public static void TestFenGeneration()
        {
            ThreeCheckChessGame game = new ThreeCheckChessGame("rnb1kb1Q/pppp1p1p/5np1/8/8/8/PPPPKPPP/RNB3NR w q - 1 7 +1+2");

            game.ApplyMove(new Move("H8", "F8", Player.White), true);
            Assert.AreEqual("rnb1kQ2/pppp1p1p/5np1/8/8/8/PPPPKPPP/RNB3NR b q - 0 7 +2+2", game.GetFen());
        }
        public static void TestRecordedChecks()
        {
            ThreeCheckChessGame game = new ThreeCheckChessGame();

            game.ApplyMove(new Move("E2", "E4", Player.White), true);
            game.ApplyMove(new Move("E7", "E5", Player.Black), true);
            game.ApplyMove(new Move("D1", "H5", Player.White), true);
            game.ApplyMove(new Move("G7", "G6", Player.Black), true);
            game.ApplyMove(new Move("H5", "E5", Player.White), true);
            Assert.AreEqual(1, game.ChecksByWhite);
            Assert.AreEqual(0, game.ChecksByBlack);
            game.ApplyMove(new Move("D8", "E7", Player.Black), true);
            game.ApplyMove(new Move("E5", "H8", Player.White), true);
            game.ApplyMove(new Move("E7", "E4", Player.Black), true);
            Assert.AreEqual(1, game.ChecksByWhite);
            Assert.AreEqual(1, game.ChecksByBlack);
            game.ApplyMove(new Move("F1", "E2", Player.White), true);
            game.ApplyMove(new Move("F8", "G7", Player.Black), true);
            game.ApplyMove(new Move("H8", "G8", Player.White), true);
            Assert.AreEqual(2, game.ChecksByWhite);
            game.ApplyMove(new Move("E8", "E7", Player.Black), true);
            game.ApplyMove(new Move("G8", "E8", Player.White), true);
            Assert.AreEqual(3, game.ChecksByWhite);
            Assert.True(game.IsWinner(Player.White));
        }
        public static void TestFenCheckCounter()
        {
            ThreeCheckChessGame game = new ThreeCheckChessGame("rnb1kbnQ/pppp1p1p/6p1/8/8/8/PPPPqPPP/RNB1K1NR w KQq - 0 6 +1+2");

            Assert.AreEqual(1, game.ChecksByWhite);
            Assert.AreEqual(2, game.ChecksByBlack);
        }
Example #4
0
        public IActionResult SetupTraining(string id, string trainingSessionId = null)
        {
            int puzzleId;

            if (!int.TryParse(id, out puzzleId))
            {
                return(Json(new { success = false, error = "Invalid puzzle ID." }));
            }
            Puzzle puzzle = puzzleRepository.Get(puzzleId);

            if (puzzle == null)
            {
                return(Json(new { success = false, error = "Puzzle not found." }));
            }
            puzzle.Game = gameConstructor.Construct(puzzle.Variant, puzzle.InitialFen);
            PuzzleTrainingSession session;

            if (trainingSessionId == null)
            {
                string g;
                do
                {
                    g = Guid.NewGuid().ToString();
                } while (puzzleTrainingSessionRepository.ContainsTrainingSessionId(g));
                session = new PuzzleTrainingSession(g, gameConstructor);
                puzzleTrainingSessionRepository.Add(session);
            }
            else
            {
                session = puzzleTrainingSessionRepository.Get(trainingSessionId);
                if (session == null)
                {
                    return(Json(new { success = false, error = "Puzzle training session ID not found." }));
                }
            }
            session.Setup(puzzle);
            string additionalInfo = null;

            if (puzzle.Variant == "ThreeCheck")
            {
                ThreeCheckChessGame tccg = puzzle.Game as ThreeCheckChessGame;
                additionalInfo = string.Format("At the puzzle's initial position, white delivered {0} checks and black delivered {1} checks.", tccg.ChecksByWhite, tccg.ChecksByBlack);
            }
            return(Json(new
            {
                success = true,
                trainingSessionId = session.SessionID,
                author = userRepository.FindById(session.Current.Author).Username,
                fen = session.Current.InitialFen,
                dests = moveCollectionTransformer.GetChessgroundDestsForMoveCollection(session.Current.Game.GetValidMoves(session.Current.Game.WhoseTurn)),
                whoseTurn = session.Current.Game.WhoseTurn.ToString().ToLowerInvariant(),
                variant = puzzle.Variant,
                additionalInfo = additionalInfo,
                authorUrl = Url.Action("Profile", "User", new { id = session.Current.Author }),
                pocket = session.Current.Game.GenerateJsonPocket(),
                check = session.Current.Game.IsInCheck(Player.White) ? "white" : (session.Current.Game.IsInCheck(Player.Black) ? "black" : null)
            }));
        }
Example #5
0
        void GenerateMateInOnePositions <TGame>(string pgn, Func <string, TGame> createFromFen, string variant, string initialFen) where TGame : ChessGame, new()
        {
            if (variant == "Horde" && initialFen.StartsWith("pppppppp"))
            {
                return;
                // Once upon a time on lichess, the Black player had the Pawns and the White player the Pieces. That has been changed now, resulting in several invalid PGNs.
            }
            PgnReader <TGame> pgnReader = new PgnReader <TGame>();
            TGame             copy      = new TGame();

            try
            {
                pgnReader.ReadPgnFromString(pgn);
            }
            catch (PgnException)
            {
                Console.WriteLine("[Warning] PGN exception for variant {0}; {1}", variant, pgn);
                return;
                // I once got a PGN with an atomic game where self-checks were allowed. So to handle this case and similar rule changes like this, I have to catch the PgnException.
            }
            string fen;
            ReadOnlyCollection <DetailedMove> moves = pgnReader.Game.Moves;

            if (moves.Count >= 3) // there will never be a mate-in-one position if white hasn't done two moves
            {
                for (int i = 0; i < moves.Count; i++)
                {
                    copy.ApplyMove(moves[i], true);
                    if (i < 2)
                    {
                        continue;        // there will never be a mate-in-one position if white hasn't done two moves
                    }
                    if (copy is ThreeCheckChessGame)
                    {
                        ThreeCheckChessGame g = copy as ThreeCheckChessGame;
                        if ((g.WhoseTurn == Player.White ? g.ChecksByWhite : g.ChecksByBlack) != 2)
                        {
                            continue;
                        }
                    }
                    fen = copy.GetFen();
                    ReadOnlyCollection <Move> validMoves = copy.GetValidMoves(copy.WhoseTurn);
                    DetailedMove lastMove = moves[i];
                    for (int j = 0; j < validMoves.Count; j++)
                    {
                        TGame copy2 = createFromFen(fen);
                        copy2.ApplyMove(validMoves[j], true);
                        if (copy2.IsWinner(ChessUtilities.GetOpponentOf(copy2.WhoseTurn)))
                        {
                            fenQueue.Add(new Tuple <string, string[], string, string>(fen,
                                                                                      new string[] { lastMove.OriginalPosition.ToString().ToLowerInvariant(), lastMove.NewPosition.ToString().ToLowerInvariant() }, variant, "mateInOne"));
                            break;
                        }
                    }
                }
            }
        }
Example #6
0
        public static void TestUndoChecks()
        {
            ThreeCheckChessGame game = new ThreeCheckChessGame();
            string initial           = game.GetFen();

            game.MakeMove(new Move("E2", "E4", Player.White), true);
            game.MakeMove(new Move("D7", "D5", Player.Black), true);
            game.MakeMove(new Move("F1", "B5", Player.White), true);

            /*
             * Assert.AreEqual(1, game.ChecksByWhite);
             * Assert.True(game.Undo());
             * Assert.AreEqual(0, game.ChecksByWhite);
             * game.Undo(2);
             * Assert.AreEqual(initial, game.GetFen());*/
            Assert.Throws <NotImplementedException>(() => game.Undo());
        }
 public static void TestRecordedChecks()
 {
     ThreeCheckChessGame game = new ThreeCheckChessGame();
     game.ApplyMove(new Move("E2", "E4", Player.White), true);
     game.ApplyMove(new Move("E7", "E5", Player.Black), true);
     game.ApplyMove(new Move("D1", "H5", Player.White), true);
     game.ApplyMove(new Move("G7", "G6", Player.Black), true);
     game.ApplyMove(new Move("H5", "E5", Player.White), true);
     Assert.AreEqual(1, game.ChecksByWhite);
     Assert.AreEqual(0, game.ChecksByBlack);
     game.ApplyMove(new Move("D8", "E7", Player.Black), true);
     game.ApplyMove(new Move("E5", "H8", Player.White), true);
     game.ApplyMove(new Move("E7", "E4", Player.Black), true);
     Assert.AreEqual(1, game.ChecksByWhite);
     Assert.AreEqual(1, game.ChecksByBlack);
     game.ApplyMove(new Move("F1", "E2", Player.White), true);
     game.ApplyMove(new Move("F8", "G7", Player.Black), true);
     game.ApplyMove(new Move("H8", "G8", Player.White), true);
     Assert.AreEqual(2, game.ChecksByWhite);
     game.ApplyMove(new Move("E8", "E7", Player.Black), true);
     game.ApplyMove(new Move("G8", "E8", Player.White), true);
     Assert.AreEqual(3, game.ChecksByWhite);
     Assert.True(game.IsWinner(Player.White));
 }
Example #8
0
        async Task HandleReceived(string text)
        {
            GameSocketMessage preprocessed = new GameSocketMessage(text);

            if (!preprocessed.Okay)
            {
                await Send("{\"t\":\"error\",\"d\":\"invalid message\"}");

                return;
            }
            switch (preprocessed.Type)
            {
            case "move":
            case "premove":
                if (Subject.Result != Game.Results.ONGOING)
                {
                    await Send("{\"t\":\"error\",\"d\":\"The game is not ongoing.\"}");

                    return;
                }
                MoveSocketMessage moveMessage = new MoveSocketMessage(preprocessed);
                if (!moveMessage.Okay)
                {
                    await Send("{\"t\":\"error\",\"d\":\"invalid message\"}");

                    return;
                }
                if ((Subject.ChessGame.WhoseTurn == Player.White && !Subject.White.Equals(client)) ||
                    (Subject.ChessGame.WhoseTurn == Player.Black && !Subject.Black.Equals(client)))
                {
                    await Send("{\"t\":\"error\",\"d\":\"no permission\"}");

                    return;
                }
                bool flagged = await HandlePotentialFlag(Subject.ChessGame.WhoseTurn.ToString().ToLowerInvariant());

                if (flagged)
                {
                    return;
                }
                if (!Regex.IsMatch(moveMessage.Move, "([a-h][1-8]-[a-h][1-8](-[qrnbk])?|[PNBRQ]@[a-h][1-8])"))
                {
                    await Send("{\"t\":\"error\",\"d\":\"invalid message format\"}");

                    return;
                }
                string[] moveParts;
                MoveType mt = MoveType.Move;

                if (!moveMessage.Move.Contains("@"))
                {
                    moveParts = moveMessage.Move.Split('-');
                    Move move;
                    if (moveParts.Length == 2)
                    {
                        move = new Move(moveParts[0], moveParts[1], Subject.ChessGame.WhoseTurn);
                    }
                    else
                    {
                        move = new Move(moveParts[0], moveParts[1], Subject.ChessGame.WhoseTurn, moveParts[2][0]);
                    }

                    if (Subject.ChessGame.IsValidMove(move))
                    {
                        mt = await gameRepository.RegisterMoveAsync(Subject, move);
                    }
                    else if (moveMessage.Type == "move")
                    {
                        await Send("{\"t\":\"error\",\"d\":\"invalid move\"}");

                        return;
                    }
                    else
                    {
                        return;     // for premoves, invalid moves can be silently ignored as mostly the problem is just a situation change on the board
                    }
                }
                else
                {
                    CrazyhouseChessGame zhGame = Subject.ChessGame as CrazyhouseChessGame;
                    if (zhGame == null)
                    {
                        await Send("{\"t\":\"error\",\"d\":\"invalid move\"}");

                        return;
                    }

                    string[] typeAndPos = moveMessage.Move.Split('@');

                    Position pos   = new Position(typeAndPos[1]);
                    Piece    piece = Subject.ChessGame.MapPgnCharToPiece(typeAndPos[0][0], Subject.ChessGame.WhoseTurn);
                    Drop     drop  = new Drop(piece, pos, piece.Owner);

                    if (zhGame.IsValidDrop(drop))
                    {
                        await gameRepository.RegisterDropAsync(Subject, drop);
                    }
                    else
                    {
                        await Send("{\"t\":\"invalidDrop\",\"pos\":\"" + pos + "\"}");
                    }

                    moveParts = new string[] { pos.ToString().ToLowerInvariant(), pos.ToString().ToLowerInvariant() };
                }

                string check = null;
                if (Subject.ChessGame.IsInCheck(Subject.ChessGame.WhoseTurn))
                {
                    check = Subject.ChessGame.WhoseTurn.ToString().ToLowerInvariant();
                }

                string outcome = null;
                if (Subject.ChessGame.IsWinner(Player.White))
                {
                    outcome = "1-0, white wins";
                    await gameRepository.RegisterGameResultAsync(Subject, Game.Results.WHITE_WINS, Game.Terminations.NORMAL);
                }
                else if (Subject.ChessGame.IsWinner(Player.Black))
                {
                    outcome = "0-1, black wins";
                    await gameRepository.RegisterGameResultAsync(Subject, Game.Results.BLACK_WINS, Game.Terminations.NORMAL);
                }
                else if (Subject.ChessGame.IsDraw() || Subject.ChessGame.DrawCanBeClaimed)
                {
                    outcome = "½-½, draw";
                    await gameRepository.RegisterGameResultAsync(Subject, Game.Results.DRAW, Game.Terminations.NORMAL);
                }

                Dictionary <string, object> messageForPlayerWhoseTurnItIs = new Dictionary <string, object>();
                Dictionary <string, object> messageForOthers = new Dictionary <string, object>();
                messageForPlayerWhoseTurnItIs["t"]         = messageForOthers["t"] = "moved";
                messageForPlayerWhoseTurnItIs["fen"]       = messageForOthers["fen"] = Subject.ChessGame.GetFen();
                messageForPlayerWhoseTurnItIs["dests"]     = moveCollectionTransformer.GetChessgroundDestsForMoveCollection(Subject.ChessGame.GetValidMoves(Subject.ChessGame.WhoseTurn));
                messageForPlayerWhoseTurnItIs["lastMove"]  = messageForOthers["lastMove"] = new string[] { moveParts[0], moveParts[1] };
                messageForPlayerWhoseTurnItIs["turnColor"] = messageForOthers["turnColor"] = Subject.ChessGame.WhoseTurn.ToString().ToLowerInvariant();
                messageForPlayerWhoseTurnItIs["plies"]     = messageForOthers["plies"] = Subject.ChessGame.Moves.Count;
                Dictionary <string, double> clockDictionary = new Dictionary <string, double>
                {
                    ["white"] = Subject.ClockWhite.GetSecondsLeft(),
                    ["black"] = Subject.ClockBlack.GetSecondsLeft()
                };
                messageForPlayerWhoseTurnItIs["clock"]     = messageForOthers["clock"] = clockDictionary;
                messageForPlayerWhoseTurnItIs["check"]     = messageForOthers["check"] = check;
                messageForPlayerWhoseTurnItIs["isCapture"] = messageForOthers["isCapture"] = mt.HasFlag(MoveType.Capture);
                if (outcome != null)
                {
                    messageForPlayerWhoseTurnItIs["outcome"]     = messageForOthers["outcome"] = outcome;
                    messageForPlayerWhoseTurnItIs["termination"] = messageForOthers["termination"] = Game.Terminations.NORMAL;
                }
                if (Subject.ChessGame is ThreeCheckChessGame)
                {
                    ThreeCheckChessGame tccg = Subject.ChessGame as ThreeCheckChessGame;
                    messageForPlayerWhoseTurnItIs["additional"] = messageForOthers["additional"] = string.Format("White delivered {0} check(s), black delivered {1}.", tccg.ChecksByWhite, tccg.ChecksByBlack);
                }
                messageForPlayerWhoseTurnItIs["pocket"] = messageForOthers["pocket"] = Subject.ChessGame.GenerateJsonPocket();
                messageForOthers["dests"] = new Dictionary <object, object>();
                string jsonPlayersMove    = JsonConvert.SerializeObject(messageForPlayerWhoseTurnItIs);
                string jsonSpectatorsMove = JsonConvert.SerializeObject(messageForOthers);
                await handlerRepository.SendAll(gameId, jsonPlayersMove, jsonSpectatorsMove, p => (Subject.White.Equals(p) && Subject.ChessGame.WhoseTurn == Player.White) || (Subject.Black.Equals(p) && Subject.ChessGame.WhoseTurn == Player.Black));

                break;

            case "chat":
                ChatSocketMessage chatSocketMessage = new ChatSocketMessage(preprocessed);
                if (!chatSocketMessage.Okay)
                {
                    await Send("{\"t\":\"error\",\"d\":\"invalid message\"}");

                    return;
                }

                int?   senderUserId = null;
                string displayName  = null;
                if (client is RegisteredPlayer)
                {
                    senderUserId = (client as RegisteredPlayer).UserId;
                    displayName  = (await userRepository.FindByIdAsync(senderUserId.Value)).Username;
                }
                else
                {
                    if (client.Equals(Subject.White))
                    {
                        displayName = "[white]";
                    }
                    else if (client.Equals(Subject.Black))
                    {
                        displayName = "[black]";
                    }
                }

                if (displayName == null)
                {
                    await Send("{\"t\":\"error\",\"d\":\"Anonymous users cannot use the Spectators' chat.\"}");

                    return;
                }

                ChatMessage chatMessage = new ChatMessage(senderUserId, displayName, chatSocketMessage.Content);
                Dictionary <string, string> forPlayers    = null;
                Dictionary <string, string> forSpectators = null;
                string jsonPlayersChat    = null;
                string jsonSpectatorsChat = null;
                if (chatSocketMessage.Channel == "player")
                {
                    await gameRepository.RegisterPlayerChatMessageAsync(Subject, chatMessage);

                    forPlayers = new Dictionary <string, string>()
                    {
                        { "t", "chat" }, { "channel", "player" }, { "msg", chatMessage.GetHtml() }
                    };
                    jsonPlayersChat = JsonConvert.SerializeObject(forPlayers);
                }
                else if (chatSocketMessage.Channel == "spectator")
                {
                    if (!(client is RegisteredPlayer))
                    {
                        await Send("{\"t\":\"error\",\"d\":\"Anonymous users cannot use the Spectators' chat.\"}");

                        return;
                    }
                    await gameRepository.RegisterSpectatorChatMessageAsync(Subject, chatMessage);

                    forSpectators = new Dictionary <string, string>()
                    {
                        { "t", "chat" }, { "channel", "spectator" }, { "msg", chatMessage.GetHtml() }
                    };
                    jsonSpectatorsChat = JsonConvert.SerializeObject(forSpectators);
                    if (Subject.Result != Game.Results.ONGOING)
                    {
                        jsonPlayersChat = jsonSpectatorsChat;
                    }
                }
                await handlerRepository.SendAll(gameId, jsonPlayersChat, jsonSpectatorsChat, p => Subject.White.Equals(p) || Subject.Black.Equals(p));

                break;

            case "syncClock":
                Dictionary <string, object> syncedClockDict = new Dictionary <string, object>()
                {
                    { "t", "clock" },
                    { "white", Subject.ClockWhite.GetSecondsLeft() },
                    { "black", Subject.ClockBlack.GetSecondsLeft() },
                    { "run", Subject.ChessGame.Moves.Count > 1 && Subject.Result == Game.Results.ONGOING },
                    { "whoseTurn", Subject.ChessGame.WhoseTurn.ToString().ToLowerInvariant() }
                };
                await Send(JsonConvert.SerializeObject(syncedClockDict));

                break;

            case "flag":
                FlagSocketMessage flagMessage = new FlagSocketMessage(preprocessed);
                if (!flagMessage.Okay)
                {
                    await Send("{\"t\":\"error\",\"d\":\"invalid message\"}");

                    return;
                }
                await HandlePotentialFlag(flagMessage.Player);

                break;

            case "syncChat":
                Dictionary <string, object> syncedChat = new Dictionary <string, object>
                {
                    ["t"] = "chatSync"
                };
                if (Subject.White.Equals(client) || Subject.Black.Equals(client))
                {
                    syncedChat["player"] = Subject.PlayerChats.Select(x => x.GetHtml());
                }
                if (Subject.Result != Game.Results.ONGOING || !(Subject.White.Equals(client) || Subject.Black.Equals(client)))
                {
                    syncedChat["spectator"] = Subject.SpectatorChats.Select(x => x.GetHtml());
                }
                await Send(JsonConvert.SerializeObject(syncedChat));

                break;

            case "rematch-offer":
            case "rematch-yes":
                if (Subject.Result == Game.Results.ONGOING)
                {
                    await Send("{\"t\":\"error\",\"d\":\"The game is still ongoing.\"}");

                    return;
                }
                bool isWhite = false;
                bool isBlack = false;
                if (!(isWhite = Subject.White.Equals(client)) && !(isBlack = Subject.Black.Equals(client)))
                {
                    await Send("{\"t\":\"error\",\"d\":\"no permission\"}");

                    return;
                }
                bool createRematch = false;
                if (isWhite)
                {
                    await gameRepository.RegisterWhiteRematchOfferAsync(Subject);

                    if (Subject.BlackWantsRematch)
                    {
                        createRematch = true;
                    }
                }
                else
                {
                    await gameRepository.RegisterBlackRematchOfferAsync(Subject);

                    if (Subject.WhiteWantsRematch)
                    {
                        createRematch = true;
                    }
                }
                if (createRematch)
                {
                    int posWhite;
                    int posBlack;
                    if (Subject.RematchLevel % 2 == 0)
                    {
                        posWhite = Subject.PositionWhite;
                        posBlack = Subject.PositionBlack;
                    }
                    else
                    {
                        posWhite = randomProvider.RandomPositiveInt(Subject.ShortVariantName != "RacingKings" ? 960 : 1440);
                        if (Subject.IsSymmetrical)
                        {
                            posBlack = posWhite;
                        }
                        else
                        {
                            posBlack = randomProvider.RandomPositiveInt(Subject.ShortVariantName != "RacingKings" ? 960 : 1440);
                        }
                    }
                    Game newGame = new Game(await gameRepository.GenerateIdAsync(),
                                            Subject.Black,
                                            Subject.White,
                                            Subject.ShortVariantName,
                                            Subject.FullVariantName,
                                            posWhite,
                                            posBlack,
                                            Subject.IsSymmetrical,
                                            Subject.TimeControl,
                                            DateTime.UtcNow,
                                            Subject.RematchLevel + 1,
                                            gameConstructor);
                    await gameRepository.AddAsync(newGame);

                    await gameRepository.SetRematchIDAsync(Subject, newGame.ID);

                    string rematchJson = "{\"t\":\"rematch\",\"d\":\"" + newGame.ID + "\"}";
                    await Send(rematchJson);

                    await handlerRepository.SendAll(gameId, rematchJson, null, x => true);
                }
                else
                {
                    string rematchOfferJson = "{\"t\":\"rematch-offer\"}";
                    await handlerRepository.SendAll(gameId, rematchOfferJson, null, x => x.Equals(isWhite ? Subject.Black : Subject.White));
                }
                break;

            case "rematch-no":
                if (Subject.Result == Game.Results.ONGOING)
                {
                    await Send("{\"t\":\"error\",\"d\":\"The game is still ongoing.\"}");

                    return;
                }
                bool isWhite_ = false;
                bool isBlack_ = false;
                if (!(isWhite_ = Subject.White.Equals(client)) && !(isBlack_ = Subject.Black.Equals(client)))
                {
                    await Send("{\"t\":\"error\",\"d\":\"no permission\"}");

                    return;
                }
                await gameRepository.ClearRematchOffersAsync(Subject);

                await handlerRepository.SendAll(gameId, "{\"t\":\"rematch-decline\"}", null, x => x.Equals(isWhite_ ? Subject.Black : Subject.White));

                break;

            case "resign":
                if (Subject.Result != Game.Results.ONGOING)
                {
                    await Send("{\"t\":\"error\",\"d\":\"The game is not ongoing.\"}");

                    return;
                }
                bool whiteResigns;
                if (!(whiteResigns = Subject.White.Equals(client)) && !Subject.Black.Equals(client))
                {
                    await Send("{\"t\":\"error\",\"d\":\"no permission\"}");

                    return;
                }
                if (Subject.Result != Game.Results.ONGOING)
                {
                    await Send("{\"t\":\"error\",\"d\":\"Game is not ongoing.\"}");

                    return;
                }
                string outcomeAfterResign;
                if (!whiteResigns)
                {
                    outcomeAfterResign = "1-0, white wins";
                    await gameRepository.RegisterGameResultAsync(Subject, Game.Results.WHITE_WINS, Game.Terminations.RESIGNATION);
                }
                else
                {
                    outcomeAfterResign = "0-1, black wins";
                    await gameRepository.RegisterGameResultAsync(Subject, Game.Results.BLACK_WINS, Game.Terminations.RESIGNATION);
                }
                Dictionary <string, string> outcomeResponseDict = new Dictionary <string, string>()
                {
                    { "t", "outcome" },
                    { "outcome", outcomeAfterResign },
                    { "termination", Game.Terminations.RESIGNATION }
                };
                await handlerRepository.SendAll(gameId, JsonConvert.SerializeObject(outcomeResponseDict), null, x => true);

                break;

            case "abort":
                if (Subject.Result != Game.Results.ONGOING)
                {
                    await Send("{\"t\":\"error\",\"d\":\"The game is not ongoing.\"}");

                    return;
                }
                if (!Subject.White.Equals(client) && !Subject.Black.Equals(client))
                {
                    await Send("{\"t\":\"error\",\"d\":\"no permission\"}");

                    return;
                }
                if (Subject.UciMoves.Count > 1)
                {
                    await Send("{\"t\":\"error\",\"d\":\"It's too late to abort.\"}");

                    return;
                }
                await gameRepository.RegisterGameResultAsync(Subject, Game.Results.ABORTED, Game.Terminations.ABORTED);

                Dictionary <string, string> abortResultDict = new Dictionary <string, string>()
                {
                    { "t", "outcome" },
                    { "outcome", Game.Results.ABORTED },
                    { "termination", Game.Terminations.ABORTED }
                };
                await handlerRepository.SendAll(gameId, JsonConvert.SerializeObject(abortResultDict), null, x => true);

                break;

            case "draw-offer":
            case "draw-yes":
                if (Subject.Result != Game.Results.ONGOING)
                {
                    await Send("{\"t\":\"error\",\"d\":\"The game is not ongoing.\"}");

                    return;
                }
                bool whiteOfferingDraw = false;
                bool blackOfferingDraw = false;
                if (!(whiteOfferingDraw = Subject.White.Equals(client)) && !(blackOfferingDraw = Subject.Black.Equals(client)))
                {
                    await Send("{\"t\":\"error\",\"d\":\"no permission\"}");

                    return;
                }
                if (whiteOfferingDraw)
                {
                    await gameRepository.RegisterWhiteDrawOfferAsync(Subject);
                }
                else
                {
                    await gameRepository.RegisterBlackDrawOfferAsync(Subject);
                }
                if (Subject.WhiteWantsDraw && Subject.BlackWantsDraw)
                {
                    await gameRepository.RegisterGameResultAsync(Subject, Game.Results.DRAW, Game.Terminations.NORMAL);

                    Dictionary <string, string> drawResultDict = new Dictionary <string, string>()
                    {
                        { "t", "outcome" },
                        { "outcome", Game.Results.DRAW },
                        { "termination", Game.Terminations.NORMAL }
                    };
                    await handlerRepository.SendAll(SubjectID, JsonConvert.SerializeObject(drawResultDict), null, x => true);
                }
                else
                {
                    string rematchOfferJson = "{\"t\":\"draw-offer\"}";
                    await handlerRepository.SendAll(gameId, rematchOfferJson, null, x => x.Equals(whiteOfferingDraw ? Subject.Black : Subject.White));
                }
                break;

            case "draw-no":
                if (Subject.Result != Game.Results.ONGOING)
                {
                    await Send("{\"t\":\"error\",\"d\":\"The game is not ongoing.\"}");

                    return;
                }
                bool whiteDecliningDraw = false;
                bool blackDecliningDraw = false;
                if (!(whiteDecliningDraw = Subject.White.Equals(client)) && !(blackDecliningDraw = Subject.Black.Equals(client)))
                {
                    await Send("{\"t\":\"error\",\"d\":\"no permission\"}");

                    return;
                }
                if (whiteDecliningDraw && !Subject.BlackWantsDraw)
                {
                    await Send("{\"t\":\"error\",\"d\":\"You have no open draw offers.\"}");

                    return;
                }
                if (blackDecliningDraw && !Subject.WhiteWantsDraw)
                {
                    await Send("{\"t\":\"error\",\"d\":\"You have no open draw offers.\"}");

                    return;
                }
                await gameRepository.ClearDrawOffersAsync(Subject);

                await handlerRepository.SendAll(gameId, "{\"t\":\"draw-decline\"}", null, x => x.Equals(whiteDecliningDraw ? Subject.Black : Subject.White));

                break;

            case "keepAlive":
                await Send("{\"t\":\"keepAlive\"}");

                break;
            }
        }
 public static void TestFenGeneration()
 {
     ThreeCheckChessGame game = new ThreeCheckChessGame("rnb1kb1Q/pppp1p1p/5np1/8/8/8/PPPPKPPP/RNB3NR w q - 1 7 +1+2");
     game.ApplyMove(new Move("H8", "F8", Player.White), true);
     Assert.AreEqual("rnb1kQ2/pppp1p1p/5np1/8/8/8/PPPPKPPP/RNB3NR b q - 0 7 +2+2", game.GetFen());
 }
 public static void TestFenCheckCounter()
 {
     ThreeCheckChessGame game = new ThreeCheckChessGame("rnb1kbnQ/pppp1p1p/6p1/8/8/8/PPPPqPPP/RNB1K1NR w KQq - 0 6 +1+2");
     Assert.AreEqual(1, game.ChecksByWhite);
     Assert.AreEqual(2, game.ChecksByBlack);
 }