# Sudoku 17 — The most difficult Sudoku.

> Extremely difficult Sudoku puzzles with the minimum number of clues for a unique solution. (iPhone/iPad app by 梓彬 陈.)

- Source: https://appshunter.io/ios/app/sudoku-17/id1335709135 (this page in markdown: same URL + `.md`)
- Developer: [梓彬 陈](https://appshunter.io/developer/1127755422)
- Category: Games, Entertainment, Puzzle, Trivia
- Price: Free
- Rating: 3.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 24 MB
- Languages: American English, Arabic, Dutch, French (France), German (Germany), Hindi, Italian, Japanese, Korean, Norwegian Bokmål and 8 more
- Released: 2018-01-17
- Data updated: 2026-08-29
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-17/id1335709135/reviews.md

## What is Sudoku 17?

Mathematicians have proven that Sudoku requires at least 17 cues to have a unique solution. Sudoku 17 collects all the hardest game levels, with a total of 49,151 levels, all with only 17 tips. For players who like challenges, this will be a very good experience. Sudoku 17 is not a game for novices, it is a very difficult game. If you think you have enough logical reasoning, try the hardest Sudoku.

## Key features

- Minimum 17 clues for unique solutions
- 49,151 challenging levels
- Designed for advanced logic players
- Focus on difficult game levels
- Tests logical reasoning skills

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/sudoku-17/id1335709135/reviews.md

### 1/5 — Horrible

*2024-03-08*

Doesn’t have any instructions or highlight abilities can’t tell if a number I put in is right or wrong.

### 1/5 — 메모기능도 만들어주세요.

*2021-10-27*

메모 기능도 만들어주세요.
1레벨에서 오른쪽 두번째 네모칸에 5를 둘곳이 없습니다 수정해주세요

## Frequently asked questions about Sudoku 17

### What makes Sudoku 17 so difficult?

Sudoku 17 features puzzles mathematically proven to have unique solutions with the minimum of 17 clues. This design ensures an exceptionally high level of difficulty, intended for players with advanced logical reasoning.

### How many levels are available in Sudoku 17?

Sudoku 17 offers a vast collection of 49,151 levels, all designed to be the hardest Sudoku games with only 17 tips.

### Is Sudoku 17 suitable for beginners?

No, Sudoku 17 is explicitly not a game for novices. It is a very difficult game designed for players who believe they have sufficient logical reasoning skills.

### Does Sudoku 17 have ads?

Yes, Sudoku 17 contains advertisements. As a free game, ads are used to support its development and availability.

### What devices can I play Sudoku 17 on?

Sudoku 17 is available on iPhone, iPad, and iPod devices, allowing a wide range of Apple users to access its challenging puzzles.

### When was Sudoku 17 last updated?

The latest version of Sudoku 17 was released on December 18, 2019. The initial release date for the app was January 17, 2018.

### What is the age rating for Sudoku 17?

Sudoku 17 has an age rating of 4+, making it suitable for a broad audience interested in logic puzzles.

### Can I play Sudoku 17 offline?

The provided information does not specify whether Sudoku 17 can be played offline. However, given its nature as a puzzle game, offline play is often a common feature.

## Version history (last 3 releases)

### 1.2 — 2019-12-18

Fix bugs.

### 1.1 — 2019-12-07

Fix bugs.

### 1.0 — 2018-01-17

No release notes.

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## More apps by 梓彬 陈

- [Shake-Phone](https://appshunter.io/ios/app/shake-phone/id1158204335)
- [2-Sides](https://appshunter.io/ios/app/2-sides/id1164950016)
- [Number Games - 8 Balls](https://appshunter.io/ios/app/number-games-8-balls/id1444329860)
- [Block Puzzle - Pro](https://appshunter.io/ios/app/block-puzzle-pro/id1449116016)
- [Block Puzzle - 1010 Block](https://appshunter.io/ios/app/block-puzzle-1010-block/id1459482351)

All apps by 梓彬 陈: https://appshunter.io/developer/1127755422

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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 2026-08-29.*