Identifying the *real* public keys of ring signatures

Question

Since a ring signature uses |R-1| decoy outputs for a ring of size R, is it possible to retrieve from them the real (which reveals the true wallet) A,B values from those stealth addresses?

Answer 1

Every public key in the ring is valid as they are all stealth addresses. You cannot determine which is the real destination (which wallet receives the funds or how much).

A good explanation of stealth addresses can be found here.