This task uses Telegram location-based chat functionality.
1. Let's google Central Park stations first. This list could be useful: https://en.wikipedia.org/wiki/Central_Park_Station . Use hint "God Save The Queen!", and pick station at Manchester, UK.
2. It is easier with Android smartphone. Find any "fake GPS" app in the store and follow instructions (something along going to Developer's settings and choosing this app as "location mock app", then choosing correct latitude and longitude in app). Go to Telegram and open "People nearby". If you set the correct coordinates, you'll find chat room of the game.