# Sudoku Black Belt — Achieve Sudoku Mastery

> Classic 9x9 Sudoku game with auto-pencil marks and progressive difficulty levels. (iPhone/iPad app by Bogdan Balan.)

- Source: https://appshunter.io/ios/app/sudoku-black-belt/id1639802667 (this page in markdown: same URL + `.md`)
- Developer: [Bogdan Balan](https://appshunter.io/developer/1639802669)
- Category: Games, Casual, Puzzle
- Price: Free with in-app purchases
- Rating: 4.00/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.5 · 19 MB
- Languages: English, Romanian
- Released: 2022-08-17
- Data updated: 2026-08-19
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-black-belt/id1639802667/reviews.md

## What is Sudoku Black Belt?

• Classic Sudoku – 9x9
• Auto-Pencil Marks – The real fun of Sudoku begins with pencil marks.
• Delightful Interaction – A pleasant, satisfying interaction mode, not just a paper replacement.
• Casual to Challenging Levels – Get your Yellow, Orange, Green, Blue, Purple, Brown and Black Belt!

## Key features

- Classic 9x9 Sudoku puzzles
- Auto-pencil mark feature
- Satisfying interaction mode
- Multiple difficulty levels
- Belt progression system

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Total Access | $3.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sudoku-black-belt/id1639802667/reviews.md

### 2/5 — Cell entry needs some work

*2022-09-15*

Too hard to figure out how to input an answer into a cell or just clear out a candidate. Too easy to screw up your puzzle and no way to clearly undo it.

**Developer response:** Thanks for the feedback. There is an undo button at the bottom left. And a demo button next to it to explain how the input works. But you are correct that the input is not conventional. However that is the point, once you know how to use it, it’s nicer that inputting pencil notes slowly one digit at a time. Thanks again.

## Frequently asked questions about Sudoku Black Belt

### What is Sudoku Black Belt?

Sudoku Black Belt is a classic 9x9 Sudoku puzzle game designed for iPhone and iPad. It features auto-pencil marks and a delightful interaction mode to enhance the puzzle-solving experience.

### Does Sudoku Black Belt have ads?

No, Sudoku Black Belt is ad-free, allowing for an uninterrupted puzzle-solving experience.

### What are the difficulty levels in Sudoku Black Belt?

Sudoku Black Belt offers a range of difficulty levels, from casual to challenging, represented by colored belts including Yellow, Orange, Green, Blue, Purple, Brown, and Black Belt.

### Is Sudoku Black Belt suitable for children?

Yes, Sudoku Black Belt has an age rating of 4+, making it suitable for younger players interested in logic puzzles.

### How often is Sudoku Black Belt updated?

The latest version of Sudoku Black Belt is 6.1, and it was last updated on September 20, 2022. Updates typically focus on improving gameplay and adding new content.

### What devices does Sudoku Black Belt support?

Sudoku Black Belt is available on iPhone, iPad, and iPod devices.

### What is the user rating for Sudoku Black Belt?

Sudoku Black Belt has a rating of 4.0 stars based on 4 ratings, indicating a generally positive user reception.

### Does Sudoku Black Belt offer offline play?

The provided information does not specify offline play capabilities. However, Sudoku games typically function well without an internet connection.

## Version history (last 5 of 5)

### 6.1 — 2022-09-20

• Better Buttons

### 6.0 — 2022-09-16

• Allow multiple games to be started and resumed

### 5.0 — 2022-09-05

• Speed Optimisations
• Design Improvements

### 4.0 — 2022-08-29

• Animations and design improvements

### 3.1 — 2022-08-28

• How to use Demo
• Design improvements

## Apps similar to Sudoku Black Belt

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sudoku + Auto-Note](https://appshunter.io/ios/app/sudoku-plus-auto-note/id6443801474) | 4.6 (58) | Free | Games |
| [Sudoku - The Clean One](https://appshunter.io/ios/app/sudoku-the-clean-one/id1442274281) | 4.6 (55) | Free | Games |
| [Sudoku Master Edition](https://appshunter.io/ios/app/sudoku-master-edition/id1260190370) | 4.6 (7,889) | Free | Games |
| [Sudoku·](https://appshunter.io/ios/app/sudoku/id839681682) | 4.7 (17,292) | Free | Games |
| [Sudoku :)](https://appshunter.io/ios/app/sudoku/id398990729) | 4.7 (58,951) | Free | Games |
| [Sudoku: Classic & Variations](https://appshunter.io/ios/app/sudoku-classic-and-variations/id537201666) | 4.8 (1,111) | Free | Games |

## More apps by Bogdan Balan

- [Stim Tally](https://appshunter.io/ios/app/stim-tally/id6444342899)
- [Bitcoin Profit and Loss](https://appshunter.io/ios/app/bitcoin-profit-and-loss/id6746832514)
- [Ray Relay](https://appshunter.io/ios/app/ray-relay/id6769096423)

All apps by Bogdan Balan: https://appshunter.io/developer/1639802669

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*