Question 1

About game

Accepted Answer

A puzzle game from Japan that has conquered the whole world.

Fill in the empty cells with numbers from 1 to 9.

In each row, column, or 3x3 block, each number can occur only once.

3 different game modes:

- Cell first: First click on the cell you want to...

Question 2

How to play

Accepted Answer

Fill in the blanks with numbers from 1 to 9.

Each row, column or 3x3 block, must contain the number 1 through 9 exactly once.

Ultimate Sudoku