Sudoku maker
Pick a size and a difficulty and a solvable board is generated for you — nothing to type.
Sudoku maker
A sudoku generated in seconds, at the difficulty you choose.
What this maker can do
Choose your grid size
From a 2×2 for beginners to a 4×4 of 16-value blocks — five sizes, the classic 3×3 in the middle.
Pictures instead of numbers
PremiumGive every value an image and the board becomes a picture sudoku — animals, shapes, vocabulary.
Adjust the difficulty
PremiumEasy, normal or hard decides how much of the board is given away at the start.
Players can take notes
Pencil marks in a cell for the values still possible, the way a paper sudoku is solved.
Feedback per cell
PremiumTell players straight away whether a value is right, instead of only when the board is full.
Sudoku battle
PremiumTwo players, the same board, a race to fill it — and a comparison at the end.
Build the board yourself
Fill in the givens by hand instead of generating them — for a puzzle from a book, or one with a hidden pattern.
A custom sudoku, your size and your symbols
Upload your own images to use instead of the digits: the class pets, your team's faces, your products, nine favorite snacks. Choose a grid from 4×4 up to 16×16 or place the givens yourself, then print the sudoku or share it with a link.
Print the sudoku as a worksheet
Print the blank sudoku for the class and the solved one for yourself, straight from the preview. A picture sudoku prints with its pictures in the cells.
See one first
Play a finished sudoku to see what your players get.