Magic: The Gathering” is officially the world's most complex game

Magic: The Gathering is a card game in which wizards cast spells, summon creatures, and exploit magic objects to defeat their opponents. In the game, two or more players each assemble a deck of 60 cards with varying powers. They choose these decks from a pool of some 20,000 cards created as the game evolved.…
A new proof with important implications for game theory shows that no algorithm can possibly determine the winner.

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It's official: Magic the Gathering is the world's most complicated game