Now a position where the same sort of possibility is a non-problem. Where does White have a skewer? Look for aligned Black pieces and see that his king and bishop are set up for a skewer on the back rank; White’s rook can do the job with Rc8+. But since the skewering piece (the rook) is more valuable than the targeted piece (the bishop), the move only works if the bishop is loose and will stay that way. So White has to worry that Black will reply Kg7 and thus protect the bishop with his king. The worry is only momentary, however; the first thing to inspect is whether Black can in fact play Kg7. He can't, because g7 is under attack by White’s h6 pawn. Instead Black’s king will have to move to e7, allowing the clean win of a piece with RxB.