Sudoku ZenX is a free offline Sudoku game with four board sizes, three difficulty levels and a new daily challenge every day. Play classic 9x9 Sudoku, or start smaller with mini 4x4 and 6x6 grids built for beginners.

★ FOUR SUDOKU BOARDS
• Classic 9x9, the timeless original
• Mini 4x4, a two minute solve and the easiest way to learn Sudoku
• Mini 6x6, the same logic on a smaller grid
• Even-Odd, where shaded cells are locked to even or odd numbers

Most Sudoku apps offer 9x9 and nothing else. The mini boards make this a good place to start if you are learning, or teaching a child, and the full 9x9 is waiting when you are ready.

★ THREE DIFFICULTY LEVELS
Easy, Medium and Hard, whether you want a quick warm up or a long sit down.

★ A NEW PUZZLE EVERY TIME
Every Sudoku puzzle is generated fresh and verified to have exactly one solution, so logic alone always gets you there and you never have to guess. There is no fixed puzzle library to run out of.

★ DAILY CHALLENGE
One puzzle a day, seeded from the date so everyone plays the same board. Build your daily streak and keep it alive.

★ DAILY 25
A 25 level run that starts gentle and ends brutal. Levels 1 to 8 are Easy, 9 to 17 Medium, 18 to 25 Hard. Your level is saved so you can take breaks, but a fourth mistake ends the run.

★ POINTS CHALLENGE
A scored mode for when you want the pressure on. Solving earns points and mistakes cost you.

★ PLAY OFFLINE, ANYWHERE
No internet needed to solve puzzles. Play on a plane, on a commute, or anywhere with no signal.

★ HINTS, NOTES, UNDO AND REDO
• Three free hints per game, with more available if you want them
• Pencil notes, with the option to clear them automatically as you place numbers
• Unlimited undo and redo
• Correct entries lock in place so you cannot overwrite them by accident
• Highlight matching numbers, or the active row, column and box
• Three mistakes end a game, so accuracy counts

★ PROGRESS TRACKING AND STATS
• Games played, best times and win rate
• Daily, play and marathon streaks, with personal bests
• Points earned across every mode
• 15 achievements to unlock
• An optional daily reminder at a time you choose

★ CLOUD SYNC ACROSS DEVICES
Sign in with Google Play Games and your progress follows you everywhere: stats, achievements, streaks and points, backed up automatically. Sign-in is entirely optional and the whole game works without it.

★ TWELVE THEMES
Classic, Dark, Ocean, Forest, Sunset, Purple, Pink, Teal, Red, Indigo, Amber and Brown. All free, nothing locked.

★ DESIGNED FOR CALM
No banner ads cluttering the board. No ad ever interrupts a puzzle. A timer you can switch off completely, plus toggles for sound, haptics and animations. Just you, the grid, and clean focus.

WHY SUDOKU ZENX?
✓ Every puzzle and every theme free, with nothing locked behind a paywall
✓ Four board sizes, not just 9x9
✓ No banner ads, and never an ad in the middle of a puzzle
✓ No account needed. Sign-in is optional and only adds cloud sync

WHO IT IS FOR
• Beginners and children learning Sudoku on the 4x4 and 6x6 boards
• Commuters who want a quick five minute mental warmup
• Coffee break puzzle lovers
• Anyone who finds calm in patterns and logic
• Veterans who want a streak worth defending

Download Sudoku ZenX. Solve. Repeat. Improve.

Privacy: https://infogamestemx.github.io/sudoku-zenx-privacy/
Contact: info.gamestemx@gmail.com