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How to play. The board is split into outlined regions of different sizes.
A region with N cells must contain each number from 1 to N exactly once — so region size
controls which numbers go in it (varying set sizes). Additionally, no number may be repeated in any
two hexes that share an edge, even across region borders.
Click a hex, then a number (or type it). Pencil mode jots small candidates (or hold Shift + a digit). 0/Backspace clears. Every puzzle has exactly one solution.
Click a hex, then a number (or type it). Pencil mode jots small candidates (or hold Shift + a digit). 0/Backspace clears. Every puzzle has exactly one solution.