Free puzzle · ages 7+
Diamond Puzzle
Fill the wooden diamond with every piece. Turn them, and at the harder levels flip them, until none is left over.
- 7+ages
- 5levels
- 46,000challenges
How to play
- Drag the pieces into the diamond-shaped tray.
- Tap to turn, double-tap to flip.
- Fill the diamond with every piece.
What your child learns
Turning pieces to fit the diamond’s sharp corners trains careful looking and patience.
- Spatial reasoning Picture a piece turned or flipped before you move it.
- Shapes and geometry See how small shapes build a diamond.
- Persistence Try, check and change your mind.
Pick a level
Start easy, or jump straight to a challenge.
Ready to try Diamond Tray?
Free in the browser on phones, tablets and computers. No sign-up, no ads.
Questions parents ask
Is Diamond Tray free?
The first 3 Beginner challenges of Diamond 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 Diamond Tray for?
Diamond Tray is recommended for ages 7+. Start on Beginner and move up a level whenever it feels easy.
What does Diamond Tray teach?
Spatial reasoning: Picture a piece turned or flipped before you move it. Shapes and geometry: See how small shapes build a diamond. 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.
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