How a Grandmaster Sudoku Race Actually Works
Six players, one grid, no puzzle data sent over the network. Here's the trick.
Free to play
Free online games, built to be fun.
Juliet Games makes games you'll actually enjoy — solo or with friends and family. Play Daily Sudoku, Type Racer, Trivia, and Signal Words free in your browser, or check out Grandmaster Sudoku, coming soon to iOS and Android.
Why players get hooked
Six Grandmaster modes
Diagonal X, Time-Attack, Blindfold, Jigsaw, Killer, and Classic — each one changes the rules, not just the difficulty.
Race a friend live
Create a room, share a code, and solve the same grid head-to-head — no accounts, no waiting.
A new puzzle daily
The Puzzle of the Day resets every 24 hours — same grid for everyone, bragging rights included.
Our games
One out now, more in the works.
Puzzle
iOS
Android
Grandmaster Sudoku
Classic sudoku with six advanced variants, a daily puzzle, and live multiplayer races against friends.
From the blog
Under the hood
Strategy
Killer Cages, Explained: The Sudoku Variant That's Secretly Just Algebra
No starting numbers, just cage sums. Here's how to read one without wanting to throw your phone.
Behind the scenes
Designing a Sudoku a Grandmaster Wouldn't Be Bored By
Why one very hard grid wasn't the goal — six different ways to be hard was.
Think you're a grandmaster?
Six ways to play, a daily puzzle, and friends to beat. Find out.