Well, isn't it same to poker? people need to understand the game and how to play better in order to win. If they only know the game, but not have a high knowledge, they will be beaten by skilled players.
No, Chess is exclusively not related to poker, no single form of luck exists in chess, unless a blunder is commited. In Poker whoever doesn't understand the game wouldn't win against a skilled player, yes, but with a couple good hands like a straight flush, they stand a chance of winning, unless proven otherwise. Like I said earlier, chess is strictly on rating, luck won't help anybody in 1500 Elo win against a player in 2200 Elo in a blitz game, a low rated player can only stand a chance in a slow game. That is why it'll not be a nice way for gambling.
Cheese do we consider that as a gambling game also, yes I think so but a high skill based game that it takes expertise to defeat an opponent and as a matter of fact those that gamble on this only do that based on the confidence their have in the players and how skillful their have proven to be over time, so for that reason the players have some mental engagement and calculations to come out as winners.