Lazy Sudoku

Lazy Sudoku

Solve Smarter, Not Harder

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Free
In-App Purchases

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Details

  • Released
  • Updated
  • January 14, 2026
  • June 21, 2026

Features

Lazy Sudoku video #1 for iPad
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About

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 Apple Pencil — handwriting, pressure-sensitive paper mode, hover support on iPad • Native on iPhone and iPad 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, ALWAYS No ads. No banners. No interruptions. Just Sudoku. We do the bookkeeping. You do the thinking. Lazy on the notes. Sharp on the logic. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in Lazy Sudoku

1.0.4

June 21, 2026

New in this version: • Diagonal Sudoku (X-Sudoku) — both diagonals join rows, columns, and boxes as ninth-rule units. First-game tutorial, OCR auto-detect, full share-and-print round-trip. • Relaxed Mode gets a tutor — Explain narrates why a digit goes where it does, not just what to place. • Shadow Notes — faint ghost candidates show what's possible in a cell without cluttering your grid. • Sharing and Print — Copy and Get PDF actions in the share dialog, and the printed PDF includes your pencil marks. • Paper Mode deepens — Full Paper as a feel rather than a mode, naked-single hints one at a time, clearer pressure feedback. • New techniques — Fireworks, Bowman's Bingo, Aligned Pair Exclusion, Pattern Overlay Method, Remote Pair. They surface in hints and the picker when they apply. • Watched Techniques — mark a rare pattern and the app flags it the moment it shows up in a scan.

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Subscription plans

Lazy Sudoku Pro

Advanced solving techniques and visualisations

$17.991 Year
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In-App Purchases

$49.99

Lazy Sudoku Pro - Lifetime

Advanced solving techniques and visualisations