Free
Rating summary
About
Rokku is a minimalist 6x6 Sudoku for quick, satisfying puzzle sessions.
EASY TO PICK UP
A compact 6x6 grid with 2x3 blocks instead of the classic 9x9. Perfect for a coffee break, your commute or a few minutes before bed. Every puzzle has exactly one solution.
A NEW PUZZLE EVERY DAY
The Daily Puzzle is Hard on weekdays and Expert on weekends. Build your streak, see your solved days in the calendar and get an optional daily reminder.
UNLIMITED PUZZLES, FOUR LEVELS
Every puzzle is generated on the fly, so you never run out. Swipe left for a fresh puzzle, swipe right to go back, and switch between Easy, Medium, Hard and Expert with a satisfying 3D cube turn.
HINTS THAT TEACH
Stuck? A hint shows the next logical step and explains exactly why the number fits. Eleven short lessons take you from the basic rule to advanced techniques like Pointing Pairs and X-Wing.
PROGRESS YOU CAN SEE
Unlock 10 achievements and chase your best times and clean solves without hints or mistakes.
BEAUTIFULLY DESIGNED
A glass-inspired interface in Light and Dark Mode, with support for Reduce Motion.
No ads. No subscriptions. No account. No tracking.
Rokku: the Sudoku that fits in your pocket and respects your time.
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What's New in Rokku Mini Sudoku 6x6
1.20
October 22, 2026
New: Rokku on iPhone Duo and in landscape. The board adapts to the screen size, also when you fold or unfold. New: Daily review in the calendar with a Done button. Fixed: Two wrong digits can now be swapped directly. Fixed: The hint banner no longer touches the number pad.
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