Sudoku: 150 Levels Puzzle

Free offline Sudoku: a classic number puzzle and logic game with 150 handcrafted levels across 6 difficulty tiers. Sudoku is the ultimate 9×9 number puzzle for brain training and mind games. This clean, distraction-free app is perfect for a quick logic workout or a deep math puzzle challenge — pick up right where you left off, anytime, anywhere, no wifi needed. 150 levels, 6 tiers, real progression Climb through Beginner, Easy, Medium, Hard, Expert, and Extreme. Each tier holds 25 unique Sudoku puzzles — 150 in total. Unlock the next tier as you win, and advance level by level so there's always a clear next goal, not an endless random grid. Everything a real Sudoku player needs - 100% offline — no wifi, no account, no sign-in required - Pencil notes mode — jot candidate numbers like on paper; related cells update as you play - Smart hints — reveal a cell when you're stuck (limits vary by difficulty) - Undo & auto-save — pause, switch apps, or close the game; your grid restores automatically - Smart highlighting — tap a number to highlight matches across the board - Optional error check — auto-check mistakes, or play without it for a classic feel - Detailed stats — best times, games played, wins, and streaks per difficulty - Light & dark theme — comfortable visuals for day or night sessions Classic rules, real logic Fill every row, column, and 3×3 box with digits 1–9 without repeating. A true logic game — no luck, no guessing, no timers forcing your hand. Perfect for - Daily brain training, mind games, and logic puzzles - Commutes, flights, and travel (works in airplane mode) - Sudoku beginners learning step by step through structured levels - Experienced solvers chasing faster times on harder tiers Download this free number puzzle game and work your way through all 150 Sudoku levels.