Extension of Feynman's Problem Solving Algorithm!

After reading the post of Sasikanth, I thought of extending the Algorithm.
The Original one goes like this :

The Feynman Problem-Solving Algorithm:
(1) write down the problem;
(2) think very hard;
(3) write down the answer.

Subbaraju's/Subbu's Extension of Feynman's Problem Solving Algorithm:
(1) write down the problem;
(2) think very hard;
(3) write down the answer.
(4) if the answer is true/consistent then end else go to step (1)