Reading without boxes

Drawing boxes is how you learn this. It is not how it is used once you know it.

The box is a learning tool

After enough repetitions, a break of structure is all you need to see.

The close past the swing appears, and the leg that ran into the sweep is obvious without a rectangle on top of it. You know the range because you know which move it was.

Draw the box until you no longer need it, then stop drawing it.

The block can beat the break

There is a reason to prefer the block even when you are watching live and missed nothing.