Opener Lab
Compare SONAR
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How SONAR performs
Played first, SONAR removes about 96.2% of the possible-answer list on average and scores 5.52 bits of information. Its first-turn information ranks #200 out of 14,855 Wordle guesses tested. Roughly 43% of the time at least one letter lands in the right spot.
Tried against 1,858 past Wordle answers, SONAR left an average of 90 possible answers standing after the first guess. Its largest group in that replay came on July 16, 2026, when the answer was BUTTE and 263 candidates survived.
First-guess odds
| Outcome | SONAR |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 42.8% |
| Any green or yellow | 88.8% |
| Whole row gray | 11.2% |
| Worst case answers left | 263 |
*Treating every word in the possible-answer list as equally likely.