They are also known as Paint by Numbers, Color by Numbers, CrossPix, O-e-kaki logic, Nonograms, Japanese crosswords, or Picross.
Such kind of cool puzzles was invented in 1987 by Non Ishida, in Japan. Its difficulty varies from very simple to just impossible, which could amuse you for hours!
You draw the picture in accordance with the numbers to the left of the rows and on top of the columns. The picture is made up of filled squares and blank squares, and you can enjoy the picture after you solve the puzzle!
Japanese Puzzles includes powerful puzzle editor, where you can create your own color and monochrome puzzles with your own pictures. Also you can input all numbers for a puzzle from keyboard and solve it.
Japanese Puzzles includes 180(!) unique color and monochrome puzzles and a very detailed interactive tutorial!
Also the game has sharp graphics and nice music.
Game features
180(!!!) Unique Color and Monochrome Puzzles
Very detailed interactive Tutorial
Saving and Loading game
Puzzle Editor with both puzzle types
Adjustable puzzle properties
Non violent game for all ages