[Event "2023 Feb 2nd Week Challenge"] [Site "https://lichess.org/HgL24IBe"] [Date "2023.02.18"] [White "Siddhan14"] [Black "yavyan"] [Result "0-1"] [UTCDate "2023.02.18"] [UTCTime "19:54:27"] [WhiteElo "1500"] [BlackElo "1174"] [WhiteRatingDiff "-434"] [BlackRatingDiff "+273"] [Variant "Standard"] [TimeControl "600+0"] [ECO "B00"] [Opening "Pirc Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 d6 { B00 Pirc Defense } 2. e5?? { (0.75 → -1.40) Blunder. d4 was best. } (2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O) 2... dxe5 3. d3 c6 4. Na3 Nd7 5. Nc4 f6 6. Ne3 Qa5+ 7. Ke2?! { (-0.63 → -1.37) Inaccuracy. c3 was best. } (7. c3 Qc7 8. Nf3 Nb6 9. g3 a5 10. Bg2 Nh6 11. O-O Nf7 12. d4 exd4 13. cxd4 e6) 7... Nc5 8. Nc4 Qb5? { (-1.80 → -0.40) Mistake. Qc7 was best. } (8... Qc7 9. Ke1 Be6 10. Be3 Rd8 11. Nd2 Nd7 12. a4 g6 13. a5 a6 14. g3 Nh6 15. Qe2) 9. Na3? { (-0.40 → -1.58) Mistake. Ke1 was best. } (9. Ke1) 9... Bg4+?? { (-1.58 → 2.16) Blunder. Qa4 was best. } (9... Qa4 10. Ke1 Be6 11. Nf3 g6 12. Nb1 Qa5+ 13. Nbd2 Rd8 14. a3 Qc7 15. b4 Nd7 16. Bb2) 10. Kd2?? { (2.16 → -6.69) Blunder. f3 was best. } (10. f3 Qa4) 10... O-O-O?? { (-6.69 → 4.09) Blunder. Qa5+ was best. } (10... Qa5+ 11. c3 Bxd1 12. Kxd1 Nxd3 13. Bxd3 Qd5 14. Kc2 Qxg2 15. Be3 Qxh1 16. Rd1 Nh6 17. f3) 11. Nxb5?? { (4.09 → 0.84) Blunder. Qxg4+ was best. } (11. Qxg4+ f5 12. Nxb5 fxg4 13. Nc3 Nf6 14. Ke1 e4 15. dxe4 Ncxe4 16. Nxe4 Nxe4 17. Bd3 Nf6) 11... cxb5?? { (0.84 → 5.80) Blunder. Ne4+ was best. } (11... Ne4+ 12. Ke1 Bxd1 13. Na3 Bh5 14. g4 Nxf2 15. Kxf2 Bxg4 16. Be3 Kb8 17. Nf3 e6 18. Be2) 12. d4?? { (5.80 → -3.52) Blunder. Qxg4+ was best. } (12. Qxg4+ e6 13. Ke1 a6 14. Qh3 f5 15. Qe3 Rd5 16. Nf3 Nd7 17. d4 Bd6 18. Qc3+ Kb8) 12... exd4?? { (-3.52 → 5.21) Blunder. Rxd4+ was best. } (12... Rxd4+ 13. Bd3 Bxd1 14. Kxd1 Nxd3 15. cxd3 Rxd3+ 16. Ke2 Rd5 17. Be3 Kb8 18. Kf3 e6 19. Ne2) 13. c3?? { (5.21 → -6.64) Blunder. Qxg4+ was best. } (13. Qxg4+ Kb8 14. Bxb5 e5 15. b4 h5 16. Qf3 Ne6 17. Bc4 Nc7 18. Rb1 Ne7 19. Ne2 Ned5) 13... Bxd1? { (-6.64 → -4.01) Mistake. dxc3+ was best. } (13... dxc3+ 14. Kxc3 Ne4+ 15. Kc2 Bxd1+ 16. Kb1 Bh5 17. Kc2 e5 18. Bxb5 Kb8 19. Be3 Bc5 20. Nf3) 14. Kxd1 dxc3+ 15. Ke1 cxb2 16. Bxb2 g5? { (-4.45 → -2.18) Mistake. a6 was best. } (16... a6 17. Rd1 e6 18. Rxd8+ Kxd8 19. g3 Ne7 20. Nf3 Nc6 21. Nd4 Na4 22. Ba1 Nxd4 23. Bxd4) 17. Rd1?! { (-2.18 → -3.13) Inaccuracy. Bxb5 was best. } (17. Bxb5 e5 18. Rc1 b6 19. Nf3 h5 20. Ke2 Nh6 21. Nd2 Kb8 22. Nb3 Nxb3 23. axb3 Nf5) 17... Na4 18. Rxd8+ Kxd8 19. Ba1 e6?! { (-2.69 → -1.73) Inaccuracy. a6 was best. } (19... a6 20. Nf3 h6 21. Bd3 e5 22. h4 Bg7 23. Bc2 Ne7 24. Nd2 Kc7 25. Ne4 g4 26. Ke2) 20. Bxf6+?? { (-1.73 → -5.53) Blunder. Bxb5 was best. } (20. Bxb5 Bb4+ 21. Ke2 Nc3+ 22. Bxc3 Bxc3 23. Nf3 Ne7 24. Rb1 Nd5 25. Bc4 g4 26. Nh4 b6) 20... Nxf6 21. a3 Nb2 22. a4 bxa4 23. Bc4 e5 24. Ne2 Nxc4 25. Nc1 e4 26. Ne2 Bb4+ 27. Kf1 Bc5 28. Ke1 Re8 29. Kd1 a3 30. Re1 a2 31. Rh1? { (-9.12 → Mate in 4) Checkmate is now unavoidable. Kc2 was best. } (31. Kc2 e3 32. f4 gxf4 33. Ra1 Nd5 34. Kb3 Nd2+ 35. Kxa2 Kc7 36. Kb2 Nb4 37. Rd1 Re4) 31... a1=Q+ 32. Kc2 Qxh1 33. Kb3 Qxh2 34. Kxc4 Ba3 35. Kd4 Qxg2 36. Ke3 Qg3+?! { (Mate in 4 → -11.93) Lost forced checkmate sequence. Bb4 was best. } (36... Bb4 37. Nc3 Bxc3 38. Ke2 Qh1 39. f3 Qxf3#) 37. Kd2?! { (-11.93 → Mate in 5) Checkmate is now unavoidable. fxg3 was best. } (37. fxg3 Bc5+ 38. Kd2 h5 39. Nc1 Bd6 40. Ne2 a5 41. Kc1 Kd7 42. Kb2 a4 43. Ka2 e3) 37... Qxf2 38. Kd1 e3 39. Nd4 Qf1+ 40. Kc2 Bc5 41. Ne2 Qxe2+ 42. Kb3 g4 43. Ka4 g3 44. Ka5 g2 45. Ka4 g1=Q 46. Ka5 Qa1# { Black wins by checkmate. } 0-1