🖼 Nonogram

Nonograms, also known as Picross or Griddlers, are picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the side of the grid. The numbers form a discrete tomography code that reveals a hidden picture.

For example, a clue of '4 8 3' would mean there are sets of four, eight, and three filled squares, in that order, with at least one blank square between successive sets. Solving them reveals pixel art images.