Free Preview
Sudoku Nine by Nine
Pure logic, beautifully made. Hints that teach.
About this game
Classic Sudoku on soft, tactile tiles. Every puzzle has exactly one solution and is graded by the techniques a person needs. Daily puzzle, pencil marks, undo, and hints that explain the logic step by step. Portrait or landscape, phone or tablet.
How to play
- Fill the grid so every row, column and 3x3 box holds 1 to 9 once.
- Tap a tile, then tap a number. Use Pencil for small candidate marks.
- Tap the bulb for a hint: where to look, then why it works.
- Pick Easy to Master, or play the Daily Puzzle and keep your streak.
- Watch and Learn solves a puzzle for you and explains every step.
Get the full game
This browser preview is a free taste. The full game â unlimited play, more content, no interruptions â is in the Arcforge app on iPhone, iPad and Android. Every game starts with a free 90-second preview there too.