Is It a Wordle?

If you happen to play Wordle, there are only 2309 valid five letter words.

Introducing WordleBot, the Upshot’s Daily Wordle Companion - The New York Times

Every Wordle game starts with one of 2,309 possible solutions as the hidden word.

The WordleBot will tell you if you have used an invalid word, but only after the event.

There was only one possible solution left — and this wasn’t it. (PINOT is a valid guess, but it’s not one of the 2,309 Wordle solutions — sorry, I don’t make the rules.)

How do you know if your guess is valid or not without the spoiler of looking through the list?

Glad you asked. My Friday afternoon project: https://isitawordle.com