Amazon.com. Test your code-cracking prowess with Mastermind, “the challenging game of logic and deduction.” The codemaker sets a code of four colored pegs–choosing from yellow, red, orange, blue, green, or white–and conceals it behind a flip-up shield. Your mission: replicate the code in 10 moves or fewer.
https://www.amazon.com/Mastermind-Game-Strategy-Codemaker-Codebreaker/dp/B00000DMBF

