This was originally published on the cover tape of Load'n'Run, no. 34, January 1987, article on p. 5. Solution published in Load'n'Run, no. 38, May 1987, p. 4.
Although the loading screen states "by George and Peter Carmpouloni", that's a reference to the fact that the image was "taken" from the Carmpouloni's game Time Sanctuary.
The game itself is credited to G.P. Gentili in the magazine.
[+] Users who have solved this game
[+] Users currently playing this game