It solves sudokus. What more could you want?
Clone the repo, run cargo build --release.
Input a sudoku in linear string format:
./target/release/sudoku-solver -p 008317000004205109000040070327160904901450000045700800030001060872604000416070080Output:
solution: 298317645764285139153946278327168954981453726645792813539821467872634591416579382