[Event "Krefeld Easter op"]
[Site "Krefeld"]
[Date "2025.04.18"]
[Round "2"]
[White "Sommerfeld, Felix Samir"]
[Black "Muhs, Patrick"]
[Result "0-1"]
[ECO "D12"]
[WhiteElo "1819"]
[BlackElo "1553"]
[PlyCount "148"]
[EventDate "2025.04.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB17_2025"]
[SourceDate "2025.04.23"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.23"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Bf5 3. c4 e6 4. Nc3 Nf6 5. d4 Be7 6. Bd3 Bxd3 7. Qxd3 0-0 8. 0-0 Nbd7 9. Re1 c6 10. e4 dxe4 11. Nxe4 Nxe4 12. Rxe4 Nf6 13. Rh4 g6 14. Bg5 Nd7 15. Qe3 Bxg5 16. Nxg5 h5 17. g4 hxg4 18. Nf3 Kg7 19. Qh6+ Kf6 20. Nd2 Ke7 21. Ne4 Nb6 22. Qg5+ Kd7 23. Qxd8+ Raxd8 24. c5 Nd5 25. Nd6 b6 26. a3 b5 27. Rxg4 Ke7 28. b4 Ra8 29. a4 a6 30. Rg3 Nxb4 31. axb5 axb5 32. Rga3 Rxa3 33. Rxa3 Nc2 34. Ra7+ Kf6 35. f4 Nxd4 36. Rc7 b4 37. Kf2 b3 38. Ke1 b2 39. Rb7 Nb5 40. Ne4+ Kf5 41. Nd2 Kxf4 42. Rb6 Ra8 43. Rxc6 Ra1+ 44. Kf2 b1Q 45. Nxb1 Rxb1 46. Rb6 Rb2+ 47. Ke1 Ke5 48. c6 Kd6 49. h4 Kc7 50. Rb7+ Kxc6 51. Rxf7 Rh2 52. Rf6 Kd5 53. Rxg6 Rxh4 54. Rg5+ e5 55. Kd2 Kd4 56. Rg8 Rh2+ 57. Ke1 Ke3 58. Rg3+ Kf4 59. Rb3 Nd4 60. Rc3 e4 61. Kf1 e3 62. Kg1 Ne2+ 63. Kxh2 Nxc3 64. Kg2 Ke4 65. Kf1 Kd3 66. Ke1 e2 67. Kf2 Kd2 68. Kf3 e1Q 69. Kg2 Qe4+ 70. Kf1 Qf4+ 71. Kg2 Ke2 72. Kh3 Qg5 73. Kh2 Kf2 74. Kh1 Qg2# 0-1

[Event "Krefeld Easter op"]
[Site "Krefeld"]
[Date "2025.04.17"]
[Round "1"]
[White "Scheck, Kyrill"]
[Black "Sommerfeld, Felix Samir"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2146"]
[BlackElo "1819"]
[PlyCount "83"]
[EventDate "2025.04.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CB17_2025"]
[SourceDate "2025.04.23"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Bd2 Be7 6. Nf3 c5 7. cxd5 exd5 8. dxc5 Bxc5 9. 0-0 0-0 10. Bg5 Nbd7 11. Nc3 h6 12. Bf4 Qb6 13. Na4 Qb5 14. Nxc5 Nxc5 15. a4 Qa6 16. Nd4 Bd7 17. b4 Nce4 18. b5 Qa5 19. Qe1 Qb6 20. Nf3 Rfe8 21. Be3 Qd8 22. Bd4 Qb8 23. Qb4 a6 24. b6 Bc6 25. Rfc1 Re6 26. Bh3 Qd6 27. Qxd6 Rxd6 28. Be5 Rdd8 29. Bc7 Re8 30. Ne5 g5 31. Bf5 Nd2 32. Nxc6 Nb3 33. Ne5 Nxa1 34. Rxa1 Ne4 35. Bxe4 dxe4 36. Nd7 Kg7 37. Nc5 e3 38. Nxb7 exf2+ 39. Kxf2 Re7 40. Nd6 Rf8 41. Nf5+ Kf6 42. Nxe7 1-0

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.06"]
[Round "9"]
[White "Sommerfeld, Felix Samir"]
[Black "Kasprowski, Henryk"]
[Result "1/2-1/2"]
[ECO "B43"]
[WhiteElo "1544"]
[BlackElo "1742"]
[PlyCount "64"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 b5 7. a3 Bb7 8. Bg2 Nf6 9. 0-0 d6 10. Be3 Nbd7 11. Re1 Nc5 12. Bg5 Be7 13. Nb3 0-0 14. Qe2 h6 15. Nxc5 Qxc5 16. Be3 Qc7 17. Rad1 Rfd8 18. Kh1 Nd7 19. f4 Bf6 20. Bd4 Bxd4 21. Rxd4 Nb6 22. Na2 d5 23. Red1 dxe4 24. Bxe4 Bxe4+ 25. Qxe4 Nd5 26. Nb4 Nxb4 27. Rxd8+ Rxd8 28. Rxd8+ Qxd8 29. axb4 a5 30. bxa5 Qxa5 31. Kg2 Qd2+ 32. Kh3 Qd7 1/2-1/2

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.06"]
[Round "8"]
[White "Wiedenbruch, Silke"]
[Black "Sommerfeld, Felix Samir"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1201"]
[BlackElo "1544"]
[PlyCount "94"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e5 5. Nf3 Nc6 6. Bc4 Bc5 7. Bxf7+ Kxf7 8. Qd5+ Kf8 9. Qxc5+ d6 10. Qc4 h6 11. 0-0 Qf6 12. Nd5 Be6 13. Qd3 Qf7 14. Rd1 Bg4 15. a3 Nd4 16. Nxd4 Bxd1 17. Qxd1 exd4 18. Qxd4 Nf6 19. Nc3 Qe6 20. f3 Qe5 21. Be3 Qxd4 22. Bxd4 Ke7 23. Ne2 b6 24. Rc1 Rac8 25. Be3 Rxc1+ 26. Bxc1 Rc8 27. b4 Rc2 28. Kf2 d5 29. e5 Nd7 30. f4 d4 31. Ke1 d3 32. Nd4 Rxc1+ 33. Kd2 Rh1 34. Nc6+ Ke6 35. Nxa7 Rxh2 36. Kxd3 Rxg2 37. Ke3 Rg3+ 38. Ke4 h5 39. f5+ Ke7 40. Nc6+ Ke8 41. a4 h4 42. e6 Nf6+ 43. Ke5 h3 44. a5 bxa5 45. bxa5 h2 46. a6 h1Q 47. a7 Qxc6 0-1

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.05"]
[Round "6"]
[White "Bahr, Jan Hendrik"]
[Black "Sommerfeld, Felix Samir"]
[Result "1-0"]
[ECO "A83"]
[WhiteElo "1709"]
[BlackElo "1544"]
[PlyCount "63"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. Bg5 e6 4. e4 fxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 0-0 8. Bd3 Nc6 9. c3 b6 10. Qc2 a5 11. Nxf6+ Qxf6 12. Bxh7+ Kf7 13. Bd3 Qf4 14. h4 Bb7 15. Rh3 Ne7 16. Ne5+ Ke8 17. g3 Qf6 18. Rh2 d6 19. Ng6 Rf7 20. 0-0-0 Bf3 21. Re1 Bh5 22. Nf4 Qh6 23. Rxe6 Rf6 24. Rxf6 gxf6 25. Kb1 Kf7 26. Qb3+ Kg7 27. Rh1 Ng6 28. Nxh5+ Qxh5 29. Re1 Qf3 30. Qc2 Nh8 31. Be4 Qg4 32. Bxa8 1-0

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.05"]
[Round "7"]
[White "Sommerfeld, Felix Samir"]
[Black "Freese, Carsten"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1544"]
[BlackElo "1716"]
[PlyCount "54"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 c6 4. Nc3 d6 5. Be3 Nf6 6. h3 Nbd7 7. a4 Qa5 8. Bd3 e5 9. dxe5 dxe5 10. Qd2 0-0 11. 0-0 Re8 12. Bh6 Nc5 13. Bxg7 Kxg7 14. Bc4 Nh5 15. Ng5 f6 16. Nf7 Be6 17. Bxe6 Rxe6 18. Nd8 Rxd8 19. Qe3 Qb4 20. Rfd1 Red6 21. Rxd6 Rxd6 22. Na2 Qd4 23. Qa3 Nxe4 24. Kh2 Qxf2 25. Nc3 Nf4 26. Rg1 Qg3+ 27. Kh1 Nf2# 0-1

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.04"]
[Round "5"]
[White "Sommerfeld, Felix Samir"]
[Black "Bigott, Martin"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "1544"]
[BlackElo "1862"]
[PlyCount "77"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Ng8 3. d4 d6 4. exd6 Qxd6 5. Nf3 Bg4 6. Be2 Nc6 7. Be3 e6 8. Nc3 Nf6 9. 0-0 a6 10. h3 Bh5 11. Qd2 0-0-0 12. Rfd1 h6 13. a3 g5 14. Nh2 Bxe2 15. Qxe2 Nd5 16. Nxd5 exd5 17. Qg4+ Rd7 18. Nf3 Bg7 19. Nh4 Ne7 20. Nf5 Qf6 21. Nxe7+ Qxe7 22. Qf5 Qe4 23. Qxe4 dxe4 24. g4 Rhd8 25. c3 c5 26. Rd2 cxd4 27. cxd4 Bxd4 28. Rc1+ Kb8 29. Rcd1 Bxe3 30. Rxd7 Rxd7 31. Rxd7 Bc1 32. Rxf7 Bxb2 33. a4 Ka7 34. Re7 Kb6 35. Kf1 Kc6 36. Rxe4 Kc5 37. Ke2 b5 38. axb5 axb5 39. Kd3 1-0

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.03"]
[Round "3"]
[White "Sommerfeld, Felix Samir"]
[Black "Marks, Stefan"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "1544"]
[BlackElo "1202"]
[PlyCount "77"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 Nc6 4. Nc3 Bc5 5. Bg5 h6 6. Bh4 d6 7. Be2 g5 8. Bg3 Nh5 9. Na4 Nxg3 10. hxg3 Nd4 11. Nxc5 dxc5 12. Nxe5 Qe7 13. Nf3 Be6 14. c3 Nxf3+ 15. Bxf3 0-0-0 16. Qa4 a6 17. 0-0-0 g4 18. Be2 f5 19. Rh4 fxe4 20. Qxe4 Qg5+ 21. Kb1 Rhe8 22. Bxg4 Bxg4 23. Qxg4+ Qxg4 24. Rxg4 Re2 25. Rf4 Rd6 26. Kc1 Rb6 27. Rf8+ Kd7 28. d4 Rbxb2 29. dxc5+ Kc6 30. Rd3 Rxa2 31. Kd1 Rxf2 32. Rxf2 Rxf2 33. Rf3 Rxg2 34. Rf6+ Kxc5 35. Rxh6 Rxg3 36. Kc2 Rg4 37. Rh7 Kc6 38. Rh6+ Kd7 39. Rh7+ 1/2-1/2

[Event "Krefeld op"]
[Site "Krefeld"]
[Date "2023.08.02"]
[Round "1"]
[White "Sommerfeld, Felix Samir"]
[Black "Karl, Florian"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1544"]
[BlackElo "1781"]
[PlyCount "48"]
[EventDate "2023.08.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 d6 5. Bc4 Nf6 6. 0-0 0-0 7. d3 a6 8. a4 Nc6 9. Be3 e6 10. h3 b6 11. Qd2 d5 12. e5 Ne8 13. f5 gxf5 14. Bg5 Qd7 15. Ba2 Nxe5 16. Bh6 Ng6 17. Bxg7 Kxg7 18. Ne2 Bb7 19. Nf4 Nxf4 20. Qxf4 f6 21. g4 fxg4 22. Ne5 Qc7 23. Qxg4+ Kh8 24. Qh4 Qxe5 0-1

