[Event "?"] [Site "?"] [Date "2020.02.02"] [Round "?"] [White "black to move"] [Black "?"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "8/8/p6b/3n1p1k/8/1P3N2/R6P/3K4 b - - 0 55"] [PlyCount "3"] [SourceVersionDate "2020.02.02"] {} 55... Nc3+ {Knight fork! It checks the white king and attacks the rook.} 56. Kc2 Nxa2 *