Mini Sudoku Challenge
Fast 6x6 logic puzzles you can finish in minutes
Build a daily Sudoku habit with mobile-optimized controls, real-time hints, and expanding difficulty when you're ready.
Mini Sudoku - Free 6x6 Sudoku Puzzles Online
Daily Mini Sudoku
Solve today's Mini Sudoku
Enjoy a clean 6×6 grid with bold borders, touch-friendly controls, and conflict detection built for speed. Switch between pencil marks and final answers without losing momentum.
- Touch-friendly number pad
- Smart pencil marks
- Hints and error checking
Keep your streak alive
Beat your best time, save progress, and come back tomorrow for a fresh grid to keep the momentum going.
Brain boost in minutes
Mini Sudoku condenses classic logic into a five-minute challenge—perfect for coffee breaks, class warm-ups, or analytic cooldowns before bigger puzzles.
How to Play Mini Sudoku
Learn the essentials of 6×6 Sudoku and start solving confidently—perfect for new players and a speedy warm-up for experts.
Game Rules
Fill the 6x6 grid so each row contains digits 1-6 without repeats
Each column must also include the numbers 1-6 exactly once
Every 3x2 region (outlined box) must contain all digits 1-6
Tap a cell then choose a number from the number pad
Use pencil marks to note possible values before committing
Activate smart hints to reveal a valid move when stuck
Track your time and aim to beat your personal best
Pro Tips
Scan for “singles” first—cells or regions where only one number is missing.
Use pencil marks to track possible digits, then eliminate them as conflicts appear.
Compare pairs of rows or columns to spot duplicates and hidden candidates.
When stuck, switch focus to a different region or take a hint to stay in flow.
Practice daily to master advanced moves like pointing pairs and X-Wing.
Mini Sudoku Checklist
Tap a cell, choose a number, and toggle notes when you want to pencil in candidates before committing.
Beginner
4×4 Grids
Foundational logic with tiny regions and fast wins.
Intermediate
6×6 Grid
Balanced challenge with classic 3×2 regions.
Expert
9×9 Grid
Full-size boards with advanced solving techniques.
Mini Sudoku for Daily Brain Training
Mini Sudoku condenses the logic of classic 9x9 Sudoku into quick, satisfying 6x6 grids. Each puzzle uses digits 1-6, making it perfect for focused brain breaks, tablet play, or on-the-go mobile sessions.
Our responsive web app prioritizes clarity and speed: bold contrast grids, tap-friendly number pads, and optional pencil marks help you solve faster without sacrificing challenge. Timed runs, streak tracking, and error prevention support steady improvement whether you're a beginner or returning Sudoku fan.
Ready for more? Unlock larger board sizes and expert strategies as we expand the library. Save progress, compare completion times, and master advanced techniques like X-Wing, hidden singles, and more.
Key Features
Perfect For:
Designed for Mini Grids
Clear borders and high-contrast styling make each 3×2 region easy to read at a glance.
Helpful Assistance
Adaptive hinting drops the right number into place without solving the whole board for you.
More Puzzles Soon
Unlock larger boards, new difficulty tiers, and daily streak bonuses as the library grows.
Optimized for touch
Large tap targets, note mode, and conflict highlighting make solving effortless on phones.
Bigger boards coming
Tackle 6×6 puzzles now and get ready for 8×8 and classic 9×9 challenges soon.
Track your progress
Log completion times, limit mistakes, and build streaks to keep motivation high.
Mini Sudoku FAQ
What makes Mini Sudoku different from classic Sudoku?
Mini Sudoku uses a 6x6 grid with digits 1-6, making puzzles faster to solve while keeping the logical rules you love. It's ideal for quick sessions and mobile play.
Is Mini Sudoku good for beginners?
Yes. The smaller grid is less intimidating than 9x9 boards, helping new players learn scanning techniques, pencil marks, and logic without information overload.
Can I play on my phone or tablet?
Absolutely. Mini Sudoku is designed mobile-first with large tap targets, haptic-friendly interactions, and offline-ready performance optimizations.
Do you offer hints or error checking?
You can toggle smart hints, conflict highlighting, and pencil mark helpers to match your preferred difficulty and learning style.
Will you add larger Sudoku boards?
Yes. We're building 8x8 and classic 9x9 variations with additional solving techniques and daily challenge leaderboards.
Is Mini Sudoku free to play?
Yes, Mini Sudoku is completely free with no downloads required. Play instantly in your browser and expect regular puzzle updates.
Why Choose Mini Sudoku?
Logic First
Strengthen deduction skills with puzzles short enough for a coffee break.
Beginner Friendly
Learn the fundamentals without being overwhelmed by massive 9×9 grids.
Accessible UI
Bold borders, high contrast numbers, and large tap targets keep play frustration-free.
Daily Motivation
Track streaks, beat personal times, and unlock more board sizes as you grow.
More Logic Puzzles
Expand your skills with additional number and logic puzzles crafted to keep your solving streak alive.
Classic 9x9 Sudoku
Tackle full-size Sudoku grids with multiple difficulty levels
Killer Sudoku
Blend arithmetic and logic with cage-based Sudoku challenges
KenKen Mini
Explore math-based logic puzzles with operations and cages
Explore Logic Challenges
Mini Sudoku
4×4 to 6×6 grids with fast gameplay
Classic Sudoku
9×9 grids with graded difficulty sets
KenKen
Arithmetic-based logic cages with operations
Killer Sudoku
Sum-based regions for advanced solvers
Why Rotate Between Logic Puzzles?
Deeper Mastery
Applying techniques across puzzle types cements long-term learning.
Balanced Challenge
Switching formats prevents plateauing and keeps cognitive workouts fresh.
Mobile-Friendly
Every puzzle is tuned for thumb reach, dark rooms, and offline play.
Always Free
No paywalls or logins—just open your browser and solve.