protected abstract List <SudokuSolution> Solve_BoxLineReduction(SudokuBoard a_board, bool a_all);
protected abstract List <SudokuSolution> Solve_NakedQuads(SudokuBoard a_board, bool a_all);
protected abstract List <SudokuSolution> Solve_PointingTriples(SudokuBoard a_board, bool a_all);
protected abstract List <SudokuSolution> Solve_SinglesInUnit(SudokuBoard a_board, bool a_all);
protected abstract List <SudokuSolution> Solve_HiddenTriples(SudokuBoard a_board, bool a_all);
protected abstract List <SudokuSolution> Solve_WXYZWing(SudokuBoard a_board, bool a_all);
public static SudokuSolution Rotate(this SudokuSolution a_sol, SudokuBoard a_board)
{
return(new SudokuSolution(a_sol.Type, Rotate(a_sol.Removed, a_board), Rotate(a_sol.Stayed, a_board),
Rotate(a_sol.Solved, a_board), from unit in a_sol.ColorUnits
select Rotate(unit, a_board)));
}
private static SudokuBoard LoadFromText(string a_str)
{
a_str = a_str.Replace(System.Environment.NewLine, System.Environment.NewLine.Substring(0, 1));
List <string> lines = a_str.Split(System.Environment.NewLine[0]).ToList();
for (int i = lines.Count - 1; i >= 0; i--)
{
lines[i] = lines[i].Replace(" ", "");
if (lines[i].IndexOfAny(new char[] { ']', '[', '-', '+', '*' }) != -1)
{
lines.RemoveAt(i);
}
else if (lines[i].Length == 0)
{
lines.RemoveAt(i);
}
}
if (lines.Count == 1)
{
string str = lines[0];
if (str.Length == 9 * 9)
{
lines.Clear();
for (int i = 0; i < 9; i++)
{
lines.Add(str.Substring(i * 9, 9));
}
}
}
for (int i = lines.Count - 1; i >= 0; i--)
{
lines[i] = lines[i].Replace(" |", "");
lines[i] = lines[i].Replace("|", "");
lines[i] = lines[i].Replace(" ", ".");
}
for (int i = lines.Count - 1; i >= 0; i--)
{
if (lines[i].Length != SIZE)
{
lines.RemoveAt(i);
}
}
if (lines.Count != SIZE)
{
return(null);
}
SudokuBoard board = new SudokuBoard();
(from cell in board.Cells()
where lines[cell.Row][cell.Col] != '.'
select cell).ForEach(cell =>
cell[Int32.Parse(new string(new char[] { lines[cell.Row][cell.Col] })) - 1].State =
SudokuNumberState.sudokucellstateManualEntered);
if (!board.Check())
{
return(null);
}
return(board);
}
public SudokuBoard(SudokuBoard a_board)
: this()
{
Cells().ForEach(cell => cell.CopyFrom(a_board[cell.Col, cell.Row]));
}
internal SudokuSolutionNode AddNode(SudokuBoard a_board, SudokuSolutionNodeState a_state, SudokuSolution a_solution)
{
return(AddNode(new SudokuSolutionNode(a_board, a_state, a_solution)));
}
public static SudokuSolutionNode CreateRoot(SudokuBoard a_board)
{
return(new SudokuSolutionNode(a_board, SudokuSolutionNodeState.State));
}
internal SudokuSolutionNode AddNode(SudokuBoard a_board, SudokuSolutionNodeState a_state)
{
return(AddNode(a_board, a_state, null));
}
private static IEnumerable <SudokuNumber> Rotate(IEnumerable <SudokuNumber> a_list, SudokuBoard a_board)
{
var list = from num in a_list
select Rotate(num, a_board);
return(from num in list
orderby num.Row, num.Col
select num);
}
private static IEnumerable <SudokuCell> Rotate(IEnumerable <SudokuCell> a_list, SudokuBoard a_board)
{
var list = from cell in a_list
select GetRotatedCell(a_board, cell);
return(from cell in list
orderby cell.Row, cell.Col
select cell);
}
protected abstract List <SudokuSolution> Solve_MultivalueXWing(SudokuBoard a_board, bool a_all);
protected abstract List <SudokuSolution> Solve_MarkImpossibles(SudokuBoard a_board, bool a_all);
protected abstract List <SudokuSolution> Solve_JellyFish(SudokuBoard a_board, bool a_all);
protected abstract List <SudokuSolution> Solve_MarkSolved(SudokuBoard a_board, bool a_all);
//Constructors
public Detection(SudokuBoard sudoku)
{
this.sudoku = sudoku;
}
public static SudokuIntermediateSolution Rotate(this SudokuIntermediateSolution a_inter_sol)
{
SudokuBoard before = Rotate(a_inter_sol.Before);
return(new SudokuIntermediateSolution(before, Rotate(a_inter_sol.After), Rotate(a_inter_sol.Solution, before)));
}