Question 15
Which of the “buildings” (A), …, (E), each consisting of exactly 5 cubes, can you not obtain from the building on the right if you are allowed to move exactly one cube?
Source note: the stem says A–E, but only A–D are printed in this paper. All four actual choices are retained. Whole-building viewing rotations are allowed; cubes are not turned into a different shape.
Source note: the stem says A–E, but only A–D are printed in this paper. All four actual choices are retained. Whole-building viewing rotations are allowed; cubes are not turned into a different shape.
