale"]
[Date "2014.12.29"]
[Round "6.4"]
[White "Merker, Konstantin"]
[Black "Schaefer, Nicolas"]
[Result "1-0"]
[ECO "D32"]
[WhiteElo "1663"]
[BlackElo "1497"]
[PlyCount "32"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Coswig TuS"]
[BlackTeam "Saarbruecken"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 c5 2. e3 d5 3. c4 e6 4. Nc3 Nf6 5. Nf3 Bd6 6. dxc5 Bxc5 7. cxd5 exd5 8. Be2 0-0 9. 0-0 Nc6 10. b3 Be6 11. Bb2 a6 12. Rc1 Bd6 13. Nd4 Qc7 14. h3 Bd7 15. Bf3 Ne7 16. Nxd5 Nc6 1-0

[Event "GER-chT U20"]
[Site "Naumburg Saale"]
[Date "2014.12.29"]
[Round "5.4"]
[White "Pham, Tran Phuong Bao"]
[Black "Merker, Konstantin"]
[Result "1/2-1/2"]
[ECO "A24"]
[WhiteElo "1705"]
[BlackElo "1663"]
[PlyCount "108"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Frankfurt TV"]
[BlackTeam "Coswig TuS"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. e4 d6 6. Nge2 e5 7. d3 Nbd7 8. 0-0 Nh5 9. Be3 f5 10. Qd2 Ndf6 11. Bg5 Qe8 12. Rac1 Kh8 13. Nd5 Qf7 14. f4 Nxd5 15. cxd5 exf4 16. Nxf4 Nxf4 17. Bxf4 a5 18. Rc2 b6 19. Rfc1 Ra7 20. Bxd6 cxd6 21. Rxc8 Bd4+ 22. Kh1 Kg7 23. Rxf8 Qxf8 24. b3 fxe4 25. dxe4 Bc5 26. Rf1 Rf7 27. Qc3+ Kg8 28. Rxf7 Qxf7 29. Bh3 Kf8 30. Qd3 Kg7 31. Qe2 Qf6 32. Kg2 Qd4 33. Be6 Qe3 34. Qxe3 Bxe3 35. Kf3 Bd2 36. h4 Kf6 37. Ke2 Bc1 38. Kd3 Ke5 39. Bg8 h6 40. Bf7 g5 41. hxg5 hxg5 42. Be6 Ba3 43. Bf5 Bc5 44. Kc4 Bf2 45. g4 Bg1 46. a3 Bf2 47. b4 axb4 48. axb4 Bg1 49. Kb5 Bf2 50. Kc6 Be3 51. Kb5 Bf2 52. Kc6 Be3 53. Kc7 Bg1 54. Kd7 Be3 1/2-1/2

[Event "GER-chT U20"]
[Site "Naumburg Saale"]
[Date "2014.12.28"]
[Round "4.4"]
[White "Merker, Konstantin"]
[Black "Diller, Daniel"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "1663"]
[BlackElo "1946"]
[PlyCount "54"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Coswig TuS"]
[BlackTeam "Erlangen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Qc2 b6 5. Nf3 0-0 6. e4 d5 7. e5 Ne4 8. a3 Bxc3+ 9. bxc3 Bb7 10. Bd3 c5 11. 0-0 Nd7 12. a4 f6 13. Bb2 fxe5 14. dxe5 Rxf3 15. gxf3 Ng5 16. f4 dxc4 17. Bxh7+ Nxh7 18. Qg6 Ndf8 19. Qg4 Qd2 20. Rab1 Qc2 21. f3 Rd8 22. h4 Rd3 23. f5 exf5 24. Qxf5 Bxf3 25. Qh3 Bd5 26. Qg4 Rd2 27. Rxf8+ Nxf8 0-1

[Event "GER-chT U20"]
[Site "Naumburg Saale"]
[Date "2014.12.28"]
[Round "3.4"]
[White "Reksten, Daniel"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "A70"]
[WhiteElo "1964"]
[BlackElo "1663"]
[PlyCount "95"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Solingen"]
[BlackTeam "Coswig TuS"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Nf3 c5 7. d5 e6 8. Bd3 exd5 9. cxd5 a6 10. a4 Nbd7 11. 0-0 Rb8 12. Bf4 Qc7 13. Rc1 Re8 14. Re1 Nh5 15. Bh2 Bh6 16. Rb1 Nf4 17. Ne2 Nxd3 18. Qxd3 b5 19. axb5 axb5 20. b3 Ba6 21. Bf4 Bg7 22. Qc2 Rb6 23. Bd2 b4 24. Be3 Bb5 25. Nd2 Ne5 26. Nc1 Rb7 27. f4 Nd7 28. Nc4 Nb6 29. Nxb6 Rxb6 30. e5 Rbb8 31. Na2 Rbc8 32. Rbc1 dxe5 33. Qxc5 Qd7 34. Qxb4 exf4 35. Bxf4 Rxe1+ 36. Qxe1 Rxc1 37. Qxc1 Qa7+ 38. Kh2 Bd7 39. Nb4 Qb7 40. Qc4 Bb5 41. Qe4 Bd7 42. Nc6 Bf6 43. b4 Qb5 44. Ne7+ Bxe7 45. Qxe7 Bxh3 46. Qd8+ Kg7 47. Be5+ Kh6 48. Qh4# 1-0

[Event "GER-chT U20"]
[Site "Naumburg Saale"]
[Date "2014.12.27"]
[Round "1.4"]
[White "Budszuhn, Timo"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1940"]
[BlackElo "1663"]
[PlyCount "49"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Bochum"]
[BlackTeam "Coswig TuS"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Nc6 7. c4 Nb6 8. Nc3 Be7 9. d5 exd5 10. cxd5 Nb4 11. Qd4 Bxf3 12. Qxg7 Bf6 13. Bb5+ c6 14. Re1+ Kd7 15. Qxf7+ Kc8 16. Qe6+ Nd7 17. dxc6 Bxc6 18. Bf4 a6 19. Bxc6 Nxc6 20. Nd5 Bxb2 21. Rac1 Bxc1 22. Rxc1 Ra7 23. Rxc6+ bxc6 24. Qxc6+ Rc7 25. Qa8+ 1-0

[Event "GER-chT U20"]
[Site "Naumburg Saale"]
[Date "2014.12.27"]
[Round "2.4"]
[White "Merker, Konstantin"]
[Black "Grossmann, Dominic"]
[Result "1-0"]
[ECO "D41"]
[WhiteElo "1663"]
[BlackElo "1457"]
[PlyCount "59"]
[EventDate "2014.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Coswig TuS"]
[BlackTeam "Meuselwitz"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 d5 3. Nc3 e6 4. Nf3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 a6 8. Bd3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+ 11. Qxd2 0-0 12. 0-0 Nc6 13. d5 exd5 14. exd5 Ne7 15. d6 Nf5 16. Bxf5 Bxf5 17. Rac1 Qb6 18. h3 Rad8 19. Rfd1 Rfe8 20. Rc4 Re6 21. Rd4 Qb5 22. Rd5 Re2 23. Qg5 Qb6 24. Rxf5 Qxf2+ 25. Kh2 g6 26. Qxd8+ Kg7 27. Qf6+ Kh6 28. Qg5+ Kg7 29. d7 h6 30. Qf6+ 1-0

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2013.12.30"]
[Round "7.6"]
[White "Stemmler, Fabian"]
[Black "Merker, Konstantin"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1556"]
[BlackElo "1727"]
[PlyCount "95"]
[EventDate "2013.12.27"]
[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 "Brackel"]
[BlackTeam "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 Bg4 6. c5 N6d7 7. Qb3 Nc6 8. Bc4 e6 9. Nbd2 Na5 10. Qc3 Nxc4 11. Qxc4 Bxf3 12. Nxf3 c6 13. Bf4 Be7 14. 0-0 0-0 15. Rfe1 Nf6 16. Re2 Nh5 17. Be5 Qd7 18. Rae1 Rfe8 19. h3 Rad8 20. b4 Qd5 21. Qc2 g6 22. Qd2 Bf8 23. Re4 Ng7 24. Bf6 Rc8 25. Re5 Qd7 26. h4 Nf5 27. g4 Ne7 28. h5 Bg7 29. Bxg7 Kxg7 30. h6+ Kg8 31. Qe2 Nd5 32. a3 Red8 33. g5 Ne7 34. Rd1 Nf5 35. Qe4 Qe7 36. Qf4 Rd7 37. Nh4 Nxh4 38. Qxh4 Rcd8 39. Qf4 Rd5 40. Kf1 R5d7 41. Re4 Rd5 42. Re5 Re8 43. Rde1 Rxe5 44. Qxe5 Qf8 45. Qf6 Rd8 46. Re4 Rd5 47. Rf4 a6 48. a4 1/2-1/2

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2013.12.29"]
[Round "5.6"]
[White "Lebeda, Timo"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2092"]
[BlackElo "1727"]
[PlyCount "101"]
[EventDate "2013.12.27"]
[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 "Bebenhausen"]
[BlackTeam "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 c6 2. Nf3 Nf6 3. g3 d5 4. d4 Bg4 5. Bg2 e6 6. 0-0 Nbd7 7. Qb3 Qb6 8. c5 Qa6 9. Nc3 b6 10. cxb6 Qxb6 11. Bf4 c5 12. Nb5 Rc8 13. Rfc1 c4 14. Nd6+ Bxd6 15. Qxb6 axb6 16. Bxd6 Ne4 17. Bb4 b5 18. a4 bxa4 19. Rxa4 f5 20. Rca1 Bxf3 21. Bxf3 Nef6 22. Ra7 Kf7 23. R1a6 Rhe8 24. e3 Rb8 25. Ba3 Kg6 26. Bxd5 exd5 27. Rxd7 Ra8 28. Rda7 Rab8 29. Rd7 Ra8 30. Rdd6 Reb8 31. Kg2 Rxa6 32. Rxa6 Rb3 33. Kf3 Rd3 34. Be7 Rb3 35. Bxf6 gxf6 36. Ra2 h5 37. h4 Rb6 38. Ke2 Kf7 39. Kd2 Rb3 40. Kc2 Rb6 41. Ra7+ Kg6 42. Rd7 Rb5 43. Rc7 Rb6 44. Rc5 Rd6 45. Kc3 f4 46. gxf4 Kf5 47. f3 Ke6 48. e4 Rd7 49. Rxd5 Rxd5 50. exd5+ Kxd5 51. f5 1-0

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2013.12.28"]
[Round "3.6"]
[White "Merker, Konstantin"]
[Black "Hinrichs, Lars"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "1727"]
[BlackElo "1996"]
[PlyCount "80"]
[EventDate "2013.12.27"]
[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 "Coswig"]
[BlackTeam "Hamburger SK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. e3 b5 6. b3 Bg4 7. h3 Bxf3 8. Qxf3 e6 9. c5 Nbd7 10. Be2 Qa5 11. Bd2 b4 12. Na4 Ne4 13. Rd1 Ndf6 14. 0-0 Nxd2 15. Rxd2 Qc7 16. Bd3 Be7 17. e4 dxe4 18. Bxe4 Nxe4 19. Qxe4 0-0 20. Rfd1 Rfd8 21. f4 Bf6 22. Rd3 Rab8 23. Nb6 Be7 24. Nc4 a5 25. Ne5 Rd5 26. Nc4 Rbd8 27. g4 g6 28. Nb6 Rxd4 29. Rxd4 Bxc5 30. Kg2 Bxd4 31. Rxd4 Qxb6 32. Rxd8+ Qxd8 33. Qxc6 Qd5+ 34. Qxd5 exd5 35. Kf3 f6 36. Ke3 Kf7 37. Kd4 Ke6 38. h4 Kd6 39. g5 fxg5 40. hxg5 Ke6 0-1

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2013.12.28"]
[Round "4.6"]
[White "Padva, Leo"]
[Black "Merker, Konstantin"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "1803"]
[BlackElo "1727"]
[PlyCount "128"]
[EventDate "2013.12.27"]
[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 "Koeln Porz"]
[BlackTeam "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. b3 Bg4 5. Bg2 Nbd7 6. 0-0 e6 7. Bb2 Bc5 8. d4 Be7 9. Nbd2 0-0 10. Re1 b5 11. c5 Qc7 12. e4 dxe4 13. Nxe4 Nd5 14. a3 N7f6 15. Qc2 Rfd8 16. Ne5 Bf5 17. Qd2 Nxe4 18. Bxe4 Bxe4 19. Rxe4 a5 20. Qc2 Bf6 21. f4 a4 22. b4 Ne7 23. Rf1 Rd5 24. g4 Rad8 25. Qf2 Qc8 26. g5 Bxe5 27. fxe5 Nf5 28. Rd1 Qd7 29. Rd3 Kh8 30. Rf4 Rxe5 31. Rh3 Rd5 32. Rfh4 Nxh4 33. Qxh4 Kg8 34. Qxh7+ Kf8 35. Qh8+ Ke7 36. Qxg7 Rf8 37. Qf6+ Ke8 38. Rh8 Rxg5+ 39. Qxg5 Rxh8 40. d5 Rf8 41. d6 f6 42. Qg2 f5 43. Bg7 Rf7 44. Qg6 Kd8 45. Bf6+ Kc8 46. Be7 Rxe7 47. dxe7 Qxe7 48. Kf2 Kd7 49. Qh6 e5 50. Qh5 f4 51. Qg4+ Qe6 52. Qg7+ Ke8 53. Qh8+ Kd7 54. Qh7+ Ke8 55. Qh8+ Kf7 56. Qh7+ Kf6 57. Qh6+ Kf5 58. Qh3+ Kf6 59. Qh6+ Ke7 60. Qg7+ Kd8 61. Qf8+ Kd7 62. Qg7+ Ke8 63. Qh8+ Kd7 64. Qg7+ Ke8 1/2-1/2

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2013.12.27"]
[Round "2.6"]
[White "Meichsner, Marwin"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "1515"]
[BlackElo "1727"]
[PlyCount "97"]
[EventDate "2013.12.27"]
[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 "Erfurt"]
[BlackTeam "Coswig"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 c5 7. d5 e6 8. 0-0 exd5 9. exd5 Re8 10. Re1 a6 11. a4 Nbd7 12. Bd3 Ng4 13. Bf4 Nge5 14. Nxe5 Nxe5 15. Qd2 Bd7 16. b3 Qc7 17. Re2 Nxd3 18. Rxe8+ Rxe8 19. Qxd3 Qa5 20. Bd2 Bf5 21. Qf3 Qb6 22. Qd1 Qd8 23. Rc1 Qh4 24. Be3 Be5 25. g3 Qf6 26. Ne2 Bb2 27. Nf4 Bxc1 28. Qxc1 Qe5 29. h4 Qe4 30. Ne2 Qb1 31. Qxb1 Bxb1 32. Kf1 Bc2 33. Nc1 f5 34. Bf4 Rd8 35. f3 b5 36. axb5 axb5 37. Ke2 bxc4 38. bxc4 Kf7 39. Kd2 Ba4 40. Ne2 Rd7 41. Nc3 Bb3 42. Kd3 Ke7 43. Bg5+ Kf7 44. Nb5 Ba4 45. Nc3 Ra7 46. Bf4 Ke7 47. Bg5+ Kd7 48. Nb1 Bd1 49. Nd2 0-1

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2013.12.27"]
[Round "1.6"]
[White "Merker, Konstantin"]
[Black "Valledor Pereira, Dominik Damian"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "1727"]
[BlackElo "1571"]
[PlyCount "145"]
[EventDate "2013.12.27"]
[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 "Coswig"]
[BlackTeam "Lippstadt Turm"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. e3 Bd6 6. Bd3 0-0 7. 0-0 a6 8. cxd5 Nxd5 9. Re1 Nxc3 10. bxc3 e5 11. Qc2 h6 12. e4 Qe7 13. Bb2 c5 14. Rad1 b5 15. dxe5 Nxe5 16. Nxe5 Qxe5 17. g3 c4 18. Bf1 Bb7 19. Bc1 Qe7 20. Bg2 Rfe8 21. Be3 Bc5 22. Bxc5 Qxc5 23. Rd4 Rad8 24. Red1 Qc7 25. Qd2 Rxd4 26. Qxd4 Qe5 27. Qd7 Qe7 28. f3 Kf8 29. Qxe7+ Kxe7 30. Kf2 Bc8 31. Ke3 Be6 32. a3 Rb8 33. f4 Rb6 34. e5 a5 35. Bd5 b4 36. Bxe6 fxe6 37. cxb4 axb4 38. axb4 Rxb4 39. Rd2 h5 40. Kd4 g6 41. Rc2 Ra4 42. Rxc4 Ra2 43. h3 Rh2 44. h4 Rd2+ 45. Ke3 Rd7 46. Rc3 Rb7 47. g4 hxg4 48. Kf2 Rb1 49. Rg3 Rb2+ 50. Kg1 Kf7 51. Rxg4 Re2 52. Rg2 Re4 53. Rf2 Kg7 54. Kg2 Kh6 55. Kg3 Kh5 56. Rf3 Re1 57. Rd3 Re2 58. Rd6 Re3+ 59. Kf2 Kg4 60. Rxe6 Rf3+ 61. Ke2 Rxf4 62. Rxg6+ Kf5 63. Rg5+ Ke6 64. h5 Re4+ 65. Kf3 Rxe5 66. Rg6+ Kf7 67. Kg4 Re8 68. Kg5 Rg8 69. Kh6 Rh8+ 70. Kg5 Rg8 71. Kf5 Rxg6 72. hxg6+ Kg7 73. Kg5 1/2-1/2

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2013.04.06"]
[Round "7"]
[White "Merker, Konstantin"]
[Black "Braeuer, Felix"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "1767"]
[BlackElo "1808"]
[PlyCount "102"]
[EventDate "2013.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. d5 a5 8. 0-0 Na6 9. h3 Bd7 10. Be3 Qe8 11. Nd2 h6 12. a3 a4 13. b4 axb3 14. Qxb3 b6 15. a4 Nc5 16. Bxc5 dxc5 17. Nb5 Qb8 18. Ra3 c6 19. Nc3 Ra6 20. Rb1 Qa7 21. Qb2 Ra8 22. Kh1 Ne8 23. Rb3 Rb8 24. a5 Rxa5 25. Rxb6 Rxb6 26. Qxb6 Qxb6 27. Rxb6 cxd5 28. cxd5 Kf8 29. Nb3 Ra3 30. Nxc5 Rxc3 31. Nxd7+ Ke7 32. Nb8 Nd6 33. f3 f5 34. Nc6+ Kd7 35. Ra6 Rb3 36. Na5 Rb1+ 37. Kh2 Bf6 38. Ra7+ Ke8 39. Nc6 Rb2 40. Bd3 Rd2 41. Bb1 Rb2 42. Ra8+ Kf7 43. Rb8 Re2 44. Rb4 Ke8 45. Na5 Bg5 46. exf5 gxf5 47. Nb7 Nxb7 48. Rxb7 Bf4+ 49. Kg1 Bg3 50. Bd3 Re1+ 51. Bf1 Rd1 1/2-1/2

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2013.04.05"]
[Round "6"]
[White "Moehn, Hans"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "A75"]
[WhiteElo "2167"]
[BlackElo "1767"]
[PlyCount "59"]
[EventDate "2013.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 c5 7. 0-0 Bg4 8. d5 e6 9. h3 Bxf3 10. Bxf3 exd5 11. cxd5 a6 12. a4 Nbd7 13. Be3 Rb8 14. a5 Re8 15. Qc2 b5 16. axb6 Qxb6 17. Rfb1 Ra8 18. Be2 a5 19. Ra2 Reb8 20. f3 Ne8 21. Nb5 Nc7 22. Na3 Na6 23. Nc4 Qc7 24. Rxa5 Ne5 25. Rxa6 Nxf3+ 26. Bxf3 Rxa6 27. e5 dxe5 28. d6 Qa7 29. Qd3 Rd8 30. Qd5 1-0

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2013.04.05"]
[Round "5"]
[White "Ruehrmund, Daniel"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2163"]
[BlackElo "1767"]
[PlyCount "71"]
[EventDate "2013.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. d4 Bg4 5. h3 Bh5 6. c4 Nb6 7. Nc3 e6 8. g4 Bg6 9. Ne5 Be7 10. Bf4 Nc6 11. Nxg6 hxg6 12. d5 exd5 13. cxd5 Nb4 14. Bg2 0-0 15. a3 Na6 16. 0-0 Bd6 17. Bxd6 Qxd6 18. b4 Rad8 19. Rc1 Rfe8 20. Qb3 Qf4 21. Nb5 Re5 22. Nxc7 Nxc7 23. Rxc7 Rexd5 24. Bxd5 Qxc7 25. Be4 Qc4 26. Qf3 Qb5 27. Rc1 Qd7 28. Bxb7 Qd3 29. Rc3 Qd1+ 30. Kg2 Qa1 31. Rc7 Rd1 32. Qxf7+ Kh7 33. Be4 Rg1+ 34. Kh2 Rh1+ 35. Bxh1 Qe5+ 36. f4 1-0

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2013.04.04"]
[Round "4"]
[White "Merker, Konstantin"]
[Black "Jacob, Tobias"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1767"]
[BlackElo "1859"]
[PlyCount "69"]
[EventDate "2013.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Nf3 e5 7. d5 h6 8. Bd3 Nh5 9. 0-0 Nf4 10. Bc2 f5 11. Bxf4 exf4 12. exf5 Bxf5 13. Bxf5 Rxf5 14. Nd4 Bxd4 15. Qxd4 Nd7 16. Rfe1 Ne5 17. Re4 Qg5 18. Kh1 Raf8 19. Rf1 Qh5 20. f3 g5 21. Nb5 Qf7 22. Qc3 Qh7 23. Nd4 R5f7 24. b4 Qg6 25. c5 Kh8 26. cxd6 cxd6 27. Nb5 Re8 28. Rfe1 Rfe7 29. Nxa7 h5 30. Nc8 g4 31. Nxe7 Rxe7 32. fxg4 hxg4 33. Rxf4 gxh3 34. Rh4+ Kg8 35. Rxh3 1-0

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2013.04.03"]
[Round "2"]
[White "Merker, Konstantin"]
[Black "Viereck, Marten"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1767"]
[BlackElo "1791"]
[PlyCount "33"]
[EventDate "2013.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. 0-0 0-0 6. Bg5 h6 7. Bh4 d6 8. h3 Be6 9. Bxe6 fxe6 10. Nc3 Qd7 11. Qd2 Rae8 12. Na4 Bb6 13. Nxb6 axb6 14. Rad1 d5 15. Bxf6 Rxf6 16. a3 Ref8 17. Qe2 1/2-1/2

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2013.04.03"]
[Round "3"]
[White "Pinka, Maximilian"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1503"]
[BlackElo "1767"]
[PlyCount "84"]
[EventDate "2013.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 Bg4 6. Be3 e6 7. Nbd2 Nc6 8. Qc2 Be7 9. Bd3 Nb4 10. Qb1 Nxd3+ 11. Qxd3 0-0 12. 0-0 Bf6 13. Rfd1 Re8 14. Qc2 Qe7 15. Re1 Rad8 16. Rac1 c6 17. b3 Rd7 18. Ne5 Bxe5 19. dxe5 Bf5 20. Qc3 Qa3 21. Ra1 Red8 22. Nf3 Rd3 23. Qc1 Qb4 24. h3 h6 25. Nh4 Bh7 26. Bxh6 gxh6 27. Qxh6 Qf8 28. Qg5+ Qg7 29. Nf3 Qxg5 30. Nxg5 Bg6 31. Kh2 Rd2 32. f3 Rf2 33. Ne4 Bxe4 34. Rxe4 Rdd2 35. Rg4+ Kf8 36. a3 Rxf3 37. h4 Nd7 38. Re1 Rf5 39. Rg3 Nxe5 40. Kh3 Rd3 41. Rxd3 Nxd3 42. Rd1 Nf2+ 0-1

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2013.04.02"]
[Round "1"]
[White "Suhr, Daniel"]
[Black "Merker, Konstantin"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1346"]
[BlackElo "1767"]
[PlyCount "42"]
[EventDate "2013.04.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. g3 Nb6 5. Bg2 e5 6. Be3 c5 7. c3 cxd4 8. cxd4 Bb4+ 9. Nc3 exd4 10. Qxd4 Qxd4 11. Bxd4 Nc6 12. Bxg7 Rg8 13. Bxc6+ bxc6 14. Be5 Nc4 15. a3 Nxe5 16. axb4 Nd3+ 17. Kf1 Bf5 18. Kg2 Kd7 19. Rd1 Kc7 20. b5 Rad8 21. Ra1 Ra8 1/2-1/2

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2012.12.30"]
[Round "7.5"]
[White "Merker, Konstantin"]
[Black "Budszuhn, Timo"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "1727"]
[BlackElo "1924"]
[PlyCount "124"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Coswig 1920"]
[BlackTeam "Bochum SG"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 Nc6 9. d5 Bxc3+ 10. Bd2 Bxd2+ 11. Qxd2 Nb8 12. Bc4 0-0 13. 0-0 Nd7 14. Qh6 f6 15. d6+ Kh8 16. Bd5 exd6 17. Nh4 Qe8 18. f4 Rg8 19. Bxg8 Kxg8 20. Rbe1 b6 21. Rf3 Qf8 22. Qxf8+ Kxf8 23. Rd3 Ke7 24. e5 fxe5 25. fxe5 Nxe5 26. Nf3 Bf5 27. Rde3 Kf6 28. Nxe5 dxe5 29. Rxe5 c4 30. Re7 h5 31. Rc7 b5 32. a3 Rc8 33. Rxa7 c3 34. Rc1 c2 35. Kf2 Ke5 36. a4 b4 37. Rb7 Kd4 38. Rxb4+ Kc3 39. Rb6 Kd2 40. Ra1 c1Q 41. Rd6+ Bd3 42. Rxc1 Rxc1 43. a5 Rc5 44. g4 Rxa5 45. gxh5 Rxh5 46. Kg3 Ke3 47. h4 Rf5 48. Re6+ Be4 49. Kg4 Rh5 50. Kg3 Kd4 51. Ra6 Ke5 52. Ra5+ Kf6 53. Ra6+ Kg7 54. Ra7+ Kh6 55. Ra4 Bc6 56. Ra6 Rc5 57. Ra7 Be4 58. Re7 Bf5 59. Re8 Rc8 60. Re7 Rc3+ 61. Kf4 Rh3 62. h5 Rxh5 0-1

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2012.12.29"]
[Round "5.5"]
[White "Groetzbach, Julian"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2019"]
[BlackElo "1727"]
[PlyCount "79"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Hamburger SK"]
[BlackTeam "Coswig 1920"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Be2 Bf5 5. Nf3 Nxd5 6. d4 e6 7. 0-0 Nc6 8. c4 Ndb4 9. Na3 Be7 10. Be3 0-0 11. Qd2 Qd7 12. Rfc1 Rad8 13. Nb5 Bf6 14. a3 Nc2 15. Rxc2 Bxc2 16. Qxc2 a6 17. Nc3 Nxd4 18. Nxd4 Bxd4 19. Rd1 c5 20. Bg5 Rc8 21. Bd3 h6 22. Bh4 Qc7 23. Qe2 Qb6 24. Re1 g6 25. h3 Kh7 26. Rb1 Qb3 27. Ne4 Rc7 28. Bc2 Qb6 29. Nf6+ Kg7 30. Qf3 Qd6 31. Rd1 b5 32. b3 bxc4 33. bxc4 Rb8 34. Ne4 Qc6 35. Rxd4 cxd4 36. Qf6+ Kh7 37. Bg3 Rh8 38. Be5 Rg8 39. Qh4 g5 40. Nxg5# 1-0

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2012.12.29"]
[Round "6.5"]
[White "Merker, Konstantin"]
[Black "Alcer, Fabian"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "1727"]
[BlackElo "1664"]
[PlyCount "61"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Coswig 1920"]
[BlackTeam "Berlin Empor"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. e3 g6 5. Nf3 d6 6. Be2 Bg7 7. 0-0 0-0 8. cxb5 a6 9. Nc3 Nbd7 10. bxa6 Bxa6 11. Bxa6 Rxa6 12. e4 Qa5 13. Re1 Rb8 14. e5 dxe5 15. Nxe5 Nxe5 16. Rxe5 Nxd5 17. Rxd5 Bxc3 18. bxc3 Qxc3 19. Bh6 Rd6 20. Rxd6 exd6 21. a4 d5 22. a5 Qf6 23. Rb1 Rd8 24. Rb6 Qc3 25. a6 Qa5 26. Qb1 f6 27. h3 d4 28. Rb8 Rxb8 29. Qxb8+ Kf7 30. a7 Qe1+ 31. Kh2 1-0

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2012.12.28"]
[Round "4.5"]
[White "Merker, Konstantin"]
[Black "Pfreundt, Jakob"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "1727"]
[BlackElo "1919"]
[PlyCount "83"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Coswig 1920"]
[BlackTeam "Hamburg Koenigsspringer"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. a3 Bxc3+ 6. Qxc3 Bb7 7. Bg5 h6 8. Bh4 d6 9. Nf3 g5 10. Bg3 Ne4 11. Qc2 h5 12. h3 Nxg3 13. fxg3 Nd7 14. e4 Qe7 15. 0-0-0 e5 16. d5 a5 17. Be2 a4 18. g4 h4 19. Rhf1 Nc5 20. Nd2 Bc8 21. Rf3 Bd7 22. Rdf1 Rh7 23. Kd1 Kd8 24. Ke1 Kc8 25. Kf2 Kb7 26. Kg1 Rg8 27. b4 axb3 28. Nxb3 Nxb3 29. Qxb3 Ra8 30. Qa2 Ra5 31. Bd1 Rg7 32. Qf2 Be8 33. Bc2 Qd8 34. Ra1 Rc5 35. Bb3 Qa8 36. Qd2 Ra5 37. Bc2 Qa6 38. Qb4 Rc5 39. Bb3 Qa5 40. Rf6 Kc8 41. Rh6 Kd8 42. Rf1 1/2-1/2

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2012.12.28"]
[Round "3.5"]
[White "Shishkov, Mark"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "1885"]
[BlackElo "1727"]
[PlyCount "88"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Solingen"]
[BlackTeam "Coswig 1920"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 c5 7. d5 e6 8. Bd3 exd5 9. exd5 Re8+ 10. Be3 Nbd7 11. Qd2 Bh6 12. 0-0-0 Bxe3 13. fxe3 a6 14. Rhf1 b5 15. cxb5 c4 16. Bxc4 axb5 17. Bxb5 Ba6 18. Bxa6 Rxa6 19. Nd4 Qb6 20. Qf2 Rb8 21. Rd2 Rf8 22. g4 Qc5 23. Nb3 Qc7 24. Rc2 Qb7 25. e4 Raa8 26. Qh4 Kg7 27. Rcf2 Ng8 28. Qg3 Ne5 29. Nc5 Qc7 30. Rxf7+ Rxf7 31. Ne6+ Kh8 32. Nxc7 Rxf1+ 33. Kc2 Raf8 34. N7b5 R8f3 35. Qh4 R1f2+ 36. Kb3 Nf7 37. Nd4 Rf6 38. Nf5 Rh2 39. Qg3 Rh1 40. Qg2 Ra1 41. Ne3 Ne5 42. Ned1 Nd3 43. a3 Rf8 44. Kc2 Ne1+ 0-1

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2012.12.27"]
[Round "1.5"]
[White "Merker, Konstantin"]
[Black "Lebeda, Timo"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1727"]
[BlackElo "2033"]
[PlyCount "58"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Coswig 1920"]
[BlackTeam "Bebenhausen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 a6 5. e3 b5 6. cxd5 cxd5 7. Bd3 e6 8. Nf3 h6 9. Bh4 Nc6 10. 0-0 Be7 11. Rc1 Na5 12. a3 0-0 13. e4 dxe4 14. Nxe4 Bb7 15. Nc5 Bxf3 16. Qxf3 Qxd4 17. Bxf6 gxf6 18. Rfd1 Bxc5 19. Bh7+ Kxh7 20. Rxd4 Bxd4 21. b4 Bb2 22. Rc5 Nc4 23. g4 Rad8 24. Rh5 Rg8 25. Qb7 Rxg4+ 26. Kf1 Nd2+ 27. Ke2 Re4+ 28. Kd1 Nc4+ 29. Kc2 Rd2+ 0-1

[Event "GER-chT U20"]
[Site "Osnabrueck"]
[Date "2012.12.27"]
[Round "2.5"]
[White "Schopferer, Markus"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1606"]
[BlackElo "1727"]
[PlyCount "56"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Heitersheim"]
[BlackTeam "Coswig 1920"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. g3 d5 2. Bg2 Nf6 3. d3 e5 4. e3 Be7 5. Nc3 Be6 6. Nge2 Nc6 7. 0-0 0-0 8. a3 a5 9. f4 Qd7 10. e4 Bc5+ 11. Kh1 Bh3 12. Ng1 Bxg2+ 13. Kxg2 Rad8 14. exd5 Nxd5 15. Ne4 Bb6 16. f5 f6 17. Qg4 Nd4 18. c4 Nc2 19. cxd5 Nxa1 20. Bh6 Nc2 21. Bd2 Qxd5 22. Bh6 Rd7 23. Nf3 Be3 24. Nxf6+ Rxf6 25. Bg5 Bxg5 26. Qxg5 Qxd3 27. Rf2 Rxf5 28. Qg4 Ne3+ 0-1

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2012.04.14"]
[Round "7"]
[White "Frank, Patrick"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "E78"]
[WhiteElo "1954"]
[BlackElo "1644"]
[PlyCount "69"]
[EventDate "2012.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. f4 c5 7. Nf3 a6 8. 0-0 Nbd7 9. Kh1 cxd4 10. Nxd4 Qc7 11. Be3 e5 12. Nb3 b6 13. Qe1 Bb7 14. fxe5 Nxe5 15. Qh4 Nfd7 16. Rac1 Rfe8 17. Nd4 Nc5 18. Nd5 Bxd5 19. cxd5 Qd7 20. Rc3 b5 21. Bg5 Ra7 22. Rh3 h5 23. Bxh5 gxh5 24. Qxh5 Nxe4 25. Qh7+ Kf8 26. Qxe4 Qg4 27. Ne6+ Rxe6 28. Qxg4 Nxg4 29. dxe6 f6 30. Rc3 Ke7 31. h3 fxg5 32. Rf7+ Kxe6 33. Rxa7 Nf2+ 34. Kh2 Bxc3 35. Kg1 1-0

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2012.04.13"]
[Round "5"]
[White "Hanisch, Paul"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1636"]
[BlackElo "1644"]
[PlyCount "50"]
[EventDate "2012.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d6 4. d4 exd4 5. Bxd4 Nxd4 6. exd4 Nf6 7. Nf3 Bg4 8. Nbd2 g6 9. Be2 Bg7 10. c3 0-0 11. 0-0 Re8 12. Re1 a6 13. Qc2 Bf5 14. Bd3 Bxd3 15. Qxd3 Qd7 16. Nf1 Nd5 17. Rad1 Rxe1 18. Rxe1 Re8 19. Rxe8+ Qxe8 20. Ne3 Nf4 21. Qc4 Qe4 22. Ng5 Qb1+ 23. Nf1 d5 24. Qxc7 Ne2+ 25. Kh1 Qxf1# 0-1

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2012.04.13"]
[Round "6"]
[White "Merker, Konstantin"]
[Black "Braeuer, Felix"]
[Result "0-1"]
[ECO "D56"]
[WhiteElo "1644"]
[BlackElo "1721"]
[PlyCount "86"]
[EventDate "2012.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 0-0 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 Nxc3 10. bxc3 Nd7 11. Bd3 dxc4 12. Bxc4 c5 13. 0-0 b6 14. Rfe1 Bb7 15. e4 cxd4 16. cxd4 Rac8 17. Qe2 Bxe4 18. Qxe4 Rxc4 19. Rac1 Nf6 20. Qd3 Rc7 21. Rc4 Rfc8 22. Rec1 Nd5 23. Ne5 Qg5 24. Qd1 Nf4 25. g3 Rxc4 26. Rxc4 Rxc4 27. Nxc4 Qd5 28. Qf1 Nh3+ 29. Qxh3 Qxc4 30. Qg2 Qc1+ 31. Qf1 Qxf1+ 32. Kxf1 Kf8 33. Ke2 Ke7 34. Kd3 Kd6 35. Kc4 a6 36. h4 h5 37. f3 f6 38. g4 g6 39. gxh5 gxh5 40. f4 f5 41. a3 Kc6 42. Kc3 Kd5 43. Kd3 b5 0-1

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2012.04.12"]
[Round "4"]
[White "Merker, Konstantin"]
[Black "Bilz, Constantin"]
[Result "1/2-1/2"]
[ECO "A59"]
[WhiteElo "1644"]
[BlackElo "1678"]
[PlyCount "97"]
[EventDate "2012.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. e4 Bxf1 8. Kxf1 d6 9. Nf3 Bg7 10. g3 0-0 11. Kg2 Nbd7 12. Qc2 Qa5 13. Rb1 Rfb8 14. a3 Ra7 15. Bd2 Ng4 16. Na2 Qb5 17. Bc3 Qa4 18. Qxa4 Rxa4 19. Bxg7 Kxg7 20. Nc3 Ra7 21. Rhe1 Nge5 22. Nxe5 Nxe5 23. Re2 Nd3 24. a4 Rb3 25. Rc2 c4 26. Kf1 Nc5 27. Ra1 Rab7 28. Nb5 Rb4 29. Na3 Nb3 30. Rd1 Rc7 31. Nb5 Rc8 32. Nc3 Nc5 33. Ra1 Ra8 34. Kg2 Nd3 35. Rb1 Rab8 36. Kf1 Nc5 37. Ke2 Nxa4 38. Nxa4 Rxa4 39. Rbc1 Rc8 40. b3 Rb4 41. Rxc4 Rcxc4 42. bxc4 Kf6 43. Rc3 Rb1 44. c5 dxc5 45. Rxc5 Ke5 46. Rc4 g5 47. Kf3 h5 48. h3 Rb3+ 49. Ke2 1/2-1/2

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2012.04.11"]
[Round "3"]
[White "Knabe, Sascha"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1575"]
[BlackElo "1644"]
[PlyCount "106"]
[EventDate "2012.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Be7 7. Nc3 Nxc3 8. bxc3 Nd7 9. Bf4 0-0 10. Rb1 Rb8 11. Nd2 Bxe2 12. Qxe2 Bd6 13. Be3 b6 14. Ne4 Qe7 15. Bg5 f6 16. Bh4 Rbc8 17. Rfe1 Rfe8 18. Qg4 Kh8 19. Re3 c5 20. Nxd6 Qxd6 21. Bg3 Qd5 22. dxc5 Nxc5 23. c4 Qd2 24. Re2 Qd7 25. Re3 Rcd8 26. Qe2 e5 27. h3 h6 28. Re1 Qd2 29. f4 e4 30. f5 Qxe2 31. R3xe2 Rd4 32. Bf2 Rxc4 33. Rd2 Ra4 34. c3 Kh7 35. Bd4 Rc4 36. Re3 Na4 37. Rde2 a6 38. Rd2 b5 39. Rg3 Re7 40. a3 Rec7 41. Rc2 a5 42. Re3 b4 43. axb4 axb4 44. Rxe4 Nxc3 45. Rf4 Rf7 46. Be3 Rxf4 47. Bxf4 Rb7 48. Bd2 b3 49. Rb2 Na4 50. Rb1 b2 51. Kf2 Rb4 52. g4 Rb3 53. Kg2 Ra3 0-1

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2012.04.11"]
[Round "2"]
[White "Merker, Konstantin"]
[Black "Nitschke, Robin"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1644"]
[BlackElo "1316"]
[PlyCount "71"]
[EventDate "2012.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bg5 0-0 5. Nf3 d6 6. e3 Nbd7 7. Bd3 b6 8. 0-0 c5 9. d5 Qc7 10. e4 e5 11. Qc2 Nh5 12. Nb5 Qb8 13. Be7 Re8 14. Bxd6 Qb7 15. Nc7 Rd8 16. Nxa8 Qxa8 17. Be7 Re8 18. Bg5 h6 19. Bd2 Nf4 20. Rfe1 Nf6 21. h3 g5 22. Bf1 Bd7 23. a3 Qc8 24. Nh2 h5 25. b4 g4 26. h4 Kh8 27. g3 Nh3+ 28. Kg2 Nh7 29. Bd3 Rf8 30. bxc5 bxc5 31. Bc3 f5 32. exf5 Bxf5 33. Bxf5 Rxf5 34. Re2 Qf8 35. Rb1 Rf3 36. Rb7 1-0

[Event "Sachsen-ch U18"]
[Site "Sebnitz"]
[Date "2012.04.10"]
[Round "1"]
[White "Plaettner, Stefan"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1848"]
[BlackElo "1644"]
[PlyCount "53"]
[EventDate "2012.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. d4 Bg4 5. Be2 e6 6. 0-0 Nc6 7. c4 Nb6 8. c5 Nd5 9. h3 Bf5 10. Nc3 Be7 11. Qb3 Ndb4 12. Be3 0-0 13. Rac1 b6 14. Rfd1 Nd5 15. Nxd5 exd5 16. cxb6 Nb4 17. bxc7 Qd6 18. a3 Bc2 19. Rxc2 Nxc2 20. Qxc2 Rfc8 21. Rc1 a5 22. Qf5 Rxc7 23. Rxc7 Qxc7 24. Qxd5 Rd8 25. Qa2 Bf6 26. b3 Rc8 27. a4 1-0

[Event "Sachsen-ch U14"]
[Site "Sebnitz"]
[Date "2009.04.17"]
[Round "7"]
[White "Merker, Konstantin"]
[Black "Matschewsky, Justus"]
[Result "0-1"]
[ECO "C30"]
[WhiteElo "1340"]
[BlackElo "1687"]
[PlyCount "110"]
[EventDate "2009.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nc6 3. Nf3 d6 4. Bc4 Nf6 5. 0-0 Be7 6. Nc3 Bg4 7. h3 Be6 8. Be2 Nd4 9. Nxd4 exd4 10. Nb5 Nxe4 11. Nxd4 Bd7 12. Bc4 0-0 13. d3 Nc5 14. f5 Bf6 15. Qg4 Kh8 16. Bd2 Qc8 17. Bc3 Na4 18. Qf3 Nxc3 19. bxc3 c6 20. Rad1 b5 21. Bb3 c5 22. Bd5 cxd4 23. Bxa8 Qxa8 24. Qxa8 Rxa8 25. cxd4 Bxd4+ 26. Kh1 b4 27. Rde1 Bf6 28. Rf4 a5 29. g4 d5 30. Kg2 Rc8 31. Re2 Ba4 32. a3 Bxc2 33. axb4 Bxd3 34. Re1 Be4+ 35. Rfxe4 dxe4 36. Rxe4 a4 37. b5 a3 38. b6 a2 39. b7 Rb8 40. Rc4 h6 41. Rc8+ Kh7 42. Rxb8 a1Q 43. Rh8+ Kxh8 44. b8Q+ Kh7 45. Qb3 Qb2+ 46. Qxb2 Bxb2 47. Kf3 Kg8 48. Ke4 Kf8 49. Kd5 Ke7 50. h4 Kf6 51. Ke4 Bc1 52. Kd5 h5 53. gxh5 Kxf5 54. h6 Bxh6 55. Kd6 Kg4 0-1

[Event "Sachsen-ch U14"]
[Site "Sebnitz"]
[Date "2009.04.17"]
[Round "6"]
[White "Neef, Maximilian"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "1742"]
[BlackElo "1340"]
[PlyCount "91"]
[EventDate "2009.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Ne4 6. Nc3 Bb4 7. Bd2 Bxc3 8. Bxc3 Nxc3 9. bxc3 0-0 10. Qc2 f5 11. d5 exd5 12. Nd4 d6 13. Ne6 Qe7 14. Nxf8 Qxf8 15. 0-0 Nd7 16. cxd5 Nc5 17. Rad1 Re8 18. Rd4 Ba6 19. Re1 Qe7 20. Qxf5 Rf8 21. Qc2 Re8 22. e3 Qe5 23. Red1 Bb5 24. Rh4 g6 25. Rdd4 a5 26. Rhf4 Kg7 27. h4 Kg8 28. Bf3 Kg7 29. Kg2 Ba6 30. h5 g5 31. Rf5 Qe7 32. Bg4 Nd7 33. f4 h6 34. fxg5 hxg5 35. Qd2 Ne5 36. e4 Kh6 37. Be2 Bc8 38. Rf2 Bd7 39. Qd1 Rg8 40. Qf1 Bg4 41. Rf6+ Kh7 42. Bxg4 Nxg4 43. Rf7+ Rg7 44. Rxe7 Ne3+ 45. Kg1 Nxf1 46. Rxg7+ 1-0

[Event "Sachsen-ch U14"]
[Site "Sebnitz"]
[Date "2009.04.16"]
[Round "5"]
[White "Merker, Konstantin"]
[Black "Gerstung, Richard"]
[Result "1-0"]
[ECO "C36"]
[WhiteElo "1340"]
[BlackElo "1206"]
[PlyCount "87"]
[EventDate "2009.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 Qxd5 4. Nc3 Qe6 5. Nf3 exf4+ 6. Qe2 Nf6 7. d4 Bd6 8. d5 Qxe2+ 9. Bxe2 Bf5 10. Nd4 Bg6 11. 0-0 Bc5 12. Ncb5 Bb6 13. Bxf4 Nxd5 14. c3 a6 15. Na3 Nc6 16. Rad1 0-0 17. Nc4 Nxf4 18. Rxf4 Nxd4 19. cxd4 Ba7 20. Kh1 Rfe8 21. Bg4 Bxd4 22. Rfxd4 Bc2 23. Rf1 Re7 24. Rd2 Bg6 25. Bf3 Be4 26. Bxe4 Rxe4 27. Rfd1 Kf8 28. b3 Rae8 29. h3 b5 30. Na5 c5 31. Rd6 R4e6 32. Rxe6 fxe6 33. Rd6 e5 34. Rxa6 e4 35. Kg1 Kf7 36. Rb6 Re5 37. Rxb5 Rf5 38. b4 g6 39. Rxc5 Ke6 40. Rxf5 gxf5 41. Kf2 f4 42. b5 Kd6 43. b6 Kd7 44. Nc4 1-0

[Event "Sachsen-ch U14"]
[Site "Sebnitz"]
[Date "2009.04.15"]
[Round "4"]
[White "Merker, Konstantin"]
[Black "Grosse, Christian"]
[Result "0-1"]
[ECO "A02"]
[WhiteElo "1340"]
[BlackElo "1652"]
[PlyCount "114"]
[EventDate "2009.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 g6 2. f4 Bg7 3. Nf3 d6 4. g3 Nf6 5. d3 0-0 6. Bg2 c6 7. 0-0 Nbd7 8. Kh1 b5 9. Nh4 Bb7 10. f5 Ne5 11. Nd2 Qb6 12. Ndf3 Nfg4 13. Nxe5 Nxe5 14. g4 d5 15. g5 c5 16. exd5 Rad8 17. Qe2 Bxd5 18. Bxd5 Rxd5 19. Bf4 Qc6 20. Qg2 c4 21. Rae1 Qd7 22. f6 exf6 23. gxf6 Bxf6 24. Nf5 cxd3 25. Ne7+ Bxe7 26. Rxe5 Rxe5 27. Bxe5 dxc2 28. Bf4 Rc8 29. Bh6 Qd1 30. Qf2 Qd5+ 31. Kg1 Bc5 32. Be3 Bxe3 33. Qxe3 Qd1 34. Qc1 Qg4+ 35. Kh1 Qe4+ 36. Kg1 Rc5 37. b3 Re5 38. Kf2 Rf5+ 39. Kg1 Rxf1+ 40. Kxf1 Qd3+ 41. Ke1 Qd1+ 42. Qxd1 cxd1Q+ 43. Kxd1 Kf8 44. Kd2 Ke7 45. Kd3 Kd6 46. Kd4 f5 47. h4 a5 48. a3 h6 49. a4 bxa4 50. bxa4 g5 51. hxg5 hxg5 52. Kc4 g4 53. Kb5 g3 54. Kxa5 g2 55. Ka6 g1Q 56. a5 Qb1 57. Ka7 Kc7 0-1

[Event "Sachsen-ch U14"]
[Site "Sebnitz"]
[Date "2009.04.15"]
[Round "2"]
[White "Merker, Konstantin"]
[Black "Ruehrmund, Daniel"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "1340"]
[BlackElo "1713"]
[PlyCount "134"]
[EventDate "2009.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. d3 e6 5. g3 g6 6. Bg2 Bg7 7. 0-0 Nge7 8. Nc3 0-0 9. Nh4 Nd4 10. Kh1 Rb8 11. Bh3 b6 12. g4 f5 13. gxf5 exf5 14. Bg2 Bb7 15. Nf3 Qd7 16. Nxd4 Bxd4 17. Ne2 Bg7 18. Ng3 Rbe8 19. c3 Ba6 20. Rg1 Bb7 21. Bd2 fxe4 22. dxe4 Kh8 23. Qc2 Bc6 24. Rae1 Qb7 25. c4 Rf7 26. Rgf1 Ref8 27. b3 Kg8 28. Qd3 Qc7 29. Be3 Bh6 30. Qd2 Bb7 31. Kg1 Bg7 32. Rd1 Rf6 33. e5 dxe5 34. Qd7 Qxd7 35. Rxd7 Bxg2 36. Kxg2 Nf5 37. Nxf5 Rxf5 38. Rxa7 exf4 39. Bc1 f3+ 40. Kh1 f2 41. Re7 Bf6 42. Re2 Bh4 43. Kg2 Kf7 44. Bb2 Rg5+ 45. Kh1 Kg8 46. Bc3 Rgf5 47. Kg2 g5 48. Re7 R5f7 49. Re6 g4 50. Be5 Ra7 51. Bg3 Bxg3 52. hxg3 Rxa2 53. Rxb6 Rb2 54. Rb5 Rf5 55. Rb7 h5 56. Rc7 Rc2 57. Rd7 Rf3 58. Rd5 Rcc3 59. Rd8+ Kg7 60. Rd7+ Kf6 61. Rxf2 Rxf2+ 62. Kxf2 Rf3+ 63. Kg2 Rxb3 64. Rd5 Rb2+ 65. Kg1 Rc2 66. Rxc5 Rc3 67. Kg2 Rc2+ 1/2-1/2

[Event "Sachsen-ch U14"]
[Site "Sebnitz"]
[Date "2009.04.15"]
[Round "3"]
[White "Schnoor, Friedrich"]
[Black "Merker, Konstantin"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "1629"]
[BlackElo "1340"]
[PlyCount "88"]
[EventDate "2009.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. Nf3 Be7 5. e4 0-0 6. Be2 d6 7. 0-0 Na6 8. Bg5 h6 9. Be3 Nc7 10. h3 a6 11. e5 dxe5 12. dxc5 Nd7 13. b4 f5 14. Qc2 e4 15. Nxe4 fxe4 16. Qxe4 Nf6 17. Qc2 Qe8 18. Bd3 Bd7 19. Ne5 Ba4 20. Qe2 Qh5 21. Qb2 Bc6 22. a4 Nh7 23. b5 Bf6 24. Qc2 Bxe5 25. Bxh7+ Kh8 26. bxc6 Bxa1 27. cxb7 Rab8 28. Rxa1 Rxb7 29. Be4 Rbb8 30. Qc3 e5 31. Qa5 Qf7 32. c6 Qxc4 33. Qxe5 Rfe8 34. Qxc7 Qxe4 35. Rd1 Rbc8 36. Qa7 Qxc6 37. Rd7 Ra8 38. Qd4 Qg6 39. Rd6 Qe4 40. Rxh6+ Kg8 41. Rd6 Qxd4 42. Rxd4 a5 43. Rd5 Re4 44. Bd4 Rae8 1/2-1/2

[Event "Sachsen-ch U14"]
[Site "Sebnitz"]
[Date "2009.04.14"]
[Round "1"]
[White "Fibich, Jascha"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1670"]
[BlackElo "1340"]
[PlyCount "98"]
[EventDate "2009.04.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 e6 3. e4 d6 4. c4 Nf6 5. Nc3 Be7 6. Bd3 e5 7. d5 Nb8 8. 0-0 Bg4 9. h3 Bh5 10. b4 0-0 11. Be3 Bg6 12. Qc2 Nh5 13. Ne2 h6 14. g4 Nf6 15. Ng3 h5 16. g5 Nh7 17. h4 f6 18. Qd2 fxg5 19. Nxg5 Nxg5 20. hxg5 Nd7 21. Kg2 Qe8 22. Rh1 Qf7 23. Qe2 c5 24. b5 Nb6 25. Rh3 Na4 26. Rah1 Nc3 27. Qc2 Qf3+ 28. Kh2 Qg4 29. Qxc3 Bxg5 30. Qd2 Bf4 31. Kg2 Rf6 32. f3 Qg5 33. Bxf4 exf4 34. Kf1 Qxg3 35. Rxg3 fxg3 36. Rh3 Rxf3+ 37. Ke1 Raf8 38. Be2 g2 39. Bxf3 g1Q+ 40. Ke2 Bxe4 41. Bxe4 Rf2+ 42. Kd3 Rxd2+ 43. Kxd2 Qd4+ 44. Bd3 Qf4+ 45. Kc2 h4 46. Rh1 g5 47. Rf1 Qh2+ 48. Kb3 Qd2 49. Bc2 Qb4# 0-1

[Event "Sachsen-ch U12"]
[Site "Sebnitz"]
[Date "2007.04.14"]
[Round "7"]
[White "Merker, Konstantin"]
[Black "Kempe, Markus"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1023"]
[BlackElo "1193"]
[PlyCount "65"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Nd5 7. c4 Nb6 8. Be2 Bc5 9. 0-0 0-0 10. b3 d6 11. exd6 cxd6 12. Bb2 Qg5 13. Nd2 Bh3 14. Bf3 Bd7 15. Ne4 Qf5 16. Nxd6 Bxd6 17. Qxd6 Rac8 18. Qd4 Qg6 19. Bh5 Qg5 20. f4 Qh6 21. Rf3 f6 22. a4 Qxh5 23. a5 Bg4 24. Re3 Nd7 25. h3 Bf5 26. g4 Bxg4 27. hxg4 Qxg4+ 28. Kf2 Rcd8 29. Rg1 Qh4+ 30. Reg3 c5 31. Qe4 Rfe8 32. Qf5 Re7 33. Qg4 1/2-1/2

[Event "Sachsen-ch U12"]
[Site "Sebnitz"]
[Date "2007.04.13"]
[Round "5"]
[White "Koelbel, Ole"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1412"]
[BlackElo "1023"]
[PlyCount "94"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. Bc4 Nb6 5. Ne5 Nxc4 6. Nxc4 Bf5 7. b3 Nc6 8. Bb2 Qd7 9. a4 0-0-0 10. Ba3 Nd4 11. Ne3 f6 12. c3 Nc6 13. b4 e5 14. b5 Na5 15. Bb4 b6 16. Bxa5 bxa5 17. Qf3 Kb8 18. Qxf5 Qd6 19. Nc4 Qd5 20. Ne3 Qb3 21. 0-0 Qb2 22. Ra3 Bxa3 23. Nc4 Qb3 24. Nxa5 Qxa4 25. Nc6+ Kb7 26. Nxd8+ Rxd8 27. Nxa3 Qxa3 28. Qe4+ Kb8 29. Qxh7 Rxd2 30. Qxg7 Qxc3 31. Qxf6 Qc5 32. Qc6 Rc2 33. Rb1 Qxf2+ 34. Kh1 Rxc6 35. bxc6+ Ka8 36. Rd1 a6 37. h3 e4 38. Rd8+ Ka7 39. Rd7 Kb6 40. Rd1 e3 41. Rb1+ Kxc6 42. Rc1+ Kb7 43. Rb1+ Kc8 44. h4 Qxh4+ 45. Kg1 Qf2+ 46. Kh2 e2 47. Rb2 Qh4+ 0-1

[Event "Sachsen-ch U12"]
[Site "Sebnitz"]
[Date "2007.04.13"]
[Round "6"]
[White "Neef, Maximilian"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "E78"]
[WhiteElo "1307"]
[BlackElo "1023"]
[PlyCount "99"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. f4 0-0 7. Nf3 Bg4 8. Be2 Nbd7 9. 0-0 a6 10. Be3 Rb8 11. a4 Qb6 12. Qc2 Rfe8 13. Kh1 Qc7 14. h3 Bxf3 15. Rxf3 e6 16. Raf1 e5 17. f5 Rf8 18. g4 h6 19. Rg3 g5 20. Kg2 Nh7 21. Rh1 Qd8 22. Kf1 Qe7 23. Rg2 f6 24. Qd2 Kf7 25. h4 Rh8 26. Bd3 Rbg8 27. Ne2 Nhf8 28. Ng3 Rh7 29. Rgh2 Rgh8 30. Nh5 Ke8 31. Qa5 Qf7 32. Qc7 b6 33. Qxd6 a5 34. Qc6 Qe7 35. d6 Qd8 36. Nxg7+ Rxg7 37. hxg5 fxg5 38. Rxh6 Rxh6 39. Rxh6 Rh7 40. Rxh7 Nxh7 41. Qc7 Ndf6 42. Qc6+ Nd7 43. Kf2 Nhf6 44. Kg3 Nh7 45. Kf3 Kf7 46. Qd5+ Kg7 47. Bd2 Ndf8 48. Qxe5+ Kg8 49. Qd5+ Kg7 50. e5 1-0

[Event "Sachsen-ch U12"]
[Site "Sebnitz"]
[Date "2007.04.12"]
[Round "4"]
[White "Merker, Konstantin"]
[Black "Pinka, Maximilian"]
[Result "1-0"]
[ECO "C36"]
[WhiteElo "1023"]
[BlackElo "1098"]
[PlyCount "71"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Qxd5 5. Nc3 Qe6+ 6. Be2 Nf6 7. 0-0 Bb4 8. Bb5+ Bd7 9. Re1 0-0 10. Rxe6 Bxe6 11. d4 Rd8 12. Bxf4 c6 13. Bd3 c5 14. dxc5 Bxc5+ 15. Kh1 Ng4 16. Bg3 Bf2 17. Bxh7+ Kxh7 18. Qxd8 Ne3 19. Bxf2 Ng4 20. Bg3 a5 21. Rd1 a4 22. Qh4+ Nh6 23. Ng5+ Kg6 24. Rd6 Nf5 25. Qe4 Kxg5 26. h4+ Kg6 27. Rxe6+ fxe6 28. Qxe6+ Kh7 29. Qxf5+ Kg8 30. Qc8+ Kh7 31. Bxb8 a3 32. b3 Ra6 33. Qf5+ Kg8 34. Be5 Ra5 35. Qe6+ Kf8 36. Bd6# 1-0

[Event "Sachsen-ch U12"]
[Site "Sebnitz"]
[Date "2007.04.11"]
[Round "2"]
[White "Merker, Konstantin"]
[Black "Mueller, Marius"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1023"]
[BlackElo "1404"]
[PlyCount "160"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nf3 Bf5 6. Nc3 e6 7. Be3 c6 8. Be2 Be7 9. 0-0 0-0 10. a3 Bg4 11. Qb3 N8d7 12. Rfd1 Nf6 13. Bg5 Qc7 14. h3 Bh5 15. Rac1 Bxf3 16. Bxf3 Rad8 17. Bxf6 Bxf6 18. d5 Bxc3 19. Rxc3 c5 20. dxe6 Rxd1+ 21. Qxd1 fxe6 22. Bg4 Qe5 23. Re3 Qxb2 24. Rf3 Re8 25. Bxe6+ Kh8 26. Rf7 Qd4 27. Qf3 Qd6 28. Qg4 Qd4 29. Qf5 Qd8 30. Qg4 Qd4 31. Qg3 Qa1+ 32. Kh2 Qd4 33. h4 Nc8 34. h5 Nd6 35. Rf4 Ne4 36. Qf3 Qe5 37. Qxe4 Qxh5+ 38. Rh4 Rxe6 39. Qf4 Qe5 40. Qxe5 Rxe5 41. Rf4 Kg8 42. Kg3 Re2 43. Rf3 Rc2 44. Rb3 b6 45. Rd3 Rxc4 46. Rd8+ Kf7 47. Rd7+ Kf6 48. Rxa7 Rc3+ 49. Kf4 g5+ 50. Ke4 Rc4+ 51. Ke3 h5 52. Ra6 Rc3+ 53. Kd2 Rb3 54. Kc2 Rb5 55. a4 Rb4 56. a5 Ke7 57. axb6 Kd7 58. Ra7+ Kc6 59. Rg7 g4 60. Rg5 Kxb6 61. Rxh5 Ra4 62. Rh4 Ra2+ 63. Kd3 g3 64. fxg3 Rxg2 65. Rg4 Kb5 66. Kc3 Rg1 67. Rg5 Rf1 68. Rd5 Rc1+ 69. Kb2 Rg1 70. Rg5 Kb4 71. Rg4+ c4 72. Kc2 Rg2+ 73. Kc1 Kc3 74. Kd1 Kd3 75. Ke1 c3 76. Rg8 Kc2 77. Rg7 Kb1 78. Rb7+ Rb2 79. Rc7 c2 80. Rxc2 Rxc2 0-1

[Event "Sachsen-ch U12"]
[Site "Sebnitz"]
[Date "2007.04.11"]
[Round "3"]
[White "Ruehrmund, Daniel"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1601"]
[BlackElo "1023"]
[PlyCount "113"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. d4 Bg4 5. Be2 e6 6. 0-0 Nc6 7. c3 Qd7 8. Nbd2 Be7 9. Nc4 f6 10. Qc2 Bf5 11. Qb3 b6 12. Ne3 Nxe3 13. Bxe3 0-0 14. Bf4 Kh8 15. Rad1 Bd6 16. Bg3 a6 17. Rd2 Rg8 18. Qd1 Qe7 19. Re1 Bxg3 20. hxg3 e5 21. d5 Na5 22. d6 cxd6 23. Rxd6 Rad8 24. Rxd8 Rxd8 25. Qc1 Bg6 26. Bxa6 Qd6 27. b3 Ra8 28. Bf1 Nc6 29. Bc4 Qe7 30. a4 Na5 31. Nd2 Bf7 32. Bxf7 Qxf7 33. c4 Qe7 34. Qc2 Qb4 35. Re3 Rd8 36. Ne4 h6 37. f3 Nb7 38. Qc3 Rd1+ 39. Kh2 Qa3 40. Rd3 Rc1 41. Qd2 Qa1 42. g4 Rh1+ 43. Kg3 Qg1 44. f4 exf4+ 45. Kxf4 Qh2+ 46. Kf3 Rf1+ 47. Nf2 f5 48. gxf5 Qh5+ 49. g4 Qh3+ 50. Ke2 Qg2 51. Qe3 Rb1 52. Qe8+ Kh7 53. Qg6+ Kh8 54. Qxb6 Rb2+ 55. Rd2 Rb1 56. a5 Qf1+ 57. Kf3 1-0

[Event "Sachsen-ch U12"]
[Site "Sebnitz"]
[Date "2007.04.10"]
[Round "1"]
[White "Merker, Konstantin"]
[Black "Jacob, Tobias"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1023"]
[BlackElo "1356"]
[PlyCount "132"]
[EventDate "2007.04.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 d6 4. g3 e6 5. Bg2 g6 6. 0-0 Bg7 7. Nc3 Nge7 8. d3 Bd7 9. Be3 b6 10. d4 cxd4 11. Nxd4 0-0 12. Nb3 Be8 13. Nb5 Nc8 14. Bd4 a6 15. Bxg7 Kxg7 16. Nc3 Qc7 17. e5 dxe5 18. fxe5 Qxe5 19. Qf3 N8a7 20. Rae1 Qd6 21. Qf6+ Kg8 22. Ne4 Qd8 23. Qc3 f5 24. Ned2 Bd7 25. Nd4 Rc8 26. Nxe6 Bxe6 27. Nb3 Bf7 28. Rd1 Qc7 29. Qd3 Nb4 30. Qd2 a5 31. c3 Nxa2 32. Bd5 Rfd8 33. Bxf7+ Qxf7 34. Qc2 Rxd1 35. Rxd1 Nb4 36. Qd2 Qxb3 37. cxb4 axb4 38. Qd7 Qe3+ 39. Kg2 Qe2+ 40. Kg1 Rf8 41. Qd5+ Kg7 42. Qd4+ Kh6 43. Qh4+ Qh5 44. Qf4+ Qg5 45. Qd6 Qe3+ 46. Kg2 Rc8 47. Qd2 Re8 48. Qxe3+ Rxe3 49. Kf2 Rb3 50. Rd2 Nc6 51. Rc2 Nd4 52. Rd2 Nc6 53. Rc2 Na5 54. Kg2 b5 55. Kh3 Nc4 56. Rf2 Rxb2 57. Rf4 b3 58. g4 fxg4+ 59. Rxg4 Rc2 60. Rh4+ Kg7 61. Rg4 b2 62. Rg1 Rc1 63. Rg2 b1Q 64. Rg3 Qf5+ 65. Rg4 Rc3+ 66. Kh4 Qh5# 0-1

[Event "Sachsen-ch U10"]
[Site "Sebnitz"]
[Date "2005.04.02"]
[Round "7"]
[White "Grosse, Christian"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "1114"]
[BlackElo "1083"]
[PlyCount "95"]
[EventDate "2005.03.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Bc4 Nb6 5. Bb3 Nc6 6. Nf3 e5 7. d3 Bg4 8. Be3 Nd4 9. Bxd4 exd4 10. Ne4 Qd7 11. 0-0 Bd6 12. Nxd6+ Qxd6 13. Re1+ Be6 14. Ng5 0-0 15. Nxe6 Rfe8 16. Ng5 Rxe1+ 17. Qxe1 h6 18. Nxf7 Qf6 19. Nxh6+ Kh7 20. Ng4 Qf4 21. h3 Rg8 22. Bxg8+ Kxg8 23. Qe8+ Qf8 24. Qxf8+ Kxf8 25. Re1 Kg8 26. f4 c5 27. Ne5 a5 28. g4 Nd5 29. a3 b5 30. f5 b4 31. a4 Ne3 32. Re2 Kf8 33. Nc4 Kf7 34. Nxe3 dxe3 35. Rxe3 Kf6 36. Re6+ Kg5 37. Rg6+ Kh4 38. Kg2 c4 39. Rxg7 cxd3 40. cxd3 b3 41. Rh7+ Kg5 42. Kf3 Kf6 43. Ke4 Kg5 44. d4 Kf6 45. d5 Kg5 46. d6 Kf6 47. d7 Kg5 48. d8B# 1-0

[Event "Sachsen-ch U10"]
[Site "Sebnitz"]
[Date "2005.04.01"]
[Round "6"]
[White "Merker, Konstantin"]
[Black "Scherf, Maximilian"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1083"]
[BlackElo "1042"]
[PlyCount "133"]
[EventDate "2005.03.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Nf6 6. Nc3 Bd6 7. e5 Be7 8. exf6 Bxf6 9. Qe3+ Qe7 10. Qxe7+ Bxe7 11. Bd3 0-0 12. 0-0 Re8 13. Re1 h6 14. Re3 c6 15. Rg3 Bh4 16. Re3 Rxe3 17. Bxe3 d5 18. Re1 Bd7 19. Bd2 Re8 20. Rxe8+ Bxe8 21. Kf1 Bd7 22. g3 Bf6 23. Ke2 Bg4+ 24. f3 Be6 25. a3 g6 26. Bxh6 Kh7 27. Bd2 Bf5 28. Bxf5 gxf5 29. f4 Bd4 30. Be3 Bxc3 31. bxc3 Kg6 32. h4 Kh5 33. Kd3 a6 34. Kd4 Kg6 35. Kc5 Kf6 36. Bd4+ Ke6 37. Kb6 Ke7 38. Kxb7 f6 39. Kxa6 Kd6 40. Kb7 c5 41. Bxc5+ Kxc5 42. h5 Kc4 43. h6 Kxc3 44. h7 d4 45. h8Q Kxc2 46. Qh1 d3 47. a4 d2 48. a5 d1Q 49. Qxd1+ Kxd1 50. a6 Ke2 51. a7 Kf3 52. a8Q Kxg3 53. Qf8 Kxf4 54. Qxf6 Kg4 55. Qg6+ Kf4 56. Kc6 Ke5 57. Qe8+ Kf6 58. Kd5 f4 59. Ke4 Kg5 60. Qf8 Kg6 61. Qxf4 Kg7 62. Qf5 Kg8 63. Qf6 Kh7 64. Qg5 Kh8 65. Kf5 Kh7 66. Kf6 Kh8 67. Qg7# 1-0

[Event "Sachsen-ch U10"]
[Site "Sebnitz"]
[Date "2005.03.31"]
[Round "5"]
[White "Gerntke, Oliver"]
[Black "Merker, Konstantin"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "1146"]
[BlackElo "1083"]
[PlyCount "77"]
[EventDate "2005.03.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Bg5 Be7 4. e3 h6 5. Bh4 c5 6. Nc3 cxd4 7. exd4 d5 8. Qd3 Nc6 9. Nf3 b6 10. cxd5 Nxd5 11. Nxd5 Qxd5 12. Bxe7 Nxe7 13. Qb5+ Bd7 14. Qxd5 exd5 15. Be2 0-0 16. 0-0 Bg4 17. Rfd1 Bxf3 18. Bxf3 f5 19. Re1 Rae8 20. Re2 Kh7 21. Rae1 Rf7 22. Bxd5 Nxd5 23. Rxe8 Rc7 24. g3 a5 25. Rd8 f4 26. Rxd5 f3 27. h4 b5 28. Rxb5 Rf7 29. Rxa5 g5 30. hxg5 hxg5 31. d5 g4 32. d6 Rg7 33. Rh5+ Kg6 34. Rh4 Kf7 35. d7 Rg6 36. d8Q Rh6 37. Rxh6 Kg7 38. Qf6+ Kg8 39. Rh8# 1-0

[Event "Sachsen-ch U10"]
[Site "Sebnitz"]
[Date "2005.03.30"]
[Round "3"]
[White "Merker, Konstantin"]
[Black "Ruehrmund, Daniel"]
[Result "0-1"]
[ECO "B93"]
[WhiteElo "1083"]
[BlackElo "1210"]
[PlyCount "52"]
[EventDate "2005.03.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 0-0 8. 0-0 Nc6 9. f4 a6 10. f5 b5 11. Nxc6 Qc7 12. Nd4 b4 13. Nd5 Nxd5 14. exd5 Bb7 15. Bf3 Qc4 16. g4 Bxd5 17. Bxd5 Qxd5 18. b3 Rac8 19. Qd3 Rc3 20. Qxa6 Bxd4 21. Bxd4 Qxd4+ 22. Kh1 Qe4+ 23. Kg1 Qxg4+ 24. Kh1 Rxc2 25. Rg1 Qf3+ 26. Rg2 Qxg2# 0-1

[Event "Sachsen-ch U10"]
[Site "Sebnitz"]
[Date "2005.03.30"]
[Round "4"]
[White "Schumer, Arik"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1026"]
[BlackElo "1083"]
[PlyCount "132"]
[EventDate "2005.03.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Nxd5 Qxd5 5. Qf3 Qxf3 6. Nxf3 Nc6 7. Bb5 f6 8. Nd4 Bd7 9. Nxc6 Bxc6 10. Bxc6+ bxc6 11. 0-0 e5 12. d3 Rb8 13. Re1 Be7 14. Be3 Rb4 15. a3 Rb7 16. d4 Bd6 17. dxe5 Bxe5 18. Rab1 0-0 19. f4 Bd6 20. b4 Re8 21. Bf2 Rxe1+ 22. Rxe1 Kf7 23. f5 a6 24. Re3 Rb5 25. Rc3 Rxf5 26. Rxc6 a5 27. bxa5 Rxa5 28. Bg3 Bxa3 29. Rxc7+ Kg6 30. Be1 Rf5 31. Ra7 Bb2 32. Bf2 Rd5 33. Re7 Rd2 34. c4 Rc2 35. c5 Ba3 36. g3 Rxc5 37. Kg2 Rc2 38. Ra7 Bc5 39. Ra4 Rxf2+ 40. Kh3 Be3 41. Rg4+ Bg5 42. Rd4 f5 43. Rd6+ Bf6 44. Re6 f4 45. gxf4 Rxf4 46. Kg3 Rf5 47. h4 Kh5 48. Re4 h6 49. Rg4 g5 50. hxg5 Rxg5 51. Rxg5+ hxg5 52. Kh2 g4 53. Kg2 Kh4 54. Kf1 g3 55. Kg2 Kg4 56. Kh1 Kf3 57. Kg1 g2 58. Kh2 Kf2 59. Kh3 Ba1 60. Kg4 g1Q+ 61. Kf5 Qe1 62. Kf4 Qe5+ 63. Kg4 Qf6 64. Kh3 Qg5 65. Kh2 Be5+ 66. Kh3 Qg3# 0-1

[Event "Sachsen-ch U10"]
[Site "Sebnitz"]
[Date "2005.03.29"]
[Round "2"]
[White "Merker, Konstantin"]
[Black "Vu Tuan, Minh"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1083"]
[BlackElo "1147"]
[PlyCount "59"]
[EventDate "2005.03.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 Qf6 7. f3 Nge7 8. c3 d6 9. a5 Bc5 10. Nxc5 dxc5 11. Be3 Qd6 12. Be2 0-0 13. 0-0 Be6 14. Qd2 Rad8 15. Bf4 Qxd2 16. Nxd2 Rd7 17. a6 bxa6 18. Rxa6 Kh8 19. Bb5 Rg8 20. Bxc6 Nxc6 21. Rxc6 g5 22. Be5+ Rg7 23. Bxg7+ Kxg7 24. Rd1 Re7 25. Rxc5 Bc8 26. Rxg5+ Kh6 27. f4 f6 28. Rg8 Ba6 29. Re1 f5 30. Re3 1-0

[Event "Sachsen-ch U10"]
[Site "Sebnitz"]
[Date "2005.03.29"]
[Round "1"]
[White "Standke, Jan"]
[Black "Merker, Konstantin"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "856"]
[BlackElo "1083"]
[PlyCount "74"]
[EventDate "2005.03.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 d5 2. e5 Nc6 3. d4 f6 4. Nf3 Bg4 5. exf6 gxf6 6. Be2 e5 7. dxe5 fxe5 8. Nc3 d4 9. Ne4 Qd5 10. Bd3 0-0-0 11. Neg5 Re8 12. Be4 Qc4 13. h3 Be6 14. Nxe6 Qxe6 15. Ng5 Qe7 16. Bf5+ Kb8 17. 0-0 Bh6 18. Qh5 Bxg5 19. Bxg5 Nf6 20. Qh6 Ref8 21. c3 Qf7 22. cxd4 Ng8 23. Qh4 Qxf5 24. dxe5 Qxe5 25. Rae1 Qxb2 26. Qf4 Nf6 27. Rb1 Qe5 28. Qc4 Qxg5 29. Qb3 b6 30. Qf3 Na5 31. Rbc1 Rhg8 32. g4 Qh4 33. Qf4 Rf7 34. Kh2 Nxg4+ 35. Qxg4 Rxg4 36. f3 Qg3+ 37. Kh1 Qg2# 0-1

