Another easy one
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what if the black move his knight at c5 (2.... Nc5 Blocking the white queen's attack). This will take more moves for black, but still it can't escape for a checkmate.
3.Qxc5!! Qxc5 4.Rxb7#
yah.. if black moves Nc5, then Qxc5!! Qxc5 then Rxb7#
Yeah, Black is in baaad shape... What's the best way to put 'em out of their misery?