[Event "Summer cup S2 0-1400 Arena"] [Site "https://lichess.org/wWS3W5zS"] [Date "2021.07.25"] [White "ryan-xu"] [Black "Jerryruijin1979"] [Result "0-1"] [UTCDate "2021.07.25"] [UTCTime "16:11:37"] [WhiteElo "971"] [BlackElo "1422"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+1"] [Variant "Standard"] [TimeControl "600+5"] [ECO "B02"] [Opening "Alekhine Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 Nf6 { B02 Alekhine Defense } 2. f3?! { (0.29 → -0.65) Inaccuracy. e5 was best. } (2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 c6 6. Nf3 Nd7) 2... e5 3. d4 exd4 4. Qxd4 c5? { (-0.63 → 0.56) Mistake. Nc6 was best. } (4... Nc6 5. Qf2 d5 6. Nc3 Bb4 7. Bd2 Bxc3 8. Bxc3 dxe4 9. Bb5) 5. Qd1?! { (0.56 → -0.21) Inaccuracy. Qe3 was best. } (5. Qe3 Be7 6. c4 O-O 7. Nc3 d6 8. Nge2 Nc6 9. b3 a6) 5... a6?! { (-0.21 → 0.73) Inaccuracy. d5 was best. } (5... d5 6. exd5 Nxd5 7. Ne2 Nc6 8. Nbc3 Ndb4 9. a3 Qxd1+ 10. Kxd1) 6. e5?! { (0.73 → 0.01) Inaccuracy. c4 was best. } (6. c4 d6) 6... Nh5? { (0.01 → 1.42) Mistake. Qe7 was best. } (6... Qe7 7. Qe2 Nd5 8. Qe4 Nb4 9. Na3 d6 10. exd6 Qxe4+ 11. fxe4 Bxd6 12. c3 N4c6 13. Nc4) 7. g4?? { (1.42 → -0.47) Blunder. Qe2 was best. } (7. Qe2) 7... Qh4+ 8. Ke2 Ng3+ 9. Kd2?? { (0.00 → -7.73) Blunder. hxg3 was best. } (9. hxg3 Qxh1 10. Kf2 Qh2+ 11. Bg2 h5 12. Nc3 Nc6 13. Nd5 Rb8 14. Bg5 d6 15. f4 hxg4) 9... Nxh1 10. Qe1 Qxh2+ 11. Ne2 d5 12. b3 d4 13. c3 dxc3+ 14. Nxc3 b5 15. a3 a5? { (-8.51 → -4.70) Mistake. h5 was best. } (15... h5 16. Kc2 hxg4 17. Bf4 Bf5+ 18. Kb2 Nf2 19. Bxh2 Nd3+ 20. Ka2 Nxe1 21. fxg4 Rxh2 22. gxf5) 16. b4? { (-4.70 → -9.19) Mistake. Nxb5 was best. } (16. Nxb5 Be7 17. Nc7+ Kf8 18. Kc2 Ra7 19. Nb5 Rb7 20. Bf4 Qf2 21. Qxf2 Nxf2 22. Nd6 Bxd6) 16... axb4 17. axb4 Rxa1 18. Nxb5 Qxe5 19. f4 Qd5+ 20. Ned4+ Kd7 21. Qh4 Ra2+ 22. Kd1?! { (-26.62 → Mate in 7) Checkmate is now unavoidable. Kc3 was best. } (22. Kc3 cxb4+) 22... cxd4 23. Qe1 Qb3# { Black wins by checkmate. } 0-1