Cat Sudoku: Number Puzzle

Four difficulties, pencil notes, hints and undo. Play offline anytime and train your brain!

A clean, adorable take on classic Sudoku — with a cozy little cat to keep you company while you think!

Whether you're new to Sudoku or a seasoned solver, there's a challenge here for you. A tidy interface, soothing colors and background music help you relax and focus anywhere, anytime.

FEATURES • Four difficulties: Easy, Medium, Hard and Expert • Every puzzle has a guaranteed unique solution — pure logic, no guessing • Pencil notes: jot down candidate numbers in each cell • Smart hints when you're stuck • Undo: made a mistake? Step right back • Conflict highlighting for duplicates in a row, column or box • Timer and best-time records to beat your own speed • Background music and sound effects you can toggle freely • Three languages: Traditional Chinese, Simplified Chinese, English • Fully offline and single-player — no internet required

Relax, think, and enjoy Sudoku together with your cat!