# Bachi Doku: Logic Puzzle — Sudoku Brain & Grid Challenge

> Sudoku Brain & Grid Challenge (iPhone/iPad app by CEREMESH CO., LTD.)

- Source: https://appshunter.io/ios/app/bachi-doku-logic-puzzle/id6813488860 (this page in markdown: same URL + `.md`)
- Developer: [CEREMESH CO., LTD](https://appshunter.io/developer/6803387882)
- Category: Games, Casual, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 48 MB
- Languages: American English
- Released: 2026-10-06
- Data updated: 2026-10-09

## What is Bachi Doku?

Challenge your brain with colorful logic puzzles where every Bachi must find the perfect place.

Bachi Doku: Logic Puzzle combines the satisfying deduction of Sudoku with colorful grid puzzles and simple placement rules.

SIMPLE RULES, CLEVER LOGIC

Every puzzle follows four rules:

• Exactly one Bachi in every row
• Exactly one Bachi in every column
• Exactly one Bachi in every colored region
• Bachi cannot touch diagonally

Study the grid, mark impossible cells with X, eliminate possibilities, and use logic to discover the unique solution.

THOUSANDS OF PUZZLES

Progress through thousands of logic puzzle levels across:

• 5×5 grids
• 6×6 grids
• 7×7 grids
• 8×8 grids

Start with approachable puzzles and gradually take on more challenging boards that require deeper reasoning and careful deduction.

A DIFFERENT KIND OF SUDOKU CHALLENGE

There are no numbers to calculate or place. Instead, use rows, columns, colored regions, and neighboring cells to determine where each Bachi belongs.

If you enjoy Sudoku, logic puzzles, brain games, grid puzzles, and deduction challenges, Bachi Doku offers a fresh puzzle to solve at every level.

THINK AT YOUR OWN PACE

There is no timer. Take your time, study every possibility, mark cells with X, and find the next logical move.

Use Undo when needed or get a Hint when you are stuck.

CUTE PIXEL ART

Enjoy colorful pastel grids, charming Bachi characters, and a clean pixel art style designed to keep every puzzle clear and easy to read.

FEATURES

• Thousands of logic puzzle levels
• Sudoku inspired logic gameplay
• Brain puzzles and grid puzzles
• Unique puzzle solutions
• Color region challenges
• 5×5, 6×6, 7×7 and 8×8 grids
• Progressive difficulty
• Logic and deduction challenges
• Hints and Undo
• No timer
• Leaderboards
• Cute pixel art graphics
• Simple controls

Put your logic skills to the test and see how many Bachi Doku puzzles you can solve.

## Is Bachi Doku safe?

Not enough ratings yet to assess Bachi Doku.

## Is Bachi Doku legit?

Bachi Doku: Logic Puzzle appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Bachi Doku is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-06

No release notes.

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## More apps by CEREMESH CO., LTD

- [Bachi Bounce: Ball Arcade](https://appshunter.io/ios/app/bachi-bounce-ball-arcade/id6803387880)
- [Bachi Connect Onet Tile Puzzle](https://appshunter.io/ios/app/bachi-connect-onet-tile-puzzle/id6805339855)
- [Bachi Block: Falling Puzzle](https://appshunter.io/ios/app/bachi-block-falling-puzzle/id6806629855)
- [Bachi Flow: Pixel Sort Puzzle](https://appshunter.io/ios/app/bachi-flow-pixel-sort-puzzle/id6809140415)

All apps by CEREMESH CO., LTD: https://appshunter.io/developer/6803387882

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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 2026-10-09.*