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A team from CMU, MIT, NYU, and Stanford created Ataraxos, an AI that beat the best Stratego player in history 15-1-4 while training on just 16 GPUs, overcoming the game's massive hidden information and long-horizon challenges that stumped DeepMind's DeepNash.
This paper presents a parallelization framework for CFR algorithms using linear algebra operations, achieving up to four orders of magnitude speedup on GPU compared to CPU implementations.