1.0.1 Safe to install
Unlock Your Inner Puzzle Master with Blue 81

Blue 81: Sudoku Block Puzzle offers a fresh and engaging twist on classic Sudoku, making it perfect for both beginners and puzzle enthusiasts alike.
BLUE 81: SUDOKU BLOCK PUZZLE presents an engaging fusion of classic tile-matching games and sudoku. This captivating and intuitive game offers a stimulating opportunity to test your strategic thinking and mental acuity while providing a serene experience for relaxation and mental rejuvenation.
Players strategically maneuver the blocks to align with the 9x9 board, aiming to complete lines and 3x3 squares to eliminate them. Maintaining a tidy board while striving for top scores is key. The game's fundamental mechanics are enhanced by a contemporary aesthetic featuring blue blocks and grids, departing from the traditional woody design.
- Impressive blend of block puzzle games & sudoku
- Dark mode/Light mode options
- Aim to clear lines & squares for points
- Compete to surpass your best score and challenge fellow players
- A simplistic yet stimulating experience that keeps you hooked
- Offers relaxation and brain training benefits
Embark on a rewarding journey with BLUE 81: SUDOKU BLOCK PUZZLE, available now at no cost.
Overview
Blue 81: Sudoku block puzzle is a Freeware software in the category Games & Entertainment developed by Athena Studio.
The latest version of Blue 81: Sudoku block puzzle is 1.0.1, released on 02/24/2024. It was initially added to our database on 02/24/2024.
Blue 81: Sudoku block puzzle runs on the following operating systems: iOS.
Users of Blue 81: Sudoku block puzzle gave it a rating of 5 out of 5 stars.
Pros
- Variety of challenging sudoku puzzles to solve
- Ability to track and improve your solving times
- Option to customize the game with different themes and designs
- Includes both classic sudoku and sudoku block puzzle modes for added variety
- Intuitive interface for easy gameplay
Cons
- May contain ads that can be distracting during gameplay
- Requires an internet connection to access some features
- Some users may find the difficulty level of puzzles to be too challenging
FAQ
What is Blue 81?
Blue 81 is a Sudoku block puzzle game developed by Athena Studio.
How do you play Blue 81?
In Blue 81, players need to fill the 9x9 grid with numbers from 1 to 9, making sure that each row, column, and 3x3 subgrid contains all the digits without repeating.
Is Blue 81 available on mobile devices?
Yes, Blue 81 is available for both Android and iOS devices.
Are there different difficulty levels in Blue 81?
Yes, Blue 81 offers multiple difficulty levels ranging from easy to expert for players of all skill levels.
Can I play Blue 81 offline?
Yes, Blue 81 can be played offline without an internet connection.
Does Blue 81 have any in-app purchases?
Blue 81 is free to play with optional in-app purchases for hints or additional features.
Is there a hint system in Blue 81?
Yes, Blue 81 provides a hint system to assist players when they get stuck on a puzzle.
Can I compete with friends in Blue 81?
Blue 81 has a leaderboard feature where you can compete with friends and other players for high scores.
Is there a timer in Blue 81?
Yes, Blue 81 includes a timer so players can track how long it takes them to solve each puzzle.
Are there regular updates and new puzzles in Blue 81?
Yes, Athena Studio regularly updates Blue 81 with new puzzles and features to keep players engaged.

Boris Weber
I am an editor at UpdateStar. I started as a support engineer, and am now specialized in writing about general software topics from a usability and performance angle among others. I telecommute from UpdateStar’s Berlin office, when I am not working remote as a digital nomad for UpdateStar. When I'm not analyzing the latest software updates, you can find me exploring new cities, immersing myself in local cultures, and discovering innovative tech trends across the globe.
Latest Reviews by Boris Weber
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