This could be a nice distraction, but unfortunately the interaction latency makes it feel so sluggish I can’t get into flow.
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I built this simple puzzle generator to play around with wasm a bit.
It's open source if anyone wants to play around with the code https://github.com/lnenad/puzzlip
But I agree that applying different styling to tiles on both hover events and mousedown events would make it feel snappier.
(I've only tried this on desktop. Haven't tried it on mobile)