In the frame
Three wooden rowing boats — blue, red and yellow — are moored in a calm little harbour beside an old stone wall. The water mirrors their colours, and a headland lies on the horizon under a pale sky.
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 three coloured boats and their reflections.
- Save for last: the pale sky and the calm water. About 34% 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, 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: brown (28%), ocean blue (18%), grey (18%) and sky blue (14%).
- brown28%
- ocean blue18%
- grey18%
- sky blue14%
- charcoal12%
- slate grey10%
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.