Diamond Rack

Perhaps one of the most popular re-racks in the world of beer pong. The Diamond, given its tight formation, is a safe bet for any 4-cup re-rack. This rack is great for beginners who aren't the best at single target shots. If you aim for the very center you have a good chance of hitting at least one of the cups. For a more advanced/risky re-rack check out some of the alternatives.
Alternatives: Triangle + 1, 2-2 Offset

