You already know how to build a cross on one face. The first major step toward faster solving is changing where you build it. Instead of solving the cross on the top face, we're going to build it on the bottom, or Down (D) face. Typically, this will be the white face.

Why the switch? Visibility. When you solve the cross on top, your hands and the pieces you're moving constantly obscure your view of the other layers. By building it on the bottom, the top two layers remain wide open. This allows you to track pieces for your next steps while you're still solving the cross. It’s the difference between looking at your feet while you walk and looking ahead to see where you're going.

The beginner's instinct is to solve one edge piece at a time. You find the white-blue edge, bring it to the blue center, and then turn it down to match the white center. This is slow because it often requires rotating the entire cube to find the next piece and its matching center.

The key to an efficient cross is understanding relative positioning. The center pieces on a cube never change their positions relative to one another. Red is always opposite orange, and blue is always opposite green. You can use this fixed map to your advantage.

Instead of solving one edge at a time, you can place the white edge pieces in their correct positions relative to each other, even if they are not yet aligned with their corresponding side centers. For example, if you place the white-green edge next to the white-orange edge, you know they're correctly positioned relative to each other. Once all four edges are placed this way, a single D, D', or D2 move will align the entire cross with the centers simultaneously. This technique drastically reduces move count and eliminates unnecessary cube rotations.

This leads to a simple rule: every cross can be solved in eight moves or fewer. With practice, you'll begin to see the cross pattern in the scrambled cube and plan your entire sequence of moves before you even start turning. This skill is called 'inspection'.

There are three basic positions for any white edge piece you need to move to the bottom face.

Notice a pattern? The goal is almost always to get the piece into the top layer first. From there, it can be inserted anywhere with just a few moves.

A common sub-case is an edge that is correctly placed but flipped the wrong way. The simplest fix is to bring it to the top with a move like F, move it out of the way with U, fix the face you just disturbed with F', and then re-insert the edge correctly.

The true skill is combining these simple cases. For example, while you insert one edge piece, you can use that same move to simultaneously move another edge piece into a more favorable position. This is the beginning of advanced, fluid motion where every turn accomplishes multiple goals.

Ready to test your understanding? Let's see how well you've grasped these new concepts.

Mastering the downside-up cross is a huge leap. It changes your entire approach from a simple puzzle to a race against the clock. Keep practicing, and soon you'll be planning your first eight moves before your timer even starts.