MEBO Room

Two players aim to align four pieces on a board. You might think you've seen something with this objective before, but in Quarto, the twist is that your opponent dictates which piece you must play. As if that weren't enough, the aligned pieces must share at least one common characteristic, and there are 8 characteristics to consider: light, dark, tall, short, round, square, filled, or empty. This grand challenge was created by the Swiss mathematician Blaise Muller.