Opener Lab
Compare ZOPPA
Pick a word to compare against.
How ZOPPA performs
Played first, ZOPPA removes about 81.3% of the possible-answer list on average and scores 3.14 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, ZOPPA left an average of 442 possible answers standing after the first guess. Its largest group in that replay came on July 21, 2026, when the answer was SHILL and 734 candidates survived.
First-guess odds
| Outcome | ZOPPA |
|---|---|
| First-turn solve* | 0% |
| At least one green | 18.4% |
| Any green or yellow | 68.9% |
| Whole row gray | 31.1% |
| Worst case answers left | 734 |
*Treating every word in the possible-answer list as equally likely.