public int[,] GenerateSudokuBoardWithDifficultySetting(int[,] board, DifficultySetting difficultySetting)
{
var updatedBoard = board;
//setup the board info
boardInfo = CommonMethods.GetSudokuBoardSize(board);
//setup each difficulty situation that is required
foreach (var difficultySituation in difficultySetting.DifficultySituations)
{
updatedBoard = AddDifficultySitiuationToBoard(updatedBoard, difficultySituation);
}
return(updatedBoard);
}
internal List <int[, ]> SolveSudokuBoard(int[,] startingBoard)
{
//setup the board size
boardInfo = CommonMethods.GetSudokuBoardSize(startingBoard);
//get all the unfilled locations
var unfilledLocations = GetUnfilledBoardLocations(startingBoard);
var solvedBoards = new List <int[, ]>();
//start populating the solution tree
AddLocationsSolutionsToList(unfilledLocations, startingBoard, solvedBoards, 0);
return(solvedBoards);
}
public static SudokuBoardInfo GetSudokuBoardSize(int[,] board)
{
var boardInfo = new SudokuBoardInfo();
//get the board size
boardInfo.BoardSize = board.GetLength(0);
//get the inner board size
var boardSizeSquerRoot = Math.Sqrt(board.GetLength(0));
boardInfo.InnerBoardSize = (int)boardSizeSquerRoot;
//check to see if the board is a proper sudoku board (row number == coloumn number)
if (board.GetLength(0) != board.GetLength(1) || ((int)(boardSizeSquerRoot * 10) != boardInfo.InnerBoardSize * 10))
{
throw new Exception("The board is not a proper sudoku board");
}
return(boardInfo);
}
