Solution
1… Qd1+ takes advantage of the X-ray ability of the e8-rook to force a checkmate.
1… Qd1+ 2. Re1 Qxe1+ 3. Rxe1 Rxe1#
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1… Qd1+ takes advantage of the X-ray ability of the e8-rook to force a checkmate.
1… Qd1+ 2. Re1 Qxe1+ 3. Rxe1 Rxe1#