# Sudoku.Classic — Improve brain IQ every day

> Classic number-placement puzzle game with tutorial and history. (iPhone/iPad app by 昌涛 刘.)

- Source: https://appshunter.io/ios/app/sudokuclassic/id1160711663 (this page in markdown: same URL + `.md`)
- Developer: [昌涛 刘](https://appshunter.io/developer/472600246)
- Category: Games, Entertainment, Puzzle, Word
- Price: Free
- Rating: 4.50/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 27 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, Russian, Chinese (Simplified, China), European Spanish and 1 more
- Released: 2016-11-06
- Data updated: 2026-06-10
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/sudokuclassic/id1160711663/reviews.md

## What is Sudoku.Classic?

Tutorial:
 The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids that compose the grid (also called "boxes", "blocks", "regions", or "subsquares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution.

History:
The modern Sudoku was most likely designed anonymously by Howard Garns, a 74-year-old retired architect and freelance puzzle constructor from Connersville, Indiana, and first published in 1979 by Dell Magazines as Number Place (the earliest known examples of modern Sudoku).[1] Garns's name was always present on the list of contributors in issues of Dell Pencil Puzzles and Word Games that included Number Place, and was always absent from issues that did not.[10] He died in 1989 before getting a chance to see his creation as a worldwide phenomenon.[10] If Garns was familiar with any of the French newspapers listed above is unclear.

The puzzle was introduced in Japan by Nikoli in the paper Monthly Nikolist in April 1984 as Sūji wa dokushin ni kagiru (数字は独身に限る?), which also can be translated as "the digits must be single" or "the digits are limited to one occurrence" (In Japanese, dokushin means an "unmarried person"). At a later date, the name was abbreviated to Sudoku (数独) by Maki Kaji (鍜治 真起 Kaji Maki?), taking only the first kanji of compound words to form a shorter version.[10] "Sudoku" is a registered trademark in Japan and the puzzle is generally referred to as Number Place (ナンバープレース Nanbāpurēsu?) or, more informally, a portmanteau of the two words, Num(ber) Pla(ce) (ナンプレ Nanpure?). In 1986, Nikoli introduced two innovations: the number of givens was restricted to no more than 32, and puzzles became "symmetrical" (meaning the givens were distributed in rotationally symmetric cells). It is now published in mainstream Japanese periodicals, such as the Asahi Shimbun.

The Times of London began featuring Sudoku in late 2004 after a successful appearance in a local US newspaper, from the efforts of Wayne Gould, and rapidly spread to other newspapers as a regular feature. Gould devised a computer program to produce unique puzzles rapidly.

## Key features

- Classic Sudoku gameplay
- Interactive tutorial
- Game history
- Unique puzzle solutions
- Brain training

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sudokuclassic/id1160711663/reviews.md

### 5/5 — rgyhh

*2022-10-11*

hsghjjjhj

## Frequently asked questions about Sudoku.Classic

### How do you play Sudoku.Classic?

The objective is to fill a 9x9 grid with digits 1-9 so that each column, row, and 3x3 subgrid contains all digits without repetition. Sudoku.Classic provides a tutorial to guide you through the gameplay mechanics.

### Does Sudoku.Classic have ads?

Yes, Sudoku.Classic contains advertisements. These ads help support the free nature of the game.

### What is the history of Sudoku.Classic?

The modern Sudoku puzzle was first published in 1979 as Number Place and later introduced in Japan by Nikoli in 1984, where it was abbreviated to Sudoku. This app includes a section detailing its historical development.

### What devices is Sudoku.Classic compatible with?

Sudoku.Classic is compatible with iPhones, iPads, and iPods. It is designed for iOS devices.

### What is the age rating for Sudoku.Classic?

Sudoku.Classic has an age rating of 4+. This indicates it is suitable for children and adults.

### How often is Sudoku.Classic updated?

The latest version of Sudoku.Classic is 2.0.2, which was last updated on February 17, 2021. Updates typically include bug fixes and performance improvements.

### Can I play Sudoku.Classic offline?

The provided information does not specify offline play capabilities. However, classic Sudoku puzzles are generally playable without an internet connection once downloaded.

### What is the user sentiment for Sudoku.Classic?

Sudoku.Classic has a rating of 4.5 stars from 4 ratings, suggesting a positive user reception for its core gameplay.

## Version history (last 5 releases)

### 2.0.2 — 2021-02-17

fixed bugs

### 2.0.1 — 2020-02-23

fixed a bug!

### 2.0.0 — 2020-02-22

support iPhone X screen and bug fixed.

### 1.0.1 — 2016-12-04

- optimized
- fixed some bug

### 1.0.0 — 2016-11-06

No release notes.

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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 2026-06-10.*