private void CreateSeedFile()
{
//Creates 4 seeds of each difficulty
//Should only be used to create the base data, and not to add new seeds
List <Sudoku> seeds_ = new List <Sudoku>();
foreach (Sudoku sudoku in sudokus_)
{
seeds_.Add(SudokuGenerator.GenerateSeed(sudoku));
}
SaveLoad.SaveSeeds(seeds_);
}