Lazy Sudoku

Lazy on the notes. Sharp on the logic. A clean, ad-free Sudoku that takes care of the bookkeeping so you can enjoy the puzzle. Pencil marks update themselves. Hints show you where to look when you're stuck. Classic 9×9 or Diagonal Sudoku — relax with an easy one, or take on something harder. FEATURES • Automatic pencil marks — notes stay current while you play • Helpful hints — three levels, from a gentle nudge to a step-by-step walkthrough drawn on the grid • Classic Sudoku and Diagonal Sudoku (X-Sudoku) — both diagonals join rows, columns, and boxes as rules • Five difficulty levels — Easy through Diabolical, with curated puzzles in each • Three modes — Relaxed for clean play, Standard for everyday solving, Deep when you want every tool • Scan puzzles with on-device OCR — newspapers, books, printed sheets • Create your own — paste from anywhere, or build with live validation • Save multiple games per difficulty — pause and pick up any time • Track your progress — solved counts, time, personal bests • Made for stylus — handwriting, pressure-sensitive paper mode on supporting devices • Phones and tablets — adaptive layout, left-handed mode HINTS THAT ACTUALLY TEACH Most "teaching" sudoku apps name the technique and call it teaching. Lazy Sudoku walks you through it. Step-by-step spotting shows you where to look. Step-by-step eliminations show you why the move works. Drawn on the grid, explained in plain English. Get unstuck without being told the answer. AD-FREE AND OFFLINE No ads. No banners. No interruptions. Bundled puzzles, on-device hints, on-device OCR. The internet only enters when you want a new puzzle pack. We do the bookkeeping. You do the thinking. Lazy on the notes. Sharp on the logic.