PeerPuzzles
Hitori
Shade squares until no number repeats in any row or column.
No number twice in a row or column, among the unshaded squares.
Shaded squares never touch side by side.
The unshaded squares all join up, side by side, into one piece.
Tap a square to cycle it: shaded, circled (sure to stay), plain.
Progress can't be saved in this browser (private browsing, or site data blocked), so solved levels won't be ticked off.
Free play: a new random puzzle
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