1907 the major differences between the games had been introduced. These major differences were: 13 players per team as opposed to 15 in union (the two "missing" are the flankers) The "play the ball" (heeling the ball back after a tackle) rather than a ruck The elimination of the line-out A slightly different scoring structure, with all goals only being worth 2 points See: Rugby league gameplay for more on the current game. During this period the Northern Union began to develop the British game's major tournaments. The league championship, after initially being played as one competition, was split into two sections, the Lancashire and Yorkshire leagues, with only a limited number of inter-county games. This necessitated a play-off structure to determine the overall champions. A nationwide cup, the Challenge Cup was introduced, and soon became the biggest draw in the sport. Finally, in 1905, the Lancashire and Yorkshire Cups were introduced, thus completing a structure that was to last until the 1960s. There were therefore four trophies on offer to any one club, and the "Holy Grail" was to win "All Four Cups". As it became obvious that two codes of rugby were going to co-exist for the foreseeable future, those interested in the game needed to be able to distinguish between them. It became customary to describe those teams affiliated to the NU as 'playing in the league' hence "rugby league" while those which remained affiliated to the RFU (who did not play in a league) as playing "rugby union". Rugby League in New Zealand In 1905, as New Zealand's rugby union team, the All Blacks, toured Britain, they witnessed first-hand the growing popularity of the Northern Union games. In 1906, All Black George William Smith, while on his way home, met an Australian entrepreneur, James J. Giltinan to discuss the potential of professional rugby in Australasia. In the meantime, a less-well known New Zealand rugby union player, Albert Henry Baskerville (or Baskiville), was about to recruit a group of players for a professional tour of Great Britain. It is believed that Baskerville first became aware of the profits to be made from such a venture while he was working at the Wellington Post Office in 1906: a colleague had a coughing fit and dropped a British newspaper. Baskerville picked it up and noticed a report about a Northern Union match that over 40,000 people had attended. Baskerville