We usually use spoiler like hints,without writing directly the final solution.In this way we don't lose completely the challenge and the satisfating when we finish a level. (@Block builder you have really a good eye)
If only you had a hint... Hahaha @meko As you can give a spoiler a title like 'hint', that custom seems a lazy agreement not in line with the universal and intuitive meaning of a spoiler. But ok, next time I'll give it a title like 'silly joke giving away the solution'
Spoiler: Hint 1 Ok,there is something hidden,you're on the right path Spoiler: Hint 2 It seems that the bridge is restless Spoiler: Hint 3 You have to move the bridge Spoiler: Hint 4 You can move the bridge with an hidden draggable Spoiler: Final Hint The house hides something....