Spatial Reasoning Training

3D Net Folding Puzzle

Remember a briefly shown net, mentally fold it into a 3D shape, and choose its correct view from three options. Train your spatial reasoning for free in your browser, with no sign-up or installation required.

Used … times.

Game duration
30
Unlimited, or 30–120 seconds in 15-second steps
Net display time
10, 5 and 2 seconds set how long the net stays visible. In Unlimited mode, move to the choices when you are ready.
How to Play

In Unlimited mode, the net stays visible until you move on. At 10, 5 or 2 seconds, it hides after the selected time, and you can answer while it is visible. Consecutive correct answers shorten the display time.

Best score 0
Best streak 0
Score 0
Streak 0
Level 1
Accuracy —
Which 3D shape does this net fold into?
Memorize how the faces connect while the net is visible.
Time left 30
PAUSE
FLASH
Recall the current net
Select a shape and press Check answer.
FINISH
Training complete

Keep training your visual reasoning.

Score 0
Correct answers 0
Best streak 0
Best score 0
Questions answered 0
Accuracy 0%

How to Use

  • Start: Choose a game duration and net display time, then start.
  • Memorize: While the net is visible, remember which faces touch. In timed modes, it is hidden after the selected display time.
  • Choose: Choose the matching shape from A, B or C while the net is visible or after it hides, then press Check answer.
  • Review: After an incorrect answer, the net and correct shape stay visible. The game pauses until you press Next question.
  • Level up: Consecutive correct answers shorten the display time and increase the difficulty.
  • Score: Correct answers earn points, with a bonus for consecutive correct answers.
  • Saved locally: Settings and best scores are saved in this browser.
  • Fullscreen: Use fullscreen to focus on the game.

Frequently Asked Questions

Can this game help train spatial reasoning?

Yes. Repeatedly folding a net in your mind and picturing the 3D shape gives you practice with spatial reasoning. Timed rounds and level-ups gradually increase the challenge.

Is it free? Do I need an account?

The game is free, with no account or installation required. Open this page to play in your browser. Settings and best scores are stored only in your browser.

Can I play on a phone?

Yes. The net and 3D choices fit phone screens, and you can answer by tapping. Fullscreen gives you more room to focus.

Please also review the Terms of Use for this web app before using it.

Found a bug or have feedback? Let us know here.

Report bugs, display issues, usability problems, or suggestions for improvement.
Consent
– This form is for bug reports only. In principle, we do not respond to individual submissions.
– If a submission contains defamatory, threatening, or otherwise inappropriate content, we may take appropriate action based on logs such as IP addresses.