Quarto, based on the board game designed by Blaise Muller, is a strategic board game in which you have to be the player to place the final piece in a row, column, or diagonal in a row of four pieces with at least one of the same attributes. The twist is that you can't pick which piece you use. Your opponent gets to pick which piece you must use. This app is a pass-and-play game that supports two players. It includes both the original game mode where you must achieve four in a row, and also includes a mode for advanced players that also allows the player to make a two by two rectangle to win. This app is ad-free, I made this as a personal project, not to make money.