[Event "Koltanowski Arena"]
[Site "http://chess-academy.net/n6AWjB3P"]
[Date "2026.02.05"]
[Round "-"]
[White "Leon_L"]
[Black "ceavdarialexandr"]
[Result "0-1"]
[UTCDate "2026.02.05"]
[UTCTime "17:32:04"]
[WhiteElo "1256"]
[BlackElo "1236"]
[WhiteRatingDiff "-40"]
[BlackRatingDiff "+31"]
[Variant "Standard"]
[TimeControl "420+0"]
[ECO "C40"]
[Opening "King's Knight Opening"]
[Termination "Normal"]
[Annotator "chess-academy.net"]

1. Nf3 { [%eval -0.02] [%clk 0:07:00] } 1... e5? { (-0.02 → 1.27) Mistake. Best move was e6. } { [%eval 1.27] [%clk 0:07:00] } (1... e6 2. c4 Nf6 3. d4 b6 4. a3 Bb7 5. Nc3 d5 6. Bf4) 2. e4? { (1.27 → 0.22) Mistake. Best move was Nxe5. } { [%eval 0.22] [%clk 0:06:55] } { C40 King's Knight Opening } (2. Nxe5 d5) 2... Bd6?! { (0.22 → 1.21) Inaccuracy. Best move was Nc6. } { [%eval 1.21] [%clk 0:06:58] } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5) 3. d4?! { (1.21 → 0.66) Inaccuracy. Best move was Bc4. } { [%eval 0.66] [%clk 0:06:51] } (3. Bc4 Nc6) 3... f6? { (0.66 → 2.82) Mistake. Best move was exd4. } { [%eval 2.82] [%clk 0:06:55] } (3... exd4 4. Bc4) 4. Nh4? { (2.82 → 1.49) Mistake. Best move was Bc4. } { [%eval 1.49] [%clk 0:06:43] } (4. Bc4 Nc6) 4... Bb4+? { (1.49 → 3.55) Mistake. Best move was g6. } { [%eval 3.55] [%clk 0:06:50] } (4... g6 5. Nf3) 5. Ke2?? { (3.55 → -1.35) Blunder. Best move was c3. } { [%eval -1.35] [%clk 0:06:36] } (5. c3) 5... b6? { (-1.35 → 0.92) Mistake. Best move was exd4. } { [%eval 0.92] [%clk 0:06:46] } (5... exd4) 6. c3?! { (0.92 → 0.25) Inaccuracy. Best move was a3. } { [%eval 0.25] [%clk 0:06:29] } (6. a3 Bf8) 6... Ba5?? { (0.25 → 3.25) Blunder. Best move was Bf8. } { [%eval 3.25] [%clk 0:06:44] } (6... Bf8) 7. b4 { [%eval 2.95] [%clk 0:06:22] } 7... Ba6+? { (2.95 → 4.21) Mistake. Best move was Bxb4. } { [%eval 4.21] [%clk 0:06:33] } (7... Bxb4) 8. Ke1 { [%eval 3.93] [%clk 0:06:17] } 8... f5?? { (3.93 → 7.00) Blunder. Best move was exd4. } { [%eval 7.0] [%clk 0:06:27] } (8... exd4 9. bxa5) 9. bxa5?? { (7.00 → -0.67) Blunder. Best move was Qh5+. } { [%eval -0.67] [%clk 0:06:15] } (9. Qh5+) 9... bxa5?? { (-0.67 → 8.51) Blunder. Best move was Qxh4. } { [%eval 8.51] [%clk 0:06:25] } (9... Qxh4) 10. dxe5?? { (8.51 → 0.66) Blunder. Best move was Qh5+. } { [%eval 0.66] [%clk 0:06:10] } (10. Qh5+) 10... Qe7?? { (0.66 → 6.98) Blunder. Best move was Qxh4. } { [%eval 6.98] [%clk 0:06:19] } (10... Qxh4 11. exf5 Qe4+ 12. Be3 Bxf1 13. Qh5+ Kd8 14. Kxf1 Qxe5 15. Qf3 Qb5+ 16. Kg1 Nc6 17. Nd2) 11. Nf3? { (6.98 → 5.18) Mistake. Best move was Bxa6. } { [%eval 5.18] [%clk 0:06:04] } (11. Bxa6 Nxa6) 11... a4?? { (5.18 → 8.87) Blunder. Best move was Bxf1. } { [%eval 8.87] [%clk 0:06:03] } (11... Bxf1 12. Ba3 Qe6 13. exf5 Qxf5 14. Kxf1 Nc6 15. Nbd2 Nge7 16. Nb3 O-O 17. Nbd4 Nxd4 18. cxd4) 12. Bg5? { (8.87 → 6.16) Mistake. Best move was Bxa6. } { [%eval 6.16] [%clk 0:05:57] } (12. Bxa6 Nxa6 13. exf5 Nc5 14. Bg5 Qf7 15. Qd4 d6 16. g4 Ne7 17. Nbd2 Qd5 18. Bxe7 Qxd4) 12... Qf7 { [%eval 6.92] [%clk 0:05:53] } 13. Bc1? { (6.92 → 4.88) Mistake. Best move was exf5. } { [%eval 4.88] [%clk 0:05:51] } (13. exf5 Qxf5) 13... fxe4? { (4.88 → 6.23) Mistake. Best move was Bxf1. } { [%eval 6.23] [%clk 0:05:42] } (13... Bxf1) 14. Nbd2?? { (6.23 → 0.45) Blunder. Best move was Ng5. } { [%eval 0.45] [%clk 0:05:41] } (14. Ng5 Qf5 15. Qd5 c6 16. Qxe4 Ne7 17. Qxf5 Nxf5 18. Ba3 Bxf1 19. Kxf1 Na6 20. Nd2 Nc7) 14... exf3 { [%eval 0.81] [%clk 0:05:31] } 15. gxf3? { (0.81 → -1.02) Mistake. Best move was Nxf3. } { [%eval -1.02] [%clk 0:05:36] } (15. Nxf3 Bxf1) 15... Qe7?? { (-1.02 → 2.03) Blunder. Best move was Bxf1. } { [%eval 2.03] [%clk 0:05:30] } (15... Bxf1 16. Kxf1 Nc6 17. Qxa4 Nge7 18. Ba3 O-O 19. Qb3 Rab8 20. Qxf7+ Rxf7 21. Bxe7 Rxe7 22. Kg2) 16. Nb1?? { (2.03 → -2.03) Blunder. Best move was f4. } { [%eval -2.03] [%clk 0:05:21] } (16. f4 Bxf1 17. Kxf1 Nh6 18. Qxa4 O-O 19. Ba3 d6 20. Re1 Qh4 21. Rg1 Rxf4 22. Qe8+ Rf8) 16... Qxe5+ { [%eval -1.68] [%clk 0:05:25] } 17. Qe2?? { (-1.68 → -11.26) Blunder. Best move was Be3. } { [%eval -11.26] [%clk 0:05:13] } (17. Be3 Bxf1) 17... Bxe2 { [%eval -11.0] [%clk 0:05:23] } 18. Bxe2 { [%eval -11.27] [%clk 0:05:10] } 18... Nh6 { [%eval -10.45] [%clk 0:05:17] } 19. c4 { [%eval -18.65] [%clk 0:04:59] } 19... Kd8 { [%eval -14.97] [%clk 0:05:15] } 20. Kd1 { [%eval -17.97] [%clk 0:04:49] } 20... Re8 { [%eval -16.55] [%clk 0:05:09] } 21. a3?! { (-16.55 → Mate in 1) Checkmate is now unavoidable. Best move was Bd3. } { [%eval #-1] [%clk 0:04:47] } (21. Bd3 Qxa1) 21... Qxe2# { [%clk 0:05:07] } { Black wins by checkmate. } 0-1


