I'm surprised nobody's mentioned the Regex Crossword game site [0], it's shown up on HN several times [1][2] and has a fantastic user-submitted puzzle section (

I'm surprised nobody's mentioned the Regex Crossword game site [0], it's shown up on HN several times [1][2] and has a fantastic user-submitted puzzle section (that includes the MIT Mystery Hunt puzzle [3]) and a puzzle builder. 0: https://regexcrossword.com/ https://regexcrossword.com/ 1: https://news.ycombinator.com/from?site=regexcrossword.com https://news.ycombinator.com/from?site=regexcrossword.com 2: Most discussed posting: https://news.ycombinator.com/item?id=8674039 https://news.ycombinator.com/item?id=8674039 3: https://regexcrossword.com/playerpuzzles/8cbea27f-c4c5-4d11-a509-6a622ba01107 https://regexcrossword.com/playerpuzzles/8cbea27f-c4c5-4d11-...