private void RemoveTrialSquarePossibleValue(PuzzleSquare source, Int32 value)
{
source.TrialPossibleValues.Remove(value);
if (source.TrialPossibleValues.Count.Equals(1))
{
source.TrialKnownValue = source.TrialPossibleValues.FirstOrDefault();
RemoveTrialSquareConflictPossibleValues(source);
}
}
private bool GetTrialSquarePossibleValues(PuzzleSquare source)
{
List<Int32> conflictValues = (from square in trialKnownSquares where !square.CellIndex.Equals(source.CellIndex) && (square.RowIndex.Equals(source.RowIndex) || square.ColumnIndex.Equals(source.ColumnIndex) || square.GroupIndex.Equals(source.GroupIndex)) select square.TrialKnownValue).ToList();
conflictValues.ForEach(value => source.TrialPossibleValues.Remove(value));
if (source.TrialPossibleValues.Count.Equals(1))
{
source.TrialKnownValue = source.TrialPossibleValues.First();
RemoveTrialSquareConflictPossibleValues(source);
return true;
}
else
{
return false;
}
}
private void RemoveTrialSquareConflictPossibleValues(PuzzleSquare source)
{
if (source.TrialKnownValue.Equals(0)) { return; }
List<PuzzleSquare> conflicts = (from square in trialUnknownSquares where !square.CellIndex.Equals(source.CellIndex) && (square.RowIndex.Equals(source.RowIndex) || square.ColumnIndex.Equals(source.ColumnIndex) || square.GroupIndex.Equals(source.GroupIndex)) select square).Distinct().ToList();
conflicts.ForEach(square => RemoveTrialSquarePossibleValue(square, source.TrialKnownValue));
}
private bool GetSquarePossibleValues(PuzzleSquare source)
{
//source.PossibleValues = new List<Int32> { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
List<Int32> conflictValues = (from square in knownSquares where !square.CellIndex.Equals(source.CellIndex) && (square.RowIndex.Equals(source.RowIndex) || square.ColumnIndex.Equals(source.ColumnIndex) || square.GroupIndex.Equals(source.GroupIndex)) select square.KnownValue).ToList();
conflictValues.ForEach(value => source.PossibleValues.Remove(value));
if (source.PossibleValues.Count.Equals(1))
{
source.KnownValue = source.PossibleValues.FirstOrDefault();
RemoveSquareConflictPossibleValues(source);
return true;
}
else
{
return false;
}
}