Hello, it's not so easy to create a Challenge Cache since 2015! Now I found this forum and I hope, there is somebody who can help me to create a challenge-checker.. The challenge should be: To find caches in 15 countries (States), listed in the official maps of geocaching.com. Specified challenges to log are: - minimal founds in 15 several countries - of which results should be inby worldwild - ARCHIVE Checker requests (completed)