Sudoku: Variants & Classic

Contains adsIn-app purchases
13.6K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
Learn more
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About this game

🧠 Sudoku & Variants by Logic Wiz – The Ultimate Free Sudoku & Logic Puzzles App

“Honestly, this is the coolest game that exists.” ⭐⭐⭐⭐⭐ — Logic Wiz Player


Looking for the best free Sudoku experience? Discover Sudoku & Variants by Logic Wiz – a fun, relaxing, and brain-boosting logic puzzles and number puzzle game. Whether you're a beginner searching for Sudoku free games or a puzzle master, this Sudoku game is designed to sharpen your mind and provide a daily mental workout.


Inspired by Cracking the Cryptic

Fans of Cracking the Cryptic and the global puzzle community will feel right at home. Sudoku & Variants by Logic Wiz is the premier Sudoku game for solvers who value handcrafted, clever puzzles that rely on deep logic rather than guessing. We bring the world-class quality of professional logic enthusiasts directly to your mobile device.


Master Over 40 Sudoku Variants

Why play just one style when you can explore the entire world of number puzzles? Enjoy your classic Sudoku puzzle, and then dive into over 40 exciting variants including:

• Killer Sudoku: A thrilling mix of Sudoku and arithmetic.

• Sandwich Sudoku: Use crust clues to find the filling numbers.

• Arrow Sudoku: Follow the arrows for a unique logic twist.

• Jigsaw Sudoku: Also known as Irregular Sudoku, where regions aren’t just squares!

• Thermo, Windoku, Palindrome, and more: Each variant offers a fresh challenge for your brain.


🧩 Features to Help You Level Up:

• Free Sudoku & Logic Puzzles: Access thousands of handcrafted boards at no cost.

• Smart Hints: Our advanced AI doesn't just give you the answer; it explains the logic behind the next move—helping you learn and improve.

• Handcrafted Boards: No computer-generated fluff. Every puzzle is a unique logic game masterpiece.

• Themed Weekly Challenges: Keep your brain engaged with creative topics and fresh content every week.

• Offline Sudoku: Play your favorite number puzzles anywhere, even without an internet connection.

• Six Difficulty Levels: From "Beginner" to "Master"—there is a challenge for everyone.


The Variants List:

Classic Sudoku, Killer Sudoku, Sandwich Sudoku, Jigsaw (Irregular) Sudoku, Thermo, Diagonal, Arrow Sudoku, 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, Axia.


Additional Game Features:

• Multiple variants on a single board for ultimate complexity.

• Cloud Sync - Never lose your progress on any device.

• Dark & Light themes for comfortable day or night play.

• Advanced Pencil Marks: Multiple styles and auto-removal options.

• Combinations Panel: Essential for Killer Sudoku and Sandwich Sudoku experts.

• Performance Tracking: Detailed statistics to watch your logic skills grow.


If you are a fan of mind games, strategy puzzles, or daily brain training, Logic Wiz is the free Sudoku app you’ve been looking for. Download today and join the community of solvers who love the art of logic puzzles!
Play Killer, Sandwich, Arrow, Chess, Thermo, Jigsaw & 35+ Sudoku variants!
Updated on
Oct 13, 2026
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

12.3K reviews
Jacob Hutchingame
August 12, 2026
My fingers are big so I enter a typo a few times a puzzle. But instead of being able to quickly change the number to what I want to actually put in, it tells me I made a mistake and forces a 30 second ad down my throat. Once the ad is over, let's say I now forget to hit the undo button (due to the break in thought flow caused by the ad) and stick the proper number in, now my pencil marks got affected and bam, another "error" to a missing pencil mark and another ad. What a way to ruin a good app.
Did you find this helpful?
Logic-Wiz
August 12, 2026
Thank you for your feedback, and sorry for the frustration. Two settings should help. Turn OFF 'Game Settings' => 'Show Keypad Tabs' to make the digit buttons bigger. Set 'Game Settings' => 'Show Errors' => 'Delayed', so a typo you correct yourself is not counted as an error. 'Never' turns error marking off entirely.
M. Bell
July 27, 2026
I rarely bother leaving a review but this app is so excellent I felt I had to since I've been playing for months. The free version alone is great with loads of variants (thousands of puzzles) and they offer weekly puzzles with the paid ones so you can see if you like them. Ads are always short, UI clean, offline play, devs active. If you like sudoku or just logic puzzles in general this is the one you should download. I've tried tons, this is the best one and it's not even close.
2 people found this review helpful
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Logic-Wiz
July 27, 2026
Thank you so much for your wonderful review! We truly appreciate your kind words and support. It means a lot to us. We're delighted to hear that you're enjoying the game, and we hope it continues to bring you many hours of fun and challenge!
MikeTheHomelessGuy
May 14, 2025
Nice clean interface for playing sudoku and I found the variants that they have interesting. I was only able to play a dozen or so games before I would get a popup saying can't show ad, go premium or cancel. I assume it's my adblocker interfering with autoplay ads so no points off for them not loading; frankly I'd rather they can't play. it does mean this game is a very expensive app with a free trial or a very ad ridden app so less a star for that.
1 person found this review helpful
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Logic-Wiz
May 16, 2025
Thank you for your review. Ad blocker can certainly cause the behavior you described. The game has tens of thousands of free puzzles and premium puzzles are offered for free in the weekly challenge. Ads help us offer the app for free.

What’s new



A New Logic Wiz Update Is Here!

Get ready for more puzzles, more possibilities, and smarter solving!

- New Free Variant - Vertex!
_ New Premium Variant - Dutch Flatmates.
- Improved Fill Candidates
- More Puzzles across all difficulty levels
- Various enhancements, improvements, and bug fixes


We hope you enjoy this release!