Dterror

It's as valid a method of getting around as the Ectophial, which also only has a single destination and requires a quest.

You state in the Rogue Trader guide regarding Sudoku, that it is a Japanese game. It is not. Sudoku was first published in the early 80's in a Dell Puzzles magazine called "Math Puzzles and Logic Problems" under the name "Number Place." It didn't appear in Japan until 2-3 years later. The Japan debut was in a magazine called "Monthly Nikolist", and the owner of the magazine gave it the name Sudoku (which means single number) then. The only thing Japanese about the Sudoku game is the name, although that has stuck with it when it came back to the U.S.