The cube
Each face holds a letter. Rotate the cube to find them all, then tap faces to spell the hidden word.
Rotating
On desktop, use the arrow buttons. On mobile, swipe directly on the cube. Tap a filled tile to remove a letter.
Word lengths
5-letter puzzles: one face shows — and can't be tapped.
6-letter puzzles: all six faces are in play.
7-letter puzzles: one letter is given free — place the other six.