Short description of Sudoku Puzzle 2.00: SBY is a PC-based Sudoku program that far exceeds the functionality of the typical puzzle-solving program. It not only comes with hundreds of puzzles and an electronic work sheet for solving, but also (1) includes a database for adding new puzzles; (2) supports the printing of large solving grids with a built-in Options Grid; (3) introduces a revolutionary ?degree of difficulty? rating system; (4) supports the importing and exporting of puzzles;