[ghusbands]

I believe there are already plenty of solvers doing it in five steps, worst case, as in [1]. I don't think any are doing it in four, but I doubt anyone has yet demonstrated that four is impossible.

[1] https://news.ycombinator.com/item?id=29890845

[ghusbands]

For future readers, the following link claims that five steps, worst case, is incorrect, and six is the smallest maximum: https://www.poirrier.ca/notes/wordle-optimal/