Opener Lab
Compare ESTER
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How ESTER performs
Played first, ESTER removes about 93.5% of the possible-answer list on average and scores 4.76 bits of information. Its first-turn information ranks #4,590 out of 14,855 Wordle guesses tested. Roughly 23% of the time at least one letter lands in the right spot.
Tried against 1,858 past Wordle answers, ESTER left an average of 152 possible answers standing after the first guess. Its largest group in that replay came on July 12, 2026, when the answer was CLACK and 401 candidates survived.
First-guess odds
| Outcome | ESTER |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 23.0% |
| Any green or yellow | 83.0% |
| Whole row gray | 17.0% |
| Worst case answers left | 401 |
*Treating every word in the possible-answer list as equally likely.