
Free puzzle · ages 7+
Parallelogram Puzzle
Fill the wooden parallelogram with every piece. Turn them, and at the harder levels flip them, until none is left over.
- 7+ages
- 5levels
- 47,000challenges

How to play
- Drag the pieces into the slanted tray.
- Tap to turn, double-tap to flip.
- Fill the parallelogram exactly.
What your child learns
A slanted frame makes familiar shapes look new, which is exactly the flexibility spatial reasoning needs.
- Spatial reasoning Picture a piece turned or flipped before you move it.
- Shapes and geometry See how small shapes build a parallelogram.
- Persistence Try, check and change your mind.
Pick a level
Start easy, or jump straight to a challenge.
Ready to try Parallelogram Tray?
Free in the browser on phones, tablets and computers. No sign-up, no ads.
Questions parents ask
Is Parallelogram Tray free?
The first 3 Beginner challenges of Parallelogram Tray 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 Parallelogram Tray for?
Parallelogram Tray is recommended for ages 7+. Start on Beginner and move up a level whenever it feels easy.
What does Parallelogram Tray teach?
Spatial reasoning: Picture a piece turned or flipped before you move it. Shapes and geometry: See how small shapes build a parallelogram. Persistence: Try, check and change your mind.
Does it work on phones and tablets?
Yes. It plays in any modern browser on phones, tablets and computers, with touch or a mouse.


