A knight on the rim is dim.
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[Event "rated blitz match"] [Site "Free Internet Chess Server"] [Date "2019.07.18"] [Round "?"] [White "dah"] [Black "lounaki"] [Result "*"] [BlackElo "1383"] [FEN "5rk1/pb5p/1p3Bp1/8/5Q2/P7/3R1KPP/q7 w - - 0 1"] [SetUp "1"] [TimeControl "180+7"] [WhiteElo "1475"] 1. Qc4+ Rf7 2. Rd8# *