[Event "Polgar Challenge"] [Site ""] [Date "2021.04.10"] [Round "15"] [White "Keymer,Vincent"] [Black "Praggnanandhaa R"] [Result "1-0"] [WhiteElo "2591"] [BlackElo "2608"] [Variant "Standard"] [TimeControl "-"] [ECO "E62"] [Opening "King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3?! { (0.62 → 0.00) Inaccuracy. e4 was best. } (4. e4 c5 5. d4 cxd4 6. Nxd4 Nc6 7. Be3 Ng4 8. Qxg4 Nxd4) 4... O-O 5. Bg2 d6?! { (0.00 → 0.60) Inaccuracy. c5 was best. } (5... c5 6. O-O d5 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. d3 Nc6 10. Be3) 6. d4 Nc6 7. O-O e5 { E62 King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System } 8. dxe5 dxe5 9. Bg5 h6 10. Qxd8 Rxd8 11. Bxf6 Bxf6 12. Nd5 Kg7 13. Nxc7 Rb8 14. Nd5 e4 15. Nd2 e3 16. Nxf6 exd2 17. Nd5 Bg4 18. f3 Be6 19. e4 Na5 20. Rfd1 Nxc4 21. b3 Bxd5 22. exd5 Ne3 23. Rxd2 Rxd5 24. Rxd5 Nxd5 25. Rc1 Nf6 26. f4 Ne8 27. Kf2 b6 28. Bf3 Rd8 29. Ke3 Kf8 30. Rc4 Nd6 31. Rc7 Nf5+ 32. Ke4 a5 33. Bg4 Re8+ 34. Kd3 Rd8+ 35. Kc3 Ne3 36. Bf3 Rd6 37. a4 h5 38. b4 axb4+ 39. Kxb4 Rd2 40. Kb5 Rb2+ 41. Ka6 Rxh2 42. Kxb6 Rh3? { (0.89 → 2.59) Mistake. h4 was best. } (42... h4 43. Rc3) 43. Rc3 Nf5 44. a5 Rxg3 45. a6 Ne7?? { (2.38 → 10.25) Blunder. Rg1 was best. } (45... Rg1) 46. a7 Rxf3?! { (10.80 → Mate in 10) Checkmate is now unavoidable. Kg7 was best. } (46... Kg7 47. a8=Q) 47. a8=Q+ { Black resigns. } 1-0