Opener Lab
Compare FILLS
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How FILLS performs
Played first, FILLS removes about 85.2% of the possible-answer list on average and scores 3.83 bits of information. Its first-turn information ranks #12,510 out of 14,855 Wordle guesses tested. It is not on the possible-answer list, but it can still be useful because of the feedback groups it creates.
Tried against 1,858 past Wordle answers, FILLS left an average of 354 possible answers standing after the first guess. Its largest group in that replay came on July 19, 2026, when the answer was CHURN and 763 candidates survived.
First-guess odds
| Outcome | FILLS |
|---|---|
| First-turn solve* | 0% |
| At least one green | 24.2% |
| Any green or yellow | 67.6% |
| Whole row gray | 32.4% |
| Worst case answers left | 763 |
*Treating every word in the possible-answer list as equally likely.