
Free puzzle · ages 5+
Block Design Puzzle
Every block has black and white patterns on its faces. Turn and arrange them until the tray shows the picture on the card.
Block-design puzzles from 1920s America.
- 5+ages
- 5levels
- 3,503challenges
- USAfrom

How to play
- Copy the black-and-white picture on the card.
- Tap a block to turn it, swipe to roll it onto another face.
- Every block has the same six faces, so position doesn’t matter, only which face is up.
What your child learns
Breaking a picture into parts and rebuilding it is a classic measure of spatial reasoning. Here it’s simply a satisfying puzzle with cards from one star to five.
- Spatial reasoning Break a picture into parts and rebuild it.
- Pattern recognition Spot the shapes hiding inside a design.
- Persistence Try, check and change your mind.
- Working memory Hold the card’s picture in mind while turning blocks.
Pick a level
Start easy, or jump straight to a challenge.
Ready to try Hidden Blocks?
Free in the browser on phones, tablets and computers. No sign-up, no ads.
Questions parents ask
Is Hidden Blocks free?
The first 3 Beginner challenges of Hidden Blocks are free in the browser, with no sign-up and no ads. Family Pro unlocks every challenge at all five levels, the hint coach, solutions and saved progress. During early access, every level is open to try.
What age is Hidden Blocks for?
Hidden Blocks is recommended for ages 5+. Start on Beginner and move up a level whenever it feels easy.
What does Hidden Blocks teach?
Spatial reasoning: Break a picture into parts and rebuild it. Pattern recognition: Spot the shapes hiding inside a design. Persistence: Try, check and change your mind. Working memory: Hold the card’s picture in mind while turning blocks.
Does it work on phones and tablets?
Yes. It plays in any modern browser on phones, tablets and computers, with touch or a mouse.


