Which game dates back to at least the Roman Empire: Nine Men's Morris, or Icehouse pieces?
Nine Men's Morris Nine Men's Morris is a strategy board game for two players dating at least to the Roman Empire. The game is also known as Nine Man Morris, Mill, Mills, The Mill Game, Merels, Merrills, Merelles, Marelles, Morelles and Ninepenny Marl in English. The game has also been called Cowboy Checkers and is sometimes printed on the back of checkerboards. Nine Men's Morris is a solved game in which either player can force the game into a draw.
Man-to-man wargame A man-to-man wargame (also known as a skirmish wargame) is a wargame in which units generally represent single individuals or weapons systems, and are rated not only on weaponry but may also be rated on such facets as morale, perception, skill-at-arms, etc. The game is designed so that a knowledge of military tactics, especially at the small unit or squad level, will facilitate successful gameplay. Man-to-man wargames offer an extreme challenge to the designer, as fewer variables or characteristics inherent in the units being simulated are directly quantifiable. Modern commercial board wargaming stayed away from man-to-man subjects for many years, though once the initial attempts were made to address the subject, it has evolved into a popular topic among wargamers.