BlueSudoku
Puzzle In-app purchases Contains ads
Blue Sudoku: clean offline sudoku, 5 difficulty levels. No interruptions.
- Downloads
- 10+
- on Google Play
- Price
- Free
- In-app purchases
- Updated
- Aug 29
- 2026 Β· v1.3.20
Screenshots
About BlueSudoku
BlueSudoku (Blue Sudoku) β the Sudoku experience you've been looking for.
No pop-up ads. No forced video ads. No interruptions. Just a clean, elegant Sudoku puzzle with a single non-intrusive
banner at the bottom.
𧩠5 DIFFICULTY LEVELS
From Easy to Evil β difficulty is determined by the solving techniques required, not just the number of clues.
β’ Easy: Naked singles only
β’ Medium: Hidden singles
β’ Hard: Naked pairs, pointing pairs
β’ Expert: X-Wing, Swordfish
β’ Evil: Advanced chains and coloring techniques
βοΈ SMART FEATURES
β’ Pencil marks β toggle note mode to track candidate numbers
β’ Auto-clean notes β automatically removes candidates when you place a number
β’ Error highlighting β optional real-time mistake detection
β’ Undo β go back up to 50 moves
β’ Hints β daily free hints to help when you're stuck
β±οΈ TRACK YOUR PROGRESS
β’ Statistics per difficulty level
β’ Best time and average time
β’ Completion rate
β’ Current and longest winning streaks
π¨ 9 COLOR PALETTES
β’ Make it yours β from Midnight Amber to Sakura, Ocean, Lavender and more
β’ True-black AMOLED theme β battery-friendly on OLED screens
π DESIGNED FOR COMFORT
β’ Light and dark mode support
β’ Clean, minimal interface with soft colors
β’ Haptic feedback for a tactile experience
β’ Smooth animations throughout
π PRIVACY FIRST
β’ Completely offline β no account required
β’ All data stored locally on your device
β’ No personal data collected
Built with care by BlueLogic Software.
No pop-up ads. No forced video ads. No interruptions. Just a clean, elegant Sudoku puzzle with a single non-intrusive
banner at the bottom.
𧩠5 DIFFICULTY LEVELS
From Easy to Evil β difficulty is determined by the solving techniques required, not just the number of clues.
β’ Easy: Naked singles only
β’ Medium: Hidden singles
β’ Hard: Naked pairs, pointing pairs
β’ Expert: X-Wing, Swordfish
β’ Evil: Advanced chains and coloring techniques
βοΈ SMART FEATURES
β’ Pencil marks β toggle note mode to track candidate numbers
β’ Auto-clean notes β automatically removes candidates when you place a number
β’ Error highlighting β optional real-time mistake detection
β’ Undo β go back up to 50 moves
β’ Hints β daily free hints to help when you're stuck
β±οΈ TRACK YOUR PROGRESS
β’ Statistics per difficulty level
β’ Best time and average time
β’ Completion rate
β’ Current and longest winning streaks
π¨ 9 COLOR PALETTES
β’ Make it yours β from Midnight Amber to Sakura, Ocean, Lavender and more
β’ True-black AMOLED theme β battery-friendly on OLED screens
π DESIGNED FOR COMFORT
β’ Light and dark mode support
β’ Clean, minimal interface with soft colors
β’ Haptic feedback for a tactile experience
β’ Smooth animations throughout
π PRIVACY FIRST
β’ Completely offline β no account required
β’ All data stored locally on your device
β’ No personal data collected
Built with care by BlueLogic Software.
What’s new
Version 1.3.20 Β· Updated August 29, 2026
β’ Improved game screen layout β’ Layout fix for smaller screens β’ UI refinements
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