Opener Lab
Compare HYDRO
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How HYDRO performs
Played first, HYDRO removes about 90.3% of the possible-answer list on average and scores 4.33 bits of information. Its first-turn information ranks #8,887 out of 14,855 Wordle guesses tested. Roughly 15% of the time at least one letter lands in the right spot.
Tried against 1,858 past Wordle answers, HYDRO left an average of 228 possible answers standing after the first guess. Its largest group in that replay came on July 17, 2026, when the answer was LEGAL and 546 candidates survived.
First-guess odds
| Outcome | HYDRO |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 15.1% |
| Any green or yellow | 76.8% |
| Whole row gray | 23.2% |
| Worst case answers left | 546 |
*Treating every word in the possible-answer list as equally likely.