How the mental rotation test works
You see a reference letter on the left and a rotated copy on the right. Your job: tell whether the copy is the same shape simply turned to a new angle, or a mirror image of it. Press Same or Mirror. Right answers score a point; wrong answers cost you a moment before the next pair. You have 60 seconds, and your score is how many you get right. It measures mental rotation — spinning a shape in your mind's eye.
What is a good score?
- Under 6 — still finding the trick.
- 10 to 15 — a good pace.
- 20 to 26 — fast spatial reasoning.
- 32+ — excellent.
Tips to decide faster
- Find one distinctive feature — like which way an F's arms point — and track just that.
- Mentally rotate the copy upright, then check if it matches or is flipped.
- Don't guess — a wrong answer costs more time than thinking for a beat.
Keyboard shortcuts: press S or Left for Same, M or Right for Mirror. Enjoy spatial puzzles? Try visual memory or the chimp test.
Frequently asked questions
What is mental rotation?
Mental rotation is the ability to picture how a shape would look if it were turned to a different angle. This test challenges it by asking whether a rotated letter is the same shape or a mirror image.
How is Same or Mirror scored?
By how many pairs you answer correctly in 60 seconds. Right answers score a point; wrong answers add a short delay before the next pair.
What is a good score?
Getting 10 to 15 correct is a good pace, 20 to 26 is fast, and 32 or more is excellent.
Can I use the keyboard?
Yes. Press S or the Left arrow for Same, and M or the Right arrow for Mirror. On a phone, just tap the buttons.