[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2017.07.15"]
[Round "8"]
[White "Merz, Norbert"]
[Black "Groth, Matthias"]
[Result "1-0"]
[ECO "B23"]
[BlackElo "1700"]
[PlyCount "99"]
[EventDate "2017.07.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 179 Extra"]
[Source "ChessBase"]
[SourceDate "2017.08.23"]
[SourceVersion "1"]
[SourceVersionDate "2017.08.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. a4 e6 7. 0-0 Ne7 8. Ne2 Nxf3+ 9. Rxf3 a6 10. Bd3 d5 11. c3 b6 12. e5 Bb7 13. Rf2 Rc8 14. Bb1 d4 15. c4 f6 16. exf6 Bxf6 17. Ng3 0-0 18. Qg4 Kf7 19. d3 Nf5 20. Nxf5 exf5 21. Qh3 Kg8 22. Bd2 Re8 23. Bc2 Rc6 24. Raf1 Rce6 25. Bd1 R6e7 26. Bf3 Qd7 27. Bxb7 Qxb7 28. g4 fxg4 29. Qxg4 Qd7 30. Qxd7 Rxd7 31. f5 g5 32. Rg2 Rg7 33. Re1 Rxe1+ 34. Bxe1 Re7 35. Bg3 Kf7 36. Kf1 h6 37. Re2 Ke8 38. Bc7 Rxe2 39. Kxe2 Bd8 40. Be5 g4 41. Kf2 Bh4+ 42. Bg3 Be7 43. Bc7 Kf7 44. Kg3 Kf6 45. Kxg4 h5+ 46. Kf4 Bf8 47. Bd8+ Kf7 48. Kg5 Bd6 49. h4 b5 50. b3 1-0

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2017.07.10"]
[Round "3"]
[White "Groth, Matthias"]
[Black "Vonrueden, Regina"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1700"]
[PlyCount "90"]
[EventDate "2017.07.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 179 Extra"]
[Source "ChessBase"]
[SourceDate "2017.08.23"]
[SourceVersion "1"]
[SourceVersionDate "2017.08.23"]
[SourceQuality "1"]

1. c4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 Nbd7 6. Bf4 0-0 7. e4 c5 8. d5 Re8 9. Bd3 a6 10. 0-0 b6 11. Re1 Nh5 12. Bh2 Ne5 13. Be2 Nxf3+ 14. Bxf3 Nf6 15. Qb3 Nd7 16. Rad1 Rb8 17. a4 Bb7 18. Bg4 Ne5 19. Be2 Nd7 20. f4 e6 21. dxe6 Bd4+ 22. Rxd4 cxd4 23. exd7 Qxd7 24. Nd5 Bxd5 25. exd5 Re3 26. Qd1 Rbe8 27. Kf1 d3 28. Bxd3 Rxe1+ 29. Qxe1 Rxe1+ 30. Kxe1 Qxa4 31. Kd2 Qb4+ 32. Kc2 f5 33. Bg3 Kf7 34. Bf2 Ke7 35. g3 b5 36. b3 bxc4 37. Bxc4 a5 38. Be3 Qe1 39. Bd2 Qxg3 40. Bxa5 Qxf4 41. Bd2 Qe4+ 42. Kc3 f4 43. b4 f3 44. b5 f2 45. b6 Qxc4+ 0-1

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.23"]
[Round "9"]
[White "Hommer, Jeremy"]
[Black "Groth, Matthias"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1570"]
[BlackElo "1710"]
[PlyCount "80"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 a6 6. a4 g6 7. Nf3 Bg7 8. 0-0 Qc7 9. Qe2 Nf6 10. g3 0-0 11. Bf4 Qb6 12. a5 Qd8 13. Bd6 Re8 14. e5 Ng4 15. b4 Nc6 16. h3 Nh6 17. Nd2 Nf5 18. Kh2 Nfd4 19. Qe4 Nf5 20. Ndb1 Nxd6 21. exd6 Nxb4 22. Re1 Rb8 23. Ra4 b5 24. Rxb4 Bb7 25. Qd3 bxc4 26. Rxc4 Qxa5 27. Nd2 Bxc3 28. Rxc3 Qd5 29. Ne4 Qxd3 30. Rxd3 Bxe4 31. Rxe4 Rec8 32. Kg2 Rc6 33. Red4 Rbb6 34. Kf3 f6 35. Ke4 e5 36. Rd5 Kf7 37. f4 exf4 38. gxf4 Ke6 39. f5+ gxf5+ 40. Rxf5 Rb4+ 0-1

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.22"]
[Round "8"]
[White "Groth, Matthias"]
[Black "Raehse, Holger"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "1710"]
[PlyCount "50"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nc3 Be7 4. Nf3 Nf6 5. Bf4 c6 6. e3 0-0 7. Bd3 Nbd7 8. 0-0 b6 9. Qc2 Bb7 10. Rfc1 dxc4 11. Bxc4 Nd5 12. Bg3 Nxc3 13. Qxc3 c5 14. dxc5 Nxc5 15. Rd1 Qc8 16. Rac1 Rd8 17. Nd4 Bf6 18. b4 Ne4 19. Qb2 Bxd4 20. Rxd4 Rxd4 21. exd4 Nxg3 22. hxg3 Qd8 23. Rd1 Bd5 24. Qb3 Rc8 25. Bxd5 Qxd5 1/2-1/2

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.21"]
[Round "7"]
[White "Stolzenwald, Frank"]
[Black "Groth, Matthias"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1627"]
[BlackElo "1710"]
[PlyCount "80"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. b4 e5 2. b5 d5 3. Bb2 Bd6 4. g3 a6 5. a4 axb5 6. axb5 Rxa1 7. Bxa1 Nf6 8. e3 Be6 9. f4 Nbd7 10. Bh3 Qa8 11. Bxe6 fxe6 12. Bxe5 Bxe5 13. fxe5 Nxe5 14. Nf3 Nxf3+ 15. Qxf3 Qa2 16. Qd1 Qc4 17. Nc3 0-0 18. Qe2 Qxe2+ 19. Kxe2 Ra8 20. Rb1 Kf7 21. h3 Ke7 22. Rb4 Ra1 23. Rb1 Rxb1 24. Nxb1 Kd6 25. d4 Ne4 26. g4 e5 27. h4 Ke6 28. c3 Nd6 29. Na3 e4 30. Kf2 h5 31. Kg3 hxg4 32. Kxg4 Nf5 33. Nc2 Nd6 34. Na3 Kf6 35. h5 b6 36. Nc2 Nxb5 37. c4 dxc4 38. Kf4 Nd6 39. Nb4 Ke6 40. d5+ Kf6 0-1

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.20"]
[Round "6"]
[White "Groth, Matthias"]
[Black "Askerov, Imamali"]
[Result "0-1"]
[ECO "A27"]
[WhiteElo "1710"]
[BlackElo "1774"]
[PlyCount "88"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 f5 4. e3 Nf6 5. d4 e4 6. Nd2 Be7 7. Be2 0-0 8. 0-0 Kh8 9. f3 exf3 10. Bxf3 Bb4 11. Ndb1 Bxc3 12. Nxc3 d6 13. b3 Bd7 14. Bb2 Qe8 15. Qd3 Nb4 16. Qd2 Ne4 17. Bxe4 fxe4 18. Rxf8+ Qxf8 19. Nxe4 Qe7 20. Ng3 Nc6 21. Re1 Qg5 22. a3 Rf8 23. Qd3 Re8 24. b4 a6 25. Bc3 h5 26. a4 h4 27. Nf1 Ne7 28. a5 Ng6 29. Bd2 h3 30. Ng3 hxg2 31. e4 Qf6 32. Re2 Rf8 33. Kxg2 Nh4+ 34. Kg1 Bh3 35. Nf5 Bxf5 36. exf5 Nxf5 37. Qh3+ Kg8 38. Bc3 Nxd4 39. Rd2 Qg6+ 40. Qg3 Qxg3+ 41. hxg3 Nf3+ 42. Kg2 Nxd2 43. Bxd2 Re8 44. Kf3 Kf7 0-1

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.19"]
[Round "5"]
[White "Von Estorff, Jacob"]
[Black "Groth, Matthias"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "1780"]
[BlackElo "1710"]
[PlyCount "49"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. 0-0 Be7 9. f4 Nbd7 10. f5 Bxb3 11. cxb3 Nc5 12. Bc4 Ncxe4 13. Nxe4 Nxe4 14. Bxf7+ Kxf7 15. Qd5+ Ke8 16. Qxe4 Qb6+ 17. Be3 Qc6 18. Qg4 Bf6 19. Rac1 Qd7 20. Rfd1 Rc8 21. Rxc8+ Qxc8 22. Rxd6 Qc2 23. h3 Qxb2 24. Qa4+ Kf8 25. Re6 1-0

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.18"]
[Round "4"]
[White "Morio, Estelle"]
[Black "Groth, Matthias"]
[Result "1/2-1/2"]
[ECO "A03"]
[WhiteElo "1675"]
[BlackElo "1710"]
[PlyCount "50"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. f4 d5 2. b3 Nf6 3. Bb2 c5 4. e3 g6 5. Nf3 Bg7 6. Be2 b6 7. 0-0 Nc6 8. Bb5 Bd7 9. d3 0-0 10. Bxc6 Bxc6 11. Qe1 Qc7 12. Nbd2 Rad8 13. Ne5 Bb7 14. Rb1 Nd7 15. Nxd7 Rxd7 16. Bxg7 Kxg7 17. Qg3 f5 18. Nf3 e6 19. Qh4 h6 20. Qg3 Rf6 21. Ne5 Rd8 22. Rbe1 Kh7 23. Qh4 Qg7 24. Rf3 Rg8 25. Rg3 Rh8 1/2-1/2

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.17"]
[Round "3"]
[White "Groth, Matthias"]
[Black "Schroeder, Guido"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "1710"]
[BlackElo "1768"]
[PlyCount "81"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 f5 2. d4 Nf6 3. Nc3 e6 4. g3 d5 5. Bg2 c6 6. Nf3 Bd6 7. c5 Bc7 8. Bg5 0-0 9. Ne5 Nbd7 10. f4 Qe8 11. Bxf6 Nxf6 12. Nd3 Qg6 13. Nb1 Ng4 14. Qc1 Nxh2 15. Kf2 Ng4+ 16. Kg1 Nf6 17. Rh3 Ne4 18. Kh2 Qf6 19. e3 g5 20. Qe1 Qg7 21. Kg1 Rf6 22. Nd2 Bd7 23. Bxe4 fxe4 24. Ne5 Be8 25. Kf2 Rh6 26. Qh1 Rxh3 27. Qxh3 Bxe5 28. Qxe6+ Bf7 29. Qxe5 Qxe5 30. dxe5 Be6 31. b4 a5 32. bxa5 Rxa5 33. Nb3 Ra3 34. Nd4 Bg4 35. f5 Kf7 36. Kg1 Rxe3 37. Rb1 Rxg3+ 38. Kh2 Ra3 39. Rxb7+ Ke8 40. Rb8+ Kd7 41. e6+ 1-0

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.16"]
[Round "2"]
[White "Dousa, Robert"]
[Black "Groth, Matthias"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1411"]
[BlackElo "1710"]
[PlyCount "100"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. g3 a6 5. cxd5 cxd5 6. Bg2 Bf5 7. 0-0 e6 8. Qb3 Nc6 9. Bg5 Be7 10. Nc3 0-0 11. Rac1 Na5 12. Qd1 Rc8 13. Nh4 Bg4 14. h3 Bh5 15. g4 Bg6 16. Nxg6 hxg6 17. e4 dxe4 18. Nxe4 Rxc1 19. Qxc1 Qxd4 20. Rd1 Qb6 21. a3 Nxe4 22. Bxe7 Qxf2+ 23. Kh2 Nb3 24. Qc4 Nbd2 25. Qd3 Qf4+ 26. Kg1 Qf2+ 27. Kh2 Rc8 28. Bb4 Rc2 29. Bxd2 Rxd2 30. Rxd2 Nxd2 31. Kh1 b5 32. b3 Qe1+ 33. Kh2 Qe5+ 34. Kg1 Qe1+ 35. Kh2 Nb1 36. a4 bxa4 37. bxa4 a5 38. Qe4 Qxe4 39. Bxe4 Nc3 40. Bc2 Kf8 41. Kg3 Ke7 42. Kf4 Kd6 43. h4 e5+ 44. Ke3 Nd5+ 45. Ke4 f5+ 46. gxf5 gxf5+ 47. Kf3 e4+ 48. Bxe4 fxe4+ 49. Kxe4 Nc3+ 50. Kf5 Ke7 0-1

[Event "Lueneburg op-B"]
[Site "Lueneburg"]
[Date "2015.08.15"]
[Round "1"]
[White "Groth, Matthias"]
[Black "Thorn, Volker"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1710"]
[PlyCount "41"]
[EventDate "2015.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 f5 2. d4 Nf6 3. Nc3 e6 4. Nf3 Be7 5. Bg5 c6 6. e3 d5 7. Bd3 0-0 8. 0-0 Bd7 9. Qb3 b6 10. Bxf6 Bxf6 11. cxd5 exd5 12. Nxd5 Be6 13. Nxf6+ Qxf6 14. Bc4 Bxc4 15. Qxc4+ Kh8 16. Ne5 b5 17. Qc5 Rd8 18. Rac1 Rd6 19. Qxd6 Na6 20. Qxf6 gxf6 21. Nxc6 1-0

[Event "Lauenburg op"]
[Site "Lauenburg"]
[Date "2009.05.03"]
[Round "5"]
[White "Kolbach, Juliane"]
[Black "Groth, Matthias"]
[Result "0-1"]
[ECO "B56"]
[PlyCount "78"]
[EventDate "2009.05.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5 Bd7 7. 0-0 e5 8. Nf3 a6 9. Bc4 Bg4 10. Bg5 Nd4 11. Be2 Nxe2+ 12. Qxe2 Be7 13. Qd3 0-0 14. Rad1 Ne8 15. Bxe7 Qxe7 16. Rd2 Rd8 17. h3 Bxf3 18. Qxf3 Nc7 19. Rfd1 Qe6 20. a4 Rd7 21. Nd5 Nxd5 22. Rxd5 f5 23. c4 Rc7 24. Rxd6 Qxc4 25. Rd8 Qxe4 26. Qb3+ Qc4 27. Qa3 Qc5 28. Qb3+ Kh8 29. Rxf8+ Qxf8 30. Qb4 Kg8 31. Qb3+ Kh8 32. Qb4 Rf7 33. Qb6 Qe7 34. Rd8+ Rf8 35. Rd6 h6 36. Re6 Qg5 37. Rxe5 Qc1+ 38. Kh2 Qf4+ 39. g3 Qxe5 0-1

[Event "Lauenburg op"]
[Site "Lauenburg"]
[Date "2009.05.02"]
[Round "4"]
[White "Groth, Matthias"]
[Black "Costello, Colin"]
[Result "0-1"]
[ECO "A28"]
[BlackElo "2039"]
[PlyCount "44"]
[EventDate "2009.05.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 d5 5. cxd5 Nxd5 6. Bc4 Nb6 7. Bb5 Bd6 8. Bxc6+ bxc6 9. d4 exd4 10. Nxd4 Qd7 11. e4 Ba6 12. Nf5 0-0-0 13. Nxd6+ cxd6 14. Be3 Rhe8 15. Qb3 Nc4 16. Bf4 Qg4 17. Qa4 Kb7 18. Qb4+ Ka8 19. Qa4 Qxf4 20. Qxc6+ Bb7 21. Qxc4 d5 22. Qb5 d4 0-1

[Event "Lauenburg op"]
[Site "Lauenburg"]
[Date "2009.05.02"]
[Round "3"]
[White "Spaeth, Rolf"]
[Black "Groth, Matthias"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "96"]
[EventDate "2009.05.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Qxf3 Nc6 6. Bb5 Bd7 7. Be3 a6 8. Bd3 g6 9. h3 Nb4 10. 0-0-0 Nxd3+ 11. Rxd3 Bf5 12. Rd2 c6 13. Nge2 Nd5 14. Nxd5 Qxd5 15. Qxd5 cxd5 16. g4 Bd7 17. Nc3 e6 18. a3 Rc8 19. Bf4 Bxa3 20. Rd3 Be7 21. g5 Rc6 22. Re1 0-0 23. h4 Bd6 24. Ne2 Bxf4+ 25. Nxf4 Rfc8 26. c3 b5 27. Kc2 b4 28. h5 bxc3 29. bxc3 Rb6 30. hxg6 hxg6 31. Rh3 Ba4+ 32. Kd3 Rb3 33. Ne2 Rd8 34. Reh1 Kf8 35. Kc2 Rdb8 36. Rh8+ Ke7 37. Rxb8 Rxb8+ 38. Kc1 Bb5 39. Ng1 Bd3 40. Kd2 Be4 41. Rh3 Rb2+ 42. Ke3 a5 43. Rh8 Rg2 44. Nf3 Rg3 45. Ra8 Rxf3+ 46. Kd2 Rf2+ 47. Kc1 Ra2 48. Ra7+ Kf8 0-1

[Event "Lauenburg op"]
[Site "Lauenburg"]
[Date "2009.05.01"]
[Round "2"]
[White "Groth, Matthias"]
[Black "Jahncke, Giso"]
[Result "0-1"]
[ECO "A68"]
[BlackElo "2106"]
[PlyCount "42"]
[EventDate "2009.05.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. f4 c5 6. d5 0-0 7. Nf3 e6 8. Be2 exd5 9. cxd5 Bg4 10. 0-0 Nbd7 11. h3 Bxf3 12. Bxf3 a6 13. a4 Qa5 14. Bd2 c4 15. Re1 Rfe8 16. b4 cxb3 17. Qxb3 Nc5 18. Qd1 Nfd7 19. Nb5 Qb6 20. Nc3 Nxe4+ 21. Be3 Nxc3 0-1

[Event "Lauenburg op"]
[Site "Lauenburg"]
[Date "2009.05.01"]
[Round "1"]
[White "Kirchner, Holger"]
[Black "Groth, Matthias"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "54"]
[EventDate "2009.05.01"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Nf3 Bd6 5. Ng3 Nf6 6. Bc4 a6 7. a3 b5 8. Ba2 Bb7 9. d3 c5 10. 0-0 Nbd7 11. Nf5 Bf8 12. Ng5 c4 13. dxc4 h6 14. Nf3 Bxe4 15. Ng3 Bh7 16. cxb5 axb5 17. Re1 Be7 18. Nxe5 Nxe5 19. Rxe5 0-0 20. Rxb5 Qd7 21. Qe2 d3 22. Qe1 Qxb5 23. Qxe7 Rae8 24. Qb4 Qxb4 25. axb4 Re1+ 26. Nf1 d2 27. Bxf7+ Kh8 0-1

[Event "Harburg-chF 4th"]
[Site "Hamburg"]
[Date "2006.08.13"]
[Round "5"]
[White "Groth, Matthias"]
[Black "Benthin, Thomas"]
[Result "1-0"]
[ECO "D13"]
[PlyCount "67"]
[EventDate "2006.08.??"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. cxd5 cxd5 4. d4 Nf6 5. Bg5 Nc6 6. Nf3 e6 7. a3 Be7 8. e3 a6 9. Bd3 0-0 10. Rc1 Ne8 11. Bf4 Nf6 12. h3 Bd6 13. Bxd6 Qxd6 14. Qe2 Bd7 15. 0-0 Rfe8 16. Rc2 e5 17. dxe5 Nxe5 18. Rd1 Nxd3 19. Qxd3 Qe6 20. Rcd2 Bc6 21. Nd4 Qe5 22. Nxc6 bxc6 23. Na4 Qc7 24. Rc2 Nd7 25. Qxd5 cxd5 26. Rxc7 Nf6 27. Nc3 Rab8 28. b4 Red8 29. Rc5 Ne4 30. Rcxd5 Rxd5 31. Nxd5 a5 32. Rd4 axb4 33. Rxe4 b3 34. Rb4 1-0

[Event "Harburg-chF 4th"]
[Site "Hamburg"]
[Date "2006.08.13"]
[Round "4"]
[White "Scharffenberg, Horst"]
[Black "Groth, Matthias"]
[Result "0-1"]
[ECO "A23"]
[PlyCount "38"]
[EventDate "2006.08.??"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. g3 e6 4. Bg2 d5 5. cxd5 exd5 6. d4 cxd4 7. Qxd4 Nc6 8. Qd1 d4 9. Ne4 Nxe4 10. Bxe4 Bb4+ 11. Bd2 Qa5 12. Nf3 0-0 13. Bxc6 bxc6 14. Nxd4 Rd8 15. Nxc6 Bxd2+ 16. Kf1 Bh3+ 17. Kg1 Qc5 18. Nxd8 Qd5 19. e4 Qxe4 0-1

[Event "Harburg-chF 4th"]
[Site "Hamburg"]
[Date "2006.08.12"]
[Round "3"]
[White "Ahrens, Andre"]
[Black "Groth, Matthias"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "68"]
[EventDate "2006.08.??"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. Be3 e5 8. dxe5 Bxf3 9. Qxf3 Nxe5 10. Qf4 Bd6 11. Qd4 Nc6 12. Qd2 dxc4 13. Bxc4 0-0 14. 0-0 Ng4 15. Bf4 Bxf4 16. Qxf4 Nf6 17. Rad1 Qb6 18. Nd5 Nxd5 19. Rxd5 Na5 20. Rb5 Qd8 21. Be2 b6 22. Rd1 Qe7 23. Re5 Qc7 24. Qe4 Rad8 25. Bd3 g6 26. h4 Nc6 27. Rg5 Rfe8 28. Qc4 Rd4 29. Qb3 Qd6 30. Rg3 Rd8 31. h5 Ne5 32. hxg6 hxg6 33. f4 Nxd3 34. Rf3 Nc5 0-1

[Event "Harburg-chF 4th"]
[Site "Hamburg"]
[Date "2006.08.12"]
[Round "2"]
[White "Groth, Matthias"]
[Black "Besch, Fabian"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "73"]
[EventDate "2006.08.??"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Bd3 Bg4 6. 0-0 Ne7 7. Bg5 f6 8. Be3 c6 9. Re1 Qc7 10. h3 Bh5 11. c4 dxc4 12. Bxc4 Nd7 13. Nbd2 Nb6 14. Bb3 0-0-0 15. Qc2 Bg6 16. Qc3 Ned5 17. Bxd5 Nxd5 18. Qb3 Bf7 19. Ne4 Rhe8 20. Nxd6+ Rxd6 21. Qd3 Bg6 22. Qd2 Rde6 23. b4 Qe7 24. b5 Qb4 25. bxc6 Rxc6 26. Rac1 Rxc1 27. Qxc1+ Kd7 28. Nh4 Rc8 29. Qd1 Bc2 30. Qg4+ Kd8 31. Nf3 Bg6 32. Qe6 Nxe3 33. Rxe3 Rc7 34. Qg8+ Kd7 35. Qxg7+ Kc6 36. Qxf6+ Kb5 37. Rb3 1-0

[Event "Harburg-chF 4th"]
[Site "Hamburg"]
[Date "2006.08.11"]
[Round "1"]
[White "Howe, Dietrich"]
[Black "Groth, Matthias"]
[Result "1-0"]
[ECO "A09"]
[PlyCount "111"]
[EventDate "2006.08.??"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. b4 f6 4. d3 e5 5. a3 c5 6. bxc5 Bxc5 7. g3 Nc6 8. Bg2 Bd7 9. 0-0 g5 10. Nbd2 h5 11. Ne4 Qe7 12. Nxc5 Qxc5 13. Rb1 b6 14. e3 0-0-0 15. exd4 Nxd4 16. Nxd4 Qxd4 17. Qf3 e4 18. Qxe4 Qxe4 19. Bxe4 Be6 20. Rd1 Ne7 21. Bb2 Rhf8 22. a4 Nf5 23. d4 Nd6 24. Bd3 Kc7 25. d5 Bg4 26. Re1 Nb7 27. Bd4 Kd6 28. Be2 Bf5 29. Rbc1 h4 30. Bf3 Rc8 31. Be4 Bd7 32. Re3 f5 33. Bg2 f4 34. Be5+ Kc5 35. Ree1 f3 36. Bf1 hxg3 37. hxg3 g4 38. Bb2 Kd6 39. Ba3+ Nc5 40. Bb2 Rce8 41. Rxe8 Rxe8 42. Ba3 Bxa4 43. Bxc5+ Kxc5 44. Ra1 Kb4 45. Bd3 a5 46. Rb1+ Kc5 47. Rc1 Bd7 48. Bf1 Re4 49. Bd3 Rd4 50. Bf1 Ba4 51. Rb1 Bd1 52. Rb5+ Kd6 53. Rxb6+ Ke5 54. Re6+ Kf5 55. Re3 Re4 56. Bd3 1-0

