Trelob Sudoku

Sudoku by Trelob Studio is a free, offline puzzle game. No ads, no in-app purchases, and no account. Fill the 9×9 grid so every row, column, and 3×3 box contains the digits 1–9. All puzzles have a unique solution. Six difficulty levels • Easy, Normal, Hard, Expert, Master, and Extreme • Thousands of built-in puzzles • Continue an unfinished game from the home screen Play your way • Pencil notes for candidates • Unlimited undo • Hints that walk through standard solving techniques • Number First mode: pick a digit, then tap a cell • Optional sound • Pause anytime Privacy • Works fully offline • Progress and settings stay on your device • We do not collect personal data Hide or reorder difficulties in Preference. Recently completed games appear under Recently Played. Requires iOS 15 or later.

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