How to play this game?

SUDOKU CHALLENGES

Instructions

Movement can be controlled by the WASD keys or arrow keys. Click on the buttons in the bottom right corner of the screen to perform actions.

Description

Number-placing puzzles based on logic are known as Sudoku Challenges. In this problem, you have to fill a 9-by-9 grid with numbers such that each of the nine 3×3 sub-grids (also called “boxes” or “blocks”) contains the digits 1 to 9. In each puzzle, the grid will be partially completed, with only one solution.