[Event "Sanmita's Study: Round 4"] [Site "https://lichess.org/study/4OU3OCiR/9GwAwfuB"] [Date "2023.02.19"] [White "?"] [Black "?"] [Result "*"] [UTCDate "2023.02.19"] [UTCTime "18:51:56"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "A84"] [Opening "Dutch Defense: Rubinstein Variation"] [Termination "Unterminated"] [Annotator "lichess.org"] 1. d4 e6 2. c4 f5 3. Nc3 { A84 Dutch Defense: Rubinstein Variation } Nf6 4. g3 d5 5. Bg2 c6 6. b3 Bd6 7. Bb2 O-O 8. Nf3 Nbd7 9. O-O Ne4 10. Nd2 Ndf6 11. f3?! { (0.12 → -0.91) Inaccuracy. Nf3 was best. } (11. Nf3 b6) 11... Nxg3? { (-0.91 → 0.68) Mistake. Nxc3 was best. } (11... Nxc3 12. Bxc3 f4 13. Qe1 Nh5 14. g4 Nf6 15. c5 Bb8 16. b4 Nd7 17. b5 Bc7 18. a4) 12. hxg3 Bxg3 13. e3 Ng4?? { (1.18 → 4.25) Blunder. f4 was best. } (13... f4 14. Ne2 Nh5 15. Nxg3 Nxg3 16. Re1 Rf6 17. Nf1 Nh5 18. Bc1 e5 19. exf4 exf4 20. Re5) 14. fxg4 Qh4 15. Nf3 Qxg4 16. Ne2 f4 17. exf4 Bxf4 18. Nxf4 Rxf4 19. Ne5 Qg5 20. Rxf4 Qxf4 21. Qf3 Qg5?? { (6.06 → Mate in 2) Checkmate is now unavoidable. Qxf3 was best. } (21... Qxf3 22. Bxf3 b6 23. Bg2 Ba6 24. cxd5 cxd5 25. Bh3 Re8 26. Ba3 Bf1 27. Rxf1 h5 28. Bg4) 22. Qf7+ *