The Universe’s Ultimate Complexity Revealed by Simple Quantum Games

But Slofstra proved that if you give them access to an infinite amount of an unorthodox resource — entangled quantum particles — it becomes possible for the players to win this game all the time. In 2017 three researchers proved that there are games with just five questions that can be won 100 percent of the time if the players have access to an unlimited number of entangled particles. To implement a quantum strategy in the magic square game, Alice and Bob each take one of a pair of entangled particles.

Source: www.quantamagazine.org