Nonograms
According to the UK's "Sunday Telegraph" newspaper: "Nonograms are
puzzles from Japan and are currently published each week only in The
Sunday Telegraph. Simply use your logic and skill to complete the grid
and reveal a picture or diagram."
Essentially, each row and column of a rectangular bitmap is annotated
with the respective lengths of its distinct strings of occupied cells.
The puzzlee must complete the bitmap given only these lengths:
is solved as: