AI has become table-flipping good at Stratego and Diplomacy, but is passably human at the latter. Both games require not raw calculation of paths to victory, but softer skills like guessing what the opponent is thinking, and what they think the computer is thinking. The StrateGo-playing model, from DeepMind, is named DeepNash, after the famous equilibrium. It is focused less on clever moves and more on play that can’t be exploited or predicted. On the Diplomacy side, we have an AI named Cicero that manages to play the game at a human level. Cicero works: Using the board state and current dialogue, make an initial prediction of what everyone will do, then use those predictions to form an intent for itself and its partner . . .
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