Press “Start camera”, then turn your cube slowly in front of it so that every face is seen a few times. Tilt it now and then so two or three faces show at once.
Works best in even light against a plain background. Stickered and stickerless cubes both work.
Your cube
Pick a color below the cube, then click its stickers. Turn it with the three buttons (or drag it) to reach every face, and match it to your cube by the center colors: white on top, green in front, red on the right to start with. Keys 1–6 pick colors too.
Solution
U up, D down, F front, B back, L left, R right. A letter alone turns that face 90° clockwise as you look at it, with ' counter-clockwise, with 2 by 180°. Click any move to jump there. Keys: ← → one move, space next, P play.