Opener Lab
Compare SIREN
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How SIREN performs
Played first, SIREN removes about 96.4% of the possible-answer list on average and scores 5.59 bits of information. Its first-turn information ranks #126 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, SIREN left an average of 88 possible answers standing after the first guess. Its largest group in that replay came on July 18, 2026, when the answer was BOOTH and 251 candidates survived. It has been the daily answer once.
First-guess odds
| Outcome | SIREN |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 42.6% |
| Any green or yellow | 89.4% |
| Whole row gray | 10.6% |
| Worst case answers left | 251 |
*Treating every word in the possible-answer list as equally likely.