Brilliant.org - Solve today's math problem to prove your skill at geometry... and tiling puzzles. Try your answer on Brilliant: https:// brilliant.org/community-problem/tiling-puzzle/?group=aZBy8EnNRqyj&ref_id=75151 Image credit: M.C. Escher | Facebook
![Rich Ferguson on Twitter: "These “for genius only” puzzles... the answer is 15. Now go see why and what you missed. You're welcome. More of a trick than brilliant math. #puzzle #iq # Rich Ferguson on Twitter: "These “for genius only” puzzles... the answer is 15. Now go see why and what you missed. You're welcome. More of a trick than brilliant math. #puzzle #iq #](https://pbs.twimg.com/media/DcCej4KUQAAheaJ.jpg)
Rich Ferguson on Twitter: "These “for genius only” puzzles... the answer is 15. Now go see why and what you missed. You're welcome. More of a trick than brilliant math. #puzzle #iq #
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Amazon.com: Mensa® Everyday Challenging Mind Games: 100 Mastermind Math and Logic Puzzles (Mensa® Brilliant Brain Workouts): 9781510766877: Coughlin, Fred, Mensa, American: Books
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