This little C++ application can solve (3 x 3) sudoku's via backtracking.
- cd /build
- cmake .. (>= 3.10.2)
- make
- ./sudoku_solver
Open test_sudoku.txt and enter the custom sudoku as formatted in the file('X' represents unknown numbers).
For exchanging the sudoku file go to line 75 in /src/main.cpp and configure it there.