White has several ways to win. He can give away his queen with .Qd4 Nxd4 and still win easily.
another puzzle

nxd4 is no win for white and black can block with b6 or if the following happens:
and white is in a totally winning position
nxd4 is no win for white and black can block with b6 or if the following happens:
and white is in a totally winning position
Of course your line wins! I said that the line "1. Qd4 Nxd4 " wins as well to show how easy white wins. It's a bit weird to nominate one move as "brilliant" when so many moves win. Engine judgement on brilliancy is quite poor.
brilliant move