Opener Lab
Compare COPSE
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How COPSE performs
Played first, COPSE removes about 94.4% of the possible-answer list on average and scores 5.09 bits of information. Its first-turn information ranks #1,843 out of 14,855 Wordle guesses tested. Roughly 40% of the time at least one letter lands in the right spot.
Tried against 1,858 past Wordle answers, COPSE left an average of 133 possible answers standing after the first guess. Its largest group in that replay came on July 11, 2026, when the answer was AVIAN and 330 candidates survived.
First-guess odds
| Outcome | COPSE |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 40.4% |
| Any green or yellow | 86.0% |
| Whole row gray | 14.0% |
| Worst case answers left | 330 |
*Treating every word in the possible-answer list as equally likely.