What is Mastermind Codebreaker? Mastermind is a puzzle and logic game, the aim is to find a secret code made up of a sequence of colors. The goal as an agent is to crack the code created by the other secret agent team. For the record, Mastermind didn't actually invent everything, and it has been inspired by games like Bulls & cows, a 2-player decryption game where one of the two players had to find the number of cows in the herd, as well as numerello (an Italian version of Bulls & cows). We w