In the frame
A bright red crab stands on a tangle of olive-brown seaweed at the edge of the sea. Smooth dark pebbles lie behind it, and small white waves wash in across the top of the picture.
This dive cuts the picture into 24 square tiles on a 6 × 4 board and shuffles them. Swap two tiles at a time until the picture is whole; tiles that reach their home spot lock.
Dive plan
- Start with the easy part: the red crab in the centre.
- Almost every part of this frame has detail. The least distinct part is the white foam of the waves, and even that has texture to go on.
- Swap each tile straight to its home spot; it locks there, and the tile you displaced is the next one to place.
- If every swap sends a tile home, 23 swaps or fewer finish all 24 tiles.
- Most tiles here hold a recognisable feature, so find their spots by comparing them with the preview.
- Before each swap, compare the tile with the preview; a careful swap beats two quick ones.
Colours of the picture
Main colours, measured from the picture's pixels: brown (36%), charcoal (25%), grey (18%) and slate grey (11%).
- brown36%
- charcoal25%
- grey18%
- slate grey11%
- sky blue10%
How deep it goes
Depth 2 of 5 — an easy dive.
Wall dives drop off into bigger boards, where the plain parts of a picture start to slow you down.