Nc3 Rxc3 Qb7#? Wait the rook blocks facepalm. I have a feeling it’s Qb1 — will check the variations at my next coffee break

Qb1

If the rook leaves the rank then Nc3#; if the rook leaves the file then Qb7#

If the e knight moves then Nf4#

If Nxe2 (or indeed anywhere other than e4) then Qh1#

If Ne4 then Qxb3#