About Sudoku Ultimate+
Sudoku Ultimate+ is an independently developed browser game. It started from a simple idea: sudoku is usually played alone, but it's more fun when someone is racing you on the same board.
What you can do here
- Play classic sudoku in four difficulties. Every puzzle is generated fresh and checked to have exactly one solution.
- Solve the daily puzzle: one shared board for everyone, with a streak to protect.
- Race in Versus: 2–4 players solve the same puzzle at the same time. Players can stake points they earned in the game; the first correct finish wins the pot.
- Create your own puzzles from a book or your head, checked for a unique solution before you play.
- Collect cosmetics and achievements: fonts, board frames, victory effects and titles.
Free to play, fair to everyone
The whole game is free. Points are earned only by playing and can never be bought. Gems can be bought, but they only unlock cosmetics and single-player extras; they can't be used in Versus and never affect who wins. See Fair play and virtual currencies for the full rules.
How the game is funded
Optional gem purchases for cosmetics help cover hosting. We may add clearly labeled advertising in the future, away from the puzzle board. If we do, this page and our Privacy Policy will say so first.
Contact
Questions, bug reports, partnership or sponsorship enquiries: use Help & support at the bottom of the game, or email sudokuultimate007@gmail.com. Every message becomes a support ticket that we answer by email.