The rules of Plainoku

Place exactly one cat in every row, every column and every colored region. No two cats may touch, including diagonally.

Why do Cat Sudoku color regions matter?

Each connected color region may have an irregular shape. It still needs exactly one cat. The region boundary lines help you see where one region ends and another begins.

Which Cat Sudoku squares count as touching?

Squares that share an edge or corner are neighbors. A cat rules out all eight neighboring positions that exist on the board. Two cats farther apart can still conflict if they share a row, column or region.

How do you complete this Cat Sudoku puzzle?

Place the required number of cats with no conflicts. Plainoku checks the rules and announces completion automatically. Every generated puzzle has exactly one valid solution.

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