You can check the source code at this link.
Nowadays in Indian software companies, there is a trend to make hiring through online skill tests. Such a website is techgig.com.
On Techgig, there was a skill test for front-end developers. In the said test, applicants are tasked to develop a sudoku game, which has the facility to “save game” and “get game” from the browser’s local storage. I am not a frontend developer and I don’t want to change my job, but this problem definition looked exciting and so I decided to give it try.
After completing the game, it was looking as below:
If you want to dig into code go to my GitHub project.