Sudoku ad I saw on Tumblr. It has 17 different solutions when I put it through a solution checker. : r/sudoku
Solving this Sudoku means your IQ is higher than 220! - YouTube
Sudoku IQ – Apps on Google Play
No one has an IQ higher than 120, it seems, since this sudoku cannot be solved. (Try to fill out the horizontal middle row, for starters.) : r/facepalm
Can you create 2048? | By Sudoku | Facebook
Wow, I guess I'm actually the smartest person that ever lived then : r/ sudoku
公式】Sudoku Puzzle Games on Twitter: "People who play this game for 30 minutes a day have #IQ higher than 120 #Sudoku #CasualGame #PuzzleGame" / Twitter
公式】Sudoku Puzzle Games on Twitter: "Solving this puzzle means your IQ is higher than 240.#sudoku #puzzle #sudokupuzzle #puzzles #puzzlegames #games https://t.co/f1PbHyBy1I" / Twitter