sudo_ Sudoku

sudo_ Sudoku - focused logic in a code-inspired workspace.

A modern take on classic Sudoku, designed with the clarity of a good code editor. Switch between light and dark themes, solve at your own pace, and learn the reasoning behind every move. No ads. No accounts. No internet.

CLASSIC SUDOKU
Solve timeless 9x9 Sudoku across multiple difficulty levels - from a quick warm-up to a serious challenge. Every puzzle has a single solution and is cracked with pure logic. No guessing.

PRACTICE MODE - actually get better
Most Sudoku apps just hand you puzzles. sudo_ Sudoku teaches you to break them. Drill 20+ real solving techniques one at a time, on puzzles hand-built around each one:
- Hidden & Naked Singles, Pairs and Triples
- Pointing Pairs & Box/Line Reduction
- X-Wing, Swordfish, Skyscraper, Two-String Kite
- XY-Wing, XYZ-Wing, W-Wing
- Empty Rectangle, Unique Rectangles, and more

SMART HINTS
Stuck? A hint explains the next logical step - so you learn the reasoning instead of just revealing a number.

MADE FOR FOCUS
- Calm, code-editor-inspired light and dark themes
- Candidate notes on a sharp, readable grid
- Inspector guidance that explains the active technique
- Paper Mode when you want a quieter board
- Layouts tuned for phones and tablets
- Detailed statistics and per-technique progress tracking

PRIVACY-FIRST
sudo_ Sudoku runs fully offline and collects zero data. Nothing ever leaves your device.

Casual solver or technique hunter - sudo_ Sudoku keeps the logic clear and the interface out of your way.

Boot it up, tap a cell, solve.