The percentage of the castle visited is what counts in this game. You'll be informed of that when the game is over. Just insert it into the Score field.
Important: When loading this game into a real Spectrum it always starts up with a game where you'll find Sword (Cave) / Bottle (Stable), and after that you'll find Matches (Cave) / Bow & Arrow (Stable) in the second game. In the third game you find Nothing (Cave) / Dynamite (Stable). The second and third variation then randomly comes up after that. The first version Sword/Bottle is used for Regulation play, while the other two versions are Side Competitions, to give players the chance to complete all 3 versions of this game.