/// <summary>
/// A deep copy constructor for an existing puzzle.
/// </summary>
public PuzzleWithPossibleValues(PuzzleWithPossibleValues existing)
{
_puzzle = existing._puzzle.DeepCopy();
_possibleValues = new PossibleValues(existing._possibleValues);
}
/// <summary>
/// Copy-constructor to provide a deep copy.
/// </summary>
/// <param name="existing">
/// The existing <c>PossibleValues</c> object that you want to copy.
/// </param>
public PossibleValues(PossibleValues existing)
{
_possibleValues = (BitVector[, ])existing._possibleValues.Clone();
AllPossible = existing.AllPossible;
}
