Thanks!!! Really glad you liked it! Hmmm... I'm not sure I could swap colors independently without it becoming unsolvable... I could swap individual pieces, but provided its still solvable, I think there should always be a series of turns that could accomplish the same change. Hiding colors is a cool idea! There's definitely some interesting non-euclidean stuff out there! just found this which looks pretty neat: a bit above my paygrade as they say though! But maybe someday!
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