[Event "Авербах: Самоучитель: Задания для коня: Задание 4"] [Site "https://live.chess-online.com/study/OOOCDl9v/AhpmgKMZ"] [Result "*"] [Variant "Standard"] [ECO "?"] [Opening "?"] [Annotator "https://live.chess-online.com/@/system"] [StudyName "Авербах: Самоучитель: Задания для коня"] [ChapterName "Задание 4"] [FEN "5K1k/7r/8/4N3/8/8/8/8 w - - 0 1"] [SetUp "1"] [UTCDate "2021.04.30"] [UTCTime "07:51:21"] [Source "https://live.chess-online.com/study/OOOCDl9v/AhpmgKMZ"] [Orientation "white"] { Объявите мат конем } *