A complex variant of poker is the latest game to be mastered by artificial intelligence (AI). And it has been conquered not once, but twice, by two rival bots developed by separate research teams.
Each algorithm—which plays a 'no limits' two-player version of Texas hold'em—has in recent months hit a crucial AI milestone: they have beaten human professional players.
The game first fell in December to DeepStack, developed by computer scientists at the University of Alberta in Edmonton, Canada, with collaborators from Charles University and the Czech Technical University in Prague. A month later, Libratus, developed by a team at Carnegie Mellon University (CMU) in Pittsburgh, Pennsylvania, achieved the feat.
Over the past decade the groups have pushed each other to make ever better bots, and now the team behind DeepStack has formally published details of its AI in Science. But the bots are yet to play each other.
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