... if your King is under attack you don't worry about losing a Pawn on the Queen's side.
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[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown408"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "4r3/2pR1pk1/p3r2N/8/4P3/4Q2P/bpq3P1/4R1K1 w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1. Rxf7+ Kg6 ( { Black can try: } 1... Kh8 2. Qg5 Qc3 3. Nf5 ( 3. Ref1 Rc6 4. R7f2 Qg7 5. Qxg7+ Kxg7 6. Rxb2 Kxh6 7. Rxa2 Rxe4 { With a likely draw. } ) 3... Qxe1+ 4. Kh2 Rg8 5. Qh5+ Rh6 6. Qxh6# ) 2. Qg3+ Kxh6 3. Qg7+ Kh5 4. Rf5+ Kh4 5. Qg5# 1-0