In the frame
A thicket of branching staghorn coral fills the lower half of the picture, and hundreds of small orange and pink anthias hover above it. The water surface and sun rays are visible at the top.
This dive cuts the picture into 40 square tiles on a 8 × 5 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 antler-like coral branches along the bottom.
- Save for last: the turquoise water near the surface. About 21% of the frame has little detail, mostly in the top third, 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, 39 swaps or fewer finish all 40 tiles.
- Most tiles here hold a recognisable feature, so find their spots by comparing them with the preview.
- On a big board, finish one area at a time instead of chasing single tiles across the board.
Colours of the picture
Main colours, measured from the picture's pixels: teal (34%), olive (15%), turquoise (15%) and brown (14%).
- teal34%
- olive15%
- turquoise15%
- brown14%
- charcoal11%
- sky blue11%
How deep it goes
Depth 4 of 5 — a demanding dive.
Deep dives are the longest in the logbook: the largest board each game gets in the numbered dives.