Opener Lab
Compare FONDU
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How FONDU performs
Played first, FONDU removes about 87.1% of the possible-answer list on average and scores 4.07 bits of information. Its first-turn information ranks #11,018 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 1,860 past Wordle answers, FONDU left an average of 301 possible answers standing after the first guess. Its largest group in that replay came on July 21, 2026, when the answer was SHILL and 737 candidates survived.
First-guess odds
| Outcome | FONDU |
|---|---|
| First-turn solve* | 0% |
| At least one green | 24.2% |
| Any green or yellow | 68.8% |
| Whole row gray | 31.2% |
| Worst case answers left | 737 |
*Treating every word in the possible-answer list as equally likely.