Opener Lab
Compare ZEBUB
Pick a word to compare against.
How ZEBUB performs
Played first, ZEBUB removes about 78.2% of the possible-answer list on average and scores 2.91 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, ZEBUB left an average of 511 possible answers standing after the first guess. Its largest group in that replay came on July 21, 2026, when the answer was SHILL and 844 candidates survived.
First-guess odds
| Outcome | ZEBUB |
|---|---|
| First-turn solve* | 0% |
| At least one green | 15.5% |
| Any green or yellow | 64.2% |
| Whole row gray | 35.8% |
| Worst case answers left | 844 |
*Treating every word in the possible-answer list as equally likely.