hundred women's internationals have been played by over forty different nations. The first Women's Rugby World Cup was held in Wales in 1991, and was won by the United States. The second tournament took place in 1994, and from that time through 2014 was held every four years. The New Zealand Women's team then won four straight World Cups (1998, 2002, 2006, 2010) before England won in 2014. Following the 2014 event, World Rugby moved the next edition of the event to 2017, with a new four-year cycle from that point forward. New Zealand are the current World Cup holders. As well as the Women's Rugby World Cup there are also other regular tournaments, including a Six Nations, run in parallel to the men's competition. The Women's Six Nations, first played in 1996 has been dominated by England, who have won the tournament on 14 occasions, including a run of seven consecutive wins from 2006 to 2012. However, since then, England have won only in 2017; reigning champion France have won in each even-numbered year (2014, 2016, 2018) whilst Ireland won in 2013 and 2015. Professional rugby union Rugby union has been professionalised since 1995. The following table shows professional and semi-professional rugby union competitions. Variants Rugby union has spawned several variants of the full-contact, 15-a-side game. The two most common differences in adapted versions are fewer players and reduced player contact. The oldest variant is rugby sevens (sometimes 7s or VIIs), a fast-paced game which originated in Melrose, Scotland in 1883. In rugby sevens, there are only seven players per side, and each half is normally seven minutes. Major tournaments include the Hong Kong Sevens and Dubai Sevens, both held in areas not normally associated with the highest levels of the 15-a-side game. A more recent variant of the sport is rugby tens (10s or Xs), a Malaysian invention with ten players per side. Touch rugby, in which "tackles" are made by simply touching the ball carrier with two hands, is popular both as a training game and more formally as a mixed sex version of the sport played by both children and adults. Several variants have been created to introduce the sport to children with a less physical contact. Mini rugby is a version aimed at fostering the sport in children. It is played with only eight players and on a smaller pitch. Tag Rugby is a version