Sudoku: Number Logic Puzzle

Four difficulty levels, smart notes, hints, undo, a timer and full lifetime stats. Calm, classic logic.

Sudoku is the classic number puzzle, rebuilt clean and calm for a focused solve. Every board is generated fresh with a single guaranteed solution, so you always have a fair, logical path from the first clue to the last.

Pick your challenge across four difficulty levels:

• Easy and Medium for a relaxed warm-up
• Hard for a real test of your deductions
• Expert for the toughest grids, sitting at the floor of human-solvable puzzles

Thoughtful tools keep the focus on logic, not busywork:

• Pencil mark notes to track candidate numbers in any cell
• Undo to step back through your moves
• Erase to clear a cell instantly
• Hint to reveal a correct digit when you are truly stuck
• A built-in timer so you can chase your personal best

A clear mistake counter gives each difficulty a fair allowance, so one slip will not end your round. Conflicts are highlighted as you play, helping you learn the patterns that make Sudoku click.

Your progress is always saved. Leave mid-game and pick up exactly where you left off, on the same board with your time and notes intact.

Track your improvement over time with full lifetime statistics:

• Games played and games won
• Win rate and current streak
• Best streak
• Best completion time for each difficulty level

The interface is deliberately minimal and easy on the eyes, with smooth haptic feedback on every tap, placement, and win. There are no accounts to create and nothing to configure. Just open the app and start solving.

Whether you have five minutes in line or a quiet evening to fill, Sudoku is the calm, classic logic game that is always ready when you are.