White sacrifices a Rook to lure opponent's King into a mate (2 moves). If Rook is not taken Black loses a Rook on a8 to a skewer.

White skewers opponent's King to a Rook and if Queen blocks another skewer on Queen and Rook forces Black to exchange Queens leading to another skewer.

One precise check and Black King is forced to go to a square where it gets skewered to a Queen on b3.

Black King on e8 is not castled and his opponent uses this to attack undefended Knight on c5. Any attempt to defend it leads to a skewer that loses a Rook.

Black Queen (and Bishop) does a couple of checks and a couple of skewers and White King is forced to abandon his defense of the Queen.

Queen sacrifice and a couple of checks and skewers later Black emerges with an extra Rook.

Qh7+ does not win the Queen on d7 since it is well protected now only if we could lure it to c7 where it would be all alone.

If you can force the Black King to f5 there is skewer. Find a way to force the king to f5 and find the skewer.

Queen check from behind leads the Black King to a square where it gets skewered or checkmated.