Opener Lab
Compare STAIR
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How STAIR performs
Played first, STAIR removes about 96.2% of the possible-answer list on average and scores 5.53 bits of information. Its first-turn information ranks #190 out of 14,855 Wordle guesses tested. Roughly 39% of the time at least one letter lands in the right spot.
Tried against 1,858 past Wordle answers, STAIR left an average of 90 possible answers standing after the first guess. Its largest group in that replay came on July 8, 2026, when the answer was DEMON and 268 candidates survived. It has been the daily answer once.
First-guess odds
| Outcome | STAIR |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 39.1% |
| Any green or yellow | 88.6% |
| Whole row gray | 11.4% |
| Worst case answers left | 268 |
*Treating every word in the possible-answer list as equally likely.