internal int[,] RemoveLocationsWithPossibleValueCount(int[,] board, Location location, int possibleValuCount)
{
//random generator
var randomizer = new Random();
//create a copy of the board
var updatedBoard = CommonMethods.CopyBoard(board, boardInfo.BoardSize);
//get the locations that are connected to the random location
var connectedLocations = GetConnectedLocations(location);
updatedBoard[location.Coloumn, location.Row] = 0;
//get the possible values
var locationPossibleValue = SudokuBoardSolver.GetPosiiblePlaceValues(location, updatedBoard,
boardInfo.BoardSize, boardInfo.InnerBoardSize);
while (locationPossibleValue.Count() < possibleValuCount)
{
//get the value to be removed
var valueToBeRemoved = (int)(randomizer.NextDouble() * (boardInfo.BoardSize - 1)) + 1;
//remove the value from the board
RemoveValueFromBoardAtLocations(updatedBoard, connectedLocations.ColoumnConnections, valueToBeRemoved);
RemoveValueFromBoardAtLocations(updatedBoard, connectedLocations.RowConnections, valueToBeRemoved);
RemoveValueFromBoardAtLocations(updatedBoard, connectedLocations.InnerBlockConnections, valueToBeRemoved);
//get the possible values
locationPossibleValue = SudokuBoardSolver.GetPosiiblePlaceValues(location, updatedBoard,
boardInfo.BoardSize, boardInfo.InnerBoardSize);
}
//add the connected locations to the used connected locations list
usedConnectedLocations.AddRange(connectedLocations.ColoumnConnections);
usedConnectedLocations.AddRange(connectedLocations.RowConnections);
usedConnectedLocations.AddRange(connectedLocations.InnerBlockConnections);
return(updatedBoard);
}
static void Main(string[] args)
{
//sudoku solver testing
var sudokuSolver = new SudokuBoardSolver(100);
//setup the board
int[,] board = new int[9, 9];
board[3, 0] = 1;
board[4, 0] = 8;
board[8, 0] = 9;
board[6, 1] = 4;
board[8, 1] = 7;
board[2, 2] = 7;
board[7, 2] = 2;
board[8, 2] = 8;
board[5, 3] = 6;
board[8, 3] = 5;
board[0, 4] = 8;
board[1, 4] = 3;
board[3, 4] = 9;
board[4, 4] = 1;
board[5, 4] = 4;
board[7, 4] = 7;
board[8, 4] = 2;
board[0, 5] = 4;
board[3, 5] = 5;
board[0, 6] = 7;
board[1, 6] = 5;
board[6, 6] = 2;
board[0, 7] = 2;
board[2, 7] = 4;
board[0, 8] = 3;
board[4, 8] = 5;
board[5, 8] = 9;
var solutionBoards = sudokuSolver.Solve(new SudokuProblemDTO {
SudokuBoard = board
});
//Console.WriteLine("Intial Board");
//Console.WriteLine();
//PrintBoard(board);
//Console.WriteLine();
//Console.WriteLine();
//Console.WriteLine("Solved Board");
//Console.WriteLine();
//PrintBoard(solutionBoards.SolvedBoards.First());
//Console.WriteLine();
//Console.WriteLine();
//Console.WriteLine();
//sudoku generator testing
var solvedBoard = solutionBoards.SolvedBoards.First();
var sudokuGenerator = new SudokuBoardGenerator();
var unsolvedBoard = sudokuGenerator.GenerateSudokuBoardWithDifficultySetting(solvedBoard,
BoardPresetDifficulty_9X9.DifficultySetting);
Console.WriteLine("Solved Board");
Console.WriteLine();
PrintBoard(solvedBoard);
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("Unsolved Board");
Console.WriteLine();
PrintBoard(unsolvedBoard);
Console.WriteLine();
Console.WriteLine();
Console.WriteLine();
Console.ReadLine();
}
