[Event "ch-USA 2022"] [Date "2022.10.08"] [Round "4"] [White "Lenderman, Aleksandr"] [Black "Yoo, Christopher Woojin"] [Result "1-0"] [WhiteElo "2535"] [BlackElo "2563"] [Annotator "Shlyakhtenko,Robert"] [Variant "From Position"] [ECO "?"] [Opening "?"] [StudyName "2022 U.S. Championships"] [ChapterName "Lenderman, Aleksandr - Yoo, Christopher Woojin"] [ChapterURL "https://lichess.org/study/dfRDZs7P/s0eHmNja"] [FEN "5r1k/6p1/5q1p/p1QBp3/4P1bP/1P4P1/3R1P1K/8 b - - 0 41"] [SetUp "1"] [Orientation "white"] { [#] [%evp 0,58,96,146,149,149,149,149,160,156,161,302,302,337,340,348,348,348,220, 414,307,307,307,325,307,298,328,326,271,339,281,439,459,29985,29986,29995,712, 29975,413,624,510,537,538,514,549,535,546,1224,1224,1255,719,758,761,765,765, 822,805,1313,1562,2094,28177] } 41... g5? { A weakening move met with a precise refutation. } (41... Qf3! { held the position tactically. } 42. Qc1! (42. Qxa5 { showcases the beautiful point: } 42... Bh3!! 43. Kxh3 Qh1+ 44. Kg4 Qf3+ { , with perpetual check. }) 42... Rc8 { and Black has sufficient activity to defend. }) 42. hxg5 hxg5 43. Bc4!! { A great multi-faceted move. White targets the e5-pawn, opens the d-file for the rook, and gives himself the option of defending the king with Bf1-g2. Black's counterplay is instantly prevented. } 43... Rc8 44. Qxa5 Bf3 45. Kg1 g4 46. Rd5 Re8 47. Qd2 Bxe4 48. Rd6 Qg7 49. Rd8 Bc6 50. Rxe8+ Bxe8 51. Qd8 Qd7 52. Qh4+ Kg7 53. Qg5+ Kh7 54. Qxe5 { and White eventually converted the two-pawn advantage. } 54... Bg6 55. Bd5 Kh6 56. b4 Qa4 57. Qh8+ Kg5 58. Qd4 Qc2 59. Kg2 Qb1 60. Bc6 Kh6 61. Qxg4 Bd3 62. Qf4+ Kg7 63. Qd4+ Kf7 64. Bd5+ Kg6 65. Kh2 Qc2 66. b5 Qe2 67. b6 Qh5+ 68. Kg2 Qd1 69. Be4+ Bxe4+ 70. Qxe4+ { 1-0 White wins. } 1-0