[Event "141. Sparta Grand Prix"] [Site "https://lichess.org/bBI6Jo1F"] [Date "2023.02.21"] [White "Schachjueppchen"] [Black "Tenakel"] [Result "0-1"] [UTCDate "2023.02.21"] [UTCTime "18:22:07"] [WhiteElo "2150"] [BlackElo "2347"] [WhiteRatingDiff "-3"] [BlackRatingDiff "+10"] [Variant "Standard"] [TimeControl "600+1"] [ECO "E90"] [Opening "King's Indian Defense: Normal Variation, Rare Defenses"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 { E90 King's Indian Defense: Normal Variation, Rare Defenses } O-O 6. h3 e5 7. dxe5 dxe5 8. Qc2 Nc6 9. a3?! { (-0.26 → -1.19) Inaccuracy. Be3 was best. } (9. Be3 Nh5) 9... Nd4 10. Nxd4? { (-1.09 → -2.31) Mistake. Qd1 was best. } (10. Qd1 Be6 11. Rb1 Nh5 12. g4 Nf6 13. Be3 Ne8 14. Ng5 Bd7 15. Be2 Nd6 16. O-O) 10... exd4 11. Nd5 Nxe4 12. Bd3 Nc5 13. O-O Nxd3 14. Qxd3 Bf5 15. Qf3 c6 16. Nb4 Re8 17. Bf4 Qb6 18. Rfd1 a5 19. Nd3 Qb3 20. Rac1 Re6 21. Qg3 Rae8 22. Nc5 Qxg3 23. Bxg3 Re2 24. Nxb7 Rxb2 25. Nxa5?! { (-2.60 → -3.34) Inaccuracy. Nd6 was best. } (25. Nd6 Ree2 26. Nxf5 gxf5 27. Rb1 h5 28. Kf1 a4 29. Rxb2 Rxb2 30. Bd6 Rc2 31. Ke1 Rxc4) 25... d3 26. Nxc6 d2 27. Ra1 Rb6 28. Rxd2 Bxa1 29. Nb4 Bc3 30. Rd5 Bxb4 31. axb4 Rxb4 32. c5 Rc4 33. Bd6 h5 34. Rd1 h4 35. Ra1 Kh7 36. Ra7 Re1+ 37. Kh2 Rcc1 38. g3 Rh1+ 39. Kg2 g5 40. Rxf7+ Kg6 41. Rf8 Rhd1 42. gxh4?? { (-4.54 → Mate in 4) Checkmate is now unavoidable. Rg8+ was best. } (42. Rg8+ Kh7 43. Re8 Rg1+ 44. Kf3 Rc3+ 45. Ke2 Rc2+ 46. Kf3 Bxh3 47. Be5 Kg6 48. gxh4 Bg2+) 42... gxh4?? { (Mate in 4 → -4.57) Lost forced checkmate sequence. Be4+ was best. } (42... Be4+ 43. Rf3 Rg1+ 44. Kh2 Rh1+ 45. Kg2 Rcg1#) 43. Kf3?? { (-4.57 → Mate in 17) Checkmate is now unavoidable. Rg8+ was best. } (43. Rg8+ Kh7 44. Re8 Rg1+ 45. Kh2 Rh1+ 46. Kg2 Bxh3+ 47. Kf3 Rhg1 48. Be5 Rg8 49. Rxg8 Kxg8) 43... Rd3+ 44. Kf4 Rc4+ 45. Ke5 Re4# { Black wins by checkmate. } 0-1