About Purrdoku
Purrdoku is a cosy cat-café logic puzzle: seat exactly one cat in every row, every column and every colour region, and never let two cats touch, not even diagonally. Climb through hundreds of hand-checked boards from 4x4 up to 10x10, with three hearts per level, hints and a daily puzzle.
How to play
Touch: tap a cell to mark it with an X (tap again to clear), double-tap to seat a cat, drag across cells to paint Xs. Desktop: click = X, double-click or right-click = cat, drag = paint Xs; arrow keys move the cursor, Space toggles X, Enter seats a cat, H for a hint, P or Esc pauses. A wrong cat costs a heart; three wrong cats and the level restarts.
