MasterMind A zkApp in development by the O(1) Labs team. It is based on the classic board game Mastermind, a 2 player game where the aim is to predict a series of colour combinations by process of elimination and uses zk technology. This app was shown in the June 2022 #snarkyJS week workshops to demonstrate the potential of zkApps. The source code can be reviewed at https://github.com/jackryanservia/mastermind