Fifteens, thirteens, tens, nines, sevens and now a dozen.
A new international rugby code called the World 12s has been launched.
The inaugural men's tournament, featuring eight 24-player squads, will be staged across three weeks in England next August with the women's first event taking place a year later.
The games will be 30 minutes, with six forwards and six backs on the field. An Indian Premier League type auction will be used to pick the players.
It faces a hurdle securing players however with the inaugural tournament clashing with the Rugby Championship and the pre-season in the Northern Hemisphere.