Complex sentence: The teams were divided into four pools of six, playing over five weekends during the Autumn International and Six Nations windows, with quarter-finals on 5 or 6 March, semi-finals on 23 March and the final on 7 May.
Split into simpler sentences: The teams were divided into four pools of six, playing over five weekends during the Autumn International and Six Nations windows. The four pool winners and runners-up contested a knock-out stage, with quarter-finals on 5 or 6 March, semi-finals on 23 March and the final on 7 May.