Opener Lab
Compare CHAFF
Pick a word to compare against.
How CHAFF performs
Played first, CHAFF removes about 81.7% of the possible-answer list on average and scores 3.49 bits of information. Roughly 25% of the time at least one letter lands in the right spot.
Tried against 1,859 past Wordle answers, CHAFF left an average of 419 possible answers standing after the first guess. Its largest group in that replay came on July 20, 2026, when the answer was DIVER and 863 candidates survived.
First-guess odds
| Outcome | CHAFF |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 24.9% |
| Any green or yellow | 63.4% |
| Whole row gray | 36.6% |
| Worst case answers left | 863 |
*Treating every word in the possible-answer list as equally likely.