I’m sure some Gemini people (or twins or couples or…) would delight in such puzzles.
For more amplification on this, see Alien Barbeque.
This Cartoon was prompted by the Four Color Problem In Topology and the Color Sudoku book cover cited in the previous post.
I’m starting a series of cartoons involving the varieties of Sudoku, that I believe are imaginary (but amusing). Who knows? it could happen in the future! I plan to issue them weekly until I have satisfied this creative byway.