Sudoku & Variants by Logic Wiz

Contains adsIn-app purchases
4.6
9.52K reviews
500K+
Downloads
Content rating
PEGI 3
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About this game

🧠 Sudoku & Variants by Logic Wiz – Free Relaxing Brain Training Puzzle Game



Discover the ultimate free Sudoku experience with Sudoku & Variants by Logic Wiz – a fun, relaxing, and brain-boosting number puzzle game. Whether you're a beginner or a puzzle master, this game will challenge your logic and sharpen your mind.



Enjoy the classic Sudoku puzzle, and explore over 35 exciting Sudoku variants that introduce new rules and strategies. Each variant offers a fresh logic twist—like Killer Sudoku, Diagonal Sudoku, Sandwich Sudoku, Arrow Sudoku and many more—to keep your brain engaged and thinking differently.



Take on our Themed Weekly Challenges, where curated puzzle sets revolve around fun, creative topics to keep things fresh and engaging week after week.



🧩 Features:

• Play a wide variety of puzzles for free

• Classic Sudoku puzzles for all skill levels

• Over 35 unique Sudoku variants to explore

• Thousands of carefully handcrafted puzzles for a high-quality solving experience

• Unique logic puzzles that train different parts of the brain

• Themed Weekly Challenges with creative puzzle sets

• Smart hints and strategy explanations—no guessing required

• Beautiful, minimal design for focused play

• Six difficulty levels, from Beginner to Master

• Perfect for daily brain training and relaxation

• New variants and boards are added occasionally



The Variants:

Classic Sudoku, Killer Sudoku, Sandwich Sudoku, Jigsaw (Irregular) Sudoku, Thermo, Diagonal, Arrow, Windoku, Skyscraper, Zipper Line, X-Sum, Little Unique Killer, Consecutive, Non-consecutive, Palindrome, Kropki, German Whisper, Dutch Whisper, Chess Knight, Chess King, Bishop, Greater-than, XV, Reflection, Quadruple, Slingshot, Slow Thermo, Even Odd, Between Lines, Lockout lines, Running Cells, Ascending Series, Renban, Universal, Couples, Twisted Consecutive



Additional Game Features:

• Multiple variants on a single board

• Unique solution to each puzzle

• All boards designed and created by Logic-Wiz

• Gallery game view

• Play multiple quests & games concurrently

• Cloud Sync - Synchronize your progress over multiple devices

• Keep Screen Awake

• Light and Dark Theme

• Sticky digit mode

• Filter by your favorite variants

• Remaining cells of a digit

• Select multiple cells at once

• Select multiple cells at distributed locations of the board

• Multiple pencil marks styles

• Double notation

• Auto remove pencil marks

• Highlight matching digits and pencil marks

• Multiple error modes

• Performance tracking for each puzzle

• Statistics and Accomplishments

• Unlimited Undo/Redo

• Various cell marking options – highlights and symbols

• Combinations Panel for Killer and Sandwich boards

• Track and improve solving time

• Board preview

• Easy resumption of unfinished boards

• Mobile Phones and Tablets



Inspired by the world of Cracking the Cryptic and other advanced puzzle communities, Sudoku & Variants by Logic Wiz is ideal for solvers who love clever twists and deep logic without the need to guess.



Whether you're looking for a relaxing mind game or a challenging strategy puzzle, this free Sudoku app is your go-to for logic fun.
Updated on
Mar 25, 2025
Available on
Android, Windows

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 3 others
This app may collect these data types
Location, Personal info and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
8.76K reviews
Erikson Eerie
April 3, 2025
I used to love this app, but I now came back 3 years later, and it forced me to update for it to work, and now nearly all of my "in progress" sudokus are gone. I had more than 30 there before, and they have all disappeared. It makes me not want to use this app, if you'll just delete all the sudoku before I can even finish them. The app also seems to be much worse now in functionality with most variants locked behind a paywall. And it also seems the Ads make it unplayable.
2 people found this review helpful
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Logic-Wiz
April 3, 2025
All the free variants are still free, nothing changed. Themed weekly challenge, are still in the app and are coming every week. Weekly challenges are available for a few weeks and then they are gone, it has always been that way. Not sure why you have puzzles disappeared from your in progress, contact our support. We probably used to love you too.
Kristine
March 29, 2025
I adore this app. I'd tried killer sudokus before but the amount of variations on sudoku here is so much fun! The team behind it also seem really lovely, and regularly create more sudokus in the "adventures" bit of the app. Very simple to navigate, but also, in-game, so intuitive. And I've seen new features and improvements even in the short-ish time I've had the app. Combinations right there for killer, different colours you can use, fill in quicker at the end, etc. I'm so hooked.
1 person found this review helpful
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Logic-Wiz
March 30, 2025
Thank you so much for your review. We are very pleased that you enjoy our app.
Matt Hall
April 19, 2025
This is a real challenge for people interested in puzzles. The variations on the classic sudoku rules make for a great playing experience. You can play offline (at time of writing) so no ads which makes for a smooth playing experience. Lots of free puzzles for people who don't want to pay for the full version.
Did you find this helpful?
Logic-Wiz
April 20, 2025
Thank you so much for your review. We are very pleased that you enjoy our app. We do have Ads in the app, though we try to minimize them as much as we can, and we let our users play without Ads for relatively long time, to account for flights and similar offline activities.

What’s new

Dear Logic Wizards,

A "new minor release" is here—let’s dive in!

What's in This Release:

- "Fresh Puzzles" – Stunning new premium & free puzzles across all difficulty levels.
- "Bug Fixes & Enhancements" – Smoother gameplay, better experience!

Enjoy the challenge & happy solving!

– The Logic Wiz Team