[Event "National Schools Online Chess Championship 2021 - Under 13 Open - Under 13 Open"] [Site "India"] [Date "2021.07.09"] [Round "3.160"] [White "Maiti, Shrutartha"] [Black "Nag, Anuranan"] [Result "1-0"] [WhiteElo "521"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "D20"] [Opening "Queen's Gambit Accepted: Old Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. c4 dxc4 3. e3 { D20 Queen's Gambit Accepted: Old Variation } Nf6 4. Nc3 e6 5. Bxc4 Bb4?! { (0.12 → 0.86) Inaccuracy. c5 was best. } (5... c5 6. Nf3 cxd4 7. exd4 Nc6 8. O-O Be7 9. a3 O-O 10. Re1) 6. Qc2?! { (0.86 → 0.24) Inaccuracy. a3 was best. } (6. a3 Bxc3+ 7. bxc3 O-O 8. Bd3 b6 9. e4 Bb7 10. f3 c5) 6... O-O 7. Nf3 Nc6 8. O-O b6 9. Rd1 Bb7 10. a3 Bd6?? { (0.71 → 3.46) Blunder. Bxc3 was best. } (10... Bxc3 11. Qxc3) 11. e4 Na5?! { (3.55 → 5.03) Inaccuracy. Be7 was best. } (11... Be7) 12. Bd3? { (5.03 → 2.92) Mistake. Ba2 was best. } (12. Ba2 Nd7) 12... Be7? { (2.92 → 4.68) Mistake. c5 was best. } (12... c5 13. dxc5 bxc5 14. Be2 e5 15. Qa4 Nc6 16. Ba6 Na5 17. Bxb7 Nxb7 18. Bg5 h6 19. Bh4) 13. e5?! { (4.68 → 3.12) Inaccuracy. b4 was best. } (13. b4 Nc6) 13... Nd5 14. Bxh7+ Kh8 15. Be4?! { (3.45 → 2.56) Inaccuracy. Ne4 was best. } (15. Ne4 Qe8 16. Nfg5 f5 17. exf6 gxf6 18. Nxe6 Qh5 19. Rd3 Rf7 20. Rh3 Qxh3 21. gxh3 Rxh7) 15... Nxc3 16. bxc3 Bxe4 17. Qxe4 c5?? { (2.54 → 6.46) Blunder. Nb3 was best. } (17... Nb3 18. Rb1) 18. Qg4 cxd4 19. Qh5+?! { (7.08 → 4.40) Inaccuracy. Bg5 was best. } (19. Bg5 Nc6 20. cxd4 Re8 21. Bxe7 Nxe7 22. Ng5 Kg8 23. Qh5 Ng6 24. d5 Qxg5 25. Qxg5 exd5) 19... Kg8 20. Rxd4?! { (6.30 → 4.60) Inaccuracy. Ng5 was best. } (20. Ng5 Bxg5 21. Bxg5 d3 22. Bxd8 Raxd8 23. Qg4 Nb3 24. Rab1 Nc5 25. Qf3 d2 26. Rb2 Rd3) 20... Qc7?! { (4.60 → 6.85) Inaccuracy. Nb3 was best. } (20... Nb3 21. Rxd8) 21. Bg5 Bxg5? { (7.11 → Mate in 8) Checkmate is now unavoidable. f6 was best. } (21... f6) 22. Nxg5 Rfd8 23. Qh7+?! { (Mate in 6 → 16.43) Lost forced checkmate sequence. Rf4 was best. } (23. Rf4 Rd1+ 24. Rxd1 f6 25. Qh7+ Kf8 26. Rxf6+ gxf6 27. Qh8+ Ke7 28. exf6#) 23... Kf8 24. Qh8+ Ke7 25. Qxg7 Ke8 26. Qg8+ Ke7 27. Qxf7# { White wins by checkmate. } 1-0