* During the event
- Period: January 8, 2026 - February 7, 2026
- Enjoy unlimited ad-free fun: Remove all ads
- Daily hints: One hint is delivered daily by mail at 9:00 AM (UTC +9)
* Compete with the world in Sudoku, K-Ranking SUDOKU
- Global Sudoku Challenge!
- Prove your brain power by competing weekly with users from around the world.
* Game Features
- Classic 9x9 Sudoku
- Clean and intuitive interface for everyone
- 3 difficulty levels: Easy, Medium, and Hard
- Weekly ranking system: Rankings are based on your fastest clear times for all difficulties each week, adding to the fun of global competition!
* Recommended for:
- All brainy gamers who love Sudoku
- Those who want to compete fairly with users from around the world
- Those who want to improve their concentration by having a short game every day
* Try it now
- Global Sudoku rankings updated weekly!
- Represent your country and become number one.
- K-Ranking SUDOKU is where your brain power begins.
* Compete with the world in Sudoku — K-Ranking SUDOKU
- A global Sudoku challenge!
- Compete with players from around the world every week and prove how fast your brain can think.
* Game Features
- Classic 9x9 Sudoku
- Clean and intuitive interface anyone can enjoy
- Three difficulty levels: Easy / Normal / Hard
- Weekly Ranking System
Rankings are based on the fastest clear times across all difficulties each week.
Enjoy the thrill of global competition with your clear time displayed to players worldwide!
* Recommended For
- Sudoku lovers who enjoy brain-challenging puzzles
- Players who want fair, worldwide competition
- Anyone who wants to sharpen their focus with short daily play
* Challenge Yourself Now
- Global Sudoku rankings updated every week!
- Represent your country and aim for the top!
- The ultimate brain battle begins with K-Ranking SUDOKU.
Compete with users from all over the world in the Sudoku ranking competition right now at K-Ranking SUDOKU!