# Kuromasu puzzle

> Logic puzzle game to determine cell colors based on numbered clues and adjacency rules. (iPhone/iPad app by Yuki Fujimoto.)

- Source: https://appshunter.io/ios/app/kuromasu-puzzle/id1076156009 (this page in markdown: same URL + `.md`)
- Developer: [Yuki Fujimoto](https://appshunter.io/developer/467085185)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 26 MB
- Languages: American English, Japanese
- Released: 2016-01-28
- Data updated: 2026-06-24
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/kuromasu-puzzle/id1076156009/reviews.md

## What is Kuromasu puzzle?

Kuromasu puzzle is played on a rectangular grid. 
Some of these cells have numbers in them. Each cell may be either black or white. The object is to determine what type each cell is.

The following rules determine which cells are which:

Each number on the board represents the number of white cells that can be seen from that cell, including itself. A cell can be seen from another cell if they are in the same row or column, and there are no black cells between them in that row or column.
Numbered cells may not be black.
No two black cells may be horizontally or vertically adjacent.
All the white cells must be connected horizontally or vertically.

## Key features

- Grid-based logic puzzles
- Deduce cell colors
- Numbered clues
- Adjacency rules
- White cell connectivity


## Frequently asked questions about Kuromasu puzzle

### How do you play Kuromasu puzzle?

Kuromasu puzzle is played on a grid where you determine if each cell is black or white. Numbered cells indicate how many white cells are visible from them in the same row or column, with no black cells blocking the view.

### What are the rules for black cells in Kuromasu puzzle?

Numbered cells cannot be black. Additionally, no two black cells can be placed directly next to each other, either horizontally or vertically.

### What is the goal regarding white cells in Kuromasu puzzle?

The objective is to ensure that all white cells on the grid are connected to each other, either horizontally or vertically, forming a single contiguous area.

### Does Kuromasu puzzle have ads?

Yes, Kuromasu puzzle contains advertisements. This allows the game to be offered for free to players.

### What devices support Kuromasu puzzle?

Kuromasu puzzle is available on iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

### What is the age rating for Kuromasu puzzle?

Kuromasu puzzle has an age rating of 4+, indicating it is suitable for young children and general audiences.

### When was Kuromasu puzzle last updated?

The latest version of Kuromasu puzzle was released on July 11, 2021. This indicates the game has received updates since its initial release in 2016.

### What is the user rating for Kuromasu puzzle?

Kuromasu puzzle has received a perfect rating of 5.0 stars from one user review, suggesting a highly positive user experience.

## Version history (last 3 releases)

### 1.2 — 2021-07-11

bug fix

### 1.1 — 2021-07-11

Support latest iOS version.
Bug fix.

### 1.0 — 2016-01-28

This app has been updated by Apple to display the Apple Watch app icon.

## Apps similar to Kuromasu puzzle

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Gomoku-brain game](https://appshunter.io/ios/app/gomoku-brain-game/id1112078065) | 5.0 (2) | Free | Games |
| [Mathrax - Sudoku and Maths](https://appshunter.io/ios/app/mathrax-sudoku-and-maths/id645221113) | 5.0 (2) | Free | Games |
| [Kakuro - Cross sums](https://appshunter.io/ios/app/kakuro-cross-sums/id898546561) | 1.0 (1) | Free | Games |
| [Tic-Tac-Logic Classic](https://appshunter.io/ios/app/tic-tac-logic-classic/id1556011099) | 4.0 (1) | Free | Games |
| [Nine Mens Morris](https://appshunter.io/ios/app/nine-mens-morris/id1080176892) | 1.0 (2) | Free | Games |
| [Sudoku Puzzle](https://appshunter.io/ios/app/sudoku-puzzle/id736147060) | — | Free | Games |

## More apps by Yuki Fujimoto

- [Thoroughly Freecell](https://appshunter.io/ios/app/thoroughly-freecell/id849017205)
- [Mahjong Tile Solitaire](https://appshunter.io/ios/app/mahjong-tile-solitaire/id892138094)
- [Thoroughly Sichuan](https://appshunter.io/ios/app/thoroughly-sichuan/id894399422)
- [Thoroughly Pelmanism](https://appshunter.io/ios/app/thoroughly-pelmanism/id896355967)
- [Four Leaf Clover](https://appshunter.io/ios/app/four-leaf-clover/id898621721)
- [Thoroughly Honkong (Mahjong Puzzle)](https://appshunter.io/ios/app/thoroughly-honkong-mahjong-puzzle/id901291989)

All apps by Yuki Fujimoto: https://appshunter.io/developer/467085185

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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 2026-06-24.*