- 北極数独 -

- 北極数独 - is a clean, minimal Sudoku puzzle app designed for focused logic practice on mobile. - 北極数独 - offers multiple difficulty levels, a hint system, and gentle visuals to reduce distractions while you solve puzzles.

Gameplay

In - 北極数独 - each puzzle follows standard 9x9 Sudoku rules: fill every row, column, and 3x3 block with digits 1–9 without repeats. The interface supports pencil marks, undo, redo, and optional timer tracking so you can practice speed or work at a relaxed pace.

Features

• Difficulty levels from beginner to expert with procedurally generated puzzles.
• Hints and validation optional hints, error highlighting, and step-by-step assistance.
• Customizable interface choose themes, grid size, and input methods to match your preference.
• Offline play all core functionality works without an internet connection.
• Progress tracking see statistics, best times, and completion history to monitor improvement.

Tips and support

Use pencil mode to record candidates, enable mistake checks to learn from errors, and review statistics to improve. If you need assistance or have feedback, use the in-app support options or contact the developer via the settings screen.