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If you're writing a program to solve Wordle, you're already cheating in some sense.

Whether or not you use the target word list, it's important to recognize that there *are* two separate lists: you can guess almost any plausible 5-letter word, even bullshit Scrabble words like SOARE. But the target word will always be a relatively common word, because the game is designed to be winnable for ordinary English speakers. Honestly the word list is still a little harder than I would have picked for a broad audience; eg REBUS the other day was on the obscure side.

It's also worth noting that the target word will never be a 3- or 4-letter word pluralized by adding -ES or -S. This is something that you could notice simply by playing for a couple weeks. These seem to have been excluded manually or by a regex: it does have plural words of other forms, and it has words with other endings like -ER or -ING.