[Event "ch-USA 2022"] [Date "2022.10.08"] [Round "4"] [White "Niemann, Hans Moke"] [Black "Caruana, Fabiano"] [Result "0-1"] [WhiteElo "2699"] [BlackElo "2763"] [Annotator "Shlyakhtenko,Robert"] [Variant "From Position"] [ECO "?"] [Opening "?"] [StudyName "2022 U.S. Championships"] [ChapterName "Niemann, Hans Moke - Caruana, Fabiano"] [ChapterURL "https://lichess.org/study/dfRDZs7P/5hHvQUyF"] [FEN "8/R4p2/2p2k2/4r3/1Pn1PpBp/5P2/8/5K2 w - - 0 47"] [SetUp "1"] [Orientation "white"] { [#] [%evp 0,61,-140,-149,-134,-149,-149,-154,-154,-153,-160,-162,-105,-105,-112, -112,-112,-120,-100,-108,-104,-104,-104,-104,-79,-79,-79,-79,-79,-79,-71,-72, -77,-69,-80,-80,-80,-101,-63,-63,-63,-108,-113,-126,-136,-141,-151,-143,-186, -164,-207,-277,-350,-271,-271,-399,-283,-507,-507,-507,-507,-507,-507,-507] } 47. Kg2?? { A surprising mistake for a player of Niemann's caliber. He spent 15 minutes on this decision -- surely it was enough time to calculate a forced line? } (47. Ra6! Ne3+ 48. Kf2 Nxg4+ 49. fxg4 Rxe4 50. Kf3! (50. Rxc6+ { is also possible. White just needs to demonstrate a working knowledge of Rook endgame theory. } 50... Kg5 51. Rc7 Rxb4 (51... Kg6 52. b5 Rb4 53. Rc5 { also holds, as does }) (51... f6 52. Rg7+ Kh6 53. Rg8 Rxb4 54. Rh8+) 52. Rxf7 Rb6!? { Black can try to improve his position before taking the g4-pawn. It should not change matters. } (52... Kxg4 53. Rg7+!) 53. Rg7+ Rg6 54. Ra7 Kxg4 55. Kg2 { with an elementary draw. }) 50... Rxb4 51. Rxc6+ Kg7 52. Rc5 { The rook comes to h5 and Black cannot make progress. }) 47... Rb5 48. Ra4 Ne5 49. Kh3 Kg5 50. Ra8 Rxb4 51. Rh8 { Perhaps Niemann was pinning his hopes on this position. If so, he was almost rewarded. } 51... Kf6? { A mistake in return. } (51... Kg6 52. Rh5 Rb5 { was much cleaner. }) 52. Rh5 Rb5 53. Rf5+ Ke7 54. Bh5 Ng6 (54... f6 { In the post-game interview, Caruana said that he was counting on this move. Unfortunately, it doesn't work: } 55. Rxf4 Nd3 56. Rxh4 Rxh5 57. Rxh5 Nf4+ 58. Kg4 Nxh5 59. Kxh5 Ke6 60. f4 f5 61. Kg5! fxe4 62. f5+ Kd5 63. Kf4 { and White saves the day. }) 55. Bxg6 fxg6 56. Rxf4 g5 57. Rg4 Kf6 58. f4? (58. Rg2 { offered far better chances of resistance, though I think that Black is winning anyway after } 58... Rc5! { (as pointed out by Caruana). }) 58... Rb3+ 59. Kh2 Rb2+? 60. Kh3? { The players repeat moves, missing one last chance for White. } (60. Kg1! { holds, as after } 60... gxf4 61. Rxf4+ Ke5 62. Rxh4 Re2 63. Rh6! { Black is not in time to cut off White's king. For example: } 63... c5 (63... Rc2 64. Kf1 { draws instantly. }) 64. Rh5+ Kd4 65. Rd5+ Kc4 66. Re5 Kb4 67. Kf1 { with a draw. }) 60... Rb3+ 61. Kh2 gxf4 62. Rxf4+ Ke5 63. Rxh4 Re3 64. Rh6 Rc3! 65. Kg2 Kxe4 { White's king is too far. } 66. Rd6 (66. Kf2 Kd3!) 66... Ke3 67. Re6+ Kd2 68. Rd6+ Kc2 69. Kf2 c5 70. Rc6 Kd2 71. Rc8 c4 72. Rc7 Rc2 73. Rd7+ Kc3+ 74. Ke1 Rh2 75. Kd1 Rh1+ 76. Ke2 Kc2 77. Rd2+ Kb3 78. Rd8 c3 79. Rb8+ Kc2 80. Ra8 Rh7 { 0-1 Black wins. } 0-1