Opener Lab
Compare COPES
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How COPES performs
Played first, COPES removes about 94.0% of the possible-answer list on average and scores 4.93 bits of information. Its first-turn information ranks #2,971 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, COPES left an average of 143 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 | COPES |
|---|---|
| First-turn solve* | 0% |
| At least one green | 32.7% |
| 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.