Cons1, Целостность данных

using System;
using System.Collections.Generic;

namespace CardGame
{
    enum Marks
    {
        Peaks,
        Worms,
        Crosses,
        Booby
    }

    enum Color
    {
        Red,
        Black
    }

    class Card
    {
        private int _score;
        private Marks _mark;
        private Color _color;

        public Card(int score, Marks mark, Color color)
        {
            if (score < 0 || score > 14)
                throw new ArgumentException();
            _score = score;
            _mark = mark;
            _color = color;
        }

        public int Score { get; }
        public Marks Mark { get; }
        public Color Color { get; }

    }

    static class GameRules
    {
        static private string rules = "";
        static public string Rules
        {
            get { return rules; }
        }
    }

    class Player
    {
        public Player(string name) { _name = name; }

        public string _name { get; private set; }
        public BoxOfCards CountCardsOnHand { get; set; }

        public Card Move(int numberOfCard)
        {
            return CountCardsOnHand.Cards[numberOfCard];
        }
    }

    class GameMatch
    {
        public GameMatch(Marks specialCardMark, params Player[] players)
        {
            SpecialCardMark = specialCardMark;
            foreach (var player in players)
                _players.Add(player);
        }

        public readonly Marks SpecialCardMark;
        static List<Player> _players { get; set; }
    }

    class Table
    {
        public Deck deck;

        public BoxOfCards move1;
        public BoxOfCards move2;

        public BoxOfCards beaten;

        public Deck Deck { get; }

        public BoxOfCards Move1 { get; set; }
        public BoxOfCards Move2 { get; set; }

        public BoxOfCards Beaten { get; }
    }

    class BoxOfCards
    {
        public List<Card> cards;
        public int countCards { get { return cards.Count; } }
        public List<Card> Cards { get; private set; }

        public void AddCards(params Card[] listOfCrds)
        {
            foreach (var i in listOfCrds)
                cards.Add(i);
        }
    }

    class Deck
    {
        public Stack<Card> cards;
        public int CountCards { get { return cards.Count; } }
        public Stack<Card> Cards { get; }
    }
}