Many network filters block "geoguessr.com" but do not block Google Maps or specific embedded map services. Sometimes, using a direct link to a specific challenge rather than the main homepage bypasses basic filters. Try sharing a private challenge link from a friend to see if the firewall only blocks the root domain.
: A highly popular free alternative available on gaming portals like CrazyGames , which can sometimes bypass specific site blocks. Hide & Seek World unblocked geoguessr
Most players try a few standard tricks: