[Event "136th Nebula Academy"] [Site "https://lichess.org/wBwjXK0N"] [Date "2022.12.04"] [White "Aanya_Nidhi"] [Black "Ishaan1404"] [Result "0-1"] [UTCDate "2022.12.04"] [UTCTime "13:15:35"] [WhiteElo "1322"] [BlackElo "1771"] [WhiteRatingDiff "-1"] [BlackRatingDiff "+2"] [Variant "Standard"] [TimeControl "600+0"] [ECO "C47"] [Opening "Four Knights Game"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 { C47 Four Knights Game } 4. d3 h6 5. a4 Bb4 6. Bd2 Bc5 7. d4?? { (-0.20 → -2.68) Blunder. Nd5 was best. } (7. Nd5 a5) 7... exd4 8. Nb5? { (-2.93 → -5.18) Mistake. Nd5 was best. } (8. Nd5 Nxe4) 8... a6 9. b4 Bxb4 10. Bxb4 Nxb4 11. Rb1?! { (-4.62 → -7.11) Inaccuracy. Qd2 was best. } (11. Qd2 Nc6 12. Nbxd4 Nxe4 13. Qe3 O-O 14. Nxc6 bxc6 15. Bd3 Nf6 16. O-O d6 17. Nh4 Re8) 11... axb5 12. Rxb4 Rxa4? { (-6.99 → -3.79) Mistake. c5 was best. } (12... c5 13. Bxb5) 13. Rxb5? { (-3.79 → -6.54) Mistake. Rxa4 was best. } (13. Rxa4 bxa4 14. Qxd4 O-O 15. e5 Qe7 16. Be2 Nh7 17. Qxa4 Ng5 18. O-O Nxf3+ 19. Bxf3 Qxe5) 13... Nxe4?? { (-6.54 → -0.69) Blunder. O-O was best. } (13... O-O 14. c4) 14. Re5+ Kf8 15. Rxe4 c5 16. c3? { (-0.57 → -2.07) Mistake. Bd3 was best. } (16. Bd3 Qa5+) 16... Qa5 17. Qe2?? { (-1.89 → -10.50) Blunder. Bd3 was best. } (17. Bd3 Ra1 18. Bb1 d5 19. Re5 Qb5 20. Nd2 dxc3 21. Nb3 Rxb1 22. Qxb1 c4 23. Qa1 cxb3) 17... Qxc3+ 18. Nd2 Ra1+ 19. Qd1 Rxd1+ 20. Kxd1 d5 21. Nb1 Qb3+ 22. Ke1 Qxb1+ 23. Ke2 Qxe4+?! { (Mate in 5 → -24.36) Lost forced checkmate sequence. dxe4 was best. } (23... dxe4 24. Kd2 Qb2+ 25. Kd1 e3 26. fxe3 dxe3 27. Bc4 Qd2#) 24. Kd1 Bf5 25. f3 Qc2+ 26. Ke1 Ke7?! { (Mate in 5 → -23.12) Lost forced checkmate sequence. Qc1+ was best. } (26... Qc1+ 27. Ke2 Bd7 28. Kf2 Qe3+ 29. Kg3 Qe1+ 30. Kf4 g5#) 27. Ba6?! { (-23.12 → Mate in 3) Checkmate is now unavoidable. Be2 was best. } (27. Be2 Qc1+) 27... Ra8 28. Rf1 Rxa6 29. Rf2 Ra1# { Black wins by checkmate. } 0-1