2024/05/08 DPA: "I Spy...An Attractive Intermezzo"

White to move.

White has a battery on the f file.

That leads to 1. Rf8+ Qxf8. 2. Bh7+ [Intermezzo] Kxh7. 3. Qxf8.

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The key was seeing the Intermezzo 2. Bh7+ Attraction Sacrifice to force the King away from the defense of the Queen.

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Some might question the solution as being an inadequate gain:  White has a Queen for a R+B but Black must give up the Knight:  ie 3. ... Ra6. 4. Qxb8 Rb6  5. Qxc7 Rb1+  6. Bc1, for example. 

Moving the Knight, which is pinned, loses the Rook. 

Not moving the Rook leads to 4. Qc8 and 5. Qb7, winning the Rook.

This can only be seen by calculating what happens after the puzzle ends.

Note that winning a Queen for a R+B is generally a good idea so keep this in mind when you next encounter this opportunity.