[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Black to play and win"] [Black "?"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "r4rk1/2pn2qp/8/2p2p2/2P1p3/1PN3P1/1KP1Q2P/3RR3 b - - 0 23"] [PlyCount "7"] [EventDate "2022.??.??"] [EventType "blitz"] [SourceVersionDate "2020.04.01"] {[#]} 23... Ra2+ 24. Kxa2 Qxc3 {and mate on a1 cannot be prevented, e.g.} 25. Rxd7 Ra8+ 26. Kb1 Ra1# *