> They play very fast. It can become more like poker, where deceit is a part of the game. If you spam down your stones fast enough sometimes you can skip a bowl, or drop an extra stone, in order to gain advantage.

What you describe is just a talent at cheating, and I assume against the rules of the game. In poker, bluffing is an explicit part of the game allowed by the rules. I wouldn't even call it "deceit" in that context. At the very least, these are highly distinct categories of deceit.