NumberNest
Games
Only for iPhone
Free
iPhone
Solve fresh Sudoku puzzles, race the clock, and build your personal best across four difficulty levels.
Sudoku Challenge brings a focused, score-driven take on the classic number puzzle.
Choose your challenge:
• Easy — 40 clues for a welcoming start
• Medium — 33 clues for a deeper test
• Hard — 27 clues for experienced solvers
• Inferno — 22 clues for an extreme challenge
Every puzzle is a race against the clock. Select a cell, enter a number, and get immediate feedback as you solve. Incorrect entries are highlighted and removed, while time penalties keep every decision meaningful.
Build your record with:
• Timed Sudoku gameplay
• Four difficulty levels
• Score, completion, and best-time tracking
• Personal profile name and photo
• Shareable achievement cards
Whether you have a few minutes or want to take on a serious logic challenge, Sudoku Challenge gives you a fresh grid and a clear goal: solve it before time runs out.
Your profile and game progress are stored on your device.
Sudoku is a logic-based number-placement puzzle that primarily tests and enhances the following cognitive skills and abilities:
Logical Reasoning: Sudoku requires zero arithmetic; it relies entirely on logic. Players must use deduction and elimination strategies (e.g., Naked Singles, Hidden Pairs) to determine the correct placement of missing numbers.
Observation and Attention to Detail: Players must scan the grid across rows, columns, and subgrids to spot patterns, missing values, and subtle opportunities, which sharply improves visual scanning and focus.
Working Memory: Solving advanced puzzles requires holding multiple candidate digits and potential deduction paths in mind simultaneously, strengthening short-term memory and processing capacity.
Pattern Recognition & Spatial Awareness: Successfully navigating the game requires seeing the board holistically—balancing the demands of rows, columns, and 3×3 blocks at the same time to avoid logical deadlocks.
Patience and Problem-Solving Resilience: High-level puzzles often feature sticking points where blind guessing leads to failure. Sudoku trains a disciplined, systematic approach to tackling complex problems step by step.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
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The developer, Dang Van Son, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Dang Van Son
- Size
- 8.4 MB
- Category
- Games
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Copyright
- © Dang Van Son