[Event "Deizisau Autumn op 14th"]
[Site "Deizisau"]
[Date "2019.10.28"]
[Round "7"]
[White "Marquardt, Alexander"]
[Black "Sommer, Konstantin"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2125"]
[BlackElo "1821"]
[PlyCount "125"]
[EventDate "2019.10.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e3 d5 4. Nf3 b6 5. d4 Bb4 6. Qa4+ Nc6 7. Ne5 Bxc3+ 8. bxc3 Bd7 9. Nxc6 0-0 10. Nxd8 Bxa4 11. cxd5 Raxd8 12. dxe6 fxe6 13. Bc4 Ne4 14. Bxe6+ Kh8 15. 0-0 Nxc3 16. Ba3 c5 17. dxc5 Nb5 18. Bb3 Nxa3 19. Bxa4 b5 20. Bb3 b4 21. Rac1 Nb5 22. Be6 Nc3 23. c6 Rd6 24. Bd7 Ne2+ 25. Kh1 Nxc1 26. Rxc1 Kg8 27. Bg4 h5 28. Bxh5 Rc8 29. Bf3 Rc7 30. h3 Kf8 31. Rc4 Rd2 32. Rxb4 Rxa2 33. Rf4+ Ke7 34. Bd5 Ra1+ 35. Kh2 a5 36. e4 Kd6 37. Rf8 a4 38. Ra8 a3 39. f4 Ke7 40. Kg3 Kf6 41. Kg4 Kg6 42. h4 Kf6 43. g3 g6 44. Kf3 a2 45. Kg4 Kg7 46. Ra6 Kh6 47. Bxa2 Re7 48. e5 Rc1 49. Bd5 Rc5 50. Be4 Rc4 51. Kf3 Rc3+ 52. Kf2 Rc4 53. Ke3 Rc3+ 54. Kd4 Rxg3 55. Kd5 Rc3 56. Kd6 Rf7 57. f5 gxf5 58. Bd5 Rd3 59. c7 Rxc7 60. Kxc7+ Kg7 61. Kd6 f4 62. Ra4 f3 63. Rf4 1-0

[Event "Deizisau Autumn op 14th"]
[Site "Deizisau"]
[Date "2019.10.25"]
[Round "1"]
[White "Sommer, Konstantin"]
[Black "Krassowizkij, Jaroslaw"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1821"]
[BlackElo "2436"]
[PlyCount "80"]
[EventDate "2019.10.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Be2 0-0 7. f4 Nbd7 8. Nf3 exf4 9. 0-0 Ne5 10. Bxf4 Ng6 11. Bc1 Ng4 12. h3 N4e5 13. Nxe5 Nxe5 14. Bf4 Bf6 15. Bxe5 Bxe5 16. Bg4 Qh4 17. Bxc8 Raxc8 18. Qd3 Rce8 19. Rab1 Bd4+ 20. Kh1 Bxc3 21. bxc3 b6 22. Rbe1 f5 23. e5 dxe5 24. d6 e4 25. Qd5+ Kh8 26. Re2 g6 27. Rd1 Rd8 28. Qb7 Qf6 29. d7 Qe6 30. Qxa7 f4 31. Rb2 f3 32. Qc7 e3 33. Rxb6 e2 34. Rxe6 exd1Q+ 35. Kh2 Qxd7 36. Qe5+ Qg7 37. Qxc5 f2 38. Re7 f1Q 39. Rxg7 Qf4+ 40. Kh1 Rd1+ 0-1

[Event "Reutlingen op 18th"]
[Site "Reutlingen"]
[Date "2013.05.17"]
[Round "1"]
[White "Aguettaz, Maxime"]
[Black "Sommer, Konstantin"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2402"]
[BlackElo "1800"]
[PlyCount "51"]
[EventDate "2013.05.17"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 0-0 5. Bg2 d6 6. d3 Bd7 7. Nbd2 a6 8. 0-0 Nc6 9. a3 Qc8 10. Re1 Bh3 11. Bh1 Bg4 12. c4 Re8 13. c5 d5 14. Ne5 Nxe5 15. Bxe5 c6 16. Ra2 Nd7 17. Bxg7 Kxg7 18. Qa1+ e5 19. e4 d4 20. Nc4 Qc7 21. Nd6 Re7 22. f4 f6 23. Rf1 b6 24. fxe5 fxe5 25. Qc1 Rd8 26. Qg5 1-0

[Event "Wiesbaden op 23rd"]
[Site "Wiesbaden"]
[Date "2011.08.28"]
[Round "7"]
[White "Kuenitz, Klaus"]
[Black "Sommer, Konstantin"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "1684"]
[BlackElo "1494"]
[PlyCount "53"]
[EventDate "2011.08.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e5 5. Nb5 d5 6. cxd5 Bc5 7. Bg5 Ne4 8. Be3 Bxe3 9. fxe3 Qh4+ 10. g3 Nxg3 11. hxg3 Qxh1 12. Nc7+ Kd8 13. Nxa8 Bh3 14. Nd2 Qg1 15. Qb3 Qxg3+ 16. Kd1 Bc8 17. d6 Qg6 18. Nc7 Qxd6 19. Nb5 Qb6 20. Qd5+ Bd7 21. Nd6 Kc7 22. N2c4 Ba4+ 23. b3 Bxb3+ 24. axb3 Qxb3+ 25. Ke1 Qc3+ 26. Kf2 Qxa1 27. Qxb7+ 1-0

[Event "Wiesbaden op 23rd"]
[Site "Wiesbaden"]
[Date "2011.08.28"]
[Round "6"]
[White "Traut, Stefan"]
[Black "Sommer, Konstantin"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "1776"]
[BlackElo "1494"]
[PlyCount "40"]
[EventDate "2011.08.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 c5 4. e3 Bg7 5. Nc3 0-0 6. Be2 d6 7. 0-0 Nbd7 8. b3 b6 9. Bb2 Bb7 10. Qc2 e6 11. Rad1 Qe7 12. Rfe1 Rfd8 13. e4 cxd4 14. Nxd4 Nc5 15. Bf3 Rac8 16. Qe2 a6 17. h4 h5 18. g3 Ncd7 19. Nc2 Ne5 20. Bg2 Nfg4 1/2-1/2

[Event "Wiesbaden op 23rd"]
[Site "Wiesbaden"]
[Date "2011.08.27"]
[Round "4"]
[White "Diener, Carolin Valeria"]
[Black "Sommer, Konstantin"]
[Result "1-0"]
[ECO "B12"]
[BlackElo "1494"]
[PlyCount "41"]
[EventDate "2011.08.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. f3 Nd7 4. Nc3 e6 5. Be3 Nb6 6. Bd3 Nf6 7. e5 Nfd7 8. f4 c5 9. Nf3 f5 10. Ng5 Nb8 11. dxc5 h6 12. Qh5+ Kd7 13. cxb6 Bb4 14. Qf7+ Qe7 15. Qxe7+ Kxe7 16. Nf3 Nc6 17. bxa7 Rd8 18. Bd2 Rxa7 19. 0-0 g5 20. fxg5 hxg5 21. Bxg5+ 1-0

[Event "Wiesbaden op 23rd"]
[Site "Wiesbaden"]
[Date "2011.08.27"]
[Round "5"]
[White "Sommer, Konstantin"]
[Black "Bangert, Martin"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "1494"]
[PlyCount "49"]
[EventDate "2011.08.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 4. c4 e6 5. Nc3 c6 6. Bd3 Bb4 7. 0-0 0-0 8. Ne4 Nxe4 9. Bxe4 d5 10. Bd3 Nd7 11. a3 Be7 12. Qc2 f5 13. Bd2 a5 14. Rac1 Ba6 15. cxd5 Bxd3 16. Qxd3 cxd5 17. Rc6 Rf6 18. Rfc1 e5 19. dxe5 Rxc6 20. Rxc6 Nb8 21. Re6 g6 22. Rxe7 Qxe7 23. Qxd5+ Kg7 24. Qxa8 Qc5 25. Qb7+ 1-0

[Event "Wiesbaden op 23rd"]
[Site "Wiesbaden"]
[Date "2011.08.26"]
[Round "2"]
[White "Larem, Peter"]
[Black "Sommer, Konstantin"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "1914"]
[BlackElo "1494"]
[PlyCount "69"]
[EventDate "2011.08.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nf6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Nbd7 12. 0-0-0 Bd6 13. Ne4 Nxe4 14. Qxe4 Nf6 15. Qe2 Nd5 16. Ne5 Nf6 17. Rhe1 Qc7 18. Kb1 0-0-0 19. Qf3 Bxe5 20. dxe5 Nd5 21. c4 Nb6 22. Ba5 Rxd1+ 23. Qxd1 Rd8 24. Qe2 c5 25. f4 Qd7 26. Bxb6 axb6 27. Kc2 Qa4+ 28. Kb1 Qb4 29. Rd1 Rxd1+ 30. Qxd1 Qxc4 31. Qg4 Qf1+ 32. Kc2 Qf2+ 33. Kb3 Qe3+ 34. Kc2 Qf2+ 35. Kb3 1/2-1/2

[Event "Wiesbaden op 23rd"]
[Site "Wiesbaden"]
[Date "2011.08.26"]
[Round "3"]
[White "Sommer, Konstantin"]
[Black "Schellen, Sven"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "1494"]
[BlackElo "1754"]
[PlyCount "64"]
[EventDate "2011.08.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Bd3 e6 5. Nbd2 Nbd7 6. c3 Be7 7. e4 dxe4 8. Nxe4 0-0 9. 0-0 Re8 10. Bf4 Nd5 11. Bg3 f5 12. c4 fxe4 13. Bxe4 N5f6 14. Bxb7 Rb8 15. Qb3 Ne4 16. Bxe4 Rxb3 17. axb3 Bxf3 18. Bxf3 Qb8 19. Bg4 Bd6 20. Rfe1 Kf7 21. d5 Nc5 22. b4 Bxg3 23. fxg3 Qxb4 24. Rf1+ Kg8 25. Rae1 Qb6 26. b4 Qxb4 27. dxe6 Qb6 28. Rb1 Qd6 29. Rbd1 Nd3 30. Kh1 Qd4 31. Rd2 Qxg4 32. Rxd3 Qxe6 0-1

[Event "Wiesbaden op 23rd"]
[Site "Wiesbaden"]
[Date "2011.08.25"]
[Round "1"]
[White "Sommer, Konstantin"]
[Black "Brechlin, Olaf"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "1494"]
[BlackElo "2050"]
[PlyCount "50"]
[EventDate "2011.08.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. Bd3 Nbd7 5. h3 Bh5 6. Nbd2 e6 7. c3 Be7 8. e4 dxe4 9. Nxe4 Bg6 10. Nxf6+ Bxf6 11. Bxg6 hxg6 12. Bf4 g5 13. Be5 g4 14. Bxf6 Qxf6 15. Ng1 Qg6 16. h4 Qe4+ 17. Kf1 0-0-0 18. Qe2 Qf5 19. Rc1 Nf6 20. f3 Nh5 21. Kf2 Nf4 22. fxg4 Nh3+ 23. Kg3 Qf4+ 24. Kxh3 Rxh4+ 25. Kxh4 Rh8# 0-1

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.18"]
[Round "9"]
[White "Martin, Raphael"]
[Black "Sommer, Konstantin"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "1431"]
[BlackElo "1502"]
[PlyCount "31"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Qa4+ Bd7 6. Qb3 g6 7. Qxb7 Qb6 8. Qxa8 Bc8 9. d6 Bg7 10. Nc3 0-0 11. Qf3 Bb7 12. Qe3 Qc6 13. Nf3 exd6 14. Bb5 Qc7 15. 0-0 d5 16. d4 1-0

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.17"]
[Round "8"]
[White "Sommer, Konstantin"]
[Black "Alt, Elisabeth"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1502"]
[BlackElo "1402"]
[PlyCount "103"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. e3 Bg4 4. Bd3 e5 5. dxe5 Nxe5 6. Be2 Bd6 7. Nxe5 Bxe2 8. Qxe2 Bxe5 9. e4 Ne7 10. 0-0 0-0 11. exd5 Qxd5 12. Rd1 Qe6 13. Nd2 Bxh2+ 14. Kf1 Qxe2+ 15. Kxe2 Bd6 16. b3 Nd5 17. Bb2 Rfe8+ 18. Kf1 Rad8 19. Nc4 Bb4 20. a3 Bc5 21. b4 Be7 22. Na5 Nf6 23. Nxb7 Rb8 24. Na5 c5 25. Nc6 Rb7 26. Nxe7+ Rbxe7 27. Bxf6 gxf6 28. Re1 cxb4 29. Rxe7 Rxe7 30. axb4 Rc7 31. Rc1 Kf8 32. c4 a6 33. Ke2 Rb7 34. Rb1 Ke8 35. Kd3 h5 36. Rb2 Rb8 37. c5 Kd7 38. Kc4 Kc6 39. Rd2 f5 40. Rd6+ Kb7 41. Rb6+ Ka7 42. Rxb8 Kxb8 43. g3 f4 44. Kd5 Kc7 45. Ke5 fxg3 46. fxg3 Kc6 47. Kf6 Kb5 48. Kxf7 a5 49. bxa5 Kxc5 50. Kg6 Kb5 51. Kxh5 Kxa5 52. g4 1-0

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.16"]
[Round "7"]
[White "Mann, Jonas"]
[Black "Sommer, Konstantin"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1381"]
[BlackElo "1502"]
[PlyCount "94"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. Nc3 c5 2. e4 Nc6 3. f4 d6 4. Bc4 g6 5. Nf3 Bg7 6. 0-0 Nf6 7. d3 Bd7 8. Qe1 Na5 9. Bb3 a6 10. Ng5 Nxb3 11. axb3 h6 12. e5 hxg5 13. exf6 Bxf6 14. fxg5 Be5 15. Bf4 Bd4+ 16. Kh1 Bc6 17. Bg3 Qd7 18. Ne4 Bxe4 19. Qxe4 Bxb2 20. Rab1 Bg7 21. Qd5 Rf8 22. Rbe1 Rd8 23. Bf2 b6 24. Bg3 e5 25. c3 f5 26. gxf6 Bxf6 27. d4 cxd4 28. cxd4 b5 29. dxe5 dxe5 30. Rxe5+ Bxe5 31. Qxe5+ Qe7 32. Qxe7+ Kxe7 33. Bh4+ Kd7 34. Rd1+ Kc7 35. Bxd8+ Rxd8 36. Rc1+ Kb6 37. h3 a5 38. Re1 Kc5 39. Re6 Rd6 40. Re4 Rd3 41. Rg4 Rxb3 42. Rxg6 a4 43. Kg1 a3 44. Kf2 a2 45. Ra6 Rb2+ 46. Kf3 Kb4 47. h4 Rb3+ 0-1

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.14"]
[Round "5"]
[White "Mueller, Philipp1111"]
[Black "Sommer, Konstantin"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "1328"]
[BlackElo "1502"]
[PlyCount "40"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Nf3 Qb6 7. Nc3 c5 8. Qb5+ Nd7 9. Qxb6 Nxb6 10. Ne2 Rc8 11. 0-0 Ne7 12. c3 Nf5 13. Rd1 c4 14. Bf4 h6 15. h3 Rc6 16. Rdc1 Be7 17. Bd2 0-0 18. Rab1 Rb8 19. g3 Nd7 20. b3 Nb6 1/2-1/2

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.14"]
[Round "6"]
[White "Sommer, Konstantin"]
[Black "Cejda, Moritz"]
[Result "1-0"]
[ECO "A95"]
[WhiteElo "1502"]
[BlackElo "1179"]
[PlyCount "83"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. d4 f5 2. g3 e6 3. Bg2 Nf6 4. c4 Be7 5. Nc3 c6 6. Nf3 0-0 7. 0-0 d5 8. b3 b6 9. Ne5 Bb7 10. Na4 Nbd7 11. Nf3 Ne4 12. Qc2 b5 13. Nb2 a6 14. Nd3 c5 15. cxb5 axb5 16. dxc5 Nexc5 17. Bb2 Nxd3 18. Qxd3 Bc6 19. Nd4 Ne5 20. Qe3 Qd6 21. f4 Ng4 22. Qxe6+ Qxe6 23. Nxe6 Bf6 24. Bxf6 Rxf6 25. Nc7 Rd8 26. Rfc1 Ne3 27. Bf3 Rc8 28. Nxd5 Nxd5 29. Bxd5+ Kf8 30. Bxc6 Rcxc6 31. Rxc6 Rxc6 32. a4 Ra6 33. a5 Ke7 34. b4 Ke6 35. Rc1 Kd5 36. Rc5+ Ke4 37. Rxb5 Ke3 38. Rb6 Ra7 39. a6 Kxe2 40. b5 Re7 41. Rb7 Re8 42. Kg2 1-0

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.14"]
[Round "4"]
[White "Sommer, Konstantin"]
[Black "Reyher, Susan"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "1502"]
[BlackElo "1320"]
[PlyCount "34"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Bd6 7. 0-0 0-0 8. dxc5 Bxc5 9. e4 Qc7 10. exd5 exd5 11. Qc2 Bg4 12. h3 Bh5 13. Ng5 Bg6 14. Bxg6 hxg6 15. Ndf3 Nh5 16. Kh1 Rfe8 17. Qd3 Rad8 1/2-1/2

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.13"]
[Round "3"]
[White "Klinge, Sabina"]
[Black "Sommer, Konstantin"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "1101"]
[BlackElo "1502"]
[PlyCount "50"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Ne5 Nf6 5. d4 Nbd7 6. Bf4 Nxe5 7. Bxe5 e6 8. Bd3 Be7 9. 0-0 Qb6 10. b3 Bd7 11. Nd2 Rc8 12. c4 0-0 13. Rc1 a6 14. Nf3 Bc6 15. Re1 Nd7 16. Qc2 g6 17. Qb1 dxc4 18. bxc4 Qxb1 19. Rxb1 Bxf3 20. gxf3 Nxe5 21. Rxe5 Bf6 22. Re4 Rc7 23. Rf4 Bg7 24. Bf1 Rd8 25. Re4 Bxd4 0-1

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.12"]
[Round "1"]
[White "Riedel, Erich"]
[Black "Sommer, Konstantin"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "1137"]
[BlackElo "1502"]
[PlyCount "100"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nf6 7. c3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. 0-0 Nbd7 11. Be3 Nd5 12. Rfe1 N7f6 13. Rac1 Nxe3 14. fxe3 Bxg3 15. hxg3 Qc7 16. Ne5 Nd7 17. Nxd7 Qxd7 18. e4 0-0 19. e5 Rad8 20. Rcd1 c5 21. Re4 Qc6 22. Rh4 h6 23. g4 Rfe8 24. Rf1 cxd4 25. cxd4 Qd5 26. g5 h5 27. Kh1 g6 28. Kh2 Qxe5+ 29. Rhf4 Qc7 30. g3 Rd7 31. Qb5 Rc8 32. Kg1 Qc6 33. Qe5 b6 34. Qe2 Rdc7 35. g4 Qd5 36. gxh5 Rc2 37. Qg4 gxh5 38. Qg3 Rc1 39. g6 Rxf1+ 40. Rxf1 Qxd4+ 41. Kh1 Qe4+ 42. Qf3 Qxf3+ 43. Rxf3 fxg6 44. Rf6 Kg7 45. Rxe6 Rc1+ 46. Kg2 Rc2+ 47. Kg3 Kh6 48. Re7 a6 49. Ra7 a5 50. Ra6 Rxb2 0-1

[Event "GER-chB U25"]
[Site "Oberhof"]
[Date "2011.06.12"]
[Round "2"]
[White "Sommer, Konstantin"]
[Black "Wolf, Sascha"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "1502"]
[BlackElo "1358"]
[PlyCount "72"]
[EventDate "2011.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. e3 d6 4. Bd3 Nc6 5. 0-0 e5 6. c3 d5 7. dxe5 Nxe5 8. Nxe5 Bxe5 9. Nd2 f5 10. Nf3 Bg7 11. c4 b6 12. cxd5 Qxd5 13. Qe2 Bb7 14. Rd1 0-0-0 15. Rd2 Qa5 16. e4 Nf6 17. exf5 Rhe8 18. Qd1 Rxd3 19. Rxd3 Bxf3 20. Bd2 Bxd1 21. Bxa5 Bc2 22. Rd2 Bxf5 23. Bc3 Ne4 24. Re2 Bxc3 25. bxc3 Rd8 26. Rc1 Nxc3 27. Ree1 h5 28. h3 Nd5 29. Re5 Nb4 30. Re7 Rd7 31. Re8+ Kb7 32. a3 Nc6 33. Rg8 Nd4 34. Kh2 Nc2 35. a4 Rd2 36. f3 Ne3 0-1

