regexle
Fill a hexagon grid so every row matches its regex rule
Regexle is a daily crossword on a hexagon-shaped grid. You fill each cell with letters or numbers so that every row matches the regular expression written along its edge. A rule must match the whole line, and empty cells count as spaces. Rules change colour to show you which ones are already satisfied.
Free · No login · Browser · New puzzle daily · Intermediate
About regexle
The puzzle trains you to read regex patterns quickly and to combine several patterns at once. It suits intermediate players who already know basic regex syntax.
It runs in the browser and you can choose a larger or smaller puzzle size. A hint mode is available if you get stuck, but it counts how many hints you use.
On Breakpoint since 23 Oct 2026.