Model for Tic-Tac-Toe

TicTacToe.cs

using System.Collections.Generic;

namespace TicTacToe
{
    public enum Player
    {
        PlayerX,
        PlayerO
    }

    public enum GameResult
    {
        PlayerXWon,
        PlayerOWon,
        Draw,
        OnGoing
    }

    public enum HorizPos { Left, Center, Right }

    public enum VertPos { Top, Center, Bottom }

    public class Move
    {
        public Move(VertPos vertPos, HorizPos horizPos, Player player)
        {
            Player = player;
            VertPos = vertPos;
            HorizPos = horizPos;
        }

        public Player Player { get; private set; }
        public HorizPos HorizPos { get; private set; }
        public VertPos VertPos { get; private set; }
    }

    public class GameState
    {
        public GameResult GameResult { get; private set; }
        public IEnumerable<Move> Moves { get; private set; }

        private GameState() { }

        public static GameState Initial()
        {
            return new GameState { GameResult = GameResult.OnGoing, Moves = new List<Move>() };
        }

        public GameState MakeMove(Move move)
        {
            // implement logic
            return new GameState();
        }
    }
    public static class Usage
    {
        public static void Run()
        {
            var game = GameState.Initial();
            // start game loop
            var move = new Move(VertPos.Top, HorizPos.Left, Player.PlayerX);
            var moveResult = game.MakeMove(move);

            switch (moveResult.GameResult)
            {
                case GameResult.OnGoing: // todo
                case GameResult.Draw: // todo
                case GameResult.PlayerXWon: // todo
                case GameResult.PlayerOWon: // todo
                default: // todo
            }
            // ...
        }
    }
}