A few simple questions
How on earth did (s)he find that move? I will never be able to play like that! My grandmother used to say: “What wrong with talking to yourself? You get wise answers all the time”.
Talking to yourself, an inner dialogue is very important during a chess game. By asking creative questions you might find “impossible” moves!
Which pieces are least active? How can I make my least active pieces be more efficient? What if I could make several moves in a row or if I could remove certain pieces from the board? Purdy is suggesting even more creative thinking such as “jump-threats”.