Sudoku:Zen

Slow down. Start with one number. Sudoku Zen creates a calm, uncluttered space for classic Sudoku on iPhone. Whether you are learning the rules or taking a focused break, choose a puzzle and solve it at your own pace. SIX LEVELS OF CLASSIC SUDOKU Choose Easy, Medium, Hard, Expert, Master, or Extreme at any time. Every generated puzzle has a unique solution. Highlight related cells and matching numbers, and see how many of each number remain. TOOLS THAT SUPPORT YOUR THINKING Add candidate notes, erase entries, and undo moves. Automatically remove matching notes from related cells after a correct entry. Use free hints that explain logical singles when available, or reveal a cell when needed. Turn mistake checking on or off, with an optional three-mistake limit. Hide the timer or pause whenever you need a break. A DAILY CHALLENGE Play a consistent puzzle for each day based on your device’s…