White to find the winning position
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Can you see the winning position for white?
easy
OK puzzle and I like to encourage puzzles, but we are all a bit used to queen sacs so we tend to see them quickly. There are too many winning lines. QxBc4 also works whether or not black takes the queen, and Qd4 Rd8 2 Qa7+ Kc8 3Qxb7+ Kd7 4Re1 works as well
Your title implied one winning line, whereas white is in a winning position where he can practically do no wrong. Your solution is indeed a good quick kill.