This project was generated with Angular CLI version 8.3.0.
The 3 main files that contain the code are : app.component.ts app.component.html app.component.css app.component.spec.ts (contains some test cases)
The algorithm I used for generating sudoku board is backtracking. First of all, I start with the left-top corner cell. I generate a list of unordered numbers from 1 to 9. Then I pick up the 1st number and check if the rest board can get a valid result. If not, I will try the 2nd number from the unordered list.
Secondly, I dig holes from the solution board. Every time a hole is made, I checked if the board is still solvable. If no, then stop and fill the hole.
I used the console.log() to post the solution board. For your convenience, you can check your browser console for solution.
Beginning
Wrong Answer
Correct Answer
Run ng serve for a dev server. Navigate to http://localhost:4200/. The app will automatically reload if you change any of the source files.
Docker: https://hub.docker.com/r/qiqih/sudokuboard?ref=login
docker pull qiqih/sudokuboard:v3