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

3D Maze Ball: A Worthy Waste of Five Minutes

We doubt that this "3D Balance Control Intellect Ball" will keep you occupied like a Rubik's cube for hours on end, but its tactical, 3D maze should mush your mind in just the right way and forcibly limit your normally adept problem solving techniques to find the solution in a childlike manner. 7.5-inches in diameter,… » 9/29/08 2:00pm 9/29/08 2:00pm