[Event "Las Vegas National Open 2023"] [Site "Las Vegas"] [Date "2023.06.18"] [Round "9.3"] [White "Vasif Durarbayli"] [Black "Brandon Jacobson"] [Result "1-0"] [Annotator "Lang, JJ"] [Variant "Standard"] [ECO "C79"] [Opening "Ruy Lopez: Morphy Defense, Steinitz Deferred"] [Source "https://lichess.org/study/nvFfMnzT/ZsmRX9ae"] [Orientation "white"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Nf6 6. Re1 Bd7 7. c3 g6 8. d4 Bg7 9. h3 O-O 10. Bc2 Re8 11. Nbd2 a5 12. Nf1 a4 13. d5 Nb8 14. Bg5 h6 15. Be3 b5 16. Ng3 c6 17. dxc6 Bxc6 18. Qd2 Kh7 19. Rad1 Bf8 20. Nh2 Nbd7 21. Rf1 Qe7 22. f4 exf4 23. Rxf4 Ne5 24. Rdf1 Bg7 25. Bd4 Kg8 26. Qf2 Nfd7 27. Nf3 Rf8 28. Nh4 Kh7 29. Kh1 Rg8 30. a3 Raf8 31. Bb1 Qg5 32. Ne2 Qe7 33. Nf3 Nxf3 34. Bxg7 Rxg7 35. Qxf3 Ne5 36. Qf2 Bd7 37. Nd4 g5 38. Rf6 Rg6 39. Rxg6 Kxg6 40. Ba2 Kg7 41. Qg3 Ng6 42. Nf5+ Bxf5 43. exf5 Qf6 44. Qd3 Nf4 45. Qxb5 d5 46. Qxa4 { The game has remained equal (but by no means dull) until now. } 46... Ne2 { The first inaccuracy. } (46... Rb8 47. Rf2 Nd3 48. Rd2 { would keep White tied down. } 48... Nxb2 49. Qa7 Re8 50. Rxd5 Qxc3 { keeps Black roughly equal through the complications. }) 47. Rf3 Qe5?! 48. f6+ { This shift considerably weakens Black's king. } 48... Kh8 49. Bb1 Rg8 { The alternatives were grim, but this loses. } (49... Ng3+ { would force } 50. Rxg3 Qxg3 51. Qc2 { after which Black can try } 51... Qe1+ 52. Kh2 Qe5+ 53. g3 Qe4 54. Qxe4 dxe4 55. Bxe4 Rd8 { when White has more than enough pawns to win. }) 50. Qg4 (50. Qc2 Rg6 51. Qd2 { and while threat of 52. Re3 can be met, the knight will remain vulnerable on other squares too. } 51... d4 (51... Rxf6 52. Rxf6 Ng3+ 53. Kg1 Qxf6 54. Qd3) 52. Bxg6 $18) 50... Nf4 51. Qf5 Qe1+ 52. Kh2 Rg6 53. Bd3 Qd2 54. Bf1 Qxb2 55. Qc8+ Rg8 56. Qc7 Qxa3 (56... Ng6 { would allow Black to suffer on. } 57. Qxf7?? Ne5 { is the point. When Black allows the f-pawn to fall, it's game over. }) 57. Qxf7 Qd6 58. g3 Qb6 59. Qd7 Ng6 60. Qf5 Qd6 61. Bd3 Nf8 62. Re3 Qb6 63. Re8 Qb2+ 64. Bc2 Qxc3 65. f7 { 1-0 White wins. } 1-0