Google’s AI learns to play strategy board game, quickly becomes one of world’s top players

Google’s artificial intelligence bot “DeepNash” has learned to play Stratego – one of the few board games AI had not mastered – and has reached an all-time top-three ranking among human experts. However, Stratego posed a challenge to AI since it is more complex and relies on imperfect information – one where players cannot directly observe the identities of their opponent’s pieces. “In Stratego, players cannot directly observe the identity of the opponent’s pieces, unlike in well known board games like Chess or Go. DeepNash developed an “unpredictable strategy” to win, scientists say, adding that its initial deployments varied significantly to prevent its opponent recognising the AI’s patterns over a series of games.