1. Start with the accepted guess bank
The tool evaluates five-letter words from the broad Guess Bank rather than filtering only through the smaller Answer Bank. This reduces the risk of excluding a valid opening guess or a real answer that is missing from an incomplete answer list.
2. Count useful letter coverage
For each word, the tool looks at its unique letters. A letter receives a higher coverage value when it appears in more words across the Guess Bank. A word with five different, frequently useful letters can therefore test more of the puzzle on turn one than a word with repeated letters.
3. Prefer distinct letters
Repeated letters are not automatically bad, but they usually reveal less information in an opening guess. The ranking therefore gives naturally distinct words an advantage. This is a coverage strategy, not a claim that repeated-letter answers are uncommon or invalid.
4. Give known answer words a small boost
Words present in the current Answer Bank receive a small ranking bonus. This keeps practical answer candidates near the top when their letter coverage is similar to a word that is mainly useful as a test guess. The bonus does not remove other valid guesses.
The score is a guide, not a proof
The current score is based on letter frequency, unique-letter coverage, and a small answer-list bonus. It is not a full probability model or an information-entropy calculation. Rankings can change when the word banks change, and different Wordle versions may use different accepted words and answer distributions.