Abstract
Wordle is a popular web game. Players use strategies and hints to figure out the correct answer of a daily puzzle. In general, there are several strategies to solve it efficiently, but which is the best depends on the game’s current states. This paper designed 4 individual strategies which is learnable for both computers and human players, and trained an AI based on Q-learning to solve the game automatically with a win rate of over 80%. The decision this AI made is only based on the word list, not including other information (e.g., frequency of appearance on the Internet). Based on the analysis, it can give players advices in various kinds of situations and offer useful combos. By using this AI players, it is feasible to figure out what is the best choice and improve their skills. However, it still cannot solve some rare situations efficiently, which may require more training or a new way of setting the game states.
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