Each piece is solid so that you can feel its weight when you hold it in your hands. At the first glance, ?G&G? has a pretty rugged deisgn. As you start to play with it, you will see the sophistication that covered under it. The puzzle has many possibilities and, as soon as you start trying to take it apart, you will notice the several protrusions that will hinder your path. These are the challenges that you must overcome. It was designed by Jin-Hoo Ahn from South Korea. The theme of this puzzle is the letter G.