Skill vs Luck was argued in the legal hearing and skill won out. This ruling was important as Poker Tournaments were under attack as violating Danish laws on gaming. The court recognized that there is an element of chance in a tournament, but stated that skill was more important to winning and therefore was a game of skilled competition.
This argument has been used in many court hearings around the world when poker was challenged as being just a game of chance. This same argument was used in California in the 1930s to legalize poker rooms. It may be the winning way to get some relief on the US law passed last year, which has hurt online poker for so many US citizens. At least that is one of the proposed tactics that those that are trying to change the law are pressing.
Playing Keno or betting on red or black at a Roulette table is a total game of chance. Deciding whether to play a hand in poker takes skill and experience to consistently make the right decisions.