He had played it as a child and wanted to share this with her. In Mastermind a player chooses 4 colored pegs and places them in a secret code compartment. If you've read some of my other game reviews, you might notice a trend. Most of the games I like involve some type of logic puzzle element. Mastermind is no exception.
Mastermind is a very simple game.
It requires two players, one of whom choses a hidden pattern of four colored pegs and the other one who tries to guess what that pattern is. There are six colors of pegs available to the person setting the pattern, and more than one peg of a color can be used. You should confirm all information before relying on it.