• Each player starts with 4 pieces lined up on their own edge of the board.
• Move one piece per turn, one step along a line.
• Trap an enemy piece between two of yours in a straight line to capture it.
• Win by reducing your opponent to one piece, or leaving them with no legal move.
• If 40 moves in a row (both sides counted) pass with no capture, the game is a draw.

A family of Korean folk board games, centuries old. Jul-gonu is the simplest — just for learning the basics. Once it clicks, play Cham-gonu for the real game.