A game may be drawn by mutual agreement in any number of moves. Traditionally, it has been common for players to agree to a "grandmaster draw" after playing about 10–15 moves of known opening theory and making no serious effort to win. This is usually done to preserve energy in a tournament, after a devastating loss in the previous round of the tournament, or in the final round when no prize money is at stake. There has been some debate over the ethics of the practice, and recently there has been a trend away from such games, with many tournaments adopting measures to discourage short draws. If the tournament officials (unlike those at Graz and Lishui) do not object, a game may even be agreed drawn without a single move being played. According to ChessGames.com, in the 1968 Skopje–Ohrid tournament Dragoljub Janosevic and Efim Geller agreed to a draw without playing any moves. Tony Miles and Stewart Reuben did the same thing in the last round of the Luton 1975 tournament, "with the blessing of the controller", in order to assure themselves of first and second places respectively.