Dumbo Drop: Photo Puzzle Game

Pieces fall from the top, one at a time. Line up four pieces of the same picture and it completes itself — then new pieces drop in to fill the gap.

That is the whole rule. But the fuller the board gets, the more often you catch yourself asking "where do I even put this?"

Drag the pieces around

Pieces that have already joined move together as one block. Put a group down in the wrong place and you can shove the whole thing across, so there is nothing to be careful about. Go ahead and try it.

*66 themed sets Dumbo buried in a sunflower field. Dumbo crossing the desert on a camel. Dumbo looking up at fireworks. That is 110 stages before a single picture comes round again.

• Your own photos work too Pick photos from your gallery and they become puzzles. Last year's trip, your kid, what you had for lunch. The more familiar the scene, the more confusing it gets once it is scattered into quarters — which turns out to be the fun of it.

Photos stay on your device and never leave it. The app never looks through your gallery either. Only the ones you hand it. Change your mind and Settings has 'Your photos', where you can remove them one at a time or clear the lot. Whatever stage you were on stays exactly where it was.

• It gets harder, gently Every 5th stage the board widens and there are more pieces to hold in your head. Every 10th stage the picture inside each piece is zoomed in, which makes working out where a fragment belongs a good deal trickier. Every 20th stage puts six minutes on the clock. The clock stops for ads and phone calls, so an interruption never costs you time. Past stage 100 the sets stop arriving in the order you learned them, the clock tightens a little each time, and the zoom goes in one step further.

• Stuck? Take a hint A hint finishes one set of pieces for you. Catch your breath and carry on.

You might like this if

· You want a puzzle that fits into the odd spare minute · You like games played with a fingertip and nothing else · You have been meaning to make something out of your own photos

Works without an internet connection. No account, no sign-in.