Opener Lab
Compare UMBEL
Pick a word to compare against.
How UMBEL performs
Played first, UMBEL removes about 90.9% of the possible-answer list on average and scores 4.39 bits of information. It is not on the possible-answer list, but it can still be useful because of the feedback groups it creates.
Tried against 1,859 past Wordle answers, UMBEL left an average of 215 possible answers standing after the first guess. Its largest group in that replay came on July 15, 2026, when the answer was PSHAW and 502 candidates survived.
First-guess odds
| Outcome | UMBEL |
|---|---|
| First-turn solve* | 0% |
| At least one green | 22.6% |
| Any green or yellow | 78.7% |
| Whole row gray | 21.3% |
| Worst case answers left | 502 |
*Treating every word in the possible-answer list as equally likely.