Source google image: https://news-cdn.softpedia.com/images/fitted/340×180/This-Google-Maps-Mercator-Puzzle-Isn-t-Just-for-Cartography-Fans-but-It-s-Harder-than-It-Looks.jpg
Mercator puzzle
Source google image: https://news-cdn.softpedia.com/images/fitted/340×180/This-Google-Maps-Mercator-Puzzle-Isn-t-Just-for-Cartography-Fans-but-It-s-Harder-than-It-Looks.jpg