Shatranj. Mate, Stalemate & Bare King on the edge of the Board. White to move and wins.

Well, I think that Bare King is trivial from this position, Stalemate cannot happen without Bare King, and finally Checkmate is just impossible! Right answer?

1.Kb3!! b1=F 2. Fc3! Fa2 3. Ka3! Kb1 4.Fb2! Kc2 5.Kxa2

Well, I was just joking. My real idea is this:

1. Fa3 b1F 2. Kb3 Fa2+ 3. Kc2 Fb1+ 4. Kc1 Ka2 5. Fb2 Fc2 6. Kxc2−#0 stalemate & bare king

(or simply 5. Fb2 Kc3 6. Kxb1#0 bare king)

1. Fa3 b1F 2. Kb3 Fa2+ 3. Kc2 Fb1+ 4. Kc1 Fa2 5. Fb2+# checkmate!

(or simply 4. Kc1 Fc2 5. Fxc2#0 bare king)

Hi, Samuele. Joke in Shatranj - in the next Forum.