... 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 "1959.??.??"]
[Round "?"]
[White "Gragger"]
[Black "Dorn"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "4r1k1/5ppp/r1q2n2/p1pNnQ2/PpP1P3/1P4R1/2B3PP/3R2K1 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Ne7+ { The knight must go or the queen falls next. } 1... Rxe7 2. Qxf6 Qxf6 ( { Black can try: } 2... Ng6 3. Rd8+ Re8 4. Qxc6 Rxc6 5. Rxe8+ Nf8 { White
wins with a large material advantage. } ) 3. Rd8+ Re8 4. Rxe8# 1-0