Serein Sudoku

A little order. A quieter mind. Serein Sudoku turns a classic number puzzle into a calm daily ritual. Settle into a warm, paper-inspired interface, follow the logic, and fill your grid one thoughtful move at a time. A FRESH PAGE EVERY DAY Enjoy a daily edition with one uniquely solvable puzzle for your local calendar day. Or choose free play and start a fresh puzzle whenever you like. CHOOSE YOUR PACE Gentle, Classic, and Expert offer different starting-clue densities. Every generated puzzle is checked to have exactly one solution. The solving techniques required can vary within each level. TOOLS THAT HELP YOU THINK Use pencil notes to explore candidates, undo an edit, erase a cell, or check the digits you have entered. Need a nudge? Reveal a correct digit with an unlimited hint. Related pencil notes clear automatically when you place a digit. PICK UP WHERE YOU LEFT OFF Your active puzzle, notes, undo history, and elapsed time save automatically on your device. Pause to hide the board and stop the timer. Starting a new puzzle replaces your current one after confirmation. YOUR OWN QUIET SPACE Switch to Night paper for evening play. Follow your completed-puzzle totals, daily editions, and best times in local statistics. Play in portrait or landscape, with labeled controls and accessible grid cells. No ads. No purchases. No account. No internet connection required. No analytics or personal-data collection. Serein Sudoku is an English-language, offline puzzle game. Uninstalling the app clears its locally saved progress and statistics.