7 pieces · infinite shapes
🔶 Tangram
The 4,000-year-old puzzle: seven simple pieces, one shadow shape to fill. Drag, rotate and flip the pieces until the silhouette is covered exactly — every target is generated from a real arrangement, so it always fits.
Drag a piece to move it. Tap it once to select, tap again to rotate 45° — or press the ⟳ handle floating beside it. Only the parallelogram gets a ⇋ flip handle; the other six are mirror-symmetric. Cover ≥97% of the shadow with no piece sticking out to win.