What's a good move to queen+bishop threaten check or mate? I

My first brilliant move, but why is it brilliant? The queen could move and I'd end up taking a bishop but lose my rook? : r/chessbeginners

The Pin Tactic in Chess Explained by a Grandmaster [For Beginners]

What Is the Best Sacrifice in the History of Chess?

Knight & Queen: A Powerful Attacking Team

What's a good move to queen+bishop threaten check or mate? I usually bring my knight out to block the mate, but how do I threaten the bishop? - Quora

Can some one tell me why bishop to h6 was bad? - Chess Forums

Bishop Pair in Chess (Why It's So Valued) - PPQTY

How many steps can the bishop move if there are no obstacles and other pieces on a n*n chessboard? - Quora

learning - Why does the engine tell me to sacrifice a queen for bishop after a failed Scholar's mate? - Chess Stack Exchange

4-Move Checkmate –

4-Move Checkmate –

Queen vs. Rook Endgame (Guide) - PPQTY

How to checkmate with two Queens against the lone King - Pawnbreak

How to Checkmate Your Opponent