Opener Lab
Compare KYBOS
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How KYBOS performs
Played first, KYBOS removes about 85.7% of the possible-answer list on average and scores 3.75 bits of information. Its first-turn information ranks #12,887 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, KYBOS left an average of 346 possible answers standing after the first guess. Its largest group in that replay came on July 20, 2026, when the answer was DIVER and 739 candidates survived.
First-guess odds
| Outcome | KYBOS |
|---|---|
| First-turn solve* | 0% |
| At least one green | 11.2% |
| Any green or yellow | 68.7% |
| Whole row gray | 31.3% |
| Worst case answers left | 739 |
*Treating every word in the possible-answer list as equally likely.