Opener Lab
Compare CASAS
Pick a word to compare against.
How CASAS performs
Played first, CASAS removes about 84.4% of the possible-answer list on average and scores 3.68 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, CASAS left an average of 370 possible answers standing after the first guess. Its largest group in that replay came on July 20, 2026, when the answer was DIVER and 809 candidates survived.
First-guess odds
| Outcome | CASAS |
|---|---|
| First-turn solve* | 0% |
| At least one green | 29.7% |
| Any green or yellow | 65.7% |
| Whole row gray | 34.3% |
| Worst case answers left | 809 |
*Treating every word in the possible-answer list as equally likely.