ZenSudoku: Offline Sudoku

Sudoku the way it should be: just you and the grid. REAL PUZZLES, REAL DIFFICULTY A genuine puzzle bank with verified solutions — from gentle warm-ups to properly hard grids. Every puzzle is solvable by pure logic. No guessing. HINTS + OFFLINE TECHNIQUE LIBRARY Pencil-mark notes, a clean keypad, and mistake highlighting you control. Hints point you at the next move — and the built-in static offline technique library covers the strategies behind the solves (naked pairs, pointing, box-line reduction, and more). No AI, no network — just the reference. LEARN AS YOU PLAY A built-in static offline technique library covers the strategies behind the solves: naked pairs, pointing, box-line reduction, and more. No AI, no network. You'll finish harder puzzles than you started with. YOUR PACE, YOUR PLACE A quiet timer if you want it — or hide it and just think. Fully offline: planes, subways, cabins, anywhere. No signal needed. NOTHING BETWEEN YOU AND THE GRID No ads over your puzzle. No energy systems. No accounts. No subscriptions. No tracking. Pay once, play forever. ZenSudoku: breathe · focus · solve. ⭐ More free apps from us + a free App of the Day: t.me/sovereignapps

ZenSudoku v1.0.12: Android 16 (API 36) performance tuning, verified live AdMob integration with docked anti-distraction banner, zero hardcoded names, and refined calm puzzle experience.