Cheung Chui San was definitely no match for Tse Tsun. Before and during their first days on Ice Fire Island, Cheung Chui San routinely got his butt handed to him by Tse Tsun, and Cheung and Yan So So never tried to fight their way out of Tse Tsun's custody when they were on the ship (sailing away from Mt. Wong Poon) because Cheung Chui San correctly guessed that even if he and Yan So So were to gang up on Tse Tsun, they couldn't beat him.