public static void checkRoundEnd() {
        if(Server_Loader.questions.isEmpty()) {
            Server_Loader.round++;
            if(Server_Loader.round <= Server_Loader.roundsCount) {
                Server_Loader.questions = Server_Loader.questions_base.get(Server_Loader.round);
                QuestionsManager.updateTableForEverybody();
            }else {
                //Конец игры
                for(int i = 0; i < Server_Loader.threads.length; i++) if(Server_Loader.threads[i] != null) 
                    Server_Loader.threads[i].out.println("GAMEOVER");
            }
        }
    }