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DeepMind, the London-based subsidiary of Alphabet, has createda system that can quickly master anygame in the classthat includes chess, Go, and Shogi, and do sowithouthuman guidance. The system, called AlphaZero, began its lifelast yearby beating a DeepMind system that had been specialized just for Go. That earlier system haditself made history by beating one of the world’s best Go players, but it needed human help to get through a months-long course of improvement.