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.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
Install Neverbore Picross
To install Neverbore Picross, simply use the following command: