Opener Lab
Compare UMBRA
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How UMBRA performs
Played first, UMBRA removes about 90.1% of the possible-answer list on average and scores 4.21 bits of information. Roughly 14% of the time at least one letter lands in the right spot.
Tried against 1,859 past Wordle answers, UMBRA left an average of 234 possible answers standing after the first guess. Its largest group in that replay came on July 21, 2026, when the answer was SHILL and 496 candidates survived. It has been the daily answer once.
First-guess odds
| Outcome | UMBRA |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 13.6% |
| Any green or yellow | 79.0% |
| Whole row gray | 21.0% |
| Worst case answers left | 496 |
*Treating every word in the possible-answer list as equally likely.