[Event "Lichtenberger Sommer 2025"]  [Date "2025.08.02"]  [Round "4"]  [White "Dittrich, Hans-Jürgen"]  [Black "Kellner, Rene"]  [Result "0-1"]  [Annotator "Taktische Analyse 7.0"]  [ECO "D02"]  [WhiteElo "1553"]  [BlackElo "1710"]  [WhiteFideId "-1"]  [PlyCount "60"]  [GameId "2215187880050738"]  [EventDate "2025.??.??"]  [SourceVersionDate "2022.11.27"]   1. d4 d5 2. Nf3 Bf5 3. Bf4 e6 4. e3 Bd6 5. Bg3 Nf6 6. Nbd2 O-O {D02: Damenbauernspiele.} 7. c3 Nbd7 8. Be2 h6 {Die Stellung ist ausgeglichen.} 9. Bxd6 $146 ({Vorgänger:} 9. Ne5 Ne4 10. Nxe4 Bxe4 11. Nxd7 Qxd7 12. Bxd6 Qxd6 13. Bf3 Bh7 14. O-O Rfe8 15. Qb3 {½-½ Cifuentes Camacho,M (1784)-Brito Carrascal,C (1985) COL-ch U20 Cali 2024 (9)}) 9... cxd6 10. h3 Ne4 11. Nxe4 dxe4 12. Nd2 d5 13. g3 {-0.48/36} (13. Qb3 $11 {-0.09/35}) 13... e5 14. f3 $2 {-2.26/28 [#]} (14. Nb3 $15 {-0.48/34}) 14... Qg5 15. Kf2 exd4 16. cxd4 {-2.16/33} (16. f4 $17 {-1.52/31} dxe3+ 17. Kg2) 16... Rfe8 $2 {0.14/30} (16... exf3 $19 {-2.16/33} 17. Nxf3 Qe7) 17. f4 $1 $11 Qe7 {0.59/35} (17... Qf6 $11 {0.17/37 verdient Beachtung.}) 18. Qb3 {-0.10/36} (18. g4 $14 {0.59/35}) 18... Nb6 19. Bg4 $2 {-1.88/28 [#]} (19. a4 $11 {0.00/34}) 19... Bxg4 $1 $19 20. hxg4 Rac8 21. Rhc1 {-2.64/24} (21. g5 {-1.83/32} hxg5 22. Rh2) 21... Qd7 22. Rc5 {-3.60/28} (22. Qd1 $142 {-2.51/29}) 22... Qxg4 23. Qd1 Qh3 24. Qh1 Qd7 25. b4 Na4 26. Rxc8 Rxc8 27. Rc1 Rxc1 28. Qxc1 Qh3 {Droht stark ...Dh2+.} 29. Qg1 {-5.92/24} (29. Nf1 {-3.76/28 ist eine bessere Verteidigung.} Qd7 30. b5) 29... Nc3 30. a3 Qh5 {Gewichteter Fehlerwert: Weiß=0.64/Schwarz=0.40 Verlustzug: Weiß=2 --- Gewinn verpasst: --- Schwarz=1 Fehler: Weiß=6 Schwarz=1 Ungenau: Weiß=2 Schwarz=1 OK: Weiß=6 Schwarz=6 Stark: Weiß=1 Schwarz=1} 0-1       

   [Event "Lichtenberger Sommer 2025"]  [Site "Berlin"]  [Date "2025.08.27"]  [Round "5"]  [White "Kellner, Rene"]  [Black "Bergmann, Rafael Antonio"]  [Result "0-1"]  [ECO "A23"]  [WhiteElo "1710"]  [BlackElo "1859"]  [WhiteFideId "-1"]  [PlyCount "138"]  [GameId "2215753394028557"]  [EventDate "2025.??.??"]  [SourceVersionDate "2022.11.27"]   1. c4 e5 2. Nc3 Nf6 3. g3 c6 4. Nf3 e4 5. Nd4 Qb6 6. e3 d5 7. cxd5 cxd5 8. Bg2 Be7 9. O-O Nbd7 10. d3 Nc5 11. dxe4 dxe4 12. a3 Bg4 13. Qc2 Rc8 14. b4 Nd3 15. f3 exf3 16. Bxf3 Bxf3 17. Rxf3 Nxc1 18. Rxc1 O-O 19. Qb2 Qc7 20. Rff1 Qe5 21. Qf2 Ng4 22. Qf4 Qxe3+ 23. Qxe3 Nxe3 24. Rfe1 Bf6 25. Nde2 Bxc3 26. Nxc3 Nf5 27. Nd5 Rxc1 28. Rxc1 Rd8 29. Nf4 Kf8 30. Rc7 Nd6 31. Kf1 Ke8 32. Nh5 Kf8 33. Nf4 a6 34. Kg2 g6 35. Kf3 h6 36. h4 h5 37. g4 hxg4+ 38. Kxg4 Ke8 39. Nd5 Rc8 40. Nf6+ Kf8 41. Rd7 Nc4 42. Rxb7 Nxa3 43. Ra7 Nc2 44. Rxa6 Nxb4 45. Rb6 Nd3 46. Rb7 Rc4+ 47. Kg5 Kg7 48. Ne8+ Kf8 49. Nf6 Ne5 50. Nd7+ Nxd7 51. Rxd7 Kg7 52. Ra7 Rc5+ 53. Kg4 Rf5 54. Rb7 Kh6 55. Rb8 Rf1 56. Rh8+ Kg7 57. Ra8 f5+ 58. Kg3 Rc1 59. Ra7+ Kh6 60. Ra8 Rc3+ 61. Kf4 Rh3 62. h5 Rh4+ 63. Ke5 Kxh5 64. Kf6 Rb4 65. Rh8+ Kg4 66. Kxg6 Rb6+ 67. Kf7 f4 68. Rg8+ Kf3 69. Re8 Kf2 0-1       

   [Event "Lichtenberger Sommer 2025"]  [Site "Berlin"]  [Date "2025.08.28"]  [Round "6.95"]  [White "Baumgaertner, Andre"]  [Black "Kellner, Rene"]  [Result "0-1"]  [Annotator "Dagni"]  [ECO "A84"]  [WhiteElo "1791"]  [BlackElo "1710"]  [WhiteFideId "-1"]  [PlyCount "122"]  [GameId "2216099109097484"]  [EventDate "2025.??.??"]  [SourceVersionDate "2022.11.27"]   1. d4 d5 2. c4 e6 3. Bf4 c6 4. e3 f5 5. Nc3 Nf6 6. cxd5 cxd5 7. a3 Bd6 8. Bg5 O-O 9. Nf3 Nc6 10. Rc1 Bd7 11. Bb5 Rc8 12. Bxc6 Bxc6 13. O-O h6 14. Bxf6 Qxf6 15. Ne2 g5 16. Ne1 g4 17. Nf4 Qh4 18. g3 Qf6 19. Ned3 Rf7 20. Nc5 Bxf4 21. exf4 h5 22. Re1 Re8 23. Re5 h4 24. Qe2 hxg3 25. fxg3 Rh7 26. Kg2 Qh6 27. Rh1 a6 28. Nxe6 Qh3+ 29. Kg1 Bb5 30. Qf2 Rc8 31. Nc5 b6 32. a4 Bc4 33. b3 bxc5 34. bxc4 Rb7 35. Re1 Rcb8 36. Qe3 Qh6 37. Qe5 dxc4 38. Qd5+ Kh8 39. Qxf5 cxd4 40. Qe5+ Kg8 41. Qd5+ Kf8 42. Qxc4 d3 43. Qc5+ Kg8 44. Qd5+ Kh8 45. Re6 Rb1+ 46. Kf2 R1b2+ 47. Ke1 Rb1+ 48. Kd2 R8b2+ 49. Kxd3 Qh7+ 50. f5 Rb3+ 51. Ke4 Rb4+ 52. Ke3 Qa7+ 53. Kd3 R1b3+ 54. Ke2 Rb2+ 55. Kd3 R4b3+ 56. Kc4 Qc7+ 57. Rc6 Rb4+ 58. Kc3 Qg7+ 59. f6 R2b3+ 60. Kd2 Qh6+ 61. Ke2 Qe3+ 0-1