[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "4"]
[White "Andreassen, Lars"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2168"]
[BlackElo "2250"]
[PlyCount "88"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Bg4 3. e4 Nf6 4. Nc3 e6 5. Bg5 Be7 6. Qd2 d5 7. exd5 Nxd5 8. Bxe7 Qxe7 9. Be2 0-0 10. 0-0 Rd8 11. Rfe1 c5 12. Ne5 Bxe2 13. Rxe2 Nxc3 14. bxc3 Nd7 15. Rae1 Nxe5 16. Rxe5 cxd4 17. cxd4 Qc7 18. d5 Rac8 19. Qe3 Qc5 20. dxe6 Qxe3 21. exf7+ Kxf7 22. R5xe3 Rd7 23. c3 Rdc7 24. Rf3+ Kg8 25. Ree3 b5 26. a3 Rc4 27. g3 h6 28. Re7 R8c7 29. Rxc7 Rxc7 30. Kg2 Rc4 31. Rf5 a6 32. Rf3 Ra4 33. Re3 Rxa3 34. Kf3 Rb3 35. Ke4 Rb2 36. Rf3 a5 37. Kd5 a4 38. Re3 Rxf2 39. h4 Rb2 40. Kc5 Rb3 41. Kd4 b4 42. cxb4 Rxe3 43. Kxe3 a3 44. Kd3 a2 0-1

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "6"]
[White "Balint, Vilmos"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2217"]
[BlackElo "2250"]
[PlyCount "99"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. f3 Nbd7 5. Be3 c6 6. Qd2 h5 7. a4 Be7 8. Bc4 Qc7 9. Nge2 b6 10. 0-0 Bb7 11. Rfd1 a6 12. Bb3 0-0 13. Bg5 b5 14. Ng3 g6 15. Nce2 Rfe8 16. Bh4 d5 17. Qh6 Bf8 18. Qg5 Nh7 19. Qe3 exd4 20. Nxd4 c5 21. Nde2 c4 22. Ba2 Bc5 23. Nd4 dxe4 24. Nxe4 Bxe4 25. fxe4 Qe5 26. Bf2 Qxe4 27. Qxe4 Rxe4 28. axb5 axb5 29. Nxb5 Bxf2+ 30. Kxf2 Ne5 31. Nd6 Rf4+ 32. Kg1 Nf6 33. Rf1 Rxf1+ 34. Kxf1 Kg7 35. b4 Nc6 36. b5 Nd4 37. b6 Nxc2 38. b7 Rb8 39. Rc1 Nb4 40. Bxc4 Nc6 41. Bxf7 Na5 42. Rb1 Kf8 43. Be6 Ke7 44. Rb6 Nd7 45. Nc8+ Kd8 46. Rd6 Kc7 47. Rxd7+ Kc6 48. Rg7 Nxb7 49. Bd5+ Kc5 50. Bxb7 1-0

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "9"]
[White "Derichs, Roger"]
[Black "Ernst, Luca"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2250"]
[BlackElo "2154"]
[PlyCount "133"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. b3 Nc6 4. Bb2 e6 5. g3 Be7 6. Bg2 d5 7. 0-0 0-0 8. e3 b6 9. Nc3 Ba6 10. Qe2 Rc8 11. Rfd1 d4 12. exd4 cxd4 13. Nb5 d3 14. Qe3 Bc5 15. Qf4 Bxb5 16. cxb5 Nb4 17. Ne5 Nbd5 18. Qf3 Nb4 19. Nc6 Nxc6 20. bxc6 Bd4 21. Bxd4 Qxd4 22. Rac1 Rc7 23. Rc4 Qd6 24. b4 e5 25. b5 e4 26. Qe3 Re8 27. Qd4 Qe5 28. a4 Kf8 29. Qxe5 Rxe5 30. f3 exf3 31. Bxf3 Ne8 32. Rd4 a6 33. Rb1 axb5 34. axb5 Ra7 35. Rxd3 Ra5 36. Rd8 Ke7 37. Rd7+ Ke6 38. d4 Rexb5 39. d5+ Kf6 40. Rxb5 Rxb5 41. c7 Rc5 42. d6 Ke6 43. Re7+ Kxd6 44. Rxe8 Rxc7 45. Re2 g6 46. Kf2 h5 47. Rb2 Rc3 48. Rxb6+ Ke5 49. Rb2 Kf6 50. Re2 Kg5 51. h3 f5 52. Kg2 h4 53. Rd2 hxg3 54. Kxg3 f4+ 55. Kg2 Ra3 56. Re2 Rb3 57. Re8 Rb2+ 58. Be2 Kh4 59. Rh8+ Kg5 60. Kf3 Rb3+ 61. Kf2 Rb2 62. h4+ Kf5 63. Rf8+ Ke4 64. Rf6 Rb5 65. Rxg6 Kf5 66. Rg5+ Kf6 67. Rxb5 1-0

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "11"]
[White "Derichs, Roger"]
[Black "Fernandez, Gerardo"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2250"]
[BlackElo "2181"]
[PlyCount "76"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nbd2 d5 5. h3 0-0 6. e3 Nc6 7. Be2 Nd7 8. c4 e5 9. cxd5 exf4 10. dxc6 fxe3 11. cxd7 exd2+ 12. Qxd2 Bxd7 13. 0-0 Bf5 14. Rfe1 c5 15. Rad1 cxd4 16. Nxd4 Bxd4 17. Qxd4 Qxd4 18. Rxd4 Rfe8 19. Kf1 Rac8 20. Red1 Rc2 21. R4d2 Rec8 22. Bf3 b6 23. Ke2 Kf8 24. Rxc2 Rxc2+ 25. Rd2 Rxd2+ 26. Kxd2 Ke7 27. Ke3 Kd6 28. Kd4 f6 29. h4 h6 30. b4 g5 31. g3 Bb1 32. a3 Bg6 33. Be4 Bf7 34. f4 gxh4 35. gxh4 Bb3 36. Bd3 Bd5 37. Bc2 Bg2 38. Bf5 Bf3 1/2-1/2

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "5"]
[White "Derichs, Roger"]
[Black "Golubev, Mikhail"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "2250"]
[BlackElo "2461"]
[PlyCount "56"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. Nc3 d6 4. d4 Nf6 5. e4 0-0 6. Be3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nd5 Na6 10. 0-0-0 Bg4 11. h3 Bxf3 12. gxf3 c6 13. Nxf6+ Bxf6 14. Be2 Nc7 15. f4 exf4 16. Bxf4 Ne6 17. Be3 Bd4 18. Bxd4 Nxd4 19. Bd3 Ne6 20. Kc2 Kg7 21. Kc3 Kf6 22. h4 Nf4 23. c5 Ke5 24. f3 Ne6 25. Bc4 Nxc5 26. Bxf7 Rxd1 27. Rxd1 Rf8 28. f4+ Kxf4 0-1

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "3"]
[White "Derichs, Roger"]
[Black "Iskusnyh, Sergei"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2250"]
[BlackElo "2440"]
[PlyCount "52"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c3 c6 4. Qc2 g6 5. Bf4 Bg7 6. e3 Bf5 7. Qb3 Qc8 8. h3 0-0 9. Nbd2 c5 10. g4 Be6 11. Qa3 cxd4 12. cxd4 Nc6 13. Be2 Ne4 14. Rc1 Qd7 15. 0-0 Bxg4 16. hxg4 Qxg4+ 17. Bg3 Nxd2 18. Nxd2 Qxe2 19. Rc2 h5 20. Rfc1 Qg4 21. Kh1 e5 22. dxe5 Nxe5 23. Nf1 Qe4+ 24. Kh2 Nf3+ 25. Kh3 Qg4+ 26. Kg2 h4 0-1

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "7"]
[White "Derichs, Roger"]
[Black "Kaganskiy, Gleb"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2250"]
[BlackElo "2126"]
[PlyCount "52"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. b3 c5 7. e3 d4 8. exd4 cxd4 9. Re1 Nc6 10. Ne5 Nxe5 11. Rxe5 Ne8 12. d3 f6 13. Re2 e5 14. h3 Nd6 15. f4 Nf7 16. Na3 Rb8 17. Nc2 Bd7 18. fxe5 fxe5 19. Ba3 Bxa3 20. Nxa3 Bc6 21. Nc2 Bxg2 22. Kxg2 b5 23. c5 Qd5+ 24. Kh2 Ng5 25. Ne1 Rf1 26. Rg2 Rxe1 0-1

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "2"]
[White "Derichs, Roger"]
[Black "Thiel, Thomas"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2250"]
[BlackElo "2148"]
[PlyCount "59"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 0-0 5. g3 c6 6. Bg2 d5 7. cxd5 cxd5 8. 0-0 a6 9. d3 Nc6 10. Qb3 h6 11. Ne5 Nxe5 12. Bxe5 Be6 13. Nd2 d4 14. Qb2 Bd5 15. Bxd4 Bxg2 16. Kxg2 Qd5+ 17. Nf3 Rfd8 18. Rac1 Rac8 19. a3 g5 20. h3 h5 21. Rxc8 Rxc8 22. Kg1 Qf5 23. Kh2 g4 24. Nh4 Qe6 25. e4 gxh3 26. Nf5 Bh8 27. Kxh3 Rd8 28. Kg2 Nxe4 29. Bxh8 Qxf5 30. Qg7# 1-0

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "8"]
[White "Gao, Raymond"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1938"]
[BlackElo "2250"]
[PlyCount "69"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. 0-0 0-0 7. a4 a5 8. Re1 c6 9. h3 Nb6 10. Bb3 exd4 11. Nxd4 Nfd7 12. Nf5 Nc5 13. Nxe7+ Qxe7 14. Bf4 Rd8 15. Qh5 Nxb3 16. cxb3 Be6 17. e5 dxe5 18. Qxe5 Qb4 19. Qg5 f6 20. Qg3 Bf7 21. Re7 Nd5 22. Nxd5 Rxd5 23. Bh6 g6 24. Rae1 Qd6 25. Qxd6 Rxd6 26. Rxb7 Re6 27. Rd1 Be8 28. Rg7+ Kh8 29. Rc7 g5 30. g4 Kg8 31. Rg7+ Kh8 32. Rc7 Kg8 33. Rg7+ Kh8 34. Rb7 Kg8 35. Rg7+ 1/2-1/2

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "10"]
[White "Hrescak, Ivana"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2117"]
[BlackElo "2250"]
[PlyCount "39"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 g6 7. g5 Nh5 8. Be3 b5 9. a3 Bb7 10. Qd2 a5 11. d5 cxd5 12. Nxd5 Bc6 13. 0-0-0 b4 14. axb4 axb4 15. Qxb4 Nc5 16. Bxc5 dxc5 17. Qc4 Qa5 18. Nxe5 Bxd5 19. Qxd5 Be7 20. Qxf7# 1-0

[Event "Titled Tuesday intern op 22nd Aug Early"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "1"]
[White "Kravtsiv, Martyn"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2598"]
[BlackElo "2250"]
[PlyCount "49"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 0-0 7. 0-0 a5 8. Re1 c6 9. h3 exd4 10. Nxd4 Nc5 11. Qf3 Be6 12. Bf1 Qd7 13. b3 h6 14. Ba3 Nh7 15. Rad1 Na6 16. Bxa6 Rxa6 17. Nxe6 fxe6 18. Qg3 d5 19. Bxe7 Qxe7 20. exd5 cxd5 21. Nxd5 Qf7 22. Ne3 Rc6 23. Nc4 Rc5 24. Ne5 Qf5 25. Nd7 1-0

[Event "Bamberg op-A 5th"]
[Site "Bamberg"]
[Date "2023.07.30"]
[Round "7"]
[White "Burdalev, Kirill"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2363"]
[BlackElo "2286"]
[PlyCount "54"]
[EventDate "2023.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 c6 4. Qc2 dxc4 5. Qxc4 Nf6 6. g3 b5 7. Qc2 Bb7 8. a4 Nbd7 9. Be3 Rc8 10. Nc3 Qa5 11. Bd2 b4 12. Ne4 c5 13. Nxf6+ Nxf6 14. Rc1 c4 15. b3 cxb3 16. Qxb3 Rxc1+ 17. Bxc1 Bd5 18. Qd3 b3+ 19. Bd2 Qxa4 20. Qc3 Bd6 21. Bg2 Ne4 22. Qa5 Qxa5 23. Bxa5 b2 24. 0-0 Ba2 25. Ne5 b1Q 26. Rxb1 Bxb1 27. Nc4 Ke7 0-1

[Event "Bamberg op-A 5th"]
[Site "Bamberg"]
[Date "2023.07.29"]
[Round "6"]
[White "Derichs, Roger"]
[Black "Woithe, Daniel"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2286"]
[BlackElo "2106"]
[PlyCount "85"]
[EventDate "2023.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nf6 5. Nc3 Nc6 6. e3 a6 7. Be2 Ne4 8. f3 Nxc3 9. bxc3 g6 10. Bd3 Bg7 11. Ne2 0-0 12. 0-0 e5 13. Bg3 Re8 14. Bf2 Be6 15. Qd2 Qd7 16. Rfc1 b5 17. a4 Na5 18. Qb2 exd4 19. Nxd4 Nc4 20. Bxc4 bxc4 21. Qd2 Rac8 22. a5 Bf5 23. Bg3 Bd3 24. Re1 Be5 25. Kf2 Bxg3+ 26. hxg3 Rb8 27. Ra2 Rb7 28. Rb2 Reb8 29. Rxb7 Qxb7 30. Ra1 Qb2 31. Qxb2 Rxb2+ 32. Kg1 Kf8 33. Nc6 Rb3 34. Nb4 Rxc3 35. Nxa6 Rb3 36. Nc5 Ke7 37. a6 Rb8 38. a7 Ra8 39. Nxd3 cxd3 40. Kf2 Kd6 41. Ke1 Kc5 42. Kd2 Kc4 43. Rc1+ 1-0

[Event "Bamberg op-A 5th"]
[Site "Bamberg"]
[Date "2023.07.29"]
[Round "5"]
[White "Zimm, Justus"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2065"]
[BlackElo "2286"]
[PlyCount "112"]
[EventDate "2023.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. Qg4 g6 8. h4 h6 9. h5 g5 10. f4 f5 11. Qg3 g4 12. dxc5 Nge7 13. Rb1 0-0 14. Bd3 Qa5 15. Ne2 Rb8 16. Kf2 Qxc5+ 17. Be3 Qa5 18. Rb5 Qd8 19. Bc5 b6 20. Bd6 Ra8 21. c4 Rf7 22. cxd5 Nxd5 23. Rd1 Nde7 24. Bc4 Na5 25. Ba2 Qe8 26. Nd4 Nec6 27. Nxc6 Qxc6 28. Qd3 Bd7 29. Rb4 Rc8 30. Rd2 b5 31. Rxb5 Qxb5 32. Qxb5 Bxb5 33. Bxe6 Nc4 34. Rd5 Nxd6 35. exd6 Rxc2+ 36. Kg3 Bd7 37. Bxf7+ Kxf7 38. Re5 Be6 39. Ra5 Rd2 40. Rxa7+ Kf6 41. Rh7 Rxd6 42. Rxh6+ Kg7 43. Rg6+ Kf7 44. Kh4 Rd2 45. g3 Rd3 46. a4 Ra3 47. a5 Rxa5 48. Kg5 Ra3 49. h6 Ra8 50. Rg7+ Kf8 51. Kf6 Bc8 52. Kg6 Ra6+ 53. Kh7 Be6 54. Kh8 Bf7 55. h7 Rg6 56. Rxg6 Bxg6 1/2-1/2

[Event "Bamberg op-A 5th"]
[Site "Bamberg"]
[Date "2023.07.28"]
[Round "4"]
[White "Derichs, Roger"]
[Black "Stork, Christopher"]
[Result "1-0"]
[ECO "E08"]
[WhiteElo "2286"]
[BlackElo "2065"]
[PlyCount "97"]
[EventDate "2023.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Bb4+ 5. Bd2 Be7 6. Bg2 0-0 7. 0-0 c6 8. Qc2 Nbd7 9. Bf4 b6 10. cxd5 cxd5 11. Bc7 Qe8 12. Nc3 a6 13. a4 Bb7 14. Qb3 Bd8 15. Bf4 Rc8 16. Rfc1 Bc7 17. Rc2 Bxf4 18. gxf4 Qe7 19. Rac1 h6 20. e3 Rfe8 21. Kh1 Qd6 22. Ne5 Qb8 23. Bf3 Nxe5 24. fxe5 Nd7 25. Rg1 Qa8 26. Rg2 Bc6 27. Rc1 Qb7 28. Rcg1 g6 29. Ne2 Nf8 30. Nf4 Re7 31. Be2 b5 32. a5 Be8 33. Bd3 Rec7 34. Qd1 Kh7 35. h4 b4 36. h5 b3 37. hxg6+ fxg6 38. Qh5 Rc1 39. Nxg6 Rxg1+ 40. Rxg1 Bxg6 41. Bxg6+ Kh8 42. Bd3 Nh7 43. Qxh6 Qf7 44. f4 Rc2 45. Rg6 Rc1+ 46. Kh2 Rc2+ 47. Rg2 Rc1 48. Qg6 Qxg6 49. Bxg6 1-0

[Event "Bamberg op-A 5th"]
[Site "Bamberg"]
[Date "2023.07.27"]
[Round "2"]
[White "Derichs, Roger"]
[Black "Wichmann, Adrian"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2286"]
[BlackElo "2066"]
[PlyCount "64"]
[EventDate "2023.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h3 0-0 6. cxd5 Nxd5 7. e4 Nxc3 8. bxc3 c5 9. Be2 b6 10. 0-0 cxd4 11. cxd4 Bb7 12. e5 Nc6 13. Rb1 Rc8 14. Bf4 Na5 15. Qd3 Qd5 16. Qa3 Qe4 17. Be3 e6 18. Bd3 Qd5 19. Rfc1 Rfe8 20. Rxc8 Rxc8 21. Rc1 Rxc1+ 22. Qxc1 Qc6 23. Qf1 Qa4 24. Qe2 Bd5 25. Bb1 Nc6 26. Qd2 Bf8 27. Ng5 Qb4 28. Qd1 Ne7 29. Ne4 Bxe4 30. Bxe4 Qc4 31. Qd2 Nd5 32. Bxd5 Qxd5 1/2-1/2

[Event "Bamberg op-A 5th"]
[Site "Bamberg"]
[Date "2023.07.27"]
[Round "3"]
[White "Lechermann, Markus"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2099"]
[BlackElo "2286"]
[PlyCount "98"]
[EventDate "2023.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 c5 5. c3 Nc6 6. Ngf3 Be7 7. Bd3 Nh5 8. Bg3 g6 9. Ne5 Qb6 10. Rb1 0-0 11. Qf3 Nxe5 12. Bxe5 f6 13. Bg3 Bd7 14. Bh4 Bc6 15. Qh3 Ng7 16. f4 Bb5 17. Bc2 a5 18. Nf3 Bd6 19. Bxf6 Rxf6 20. Ng5 h5 21. g4 Be8 22. Rg1 cxd4 23. gxh5 d3 24. Bxd3 Nxh5 25. Kd2 Bf8 26. Nf3 Bg7 27. Qh4 Qd8 28. Ne5 Rf8 29. Qh3 Rf5 30. Nxg6 Nf6 31. Bxf5 exf5 32. Ne5 Ne4+ 33. Kc2 Ba4+ 34. b3 Qc7 35. Rxg7+ Qxg7 36. bxa4 Rc8 37. Rb6 Rxc3+ 38. Kb2 Rc6 39. Rxc6 bxc6 40. Qxf5 Nc5 41. Qg5 Nd3+ 42. Kc3 Qxg5 43. fxg5 Nxe5 44. Kd4 Nd7 45. e4 dxe4 46. Kxe4 Kf7 47. Kf5 c5 48. h4 c4 49. Ke4 Kg6 1/2-1/2

[Event "Bamberg op-A 5th"]
[Site "Bamberg"]
[Date "2023.07.26"]
[Round "1"]
[White "Miller, Konstantin"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "1756"]
[BlackElo "2286"]
[PlyCount "34"]
[EventDate "2023.07.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. Qg4 g6 8. h4 h6 9. Bd3 c4 10. Be2 Qa5 11. Rh3 Bd7 12. h5 g5 13. f4 f5 14. exf6 Nxf6 15. Qg3 g4 16. Rh4 Nxd4 17. Bd1 Nf5 0-1

[Event "Prague op"]
[Site "Prague"]
[Date "2023.06.26"]
[Round "5"]
[White "Sokolovsky, Yahli"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2464"]
[BlackElo "2286"]
[PlyCount "47"]
[EventDate "2023.06.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Ne7 5. Na3 Nbc6 6. Nf3 cxd4 7. cxd4 Nf5 8. Nc2 Bd7 9. Bd3 Qb6 10. 0-0 a5 11. Kh1 h6 12. Rb1 Nb4 13. Nxb4 axb4 14. Bd2 Bb5 15. Bxb5+ Qxb5 16. a3 Qd3 17. axb4 Nxd4 18. Nxd4 Qxd4 19. Ra1 Rxa1 20. Qxa1 Qxe5 21. Qa8+ Kd7 22. f4 Qe2 23. Qxb7+ Ke8 24. Ra1 1-0

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "5"]
[White "Butolo, Alexandru Mircea"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2033"]
[BlackElo "2286"]
[PlyCount "96"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. 0-0 Nf6 5. d3 0-0 6. Nbd2 c5 7. e4 Nc6 8. Re1 b6 9. c3 Bb7 10. Qc2 Re8 11. h4 e6 12. Nf1 h5 13. Bg5 Qc7 14. e5 Ng4 15. d4 Rac8 16. Rac1 Ne7 17. Qd2 Nf5 18. N1h2 Nxh2 19. Nxh2 Kh7 20. Nf1 Ba6 21. Ne3 Nxe3 22. Qxe3 cxd4 23. cxd4 Qd7 24. Bf1 Bxf1 25. Rxf1 Rxc1 26. Rxc1 Rc8 27. Rxc8 Qxc8 28. Qc3 Qxc3 29. bxc3 Kg8 30. Kf1 Kf8 31. Ke2 Ke8 32. Kd3 Kd7 33. Bc1 Bf8 34. c4 Kc6 35. Bd2 dxc4+ 36. Kxc4 b5+ 37. Kd3 Kd5 38. Ba5 Ba3 39. Bd8 Bb2 40. Ke3 Bxd4+ 41. Kf4 Bxe5+ 42. Kg5 Kd6 43. Bf6 a5 44. f4 Bxf6+ 45. Kxf6 b4 46. Kxf7 a4 47. Kxg6 b3 48. Kxh5 bxa2 0-1

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "4"]
[White "Derichs, Roger"]
[Black "Amitpal, Singh"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2286"]
[BlackElo "2144"]
[PlyCount "71"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be3 Ng4 7. Bg5 Qe8 8. Be2 h6 9. Bh4 f5 10. exf5 gxf5 11. 0-0 c6 12. h3 Nf6 13. d5 c5 14. Bd3 Qh5 15. Qc2 Na6 16. a3 Ne4 17. Bxe7 Rf7 18. Bh4 Bd7 19. Rae1 Ng5 20. Bxg5 hxg5 21. Nh2 Be5 22. Ne2 g4 23. Ng3 Qg5 24. hxg4 fxg4 25. Qc1 Bf4 26. Qc3 Be5 27. Rxe5 Qxe5 28. Qxe5 dxe5 29. Re1 Re8 30. Ne4 Ree7 31. Nf1 Bf5 32. Nfg3 Bh7 33. Rd1 Rd7 34. Ng5 Rf4 35. Nxh7 Rd4 36. Nf6+ 1-0

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "9"]
[White "Derichs, Roger"]
[Black "Begunov, Konstantin"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2286"]
[BlackElo "2325"]
[PlyCount "76"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nf6 5. e3 Nc6 6. Nc3 a6 7. Bd3 Bg4 8. Nge2 e6 9. Rc1 Bd6 10. Bg5 0-0 11. 0-0 Rc8 12. Na4 Bh5 13. f3 Bg6 14. Nc5 Bxc5 15. Rxc5 Qb6 16. Bxf6 gxf6 17. b3 Nb4 18. Bxg6 hxg6 19. a3 Nc6 20. b4 Ne7 21. Qc2 Kg7 22. Rc1 Rc6 23. Nf4 Rfc8 24. h4 Nf5 25. Qf2 Rxc5 26. dxc5 Qc7 27. g4 Ne7 28. g5 fxg5 29. hxg5 Qe5 30. Nh3 Rh8 31. f4 Qe4 32. Kh2 Nf5 33. Re1 Qd3 34. Qb2+ Kg8 35. Qe2 Qxa3 36. Rh1 Qxb4 37. Kg2 Qe4+ 38. Kg1 Qxh1+ 0-1

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "11"]
[White "Derichs, Roger"]
[Black "Koridze, Lile"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2286"]
[BlackElo "2191"]
[PlyCount "62"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Bb4+ 5. Bd2 Be7 6. Bg2 0-0 7. 0-0 c6 8. Qc2 b6 9. Rc1 Bb7 10. b3 Nbd7 11. a4 c5 12. a5 cxd4 13. Nxd4 bxa5 14. Bxa5 Qb8 15. Nb5 Rc8 16. Nd2 dxc4 17. bxc4 Bxg2 18. Kxg2 Qe5 19. Nf3 Qh5 20. h3 Nc5 21. Bb4 Bf8 22. Rxa7 Rab8 23. Nbd4 Rxb4 24. g4 Qg6 25. Qd2 Nce4 26. Qf4 h6 27. Ne5 Qg5 28. Qxg5 Nxg5 29. h4 Nge4 30. Nxf7 Bc5 31. Nxe6 Bxa7 0-1

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "1"]
[White "Derichs, Roger"]
[Black "Manukyan, Sargis A"]
[Result "0-1"]
[ECO "E06"]
[WhiteElo "2286"]
[BlackElo "2158"]
[PlyCount "58"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. Nc3 dxc4 7. Ne5 Nc6 8. Bxc6 bxc6 9. Nxc6 Qe8 10. Nxe7+ Qxe7 11. Qa4 c5 12. dxc5 Qxc5 13. Be3 Qc7 14. f3 Bd7 15. Qc2 e5 16. 0-0 Bh3 17. Rf2 h6 18. Rd1 Rfd8 19. g4 Rxd1+ 20. Qxd1 e4 21. Qc2 exf3 22. exf3 Re8 23. Qd2 Rd8 24. Qc1 h5 25. Bf4 Qc6 26. g5 Nd5 27. Bd2 Nxc3 28. Bxc3 Qd5 29. Qd2 Qxg5+ 0-1

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "7"]
[White "Derichs, Roger"]
[Black "Sonnenschein, Philipp"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2286"]
[BlackElo "2224"]
[PlyCount "103"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be3 Ng4 7. Bg5 h6 8. Bh4 g5 9. Bg3 c5 10. d5 e6 11. h4 exd5 12. cxd5 f5 13. exf5 Bxf5 14. Bd3 Qe7+ 15. Kf1 Nd7 16. hxg5 hxg5 17. Qd2 Bxd3+ 18. Qxd3 Nh6 19. Re1 Ne5 20. Nxe5 dxe5 21. d6 Qe6 22. Qd5 Qxd5 23. Nxd5 Rfe8 24. Nc7 Nf7 25. Nxa8 Rxa8 26. Rd1 Rd8 27. d7 Kf8 28. Ke2 Ke7 29. Rh7 Bf6 30. f3 Ke6 31. Bf2 b6 32. g4 Nd6 33. Rh6 Rxd7 34. Be3 Kf7 35. Rh7+ Ke6 36. Rxd7 Kxd7 37. Rh1 Ke6 38. Rh7 a5 39. a4 Nc4 40. b3 Nd6 41. Kd3 Bd8 42. Rg7 Bf6 43. Rg6 Kf7 44. Rh6 Kg7 45. Rh1 Kf7 46. Bf2 Ke6 47. Bg3 Kd5 48. Rh7 c4+ 49. bxc4+ Nxc4 50. Rd7+ Kc6 51. Rf7 e4+ 52. Kxc4 1-0

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "2"]
[White "Elgersma, Onno"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2276"]
[BlackElo "2286"]
[PlyCount "59"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bf5 3. Bb2 c6 4. g3 Nf6 5. Bg2 h6 6. 0-0 e6 7. d3 Be7 8. Nbd2 0-0 9. a3 a5 10. Ne1 Na6 11. Nef3 b5 12. Qe1 Bh7 13. e4 c5 14. Ne5 Qc7 15. f4 Rad8 16. g4 Nd7 17. Nxd7 Rxd7 18. f5 dxe4 19. Nxe4 exf5 20. gxf5 f6 21. Kh1 c4 22. Rg1 Kh8 23. bxc4 bxc4 24. Ng3 cxd3 25. cxd3 Nc5 26. Rc1 Qd8 27. Nh5 Bxf5 28. Nxg7 Nxd3 29. Qh4 Kh7 30. Nxf5 1-0

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "8"]
[White "Hambleton, Aman"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2420"]
[BlackElo "2286"]
[PlyCount "69"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 e6 3. e3 Nf6 4. Nd2 c5 5. c3 Nc6 6. Ngf3 Be7 7. Bd3 Nh5 8. Be5 f6 9. Bg3 Qb6 10. Qc2 Nxg3 11. hxg3 f5 12. g4 g6 13. gxf5 exf5 14. dxc5 Qxc5 15. g4 0-0 16. gxf5 Bxf5 17. Bxf5 Rxf5 18. 0-0-0 Raf8 19. Rh3 b5 20. Rdh1 R8f7 21. Kb1 b4 22. c4 d4 23. Nb3 Qd6 24. c5 Qf6 25. Nfxd4 Rxf2 26. Qc4 Ne5 27. Qd5 Rf1+ 28. Nc1 Rxh1 29. Rxh1 Ng4 30. Re1 Qf2 31. Re2 Qf1 32. c6 Bf6 33. Qc4 Ne5 34. Qxb4 Kg7 35. Qb8 1-0

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "6"]
[White "Khoder, Akram"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2179"]
[BlackElo "2286"]
[PlyCount "122"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. g3 dxc4 5. Bg2 b5 6. 0-0 Bb7 7. a4 Nf6 8. Ne5 a6 9. Nc3 Be7 10. e4 0-0 11. Be3 Nbd7 12. Qc2 Nxe5 13. dxe5 Nd7 14. Rad1 Qc7 15. f4 Bc5 16. Qf2 Bxe3 17. Qxe3 Rad8 18. Kh1 Qb6 19. Qe2 Qc7 20. Qe3 b4 21. Ne2 a5 22. g4 Nb6 23. Ra1 c5 24. Ng3 Rd3 25. Qe1 Rfd8 26. Nh5 c3 27. bxc3 Rxc3 28. g5 Kh8 29. Qh4 Qe7 30. Rg1 Re3 31. Rae1 Rxe1 32. Rxe1 Rd4 33. Bf3 Nc4 34. Re2 Nd2 35. Bg2 Nxe4 36. h3 Bd5 37. Kh2 Rd2 38. Qe1 Rxe2 39. Qxe2 Qb7 40. Bf1 b3 41. Qb2 c4 42. Ng3 c3 43. Qb1 c2 44. Qb2 Qc6 45. Nxe4 c1Q 46. Qxc1 Qxc1 47. Bg2 b2 48. g6 Bxe4 49. gxf7 Qc8 50. Bxe4 Qf8 51. Bb1 Qxf7 52. Kg3 Qe7 53. Kg4 Qb4 54. h4 Qe1 55. Be4 Qxe4 56. h5 Qf5+ 57. Kf3 Qxh5+ 58. Ke3 Qd1 59. Ke4 b1Q+ 60. Ke3 Qe1+ 61. Kf3 Qbd1+ 0-1

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "3"]
[White "Kvaloy, Aksel Bu"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C15"]
[WhiteElo "2266"]
[BlackElo "2286"]
[PlyCount "47"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 dxe4 5. Qg4 Qxd4 6. Nf3 Qf6 7. Nd5 Bxd2+ 8. Nxd2 exd5 9. Qxc8+ Qd8 10. Qxb7 Nd7 11. Qxd5 Ngf6 12. Qd4 0-0 13. 0-0-0 c5 14. Qe3 Qa5 15. Kb1 Rab8 16. Bc4 Nb6 17. Bb3 Qb5 18. c4 Qc6 19. Rhe1 Rfe8 20. Bc2 h6 21. Nxe4 Nxe4 22. Bxe4 Nxc4 23. Bxc6 Nxe3 24. fxe3 1-0

[Event "Titled Tuesday intern op 25th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.25"]
[Round "10"]
[White "Turzo, Attila"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2279"]
[BlackElo "2286"]
[PlyCount "71"]
[EventDate "2023.04.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 g6 6. Ne2 Bg7 7. 0-0 Nbd7 8. c4 0-0 9. Nbc3 e5 10. Be3 Re8 11. g3 c6 12. h3 exd4 13. Bxd4 Nb6 14. b3 Bxh3 15. Bg2 Bxg2 16. Kxg2 Nbd7 17. Qc2 Ng4 18. Bxg7 Kxg7 19. Rad1 Qc7 20. Ne4 Ndf6 21. Nd6 Re7 22. Nf4 c5 23. Nb5 Qc6+ 24. Kg1 Ne4 25. Nd5 Ng5 26. Qc3+ f6 27. f4 Re3 28. Qb2 Rxg3+ 29. Kh1 Rf8 30. fxg5 Ne3 31. gxf6+ Kf7 32. Qf2 Nxf1 33. Rxf1 Rg5 34. Qf4 Rh5+ 35. Kg2 Rd8 36. Re1 1-0

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "10"]
[White "Aalto, Patrik"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2251"]
[BlackElo "2286"]
[PlyCount "204"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. b3 d5 3. Bb2 a6 4. exd5 exd5 5. Nf3 Nf6 6. Be2 Be7 7. 0-0 0-0 8. d4 Bg4 9. h3 Bh5 10. Nbd2 Nbd7 11. Re1 Re8 12. a4 Bb4 13. c3 Bd6 14. Ba3 Bxa3 15. Rxa3 a5 16. Ra1 c6 17. Qc2 Qc7 18. Bd3 Bxf3 19. Nxf3 g6 20. Qd2 Kg7 21. Re3 Rxe3 22. Qxe3 Re8 23. Qd2 Qd6 24. Re1 Rxe1+ 25. Qxe1 Qa3 26. Qb1 h6 27. Nd2 Qd6 28. Qe1 Nf8 29. Nf3 N6d7 30. Qe2 Qe6 31. Kf1 Qxe2+ 32. Kxe2 Kf6 33. Ke3 Ke6 34. Nd2 f5 35. h4 Kf6 36. Nf3 Ne6 37. g3 g5 38. hxg5+ hxg5 39. Nd2 g4 40. f3 gxf3 41. Nxf3 Ng5 42. Nxg5 Kxg5 43. c4 Nf6 44. cxd5 Nxd5+ 45. Kf3 Nf6 46. Bc2 Ng4 47. Bd3 Nh6 48. Bc2 Nf7 49. Bd3 Nd8 50. Bc2 Ne6 51. Ke3 Kg4 52. Bd3 Nc7 53. Kf2 Nd5 54. Be2+ Kg5 55. Kf3 Nc3 56. Bd3 Nd5 57. Be2 Nf6 58. Bd3 Nh5 59. Bc4 Nf6 60. Be6 Ne8 61. d5 c5 62. Bc8 Nd6 63. Bd7 b6 64. Be6 Ne8 65. Bd7 Nd6 66. Be6 Ne4 67. Bc8 Kf6 68. Kf4 Nd6 69. Be6 c4 70. bxc4 Nxc4 71. g4 fxg4 72. Bxg4 Ke7 73. Ke4 Kd6 74. Kd4 Nb2 75. Be6 Nxa4 76. Kc4 Kc7 77. Kb5 Nc3+ 78. Kc4 Ne4 79. Kb5 Nd6+ 80. Ka4 Kd8 81. Bg8 Ke7 82. Be6 Kf6 83. Bg8 Ke5 84. Be6 Kd4 85. Bg8 Kc5 86. Be6 Nc4 87. Kb3 Ne3 88. d6 Kxd6 89. Bg8 Kc5 90. Kc3 Nd5+ 91. Kb3 b5 92. Bf7 a4+ 93. Ka3 Nb6 94. Bg8 Nc4+ 95. Ka2 b4 96. Bf7 b3+ 97. Kb1 Kb4 98. Bg6 Kc3 99. Bh7 a3 100. Ka1 Kb4 101. Bg6 a2 102. Bf7 Ka3 0-1

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "5"]
[White "Derichs, Roger"]
[Black "Grot, Blazej"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2286"]
[BlackElo "1990"]
[PlyCount "84"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h3 0-0 6. cxd5 Nxd5 7. e4 Nxc3 8. bxc3 c5 9. Be2 b6 10. 0-0 cxd4 11. cxd4 Bb7 12. Qd3 Ba6 13. Qe3 Bxe2 14. Qxe2 Bxd4 15. Rd1 Bxa1 16. Rxd8 Rxd8 17. Bg5 Nc6 18. e5 Rd5 19. e6 f6 20. Be3 Ne5 21. Nxe5 Bxe5 22. g3 Rad8 23. Qa6 Bd6 24. Qxa7 Ra5 25. Qxb6 Rda8 26. h4 Kg7 27. Kg2 Rxa2 28. h5 gxh5 29. Qb5 R2a5 30. Qe2 Re5 31. Qf3 Ra3 32. Kg1 Bc5 33. Qb7 Ra7 34. Qb8 Bxe3 35. fxe3 Ra1+ 36. Kf2 Ra6 37. Kg2 Raxe6 38. Kh3 Rxe3 39. Qc8 R6e5 40. Qe8 Rg5 41. Kh4 Rgxg3 42. Kxh5 Re4 0-1

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "8"]
[White "Derichs, Roger"]
[Black "Necula, Iulian"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2286"]
[BlackElo "1851"]
[PlyCount "78"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. d5 f5 4. e4 Nf6 5. Nc3 f4 6. g3 Bg4 7. f3 Bh5 8. g4 Bg6 9. h4 Be7 10. Qc2 0-0 11. Bd2 c6 12. 0-0-0 cxd5 13. cxd5 Nbd7 14. Nh3 Rc8 15. Kb1 a6 16. Ng5 Bf7 17. Ne6 Bxe6 18. dxe6 Nc5 19. Bc4 b5 20. Bb3 b4 21. Nd5 Nxb3 22. Qxb3 Nxd5 23. exd5 a5 24. Rc1 Rxc1+ 25. Bxc1 Bxh4 26. Qd3 g6 27. Bd2 Bg5 28. Rc1 Kg7 29. b3 h5 30. gxh5 gxh5 31. Rh1 Kh6 32. Be1 Qb6 33. Qe2 Qe3 34. Qh2 Qxf3 35. Bh4 Qe4+ 36. Ka1 Qd4+ 37. Kb1 Qe4+ 38. Ka1 Qd4+ 39. Kb1 Qe4+ 1/2-1/2

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "2"]
[White "Derichs, Roger"]
[Black "Postnikov, Daniil"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2286"]
[BlackElo "2360"]
[PlyCount "104"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 f5 2. Bf4 Nf6 3. e3 d6 4. Bd3 g6 5. h4 Bg7 6. h5 Nd5 7. hxg6 Nxf4 8. exf4 hxg6 9. Rxh8+ Bxh8 10. Nf3 Nc6 11. c3 e5 12. fxe5 dxe5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Qe2 Qe7 16. Nd2 Bf6 17. Qxe7+ Kxe7 18. 0-0-0 Bd7 19. Rh1 Rd8 20. Kc2 Kf7 21. f4 Kg7 22. Nf3 Bc6 23. Rh2 Re8 24. Kd2 a5 25. Ng5 Bxg5 26. fxg5 Be4 27. Be2 a4 28. g3 a3 29. b3 c6 30. c4 Bb1 31. Kc3 Re3+ 32. Kb4 Rxg3 33. Kxa3 Rxg5 34. Kb4 f4 35. a4 Re5 36. Kc3 Re3+ 37. Kb2 Bf5 38. b4 f3 39. Bf1 g5 40. b5 c5 41. a5 g4 42. Rh5 Kg6 43. Rh8 Re7 44. Rg8+ Kf7 45. Rg5 Kf6 46. Rg8 Ke5 47. Kc3 Kf4 48. Kd2 g3 49. a6 bxa6 50. bxa6 Ra7 51. Bd3 Bxd3 52. Kxd3 Rxa6 0-1

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "7"]
[White "Derichs, Roger"]
[Black "Winkels, Marcel"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2286"]
[BlackElo "1962"]
[PlyCount "65"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nd5 Nxd5 10. cxd5 c6 11. Bc4 cxd5 12. Bxd5 Nc6 13. 0-0 Nb4 14. Bb3 Bg4 15. Rac1 Rac8 16. Ng5 Rxc1 17. Rxc1 Nc6 18. Nxf7 Re8 19. Nd6+ Kf8 20. Nxe8 Kxe8 21. Bd5 Bd7 22. f3 a6 23. Bxc6 Bxc6 24. a3 Kd7 25. Kf2 a5 26. g4 a4 27. h4 Bf6 28. Rh1 h5 29. gxh5 gxh5 30. Bg5 Bg7 31. Rd1+ Kc7 32. Rd8 Bd7 33. Rg8 1-0

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "11"]
[White "Derichs, Roger"]
[Black "Wisniacki, Flavio"]
[Result "0-1"]
[ECO "E06"]
[WhiteElo "2286"]
[BlackElo "2205"]
[PlyCount "94"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 c6 6. 0-0 0-0 7. Qc2 b6 8. Nbd2 Bb7 9. e4 Na6 10. a3 Rc8 11. e5 Nd7 12. b4 c5 13. dxc5 bxc5 14. b5 Nc7 15. a4 dxc4 16. Nxc4 Nd5 17. Rd1 N7b6 18. Bb2 Qc7 19. h4 Rfd8 20. Rac1 Nb4 21. Qb3 Bd5 22. Nfd2 Qb7 23. Bxd5 exd5 24. Na5 Qd7 25. Ba3 c4 26. Qf3 Nd3 27. Bxe7 Qxe7 28. Nc6 Rxc6 29. bxc6 Nxc1 30. Rxc1 Qc5 31. a5 Na4 32. Qg4 Qxc6 33. Nf3 Qe6 34. Qd4 Re8 35. Qxa7 Nb2 36. Ra1 Qf5 37. Qe3 Nd3 38. a6 Ra8 39. a7 c3 40. Qb6 Qc8 41. Nd4 h6 42. e6 fxe6 43. Nxe6 c2 44. Kg2 c1Q 45. Rxc1 Nxc1 46. Qd6 Nd3 47. Qxd5 Kh8 0-1

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "1"]
[White "Dimitrov, Atanas Valtchev"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2269"]
[BlackElo "2286"]
[PlyCount "99"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 e6 3. c4 Nf6 4. Nc3 Be7 5. b3 b6 6. Bb2 Bb7 7. Be2 0-0 8. 0-0 c5 9. cxd5 Nxd5 10. d4 Nxc3 11. Bxc3 Nc6 12. Rc1 cxd4 13. Nxd4 Nxd4 14. Bxd4 Rc8 15. Rxc8 Qxc8 16. Qa1 f6 17. Rc1 Qd7 18. Rd1 Qc8 19. h3 Rd8 20. Bc4 Bd5 21. Bf1 e5 22. Rc1 Qb7 23. Bc3 Rc8 24. Rd1 Be6 25. Qb2 Qc7 26. Rc1 Qd7 27. a4 Qd6 28. Bd2 Rxc1 29. Bxc1 Qc6 30. Bd2 Bd5 31. Qb1 h6 32. Bb5 Qe6 33. b4 Qd6 34. Be1 Be6 35. Qc2 Kf7 36. Bd3 Qd7 37. a5 Qc8 38. Qb1 Qd7 39. a6 f5 40. Bc3 e4 41. Bf1 Bf6 42. Bxf6 Kxf6 43. Qb2+ Kf7 44. b5 Qd5 45. Qc3 Qd7 46. g3 Qe7 47. h4 Qd7 48. Qe5 Qd5 49. Qb8 Qd7 50. Qb7 1-0

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "9"]
[White "Mihajlovskij, Sergei"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2326"]
[BlackElo "2286"]
[PlyCount "40"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Ne7 5. dxc5 Nd7 6. b4 Nxe5 7. Nf3 Nxf3+ 8. Qxf3 Ng6 9. Be3 Be7 10. Nd2 0-0 11. g3 Bd7 12. Bg2 a5 13. Qe2 Qe8 14. a4 axb4 15. cxb4 Rxa4 16. Rxa4 Bxa4 17. h4 Bb5 18. Qg4 Ne5 19. Qd4 Nd3+ 20. Kf1 Bf6 0-1

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "6"]
[White "Osuna Vega, Enrique"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C15"]
[WhiteElo "2061"]
[BlackElo "2286"]
[PlyCount "73"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 Nc6 5. e5 Nge7 6. a3 Ba5 7. b4 Bb6 8. Na4 0-0 9. c3 Bd7 10. Nxb6 axb6 11. Ng3 f6 12. exf6 Rxf6 13. Bd3 e5 14. dxe5 Nxe5 15. Be2 h6 16. 0-0 Ba4 17. Qd4 N7c6 18. Qh4 Rf8 19. Qh3 Qc8 20. Qh4 Qe6 21. f4 Ng6 22. Qh5 Qf7 23. Bd3 Nge7 24. Qh3 Bb3 25. f5 Ne5 26. Bb1 Bc4 27. Rf2 Nd3 28. Bxd3 Bxd3 29. f6 Ng6 30. Be3 Kh7 31. Nh5 Ne5 32. fxg7 Qxf2+ 33. Bxf2 Rf7 34. Bd4 Re8 35. Bxe5 Rxe5 36. Qxd3+ Kg8 37. Rf1 1-0

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "4"]
[White "Principe, Alexander"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C17"]
[WhiteElo "2295"]
[BlackElo "2286"]
[PlyCount "91"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. f4 cxd4 7. Nb5 Bxd2+ 8. Qxd2 0-0 9. Nf3 Nbc6 10. Nbxd4 Bd7 11. c3 Qb6 12. Bd3 Nxd4 13. Nxd4 Nc6 14. Nxc6 bxc6 15. Qf2 Qxf2+ 16. Kxf2 a5 17. Ke3 Rfb8 18. Rab1 Kf8 19. Kd4 Ke7 20. a4 h6 21. g4 f6 22. Rhf1 Rf8 23. b3 Ra7 24. Kc5 Rb8 25. Bc2 Rh8 26. Bg6 Rb8 27. h4 Ra6 28. Bc2 Rf8 29. Rbe1 Rb8 30. Rg1 Rh8 31. Re3 Rf8 32. g5 fxe5 33. gxh6 gxh6 34. Rg7+ Rf7 35. Rxf7+ Kxf7 36. fxe5 Ke7 37. Rg3 Be8 38. Rg7+ Kf8 39. Rb7 Ra8 40. Rh7 Kg8 41. Rxh6 Bf7 42. Rf6 Kg7 43. h5 Bg8 44. h6+ Kh8 45. h7 Bxh7 46. Rh6 1-0

[Event "Titled Tuesday intern op 18th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.18"]
[Round "3"]
[White "Vargas, Mauricio"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2056"]
[BlackElo "2286"]
[PlyCount "94"]
[EventDate "2023.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. f4 d5 3. e5 c5 4. Nf3 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. 0-0 Ne7 8. d3 Nf5 9. Qe1 h5 10. c3 d4 11. c4 Be7 12. Na3 a6 13. Nc2 Qc7 14. Nd2 b5 15. b3 Qb7 16. Ne4 h4 17. h3 0-0 18. Bd2 Rab8 19. Qe2 bxc4 20. dxc4 Bxe4 21. Ne1 Ng3 22. Qg4 Nxf1 23. Kxf1 d3 24. f5 Bxf5 25. Qf4 Qe4 26. Nf3 Qxf4 27. Bxf4 a5 28. Rd1 a4 29. bxa4 Rb4 30. Bg5 Bxg5 31. Nxg5 Rxa4 32. Rd2 Rfa8 33. Nf3 Rxa2 34. Rxa2 Rxa2 35. Nxh4 Be4 36. Nf3 Bxf3 37. gxf3 Re2 38. f4 f6 39. exf6 gxf6 40. h4 f5 41. h5 Re4 42. Kf2 d2 43. h6 d1Q 44. h7+ Kxh7 45. Kg3 Qg4+ 46. Kf2 Re2+ 47. Kf1 Qg2# 0-1

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "4"]
[White "Berezin, Viktor1111"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2307"]
[BlackElo "2286"]
[PlyCount "113"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. Qc2 Nf6 5. Nbd2 Nbd7 6. e4 dxe4 7. Nxe4 Nxe4 8. Qxe4 Bb4+ 9. Bd2 Bxd2+ 10. Nxd2 Nf6 11. Qh4 h6 12. Nb3 a5 13. Rd1 a4 14. Na1 Qb6 15. Rd2 0-0 16. Bd3 Qa5 17. Qf4 Rd8 18. 0-0 Qg5 19. Qxg5 hxg5 20. Nc2 b6 21. Rfd1 Kf8 22. c5 bxc5 23. dxc5 Rb8 24. Ne3 Bd7 25. Nc4 Be8 26. Nd6 Ke7 27. Be2 Nd5 28. Rc1 Rb4 29. a3 Rbb8 30. Bd1 Ra8 31. Rc4 Ra5 32. Rdc2 Rda8 33. Rd2 f6 34. f3 e5 35. Kf2 Bf7 36. Nf5+ Kf8 37. Rc1 Be6 38. Nd6 Nf4 39. g3 Nd5 40. Be2 Ne7 41. Bc4 Bxc4 42. Rxc4 Nd5 43. Ne4 Kf7 44. Nd6+ Ke6 45. Nb7 R5a7 46. Nd6 Rb8 47. Ke2 Ra5 48. Kd3 Ra7 49. Kc2 Ra5 50. Ne4 Ra7 51. Kc1 Rab7 52. Nd6 Ra7 53. h4 gxh4 54. Rxh4 Rg8 55. g4 Ke7 56. Nf5+ Ke6 57. Rh7 1-0

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "7"]
[White "Deng, Henry"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C09"]
[WhiteElo "2158"]
[BlackElo "2286"]
[PlyCount "37"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. exd5 exd5 6. Bb5 cxd4 7. 0-0 Bd6 8. Re1+ Nge7 9. Nxd4 0-0 10. N2f3 Bc7 11. h3 Qd6 12. c3 Nf5 13. Bg5 f6 14. Nxf5 Bxf5 15. Bh4 Bb6 16. Kh1 Qc5 17. Ba4 Be4 18. Bb3 Bc7 19. Rxe4 1-0

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "2"]
[White "Derichs, Roger"]
[Black "Darini, Pouria"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2286"]
[BlackElo "2401"]
[PlyCount "78"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Bb4+ 5. Bd2 a5 6. Qc1 0-0 7. Bg2 c5 8. dxc5 d4 9. 0-0 Nc6 10. Bg5 Bxc5 11. Nbd2 Be7 12. Rd1 e5 13. a3 Bf5 14. Nh4 Bg4 15. Kf1 h6 16. Bxf6 Bxf6 17. Nhf3 Bf5 18. Ne1 Bg5 19. Nef3 Be7 20. Ne1 Qb6 21. Be4 Bh3+ 22. Bg2 Be6 23. Ne4 Rad8 24. c5 Qb5 25. Nd3 a4 26. Rd2 Na5 27. Rc2 Nb3 28. Qb1 f5 29. Nd6 Bxd6 30. cxd6 Rxd6 31. Rc7 Bd5 32. Bxd5+ Qxd5 33. Kg1 Rf7 34. Rc8+ Kh7 35. Qd1 Nxa1 36. Qxa1 b6 37. Qb1 Qe4 38. Qc1 Qxe2 39. Nb4 d3 0-1

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "8"]
[White "Derichs, Roger"]
[Black "Janaszak, Dawid"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "2286"]
[BlackElo "2316"]
[PlyCount "66"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 e6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. Nf3 exd5 10. Nxd5 Nbd7 11. Bg5 Be7 12. Bxf6 Nxf6 13. Qc2 0-0 14. g3 Nxd5 15. exd5 Bf6 16. Kg2 Qb8 17. Rhb1 Re8 18. Nd2 Re2 19. Qd3 Qe8 20. Nc4 Bd4 21. Rf1 Ra6 22. Kf3 Re7 23. a3 Qa8 24. Ne3 g6 25. Rab1 Ra4 26. Rfe1 Re5 27. Red1 f5 28. Kg2 Ra7 29. Kg1 Rae7 30. Re1 Re4 31. h4 f4 32. Nc2 Qxd5 33. Rxe4 Bxf2+ 0-1

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "6"]
[White "Derichs, Roger"]
[Black "Namitbir, Singh Walia"]
[Result "1-0"]
[ECO "A62"]
[WhiteElo "2286"]
[BlackElo "2364"]
[PlyCount "100"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 d6 5. Nf3 g6 6. g3 Bg7 7. Bg2 exd5 8. cxd5 0-0 9. 0-0 Re8 10. Bf4 Ne4 11. Nxe4 Rxe4 12. Nd2 Re8 13. Nc4 Bf8 14. a4 Bf5 15. Re1 Be4 16. f3 Bf5 17. e4 Bc8 18. e5 dxe5 19. Rxe5 Rxe5 20. Bxe5 Nd7 21. Bc3 Nb6 22. Nxb6 axb6 23. f4 Bd7 24. b3 Qe8 25. Qd2 Bf5 26. Re1 Qd7 27. Bb2 Bg7 28. Bxg7 Kxg7 29. Qc3+ Kg8 30. Qf6 Re8 31. Re5 b5 32. Rxe8+ Qxe8 33. Qe5 Qxe5 34. fxe5 bxa4 35. bxa4 b6 36. Kf2 Bd7 37. Ke3 Bxa4 38. Bh3 Kf8 39. Kf4 Ke7 40. Kg5 h5 41. d6+ Ke8 42. Kf6 Bb3 43. Bg2 Kd8 44. Be4 Be6 45. Bxg6 c4 46. Bxf7 Bxf7 47. Kxf7 c3 48. e6 c2 49. e7+ Kd7 50. e8Q+ Kxd6 1-0

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "10"]
[White "Derichs, Roger"]
[Black "Necula, Iulian"]
[Result "1-0"]
[ECO "A87"]
[WhiteElo "2286"]
[BlackElo "1851"]
[PlyCount "91"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d6 2. c4 f5 3. Nc3 Nf6 4. g3 g6 5. Bg2 Bg7 6. Nf3 0-0 7. 0-0 Qe8 8. Re1 e5 9. e4 f4 10. dxe5 dxe5 11. Nd5 Na6 12. gxf4 exf4 13. Bxf4 c6 14. Nxf6+ Bxf6 15. Bh6 Bg7 16. Bxg7 Kxg7 17. Qd4+ Kg8 18. c5 h6 19. b4 Bg4 20. Nd2 Rd8 21. Qc3 Qf7 22. f3 Be6 23. Bf1 Nc7 24. Re3 Nb5 25. Bxb5 cxb5 26. a3 Qf4 27. Nf1 Bc4 28. Rae1 h5 29. Ng3 h4 30. Ne2 Qg5+ 31. Kh1 Bxe2 32. R3xe2 Rf4 33. Rg1 Qh5 34. Reg2 Qxf3 35. Qxf3 Rxf3 36. Rxg6+ Kf7 37. Rd6 Re8 38. Re1 Rxa3 39. e5 Rb3 40. e6+ Ke7 41. Rd7+ Kf6 42. Rf7+ Kg6 43. Rg1+ Kh6 44. Rf6+ Kh7 45. Rf7+ Kh6 46. e7 1-0

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "1"]
[White "Derichs, Roger"]
[Black "Tregubov, Pavel V"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2286"]
[BlackElo "2553"]
[PlyCount "49"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 0-0 5. Bg2 d5 6. Ngf3 dxc4 7. 0-0 c5 8. Nxc4 cxd4 9. Qxd4 Nc6 10. Qxd8 Rxd8 11. a3 Be7 12. Nce5 Nxe5 13. Nxe5 Nd7 14. Nxd7 Bxd7 15. Bxb7 Rab8 16. Be4 Bf6 17. Rb1 Bb5 18. Bf3 Bc4 19. Be3 a5 20. b4 Ba2 21. Rbd1 axb4 22. Rxd8+ Bxd8 23. axb4 Rxb4 24. Ra1 Rb1+ 25. Rxb1 1/2-1/2

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "3"]
[White "Kaidanov, Gregory S"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "2559"]
[BlackElo "2286"]
[PlyCount "126"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 g6 3. c4 dxc4 4. Qa4+ Nc6 5. Qxc4 Bg7 6. Bg2 e5 7. 0-0 Nge7 8. d3 0-0 9. Qh4 Nf5 10. Qxd8 Rxd8 11. Nc3 Ncd4 12. Bg5 f6 13. Bd2 Nxf3+ 14. Bxf3 Nd4 15. Bg2 c6 16. Rfd1 Bg4 17. Kf1 Rac8 18. h3 Bd7 19. Ne4 b6 20. b4 Be8 21. e3 Ne6 22. Ke2 c5 23. bxc5 Nxc5 24. Nxc5 Rxc5 25. a4 Rdc8 26. Bb4 Rc2+ 27. Rd2 Bf8 28. Bd5+ Bf7 29. Bxf7+ Kxf7 30. Bxf8 Kxf8 31. Kd1 Rxd2+ 32. Kxd2 Ke7 33. a5 Rc7 34. axb6 axb6 35. Rb1 Rb7 36. Kc3 Kd6 37. Kb4 Kc6 38. Rc1+ Kd6 39. Kb5 Ra7 40. Kxb6 Ra2 41. Rc6+ Ke7 42. Rc7+ Ke6 43. f4 Ra3 44. Rxh7 Rxd3 45. Rg7 Rxe3 46. fxe5 fxe5 47. Rxg6+ Kf5 48. Rg8 Rc3 49. h4 e4 50. h5 Rc1 51. g4+ Kf4 52. g5 Rh1 53. h6 e3 54. g6 Rxh6 55. Rf8+ Kg5 56. Re8 Rxg6+ 57. Kc5 Kf4 58. Kd4 Rd6+ 59. Kc3 Kf3 60. Rf8+ Ke2 61. Rh8 Rc6+ 62. Kd4 Rd6+ 63. Ke5 Rd7 0-1

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "9"]
[White "Zampronha, Wladimir Camilo"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2176"]
[BlackElo "2286"]
[PlyCount "27"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. Qg4 g6 8. Nf3 Qa5 9. Bd2 c4 10. Qf4 h6 11. g3 Bd7 12. Bh3 Nge7 13. 0-0 0-0 14. Qxh6 1-0

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "9"]
[White "Aqib, Javaid Butt"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1759"]
[BlackElo "2286"]
[PlyCount "97"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Be2 Nc6 6. Nf3 Nge7 7. 0-0 Bg4 8. h3 Bh5 9. Ne5 Bxe2 10. Nxe2 0-0 11. c3 Bd6 12. Bf4 f6 13. Nxc6 Nxc6 14. Re1 Qd7 15. Qd3 Rae8 16. Bxd6 Qxd6 17. Ng3 Ne7 18. Rxe7 Qxe7 19. Nf5 Qe4 20. Qxe4 Rxe4 21. Kf1 Rfe8 22. Ne3 c6 23. a4 g6 24. g4 Kf7 25. b4 Rxe3 26. fxe3 Rxe3 27. b5 Rxh3 28. bxc6 bxc6 29. Rb1 Rxc3 30. Rb7+ Ke6 31. Rxa7 Rc4 32. a5 Rxd4 33. a6 Kd6 34. Ra8 Ra4 35. a7 Kc5 36. Kf2 Kd4 37. Ke2 c5 38. Kd2 c4 39. Kc2 f5 40. gxf5 gxf5 41. Kd2 f4 42. Kc2 f3 43. Kd2 c3+ 44. Kc2 f2 45. Rf8 Rxa7 46. Rf4+ Kc5 47. Rxf2 Ra2+ 48. Kxc3 Rxf2 49. Kd3 0-1

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "7"]
[White "De Souza, Cristiano Gomes"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2018"]
[BlackElo "2286"]
[PlyCount "135"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nc3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 a5 8. axb5 Bxc3 9. Bxc3 cxb5 10. d5 Nf6 11. b3 exd5 12. bxc4 dxc4 13. Qxd8+ Kxd8 14. Bxa5+ Ke8 15. Nd4 Bd7 16. Be2 Nc6 17. Nxc6 Bxc6 18. 0-0 Ke7 19. Bb4+ Ke6 20. f3 Rxa1 21. Rxa1 Ra8 22. Rxa8 Bxa8 23. e4 Nd7 24. Kf2 Nb8 25. Ke3 Nc6 26. Bc3 f6 27. f4 Bb7 28. Bg4+ Ke7 29. Bd1 b4 30. Bd4 Kd6 31. g4 Ba6 32. h4 c3 33. Ba4 Bb5 34. Bb3 Na5 35. e5+ fxe5 36. Bxe5+ Kc6 37. Bc2 Nc4+ 38. Kd4 Nxe5 39. fxe5 h6 40. g5 hxg5 41. hxg5 Be2 42. e6 Kd6 43. e7 Bb5 44. e8Q Bxe8 45. Kc4 Ke5 46. Kxb4 Kf4 47. Kxc3 Kxg5 48. Kd2 Kf4 49. Ke2 Kg3 50. Kf1 g5 51. Kg1 Bc6 52. Bf5 Bf3 53. Bc8 Kf4 54. Bd7 Be4 55. Bc8 Bf5 56. Bb7 g4 57. Ba8 g3 58. Bc6 Be4 59. Bd7 Ke3 60. Bh3 Bf3 61. Bd7 Kf4 62. Bc8 Ke3 63. Bd7 Kf4 64. Bc8 Ke3 65. Ba6 Kf4 66. Bf1 Ke3 67. Bh3 Kf4 68. Bc8 1/2-1/2

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "4"]
[White "Derichs, Roger"]
[Black "Ciuffoletti, Paolo"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2286"]
[BlackElo "2106"]
[PlyCount "66"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c3 c5 4. dxc5 e6 5. b4 a5 6. e3 Nc6 7. Bb5 Bd7 8. a3 axb4 9. Bxc6 Bxc6 10. cxb4 Ne4 11. Bb2 Be7 12. 0-0 0-0 13. Nbd2 f5 14. Ne5 Bb5 15. Re1 Bf6 16. f3 Ng5 17. Qc2 Nf7 18. Nxf7 Rxf7 19. f4 d4 20. exd4 Bxd4+ 21. Bxd4 Qxd4+ 22. Kh1 Qxf4 23. Nf3 Bc6 24. Ne5 Be4 25. Qe2 Qxe5 26. h3 Rd8 27. Rac1 Rfd7 28. Qe3 Rd2 29. Re2 Rxe2 30. Qxe2 Qg3 31. b5 Qxh3+ 32. Kg1 Qxa3 33. c6 Qxc1+ 0-1

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "8"]
[White "Derichs, Roger"]
[Black "Hartikainen, Jarmo"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2286"]
[BlackElo "2133"]
[PlyCount "93"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nb5 Na6 6. e3 0-0 7. h3 c6 8. Nc3 Nc7 9. Bd3 b5 10. 0-0 a5 11. a3 Bb7 12. Re1 Nd7 13. e4 c5 14. Nxb5 Nxb5 15. Bxb5 dxe4 16. Ne5 Nxe5 17. Bxe5 cxd4 18. Bxg7 Kxg7 19. Qd2 Qd5 20. a4 e3 21. fxe3 e5 22. exd4 exd4 23. Rad1 Rac8 24. c3 Rcd8 25. Qxd4+ Qxd4+ 26. Rxd4 Rxd4 27. cxd4 Rd8 28. Rd1 Bd5 29. Kf2 Kf6 30. Ke3 Ke6 31. Rc1 Kd6 32. g4 Rb8 33. Rf1 f5 34. gxf5 Rf8 35. f6 Be6 36. Bd3 Bxh3 37. Rh1 Bf5 38. Bxf5 gxf5 39. Rxh7 Rxf6 40. Ra7 Kd5 41. Rxa5+ Kc4 42. Rc5+ Kb4 43. a5 f4+ 44. Kf3 Kb3 45. Rb5+ Kc4 46. Rb6 Kxd4 47. Rxf6 1-0

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "10"]
[White "Derichs, Roger"]
[Black "Izuzquiza Gonzalez, Javier"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2286"]
[BlackElo "2020"]
[PlyCount "110"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nb5 Na6 6. e3 c6 7. Nc3 b5 8. h3 Nc7 9. Bd3 a5 10. 0-0 0-0 11. Re1 b4 12. Na4 Ba6 13. Nc5 Bxd3 14. Qxd3 Qc8 15. a3 Ne6 16. Nxe6 Qxe6 17. Be5 Ne4 18. Bxg7 Kxg7 19. Nd2 Nd6 20. e4 dxe4 21. Nxe4 Nxe4 22. Rxe4 Qd6 23. axb4 axb4 24. Rae1 e6 25. h4 h5 26. Re5 Ra2 27. b3 Rfa8 28. g4 hxg4 29. h5 Ra1 30. hxg6 Rxe1+ 31. Rxe1 fxg6 32. Qe4 Rd8 33. Qxg4 Qxd4 34. Qxd4+ Rxd4 35. Rxe6 c5 36. Rc6 Rd5 37. Kg2 Kh6 38. Kg3 Kg5 39. f3 Rf5 40. f4+ Kh5 41. Rc8 Kh6 42. Kg4 Rd5 43. Rc6 Kg7 44. Rc7+ Kh6 45. Kf3 Rf5 46. Ke4 Kh5 47. Rg7 Kh6 48. Rg8 Kh5 49. Kf3 Kh6 50. Kg4 Rd5 51. Rc8 Rf5 52. Rh8+ Kg7 53. Rc8 Kh6 54. Rc6 Kg7 55. Rc8 Kh6 1/2-1/2

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "6"]
[White "Derichs, Roger"]
[Black "Soumya, Swaminathan"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2286"]
[BlackElo "2326"]
[PlyCount "122"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. Nb5 Na6 6. e3 0-0 7. h3 c6 8. Nc3 Qb6 9. Rb1 c5 10. Be5 cxd4 11. exd4 Nc7 12. Bd3 Be6 13. 0-0 h6 14. Re1 Rac8 15. Na4 Qc6 16. Nc5 b6 17. Nxe6 Nxe6 18. c3 b5 19. Qe2 a6 20. Bxf6 Bxf6 21. Bxg6 Nf4 22. Bxf7+ Rxf7 23. Qd2 Bg7 24. Ne5 Bxe5 25. Rxe5 Qg6 26. f3 Qxb1+ 27. Kh2 Qg6 28. g3 Ne6 29. f4 Ng7 30. Qe2 e6 31. a4 Rc6 32. axb5 axb5 33. Qxb5 Qc2+ 34. Kh1 Qd1+ 35. Kh2 Qd2+ 36. Kh1 Qc1+ 37. Kh2 Rfc7 38. Qe2 Nf5 39. g4 Qxf4+ 40. Kg2 Qg3+ 41. Kh1 Qxh3+ 42. Kg1 Qg3+ 43. Kh1 Qh4+ 44. Kg2 Ng7 45. Re3 Rf7 46. Rh3 Qg5 47. Rf3 Rxf3 48. Qxf3 Rc8 49. Qe2 Rf8 50. b3 h5 51. Kg3 Qxg4+ 52. Qxg4 hxg4 53. Kxg4 Nf5 54. Kf4 Nd6+ 55. Ke5 Ne4 56. c4 dxc4 57. bxc4 Nc3 58. Kxe6 Rd8 59. d5 Nxd5 60. cxd5 Kf8 61. d6 Ke8 0-1

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "1"]
[White "Derichs, Roger"]
[Black "Vignesh, NR."]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2286"]
[BlackElo "2473"]
[PlyCount "92"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c3 c6 4. Qc2 g6 5. Bf4 Bg7 6. Nbd2 0-0 7. h3 Bf5 8. Qb3 Qb6 9. e3 Nbd7 10. g4 Be4 11. g5 Bxf3 12. Nxf3 Ne4 13. Qxb6 axb6 14. Nd2 e5 15. dxe5 Bxe5 16. Nxe4 Bxf4 17. exf4 Rfe8 18. Bg2 Nc5 19. 0-0 dxe4 20. Rfe1 Rad8 21. Re2 Nd3 22. Rxe4 Rxe4 23. Bxe4 Nxb2 24. Rb1 Na4 25. Bc2 Nxc3 26. Rxb6 Rd7 27. a4 Ne2+ 28. Kg2 Nxf4+ 29. Kg3 Ne2+ 30. Kg2 Nd4 31. Bb1 Kg7 32. h4 h6 33. Kg3 hxg5 34. hxg5 Ne6 35. f4 Nc5 36. a5 Rd4 37. a6 Nxa6 38. Rxb7 Rb4 39. Rxb4 Nxb4 40. Kf3 Kf8 41. Ke4 Ke7 42. Ke5 Nd5 43. f5 gxf5 44. Bxf5 Ne3 45. Be4 Nc4+ 46. Kd4 Na5 0-1

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "5"]
[White "Makhmudov, Shukhrat"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2115"]
[BlackElo "2286"]
[PlyCount "153"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4 d4 5. bxc5 Bxc5 6. Bb5+ Bd7 7. Qe2 Ne7 8. 0-0 0-0 9. Bd3 Ng6 10. Ba3 b6 11. Bxc5 bxc5 12. Na3 Bc6 13. Nc4 Nd7 14. Be4 Qc7 15. Bxc6 Qxc6 16. d3 Rab8 17. Rab1 Qd5 18. Rb3 Nf4 19. Qd2 Ng6 20. Qg5 h6 21. Qg3 Rxb3 22. axb3 Nb6 23. Nfd2 Nd7 24. f4 Kh7 25. Ne4 f6 26. Ra1 fxe5 27. fxe5 Ndxe5 28. Rxa7 Nxc4 29. bxc4 Qf5 30. h3 Qf4 31. Qxf4 Nxf4 32. Nxc5 h5 33. g3 Nxh3+ 34. Kg2 Ng5 35. Rd7 Rb8 36. Nb3 e5 37. Re7 Ra8 38. Rxe5 Kh6 39. Nxd4 Ra2 40. Re2 Nf7 41. c5 Ra7 42. Nf5+ Kg5 43. Nd6 Nh6 44. c6 Rc7 45. Re6 Ng4 46. Ne4+ Kf5 47. Rd6 Ke5 48. Rg6 Nf6 49. Rg5+ Kd4 50. Nxf6 gxf6 51. Rxh5 Rxc6 52. Rh4+ Ke3 53. Rc4 Ra6 54. Re4+ Kd2 55. d4 Kxc2 56. d5 Rd6 57. Re6 Rxd5 58. Rxf6 Kd3 59. Re6 Rf5 60. g4 Rf8 61. Kg3 Kd4 62. g5 Kd5 63. Re1 Kd6 64. Kg4 Rf2 65. Kh5 Rh2+ 66. Kg6 Kd7 67. Kf6 Rf2+ 68. Kg7 Kd8 69. g6 Kd7 70. Kg8 Kd8 71. g7 Kd7 72. Rh1 Ke7 73. Re1+ Kd7 74. Re4 Rf1 75. Rg4 Ke7 76. Kh7 Rh1+ 77. Kg6 1-0

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "2"]
[White "Tanenbaum, Zachary Chen"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2142"]
[BlackElo "2286"]
[PlyCount "59"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 Nge7 8. Nf3 Bf5 9. 0-0 Qd7 10. Rb1 b6 11. Re1 Bxd3 12. Qxd3 0-0 13. Ng5 Ng6 14. h4 Rfe8 15. Bd2 h6 16. h5 Nf8 17. Nf3 Rxe1+ 18. Rxe1 Re8 19. Rxe8 Qxe8 20. c4 Qd7 21. Qb3 dxc4 22. Qxc4 Na5 23. Bxa5 bxa5 24. Ne5 Qf5 25. Qxc7 Ne6 26. Qxa7 Nf4 27. Qa8+ Kh7 28. Qf3 Kg8 29. Nd3 Qxh5 30. Nxf4 1-0

[Event "Titled Tuesday intern op 20th Sep Early"]
[Site "Chess.com INT"]
[Date "2022.09.20"]
[Round "11"]
[White "Torres Bosch, Jose Francisco"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C16"]
[WhiteElo "2173"]
[BlackElo "2286"]
[PlyCount "110"]
[EventDate "2022.09.20"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 b6 7. Qg4 Ng6 8. h4 h5 9. Qd1 c5 10. Bb5+ Bd7 11. Bd3 c4 12. Bxg6 fxg6 13. Qf3 Qe7 14. a4 Qf7 15. Qg3 0-0 16. Ba3 Re8 17. Bd6 Nc6 18. Nh3 Qf5 19. Nf4 Kh7 20. 0-0 Qf7 21. Rfe1 Ne7 22. Bxe7 Rxe7 23. Re3 Qf5 24. Rf3 Qg4 25. Qxg4 hxg4 26. Rg3 Be8 27. Rxg4 Bf7 28. Nh3 Rb7 29. Rf4 Kg8 30. Ng5 a6 31. Rb1 Rab8 32. Kf1 b5 33. axb5 axb5 34. Ke2 Re7 35. Kd2 Be8 36. Rb4 Bd7 37. Rf3 Ra8 38. Re3 Ra1 39. Re1 Ra2 40. Reb1 Re8 41. f4 Rea8 42. Rxb5 Bxb5 43. Rxb5 R2a6 44. Rb7 R6a7 45. Rxa7 Rxa7 46. Nxe6 Ra1 47. Nc7 Rg1 48. Nxd5 Rxg2+ 49. Ke3 Kf7 50. Ke4 Rxc2 51. Nb6 Rxc3 52. Kd5 Rf3 53. Nxc4 Rxf4 54. Ne3 Rxh4 55. Kc5 Re4 0-1

[Event "Hessenliga 1921"]
[Site "Hessen"]
[Date "2021.09.05"]
[Round "9.1"]
[White "Derichs, Roger"]
[Black "Sadeghi, Behrang"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2311"]
[BlackElo "2253"]
[PlyCount "13"]
[EventDate "2019.09.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Bad Homburg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 e6 6. Nf3 Nc6 7. Qe4 1/2-1/2

[Event "Hessenliga 1921"]
[Site "Hessen"]
[Date "2020.03.08"]
[Round "7.1"]
[White "Derichs, Roger"]
[Black "Zimmermann, Hendrik"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2311"]
[BlackElo "2221"]
[PlyCount "128"]
[EventDate "2019.09.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Nied"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 f5 2. d3 d6 3. e4 e5 4. Nc3 c5 5. g3 Nf6 6. Bg2 Nc6 7. 0-0 Be7 8. Nd5 0-0 9. c3 Kh8 10. Re1 Rb8 11. a3 Be6 12. Nxe7 Nxe7 13. b4 b6 14. exf5 Bxf5 15. h3 Qd7 16. Kh2 Ng6 17. Be3 Rbe8 18. Ng5 h6 19. Ne4 Ne7 20. Qe2 Ned5 21. Bd2 Nc7 22. Rad1 Nh7 23. bxc5 dxc5 24. Bc1 Ne6 25. a4 Qc7 26. Be3 Nf4 27. Bxf4 exf4 28. Qd2 Bg6 29. a5 bxa5 30. c4 f3 31. Bf1 Bxe4 32. dxe4 Ng5 33. Qc2 Ne6 34. e5 Nd4 35. Qe4 Re6 36. Bd3 g6 37. Rb1 Rfe8 38. Rb7 Qxe5 39. Qh4 Qg5 40. Rxe6 Rxe6 41. Qxg5 hxg5 42. Rxa7 Nb3 43. g4 Nc1 44. Bb1 Nb3 45. Kg3 Nd2 46. Bd3 Rd6 47. Bc2 Nxc4 48. Kxf3 Rd2 49. Ba4 Rd3+ 50. Kg2 Ra3 51. Be8 Ne5 52. Rc7 Nd3 53. Kg1 Ra1+ 54. Kh2 Ra2 55. Bxg6 Nf4 56. Bf5 Rxf2+ 57. Kg3 Rb2 58. Kf3 Rh2 59. Rxc5 a4 60. Ra5 a3 61. Ke4 Re2+ 62. Kf3 Rh2 63. Ke4 Re2+ 64. Kf3 Rh2 1/2-1/2

[Event "Hessenliga 1921"]
[Site "Hessen"]
[Date "2020.01.26"]
[Round "5.1"]
[White "Derichs, Roger"]
[Black "Wendel, Stephan"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2311"]
[BlackElo "2271"]
[PlyCount "115"]
[EventDate "2019.09.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Frankfurt Bvk"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. 0-0 Be7 7. d4 e4 8. Ne5 Nxe5 9. dxe5 f5 10. exf6 Nxf6 11. Qb3 c6 12. Nc3 Qb6 13. Qc4 Qc5 14. Qxc5 Bxc5 15. Nxe4 Nxe4 16. Bxe4 Bg4 17. Bf4 0-0 18. e3 Rad8 19. Kg2 Rd2 20. Rac1 Bb6 21. Rc2 Rfd8 22. Rfc1 h6 23. Rxd2 Rxd2 24. Rc2 Rd8 25. Bg6 Bd1 26. Rc3 Be2 27. a3 Kf8 28. h4 Rd2 29. Rc2 Rxc2 30. Bxc2 Kf7 31. f3 Kf6 32. Kf2 Bc4 33. h5 a5 34. g4 Bc5 35. Bc7 b6 36. Be4 Bb5 37. f4 a4 38. Be5+ Kf7 39. Bd4 Bxd4 40. exd4 c5 41. dxc5 bxc5 42. Ke3 Kf6 43. Bd5 Bd7 44. Bf3 Bb5 45. Kd2 Bc4 46. Bd1 Bb5 47. Kc3 Ke6 48. Bf3 Kd6 49. b3 axb3 50. Kxb3 Ke7 51. a4 Bd3 52. Kc3 Ba6 53. a5 Kd6 54. g5 hxg5 55. fxg5 Ke5 56. h6 gxh6 57. gxh6 Kf6 58. Be4 1-0

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.30"]
[Round "8"]
[White "Wong, Gengchun"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2180"]
[BlackElo "2311"]
[PlyCount "60"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 h6 4. c3 c5 5. Ngf3 Nf6 6. Bd3 cxd4 7. cxd4 dxe4 8. Nxe4 Be7 9. 0-0 Nc6 10. Be3 0-0 11. Rc1 Nd5 12. Bb1 Bd7 13. Nc5 Rb8 14. Qc2 f5 15. a3 Bf6 16. Ba2 Qe7 17. Bxd5 exd5 18. Bf4 Rbc8 19. Qb3 Nxd4 20. Qxd5+ Be6 21. Nxe6 Qxe6 22. Qxe6+ Nxe6 23. Be5 Rxc1 24. Rxc1 Ng5 25. Bxf6 Nxf3+ 26. gxf3 Rxf6 27. Rc8+ Rf8 28. Rc5 Rf7 29. Kg2 Kh7 30. Kg3 g5 1/2-1/2

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.29"]
[Round "7"]
[White "Derichs, Roger"]
[Black "Cordes, Klaus"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2311"]
[BlackElo "2118"]
[PlyCount "97"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be3 c6 7. Be2 a6 8. h3 b5 9. cxb5 axb5 10. a3 Nfd7 11. 0-0 Ba6 12. Rc1 Nb6 13. b3 Bb7 14. Ra1 Na6 15. b4 Nc4 16. Bxc4 bxc4 17. Qc2 Nc7 18. a4 Qd7 19. Rfd1 f5 20. Qe2 Ba6 21. Rab1 fxe4 22. Nxe4 Kh8 23. Nc3 Rf5 24. Nh2 Raf8 25. Ng4 h5 26. Nh2 Ne6 27. d5 cxd5 28. Nxd5 c3 29. b5 Bb7 30. Nb4 Nf4 31. Bxf4 Rxf4 32. f3 Bd4+ 33. Kh1 Bg7 34. a5 R8f5 35. Nc2 Ra4 36. a6 Bc8 37. Rb3 Re5 38. Qd3 Kh7 39. Nf1 Qc7 40. Rxc3 Qb8 41. Nfe3 Be6 42. Ra3 Rxa3 43. Nxa3 Rc5 44. Qe4 Re5 45. Qb7 Qc8 46. Nac4 Rc5 47. Qxc8 Rxc8 48. b6 Bxc4 49. Nxc4 1-0

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.29"]
[Round "6"]
[White "Pubantz, Jan"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "2207"]
[BlackElo "2311"]
[PlyCount "51"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 Bd6 6. 0-0 0-0 7. b3 b6 8. Ba3 Bb7 9. Bxd6 cxd6 10. cxd5 Nxd5 11. Qd2 Nf6 12. Nc3 Nbd7 13. Rac1 Qe7 14. Ng5 Bxg2 15. Kxg2 Rac8 16. Nb5 h6 17. Rxc8 Rxc8 18. Nxa7 Rf8 19. Nc6 Qe8 20. Nf3 g5 21. Qc2 g4 22. Nd2 Qa8 23. Kg1 Nd5 24. e4 fxe4 25. Nxe4 Rc8 26. Nxd6 1-0

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.28"]
[Round "4"]
[White "Dehmel, Jens"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "2045"]
[BlackElo "2311"]
[PlyCount "34"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 Bd6 6. 0-0 0-0 7. Nc3 c6 8. Qc2 Qe7 9. Rb1 b6 10. Bf4 Bxf4 11. gxf4 Bb7 12. Rfd1 Nbd7 13. b4 dxc4 14. Ne5 Nd5 15. e3 Nxe5 16. fxe5 Nxb4 17. Qa4 a5 0-1

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.28"]
[Round "5"]
[White "Derichs, Roger"]
[Black "Stabolewski, Andreas"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2311"]
[BlackElo "2092"]
[PlyCount "103"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 dxc4 5. 0-0 Nbd7 6. Na3 Nb6 7. Ne5 Qd4 8. Nexc4 Nxc4 9. Qa4 Nd5 10. Qxc4 Qxc4 11. Nxc4 g6 12. Rb1 Bg7 13. b4 Nb6 14. Na5 a6 15. d3 0-0 16. Bd2 Rb8 17. Rfc1 Bd7 18. Bf4 e5 19. Be3 Na4 20. Ba7 Rbc8 21. Bc5 Nxc5 22. bxc5 Rc7 23. Nxb7 a5 24. Rb6 Ra8 25. Nd6 a4 26. Rcb1 Bf8 27. a3 Kg7 28. Rc1 f5 29. e3 Kf6 30. d4 e4 31. Nc4 Be6 32. Nd2 Bd5 33. Bf1 Ke6 34. Bc4 Bxc4 35. Nxc4 Kd5 36. Rb4 Ke6 37. Nb6 Ra5 38. Rcc4 Rb7 39. Kf1 Rb5 40. Rxa4 Rb1+ 41. Kg2 g5 42. Ra8 Rf7 43. Rc8 f4 44. Rxc6+ Kf5 45. h3 g4 46. hxg4+ Kxg4 47. exf4 e3 48. Rc2 Re7 49. f3+ Kh5 50. Re2 Rd1 51. Nd5 Rd2 52. Kh3 1-0

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.27"]
[Round "3"]
[White "Derichs, Roger"]
[Black "Cipra, Lothar"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2311"]
[BlackElo "1921"]
[PlyCount "45"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. e3 Nbd7 9. Nc3 c6 10. d4 Rc8 11. Qe2 c5 12. Rac1 dxc4 13. bxc4 Ne4 14. Rfd1 Qc7 15. d5 exd5 16. cxd5 Ndf6 17. Nxe4 Nxe4 18. Qc2 f5 19. Ne5 Bd6 20. f4 Nf6 21. Qxf5 Bxd5 22. Bxd5+ Nxd5 23. Qe6+ 1-0

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.27"]
[Round "2"]
[White "Falk, Kristoffer"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "2042"]
[BlackElo "2311"]
[PlyCount "95"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 c6 6. 0-0 Bd6 7. Qc2 0-0 8. Nc3 Qe7 9. Ne5 Nbd7 10. Bf4 Bxe5 11. dxe5 Ng4 12. cxd5 exd5 13. Bxd5+ cxd5 14. Nxd5 Qd8 15. e6 Nb6 16. e7 Qxd5 17. Rfd1 Qf7 18. exf8Q+ Qxf8 19. Qb3+ Kh8 20. Bc7 Nd7 21. Rac1 Ngf6 22. Bd6 Qe8 23. Qf3 Qe6 24. Ba3 h6 25. Rd6 Qe5 26. Rd2 Kh7 27. b3 Ne4 28. Rdc2 Nb6 29. Bb2 Qe6 30. Rc7 Nf6 31. Bxf6 Qxf6 32. e4 Qg6 33. exf5 Bxf5 34. Re1 Bg4 35. Qxb7 Rg8 36. Qe4 Bf5 37. Qd4 Nc8 38. a4 Rf8 39. Qc5 Rd8 40. a5 Nd6 41. Rxa7 Ne4 42. Rxg7+ Kxg7 43. Qe7+ Qf7 44. Qxd8 Qb7 45. Qb6 Qd5 46. a6 Nd6 47. a7 Be4 48. a8Q 1-0

[Event "Erfurt op-A 29th"]
[Site "Erfurt"]
[Date "2019.12.26"]
[Round "1"]
[White "Derichs, Roger"]
[Black "Wilton, Lars"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2311"]
[BlackElo "2047"]
[PlyCount "102"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be3 Nbd7 7. Nd2 c5 8. d5 e5 9. Be2 Ne8 10. g4 Bf6 11. Nf3 Ng7 12. Qd2 a6 13. 0-0-0 Be7 14. Rdg1 b5 15. Bh6 b4 16. Nd1 Nf6 17. Ng5 Kh8 18. Ne3 Ng8 19. Bxg7+ Kxg7 20. Nf3 Kh8 21. h4 Nf6 22. Bd3 h5 23. Nf5 gxf5 24. Qh6+ Nh7 25. gxf5 Rg8 26. Qxh5 Rxg1+ 27. Rxg1 Qf8 28. Ng5 Bxg5+ 29. hxg5 Ra7 30. Rh1 Qg8 31. g6 fxg6 32. fxg6 Rg7 33. gxh7 Rxh7 34. Qd1 Rxh1 35. Qxh1+ Qh7 36. Qf3 Kg7 37. Be2 Qh6+ 38. Kc2 Qg5 39. a3 a5 40. Bf1 Bd7 41. Bh3 Ba4+ 42. b3 Be8 43. axb4 axb4 44. Bf5 Bh5 45. Qh1 Kh6 46. Qh2 Kg7 47. Qh3 Kh6 48. Bd7 Qg1 49. Qe6+ Bg6 50. Qf6 Qe1 51. Qh4+ Kg7 1/2-1/2

[Event "Hessenliga 1921"]
[Site "Hessen"]
[Date "2019.12.01"]
[Round "4.1"]
[White "Kloninger, Paul"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "A85"]
[WhiteElo "2293"]
[BlackElo "2311"]
[PlyCount "36"]
[EventDate "2019.09.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Fulda"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. Bg5 Bb4 5. Qc2 h6 6. Bxf6 Qxf6 7. Nf3 0-0 8. a3 Bxc3+ 9. Qxc3 c5 10. g3 b6 11. Bg2 Bb7 12. 0-0 Nc6 13. Rad1 Rfd8 14. e3 d6 15. Rd2 Rac8 16. Rfd1 Na5 17. b3 Be4 18. Rb2 Rc7 1/2-1/2

[Event "Hessenliga 1921"]
[Site "Hessen"]
[Date "2019.11.10"]
[Round "3.1"]
[White "Brueggemann, Ludger"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "B26"]
[WhiteElo "2199"]
[BlackElo "2311"]
[PlyCount "30"]
[EventDate "2019.09.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Frankfurt TV"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. Be3 d6 7. Qd2 Nd4 8. Nd1 e5 9. c3 Nc6 10. f4 Nge7 11. Nf3 exf4 12. Bxf4 h6 13. 0-0 Be6 14. Nf2 g5 15. Be3 Ng6 1/2-1/2

[Event "Hessenliga 1921"]
[Site "Hessen"]
[Date "2019.09.22"]
[Round "1.1"]
[White "Bethke, Richard"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2368"]
[BlackElo "2311"]
[PlyCount "61"]
[EventDate "2019.09.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Neuberg II"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nd2 h6 4. c3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Ngf3 Nf6 8. Bb5+ Nc6 9. 0-0 0-0 10. h3 Bb6 11. Nb3 Ne4 12. Nbd4 Qd6 13. Be3 Bc7 14. c4 Be6 15. Rc1 Ng5 16. Bxg5 hxg5 17. Nxc6 bxc6 18. cxd5 cxd5 19. Rc6 Qd8 20. Nd4 Rb8 21. Bd3 Re8 22. Re1 Bd7 23. Rxe8+ Bxe8 24. Qh5 g6 25. Bxg6 fxg6 26. Rxg6+ Bxg6 27. Qxg6+ Kh8 28. Qh6+ Kg8 29. Qg6+ Kh8 30. Qh6+ Kg8 31. Qg6+ 1/2-1/2

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2019.05.12"]
[Round "9.1"]
[White "Derichs, Roger"]
[Black "Bethke, Richard"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2295"]
[BlackElo "2212"]
[PlyCount "68"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Neuberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. b3 Be7 5. Bg2 c5 6. 0-0 Nc6 7. e3 b6 8. Bb2 Bb7 9. Nc3 0-0 10. cxd5 Nxd5 11. Nxd5 exd5 12. d4 Qd7 13. Rc1 Rac8 14. Qe2 c4 15. bxc4 Ba6 16. Nd2 Na5 17. Rfd1 Nxc4 18. Bc3 Nb2 19. Qxa6 Nxd1 20. Rxd1 Rxc3 21. Nf3 f6 22. h4 Rfc8 23. Kh2 Rc2 24. Rf1 R8c7 25. Bh3 Qc6 26. Qd3 g6 27. h5 Kg7 28. hxg6 hxg6 29. Nh4 f5 30. Nf3 Qc4 31. Ne5 Qxd3 32. Nxd3 Bd6 33. Bg2 Rxa2 34. Bxd5 Rd2 0-1

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2019.04.07"]
[Round "8.1"]
[White "Colin, Vincent"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "2382"]
[BlackElo "2295"]
[PlyCount "143"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Bad Nauheim"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d3 c5 3. Nf3 Nc6 4. g3 Nge7 5. h4 e5 6. Bg2 d6 7. c3 h6 8. h5 Bg4 9. Nbd2 Qd7 10. Nc4 0-0-0 11. Ne3 Be6 12. c4 Nd4 13. Nxd4 exd4 14. Nd5 g5 15. b4 Bg7 16. Nxe7+ Qxe7 17. 0-0 Kb8 18. Rb1 Rd7 19. bxc5 dxc5 20. f4 Rc7 21. Qf3 f6 22. Rf2 Bd7 23. Rfb2 Bc6 24. a4 Qd7 25. a5 Bf8 26. a6 b6 27. Kh2 Bd6 28. Bh3 Qe7 29. Bf5 Rg8 30. Qg4 Rg7 31. fxg5 fxg5 32. Rf2 Rf7 33. Bd2 Rc8 34. Be1 Rcf8 35. Rd2 Kc7 36. Rc2 Be5 37. Kh3 Kd6 38. Kh2 Rf6 39. Kg1 R6f7 40. Rbb2 Rf6 41. Kh2 Be8 42. Kh3 Bf7 43. Qd1 Kc7 44. g4 Be8 45. Rb1 Qd6 46. Re2 Bc6 47. Bf2 Rb8 48. Qe1 Rbf8 49. Bg1 Re8 50. Bg6 Ref8 51. Bf5 Re8 52. Rf2 Ref8 53. Qd2 R8f7 54. Rbf1 Rf8 55. Rf3 R6f7 56. Bf2 Rf6 57. Be1 Rb8 58. Qc1 Rbf8 59. Bd2 Rg8 60. Bg6 Rxf3+ 61. Rxf3 Rf8 62. Bf5 Qe7 63. Kg2 Bd6 64. Be1 Be5 65. Qd2 Qd6 66. Qf2 Rf6 67. Qg1 Rf8 68. Rf1 Rf6 69. Bd2 Rf8 70. Rb1 Qe7 71. Qc1 Bd6 72. Kh3 1/2-1/2

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2019.03.11"]
[Round "7.1"]
[White "Stelzer, Harald"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2183"]
[BlackElo "2295"]
[PlyCount "126"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Bensheim"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Be2 cxd4 7. cxd4 Bb5 8. 0-0 Bxe2 9. Qxe2 Nc6 10. Be3 Nge7 11. Nc3 Nf5 12. Na4 Qb4 13. b3 a6 14. Qb2 Be7 15. a3 Qb5 16. Nc3 Qb6 17. b4 0-0 18. Qd2 f6 19. exf6 Bxf6 20. Na4 Qa7 21. Nc5 Rfe8 22. Rac1 Rac8 23. Rfd1 Nd6 24. Qd3 Nc4 25. Qb3 b6 26. Nd3 h6 27. h3 a5 28. b5 a4 29. Qb1 N6a5 30. Nde5 Bxe5 31. dxe5 Nb3 32. Rc3 Nxa3 33. Rxc8 Rxc8 34. Qd3 Nc4 35. Qg6 Qf7 36. Qg4 a3 37. Bxh6 Re8 38. Nd4 Nxd4 39. Rxd4 a2 40. Rd1 Kh7 41. Bxg7 Qg6 42. Qe2 Ra8 43. Ra1 Kxg7 44. Kh2 Qe4 45. Rxa2 Qxe2 46. Rxe2 d4 47. Rc2 Nxe5 48. Rc7+ Kf6 49. f4 Ng6 50. Rd7 Nxf4 51. Rxd4 Nd5 52. Rd3 Ra4 53. g4 Rb4 54. Rf3+ Kg6 55. Kg3 Rxb5 56. Rf8 Rb3+ 57. Kg2 b5 58. h4 Ne3+ 59. Kf3 Kg7 60. Rb8 Kf6 61. h5 Nd5+ 62. Ke4 Rg3 63. Rf8+ Ke7 0-1

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2019.02.17"]
[Round "6.1"]
[White "Derichs, Roger"]
[Black "Keller, Peter1111"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2295"]
[BlackElo "2193"]
[PlyCount "71"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Frankfurt TV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nd5 Nxd5 10. cxd5 c6 11. Bc4 b5 12. Bb3 Bb7 13. Rc1 cxd5 14. Rc7 Bc6 15. exd5 Be8 16. Rxa7 Rxa7 17. Bxa7 Rc8 18. Ke2 Nd7 19. Be3 f6 20. Nd2 f5 21. f3 Bf7 22. Nb1 Nf6 23. Rd1 b4 24. Bb6 Bf8 25. Bf2 h6 26. Bg3 f4 27. Bf2 e4 28. fxe4 Nxe4 29. Bd4 g5 30. Nd2 Bh5+ 31. Nf3 g4 32. d6+ Kh7 33. d7 Rd8 34. Bb6 Be7 35. Bxd8 Bxd8 36. Bc2 1-0

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2019.02.03"]
[Round "5.1"]
[White "Sadeghi, Behrang"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2280"]
[BlackElo "2295"]
[PlyCount "120"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Bad Homburg"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Ne7 5. Nf3 Nec6 6. a3 a5 7. Bd3 b6 8. 0-0 Ba6 9. Re1 Bxd3 10. Qxd3 Be7 11. b3 Qc8 12. Ra2 Qa6 13. Rd2 Qxd3 14. Rxd3 Na6 15. Rdd1 h6 16. h4 0-0 17. h5 Rfc8 18. Bb2 b5 19. Kf1 Kf8 20. g3 Ke8 21. Kg2 c4 22. b4 axb4 23. cxb4 Naxb4 24. axb4 Bxb4 25. Bc3 Be7 26. Re2 b4 27. Be1 Ra1 28. Nc3 Ra5 29. Nb1 Rca8 30. Rdd2 Ra1 31. Rb2 R8a4 32. Kh2 Bd8 33. Kg2 Bb6 34. Nc3 Ra6 35. Nb5 R1a4 36. Rec2 Kd7 37. Rc1 b3 38. Bc3 Ba5 39. Nd2 Rb6 40. Nxb3 Rxb5 41. Nc5+ Rxc5 42. dxc5 Bxc3 43. Rxc3 Nxe5 44. f4 d4 45. Rc1 Nd3 46. Rb7+ Kc6 47. Rcb1 c3 48. Rxf7 c2 49. Rf1 c1Q 50. Rxc1 Nxc1 51. Kf3 Nd3 52. Rxg7 Nxc5 53. g4 d3 54. Rg8 Rd4 55. Ra8 d2 56. Ra1 d1Q+ 57. Rxd1 Rxd1 58. g5 Nd7 59. Kg4 Rg1+ 60. Kh4 Kd5 0-1

[Event "Erfurt op 28th"]
[Site "Erfurt"]
[Date "2018.12.30"]
[Round "8"]
[White "Derichs, Roger"]
[Black "Schmid, Franz"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2295"]
[BlackElo "2176"]
[PlyCount "55"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. e3 c5 4. b4 dxe3 5. fxe3 cxb4 6. d4 e6 7. Bd3 Nf6 8. 0-0 Be7 9. Bb2 0-0 10. e4 Na6 11. Qe2 Nd7 12. e5 f6 13. exf6 Nxf6 14. Ng5 Nc7 15. Nd2 h6 16. Nge4 Nce8 17. Nf3 Nxe4 18. Bxe4 Nd6 19. Bc2 Bf6 20. Qd3 Nf5 21. g4 Ne7 22. Ne5 g6 23. Nxg6 Rf7 24. Nxe7+ Qxe7 25. Qg6+ Kf8 26. Qxh6+ Bg7 27. Qg6 Ke8 28. Qh5 1-0

[Event "Erfurt op 28th"]
[Site "Erfurt"]
[Date "2018.12.29"]
[Round "6"]
[White "Derichs, Roger"]
[Black "Nagy, Gabor"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2295"]
[BlackElo "2472"]
[PlyCount "58"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 d5 5. d4 cxd4 6. Nxd4 e5 7. Nxc6 bxc6 8. Bg2 Rb8 9. Bg5 Rxb2 10. 0-0 Qa5 11. Qd3 Bb4 12. Nd1 Rd2 13. Bxd2 Bxd2 14. cxd5 cxd5 15. Rb1 0-0 16. Rb2 Bb4 17. Qb1 Be7 18. Ne3 Ba6 19. Rd1 d4 20. Nf1 Ba3 21. Rc2 Rd8 22. Qb3 h6 23. e3 d3 24. Rc3 Bb4 25. Rc6 Bb5 26. Rc7 Qxc7 27. Qxb4 Ba6 28. h3 Nd5 29. Qa3 Nc3 0-1

[Event "Erfurt op 28th"]
[Site "Erfurt"]
[Date "2018.12.29"]
[Round "7"]
[White "Feldmann, Johannes"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "2212"]
[BlackElo "2295"]
[PlyCount "94"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 Bd6 6. 0-0 0-0 7. Nc3 c6 8. Rb1 Qe7 9. Qc2 Bd7 10. Bg5 Be8 11. c5 Bc7 12. b4 h6 13. Bf4 Bxf4 14. gxf4 Bh5 15. Ne5 Nbd7 16. b5 Nxe5 17. fxe5 Ne4 18. Nxe4 fxe4 19. bxc6 bxc6 20. Rb3 Rf5 21. Rg3 Raf8 22. Qd2 Kh7 23. f3 exf3 24. Bxf3 Qh4 25. Bg2 Rxf1+ 26. Bxf1 Rf4 27. e3 Rf7 28. Bd3+ Kg8 29. Qg2 a5 30. Qh3 Qxh3 31. Rxh3 Bd1 32. Rg3 Rb7 33. Rg2 a4 34. Rd2 Bh5 35. Kf2 a3 36. e4 Rf7+ 37. Ke1 Bf3 38. Rf2 dxe4 39. Bc4 Bg4 40. Rxf7 Kxf7 41. Kd2 Bf3 42. Bb3 Ke7 43. Ke3 g5 44. Ba4 Kd7 45. h3 Bg2 46. Bc2 Bxh3 47. Bxe4 Bf1 0-1

[Event "Erfurt op 28th"]
[Site "Erfurt"]
[Date "2018.12.28"]
[Round "4"]
[White "Derichs, Roger"]
[Black "Scheckenbach, Franz"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2295"]
[BlackElo "2132"]
[PlyCount "73"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. d4 d6 6. Be3 Ng4 7. Bg5 h6 8. Bh4 Nd7 9. Be2 c5 10. d5 a6 11. Nd2 Ngf6 12. f4 Nh7 13. Nf3 Ndf6 14. Qd2 Bd7 15. 0-0 b5 16. Bd3 b4 17. Nd1 Bg4 18. e5 Ne8 19. e6 f5 20. h3 Bxf3 21. Rxf3 Nef6 22. Nf2 h5 23. Kh1 Kh8 24. Rg1 Ng8 25. g4 Nh6 26. Rfg3 Bd4 27. gxh5 Rg8 28. hxg6 Nf8 29. Qe2 Kg7 30. Bg5 Rh8 31. Bxh6+ Rxh6 32. Bxf5 Qa5 33. Bb1 Rb8 34. R3g2 b3 35. a3 Qa4 36. Ng4 Rh4 37. f5 1-0

[Event "Erfurt op 28th"]
[Site "Erfurt"]
[Date "2018.12.28"]
[Round "5"]
[White "Wiebe, Patrick Martin"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "2236"]
[BlackElo "2295"]
[PlyCount "94"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. c4 e6 2. g3 f5 3. Bg2 Nf6 4. Nf3 d5 5. 0-0 c6 6. Qc2 Be7 7. b3 0-0 8. Bb2 Na6 9. a3 Bd7 10. d3 Be8 11. Nbd2 Nc7 12. Ne5 Bh5 13. Rae1 Nd7 14. Ndf3 Bxf3 15. Nxf3 Bf6 16. e4 Bxb2 17. Qxb2 Nc5 18. Ne5 f4 19. b4 Na4 20. Qa1 Nb6 21. gxf4 Rxf4 22. Re3 Qf6 23. a4 Rd8 24. a5 Nc8 25. a6 Nxa6 26. Nxc6 bxc6 27. Qxa6 d4 28. e5 Qe7 29. Rg3 Qxb4 30. Qxc6 Qb6 31. Qa4 Ne7 32. Be4 Qc7 33. Rb1 Qxe5 34. Qxa7 Rf7 35. Qb6 Rdf8 36. Qb2 Nf5 37. Rg4 Nd6 38. Rf1 g6 39. f3 Rf4 40. Qg2 Rxg4 41. fxg4 Rf4 42. Qg3 Nxe4 43. dxe4 g5 44. Kh1 Kg7 45. Qb3 Rxg4 46. Qb7+ Kh6 47. c5 Rf4 0-1

[Event "Erfurt op 28th"]
[Site "Erfurt"]
[Date "2018.12.27"]
[Round "2"]
[White "Schupp, Uwe"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "2103"]
[BlackElo "2295"]
[PlyCount "69"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 e6 2. g3 f5 3. Bg2 Nf6 4. c4 d5 5. 0-0 c6 6. b3 Bd6 7. Bb2 Nbd7 8. d3 0-0 9. Nbd2 Ng4 10. cxd5 exd5 11. Qc2 f4 12. Rae1 fxg3 13. hxg3 Qe8 14. e4 Qh5 15. exd5 cxd5 16. Re2 Nb6 17. Qc3 Qh6 18. Rfe1 Bd7 19. Qd4 Rf7 20. Nf1 Raf8 21. Ne3 Qh5 22. Nf1 Bc6 23. Re6 Bc7 24. Re7 Nd7 25. Qxg7+ Rxg7 26. Rxg7+ Kh8 27. Rg5+ Be5 28. Nxe5 Qxg5 29. Nf7+ Kg8 30. Nxg5 Rxf2 31. Bd4 Rxa2 32. Re7 Ndf6 33. Nxh7 Nxh7 34. Rg7+ Kf8 35. Rxg4 1-0

[Event "Erfurt op 28th"]
[Site "Erfurt"]
[Date "2018.12.26"]
[Round "1"]
[White "Derichs, Roger"]
[Black "Poetsch, Leonore"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2295"]
[BlackElo "2047"]
[PlyCount "103"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "GER"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 Bf5 5. cxd5 cxd5 6. Qb3 Qc8 7. 0-0 e6 8. d3 Bd6 9. Nc3 a6 10. Bf4 Bxf4 11. gxf4 0-0 12. Rac1 Nc6 13. Na4 Qc7 14. Ne5 Ng4 15. Qb6 Rfc8 16. Qxc7 Rxc7 17. Nxc6 Rxc6 18. Rxc6 bxc6 19. Rc1 Rc8 20. e4 dxe4 21. dxe4 Bg6 22. e5 f6 23. h3 Nh6 24. Rxc6 Rxc6 25. Bxc6 Nf7 26. exf6 gxf6 27. Nc5 a5 28. Nb7 Kf8 29. Nxa5 Ke7 30. f3 e5 31. fxe5 fxe5 32. Nb7 Ng5 33. h4 Ne6 34. a4 Nd4 35. Bd5 Kd7 36. b4 Kc7 37. Nc5 Nc2 38. Na6+ Kb6 39. Bc4 Nd4 40. Kf2 Bh5 41. Nc5 Bxf3 42. Nd7+ Ka7 43. Nxe5 Bd1 44. a5 Ba4 45. Bd3 h6 46. Ke3 Ne6 47. Bc4 Ng7 48. Bd3 Ne6 49. Nf7 h5 50. Nd6 Nc7 51. Bc4 Kb8 52. Ke4 1-0

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2018.12.09"]
[Round "4.1"]
[White "Derichs, Roger"]
[Black "Cherny, Andrey"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2295"]
[BlackElo "2181"]
[PlyCount "98"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Kassel"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. Bg2 e6 5. b3 Nbd7 6. 0-0 Be7 7. Nc3 0-0 8. Qc2 Nc5 9. d4 Nce4 10. Na4 Bd7 11. Ne5 Nd6 12. Nc5 Be8 13. Ncd3 Nd7 14. Nf3 Rc8 15. c5 Ne4 16. b4 g5 17. Nfe1 Bf6 18. Bb2 Bg7 19. f3 Nef6 20. Rd1 Qe7 21. e4 dxe4 22. fxe4 e5 23. Nf3 Ng4 24. Rde1 f6 25. Bc1 exd4 26. Nxd4 Nh6 27. Nf5 Nxf5 28. exf5 Qd8 29. Re6 Bf7 30. Rd6 Re8 31. Nb2 Re7 32. Nc4 Qe8 33. Bb2 Bxc4 34. Qxc4+ Kh8 35. Qd4 Qf7 36. Rd1 Ne5 37. Bc3 Ree8 38. a4 Bf8 39. b5 Bxd6 40. cxd6 cxb5 41. axb5 Qd7 42. Ba1 Qxf5 43. Qxa7 Qc2 44. Qd4 Qe2 45. Qd5 Qe3+ 46. Kh1 Ng4 47. h3 Qe1+ 48. Rxe1 Rxe1+ 49. Bf1 Rxf1+ 0-1

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2018.11.18"]
[Round "3.1"]
[White "Frolov, Artur"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2425"]
[BlackElo "2295"]
[PlyCount "107"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Bad Emstal/Wolfhagen"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Nf3 Bd6 8. Bg5 Nbd7 9. 0-0-0 a6 10. Rhe1 h6 11. Bh4 Kf8 12. h3 g6 13. g4 Kg7 14. Nd2 h5 15. g5 Nh7 16. Nf3 Re8 17. Nd5 Nhf8 18. Rd2 Ne6 19. Red1 Nf4 20. Nxc7 Bxc7 21. Rxd7 Bxd7 22. Rxd7 Rac8 23. Rxf7+ Kh8 24. Bg3 Rf8 25. Bxf4 exf4 26. Nh4 Rxf7 27. Bxf7 f3 28. Bxg6 Rd8 29. a4 Bf4+ 30. Kb1 Rd1+ 31. Ka2 Rd2 32. Bxh5 Rxf2 33. Ng6+ Kg8 34. Nxf4 Rxc2 35. Bxf3 Rf2 36. Bg4 Rxf4 37. Bf5 Rf3 38. a5 Rg3 39. g6 Kg7 40. b3 Rc3 41. Ka3 Rc5 42. Kb4 Rc1 43. h4 Rc7 44. h5 Kh6 45. Bg4 Kg7 46. e5 Kh6 47. Bf3 Re7 48. Ka4 Kg7 49. b4 Rc7 50. Bd5 Re7 51. Kb3 Kh6 52. Kc4 Rc7+ 53. Kd4 Kxh5 54. Bf7 1-0

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2018.11.04"]
[Round "2.1"]
[White "Derichs, Roger"]
[Black "Schoenau, Werner"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2295"]
[BlackElo "2216"]
[PlyCount "53"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Dettingen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 c5 2. b3 b6 3. g3 Bb7 4. Bg2 Nf6 5. Bb2 e6 6. c4 Be7 7. 0-0 Qc7 8. Nc3 a6 9. e3 d6 10. d4 Nbd7 11. Rc1 Rg8 12. d5 g5 13. e4 g4 14. Ne1 Ne5 15. Nd3 Nfd7 16. Ne2 Bf6 17. Nef4 Nxd3 18. Nxd3 Bxb2 19. Nxb2 0-0-0 20. Nd3 Rde8 21. f3 Nf6 22. fxg4 Nxg4 23. Rf4 f5 24. Bh3 Qg7 25. exf5 exf5 26. Rxf5 h5 27. Nf4 1-0

[Event "Hessenliga 1819"]
[Site "Hessen"]
[Date "2018.09.23"]
[Round "1.1"]
[White "Wendel, Stephan"]
[Black "Derichs, Roger"]
[Result "1/2-1/2"]
[ECO "C16"]
[WhiteElo "2271"]
[BlackElo "2295"]
[PlyCount "31"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Frankfurt BvK"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 b6 7. Qg4 Ng6 8. h4 h5 9. Qd1 c5 10. Be2 Nxh4 11. g3 Nf5 12. Rxh5 Rxh5 13. Bxh5 Nc6 14. Be2 Qc7 15. g4 Nfe7 16. f4 1/2-1/2

[Event "Hessenliga 1718"]
[Site "Hessen"]
[Date "2018.04.15"]
[Round "9.1"]
[White "Derichs, Roger"]
[Black "Bollmann, Henrik"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2295"]
[BlackElo "2120"]
[PlyCount "44"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Bad Nauheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. Nf3 d5 3. g3 c6 4. Bg2 Nf6 5. b3 a5 6. Nc3 d4 7. Na4 c5 8. e3 Nc6 9. Ba3 Nd7 10. 0-0 Be7 11. exd4 cxd4 12. Bxe7 Qxe7 13. Ne1 e5 14. Nd3 Nb4 15. Qe2 0-0 16. f4 Ra6 17. fxe5 Nxd3 18. Qxd3 Qxe5 19. Rae1 Qd6 20. Rf4 Ne5 21. Qxd4 Nd3 22. Ree4 Nxf4 1/2-1/2

[Event "Hessenliga 1718"]
[Site "Hessen"]
[Date "2018.03.11"]
[Round "8.1"]
[White "Cherny, Andrey"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2179"]
[BlackElo "2295"]
[PlyCount "126"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Kassel II"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 e6 2. Bb2 d5 3. e3 Nd7 4. c4 c6 5. Nf3 f5 6. Be2 Ngf6 7. 0-0 Bd6 8. Nd4 Ne5 9. f4 Ng6 10. Qc2 Bd7 11. cxd5 Nxd5 12. Nc3 Nb4 13. Qd1 0-0 14. Nc2 Nxc2 15. Qxc2 e5 16. fxe5 Nxe5 17. d4 Ng4 18. Bxg4 fxg4 19. Rxf8+ Bxf8 20. e4 Qg5 21. Bc1 Qg6 22. Bf4 Re8 23. a3 Be7 24. b4 Bd8 25. Kh1 h5 26. Rd1 h4 27. Qd3 Rf8 28. Qe3 Qf7 29. Bd6 Qf2 30. Qxf2 Rxf2 31. Kg1 Rc2 32. Rd3 Bg5 33. Bb8 a6 34. Nd1 Be6 35. d5 cxd5 36. exd5 Bf5 37. Rd4 Kf7 38. Bf4 Bf6 39. Rd2 Rc8 40. Ne3 Bd7 41. Nd1 Rc1 42. Kf2 Ra1 43. Ne3 g5 44. Bb8 Bc3 45. Rc2 Rxa3 46. Nc4 Bd4+ 47. Ke1 Ra1+ 48. Ke2 Rg1 49. Nd6+ Kg6 50. Kd3 Be5 51. Kc4 Bxh2 52. Kc5 Rb1 53. Kb6 Rxb4+ 54. Kc7 Bf5 55. Re2 Re4 56. Rd2 Bf4 57. Rd1 Re7+ 58. Kb6 Rd7 59. Kc5 h3 60. gxh3 gxh3 61. Rh1 g4 62. Nxf5 Bxb8 63. Nd4 Ba7+ 0-1

[Event "Hessenliga 1718"]
[Site "Hessen"]
[Date "2018.02.18"]
[Round "7.2"]
[White "Derichs, Roger"]
[Black "Garzinsky, Dominik"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2295"]
[BlackElo "2093"]
[PlyCount "49"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Niederbrechen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 g6 2. Bb2 Nf6 3. Bxf6 exf6 4. c4 Bg7 5. Nc3 Nc6 6. g3 h5 7. h4 d6 8. Nh3 Bg4 9. Bg2 Qd7 10. Nf4 Nd8 11. d4 g5 12. Nfd5 Ne6 13. Ne3 f5 14. hxg5 Nxd4 15. Ned5 c5 16. f3 0-0-0 17. fxg4 Be5 18. Qd3 Bxg3+ 19. Qxg3 Nc2+ 20. Kd2 Nxa1 21. gxh5 Qe6 22. Bf3 Qe5 23. Qf4 a6 24. Rxa1 b5 25. Qxf5+ 1-0

[Event "Hessenliga 1718"]
[Site "Hessen"]
[Date "2018.01.28"]
[Round "6.1"]
[White "Derichs, Roger"]
[Black "Dunsbach, Ralf"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "2295"]
[BlackElo "2209"]
[PlyCount "69"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Bad Homburg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. g3 Nc6 3. Bg2 g6 4. Ne2 Bg7 5. c3 e5 6. 0-0 Nge7 7. Na3 0-0 8. Nc2 d5 9. d3 Be6 10. Be3 d4 11. cxd4 cxd4 12. Bd2 Qb6 13. b3 a5 14. Na3 Qa6 15. Nc1 Nb4 16. Be1 Rac8 17. f4 exf4 18. gxf4 f5 19. Bh4 Rc7 20. Nc4 fxe4 21. dxe4 Bxc4 22. bxc4 Qxc4 23. Rb1 Nc2 24. Qd3 Qxd3 25. Nxd3 Ne3 26. Rfc1 Nc6 27. Nc5 Nxg2 28. Kxg2 Rff7 29. Nxb7 Rxb7 30. Rxb7 Rxb7 31. Rxc6 Rb2+ 32. Kf3 Rxh2 33. Rc8+ Kf7 34. Rc7+ Kf8 35. Rc8+ 1/2-1/2

[Event "Hessenliga 1718"]
[Site "Hessen"]
[Date "2018.01.14"]
[Round "5.1"]
[White "Goreacinic, Dmitri"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "2276"]
[BlackElo "2295"]
[PlyCount "52"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Offenbach"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. Nf3 Bb4 5. Qb3 Qe7 6. Bf4 Ne4 7. e3 b6 8. Bxc7 Nc6 9. Bg3 Na5 10. Qc2 Ba6 11. Bd3 Rc8 12. 0-0 Bxc3 13. bxc3 Bxc4 14. Rfc1 Bxd3 15. Qxd3 Nc4 16. Ne5 Ned6 17. Rcb1 Nxe5 18. Bxe5 Nc4 19. e4 0-0 20. exf5 Rxf5 21. Bg3 Qa3 22. Rb3 Qa5 23. a4 a6 24. Rb4 Qd5 25. f3 Qc6 26. Qxc4 Rd5 0-1

[Event "Hessenliga 1718"]
[Site "Hessen"]
[Date "2017.11.19"]
[Round "3.1"]
[White "Schoenau, Werner"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2216"]
[BlackElo "2295"]
[PlyCount "114"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Dettingen"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. g3 e6 2. Bg2 f5 3. f4 Nf6 4. d3 d5 5. Nf3 Nbd7 6. 0-0 Bd6 7. Qe1 0-0 8. Nbd2 e5 9. fxe5 Nxe5 10. Nxe5 Bxe5 11. Nf3 Bd6 12. Bg5 h6 13. Bxf6 Qxf6 14. Qc3 Qxc3 15. bxc3 c6 16. Nd4 f4 17. gxf4 Bxf4 18. Rab1 Bd2 19. Rxf8+ Kxf8 20. Rb3 a5 21. a4 Ke7 22. Kf2 Bf4 23. h4 Be5 24. e4 dxe4 25. Bxe4 Kd6 26. Rb1 Kc7 27. Ke3 Bd7 28. Rf1 Bf6 29. c4 Rf8 30. Rf3 b6 31. Rg3 Bxh4 32. Rg2 Bf6 33. Rg6 Re8 34. c5 bxc5 35. Nb3 Kb6 36. Nd2 Bg5+ 37. Ke2 Re7 38. Nc4+ Kc7 39. Kf3 Be8 40. Rd6 Bf6 41. Kf4 Be5+ 42. Nxe5 Kxd6 43. Nc4+ Ke6 44. Nxa5 Ra7 45. Nb3 Kd6 46. a5 Bf7 47. c4 Bh5 48. d4 cxd4 49. c5+ Kc7 50. Nxd4 g5+ 51. Ke5 Rxa5 52. Ne6+ Kd7 53. Kf6 Bg4 54. Nf8+ Kc7 55. Kg6 Rxc5 56. Kxh6 Bf5 57. Bg2 g4 0-1

[Event "Hessenliga 1718"]
[Site "Hessen"]
[Date "2017.11.05"]
[Round "2.1"]
[White "Derichs, Roger"]
[Black "Wendel, Stephan"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2295"]
[BlackElo "2271"]
[PlyCount "37"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Frankfurt BvK"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. c4 d4 3. b4 f6 4. Na3 e5 5. Nc2 c5 6. d3 cxb4 7. Rb1 Nc6 8. g3 Bc5 9. Bg2 Nge7 10. 0-0 0-0 11. Nd2 Ng6 12. Ne4 Be7 13. a3 f5 14. Nd2 a5 15. axb4 axb4 16. Nb3 Be6 17. Bd2 Ra6 18. Qe1 Ra4 19. c5 1/2-1/2

[Event "Hessenliga 1718"]
[Site "Hessen"]
[Date "2017.09.17"]
[Round "1.1"]
[White "Derichs, Roger"]
[Black "Hankel, Dennis"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2295"]
[BlackElo "2128"]
[PlyCount "65"]
[EventDate "2017.09.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Giessen"]
[BlackTeam "Neuberg II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 d5 2. c4 c6 3. g3 Bg4 4. Bg2 e6 5. b3 Nd7 6. Bb2 Ngf6 7. 0-0 Bd6 8. d4 0-0 9. Nbd2 Re8 10. Ne5 Bh5 11. h3 Qc7 12. f4 c5 13. g4 Bg6 14. e3 Rad8 15. Qe2 Ne4 16. Nxe4 Bxe4 17. Bxe4 dxe4 18. Qg2 f5 19. Rad1 Re7 20. Rd2 cxd4 21. exd4 Bxe5 22. fxe5 Qa5 23. Rdf2 Rf8 24. gxf5 exf5 25. Rxf5 Qxa2 26. Rxf8+ Nxf8 27. Qc2 Ne6 28. Qc3 Qa6 29. Qb4 Rf7 30. Rxf7 Kxf7 31. d5 Nf4 32. e6+ Kg8 33. Qe7 1-0

[Event "Hessenliga 1617"]
[Site "Hessen"]
[Date "2017.03.26"]
[Round "8.1"]
[White "Roemer, Torsten"]
[Black "Derichs, Roger"]
[Result "0-1"]
[ECO "C16"]
[WhiteElo "2059"]
[BlackElo "2295"]
[PlyCount "64"]
[EventDate "2016.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Niederbrechen"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. Qg4 Bf8 6. a4 Nc6 7. Nf3 Nb4 8. Kd1 Ne7 9. Ne2 c5 10. Bd2 Ba6 11. Ng3 Bxf1 12. Rxf1 Nbc6 13. Re1 cxd4 14. Nxd4 Nxd4 15. Qxd4 Qc7 16. Qg4 Rc8 17. c3 g6 18. Bg5 Bg7 19. Bxe7 Qxe7 20. Nh5 0-0 21. Nxg7 Kxg7 22. Ke2 Rc4 23. Qf3 f6 24. Qg3 f5 25. Kf1 Qd7 26. a5 Qb5 27. Kg1 bxa5 28. b3 Qxb3 29. Rxa5 Rf7 30. Qg5 Qxc3 31. Raa1 Re4 32. Rec1 Qxe5 0-1

[Event "Hessenliga 1617"]
[Site "Hessen"]
[Date "2017.03.05"]
[Round "7.1"]
[White "Dunsbach, Ralf"]
[Black "Derichs, Roger"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "2180"]
[BlackElo "2295"]
[PlyCount "137"]
[EventDate "2016.09.18"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Bad Homburg"]
[BlackTeam "Giessen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. c4 e6 2. g3 f5 3. Bg2 Nf6 4. Nf3 d5 5. 0-0 c6 6. b3 Bd6 7. Bb2 0-0 8. Qc2 Ng4 9. h3 Nf6 10. Nc3 e5 11. cxd5 cxd5 12. Nb5 Nc6 13. Nxd6 Qxd6 14. d4 e4 15. Ne5 Be6 16. Qc5 Qc7 17. Nxc6 bxc6 18. Rfc1 Rac8 19. e3 Nd7 20. Qc3 g5 21. Ba3 Rf6 22. Be7 Rg6 23. Qb4 Bf7 24. h4 h6 25. hxg5 hxg5 26. Bh3 Be6 27. Qd6 Kf7 28. Qxc7 Rxc7 29. Bd6 Rc8 30. Bg2 Rh6 31. f4 exf3 32. Bxf3 Nf6 33. Kg2 Ne4 34. Be5 Nd2 35. Rh1 Rxh1 36. Rxh1 Nxf3 37. Rh7+ Kg6 38. Rg7+ Kh6 39. Kxf3 a6 40. Re7 Bg8 41. Ra7 Bh7 42. Rxa6 Bg6 43. b4 Bh5+ 44. Kf2 Kh7 45. Ke1 Bf3 46. a4 Be4 47. Kd2 Bg2 48. a5 Bf1 49. Ra7+ Kg6 50. Rg7+ Kh5 51. Bf6 Kg4 52. Rxg5+ Kf3 53. Rxf5+ Kg2 54. Be5 Bb5 55. g4 Kh3 56. g5 Kg4 57. Rf7 Kxg5 58. Ke1 Kg4 59. Kf2 Re8 60. Ke1 Re6 61. Rf4+ Kh3 62. Kf2 Rg6 63. Rf3+ Kg4 64. Rf8 Rh6 65. Ra8 Rh1 66. a6 Rf1+ 67. Kg2 Rf7 68. a7 Kf5 69. Bd6 1-0

