In the frame
Seen from below, a manta ray glides beneath the surface with its wide wings spread. The sun bursts through the water at the top, and two small fish swim close under the manta's pale, spotted belly.
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 manta's outline and the dark spots on its belly.
- Save for last: the bright, rippled water around the manta. About 65% of the frame has little detail, mostly spread across the frame, and those pieces look alike.
- 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.
- Place tiles with an outline, a fin or an edge first; the plain ones are easier once only a few spots remain.
- 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: sky blue (39%), deep blue (24%), ocean blue (14%) and slate grey (13%).
- sky blue39%
- deep blue24%
- ocean blue14%
- slate grey13%
- white10%
How deep it goes
Depth 4 of 5 — a demanding dive.
Wall dives drop off into bigger boards, where the plain parts of a picture start to slow you down.