Research
- Creating Sudoku Puzzles - This looks most promising!
- Sudoku Puzzles Generating: from Easy to Evil
- How can I generate Sudoku Puzzles? - Create it outside the app, then obfuscate it
- 5 ways to create a Sudoku - Validate that puzzle is solvable each time you remove a digit
- A simple algorithm for generating Sudoku Puzzles - Does NOT remove cells
- Generates a valid Sudoku in 0.018 seconds - Does NOT remove cells
PCB
Other Resources
Great project. Just one questions: what is that IC on the top of the breadboard?