GoalFill the grid so each cat appears once per row, column, and 3x3 box
Look at empty cell
Find a cell that needs a cat
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Check which cats fit
See which cats are already in that row, column, and box
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Place the cat
Tap the cell and choose the cat that doesn't repeat
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Move to next empty
Continue until the grid is complete
↺Later puzzles have fewer cat clues to start
WinAll cells filled with no cat repeating in any row, column, or box