Can You Solve the 10 Hardest Logic Puzzles Ever Created?

So you think you are clever, right? Then here is your chance to pit your brain against some of the world's hardest logic puzzles ever created. After having created number puzzles like Calcudoku and Killer Sudoku for many years, I decided to try and find the most challenging ones out there. Every once in a while I… » 8/08/13 10:00am 8/08/13 10:00am