◇ Just read — no move neededGomoku is played on the intersections of a 15×15 board. Black moves first, then players alternate, and nothing is ever taken away: every stone stays where it lands, so the position only grows richer. The first side to line up five of its own stones — horizontally, vertically or diagonally — wins. Because nothing is captured, a stone is never wasted: it threatens forever, and the first-move lead black enjoys is precisely why the renju family eventually had to bind black with forbidden hands.