Expert Sudoku Book Stress Free

Expert Sudoku Book Stress Free

Samurai Hyper Jigsaw Cross X

1.6K ratings
61 reviews
Free
With Ads

Details

  • Released
  • Updated
  • December 12, 2015
  • June 3, 2026
Expert Sudoku Book Stress Free screenshot #1 for iPhone
Expert Sudoku Book Stress Free screenshot #2 for iPhone
Expert Sudoku Book Stress Free screenshot #3 for iPhone
iphone
ipad
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About

This app offers a vast collection of over 160,000 Sudoku puzzles across four difficulty levels and four unique variations: X Sudoku, Hyper Sudoku, Jigsaw Sudoku, and Samurai Sudoku. Enjoy a relaxing, timer-free experience with helpful features like undo, pencil marks, and auto-highlighting.

160,000+ Sudoku puzzles
Four difficulty levels
X Sudoku
Hyper Sudoku
Jigsaw Sudoku
Samurai Sudoku (iPad only)
No timers
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What users say

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What's New in Expert Sudoku Book Stress Free

1.46

June 3, 2026

• Updated for the latest iOS Thanks for playing! Search for "Boy Howdy Technology" to see all our free games!

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User reviews

Boy Howdy Sudoku

Boy Howdy has the best selection of Sudoku. I’ve tried lots of other brands but Boy Howdy is the best. I like that it shows the errors right away. NO ADDS is a bonus. The rest of Boy Howdy games are fun to play I’ve played other brands but I always come back to Boy Howdy. The Fit-In word puzzles are fun too
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Expert Sudoku Game

This game is really fun. You can play without assistance or you can use options to mark tile squares so you can keep track. It has improved my skill at Sudoku. There is even a way to see if you have made a mistake! That takes the pressure off. There are days I just want to play and not work too hard. It’s satisfying played like that, too.
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Great brain game, love it.

It’s entertaining and a challenge, love playing it!!

Hard to use app and impossible to delete

I don’t usually leave reviews for apps I dislike, but this one will not allow me to delete from App Library, only from Home Screen. So just beware before downloading it and getting stuck with it.

Awesome Sudoku

My name is Isaac and I love this gam!!!!!!

Developer apps

User experience

🐞

Reported Bugs

3 issues

Numbers jumping to wrong squares

Bug

App pausing unexpectedly

Bug

Inability to delete app from device

Bug

Requested Features

4 requests

Add undo/redo functionality

Feature

Provide more challenging puzzles

Feature

Include game statistics and progress tracking

Feature

Allow customization of UI elements

Feature

FAQ

What types of Sudoku puzzles are available?

The app features four unique Sudoku variations: X Sudoku, where diagonals must also contain numbers 1-9; Hyper Sudoku, with additional 3x3 blocks; Jigsaw Sudoku, using irregularly shaped blocks; and Samurai Sudoku, a large combo of five overlapping puzzles (iPad only). Each type has 40,000 puzzles across four difficulty levels.

Is this app free to play?

Yes, the app is 100% FREE to download and play. It offers a vast collection of puzzles without any cost to the user.

What are the key features for a relaxing gameplay experience?

The app emphasizes a stress-free experience with no timers. It includes full undo support, an intuitive dual-keypad input system with auto-erasing pencil marks, and optional auto-highlighting for numbers, conflicts, and pencil marks. Sounds can also be disabled for a quiet game.

What are the difficulty levels and how many puzzles are there?

There are four difficulty levels: Easy, Medium, Hard, and Evil. For each of the four Sudoku types (X, Hyper, Jigsaw, Samurai), there are 10,000 puzzles per difficulty level, totaling 40,000 puzzles for each type and over 160,000 puzzles in total.

Can I save my progress and use other apps while playing?

Yes, your progress is automatically saved at all times. You can freely switch to other apps or take calls, and then return to pick up exactly where you left off in your Sudoku puzzle.