If you cut a cube (the shape of a die) along its edges and lay it flat, you get a net. Counting shapes that match after rotating or flipping as one, a cube has exactly 11 nets. Tap the button under any net to fold it into a cube right there.
Fold every dotted line the same way and you get a cube. After folding, drag to rotate it.
Some shapes made of 6 squares still can't fold into a cube. The colored faces overlap, or the shape won't close.
At most 4 squares can be in a row. The 5th one lands on top of the 1st.
A 2×2 block puts 4 faces around one corner, so it can't fold into a cube.
This also contains a 2×2 block, so faces overlap.
Kyoten is a puzzle where you look at a model solid, draw its net, and fold it up in 3D — from simple cubes and boxes to shapes that puzzle adults. No sign-up needed.