Sudoku Sagax: Number Puzzle

Sudoku Sagax is a sudoku number puzzle: fill the 9×9 grid with the digits 1 to 9 using logic alone — no guessing, no math. HOW TO PLAY Place the digits 1 to 9 so that every row, column and 3×3 box contains each one exactly once. Tap a cell, then a number; turn on Notes to pencil in a cell's candidates. Every puzzle is generated on your device, has a single solution and can be solved by deduction alone: a logic puzzle and brain game with a clean, modern design. NINE LEVELS, BEGINNER TO EXPERT Start with a gentle Beginner grid and work your way up to Expert. Easier levels can be solved one deduction at a time; at Hard and Expert you will need pencil notes and sharper techniques. There is always a challenge that fits. FEATURES • 9 difficulty levels, from 46 to 24 given numbers • A different puzzle every game, always with a unique solution • Notes: pencil in the candidates of a cell • Undo and erase • Timer with pause — or switch it off • Show errors — optional, off by default • Hint button fills in a correct number (+30 s) — optional • Scoreboard per level: your 10 fastest times • Relaxing music and sound effects (can be turned off) • Clean, distraction-free interface for phones and tablets • Play offline, anywhere — no internet connection needed • In English, Portuguese, Spanish, French and German THE SCIENCE BEHIND IT Sudoku is pure deduction: no arithmetic, just logic. Large studies link regular number-puzzle play with better attention, reasoning and memory, and long-term research associates mentally stimulating games with healthier cognitive aging. The app's Info screen summarizes the science, with full scientific references. Sudoku Sagax is for anyone who enjoys sudoku, number puzzles, logic games and brain teasers; play for two minutes or twenty, at your own pace. A Sagax Games title. Developed by Tekinsight — Information Technologies.