Sudoku Custom
The Sudoku app that teaches you how to think
What it does
Free Sudoku solver: 30+ technique tutorials with step-by-step demos, tens of thousands of puzzles (7 difficulty levels), photo recognition (high accuracy, fast scan), powerful solver (solves world's hardest Sudoku), global leaderboard, specialized training, customizable theme & board. Learn X-Wing, Swordfish, ALS, Forcing Chains.
Does the same job
all alternatives →
- SWSudoku with 0 Bells or Whistles2023 · ▲48
Hello HN, I've created a new Sudoku app for iOS and Android that prioritizes simplicity and privacy. It's free to download and use, and I'd be grateful for any feedback or suggestions. Features: > 4 difficulty levels, accessible at any time > No personal data collection of any kind > Clean, minimalistic design that focuses on the game > Takes up significantly less space than other popular apps (by a factor of about 10x) > Minimal use of advertisements I was frustrated by how many of the popular Sudoku apps feel excessively over-engineered, consume a lot of storage space and some that even…
- SPSudokuVariants – play and construct different variants of Sudoku2025 · sudokuvariants.com · ▲28
Hi HN, I've been working on this Sudoku web app for the past couple of years, on and off during free weekends and afternoons. I started working on it because I was bored during COVID, and Cracking the Cryptic had just become popular on YouTube, which got me wondering how hard it could be to make a Sudoku app. The main idea is for the app to understand the constraints and know how to solve Sudoku grids (and not just be a simple Sudoku drawing/playing app). When it comes to classic Sudoku, the solver doesn't support anything more complicated than X-Wing, but it understands the…
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