[Event "ch-USA w 2022"] [Site "https://lichess.org/study/dfRDZs7P/YJLnzOAw"] [Date "2022.10.17"] [Round "11.5"] [White "Paikidze, Nazi"] [Black "Krush, Irina"] [Result "0-1"] [WhiteElo "2354"] [BlackElo "2432"] [Annotator "King,Alex"] [Variant "From Position"] [ECO "?"] [Opening "?"] [FEN "8/3B1pk1/6pp/8/5P2/6P1/5K1P/2r5 b - - 0 42"] [SetUp "1"] [Source "https://lichess.org/study/dfRDZs7P/YJLnzOAw"] [Orientation "white"] { [#] } 42... Rc2+ { The toughest version of this ending to convert is when White's f-pawn is back on f2, and the h-pawns are fixed on h4/h5. Even there, it is a win, but the superior side has to demonstrate significant technique (and sometimes fails to do so, e.g. Vera Gonzalez Quevedo - Baburin, Istanbul 2000). In the game position, Black's task is much easier, as she can force White's king to the back rank and then immediately achieve the useful ...g5 break, which in the tougher version of this ending has to be carefully prepared as a sacrifice. } 43. Kg1 g5! { Forcing White into a crisis regarding her f-pawn. If she advances it to f5, Black will attack it with her king and rook, forcing g3-g4, after which Black's king and rook will both attack g4, forcing h2-h3, after which Black's king will come to g3 and win the h-pawn. If instead of f4-f5 White allows a trade on f4, then Black will walk her king around to e3 and force the pawn to advance to f5 anyway. The only other option is to trade on g5, which Paikidze goes for. } 44. fxg5 hxg5 { Now Black has a potential passer which is essentially unstoppable thanks to White's passive king position. } 45. Bf5 Rb2 46. Be4 Kf6 47. Bf3 Ke5 48. h3 f5 49. Kf1 Kd4 50. Kg1 Ke3 51. Bg2 Rxg2+!? { Simply ...f4 was also an easy win, but Krush's way prompts a swift resignation. } 52. Kxg2 Ke2 { and Black's f-pawn advances with check, winning a tempo and preventing White from queening in time. } 0-1