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Latest  /  October 21, 2025

Posts from October 21, 2025

2 posts from engineering leaders published October 21, 2025, by Nelson Elhage and Dan Abramov.

October 21, 2025 2 POSTS

Solving regex crosswords with Z3

For a while now, I’ve been fascinated by Z3 and by SMT solving more broadly. While on pat leave recently, I was reminded of the existence of regular-expression crossword puzzles, and allowed myself to get nerdsniped by writing a Z3-backed solver. I expected to spend perhaps an…

Systems & Infra