Here's a trick you can do anywhere, with anything! - The Criss-Cross. This week we've got one of the most versatile puzzles we've ever shown: The Criss-Cross. All you need are six... things. These things could be coasters, matchbooks, iguanas, whatever. The Puzzle: Designate 7 spots on the table. Put 3 of your things (we used matchbooks) on the far left 3 spots. Put the other 3 things (we used sweetener packets) on the far right spots. The goal is to get all 3 of the matchbooks to the far right, and all 3 of the packets to the far left. Thus, Chris-Cross. The Rules: