GitHub - davekolian/Sudoku-Solver: Java program that can solve Sudoku puzzles (of type 2x2, 2x3, 3x3 and 3x3 diagonal) with the help of the Backtracking algorithm and the Constraint Satisfaction Problem.
Wie man Sudoku Rätsel löst - Echte Tipps und Ratschläge (Teil 1)