In the days of the Wild West, horses were the only means of transportation in America. At the time, cowboys had to do their best to prevent their horses from being stolen. It is said that a cowboy had the idea of arranging the horseshoes in such a way as to form a padlock. If this legend is to be believed, this is how this puzzle was born. Don't just use your head, you will have to fight to solve this puzzle. The key word is "horses".