We all know that part of the story, near the climax, where the villain whips out a puzzle that the heroes must solve to save their friend(s)/the earth/the universe/Cyberton/Fairytopia. And solving the riddle takes only seconds and a little bit of introspection for the hero and the days has been saved!
That's because the villain wasn't using these. These puzzles would have doomed everybody.
1. The Isis Adventure makes this list for the fact that it isn't even one puzzle, but five; each one holding a key to the next, each one impossible to do if you haven't done the last. The last two parts of the puzzle aren't even available yet, and are scheduled for release this year and 2015.
2. World's Toughest Sudoku. We're not even good enough at Sudoku to fully comprehend the pain this puzzle must inflict on would-be solvers.
3. Einstein's Riddle. There's no proof it's actually by Einstein, and some people claim it was written by Lewis Carroll. Sources will often say that only two percent of the population will be able to solve the riddle.
4. The Hardest Logic Puzzle Ever. The guy who made this one up wasn't bragging. Tell us if this doesn't leave you with a migraine:
"Three gods A, B, and C are called, in no particular order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is a completely random matter. Your task is to determine the identities of A, B, and C by asking three yes-no questions; each question must be put to exactly one god. The gods understand English, but will answer all questions in their own language, in which the words for yes and no are da and ja, in some order. You do not know which word means which."
5. 3D New York Puzzle. Start spreading the news. I'm leaving this puzzle... to masochists. Because I don't want Family Puzzle Night to turn into Sweat 'Til Dawn with Bleeding Cuticles Night. If you managed to finish the puzzle, do you think you'd ever take it down without losing your mind?
6. Ravensburger Silver Krypt. You know what's even better than a 3D New York? A swirling vortex of uniform grey, slowly sucking every iota of joy and pleasure out of your soul.
7. Creation of Man Puzzle. This is a 6000-piece puzzle of Michelangelo's Creation of Man. 6000 pieces. Proportionally, that means Adam's manly parts alone are 56 pieces.
8. Ravensburger 32,000 piece puzzle. You thought 6000 was a lot for a puzzle? Well, Raven and his burger have another one coming at you: it weights 42 pounds, and is officially the largest jigsaw puzzle ever made.