The story of Taikyoku Renju revolves around the professional variant of the board game gomoku, which is also known as renju. The objective of the game is to get five of your symbols in a row on the 15x15 Go board. The black player has an advantage since they can make the first move. To balance this out, the renju variant limits the moves allowed to the black player.
The gameplay of Taikyoku Renju is centered around strategy and skill. Players take turns placing their symbols on the board, trying to create a line of five in a row horizontally, vertically, or diagonally. The game features three difficulty levels for single-player mode, which provides an increased challenge as the player progresses through the matches. Multiplayer modes are also available via link cable, allowing players to compete against each other. Additionally, there is a puzzle mode that presents randomized renju situations, testing the player's abilities to win from given starting positions.