[Event "Goch op 26th"]
[Site "Goch"]
[Date "2015.09.06"]
[Round "6"]
[White "Beckmann, Arne"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "A44"]
[WhiteElo "1922"]
[BlackElo "1845"]
[PlyCount "53"]
[EventDate "2015.09.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. d5 d6 5. c4 e5 6. Nc3 Ne7 7. Bd3 0-0 8. 0-0 f5 9. Ne1 f4 10. g4 g5 11. f3 Ng6 12. Bd2 Nd7 13. a3 Nf6 14. b4 b6 15. bxc5 bxc5 16. Rb1 h5 17. h3 hxg4 18. hxg4 Nh4 19. Be2 Kf7 20. Ng2 Rh8 21. Kf2 Bd7 22. Rb7 a6 23. Qb3 Nxg2 24. Kxg2 Qg8 25. Qb1 Rh4 26. Rh1 Qh7 27. Qg1 1/2-1/2

[Event "Goch op 26th"]
[Site "Goch"]
[Date "2015.09.06"]
[Round "7"]
[White "Lessing, Sebastian"]
[Black "Schneider, Reinhold"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "1845"]
[BlackElo "1617"]
[PlyCount "55"]
[EventDate "2015.09.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Nf3 Bd6 5. Ng3 Nc6 6. Bc4 Be6 7. Bxe6 fxe6 8. 0-0 Qe7 9. d3 h6 10. Nd2 0-0-0 11. Nc4 Nf6 12. Nxd6+ Rxd6 13. f4 exf4 14. Bxf4 Rdd8 15. a3 g6 16. b4 e5 17. Bd2 Qe6 18. b5 Ne7 19. Bb4 h5 20. Qd2 h4 21. Ne2 Rh5 22. h3 g5 23. Bxe7 Qxe7 24. Rf5 g4 25. Rxh5 Nxh5 26. hxg4 Ng3 27. Kh2 Rh8 28. Ng1 1/2-1/2

[Event "Goch op 26th"]
[Site "Goch"]
[Date "2015.09.05"]
[Round "5"]
[White "Lessing, Sebastian"]
[Black "Roth, Jan Paul"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "1845"]
[BlackElo "1723"]
[PlyCount "82"]
[EventDate "2015.09.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 dxe4 3. Nxe4 Bf5 4. Ng3 Bg6 5. Nf3 Nf6 6. Bc4 e6 7. 0-0 Nbd7 8. d4 Nb6 9. Bb3 Be7 10. c3 0-0 11. Ne5 c5 12. Be3 Nbd5 13. Nxg6 hxg6 14. Qf3 Nxe3 15. fxe3 Qc7 16. Ne4 c4 17. Bc2 Nd5 18. Qe2 b5 19. a3 f5 20. Nd2 Bg5 21. Rf3 Nf6 22. Nf1 Bh6 23. e4 Rae8 24. e5 Nd5 25. h4 a5 26. Nd2 Qe7 27. g3 g5 28. hxg5 Qxg5 29. Nf1 a4 30. Re1 Qh5 31. Qg2 f4 32. g4 Qh4 33. Re2 Ne3 34. Nxe3 fxe3 35. Rh3 Qg5 36. Rh5 Rf2 37. Rxg5 Rxg2+ 38. Kxg2 Bxg5 39. Be4 Kf7 40. Bc6 Rb8 41. Kf3 Ke7 1/2-1/2

[Event "Goch op 26th"]
[Site "Goch"]
[Date "2015.09.05"]
[Round "4"]
[White "Venhoff, Michael"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "A44"]
[WhiteElo "1995"]
[BlackElo "1845"]
[PlyCount "53"]
[EventDate "2015.09.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 e5 6. Bd3 Ne7 7. Nge2 f5 8. 0-0 Nd7 9. a3 Nf6 10. b4 b6 11. Bd2 0-0 12. Qb3 f4 13. f3 g5 14. g4 Ng6 15. a4 Nh4 16. a5 bxa5 17. bxc5 dxc5 18. Na4 Nd7 19. Qb5 Rb8 20. Qxa5 Qe7 21. Kf2 Rf6 22. Rfb1 Rxb1 23. Rxb1 Ra6 24. Qc7 Rxa4 25. Qxc8+ Nf8 26. Rb7 Qd6 27. Qe8 1-0

[Event "Goch op 26th"]
[Site "Goch"]
[Date "2015.09.04"]
[Round "3"]
[White "Lessing, Sebastian"]
[Black "Debbeler, Bernard"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1845"]
[BlackElo "1344"]
[PlyCount "121"]
[EventDate "2015.09.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Nf3 Nc6 4. Bc4 Bb4 5. d3 h6 6. 0-0 0-0 7. Nd5 d6 8. h3 Bc5 9. Be3 Bxe3 10. fxe3 Nxd5 11. Bxd5 Ne7 12. Bb3 Be6 13. Nh4 Bxb3 14. axb3 d5 15. Qg4 Qc8 16. Nf5 Nxf5 17. exf5 f6 18. Rf3 Qe8 19. Rg3 Rf7 20. Qh5 Kf8 21. Ra4 Re7 22. Qg4 c5 23. Qh4 d4 24. e4 b6 25. Rg6 Rc8 26. Ra1 b5 27. Rf1 c4 28. bxc4 bxc4 29. Rf3 cxd3 30. cxd3 Qc6 31. Rfg3 Rcc7 32. Qxh6 Qc1+ 33. Qxc1 Rxc1+ 34. Kh2 Rb1 35. h4 Rxb2 36. h5 Rf7 37. h6 gxh6 38. Rxh6 Ke7 39. Rg8 Rb3 40. Rhh8 Rb6 41. Rd8 Rh7+ 42. Rxh7+ Kxd8 43. Rxa7 Rb3 44. Rf7 Rxd3 45. Rxf6 Re3 46. Re6 Rxe4 47. f6 Rf4 48. Rxe5 Rxf6 49. Rd5+ Ke7 50. Rxd4 Rb6 51. Rf4 Rf6 52. Rxf6 Kxf6 53. Kh3 Kf5 54. Kh4 Kg6 55. Kg4 Kf6 56. Kh5 Kg7 57. Kg5 Kh7 58. Kf6 Kg8 59. Kg6 Kf8 60. g4 Kg8 61. g5 1-0

[Event "Goch op 26th"]
[Site "Goch"]
[Date "2015.09.04"]
[Round "2"]
[White "Marschall, Tillmann"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1444"]
[BlackElo "1845"]
[PlyCount "100"]
[EventDate "2015.09.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 c5 4. c3 cxd4 5. cxd4 d5 6. e5 Nc6 7. Nc3 Nh6 8. Bd3 0-0 9. Qf3 Nb4 10. Bb1 Bg4 11. Qg3 Be6 12. a3 Nc6 13. Nge2 Nf5 14. Bxf5 Bxf5 15. Nf4 e6 16. Rc1 Na5 17. 0-0 Nc4 18. Qf3 Nxe3 19. fxe3 a6 20. g4 Qg5 21. h3 h5 22. Qg2 hxg4 23. Rf3 Qh4 24. hxg4 Bxg4 25. Rg3 Bf5 26. Kf2 g5 27. Rh1 Qxh1 28. Qxh1 gxf4 29. exf4 Rac8 30. Qg1 Bg6 31. Qd1 Rc4 32. Ke3 Rfc8 33. Qb3 b5 34. Qd1 Bf8 35. Qg1 Rxc3+ 36. bxc3 Rxc3+ 37. Ke2 Rxa3 38. Rxa3 Bxa3 39. Qa1 b4 40. Qa2 f5 41. Qc2 Be8 42. Qc8 Kf7 43. Qb7+ Kf8 44. Qxa6 Bd7 45. Qd6+ Ke8 46. Kd2 Kd8 47. Qb8+ Ke7 48. Kc2 Ba4+ 49. Kb1 Bd7 50. Qb7 Ke8 1/2-1/2

[Event "Goch op 26th"]
[Site "Goch"]
[Date "2015.09.03"]
[Round "1"]
[White "Lessing, Sebastian"]
[Black "Westermann, Johannes"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1845"]
[BlackElo "2154"]
[PlyCount "70"]
[EventDate "2015.09.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Nf3 Bd6 5. Ng3 Ne7 6. Bc4 0-0 7. d3 Bb4+ 8. Bd2 Bxd2+ 9. Qxd2 Qd6 10. h4 Be6 11. Bxe6 Qxe6 12. h5 h6 13. Nh4 c5 14. Ngf5 Nbc6 15. g4 Qf6 16. Nf3 Qe6 17. Rg1 Kh7 18. Nxe7 Nxe7 19. g5 f5 20. gxh6 gxh6 21. exf5 Rxf5 22. Nh2 Rxh5 23. Ng4 Rg8 24. f3 Rg6 25. b3 Nd5 26. 0-0-0 Nc3 27. Rh1 Rf5 28. Rdf1 Kg7 29. Kb2 h5 30. Nf2 b5 31. Ne4 Nxe4 32. fxe4 Rxf1 33. Rxf1 c4 34. Qb4 c3+ 35. Kc1 Qf6 0-1

[Event "Mittelrhein Verbandsliga-O 1112"]
[Site "Germany"]
[Date "2012.05.06"]
[Round "10"]
[White "Lessing, Sebastian"]
[Black "Schniggenberg, Gerd"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1800"]
[BlackElo "1905"]
[PlyCount "74"]
[EventDate "2011.09.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Koeln Porz III"]
[BlackTeam "Godesberg IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nc3 d5 2. e4 e6 3. Nf3 Nf6 4. exd5 exd5 5. d4 Bg4 6. Be2 c6 7. Ne5 Bxe2 8. Nxe2 Bd6 9. Ng3 0-0 10. 0-0 Qc7 11. Ng4 Nbd7 12. Bg5 Ne4 13. Bd2 f5 14. Nxe4 dxe4 15. Ne3 Bxh2+ 16. Kh1 Rf6 17. g3 Bxg3 18. fxg3 Qxg3 19. Ng2 Rg6 20. Qe2 e3 21. Bxe3 Re8 22. Rf3 Qg4 23. Qf2 Nf6 24. Bf4 Qh5+ 25. Kg1 Ne4 26. Qe2 Rg4 27. Re1 Re6 28. Qc4 Qf7 29. Re2 Kh8 30. Rfe3 Qe8 31. d5 Reg6 32. Rf3 cxd5 33. Qxd5 Qf8 34. Bh2 R6g5 35. Rf1 h6 36. Rxe4 Rxe4 37. Qxe4 Qc5+ 0-1

[Event "Cologne Longerich op 8th"]
[Site "Cologne"]
[Date "2011.08.14"]
[Round "4"]
[White "Lessing, Sebastian"]
[Black "Gottas, Mike"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "1767"]
[BlackElo "1949"]
[PlyCount "65"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nc3 b6 2. e4 Bb7 3. Bc4 e6 4. Nf3 Bb4 5. Qe2 Ne7 6. 0-0 0-0 7. Nd1 d5 8. Bd3 Ng6 9. g3 Be7 10. Re1 d4 11. b3 c5 12. c4 Nc6 13. Bb1 Qc7 14. d3 Bd6 15. Nd2 f5 16. exf5 exf5 17. f4 Rae8 18. Qxe8 Rxe8 19. Rxe8+ Kf7 20. Re2 Bxf4 21. gxf4 Nxf4 22. Rf2 Nh3+ 23. Kf1 Nxf2 24. Nxf2 Qf4 25. Bc2 Nb4 26. Nde4 Qxh2 27. Ng5+ Kf6 28. Bd1 Bg2+ 29. Ke2 Qe5+ 30. Nge4+ fxe4 31. Ng4+ Kf5 32. Nxe5 Kxe5 33. dxe4 1/2-1/2

[Event "Cologne Longerich op 8th"]
[Site "Cologne"]
[Date "2011.08.14"]
[Round "5"]
[White "Maczkowiak, Thomas"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1834"]
[BlackElo "1767"]
[PlyCount "44"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 d5 4. 0-0 Bg4 5. d4 Nc6 6. c3 Qd7 7. Bf4 h5 8. Qd3 0-0-0 9. Nbd2 h4 10. Nxh4 Bh3 11. Ndf3 Bxg2 12. Kxg2 Bf6 13. Be5 Nxe5 14. dxe5 Bxh4 15. Nxh4 Qg4 16. Kh1 Nh6 17. f3 Qh3 18. Qe3 Nf5 19. Qg1 Nxh4 20. gxh4 Rxh4 21. Rad1 Rdh8 22. Rf2 e6 1/2-1/2

[Event "Cologne Longerich op 8th"]
[Site "Cologne"]
[Date "2011.08.13"]
[Round "3"]
[White "Kolbasnikov, Igor"]
[Black "Lessing, Sebastian"]
[Result "0-1"]
[ECO "B27"]
[BlackElo "1767"]
[PlyCount "74"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. c3 cxd4 5. cxd4 d5 6. e5 Bg4 7. Be2 Nc6 8. Be3 Qb6 9. Qd2 e6 10. a3 Bxf3 11. Bxf3 Nge7 12. Bg4 Na5 13. Qc2 Nb3 14. Ra2 Nc6 15. f4 Ncxd4 16. Qd3 Qb5 17. Qxb5+ Nxb5 18. Nd2 Nxd2 19. Bxd2 0-0 20. 0-0 Rfc8 21. Bb4 a5 22. Be1 Bf8 23. a4 Nd4 24. Bc3 Bc5 25. Kh1 h5 26. Bd1 Nf5 27. Be2 Bd4 28. Bxd4 Nxd4 29. Bd3 Rc5 30. Rd1 Rac8 31. Raa1 Nb3 32. Rab1 R5c7 33. g3 Nc5 34. Bb5 Ne4 35. Kg2 Rc2+ 36. Kg1 Nd2 37. Bd3 Nf3+ 0-1

[Event "Cologne Longerich op 8th"]
[Site "Cologne"]
[Date "2011.08.13"]
[Round "2"]
[White "Lessing, Sebastian"]
[Black "Dickmann, Thomas"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "1767"]
[BlackElo "1906"]
[PlyCount "78"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. Bc4 Nc6 4. 0-0 Bg7 5. c3 e6 6. d3 Nge7 7. Be3 b6 8. Qc1 0-0 9. Bh6 d5 10. Bxg7 Kxg7 11. exd5 Nxd5 12. Bb5 Bb7 13. Bxc6 Bxc6 14. Ne5 Bb7 15. Re1 Qc7 16. c4 Ne7 17. Qc3 f6 18. Ng4 Nf5 19. Nd2 Nd4 20. Nb3 h5 21. Ne3 e5 22. f3 Rad8 23. Nc2 Bxf3 24. Nbxd4 exd4 25. Qd2 Bb7 26. b4 Rde8 27. bxc5 bxc5 28. Rab1 Qc6 29. Rf1 Re5 30. Rf2 Rfe8 31. Ne1 R8e7 32. Nf3 Re3 33. Nh4 Qe6 34. Kf1 Qg4 35. g3 Qh3+ 36. Kg1 Rxg3+ 37. Ng2 Rxg2+ 38. Rxg2 Bxg2 39. Qxg2 Qe3+ 0-1

[Event "Cologne Longerich op 8th"]
[Site "Cologne"]
[Date "2011.08.12"]
[Round "1"]
[White "Lessing, Sebastian"]
[Black "Grasse, Herbert"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1767"]
[BlackElo "1632"]
[PlyCount "69"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. Nc3 c5 2. e4 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Bc5 6. Nb3 Bb6 7. Bb5 Nge7 8. Bg5 f6 9. Bh4 0-0 10. Qe2 a6 11. Bd3 Qe8 12. 0-0-0 f5 13. f3 Ng6 14. Bg3 f4 15. Bf2 Bxf2 16. Qxf2 Nge5 17. Be2 b5 18. g4 fxg3 19. hxg3 Qg6 20. Nd2 Bb7 21. f4 Ng4 22. Bxg4 Qxg4 23. Rh4 Qg6 24. Nf3 Rfd8 25. Rd6 Qf7 26. Ng5 Qf8 27. Qd2 h6 28. Nh3 Qe7 29. e5 Na5 30. b3 b4 31. Na4 Nc6 32. Nb6 Rab8 33. Nxd7 Rdc8 34. Nxb8 Rxb8 35. Qd3 1-0

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.31"]
[Round "9"]
[White "Lessing, Sebastian"]
[Black "Bausch, Thomas"]
[Result "1-0"]
[ECO "B88"]
[WhiteElo "1856"]
[BlackElo "1953"]
[PlyCount "75"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. 0-0 Be7 8. Re1 Nd7 9. Bxe6 Nxd4 10. Bxd7+ Qxd7 11. Qxd4 Bf6 12. Qc4 Bxc3 13. Qxc3 0-0 14. Bf4 d5 15. Rad1 Qg4 16. Bd6 Rd8 17. Bc7 d4 18. Rxd4 Rxd4 19. Qxd4 h5 20. f3 Qg6 21. Rd1 Bh3 22. Qf2 Rc8 23. Bg3 Be6 24. a3 Qg5 25. c3 Qb5 26. Rd4 Bc4 27. Qd2 Kh7 28. Bf2 Rc6 29. Rd8 Rg6 30. h4 Bf1 31. g3 Bh3 32. Rd3 Qe5 33. Kh2 Be6 34. Re3 Qb5 35. f4 Qf1 36. f5 Bxf5 37. exf5 Rd6 38. Qe2 1-0

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.30"]
[Round "8"]
[White "Ertelt, Pornchai"]
[Black "Lessing, Sebastian"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "1705"]
[BlackElo "1856"]
[PlyCount "72"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. Bf4 c5 4. c3 cxd4 5. cxd4 Nc6 6. e3 Qb6 7. Qd2 Nf6 8. Nc3 0-0 9. Be2 d6 10. 0-0 Nh5 11. Bg5 f6 12. Bh4 Bh6 13. d5 Nb8 14. Nd4 Ng7 15. f4 Nf5 16. Nxf5 Bxf5 17. Bf2 Bd7 18. h4 Na6 19. g4 Qa5 20. g5 Bg7 21. h5 Rac8 22. e4 fxg5 23. Bd4 Bxd4+ 24. Qxd4 gxf4 25. hxg6 hxg6 26. Kg2 Qb4 27. Qd2 g5 28. Rh1 Nc5 29. a3 Nxe4 30. Qc2 Rxc3 31. Qxc3 Nxc3 32. axb4 Nxe2 33. Rxa7 Bc8 34. Rh5 g4 35. Rg5+ Kh7 36. Ra1 Kh6 0-1

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.29"]
[Round "7"]
[White "Lessing, Sebastian"]
[Black "Lange, Hans Werner"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1856"]
[BlackElo "1611"]
[PlyCount "133"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nc3 g6 2. h4 h5 3. d4 d5 4. Bg5 Bg7 5. e3 Nf6 6. Nf3 Bg4 7. Qd3 c6 8. 0-0-0 Nbd7 9. Re1 Bf5 10. Qd1 Qa5 11. Bd3 Ne4 12. Bxe4 Bxe4 13. Kb1 e6 14. Nxe4 dxe4 15. Nd2 0-0 16. Nxe4 c5 17. Be7 Rfe8 18. Bxc5 Nxc5 19. Nxc5 e5 20. Nb3 Qb5 21. c3 a5 22. Qe2 Qb6 23. Qf3 a4 24. Nc5 e4 25. Qf4 Qb5 26. a3 b6 27. Nb7 Re6 28. Nd6 Qd3+ 29. Kc1 Rf6 30. Qxe4 Qa6 31. Nc4 Re8 32. Nd2 Bf8 33. Qc2 b5 34. Ne4 Rc6 35. Nc5 Bxc5 36. dxc5 Rxc5 37. Rd1 b4 38. Rd3 bxa3 39. bxa3 Qa5 40. Kd2 Rb5 41. Rb1 Reb8 42. Rxb5 Rxb5 43. Rd4 Rb3 44. Qc1 Qb5 45. Rb4 Qd5+ 46. Ke2 Qxg2 47. Rxa4 Qc6 48. Rd4 Qa6+ 49. Kf3 Rxa3 50. c4 Qf6+ 51. Rf4 Qc6+ 52. Kg3 Qa8 53. Qd2 Ra7 54. Qd5 Qb8 55. c5 Qb1 56. Kg2 Qb5 57. Rf6 Rd7 58. Rxg6+ Kf8 59. Qa8+ Ke7 60. Qe4+ Kf8 61. Rg5 Qe2 62. Qf3 Qe1 63. Qxh5 Rd1 64. Qh8+ Ke7 65. Re5+ Kd7 66. Qe8+ Kc7 67. Re7+ 1-0

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.28"]
[Round "6"]
[White "Seref, Okan"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "1524"]
[BlackElo "1856"]
[PlyCount "65"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Bc4 Nf6 5. Nf3 0-0 6. Qe2 Nc6 7. h3 Nd7 8. Be3 e5 9. Rd1 exd4 10. Nxd4 Nce5 11. Bb3 Nc5 12. 0-0 Nxb3 13. axb3 Nc6 14. f4 Nxd4 15. Bxd4 f6 16. Qc4+ Kh8 17. e5 fxe5 18. fxe5 Rxf1+ 19. Qxf1 d5 20. Qf7 c6 21. Rf1 b6 22. b4 Bf5 23. Rf2 Qh4 24. Ne2 Bxc2 25. Qb7 Rd8 26. Rf7 c5 27. bxc5 bxc5 28. Bxc5 Qe1+ 29. Kh2 Bxe5+ 30. Nf4 Bxf4+ 31. Rxf4 d4 32. Bxd4+ Rxd4 33. Rf8# 1-0

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.27"]
[Round "5"]
[White "Lessing, Sebastian"]
[Black "Porstmann, Jan"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "1856"]
[BlackElo "1591"]
[PlyCount "73"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Ng3 Be6 5. Nf3 f6 6. Bb5+ c6 7. Ba4 Nd7 8. Bb3 Nc5 9. Bxe6 Nxe6 10. d3 Ne7 11. 0-0 Ng6 12. Nf5 Ngf4 13. g3 Nh3+ 14. Kg2 Nhg5 15. N5h4 Nf7 16. Ne1 g5 17. Nf5 Qc7 18. c3 Nd6 19. Qh5+ Qf7 20. Qxf7+ Kxf7 21. Nxd6+ Bxd6 22. cxd4 Nxd4 23. Be3 c5 24. Rc1 Rac8 25. Bxd4 cxd4 26. Nf3 Ke7 27. h4 g4 28. Nd2 Rc7 29. Rxc7+ Bxc7 30. Rc1 Kd7 31. Nb3 Bb6 32. f4 Rc8 33. Rxc8 Kxc8 34. Nd2 Bc7 35. f5 h5 36. Kf2 Kd7 37. Ke2 1/2-1/2

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.26"]
[Round "4"]
[White "Seref, Serkan"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1578"]
[BlackElo "1856"]
[PlyCount "59"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 g6 2. Bc4 d6 3. d4 Nf6 4. Nc3 Nc6 5. f3 Na5 6. Bd3 Bg7 7. Be3 Nc6 8. Nge2 e5 9. Bb5 Bd7 10. d5 Ne7 11. Bxd7+ Nxd7 12. Qd2 h5 13. Bg5 f6 14. Be3 Nb6 15. Qd3 Qd7 16. a4 a6 17. a5 Nbc8 18. Na4 g5 19. h4 gxh4 20. Rxh4 Ng6 21. Rh2 h4 22. Rh3 Bh6 23. Bxh6 Rxh6 24. Qe3 Rh8 25. Nac3 Na7 26. Qd3 0-0-0 27. Kd2 Rdg8 28. Nd1 Ne7 29. Ne3 Rxg2 30. Rah1 1/2-1/2

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.25"]
[Round "3"]
[White "Lessing, Sebastian"]
[Black "Benning, Martin"]
[Result "1-0"]
[ECO "B44"]
[WhiteElo "1856"]
[BlackElo "1531"]
[PlyCount "54"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nc3 c5 2. e4 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. Bd3 Ne7 8. 0-0 0-0 9. Qh5 f5 10. exf5 Nxf5 11. Ne4 Be7 12. Ng5 Bxg5 13. Bxg5 Qe8 14. Qh3 h6 15. Bd2 d5 16. g4 Nd4 17. f4 Bd7 18. c3 Nb5 19. Rae1 Nd6 20. Re2 Qe7 21. Rfe1 Qf7 22. b3 Rae8 23. Re5 Nb5 24. g5 Nxc3 25. gxh6 Ne4 26. Bxe4 dxe4 27. hxg7 Qg6+ 1-0

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.24"]
[Round "2"]
[White "Gegner, Michael"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "1593"]
[BlackElo "1856"]
[PlyCount "64"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. d5 d6 5. Nf3 Nf6 6. Be3 Ng4 7. Bg5 h6 8. Bh4 Qa5 9. Qd2 Qb4 10. Rb1 Bxc3 11. Qxc3 Qxe4+ 12. Be2 Ne5 13. Nxe5 Qxe5 14. Qd2 f5 15. f4 Qg7 16. Qe3 Rf8 17. Bb5+ Kd8 18. 0-0 a6 19. Bd3 Nd7 20. Rfe1 Nf6 21. c4 Rf7 22. b4 Ng4 23. Qd2 b6 24. bxc5 bxc5 25. Bc2 Qd4+ 26. Qxd4 cxd4 27. Ba4 Ne3 28. Rb6 Nxc4 29. Rc6 Nb2 30. Rxd6+ Kc7 31. Rc6+ Kd8 32. Rd6+ Kc7 1/2-1/2

[Event "Dortmund Sparkassen op-B"]
[Site "Dortmund"]
[Date "2011.07.23"]
[Round "1"]
[White "Lessing, Sebastian"]
[Black "Schrimpl, Michael"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1856"]
[BlackElo "1462"]
[PlyCount "75"]
[EventDate "2011.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nc3 Nf6 2. Nf3 d6 3. e4 c5 4. Bc4 Nc6 5. d4 Bg4 6. d5 Nd4 7. Be2 Nxe2 8. Qxe2 a6 9. h3 Bxf3 10. Qxf3 g6 11. 0-0 b5 12. Bg5 Bg7 13. Rad1 0-0 14. Qe3 Nd7 15. Bh6 Ne5 16. Bxg7 Kxg7 17. b3 Qc7 18. f4 Nd7 19. Rfe1 Kg8 20. e5 dxe5 21. fxe5 c4 22. d6 exd6 23. exd6 Qc5 24. Qxc5 Nxc5 25. Nd5 cxb3 26. cxb3 Ne6 27. Nb4 Rfd8 28. Nc6 Rd7 29. Kf2 Kf8 30. b4 Nd8 31. Re7 Nxc6 32. Rxd7 Nxb4 33. a3 Nc6 34. Rc7 Nd8 35. Rdc1 Ke8 36. d7+ Ke7 37. Re1+ Kd6 38. Rc8 1-0

[Event "Leverkusen Bayer op 9th"]
[Site "Leverkusen"]
[Date "2011.04.11"]
[Round "7"]
[White "Witte, Thomas"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1823"]
[BlackElo "1604"]
[PlyCount "67"]
[EventDate "2011.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. f4 g6 3. Nf3 Bg7 4. Nc3 Nf6 5. Bc4 Nc6 6. d3 Bg4 7. Be3 e5 8. h3 Bxf3 9. Qxf3 exf4 10. Qxf4 0-0 11. 0-0 Nh5 12. Qf2 Ne5 13. Bb3 Kh8 14. g4 Nf6 15. Bg5 Nfxg4 16. Bxd8 Nxf2 17. Bxc7 Nxh3+ 18. Kg2 Ng5 19. Bxd6 Rfe8 20. Bxe5 Bxe5 21. Bxf7 Rec8 22. Bc4 a6 23. a4 Rc5 24. Rf2 Bxc3 25. bxc3 Nxe4 26. Rf7 Nd6 27. Rd7 Nxc4 28. dxc4 Rxc4 29. Re1 Rxa4 30. Ree7 Rh4 31. Rxb7 Rg4+ 32. Kh3 h5 33. Rh7+ Kg8 34. Rbg7+ 1/2-1/2

[Event "Leverkusen Bayer op 9th"]
[Site "Leverkusen"]
[Date "2011.03.28"]
[Round "6"]
[White "Lessing, Sebastian"]
[Black "Birnkott, Manfred"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1604"]
[BlackElo "1792"]
[PlyCount "102"]
[EventDate "2011.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. f4 Nf6 3. Nf3 Bf5 4. e3 e6 5. Nbd2 Nbd7 6. c3 c6 7. Be2 a5 8. Ne5 Nxe5 9. fxe5 Ne4 10. Nf3 Be7 11. 0-0 0-0 12. Bd2 b5 13. a3 Qb6 14. Be1 Qd8 15. Nd2 Bg5 16. Nxe4 Bxe4 17. Bd2 f6 18. exf6 Rxf6 19. Bg4 Qe7 20. Rxf6 Qxf6 21. Qf1 Qh6 22. Qe2 Rf8 23. h3 Rf6 24. Rf1 Bf5 25. Bxf5 exf5 26. Rf3 g6 27. Kh2 Re6 28. Qf2 Re4 29. g3 Qf8 30. Kg2 Qe7 31. h4 Bh6 32. Bc1 Rg4 33. Kf1 Qe4 34. Kg2 Qe7 35. Kf1 Re4 36. b4 Qc7 37. Kg2 Qa7 38. Qb2 axb4 39. cxb4 Qa4 40. Qc3 Re6 41. Rf1 Qa8 42. Kf3 Qe8 43. Re1 g5 44. hxg5 Qh5+ 45. Kg2 Bxg5 46. Qc2 Rh6 47. Qe2 Qh3+ 48. Kf3 Qg4+ 49. Kg2 Qe4+ 50. Qf3 Rh2+ 51. Kxh2 Qxf3 0-1

[Event "Leverkusen Bayer op 9th"]
[Site "Leverkusen"]
[Date "2011.03.14"]
[Round "5"]
[White "Kies, Werner"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2087"]
[BlackElo "1604"]
[PlyCount "98"]
[EventDate "2011.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 g6 4. c3 Bg7 5. f4 0-0 6. Nf3 Bg4 7. 0-0 Nbd7 8. Qe1 Bxf3 9. Rxf3 e5 10. f5 exd4 11. cxd4 Qe8 12. Nc3 a6 13. Bf4 Nh5 14. Be3 c5 15. Qf2 cxd4 16. Bxd4 Ne5 17. Bxe5 Qxe5 18. Nd5 Qxb2 19. Rb1 Qxf2+ 20. Kxf2 Bd4+ 21. Ke2 b5 22. f6 g5 23. g3 Rae8 24. Rbf1 Re5 25. Ne7+ Kh8 26. Nc6 Bb2 27. Nxe5 Bxe5 28. Kd2 Rg8 29. Rf5 Rg6 30. Rc1 Nxf6 31. Rc8+ Kg7 32. Ra8 Ng4 33. h3 Nf6 34. Rf3 g4 35. hxg4 Rxg4 36. Rxa6 Bxg3 37. Bxb5 Be5 38. Kd3 Rg1 39. a4 Ng4 40. Ra7 Bf6 41. Ke2 Ne5 42. Rf1 Rg4 43. Ke3 Rg3+ 44. Kd2 Rg4 45. Bd3 Rg2+ 46. Be2 Nc4+ 47. Kd3 Ne5+ 48. Kd2 Nc4+ 49. Kd3 Ne5+ 1/2-1/2

[Event "Leverkusen Bayer op 9th"]
[Site "Leverkusen"]
[Date "2011.02.21"]
[Round "4"]
[White "Lessing, Sebastian"]
[Black "Heister, Werner"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1604"]
[BlackElo "1879"]
[PlyCount "97"]
[EventDate "2011.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 d5 3. Bd3 Nbd7 4. f4 Ne4 5. Nd2 Ndf6 6. Ngf3 e6 7. Ne5 Be7 8. 0-0 0-0 9. Qf3 Nxd2 10. Bxd2 c5 11. c3 c4 12. Bc2 Ne8 13. b3 Nd6 14. Be1 f6 15. Qh5 f5 16. g4 Bd7 17. g5 Be8 18. Qh4 h6 19. Nf3 Ne4 20. bxc4 hxg5 21. fxg5 Nxg5 22. Qg3 Nxf3+ 23. Qxf3 Bc6 24. c5 b6 25. cxb6 axb6 26. Bg3 Bb5 27. Rfb1 Bc4 28. a4 Bd6 29. Kh1 Qc7 30. Rg1 Ra7 31. Bh4 Bxh2 32. Rg2 Be5 33. dxe5 Qxe5 34. Qg3 Qxc3 35. Rag1 d4 36. Qe5 Bd5 37. e4 Qh3+ 38. Rh2 Qf3+ 39. Rgg2 fxe4 40. Qxd4 Rc7 41. Bf2 Rff7 42. Qd2 e3 43. Bh7+ Kf8 44. Bxe3 Qf1+ 45. Bg1 Rf2 46. Qxf2+ Qxf2 47. Bxf2 Rc1+ 48. Bg1 Ra1 49. Rh4 1-0

[Event "Leverkusen Bayer op 9th"]
[Site "Leverkusen"]
[Date "2011.02.07"]
[Round "3"]
[White "Biessner, Eberhard"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1836"]
[BlackElo "1604"]
[PlyCount "62"]
[EventDate "2011.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 g6 4. Ne2 Nbd7 5. c3 Bg7 6. 0-0 0-0 7. Ng3 c5 8. d5 Rb8 9. Qe2 Ne5 10. Bc2 b5 11. b3 Qb6 12. Bb2 c4 13. Kh1 e6 14. dxe6 fxe6 15. f4 Nf7 16. Nd2 d5 17. e5 Nd7 18. Nf3 Nh6 19. Nd4 Nf5 20. Ngxf5 exf5 21. h4 Nc5 22. Ba3 Re8 23. bxc4 dxc4 24. Rab1 a6 25. Kh2 Ne6 26. Nxe6 Bxe6 27. Bd6 Rbd8 28. Rfd1 Bf7 29. Qd2 Bf8 30. a4 Bxd6 31. exd6 Qc6 1/2-1/2

[Event "Leverkusen Bayer op 9th"]
[Site "Leverkusen"]
[Date "2011.01.24"]
[Round "2"]
[White "Lessing, Sebastian"]
[Black "Bender, Jakob"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1604"]
[BlackElo "1364"]
[PlyCount "79"]
[EventDate "2011.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. f3 g6 4. Be3 Bg7 5. Qd2 Nbd7 6. Bh6 0-0 7. Nc3 c6 8. h4 e5 9. Bxg7 Kxg7 10. 0-0-0 b5 11. g4 Qa5 12. h5 Ng8 13. hxg6 fxg6 14. Qh2 h6 15. dxe5 b4 16. Nb1 Nxe5 17. Rxd6 Qc5 18. Rd2 Nxf3 19. Nxf3 Rxf3 20. Qg1 Qe5 21. Qd4 Qxd4 22. Rxd4 Bxg4 23. Nd2 Re3 24. Bg2 c5 25. Rc4 Re2 26. Bf3 Bxf3 27. Nxf3 Rf8 28. Ne5 Re8 29. Rxc5 Rxe4 30. Nd3 Ne7 31. Rc7 a5 32. Ra7 Rc8 33. Rxa5 Re2 34. Nxb4 Rc4 35. c3 Nf5 36. Rg1 Ne3 37. Re5 Rf4 38. Nd5 Rc2+ 39. Kb1 Rxb2+ 40. Kxb2 1-0

[Event "Leverkusen Bayer op 9th"]
[Site "Leverkusen"]
[Date "2011.01.10"]
[Round "1"]
[White "Pick, Stefan"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2104"]
[BlackElo "1604"]
[PlyCount "91"]
[EventDate "2011.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c3 Bd6 4. e3 Nd7 5. Nbd2 f5 6. Bd3 c6 7. h3 Ngf6 8. Qe2 0-0 9. g4 Ne4 10. gxf5 exf5 11. Rg1 Ndf6 12. Nf1 Qc7 13. Bd2 Nxd2 14. N1xd2 f4 15. 0-0-0 fxe3 16. fxe3 Bxh3 17. Ng5 Qd7 18. Nxh3 Qxh3 19. Rh1 Qg4 20. Bxh7+ Kf7 21. Qd3 Nxh7 22. Rxh7 Rh8 23. Rf1+ Ke7 24. Rfh1 Rxh7 25. Qxh7 Rf8 26. Rh4 Qg3 27. Rh3 Qg5 28. Kc2 Qf5+ 29. e4 Qxh7 30. Rxh7 Rf7 31. e5 Bc7 32. Kd3 Ke6 33. Ke3 Bd8 34. Nf3 b6 35. Rh8 Be7 36. Rc8 c5 37. Rc6+ Kf5 38. c4 cxd4+ 39. Nxd4+ Kg4 40. cxd5 Bc5 41. Rg6+ Kh5 42. Rg2 g5 43. Kd3 Rd7 44. Kc4 Kg6 45. Ne6 Be7 46. d6 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2010.04.26"]
[Round "7"]
[White "Speck, Stefan"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "2031"]
[BlackElo "1567"]
[PlyCount "69"]
[EventDate "2010.01.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. c3 Qb6 6. Qb3 Qxb3 7. axb3 Ne4 8. Bf4 Nc6 9. Bd3 cxd4 10. exd4 Bd6 11. Bxd6 Nxd6 12. Ne5 0-0 13. Nxc6 bxc6 14. Nd2 f6 15. 0-0 e5 16. dxe5 fxe5 17. f3 Re8 18. b4 e4 19. fxe4 dxe4 20. Bc4+ Kh8 21. Bf7 Nxf7 22. Rxf7 e3 23. Nf3 Be6 24. Rfxa7 Rxa7 25. Rxa7 Bg4 26. Kf1 h6 27. Ke2 Kh7 28. Rc7 Re6 29. h3 Bxf3+ 30. gxf3 Kg6 31. Rd7 Kf5 32. Rxg7 Kf4 33. Rg4+ Kf5 34. c4 h5 35. Rd4 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2010.04.12"]
[Round "6"]
[White "Lessing, Sebastian"]
[Black "Wilschrey, Andreas"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1567"]
[BlackElo "1419"]
[PlyCount "114"]
[EventDate "2010.01.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 c5 3. c3 b6 4. Bd3 Bb7 5. Nf3 d5 6. e5 Nc6 7. 0-0 Be7 8. Qc2 h5 9. Be3 Nh6 10. Qd2 cxd4 11. cxd4 a6 12. h3 Rc8 13. a3 Na5 14. Qe2 Nb3 15. Ra2 b5 16. Nbd2 Na5 17. a4 Nc4 18. axb5 axb5 19. b3 Nxe3 20. Bxb5+ Kf8 21. fxe3 g5 22. Nh2 g4 23. hxg4 hxg4 24. Nxg4 Nf5 25. Qf3 Rc3 26. Raa1 Qb6 27. Ba4 Bg5 28. Rae1 Ba6 29. Nb1 Rd3 30. b4 Rxd4 31. exd4 Qxd4+ 32. Rf2 Qxb4 33. Qa3 Qxa3 34. Nxa3 Rh4 35. Bd1 Ng3 36. Nh2 Ne4 37. Rf3 Bf4 38. Rh3 Bd2 39. Rxh4 Bxe1 40. Rf4 Bd2 41. Rf3 d4 42. Ng4 Nc3 43. Nf2 Be3 44. Bb3 Bb7 45. Kf1 Bxf3 46. gxf3 Bf4 47. Nd3 Be3 48. Nc2 Ke7 49. Nxe3 dxe3 50. Ne1 f6 51. exf6+ Kxf6 52. Nc2 e5 53. Nxe3 e4 54. f4 Nb5 55. Ke1 Nd4 56. Bd5 Nf5 57. Ng4+ Kg6 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2010.03.08"]
[Round "4"]
[White "Pejkovic, Patrick Slavko"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "C28"]
[WhiteElo "1986"]
[BlackElo "1567"]
[PlyCount "79"]
[EventDate "2010.01.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 d6 4. d3 Nc6 5. f4 Be6 6. Bxe6 fxe6 7. Nf3 exf4 8. Bxf4 e5 9. Bg5 Be7 10. 0-0 0-0 11. Nh4 h6 12. Bxf6 Bxf6 13. Nf5 Ne7 14. Qg4 Nxf5 15. Rxf5 Kh7 16. Raf1 Qd7 17. Qg3 c6 18. R1f3 Qd8 19. Qf2 Qb6 20. Qxb6 axb6 21. a3 Be7 22. Rxf8 Rxf8 23. Rxf8 Bxf8 24. a4 Kg8 25. Kf2 Kf7 26. Nd1 Ke6 27. c4 d5 28. exd5+ cxd5 29. Nc3 dxc4 30. dxc4 g5 31. g4 Bc5+ 32. Ke2 Bd4 33. Kd3 Bc5 34. Nd5 Bf2 35. Nc3 Bc5 36. b3 Bf2 37. Ne4 Bd4 38. b4 Bg1 39. h3 Bd4 40. Ng3 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2010.02.22"]
[Round "3"]
[White "Lessing, Sebastian"]
[Black "Domnick, Michael"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1567"]
[BlackElo "1681"]
[PlyCount "53"]
[EventDate "2010.01.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d3 Nf6 5. Bd2 c6 6. Nf3 Bg4 7. Be2 Qc7 8. Nd4 Bxe2 9. Qxe2 e6 10. g3 Na6 11. Bf4 Bd6 12. Bxd6 Qxd6 13. Nb3 0-0-0 14. Qe3 Kb8 15. 0-0-0 h6 16. Nd2 Nd5 17. Nxd5 cxd5 18. Nb3 Rc8 19. Rd2 Rc6 20. a3 Rhc8 21. Re1 Rb6 22. Nd4 Nc5 23. b4 Na4 24. Qe5 Qxe5 25. Rxe5 Nc3 26. Kb2 a5 27. Kb3 1/2-1/2

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2010.02.01"]
[Round "2"]
[White "Boehm, Stefan"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2087"]
[BlackElo "1567"]
[PlyCount "51"]
[EventDate "2010.01.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. e4 dxe4 5. Nxe4 Nf6 6. Nxf6+ Qxf6 7. Nf3 h6 8. Bd3 Bd6 9. 0-0 0-0 10. Qe2 Re8 11. Re1 Bd7 12. Qe4 Na6 13. c5 Bc7 14. Bd2 Qf5 15. Qe2 Qh5 16. Bxa6 bxa6 17. Qxa6 Reb8 18. Bc3 f6 19. Qe2 Re8 20. Qd3 g5 21. g3 g4 22. Nh4 f5 23. d5 f4 24. dxe6 fxg3 25. hxg3 Qxc5 26. Qg6+ 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2010.01.18"]
[Round "1"]
[White "Lessing, Sebastian"]
[Black "Kies, Werner"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1567"]
[BlackElo "2089"]
[PlyCount "36"]
[EventDate "2010.01.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Qxd4 Nc6 5. Qa4 Nf6 6. Be2 Bc5 7. 0-0 0-0 8. Bg5 h6 9. Bh4 d6 10. c3 Bd7 11. Qc2 e5 12. Nbd2 a5 13. Nc4 Ne7 14. Bxf6 gxf6 15. Qd2 Kh7 16. Ne3 Rg8 17. g3 Rg7 18. Nh4 Qg8 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2008.03.16"]
[Round "6"]
[White "Schueppen, Heinrich"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "1696"]
[BlackElo "1614"]
[PlyCount "58"]
[EventDate "2008.01.14"]
[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 d5 2. Nf3 Nf6 3. Bg5 Bg4 4. Nbd2 e6 5. e3 c5 6. c3 Nbd7 7. Bb5 Be7 8. dxc5 0-0 9. Bxd7 Nxd7 10. Bxe7 Qxe7 11. b4 Qf6 12. Qc1 Rac8 13. Qa3 a5 14. Rc1 axb4 15. cxb4 Ra8 16. Qb3 Ra7 17. 0-0 e5 18. Qxd5 Be6 19. Qe4 Rxa2 20. c6 bxc6 21. Rxc6 Qf5 22. Qxf5 Bxf5 23. e4 Bg4 24. h3 Bxf3 25. Nxf3 Rb2 26. Rd6 Nf6 27. Nxe5 Nxe4 28. Rd4 Nc3 29. Rc4 Nd5 1/2-1/2

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2008.03.10"]
[Round "5"]
[White "Lessing, Sebastian"]
[Black "Guelden, Ralf"]
[Result "1/2-1/2"]
[ECO "B72"]
[WhiteElo "1614"]
[BlackElo "1699"]
[PlyCount "48"]
[EventDate "2008.01.14"]
[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. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bd3 0-0 8. 0-0 a6 9. h3 Nbd7 10. f4 e5 11. Nde2 exf4 12. Nxf4 Ne5 13. Bd4 Bd7 14. Rb1 Bc6 15. Ncd5 Bxd5 16. Nxd5 Nxd5 17. exd5 Qa5 18. b3 Qxd5 19. Bxe5 Qxe5 20. Qf3 Qc5+ 21. Kh1 d5 22. c4 Rad8 23. cxd5 Qxd5 24. Be4 Qd2 1/2-1/2

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2008.02.25"]
[Round "4"]
[White "Lessing, Sebastian"]
[Black "Van Hove, Ode"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1614"]
[BlackElo "1387"]
[PlyCount "111"]
[EventDate "2008.01.14"]
[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. Nc3 Nf6 3. Nf3 d6 4. d3 h6 5. Be2 Be7 6. 0-0 Be6 7. d4 exd4 8. Nxd4 Bd7 9. f4 0-0 10. Rf3 Nh7 11. f5 Nc6 12. Rg3 Kh8 13. Nd5 Bh4 14. Nxc6 bxc6 15. Ne3 Bxg3 16. hxg3 Qe7 17. Bf3 Ng5 18. Qd4 Rfe8 19. Ng4 Nxf3+ 20. gxf3 c5 21. Qc3 h5 22. Ne3 Qe5 23. Qxe5 Rxe5 24. Nc4 Ree8 25. Bf4 f6 26. Kf2 Re7 27. Rh1 Be8 28. g4 Bf7 29. Nd2 Be8 30. gxh5 Bc6 31. c4 Kg8 32. h6 Rb8 33. b3 a5 34. Rg1 a4 35. Rg6 Rf7 36. hxg7 axb3 37. axb3 Ra8 38. Bg3 Ra2 39. Ke3 Ra1 40. Bh4 Rh1 41. Bxf6 Be8 42. Bb2 Re7 43. Rg5 c6 44. f6 Ra7 45. e5 dxe5 46. Bxe5 Rd7 47. Bc3 Re1+ 48. Kf2 Rc1 49. Ne4 Rdd1 50. Rg2 Rh1 51. Be5 Rc2+ 52. Kg3 Rxg2+ 53. Kxg2 Rc1 54. Nxc5 Rc2+ 55. Kg3 Re2 56. f4 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2008.02.11"]
[Round "3"]
[White "Liebsch, Felix"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "C48"]
[WhiteElo "1147"]
[BlackElo "1614"]
[PlyCount "39"]
[EventDate "2008.01.14"]
[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. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 Nf6 5. d3 h6 6. 0-0 d6 7. h3 Bd7 8. Be3 Bb4 9. a3 Ba5 10. b4 Bb6 11. d4 g5 12. Qd2 g4 13. hxg4 Nxg4 14. Be2 Qf6 15. dxe5 Ncxe5 16. Nd5 Qd8 17. Nxe5 Nxe5 18. Bxh6 Qh4 19. Qg5 Ng6 20. Nf6+ 1/2-1/2

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2008.01.28"]
[Round "2"]
[White "Lessing, Sebastian"]
[Black "Kraemer, Detlef"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1614"]
[BlackElo "1882"]
[PlyCount "72"]
[EventDate "2008.01.14"]
[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 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. c3 c6 6. Ne2 Qc7 7. Be3 Ne7 8. Nd2 Bf5 9. Nf3 Nd7 10. Ng3 Bg6 11. Qc2 0-0-0 12. Nf5 Nxf5 13. Bxf5 Kb8 14. 0-0-0 Rde8 15. Bxg6 hxg6 16. h3 Nf6 17. Rhe1 Re7 18. Kb1 Rhe8 19. Re2 Ne4 20. Rde1 Qd7 21. Ng5 Nxg5 22. Bxg5 Rxe2 23. Rxe2 Rxe2 24. Qxe2 Qf5+ 25. Ka1 Qxg5 26. Qf1 Qd2 27. g3 a5 28. f4 a4 29. a3 Bxa3 30. bxa3 Qxc3+ 31. Kb1 Qxa3 32. Qe1 Qb3+ 33. Kc1 a3 34. Qa5 Qc4+ 35. Kb1 Qb5+ 36. Qxb5 cxb5 0-1

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2008.01.14"]
[Round "1"]
[White "Becker, Rainer"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "C44"]
[WhiteElo "1979"]
[BlackElo "1614"]
[PlyCount "61"]
[EventDate "2008.01.14"]
[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. d4 exd4 3. c3 dxc3 4. Bc4 Nc6 5. Nf3 h6 6. 0-0 d6 7. Nxc3 Bg4 8. Qb3 Qd7 9. Bxf7+ Qxf7 10. Qxb7 Rd8 11. Qxc6+ Qd7 12. Nd4 Be7 13. Nd5 Rc8 14. Be3 Bf6 15. Rac1 Kd8 16. f3 Be6 17. Nxe6+ Qxe6 18. Nxc7 Qd7 19. Qxd7+ Kxd7 20. Nb5 Ne7 21. Rfd1 Rxc1 22. Bxc1 Kc6 23. Nxa7+ Kb7 24. Nb5 Kc6 25. a4 Rd8 26. b3 g5 27. Be3 Nc8 28. Rc1+ Kd7 29. a5 Ne7 30. Rc7+ Ke8 31. a6 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2007.03.12"]
[Round "6"]
[White "Stolzenberg, Peter"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1492"]
[BlackElo "1628"]
[PlyCount "69"]
[EventDate "2007.01.08"]
[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 d5 2. Bf4 Bf5 3. Nf3 e6 4. e3 Nf6 5. c3 Bd6 6. Bg5 0-0 7. Nbd2 h6 8. Bh4 Nbd7 9. Be2 Qe8 10. 0-0 Be4 11. Nxe4 Nxe4 12. Nd2 Ndf6 13. Nxe4 Nxe4 14. f3 Ng5 15. Bxg5 hxg5 16. e4 f6 17. Qb3 Qh5 18. g3 Kf7 19. exd5 Rh8 20. dxe6+ Ke7 21. Kf2 Qxh2+ 22. Ke1 Qxg3+ 23. Kd1 Qf4 24. Qb5 Rhd8 25. d5 a6 26. Qd3 c6 27. Qg6 Bb4 28. Qxg7+ Kd6 29. cxb4 Qd4+ 30. Kc2 cxd5 31. Rad1 Rdc8+ 32. Kb1 Qxb4 33. Qd7+ Ke5 34. Qxd5+ Kf4 35. Rd4+ 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2007.02.12"]
[Round "4"]
[White "Lessing, Sebastian"]
[Black "Seelig, Jochen"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "1628"]
[BlackElo "1395"]
[PlyCount "96"]
[EventDate "2007.01.08"]
[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 b6 2. Nc3 Bb7 3. Bc4 Nf6 4. d3 e6 5. Bg5 Be7 6. Nge2 d5 7. exd5 Nxd5 8. Bxd5 Bxd5 9. Bxe7 Kxe7 10. 0-0 Qd6 11. Re1 Nd7 12. Nf4 Nf6 13. Nfxd5+ Nxd5 14. Ne4 Qd7 15. c4 Nf6 16. Ng3 g6 17. Qf3 Rhd8 18. Rad1 c5 19. Ne4 Nxe4 20. Rxe4 Kf8 21. h4 Kg7 22. h5 Rac8 23. h6+ Kf8 24. Qf6 Ke8 25. Rf4 Qe7 26. Qg7 Qf8 27. Qxh7 Rd7 28. Qg7 Qxg7 29. hxg7 Ke7 30. Rh4 Rg8 31. Rh7 Kf6 32. g4 Kg5 33. f3 f5 34. gxf5 gxf5 35. Kf2 Kf6 36. Rh6+ Kf7 37. Ke3 Rd4 38. b4 f4+ 39. Ke2 Rxg7 40. bxc5 bxc5 41. a4 Rg2+ 42. Kf1 Ra2 43. Rh7+ Kf6 44. Rxa7 Rd8 45. a5 Rh8 46. Kg1 Rhh2 47. Ra8 Rhg2+ 48. Kf1 Rgf2+ 1/2-1/2

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2007.01.29"]
[Round "3"]
[White "Birnkott, Manfred"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "2020"]
[BlackElo "1628"]
[PlyCount "55"]
[EventDate "2007.01.08"]
[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 Bc5 3. Nf3 d6 4. Bc4 Bg4 5. fxe5 dxe5 6. Bxf7+ Kf8 7. Bb3 Nf6 8. Qe2 Nc6 9. c3 Qe7 10. d3 Rd8 11. Be3 Na5 12. Bc2 Bxe3 13. Qxe3 Ke8 14. Qxa7 b6 15. b4 Bxf3 16. gxf3 Nxe4 17. dxe4 Qh4+ 18. Ke2 Rf8 19. Qxc7 Rf7 20. Qxe5+ Kf8 21. bxa5 Qh3 22. Qg3 Qh6 23. Rd1 Re8 24. Qd6+ Qxd6 25. Rxd6 bxa5 26. Na3 Rc8 27. c4 Rb7 28. Rb1 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2007.01.22"]
[Round "2"]
[White "Lessing, Sebastian"]
[Black "Knopp, Udo"]
[Result "1-0"]
[ECO "C27"]
[WhiteElo "1628"]
[PlyCount "51"]
[EventDate "2007.01.08"]
[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. Nc3 Nf6 3. Bc4 Bb4 4. Nge2 0-0 5. 0-0 d6 6. d3 h6 7. a3 Bxc3 8. Nxc3 b6 9. Nd5 Nbd7 10. f4 c6 11. Nxf6+ Nxf6 12. f5 d5 13. exd5 cxd5 14. Bb3 Ba6 15. Qf3 e4 16. Qg3 Nh5 17. Qh3 g6 18. fxg6 fxg6 19. Rxf8+ Kxf8 20. Bxh6+ Ke8 21. Qe6+ Qe7 22. Qxg6+ Qf7 23. Qc6+ Qd7 24. Qxa8+ Bc8 25. Bxd5 Qb7 26. Bxb7 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2007.01.08"]
[Round "1"]
[White "Mroczek, Mathias"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2158"]
[BlackElo "1628"]
[PlyCount "49"]
[EventDate "2007.01.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nc6 3. d4 Bg4 4. Bg2 e6 5. 0-0 h5 6. h3 Bf5 7. c4 dxc4 8. Qa4 Qd7 9. Qxc4 0-0-0 10. Nc3 Nf6 11. Ne5 Nxe5 12. dxe5 Nh7 13. Be3 Kb8 14. Rfd1 Qc8 15. Bxb7 Kxb7 16. Qb5+ Ka8 17. Qc6+ Kb8 18. Nb5 Rxd1+ 19. Rxd1 Bc5 20. Bxc5 Qb7 21. Bxa7+ Ka8 22. Nxc7+ Kxa7 23. Qa4+ Kb8 24. Na6+ Kc8 25. Qc4+ 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.04.18"]
[Round "9"]
[White "Lessing, Sebastian"]
[Black "Selbach, Frank"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1110"]
[BlackElo "1677"]
[PlyCount "50"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 e6 4. Bb5 d5 5. exd5 exd5 6. Qe2+ Be6 7. Ne5 Nge7 8. Bxc6+ Nxc6 9. Nxc6 bxc6 10. 0-0 Bd6 11. Re1 0-0 12. d3 Qc7 13. g3 Qd7 14. Qf3 Rae8 15. Bd2 Bg4 16. Qg2 Qf5 17. Rxe8 Rxe8 18. Re1 Rxe1+ 19. Bxe1 Bh3 20. Qh1 Qg5 21. Qf3 Bg4 22. Qe3 Qf6 23. Na4 Be6 24. c3 d4 25. Qc1 Qf3 0-1

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.04.04"]
[Round "8"]
[White "Depping, Thomas"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "C29"]
[WhiteElo "1661"]
[BlackElo "1110"]
[PlyCount "43"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 exf4 4. e5 Ng8 5. Nf3 Bb4 6. Nd5 Nc6 7. Nxb4 Nxb4 8. d4 d6 9. Bxf4 Bg4 10. Bb5+ c6 11. Be2 Bxf3 12. Bxf3 dxe5 13. Bxe5 f6 14. Bg3 Qa5 15. 0-0 0-0-0 16. Bg4+ Rd7 17. Bxd7+ Kxd7 18. Qg4+ Kd8 19. Qxg7 Nxc2 20. Qxh8 Qd5 21. Qxh7 Nxa1 22. Rxa1 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.03.21"]
[Round "7"]
[White "Lessing, Sebastian"]
[Black "Liebsch, Conrad"]
[Result "1-0"]
[ECO "C25"]
[WhiteElo "1110"]
[BlackElo "794"]
[PlyCount "125"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Bb4 3. a3 Bxc3 4. dxc3 d6 5. Bc4 Nf6 6. Bg5 h6 7. Bxf6 Qxf6 8. Qf3 Qxf3 9. Nxf3 0-0 10. 0-0 Nc6 11. b4 a6 12. a4 Bd7 13. b5 Na5 14. Be2 Bg4 15. h3 Bxf3 16. Bxf3 Nc4 17. Rfd1 axb5 18. axb5 Rxa1 19. Rxa1 Nd2 20. Ra4 Nxf3+ 21. gxf3 f5 22. Ra7 fxe4 23. fxe4 Rb8 24. Kg2 Kf7 25. Kf3 Ke6 26. Kg4 g6 27. f4 Kf6 28. c4 exf4 29. Kxf4 Ke6 30. h4 g5+ 31. hxg5 hxg5+ 32. Kxg5 Ke5 33. Ra3 Kxe4 34. Rd3 Rf8 35. Rd1 Ke5 36. Kg6 c6 37. b6 d5 38. c5 Rf2 39. c3 Ke6 40. Re1+ Kd7 41. Re3 Rf4 42. Rh3 Ke6 43. Rh7 Rg4+ 44. Kh5 Rg3 45. Rxb7 Kf5 46. Kh4 Rxc3 47. Rb8 Rxc5 48. b7 Rb5 49. Rf8+ Ke5 50. b8Q+ Rxb8 51. Rxb8 d4 52. Kg3 Ke4 53. Kf2 c5 54. Rc8 Kd5 55. Ke2 Kc4 56. Kd2 Kb4 57. Kd3 Kb5 58. Rb8+ Kc6 59. Kc4 Kd6 60. Rb6+ Ke5 61. Kxc5 d3 62. Rd6 Ke4 63. Kc4 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.03.07"]
[Round "6"]
[White "Pies, Gerhard"]
[Black "Lessing, Sebastian"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1344"]
[BlackElo "1110"]
[PlyCount "38"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 Nc6 5. Bb2 0-0 6. Nf3 d6 7. e3 Bg4 8. Be2 d5 9. cxd5 Nxd5 10. 0-0 Qd6 11. a3 Ba5 12. d4 Bb6 13. e4 Nf4 14. d5 Nxe2+ 15. Qxe2 Nd4 16. Qd3 Nxf3+ 17. gxf3 Bh3 18. Rc1 Qg6+ 19. Kh1 Qg2# 0-1

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.02.21"]
[Round "5"]
[White "Lessing, Sebastian"]
[Black "Ferfers, Ralph"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1110"]
[BlackElo "1544"]
[PlyCount "70"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 c5 3. Nc3 Nc6 4. Bc4 Qc7 5. d3 a6 6. Be3 b5 7. Bb3 Nf6 8. a3 Bb7 9. Qe2 Rc8 10. Bg5 Nd4 11. Nxd4 cxd4 12. Bxf6 gxf6 13. Na2 a5 14. a4 b4 15. 0-0 Qe5 16. f4 Qc5 17. f5 Qe5 18. fxe6 dxe6 19. Qf3 Bd6 20. Qh3 Ke7 21. Rf2 Rcg8 22. Raf1 Rg6 23. Nc1 Qg5 24. Qf3 Qh4 25. h3 Be5 26. Ne2 Rhg8 27. Rc1 Rg3 28. Nxg3 Rxg3 29. Qxg3 Qxg3 30. Rf3 Qg5 31. Rd1 f5 32. Rdf1 f6 33. R3f2 fxe4 34. dxe4 Bxe4 35. Re2 Bf5 0-1

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.02.14"]
[Round "4"]
[White "Behrens, Wilfried"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1717"]
[BlackElo "1110"]
[PlyCount "57"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bg4 3. Bf4 Nf6 4. e3 e6 5. Be2 Bd6 6. Bg5 Nbd7 7. Nbd2 h6 8. Bh4 e5 9. dxe5 Nxe5 10. Nxe5 Bxe2 11. Nxf7 Bxd1 12. Nxd8 Bxc2 13. Bxf6 gxf6 14. Ne6 Be5 15. Rc1 Bd3 16. Nxc7+ Bxc7 17. Rxc7 Kd8 18. Rc5 Ba6 19. Nf3 Rc8 20. Rxc8+ Kxc8 21. Kd2 Kd7 22. Rc1 h5 23. h4 b5 24. b4 Rg8 25. g3 Bb7 26. Nd4 a6 27. a3 f5 28. Ne2 Kd6 29. Nf4 1-0

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.01.31"]
[Round "3"]
[White "Lessing, Sebastian"]
[Black "Reinartz, Ulrich"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1110"]
[BlackElo "1638"]
[PlyCount "48"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e6 3. Nc3 Nc6 4. d3 Be7 5. Be3 Nf6 6. d4 d5 7. exd5 exd5 8. Bb5 c4 9. Nf3 Bg4 10. h3 Bd7 11. Ne5 Nxe5 12. Bxd7+ Nexd7 13. Qf3 Nb6 14. Bf4 0-0 15. 0-0 h6 16. Nb5 Qd7 17. Nc3 Bd6 18. Bxd6 Qxd6 19. Nb5 Qb4 20. Na3 c3 21. Qxc3 Qxc3 22. bxc3 Ne4 23. f4 Nxc3 24. g4 Rac8 0-1

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.01.17"]
[Round "2"]
[White "Cremerius, Armin"]
[Black "Lessing, Sebastian"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1685"]
[BlackElo "1110"]
[PlyCount "56"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. e3 Bg4 4. c3 e5 5. dxe5 Nxe5 6. Nbd2 Nf6 7. Be2 Bd6 8. Nxe5 Bxe2 9. Qxe2 Bxe5 10. Nf3 Bd6 11. Qb5+ Qd7 12. Qxb7 0-0 13. 0-0 Qa4 14. Qb3 Qa6 15. Qc2 Ng4 16. h3 Nh2 17. Rd1 Nxf3+ 18. gxf3 Qc6 19. Rd4 Qd7 20. Rh4 g6 21. Qa4 Qf5 22. Qg4 Qd3 23. Qd4 Qf5 24. Qg4 Qd3 25. f4 Be7 26. Rh5 f5 27. Qg2 Qd1+ 28. Kh2 Qxh5 0-1

[Event "Leverkusen-ch op"]
[Site "Leverkusen"]
[Date "2005.01.10"]
[Round "1"]
[White "Lessing, Sebastian"]
[Black "Buettner, Ulrich"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1110"]
[BlackElo "1873"]
[PlyCount "80"]
[EventDate "2005.01.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bg4 5. Bf4 Qe7+ 6. Be3 Nf6 7. a3 g6 8. Nc3 c6 9. h3 Bxf3 10. Qxf3 Bg7 11. 0-0-0 0-0 12. Bg5 Nbd7 13. g4 b5 14. h4 b4 15. axb4 Qxb4 16. h5 Rab8 17. b3 Qa3+ 18. Kd2 Qb4 19. Bd3 Qxd4 20. Qf4 Nxg4 21. Qxd4 Bxd4 22. Rdf1 Bg7 23. f3 Ngf6 24. Bf4 Ra8 25. hxg6 fxg6 26. Bh6 Bxh6+ 27. Rxh6 Kg7 28. Rh4 Nc5 29. f4 Nxd3 30. Kxd3 Rae8 31. Na4 Ne4 32. b4 Rf5 33. Nc3 Nxc3 34. Kxc3 Re4 35. Kd3 Rxb4 36. Rfh1 h5 37. Re1 Rbxf4 38. Rxf4 Rxf4 39. Re7+ Kf6 40. Rxa7 Rc4 0-1

[Event "Leverkusen op"]
[Site "Leverkusen"]
[Date "2004.05.03"]
[Round "9"]
[White "Teuber, Alfons"]
[Black "Lessing, Sebastian"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1200"]
[BlackElo "990"]
[PlyCount "159"]
[EventDate "2004.01.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Nc3 Nf6 4. d4 Bg4 5. Be2 exd4 6. Nxd4 Bxe2 7. Qxe2 Be7 8. Qb5+ Nbd7 9. Qxb7 Nc5 10. Qc6+ Nfd7 11. b4 Ne6 12. Nxe6 fxe6 13. Nb5 Rc8 14. Nxa7 Ra8 15. Nb5 Rc8 16. Nd4 Bh4 17. g3 Bf6 18. c3 Qe7 19. Qa6 0-0 20. 0-0 Bxd4 21. cxd4 c5 22. bxc5 dxc5 23. Ba3 Ra8 24. Qd3 Rfc8 25. Rfc1 Ra5 26. Qc3 Rb5 27. Rab1 Rxb1 28. Rxb1 Qf6 29. e5 Qf5 30. Rb7 Rf8 31. Qe1 Rf7 32. dxc5 Nxe5 33. Rb8+ Rf8 34. Rxf8+ Kxf8 35. c6+ Ke8 36. Kf1 Nxc6 37. Qe3 Ne5 38. Qf4 Qh3+ 39. Kg1 Ng6 40. Qb8+ Kf7 41. Qc7+ Kf6 42. Bb2+ e5 43. Qd6+ Kf7 44. Bxe5 Qf5 45. Qc7+ Ne7 46. a4 Qb1+ 47. Kg2 Qe4+ 48. Kh3 Qxa4 49. Bxg7 Qb5 50. Be5 Qf1+ 51. Kh4 Qxf2 52. Qc4+ Kf8 53. Qf4+ Qxf4+ 54. gxf4 Ng6+ 55. Kg5 Kf7 56. Kh6 Kg8 57. Bd6 Nh4 58. Kg5 Nf3+ 59. Kg4 Nxh2+ 60. Kh5 Nf3 61. Kh6 Nd4 62. Be5 Nf3 63. Bg7 Nh4 64. Be5 Nf3 65. Bd6 Nh4 66. Kg5 Nf3+ 67. Kf6 Nd2 68. Ke7 Ne4 69. f5 Nxd6 70. Kxd6 Kf7 71. Ke5 h5 72. Kf4 Kf6 73. Kg3 Kxf5 74. Kh4 Kg6 75. Kg3 Kg5 76. Kh3 h4 77. Kg2 Kg4 78. Kh2 h3 79. Kg1 Kg3 80. Kh1 1/2-1/2

[Event "Leverkusen op"]
[Site "Leverkusen"]
[Date "2004.04.19"]
[Round "8"]
[White "Hoeper, Heinz Joachim"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "C23"]
[WhiteElo "1498"]
[BlackElo "990"]
[PlyCount "80"]
[EventDate "2004.01.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Qh4 3. d3 Bc5 4. Qf3 Qf6 5. Nc3 Bb4 6. Bd2 Qxf3 7. Nxf3 d6 8. Nd5 Bxd2+ 9. Kxd2 Kd8 10. Ng5 Nh6 11. f4 f6 12. Nf3 c6 13. Nc3 exf4 14. Ne2 g5 15. h4 g4 16. Nfd4 c5 17. Ne6+ Bxe6 18. Bxe6 f3 19. Nf4 fxg2 20. Nxg2 Nc6 21. Raf1 Kc7 22. Nf4 Raf8 23. Bb3 Nd4 24. Nd5+ Kd8 25. Rxf6 Rxf6 26. Nxf6 Nxb3+ 27. axb3 Ke7 28. Rf1 g3 29. Nd5+ Kd7 30. Rg1 Rf8 31. Rxg3 b6 32. Rg7+ Kc6 33. b4 Rf7 34. Rxf7 Nxf7 35. Ne7+ Kd7 36. Nf5 Ne5 37. bxc5 dxc5 38. b4 Kc6 39. bxc5 b5 40. h5 b4 1-0

[Event "Leverkusen op"]
[Site "Leverkusen"]
[Date "2004.04.05"]
[Round "7"]
[White "Lessing, Sebastian"]
[Black "Kuhnert, Klaus"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "990"]
[BlackElo "1459"]
[PlyCount "50"]
[EventDate "2004.01.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. d4 a6 5. Bxc6 Nxc6 6. d5 Na7 7. Nxe5 Bd6 8. Bf4 Qf6 9. Qd2 Bxe5 10. Bxe5 Qxe5 11. Nc3 d6 12. 0-0 0-0 13. f4 Qf6 14. e5 dxe5 15. fxe5 Qxe5 16. Rae1 Qd6 17. Ne4 Qb6+ 18. Kh1 Qxb2 19. a4 Bd7 20. Nc5 Rad8 21. Rb1 Qa3 22. Nxd7 Rxd7 23. Rxb7 Nc8 24. a5 Qc5 25. Rf5 Nd6 0-1

[Event "Leverkusen op"]
[Site "Leverkusen"]
[Date "2004.03.15"]
[Round "6"]
[White "Hawelka, Othmar"]
[Black "Lessing, Sebastian"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "965"]
[BlackElo "990"]
[PlyCount "70"]
[EventDate "2004.01.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nc6 3. c4 Nf6 4. Nd2 dxc4 5. Bxc4 Na5 6. Bb5+ Bd7 7. Qa4 c6 8. b4 cxb5 9. Qxa5 Qxa5 10. bxa5 e6 11. Ne2 Bb4 12. Rb1 Bxa5 13. 0-0 0-0 14. Nb3 Bb6 15. Nc5 a6 16. Nxb7 a5 17. Nd6 b4 18. Nc4 Rab8 19. a3 Bb5 20. Ne5 Bxe2 21. Re1 Ba6 22. axb4 Rfc8 23. b5 Bb7 24. Ba3 Bc7 25. Be7 Nd5 26. Bc5 Bxe5 27. Rec1 Bf6 28. g3 Nb4 29. Ra1 Nd3 30. Rc3 Nxc5 31. dxc5 Bxc3 32. Rc1 Rxc5 33. Rd1 Bd2 34. Rxd2 Rc1+ 35. Rd1 Rxd1# 0-1

[Event "Leverkusen op"]
[Site "Leverkusen"]
[Date "2004.03.01"]
[Round "5"]
[White "Lessing, Sebastian"]
[Black "Jankowiak, Frank"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "990"]
[BlackElo "1769"]
[PlyCount "40"]
[EventDate "2004.01.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e3 d5 2. d4 c5 3. Nc3 Nf6 4. dxc5 e6 5. Na4 Qa5+ 6. c3 Bd7 7. Bd3 Bxa4 8. Bc2 Bxc2 9. Qxc2 Qxc5 10. Nf3 Nc6 11. Nd4 Bd6 12. Nxc6 Qxc6 13. 0-0 0-0 14. Rd1 Rac8 15. Rd4 e5 16. Rh4 d4 17. exd4 exd4 18. Rxd4 Rfe8 19. Bg5 Ne4 20. Bd2 Bc5 0-1

[Event "Leverkusen op"]
[Site "Leverkusen"]
[Date "2004.02.16"]
[Round "4"]
[White "Bissmann, Stefan"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1740"]
[BlackElo "990"]
[PlyCount "55"]
[EventDate "2004.01.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Bc4 Nc6 6. Be3 Be6 7. Bxe6 fxe6 8. Nh3 Qd7 9. Qd2 Nd5 10. 0-0 Nxe3 11. fxe3 0-0-0 12. Ng5 Re8 13. Qe2 g6 14. Nf7 Rg8 15. Rad1 Bg7 16. Qc4 Na5 17. Qb4 b6 18. Nb5 Nc6 19. Qa4 Kb7 20. c4 a6 21. Nc3 b5 22. cxb5 axb5 23. Qxb5+ Kc8 24. a4 Nd8 25. Qa6+ Kb8 26. Nb5 Nc6 27. Rc1 Qc8 28. Qxc6 1-0

[Event "Leverkusen op"]
[Site "Leverkusen"]
[Date "2004.01.26"]
[Round "2"]
[White "Lessing, Sebastian"]
[Black "Rosenauer, Horst"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "990"]
[BlackElo "1727"]
[PlyCount "52"]
[EventDate "2004.01.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e3 c5 2. d4 g6 3. dxc5 Bg7 4. Qf3 Nc6 5. Bc4 Nf6 6. Ne2 0-0 7. Bd5 Ne5 8. Qf4 Nxd5 9. Qe4 Qa5+ 10. c3 Qxc5 11. b4 Nxb4 12. cxb4 Qxb4+ 13. Qxb4 Nd3+ 14. Kf1 Nxb4 15. Nbc3 b6 16. Rb1 Nc6 17. Nd5 Ba6 18. Nc7 Bd3 19. Rb3 Bc4 20. Ra3 Rac8 21. Na6 Rfd8 22. Ke1 d5 23. Nd4 Bxa6 24. Rxa6 Nxd4 25. Bb2 Nc2+ 26. Ke2 Bxb2 0-1

[Event "Leverkusen op"]
[Site "Leverkusen"]
[Date "2004.01.12"]
[Round "1"]
[White "Friedsam, Manfred"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1833"]
[BlackElo "990"]
[PlyCount "69"]
[EventDate "2004.01.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nc6 5. Nf3 Bb4+ 6. c3 Bd6 7. Bd3 Be7 8. 0-0 Nf6 9. Qc2 Nxe4 10. Bxe4 Qd6 11. Be3 f5 12. Bxc6+ bxc6 13. Ne5 Ba6 14. Rfe1 Bf6 15. Rad1 0-0 16. f4 Bh4 17. Bf2 Bxf2+ 18. Qxf2 Rfb8 19. Re3 Rb6 20. Rh3 Qe7 21. Qf3 Qe8 22. b4 Bb7 23. Qg3 a5 24. Qh4 h6 25. Nc4 Ba6 26. Nxa5 Ra7 27. Qg3 Qd7 28. Re1 Qe7 29. Rxh6 Kf8 30. Rhxe6 Qf7 31. Qh4 Ra8 32. Qh8+ Qg8 33. Re8+ Rxe8 34. Rxe8+ Kxe8 35. Qxg8+ 1-0

[Event "Leverkusen-ch 15th"]
[Site "Leverkusen"]
[Date "2003.03.17"]
[Round "6"]
[White "Lessing, Sebastian"]
[Black "Seelig, Jochen"]
[Result "0-1"]
[ECO "A00"]
[BlackElo "1257"]
[PlyCount "14"]
[EventDate "2003.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e3 b6 2. Qf3 Nc6 3. Bc4 e6 4. Nh3 Bb7 5. Ng5 Qxg5 6. Nc3 Na5 7. Nb5 Bxf3 0-1

[Event "Leverkusen-ch 15th"]
[Site "Leverkusen"]
[Date "2003.02.24"]
[Round "5"]
[White "Dudenhefner, Ilja"]
[Black "Lessing, Sebastian"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "44"]
[EventDate "2003.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 Bc5 3. Nf3 Nh6 4. h3 Bb4 5. d3 Bxc3+ 6. bxc3 Qf6 7. d4 d5 8. Bg5 Qg6 9. e5 f6 10. Bd3 Qf7 11. Bxh6 gxh6 12. Rb1 Qg8 13. g3 fxe5 14. Nxe5 Nc6 15. Bb5 a6 16. Bxc6+ bxc6 17. Nxc6 Qg6 18. Rg1 Qe4+ 19. Kf1 e5 20. dxe5 Bxh3+ 21. Rg2 Qxg2+ 22. Ke2 Bg4+ 0-1

[Event "Leverkusen-ch 15th"]
[Site "Leverkusen"]
[Date "2003.02.17"]
[Round "4"]
[White "Lessing, Sebastian"]
[Black "Kolbe, Sven"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "62"]
[EventDate "2003.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e3 e5 2. Qh5 Nc6 3. Nf3 g6 4. Qg4 d6 5. Qh4 Be7 6. Qc4 Be6 7. Qe2 Nf6 8. Ng5 Qd7 9. Nxe6 Qxe6 10. Na3 0-0-0 11. Nc4 d5 12. Na3 d4 13. Qc4 Qxc4 14. Nxc4 Bd6 15. Nxd6+ Rxd6 16. b3 dxe3 17. dxe3 Rhd8 18. Be2 Ne4 19. Bf3 f5 20. Ba3 Rd2 21. 0-0 Rxc2 22. Bxe4 fxe4 23. Rfc1 Rcd2 24. f3 exf3 25. gxf3 g5 26. f4 gxf4 27. exf4 exf4 28. b4 f3 29. b5 Rg8+ 30. Kf1 f2 31. bxc6 Rg1# 0-1

[Event "Leverkusen-ch 15th"]
[Site "Leverkusen"]
[Date "2003.02.03"]
[Round "3"]
[White "Hoffmann, Daniela"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1440"]
[PlyCount "21"]
[EventDate "2003.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 e6 2. e4 Qh4 3. Bd3 Nf6 4. Nf3 Qg4 5. 0-0 Nxe4 6. h3 Qg6 7. Ne5 Qf5 8. g4 Qf6 9. Bxe4 Bd6 10. Nf3 Bf4 11. g5 1-0

[Event "Leverkusen-ch 15th"]
[Site "Leverkusen"]
[Date "2003.01.20"]
[Round "2"]
[White "Lessing, Sebastian"]
[Black "Guelden, Ralf"]
[Result "0-1"]
[ECO "A00"]
[BlackElo "1592"]
[PlyCount "34"]
[EventDate "2003.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e3 c5 2. Bc4 e6 3. Nh3 d5 4. Bb3 Bd7 5. Nc3 Nf6 6. 0-0 Be7 7. Ba4 a6 8. Bxd7+ Nbxd7 9. d3 0-0 10. d4 cxd4 11. Qxd4 Rc8 12. Qd3 Nc5 13. Qd4 Nce4 14. Nxe4 Nxe4 15. f3 Nf6 16. e4 Bc5 17. Qxc5 Rxc5 0-1

[Event "Leverkusen-ch 15th"]
[Site "Leverkusen"]
[Date "2003.01.06"]
[Round "1"]
[White "Duester, Frank"]
[Black "Lessing, Sebastian"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1747"]
[PlyCount "55"]
[EventDate "2003.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 Be7 3. Nf3 Nh6 4. Nc3 Bb4 5. Bg5 f6 6. Bd2 Bxc3 7. Bxc3 0-0 8. Bd3 d5 9. 0-0 dxe4 10. Bxe4 Ng4 11. h3 f5 12. Bd3 Nf6 13. Ne5 Nc6 14. Nxc6 bxc6 15. Re1 Ne4 16. Bb4 Re8 17. Bxe4 fxe4 18. Rxe4 Rb8 19. Qe1 Rxb4 20. Qxb4 Qf6 21. Rae1 Rf8 22. Qd2 Re8 23. Qc3 Bb7 24. Qc5 Bc8 25. R1e3 Rf8 26. Rf3 Qxf3 27. gxf3 Rxf3 28. Qxc6 1-0

