Available in English and Spanish. Quarto is a turn-based strategy game for two, created by the Swiss mathematician Blaise Muller. The objective of the game is to align 4 pieces (either horizontally, vertically or diagonally) on a 4x4 board. Each game piece has 4 different characteristics: height (tall or short), color (dark or light), mass (solid or hollow) and shape (square or circle). Additionally, take into account that our opponent chooses our game piece to play.