YOU SAID:

Sudoku is the best logic puzzle game in the world. I have never seen a puzzle in the world anymore.

INTO JAPANESE

つまり　"世界で最も難しいパズル"

BACK INTO ENGLISH

And this is the most difficult puzzle in the world.

INTO JAPANESE

つまり　"世界で最も難しいパズル"

BACK INTO ENGLISH

And this is the most difficult puzzle in the world.