Famous for being popular in Tudor times, Nine Men's Morris or ‘Merels’ dates back to at least Roman times. The board consists of a grid with twenty-four intersections. Each player has nine playing pieces. Players try to form 'mills'—three of their own pieces lined horizontally or vertically, allowing a player to remove an opponent's player from the game. A player wins by reducing the opponent to two pieces (where they could no longer form mills and thus be unable to win), or by leaving them without a legal move. Also known as nine-man morris, mill, mills, the mill game, merels, merrills, merelles, marelles, morelles and ninepenny marl.