# Sudoku: Pieces - Block Jigsaw — Fit Number Puzzle & Grid Logic

> A Sudoku and jigsaw puzzle hybrid game with five difficulty levels. (iPhone/iPad app by Tianyu Lu.)

- Source: https://appshunter.io/ios/app/sudoku-pieces-block-jigsaw/id6810938707 (this page in markdown: same URL + `.md`)
- Developer: [Tianyu Lu](https://appshunter.io/developer/6810794695)
- Category: Games, Casual, Puzzle
- Price: Free with in-app purchases (on sale, was $1.99)
- Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 12 MB
- Languages: American English
- Released: 2026-09-23
- Data updated: 2026-10-31
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-pieces-block-jigsaw/id6810938707/reviews.md

## What is Sudoku?

Forget scribbling tiny pencil notes in empty cells—this time, the numbers are already built into the puzzle pieces.

Sudoku: Pieces blends the tactile satisfaction of a block jigsaw puzzle with classic 9×9 Sudoku logic. Instead of typing digits one by one, you drag multi-cell numbered blocks onto the board. Your goal is twofold: every piece must physically fit the grid, and every row, column, and 3×3 box must contain the digits 1 to 9 without repeats.

A block that fits a gap perfectly might still clash with a number down the row. Spot the clues, swap matching shapes, and watch the whole board click into place.

WHY IT FEELS DIFFERENT
• Spatial Jigsaw Meets Number Logic: Combine shape-fitting intuition with Sudoku deduction. Placing a single block locks multiple digits at once.
• Any Valid Solution Wins: You never have to guess a predetermined layout. If all blocks fit and Sudoku rules are met, you win.
• Clean, Effortless Controls: Tap any digit to highlight matching numbers across the board and tray. Reposition placed blocks anytime, or check the reference solution when you get stuck.

FIVE DIFFICULTY LEVELS
• Easy & Normal: Generous fixed clues and compact blocks for a relaxing brain warm-up.
• Hard & Expert: Sparse clues and larger, trickier shapes that demand deeper deduction.
• Hell Mode: Zero starting clues. An empty 81-cell board where only block shapes and pure logic guide you.

BUILT FOR EVERYDAY PLAY
• Play Offline Anywhere: No Wi-Fi and no account required—ideal for commutes, flights, or winding down.
• Separate Auto-Save Per Difficulty: Switch between Easy and Hell anytime without losing your ongoing puzzle.
• Personal Best Records: Track your total wins and fastest solve times on your device.

## Key features

- Sudoku logic with jigsaw piece fitting
- Dual-thinking placement mechanics
- Five distinct difficulty levels
- Progress saved per difficulty
- Track wins and best times
- Multiple input methods

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Is Sudoku safe?

Not enough ratings yet to assess Sudoku.

## Is Sudoku legit?

Sudoku: Pieces - Block Jigsaw appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Sudoku is 65 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/sudoku-pieces-block-jigsaw/id6810938707/reviews.md

### 5/5 — Fun twist on Sudoku!

*2026-10-21*

The puzzles are challenging but not frustrating, and it’s really satisfying to figure them out. Highly recommend!

### 5/5 — Best sudoku game ever

*2026-09-23*

Highly recommend

## Frequently asked questions about Sudoku

### What is Sudoku: Pieces?

Sudoku: Pieces is a mobile game that merges the number-placement logic of Sudoku with the shape-fitting challenge of jigsaw puzzles. Players place numbered blocks onto a grid, satisfying both Sudoku rules and spatial constraints.

### How do you play Sudoku: Pieces?

You drag numbered blocks onto a 9x9 board. Each block must fit the available space and its numbers must adhere to Sudoku rules (1-9 without repeats in rows, columns, and 3x3 boxes). Any valid solution is accepted.

### What are the difficulty levels in Sudoku: Pieces?

Sudoku: Pieces offers five difficulty levels: Easy, Normal, Hard, Expert, and Hell. Hell mode presents a completely blank board with no starting clues, offering the ultimate challenge.

### Can I save my progress in Sudoku: Pieces?

Yes, your progress is saved on your device. There is a separate ongoing puzzle for each difficulty level, allowing you to switch between challenges and return to them later.

### Does Sudoku: Pieces have ads?

No, Sudoku: Pieces does not contain advertisements. It is a paid application, offering an uninterrupted puzzle-solving experience.

### What devices does Sudoku: Pieces support?

Sudoku: Pieces is available for iPhone, iPad, and iPod devices. It is designed for iOS users.

### How often is Sudoku: Pieces updated?

The latest version is 1.0.3, last updated on September 28, 2026. While specific update frequency isn't detailed, this indicates recent development activity.

### What is the age rating for Sudoku: Pieces?

Sudoku: Pieces has an age rating of 4+. This suggests it is suitable for young children and general audiences.

## Version history (last 5 releases)

### 1.0.8 — 2026-10-30

Bug fixes.

### 1.0.7 — 2026-10-24

Now supports iPhone Duo.

### 1.0.6 — 2026-10-21

Bug fixes and stability improvements.

### 1.0.5 — 2026-10-19

Added multilingual support.

### 1.0.4 — 2026-10-05

Bug fixes

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## More apps by Tianyu Lu

- [2048 Twisted](https://appshunter.io/ios/app/2048-twisted/id6810794693)
- [Mahjong Mixup](https://appshunter.io/ios/app/mahjong-mixup/id6814936261)
- [Ruler: CM, MM & Inches](https://appshunter.io/ios/app/ruler-cm-mm-and-inches/id6815516308)
- [Bubble Level: Spirit & Angle](https://appshunter.io/ios/app/bubble-level-spirit-and-angle/id6816330217)
- [Skillball Rally - Marble Race](https://appshunter.io/ios/app/skillball-rally-marble-race/id6819093734)

All apps by Tianyu Lu: https://appshunter.io/developer/6810794695

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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 2026-10-31.*