in reply to
It looks like a mastermind game problem.
Look at: Games::Mastermind. I am also interested in variation of this game: "Bulls and Cows".
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
Results (384 votes),