Build a Sudoku checker that can automatically generate and solve any 9 x 9 Sudoku grid such as the one below:
Images courtesy of Wikipedia where you can find more information.
You can use any technology you like, and it is down to you whether you use a command-line interface or a web interface for the process of generating and solving the puzzle.
Don't forget - the aim of the challenge is to show-off your skills writing clean, test-driven, well designed object-oriented code, rather than just to prove you can solve the problem. This document explains more, please re-read it before starting the challenge.
To start the challenge, fork this repository. Once you have finished, make sure you have added Code Climate stats to your repository then submit a pull request. See if you can resolve as many style-guide violations picked up by Hound as possible and your Code Climate score is above 3 and then one of the coaches will review your code. Good luck!
If you have done your project in Node, please add a Travis config file which will allow us to automatically run your tests and see if they pass. You can read the documentation or this article for more help.