Paint By Numbers/en
Also known as: Pic-a-Pix
Paint some cells to reveal a picture. Numbers outside the grid indicate the length of blackened cell blocks in the corresponding rows and columns. If there is more than one blackened block in a certain row or column, there must be at least one empty cell between the blocks.
In the coloured version of this puzzle, there is a small difference in the rules. Blocks with different colours do not necessarily have an empty cell in between.
Invented by Tetsuya Nishio (Japan).