[Event "1st Online CGP - Leg 4 Open"] [Site "https://lichess.org/u8FJmhwK"] [Date "2020.11.22"] [White "Sniperkiller303"] [Black "Aiskandar"] [Result "0-1"] [UTCDate "2020.11.22"] [UTCTime "06:21:20"] [WhiteElo "1927"] [BlackElo "1968"] [WhiteRatingDiff "-5"] [BlackRatingDiff "+6"] [Variant "Standard"] [TimeControl "600+0"] [ECO "E22"] [Opening "Nimzo-Indian Defense: Spielmann Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 { E22 Nimzo-Indian Defense: Spielmann Variation } c5 5. Nf3 O-O 6. a3?! { (0.12 → -0.87) Inaccuracy. e3 was best. } (6. e3 cxd4 7. Qxb4 Nc6 8. Qa3 dxc3 9. Qxc3 Ne4 10. Qc2 f5) 6... Bxc3+ 7. Qxc3 cxd4 8. Nxd4 e5 9. Nf3 d6 10. e3 Be6 11. b3 Nbd7 12. Be2 Qe7?! { (-1.02 → -0.29) Inaccuracy. b5 was best. } (12... b5 13. Ng5 Bf5 14. f3 bxc4 15. e4 Bg6 16. Bxc4 Rc8 17. O-O Nb6 18. Rd1 Qc7 19. Kh1) 13. O-O a5 14. Bd2 Ne4 15. Qc2 f5 16. Bd3 Ndc5 17. b4 Nxd3 18. Qxd3 a4 19. Rac1 Rac8 20. Rc2 g5 21. Rfc1?! { (-1.41 → -2.41) Inaccuracy. Bc1 was best. } (21. Bc1 Qf7 22. Nd2 Nxd2 23. Qxd2 Bxc4 24. Re1 Qe6 25. Bb2 g4 26. b5 Rc5 27. e4 f4) 21... g4 22. Ne1 Qh4 23. g3 Qh3 24. Ng2 Rf6 25. Nh4 Rh6 26. b5?? { (-2.13 → -8.30) Blunder. Qf1 was best. } (26. Qf1 Qxf1+ 27. Kxf1 Rxc4 28. Be1 b5 29. f3 Ng5 30. f4 Ne4 31. Bc3 Kf7 32. Kg1 Nxc3) 26... Ng5 27. Qxd6? { (-8.08 → Mate in 4) Checkmate is now unavoidable. Qf1 was best. } (27. Qf1 Rxh4 28. Qxh3 Rxh3 29. Bb4 f4 30. exf4 Nf3+ 31. Kf1 exf4 32. Bxd6 Bxc4+ 33. Rxc4 Rxc4) 27... Nf3+ 28. Nxf3 gxf3 29. Qxe6+ Rxe6 30. b6 Qg2# { Black wins by checkmate. } 0-1