Japanese Mosaic Puzzles - Version 1.0 JMPuzzles is a type of very addictive puzzles. 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! Such cool puzzles are also known as Paint By Numbers, CrossPix, Nonograms.