You do an experiment or a clinical study and you are the code braker not knowing the peg positions and colors ( set by a code maker ).
The codebreaker tries to guess the pattern, in both order and color, within twelve (or ten, or eight) turns. Each guess is made by placing a row of code pegs on the decoding board. Once placed, the codemaker provides feedback by placing from zero to four key pegs in the small holes of the row with the guess. Continue reading A Science career should not be like a Mastermind game