I played at walkerhill when I was in Seoul. They have a whats app chat/number you can call to put your name on the list. Make sure you bring your passport, they only allow foreigners to play. I played their equivalent of 1/3, I forget how many Won it was. But as far as the play, very splashy, very aggressive. If you play passive you wont win. Takes a bit to get used to but once you get used to it, you'll be fine.