Install 4digits by entering the following commands in the terminal:
sudo apt update sudo apt install 4digits
Description:
guess-the-number game, aka Bulls and Cows
4digits is a guess-the-number puzzle game. It's called Bulls and Cows, and in China people simply call it Guess-the-Number. The game's objective is to guess a four-digit number in 8 tries and the shortest time possible. It is similar to Mastermind, but the four digits must be unique. 4digits has both a graphical user interface version and a command-line version.
Homepage: http://fourdigits.sourceforge.net
Version: 1.1.4-1build1
Section: universe/games