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Mental Rotation Puzzles

One shape, four options. Only one is the same shape turned; the others are mirror images or different shapes.

Practice

1 of 10, score 0

Which shape is the same as this one, only turned?

Pick A, B, C or D.

How to solve mental rotation questions

  1. Count the arms. Compare how many cubes are in each straight run. If the counts differ, it is a different shape and you can rule it out at once.
  2. Anchor on one end. Pick a distinctive end, then follow the turns from it: forward, up, left, and so on.
  3. Check the handedness. A turned copy keeps the same order of turns. A mirror image swaps left and right, and that is the trap in most wrong answers.

Why the answer is always certain

Every shape here is checked by computer to be different from its own mirror image, and every option is tested against all 24 ways a cube figure can be turned. Exactly one option is the same shape.

Mental rotation is a close cousin of reading orthographic views: both ask you to hold a 3D shape in your head and see it from another side. The orthographic views guide covers that skill step by step.

Mental rotation questions

What is mental rotation?

Turning an object in your mind to compare it with another. Psychologists have studied it since the 1970s: the classic experiment by Shepard and Metzler asked people whether two drawings of cube figures showed the same object.

How do I spot a mirror image?

Pick one distinctive part, such as the end of the longest arm, and follow the order of the turns from there. A turned copy keeps the same left-and-right order; a mirror image reverses it, and no amount of turning fixes that.

Can I get faster at it?

Yes. Mental rotation speed and accuracy improve with practice, and short regular sessions are enough to notice the difference.

Is this like a mental rotation test?

Yes. The questions follow the same pattern as the mental rotation items in many spatial and aptitude tests: one shape, and options that are either the same shape turned or a mirror image.

More 3D practice: cube nets, counting cubes and the 3D puzzle game.