Opener Lab
Compare ROIST
Pick a word to compare against.
How ROIST performs
Played first, ROIST removes about 95.8% of the possible-answer list on average and scores 5.47 bits of information. Its first-turn information ranks #279 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, ROIST left an average of 100 possible answers standing after the first guess. Its largest group in that replay came on July 17, 2026, when the answer was LEGAL and 312 candidates survived.
First-guess odds
| Outcome | ROIST |
|---|---|
| First-turn solve* | 0% |
| At least one green | 38.9% |
| Any green or yellow | 86.8% |
| Whole row gray | 13.2% |
| Worst case answers left | 312 |
*Treating every word in the possible-answer list as equally likely.
Planning the second guess
All five letters miss 13.2% of the time, leaving 312 words in play. Of the 808 follow-ups checked here, LANCE leaves the fewest possible answers on average (6.6).