Opener Lab
Compare CELLO
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How CELLO performs
Played first, CELLO removes about 91.7% of the possible-answer list on average and scores 4.47 bits of information. Its first-turn information ranks #7,473 out of 14,855 Wordle guesses tested. Roughly 30% of the time at least one letter lands in the right spot.
Tried against 1,858 past Wordle answers, CELLO left an average of 192 possible answers standing after the first guess. Its largest group in that replay came on July 15, 2026, when the answer was PSHAW and 419 candidates survived. It has been the daily answer once.
First-guess odds
| Outcome | CELLO |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 29.6% |
| Any green or yellow | 82.2% |
| Whole row gray | 17.8% |
| Worst case answers left | 419 |
*Treating every word in the possible-answer list as equally likely.