In the frame
A small reddish-brown octopus spreads its arms across pebbles in a shallow rock pool. Green seaweed, rounded stones and tufts of red algae surround it on every side.
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 octopus and its curling arms.
- Almost every part of this frame has detail. The least distinct part is the smooth grey pebbles at the bottom, 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 (37%), charcoal (37%) and olive (26%).
- brown37%
- charcoal37%
- olive26%
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.