[Event "Marburg op-B"]
[Site "Marburg"]
[Date "2023.10.29"]
[Round "7"]
[White "Hartmann, Lucas1"]
[Black "Rittel, Christoph"]
[Result "1/2-1/2"]
[ECO "A21"]
[PlyCount "65"]
[EventDate "2023.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 f5 3. e3 Nf6 4. Nge2 d6 5. g3 c6 6. Bg2 Be7 7. 0-0 0-0 8. d4 Na6 9. a3 Qe8 10. Qc2 Qg6 11. dxe5 dxe5 12. b4 Nc7 13. Bb2 Be6 14. c5 Ncd5 15. Nxd5 Bxd5 16. Bxe5 Bxg2 17. Kxg2 Nd5 18. Qb3 Qf7 19. Kg1 Bf6 20. Bxf6 Qxf6 21. Rfd1 Kh8 22. Ra2 Rad8 23. Rad2 h6 24. Rd4 a6 25. Qd3 g5 26. f3 Kh7 27. e4 fxe4 28. Qxe4+ Kh8 29. Qd3 Qxf3 30. Qxf3 Rxf3 31. R1d3 Rdf8 32. Rxf3 Rxf3 33. Re4 1/2-1/2

[Event "Marburg op-B"]
[Site "Marburg"]
[Date "2023.10.29"]
[Round "6"]
[White "Rittel, Christoph"]
[Black "Friedel, Thomas"]
[Result "0-1"]
[ECO "D02"]
[BlackElo "1541"]
[PlyCount "40"]
[EventDate "2023.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 c5 5. c3 Be7 6. Bd3 Nbd7 7. Ngf3 0-0 8. Ne5 c4 9. Bc2 Bd6 10. Nxf7 Rxf7 11. Bxd6 Qb6 12. Ba3 Qc7 13. g4 Nf8 14. g5 Ne8 15. Bxf8 Rxf8 16. Bxh7+ Kxh7 17. Qh5+ Kg8 18. g6 Nf6 19. Qh3 e5 20. Nf3 Bxh3 0-1

[Event "Marburg op-B"]
[Site "Marburg"]
[Date "2023.10.28"]
[Round "5"]
[White "Koch, Mika Jonas"]
[Black "Rittel, Christoph"]
[Result "1/2-1/2"]
[ECO "A21"]
[PlyCount "107"]
[EventDate "2023.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 f5 3. d3 Nf6 4. Nf3 d6 5. g3 c6 6. Bg2 Be7 7. Qc2 0-0 8. 0-0 Na6 9. a3 Qe8 10. Re1 Qg6 11. Bd2 f4 12. Rac1 fxg3 13. fxg3 Nh5 14. d4 Qg4 15. Qe4 Qxe4 16. Nxe4 Nf6 17. Nxf6+ gxf6 18. e4 Be6 19. d5 cxd5 20. cxd5 Bd7 21. Be3 Nc5 22. Bxc5 dxc5 23. Red1 Bd6 24. Nd2 Bg4 25. Rf1 b5 26. Bf3 Bd7 27. Be2 a6 28. b3 Rac8 29. Kf2 f5 30. Kg2 Be7 31. exf5 Bxf5 32. Rxf5 Rxf5 33. Bg4 Rff8 34. Bxc8 Rxc8 35. Ne4 c4 36. d6 Bd8 37. b4 Bb6 38. Nc5 Bxc5 39. bxc5 Rxc5 40. Rd1 Rc8 41. Kf3 Kf7 42. Ke4 Ke6 43. Rd5 c3 44. Rxe5+ Kxd6 45. Rd5+ Ke6 46. Rd1 c2 47. Rc1 a5 48. Kd3 b4 49. axb4 axb4 50. Rxc2 Rd8+ 51. Ke4 b3 52. Rb2 Rb8 53. Kd4 Kf5 54. h3 1/2-1/2

[Event "Marburg op-B"]
[Site "Marburg"]
[Date "2023.10.28"]
[Round "4"]
[White "Rittel, Christoph"]
[Black "Wuensch, Aurel"]
[Result "1/2-1/2"]
[ECO "A80"]
[PlyCount "118"]
[EventDate "2023.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 g6 3. h4 Bh6 4. Qd2 Bg7 5. h5 Nf6 6. hxg6 hxg6 7. Rxh8+ Bxh8 8. c3 d6 9. Qd3 Ne4 10. Qh3 Nxg5 11. Qxh8+ Kd7 12. Qh6 e6 13. Qxg6 Qe7 14. d5 c6 15. dxe6+ Kc7 16. Qxf5 Bxe6 17. Qd3 Nd7 18. Na3 Qf6 19. Nf3 Bf5 20. Qd2 Ne4 21. Qd4 Ne5 22. 0-0-0 Qh6+ 23. Qe3 Qe6 24. Nd4 Qf6 25. Nxf5 Qxf5 26. f3 Nc5 27. Qd2 Rd8 28. Qd4 b6 29. Nc4 Ne6 30. Nxd6 Qg5+ 31. f4 Qxf4+ 32. Qxf4 Nxf4 33. e3 Nxg2 34. Nb5+ cxb5 35. Rxd8 Kxd8 36. Bxg2 Kc7 37. Kd2 Nc4+ 38. Kd3 Nxb2+ 39. Kd4 Nc4 40. Bf1 Nd6 41. e4 a6 42. Kd5 Nc8 43. e5 Ne7+ 44. Ke6 Kd8 45. Bg2 a5 46. Bf1 b4 47. cxb4 axb4 48. Bb5 Ng6 49. Kf6 Ne7 50. e6 Nd5+ 51. Kf7 Ne7 52. Kf6 Nd5+ 53. Ke5 Nc7 54. Bc4 Ke7 55. Kd4 Kd6 56. Bb3 b5 57. Ke4 Nxe6 58. Bxe6 Kxe6 59. Kd4 Kd6 1/2-1/2

[Event "Marburg op-B"]
[Site "Marburg"]
[Date "2023.10.27"]
[Round "2"]
[White "Rittel, Christoph"]
[Black "Filis, Leon"]
[Result "1/2-1/2"]
[ECO "A43"]
[PlyCount "91"]
[EventDate "2023.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. d4 c5 2. dxc5 e6 3. Bf4 Bxc5 4. Bd6 Qa5+ 5. Nc3 Ne7 6. Bxc5 Qxc5 7. e4 0-0 8. Nf3 b6 9. Qd4 Qxd4 10. Nxd4 Nbc6 11. Ndb5 Bb7 12. Nd6 Rab8 13. Nxb7 Rxb7 14. 0-0-0 Rd8 15. Rd6 Rc7 16. Bb5 Nc8 17. Rd2 Nb8 18. Rhd1 a6 19. Be2 b5 20. a3 Nb6 21. e5 Nc4 22. Bxc4 Rxc4 23. Rd4 Rxd4 24. Rxd4 Nc6 25. Re4 d6 26. exd6 Rxd6 27. f4 Rd4 28. g3 Rxe4 29. Nxe4 e5 30. fxe5 Nxe5 31. Nc5 a5 32. Kd1 Nc4 33. Kc1 a4 34. Na6 Nd6 35. b3 axb3 36. cxb3 Kf8 37. Nc7 Ke7 38. a4 bxa4 39. bxa4 Kd7 40. Nd5 Kc6 41. Ne7+ Kc5 42. Kd2 Kb4 43. Kd3 Kxa4 44. Kd4 Ne8 45. g4 Kb3 46. Kd3 1/2-1/2

[Event "Marburg op-B"]
[Site "Marburg"]
[Date "2023.10.27"]
[Round "3"]
[White "Schulmeier, Gerd Bernd"]
[Black "Rittel, Christoph"]
[Result "0-1"]
[ECO "A41"]
[PlyCount "94"]
[EventDate "2023.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. d4 d6 2. Bf4 g6 3. Nf3 Bg7 4. e3 Nd7 5. c3 e5 6. Bg5 f6 7. Bh4 Nh6 8. h3 Nf5 9. g4 Nxh4 10. Nxh4 0-0 11. Bc4+ Kh8 12. Nxg6+ hxg6 13. h4 Nb6 14. Bd3 f5 15. h5 g5 16. h6 Qf6 17. hxg7+ Kxg7 18. gxf5 Bxf5 19. Bxf5 Qxf5 20. Rh2 Rh8 21. Rxh8 Rxh8 22. Qe2 Rh1+ 23. Kd2 Rxb1 24. Rxb1 Qxb1 25. Qd3 Qxd3+ 26. Kxd3 Kf6 27. b4 d5 28. e4 c6 29. dxe5+ Kxe5 30. exd5 cxd5 31. Ke3 Na4 32. Kd3 Nxc3 33. Kxc3 Ke4 34. Kd2 Kf3 35. Ke1 b5 36. Kd2 Kxf2 37. Kd3 g4 38. Kd4 g3 39. Kxd5 g2 40. Kc5 a6 41. Kb6 g1Q 42. Kxa6 Qg5 43. Ka5 Ke2 44. a3 Kd3 45. Ka6 Kc4 46. Ka5 Qd8+ 47. Ka6 Qa8+ 0-1

[Event "Marburg op-B"]
[Site "Marburg"]
[Date "2023.10.26"]
[Round "1"]
[White "Hennings, Christian"]
[Black "Rittel, Christoph"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "65"]
[EventDate "2023.10.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 d6 2. Bc4 Nf6 3. d3 Nbd7 4. Nc3 c6 5. Nge2 a5 6. a4 e5 7. 0-0 Nb6 8. Bb3 d5 9. exd5 Nbxd5 10. Bg5 Be7 11. h3 Ng8 12. Bxe7 Ngxe7 13. Nxd5 Nxd5 14. Qd2 0-0 15. f4 exf4 16. Nxf4 Qg5 17. Bxd5 cxd5 18. Qf2 Be6 19. Qb6 Bc8 20. Rae1 Ra6 21. Qd4 Be6 22. Re5 Qd8 23. Qe3 d4 24. Qe4 Bc8 25. Re1 g6 26. Re8 Qd7 27. Re7 Qd6 28. Nd5 Be6 29. Nf6+ Kg7 30. Qh4 h6 31. Rxb7 Bd5 32. Qxd4 Bxb7 33. Nh5+ 1-0

