For us, and we suspect many people, the pleasure derived from a puzzle isn't so much in the doing but in the solving. Puzzles can be infuriating, testing, frustrating and tormenting. That is their fascination. Solving a puzzle by thought and ingenuity brings with it such a wonderful feeling of accomplishment, satisfaction and sense of achievement. If you've tried your hand at mechanical puzzles then you will know what we mean. If you haven't then you can't appreciate what you're missing! And, of course, if the subject is a Japanese puzzle box, you also have one of the most amazing pieces of wooden workmanship that you are ever likely to see.