Opener Lab
Compare SURDS
Pick a word to compare against.
How SURDS performs
Played first, SURDS removes about 87.7% of the possible-answer list on average and scores 4.01 bits of information. It is not on the possible-answer list, but it can still be useful because of the feedback groups it creates.
Tried against 1,859 past Wordle answers, SURDS left an average of 294 possible answers standing after the first guess. Its largest group in that replay came on July 18, 2026, when the answer was BOOTH and 658 candidates survived.
First-guess odds
| Outcome | SURDS |
|---|---|
| First-turn solve* | 0% |
| At least one green | 31.9% |
| Any green or yellow | 72.1% |
| Whole row gray | 27.9% |
| Worst case answers left | 658 |
*Treating every word in the possible-answer list as equally likely.