GoRoGo (五路碁) is a Go variant for a 5x5 board with the main goal being to have captured more stones than the opponent after both players have played all 12 of their stones (so 24 turns). Much as in Capture Go, players cannot pass, and lose if they have no legal move on their turn. 5 Henge stones (変化駒) are neutral once placed, and are treated as the color of the current player’s turn
GoRoGo was invented by Mitsuo Yamamoto, whose full description of the game with complete rules can be read here. Play it now on Abstract Play here