Puzzles that must be assembled can challenge even the most seasoned puzzlers! The Seventeen Puzzle raises the difficulty by requiring you to fit 17 wooden pieces into a 5x5x5 cube. The pieces are made of differently sized blocks, making it incredibly tricky to solve. Trial and error alone won't be enough; you need to plan carefully and think creatively to succeed. The Seventeen Puzzle was invented by Professor John Conway, a Cambridge mathematician. It makes a great gift for colleagues and family members who are hard to shop for - turn the tables and stump them instead! Can your group handle one of the most challenging packing problems out there?