Sudoku is a classic logic-based puzzle game, which is a brain training game that helps to improve your cognitive abilities, such as attention, logic, memory, etc. It has been played for thousands of years, and is still considered to be one of the best brain training games.

Sudoku is a logic-based number puzzle game that is played by using a 9×9 grid of squares, in which you have to place the numbers from 1 to 9 in each of the squares. You can do this by using the ten numbers that you have at your side, and that will help you to place the numbers in the grid cell by cell.

In Sudoku, you have to place the numbers in the grid cell by cell, so that each number can only appear once in each row, each column, and each mini-grid.