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SUDOKU WORLD
45+ Categories • Daily Challenges • Global Community • 48K Online Now
SUDOKU
WORLD
The world's most complete Sudoku platform. Classic, Killer, Thermo, Samurai, Emoji & 40+ more. Compete daily, solve endlessly, master every variant.
45+
Categories
2.4M
Puzzles Solved
180+
Countries
48K
Online Now
1.2M
Players
Classic 9×9
Killer Sudoku
X-Sudoku
Emoji Sudoku
Thermo Sudoku
Samurai Sudoku
Arrow Sudoku
Kropki Sudoku
Mini 4×4
Giant 16×16
Jigsaw Sudoku
Sandwich Sudoku
Hyper Sudoku
Knight Move
Sudoku Royale
Meme-Doku
Bubble Pop
Dancing Numbers
Space Sudoku
Animal Sudoku
Battle Sudoku
Fog of War
Classic 9×9
Killer Sudoku
X-Sudoku
Emoji Sudoku
Thermo Sudoku
Samurai Sudoku
Arrow Sudoku
Kropki Sudoku
Mini 4×4
Giant 16×16
Jigsaw Sudoku
Sandwich Sudoku
Hyper Sudoku
Knight Move
Sudoku Royale
Meme-Doku
Bubble Pop
Dancing Numbers
Space Sudoku
Animal Sudoku
Battle Sudoku
Fog of War
Classic 9×9
Killer Sudoku
X-Sudoku
Emoji Sudoku
Thermo Sudoku
Samurai Sudoku
Arrow Sudoku
Kropki Sudoku
Mini 4×4
Giant 16×16
Jigsaw Sudoku
Sandwich Sudoku
Hyper Sudoku
Knight Move
Sudoku Royale
Meme-Doku
Bubble Pop
Dancing Numbers
Space Sudoku
Animal Sudoku
Battle Sudoku
Fog of War
Game Modes
45+ CATEGORIES
From kids emoji puzzles to expert Samurai, Fog of War, Battle Sudoku and everything in between.
classic
☑
Classic 9×9
Pure deductive logic, no guessing
🔥 HOT3 difficulties
classic
⬡
Classic 6×6
Smaller grid for quick sessions
🔥 HOT3 difficulties
classic
◻
Mini 4×4
2-minute solve, perfect starter
3 difficulties
classic
⊞
Giant 16×16
256-cell mega grid challenge
3 difficulties
expert
⊟
Giant 25×25
Ultimate 625-cell masterpiece
💡 NEW3 difficulties
expert
⚔
Killer Sudoku
Sum cage constraints on regions
🔥 HOT3 difficulties
expert
✕
X-Sudoku
Both diagonals must be unique
3 difficulties
expert
🌡
Thermo Sudoku
Cells increase along thermometers
💡 NEW3 difficulties
expert
⛩
Samurai Sudoku
5 overlapping 9×9 grids
3 difficulties
expert
↗
Arrow Sudoku
Arrow paths sum to circle digit
3 difficulties
expert
⚫
Kropki Sudoku
Black & white dot ratio rules
3 difficulties
expert
🧩
Jigsaw Sudoku
Irregular polyomino regions
3 difficulties
expert
H
Hyper Sudoku
4 extra 3×3 interior boxes
3 difficulties
expert
🥪
Sandwich Sudoku
Sum of digits between 1 & 9
3 difficulties
expert
R
Renban Sudoku
Consecutive groups in any order
💡 NEW3 difficulties
expert
〜
German Whispers
Adjacent digits must differ by ≥5
💡 NEW3 difficulties
expert
🏙
Skyscraper
See N buildings from outside clue
3 difficulties
expert
🌀
Windoku
4 extra overlapping inner regions
3 difficulties
expert
↔
Palindrome
Marked lines read same both ways
3 difficulties
expert
🌫
Fog of War
Hidden cells revealed as you solve
🔥 HOT3 difficulties
expert
♞
Anti-Knight
No same digit a chess knight away
3 difficulties
expert
♔
Anti-King
No same digit a king move away
3 difficulties
expert
±
Even/Odd Sudoku
Grey cells must hold even or odd
3 difficulties
expert
⬡
Consecutive Pairs
White dots mark adjacent consecutive
3 difficulties
expert
∞
Toroidal Sudoku
Rows & columns wrap around edges
💡 NEW3 difficulties
expert
>
Greater Than
Inequality arrows between cells
3 difficulties
expert
👑
Sudoku Royale
8 players compete on one live grid
🔥 HOT💡 NEW3 difficulties
expert
😂
Meme-Doku
Solve with 9 iconic meme faces
🔥 HOT3 difficulties
expert
⛓
Chain Sudoku
Numbers link in connected chains
💡 NEW3 difficulties
expert
⚡
Battle Sudoku
2-player head-to-head speed race
🔥 HOT💡 NEW3 difficulties
expert
◉
Outside Sudoku
Clues appear outside the main grid
3 difficulties
kids
😊
Emoji Sudoku
Place 9 expressive emoji symbols
🔥 HOT3 difficulties
kids
🐯
Animal Sudoku
9 cute jungle animal characters
🔥 HOT3 difficulties
kids
🍕
Food Sudoku
9 delicious food symbols to place
💡 NEW3 difficulties
kids
🌈
Color Sudoku
Fill the grid with rainbow colors
3 difficulties
kids
🚀
Space Sudoku
Rockets, stars & alien symbols
3 difficulties
kids
🫧
Bubble Pop
Pop all bubbles in the right order
💡 NEW3 difficulties
kids
🕺
Dancing Numbers
Animated numbers that wiggle!
💡 NEW3 difficulties
kids
🍭
Candy Sudoku
9 sweet candy & treat symbols
💡 NEW3 difficulties
kids
🦕
Dino Sudoku
9 awesome dinosaur characters
💡 NEW3 difficulties
kids
⚽
Sports Sudoku
Football, basketball & 7 more sports
3 difficulties
kids
⛅
Weather Sudoku
Sun, rain, cloud & lightning symbols
3 difficulties
kids
🎵
Music Sudoku
Musical notes & instrument symbols
3 difficulties
kids
🏁
Flag Sudoku
Place 9 world country flags
💡 NEW3 difficulties
kids
🚗
Vehicle Sudoku
Cars, trains, planes & more
3 difficulties
Today's Challenges
DAILY CHALLENGE HUB
New high-stakes puzzles every 24 hours. Earn up to 5,000 points. First 100 solvers get Pioneer ribbon.
LIVE
🏆 Gold Daily
Monday Madness
Today's highest-stakes Classic 9×9. Diabolical difficulty — only the best will crack this one. First 100 solvers earn the Pioneer ribbon.
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🏆 2,500 pts
👤 14,820 attempts
✓ 3,241 solved
⏱ Best: 4:12
LIVE
⚡ Speed Blitz
60-Sec Sprint
Mini 6×6 • Hard
🏆 1,500 pts👤 8,920✓ 2,105⏱ 0:38
LIVE
🔥 Weekly Ultra
Champion Grid
Killer Sudoku • Expert
🏆 5,000 pts👤 4,200✓ 892⏱ 18:44
LIVE
🎉 Newcomer
Fresh Start
Mini 4×4 • Easy
🏆 500 pts👤 32,100✓ 28,900⏱ 0:22
Your Progress
ACHIEVEMENTS & REWARDS
Unlock badges by solving challenges, maintaining streaks, and mastering every category. Each badge earns XP toward your tier.
⚡
SPEED DEMON
Solve Classic 9×9 in under 3 minutes. Mastery of scanning and elimination.
fastest: 4:1272%
🔥
STREAK MASTER
Maintain a 30-day daily solve streak. Play every day, keep the chain alive.
14 / 30 days47%
✨
PERFECT SOLVER
Complete 10 puzzles with zero mistakes. Logic only — no trial and error.
7 / 10 perfect70%
🗺
CATEGORY EXPLORER
Play all 45 categories at least once. Experience every puzzle type.
12 / 45 tried27%
⚔
KILLER INSTINCT
Solve 25 Killer Sudoku puzzles. Master the art of cage sum deduction.
✓ UNLOCKED
🦉
NIGHT OWL
Solve 20 puzzles between midnight and 4 AM. The grid never sleeps.
8 / 20 nights40%
DAILY STREAK REWARDS
🔥
14
Current Streak
🏆
28
Best Streak
✅
142
Total Solved
⭐
4,820
Total XP
🎯
89
Accuracy %
⚡
312
Best Time (sec)
Learn & Improve
GAME ACADEMY
Strategy guides written by top-ranked players. From naked singles to X-wings — master every technique.
🔍
Beginner Guide
Naked Singles & Hidden Singles
The two most fundamental techniques. Master these and you can crack 90% of Easy and Medium puzzles.
Beginner
📚 5 lessons•🕑 4 min
→🧮
Intermediate
Pointing Pairs & Box/Line Reduction
When candidates in a box align with a row or column, eliminate them from the rest. Game-changing for Hard.
Intermediate
📚 7 lessons•🕑 6 min
→⛓
Advanced
X-Wings, Swordfish & Jellyfish
Powerful multi-row/column elimination. Unlock Expert and Diabolical difficulty with these patterns.
Advanced
📚 9 lessons•🕑 10 min
→⚔
Killer Sudoku
Cage Strategies & 45-Rule
Killer-specific techniques: cage splits, innies and outies. Turn any cage puzzle from impossible to solvable.
Intermediate
📚 6 lessons•🕑 8 min
→⚡
Speed Solving
Pattern Recognition for Speed
Train your eyes to spot patterns instantly. Reduce solve time by 40% with visual scanning techniques.
Advanced
📚 8 lessons•🕑 7 min
→🌡
Variants Guide
Thermo, Arrow & Whispers Decoded
Step-by-step breakdown of constraint-based variants. Understand each rule and how to exploit it.
Intermediate
📚 10 lessons•🕑 9 min
→Community
PLAYER PUZZLES
Solve, rate and share puzzles created by the community. Challenge friends with your own creations.
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X-Sudoku
The Mind Bender
❤ 842👤 1,204✓ 41% solved
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ArjunShard
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Classic 9×9
Sunday Solver
❤ 623👤 2,891✓ 94% solved
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YukiTeasy
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X-Sudoku
Diagonal Chaos
❤ 511👤 988✓ 28% solved
C
ChenWhard
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Emoji Sudoku
Kids Fun Day
❤ 1240👤 5,410✓ 89% solved
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RajPeasy
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Killer Sudoku
The Eliminator
❤ 392👤 1,841✓ 19% solved
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Hyper Sudoku
Perfect Medium
❤ 718👤 3,201✓ 62% solved
S
SophLmedium
In Development
BIG FEATURES COMING SOON
Two massive competitive features are under active development — here's what's coming and why they'll transform Sudoku World.
COMING SOON
🏆
GLOBAL LEADERBOARD
A real-time ranking of the top 1,000 Sudoku players worldwide, updated every 30 seconds across Daily, Weekly and All-Time scoreboards.
Daily, Weekly and All-Time tabs — compare performance over any timeframe
Live rank changes — watch yourself climb in real time after every solve
Streaks, best times, accuracy and XP all feed into your global rank
Player profiles with full solve history, badges and earned titles
Top 10 each week earn exclusive Gold, Silver, Bronze certificates
🕑 Estimated: Q3 2025
COMING SOON
🌍
COUNTRY CHALLENGE
180 countries competing head-to-head every week. Every puzzle you solve contributes to your country's score. One champion nation wins.
Weekly resets every Monday — the battle begins fresh across all 180 countries
National leaderboard — see where your country stands against the world
Top 3 countries win Gold, Silver and Bronze trophies shown on all member profiles
Top 10 countries receive official digital certificates downloadable as PDF
Top individual scorer in each country earns a Personal Champion certificate
🕑 Estimated: Q3 2025