//send the current status of captured piece
    private void StatusAckEvent(Hashtable roomClassList)
    {
        try
        {   /* roomClassList: key = room number, value = room class
             * find a right room for received room number from a client
             * and send acknowledgement
             */
            room = (RoomHandler)roomClassList[roomData[1]];
            Send(room.getCapturedPieceStatus()+":StatusAck");
        }

        //Handle Exception
        catch (Exception ex)
        {
            Console.WriteLine(ex);
            return;
        }
    }