I was playing a game as Black against computer and came up a tactical move that defends me from pressure. I have expected a normal retreat of the queen yet computer kept sacrificing the knight like it was lost anyway, therefore this question :
Did I miss a win for Black or the position is just fine for White?
Here is the position:
[Title "White to move"] [fen "4r1k1/3q1ppp/pp6/2QN1n2/1P6/8/P4PPP/3R2K1 w - - 0 1"]
White kept playing
Qxb6 but I believe that any retreat of the queen is fine, what did I miss?