Skill

Perspective taking

Stand somewhere else. From the front, side, or top, a stack of cubes becomes a silhouette. Cubes hidden along the line of sight do not add a new square.

Flatten toward the view

Name the viewing plane first. Front uses width and height. A right view uses depth and height. Top uses width and depth. Then collapse every occupied column onto that plane.

This is one of the most searched spatial skills, and Foldmetry now leads Home and exam-style mixed papers with it so the first session matches that intent.

Take a new viewpoint

Worked view

  1. Lock the requested direction: front, back, left, right, or top.
  2. Ignore cubes sitting behind other cubes on that axis.
  3. Fill a grid square wherever at least one cube occupies that line of sight.
  4. Compare option grids by rows, not by a vague “looks 3D” impression.