Derrick Neiderman, a well known puzzle creator, came to Owl with an idea for a puzzle he wanted to develop. The challenge involved an unsolvable math problem that he wanted the puzzle to be able to solve with a “to be determined” trick. Owl was presented with the problem and some initial paper mock-ups of the basic idea. Owl established the trick that enabled the puzzle to be solved and delivered Derrick a full up working 3-D colored plastic model of the puzzle. Derrick took Owl’s mock-up to ThinkFun and was able to negogiate a deal with them to make and sell the puzzle. The puzzle was sold worldwide over a five year period.