Today did my daily GZ run, when I came to two boulders who had a narrow gap between them where I just could fit through. I thought what if I look for more examples of two items each of the same category that also have a narrow gap where I could just pass through. So no gaps that are much wider.
I soon found four examples.
Now if you want to play this game, find other examples and post the picture, with the rule that the two items should be in everybody’s game, so no manipulation of any kind. And there should be only two items of the same category on the picture. Also add the coordinates of where you took the picture, so others can check. 
The game is afoot! 
Good one Kees.
