[Event "Koppel Arena"]
[Site "http://chess-academy.net/DeFog7Xe"]
[Date "2026.01.24"]
[Round "-"]
[White "David_2014"]
[Black "RomanSereda"]
[Result "0-1"]
[UTCDate "2026.01.24"]
[UTCTime "17:50:14"]
[WhiteElo "1327"]
[BlackElo "1672"]
[WhiteRatingDiff "-4"]
[BlackRatingDiff "+3"]
[Variant "Standard"]
[TimeControl "420+0"]
[ECO "A40"]
[Opening "Horwitz Defense"]
[Termination "Normal"]
[Annotator "chess-academy.net"]

1. d4 { [%eval 0.15] [%clk 0:07:00] } 1... e6 { [%eval 0.38] [%clk 0:07:00] } { A40 Horwitz Defense } 2. Qd3? { (0.38 → -0.97) Mistake. Best move was e4. } { [%eval -0.97] [%clk 0:06:58] } (2. e4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 c5 6. O-O c4) 2... Qf6? { (-0.97 → 1.02) Mistake. Best move was d5. } { [%eval 1.02] [%clk 0:06:58] } (2... d5) 3. Qf3? { (1.02 → -1.48) Mistake. Best move was e4. } { [%eval -1.48] [%clk 0:06:55] } (3. e4 Nc6 4. Nf3 d5 5. Nc3 Bd7 6. h4 dxe4 7. Nxe4 Qg6 8. h5 Qf5 9. c3 h6) 3... Qxd4 { [%eval -0.61] [%clk 0:06:53] } 4. e3? { (-0.61 → -1.97) Mistake. Best move was e4. } { [%eval -1.97] [%clk 0:06:44] } (4. e4) 4... Qf6? { (-1.97 → -0.64) Mistake. Best move was Qb6. } { [%eval -0.64] [%clk 0:06:51] } (4... Qb6 5. e4) 5. c3? { (-0.64 → -1.91) Mistake. Best move was Nc3. } { [%eval -1.91] [%clk 0:06:40] } (5. Nc3) 5... Qxf3?! { (-1.91 → -1.40) Inaccuracy. Best move was d5. } { [%eval -1.4] [%clk 0:06:48] } (5... d5 6. Nd2) 6. gxf3?! { (-1.40 → -2.08) Inaccuracy. Best move was Nxf3. } { [%eval -2.08] [%clk 0:06:38] } (6. Nxf3 b6 7. Be2 Bb7 8. c4 Be7 9. Nc3 Nf6 10. O-O O-O 11. Nd2 d6 12. b3 a5) 6... Nc6 { [%eval -1.61] [%clk 0:06:40] } 7. Ne2 { [%eval -1.89] [%clk 0:06:36] } 7... Na5?! { (-1.89 → -0.96) Inaccuracy. Best move was d5. } { [%eval -0.96] [%clk 0:06:37] } (7... d5 8. Nd2 g6 9. f4 Bg7 10. h4 Nf6 11. b3 O-O 12. Bg2 e5 13. c4 e4 14. Ba3) 8. e4?! { (-0.96 → -1.58) Inaccuracy. Best move was Nd2. } { [%eval -1.58] [%clk 0:06:34] } (8. Nd2 Nc6) 8... Nc4?! { (-1.58 → -0.84) Inaccuracy. Best move was Ne7. } { [%eval -0.84] [%clk 0:06:35] } (8... Ne7 9. Bf4 d6 10. Nd2 e5 11. Be3 g6 12. f4 Nac6 13. O-O-O Bg7 14. fxe5 Nxe5 15. f4) 9. Bh3? { (-0.84 → -2.38) Mistake. Best move was Nd4. } { [%eval -2.38] [%clk 0:06:27] } (9. Nd4) 9... Ne5 { [%eval -2.1] [%clk 0:06:33] } 10. Bf1? { (-2.10 → -3.73) Mistake. Best move was Bg2. } { [%eval -3.73] [%clk 0:06:16] } (10. Bg2) 10... Nxf3+ { [%eval -3.22] [%clk 0:06:30] } 11. Kd1 { [%eval -3.91] [%clk 0:06:13] } 11... Ne5? { (-3.91 → -2.62) Mistake. Best move was Nf6. } { [%eval -2.62] [%clk 0:06:26] } (11... Nf6) 12. h4? { (-2.62 → -3.93) Mistake. Best move was Kc2. } { [%eval -3.93] [%clk 0:06:09] } (12. Kc2 Bc5) 12... h6? { (-3.93 → -2.52) Mistake. Best move was Nf6. } { [%eval -2.52] [%clk 0:06:23] } (12... Nf6 13. Bg2 b6 14. f4 Neg4 15. e5 Nd5 16. Rg1 h5 17. c4 Nge3+ 18. Bxe3 Nxe3+ 19. Kd2) 13. Rg1? { (-2.52 → -3.58) Mistake. Best move was Kc2. } { [%eval -3.58] [%clk 0:06:06] } (13. Kc2 Nf6 14. Bf4 Nc6 15. Nd2 e5 16. Be3 d5 17. Bh3 Bxh3 18. Rxh3 dxe4 19. Ng3 Nd5) 13... g5? { (-3.58 → -2.11) Mistake. Best move was Nf6. } { [%eval -2.11] [%clk 0:06:18] } (13... Nf6 14. Bf4) 14. hxg5 { [%eval -2.24] [%clk 0:06:03] } 14... hxg5 { [%eval -2.07] [%clk 0:06:16] } 15. Rxg5 { [%eval -2.52] [%clk 0:06:01] } 15... d6 { [%eval -2.1] [%clk 0:06:12] } 16. Nf4? { (-2.10 → -3.75) Mistake. Best move was Rg2. } { [%eval -3.75] [%clk 0:05:53] } (16. Rg2) 16... Rh1?! { (-3.75 → -2.91) Inaccuracy. Best move was Nf6. } { [%eval -2.91] [%clk 0:06:08] } (16... Nf6) 17. Nd3?? { (-2.91 → -7.96) Blunder. Best move was Nd2. } { [%eval -7.96] [%clk 0:05:33] } (17. Nd2 Nf6 18. Rg3 Nxe4 19. Nxe4 Rxf1+ 20. Ke2 Rh1 21. Nf6+ Ke7 22. Ng8+ Kd7 23. b3 a5) 17... Nxd3 { [%eval -7.77] [%clk 0:06:04] } 18. Bf4? { (-7.77 → -13.34) Mistake. Best move was Be3. } { [%eval -13.34] [%clk 0:05:30] } (18. Be3) 18... Rxf1+ { [%eval -12.75] [%clk 0:06:01] } 19. Kd2 { [%eval -14.77] [%clk 0:05:27] } 19... Nxf4 { [%eval -14.06] [%clk 0:05:58] } 20. Rg2 { [%eval -25.55] [%clk 0:05:23] } 20... Rh1 { [%eval -13.35] [%clk 0:05:53] } 21. Na3 { [%eval -20.09] [%clk 0:05:21] } 21... Nxg2 { [%eval -15.46] [%clk 0:05:51] } 22. Nc4 { [%eval -30.58] [%clk 0:05:18] } 22... Nf4 { [%eval -15.56] [%clk 0:05:49] } 23. Ne3 { [%eval -30.45] [%clk 0:05:15] } 23... Rh2 { [%eval -24.1] [%clk 0:05:44] } 24. Rg1 { [%eval -25.9] [%clk 0:05:10] } 24... Rxf2+ { [%eval -25.03] [%clk 0:05:43] } 25. Ke1 { [%eval -28.77] [%clk 0:05:07] } 25... Re2+ { [%eval -25.53] [%clk 0:05:41] } 26. Kf1 { [%eval -30.39] [%clk 0:05:05] } 26... e5 { [%eval -26.87] [%clk 0:05:36] } 27. Rg4?! { (-26.87 → Mate in 8) Checkmate is now unavoidable. Best move was Rxg8. } { [%eval #-8] [%clk 0:04:59] } (27. Rxg8 Bh3+) 27... Bxg4 { [%eval #-9] [%clk 0:05:33] } 28. Nxg4 { [%eval #-12] [%clk 0:04:55] } 28... Rxe4?! { (Mate in 12 → -31.57) Lost forced checkmate sequence. Best move was Rxb2. } { [%eval -31.57] [%clk 0:05:30] } (28... Rxb2 29. Ke1 Rxa2 30. Ne3 Re2+ 31. Kd1 Rxe3 32. Kc2 Nf6 33. Kb2 Nxe4 34. c4 O-O-O 35. Ka2) 29. Nf2 { [%eval -31.48] [%clk 0:04:53] } 29... Re3 { [%eval -30.74] [%clk 0:05:24] } 30. Nd1 { [%eval -75.16] [%clk 0:04:50] } 30... Rf3+ { [%eval -31.74] [%clk 0:05:22] } 31. Ke1 { [%eval -31.36] [%clk 0:04:47] } 31... Ng2+ { [%eval -27.39] [%clk 0:05:20] } 32. Ke2 { [%eval -30.56] [%clk 0:04:46] } 32... Rh3 { [%eval -29.24] [%clk 0:05:12] } 33. Nf2 { [%eval -30.92] [%clk 0:04:41] } 33... Nf4+ { [%eval -30.3] [%clk 0:05:09] } 34. Kf1 { [%eval -72.77] [%clk 0:04:37] } 34... Rh2 { [%eval -31.22] [%clk 0:05:05] } 35. Ng4 { [%eval -75.0] [%clk 0:04:28] } 35... Rg2 { [%eval -68.94] [%clk 0:05:02] } 36. Nf2?! { (-68.94 → Mate in 9) Checkmate is now unavoidable. Best move was Ne3. } { [%eval #-9] [%clk 0:04:25] } (36. Ne3 Rxb2 37. a3 Ra2 38. a4 Ne7 39. c4 O-O-O 40. Ke1 Re2+ 41. Kd1 Rxe3 42. Kc2 Ra3) 36... e4?! { (Mate in 9 → -25.98) Lost forced checkmate sequence. Best move was Ne7. } { [%eval -25.98] [%clk 0:04:59] } (36... Ne7 37. Ke1 Nf5 38. c4 e4 39. Kd2 Rxf2+ 40. Kc3 Nd3 41. c5 Rxb2 42. Kc4 Bg7 43. Kd5) 37. Nh1?! { (-25.98 → Mate in 6) Checkmate is now unavoidable. Best move was Nh3. } { [%eval #-6] [%clk 0:04:22] } (37. Nh3 Rg3) 37... e3 { [%eval #-5] [%clk 0:04:54] } 38. Nf2 { [%eval #-4] [%clk 0:04:19] } 38... Rxf2+ { [%eval #-3] [%clk 0:04:51] } 39. Ke1 { [%eval #-2] [%clk 0:04:17] } 39... Ng2+?! { (Mate in 2 → Mate in 5) Not the best checkmate sequence. Best move was Nd3+. } { [%eval #-5] [%clk 0:04:49] } (39... Nd3+ 40. Kd1 Rd2#) 40. Kd1 { [%eval #-5] [%clk 0:04:15] } 40... e2+?! { (Mate in 5 → Mate in 5) Not the best checkmate sequence. Best move was d5. } { [%eval #-5] [%clk 0:04:46] } (40... d5 41. a4 e2+ 42. Kc2 e1=Q+ 43. Kb3 Qa1 44. c4 Qxb2#) 41. Kc1 { [%eval #-1] [%clk 0:04:13] } 41... e1=Q# { [%clk 0:04:44] } { Black wins by checkmate. } 0-1


