Opener Lab
Compare KAPPA
Pick a word to compare against.
How KAPPA performs
Played first, KAPPA removes about 73.8% of the possible-answer list on average and scores 2.86 bits of information. Roughly 20% of the time at least one letter lands in the right spot.
Tried against 1,859 past Wordle answers, KAPPA left an average of 622 possible answers standing after the first guess. Its largest group in that replay came on July 21, 2026, when the answer was SHILL and 1094 candidates survived.
First-guess odds
| Outcome | KAPPA |
|---|---|
| First-turn solve* | 0.04% |
| At least one green | 19.7% |
| Any green or yellow | 53.6% |
| Whole row gray | 46.4% |
| Worst case answers left | 1094 |
*Treating every word in the possible-answer list as equally likely.