[Event "matekp20 simul"] [Site "https://lichess.org/PfehcbFJ"] [Date "2021.03.06"] [White "matekp20"] [Black "Sebchez"] [Result "1-0"] [UTCDate "2021.03.06"] [UTCTime "21:17:37"] [WhiteElo "1500"] [BlackElo "1593"] [Variant "Standard"] [TimeControl "1800+10"] [ECO "D35"] [Opening "Queen's Gambit Declined: Exchange Variation, Positional Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. cxd5 exd5 5. Bg5 { D35 Queen's Gambit Declined: Exchange Variation, Positional Variation } Bb4 6. Qa4+ Nc6 7. e3 Bd7 8. Qc2?! { (0.76 → 0.10) Inaccuracy. Qb3 was best. } (8. Qb3 Bxc3+ 9. Qxc3 h6 10. Bxf6 Qxf6 11. Be2 O-O 12. Nf3 Rfc8) 8... O-O?! { (0.10 → 0.72) Inaccuracy. h6 was best. } (8... h6 9. Bxf6 Qxf6 10. Nf3 O-O 11. Qb3 Qd6 12. a3 Ba5 13. Rc1 Ne7 14. Bd3 Bg4 15. Ne5) 9. Bd3 h6 10. Bh4 Re8 11. Ne2 Qe7 12. O-O Qd6?? { (0.55 → 4.57) Blunder. Bxc3 was best. } (12... Bxc3 13. Qxc3 g5 14. Bg3 Nb4 15. Be5 Nxd3 16. Qxd3 Ne4 17. Ng3 f6 18. Bxc7 Bc6 19. Nxe4) 13. a3?? { (4.57 → 1.80) Blunder. Nb5 was best. } (13. Nb5 Qe7) 13... Bxc3 14. Nxc3 a6 15. Bxf6 gxf6 16. Bf5 Kh8 17. Bxd7 Qxd7 18. Qe2 Rg8? { (1.37 → 2.65) Mistake. Qf5 was best. } (18... Qf5 19. Qd1 Rg8 20. Ne2 Qf3 21. Ng3 Qxd1 22. Raxd1 Ne7 23. Rd3 Kg7 24. Rb3 Rab8 25. Rc1) 19. Qh5 Rg5 20. Qxh6+ Kg8 21. Qxf6 Rg6? { (2.30 → 4.10) Mistake. Qg4 was best. } (21... Qg4 22. g3 Rf5 23. Qh6 Rh5 24. Qf4 Qxf4 25. gxf4 Kg7 26. Kg2 Na5 27. Rh1 Rah8 28. Rac1) 22. Qf3 Ne7 23. Kh1?! { (4.45 → 2.94) Inaccuracy. Ne2 was best. } (23. Ne2 c6 24. Ng3 Kg7 25. Rfe1 Rh8 26. e4 Kf8 27. exd5 Nxd5 28. Re5 Qg4 29. Qxg4 Rxg4) 23... Nf5?? { (2.94 → 6.50) Blunder. Kg7 was best. } (23... Kg7) 24. Qxd5 Qc8 25. Qe4 Nh6 26. Nd5 Re6 27. Qh4 Kg7 28. Nf4 Rb6 29. b4 Qf5 30. e4 Qh7 31. e5 Nf5 32. Qxh7+ Kxh7 33. d5 Re8 34. Rfe1 Ng7 35. Rad1 Kh6 36. g3 Kg5 37. Kg2 Kf5 38. Nd3 Rd8 39. Nc5 Kg6 40. f4 Kf5 41. Kf3 a5 42. g4+ Kg6 43. Rd4 Kh7 44. h4 Ne6 45. dxe6 Rxd4 46. e7 axb4 47. e8=Q bxa3?! { (13.94 → Mate in 8) Checkmate is now unavoidable. Ra6 was best. } (47... Ra6 48. Ke3) 48. Qxf7+ Kh8 49. Ne6?! { (Mate in 7 → 23.04) Lost forced checkmate sequence. e6 was best. } (49. e6 Rb3+ 50. Nxb3 Rd3+ 51. Re3 Rd1 52. e7 Rf1+ 53. Kg2 Rg1+ 54. Kxg1 a2 55. e8=Q#) 49... Rxe6 50. Qxe6 Rd2?! { (25.39 → Mate in 7) Checkmate is now unavoidable. c5 was best. } (50... c5 51. Qc8+) 51. Qf7?! { (Mate in 7 → 16.62) Lost forced checkmate sequence. f5 was best. } (51. f5 Rd3+ 52. Ke2 a2 53. f6 Re3+ 54. Kxe3 a1=Q 55. Rxa1 c5 56. Qf7 c4 57. Ra8#) 51... b5?! { (16.62 → Mate in 6) Checkmate is now unavoidable. c5 was best. } (51... c5 52. Ke3) 52. e6 a2 53. e7 Rb2 54. e8=Q# { White wins by checkmate. } 1-0