Opener Lab
Compare FECAL
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How FECAL performs
Played first, FECAL removes about 93.4% of the possible-answer list on average and scores 4.86 bits of information. Its first-turn information ranks #3,606 out of 14,855 Wordle guesses tested. Roughly 26% of the time at least one letter lands in the right spot.
Tried against 1,858 past Wordle answers, FECAL left an average of 151 possible answers standing after the first guess. Its largest group in that replay came on July 18, 2026, when the answer was BOOTH and 363 candidates survived.
First-guess odds
| Outcome | FECAL |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 26.4% |
| Any green or yellow | 84.6% |
| Whole row gray | 15.4% |
| Worst case answers left | 363 |
*Treating every word in the possible-answer list as equally likely.