Picross is a logic puzzle where you must discover which grid cells are filled in and which are blank according to numbers at the side of the grid. You may know Picross puzzles as Nonograms, Griddlers, or Paint by Numbers. They are all names for the same game.
The packages for RHEL 8 and RHEL 7 are in each distribution’s respective Extra Packages for Enterprise Linux (EPEL) repository. The instructions for adding this repository diverge slightly between RHEL 8 and RHEL 7, which is why they’re listed separately below.
The EPEL repository can be added to RHEL 8 with the following command: