Summary of “The Universe’s Ultimate Complexity Revealed by Simple Quantum Games”

In all of these games, the rate at which players win has implications for the number of different ways the universe can be configured.
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.
These games are all modeled on games invented more than 50 years ago by the physicist John Stewart Bell.
Bell developed the games to test one of the strangest propositions about the physical world made by the theory of quantum mechanics.
In the magic square game, and other games like it, there doesn’t seem to be a way for the players to win 100 percent of the time.
What Bell calculated, and what many subsequent experiments have shown, is that by exploiting the strange quantum correlations found in entanglement, players of games like the magic square game can coordinate their answers with greater exactness and win the game more than 89 percent of the time.
They’ve shown that not only do Bell’s games imply the reality of entanglement, but some games have the power to imply a whole lot more – like whether there is any limit to the number of configurations the universe can take.
Slofstra’s work suggests a way to test the distinction: Play a game that can only be won 100 percent of the time if the universe allows for infinite-dimensional state spaces.

The orginal article.