/usr/share/applications/sudoku.desktop is in sudoku 1.0.5-2build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | [Desktop Entry]
Name=Sudoku
GenericName=Sudoku
Comment=console based sudoku game
Comment[de]=textbasiertes Sudokuspiel
Keywords=strategy;text;ncurses;terminal;console;game;sudoku;
Icon=sudoku
Exec=sudoku
Type=Application
Categories=Game;StrategyGame;
Terminal=true
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