wrong. The black queen can block the rooks check, so not mate in one. Qb7# looks right.
Discussion
i.e., your first answer wad correct.
uff oc you're right!
But my first answer, moving the queen, is not an option. It puts the white king in check hence the queen cannot be moved.
nostr:npub1heqf8jcmf9erymnxn232n4cc8wrwvsv7p3f8flfsrpg88rkjtuhsz99kel I think this is the move.

perfect!
