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One Million Chessboards

I made a website. It's called One Million Chessboards. It has a million chessboards on it. Moving a piece moves it for everyone, instantly. There are no turns.

I’m going to save a full technical writeup until I see how my decisions pan out, since I think there’s a decent chance I’ll need to make a lot of changes. Unlike One Million Checkboxes, I designed this for scale The game runs on a single server (!) That last part - optimistic move application with what games people sometimes call “rollback” - is about 1,600 lines of code that took me a ~7 days of fulltime work to write.

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