Opener Lab
Compare ECHOS
Pick a word to compare against.
How ECHOS performs
Played first, ECHOS removes about 92.0% of the possible-answer list on average and scores 4.47 bits of information. Its first-turn information ranks #7,474 out of 14,855 Wordle guesses tested. It is not on the possible-answer list, but it can still be useful because of the feedback groups it creates.
Tried against 1,858 past Wordle answers, ECHOS left an average of 187 possible answers standing after the first guess. Its largest group in that replay came on July 20, 2026, when the answer was DIVER and 440 candidates survived.
First-guess odds
| Outcome | ECHOS |
|---|---|
| First-turn solve* | 0% |
| At least one green | 11.9% |
| Any green or yellow | 85.5% |
| Whole row gray | 14.5% |
| Worst case answers left | 440 |
*Treating every word in the possible-answer list as equally likely.