Most of the states look nearly identical. That would be hard spotting an imperfection in a state seal on a blue backdrop jammed into an irregular shape.
Colorado and Wyoming might not need trimming though.
Unfortunately doesnthe work for me on mobile, nearly all blue map with a tiny corner of grey land, no optin to get it all in view by zooming out or something. Tried desktop view but no improvement.
My phone might be a bit outdated though (galaxy note 4, android version 6. something)
I finished with less than a second because I had every country except Ukraine and all the countries were in alphabetical order. So the only European country alphabetically after United Kingdom is Vatican City, so I don't know why Ukraine is after United Kingdom, but luckily I typed it with less than a second.
Consider listing the answers non-alphabetically. Once you guess three or four countries most of the others can be narrowed down by guessing countries in between.
Colorado and Wyoming might not need trimming though.
My phone might be a bit outdated though (galaxy note 4, android version 6. something)