[cpcallen]

Seems interesting but for some reason on Chrome on my iPhone 13 mini the page is too big for the screen: I have to pinch zoom out to see the X that dismisses the instructions, and can't scroll the about page.

Did you make some assumptions about the minimum window / screen size based on oversized modern smartphones, forgetting that lots of us still cling to more reasonably sized older devices?

[fuglede_]

Hm, yeah, tested it down to about 500 px width, and the low-resolution devices in Chromium but that was too optimistic then. The modals should of course be closeable, and both game boards simultaneously visible. Played around with the modals a bit, so maybe it works better now?