Rainbolt is not the top GeoGuessr player in the world. That distinction is often considered to belong to a Dutch teenager who goes by GeoStique, or to a French player known as Blinky. But since around the start of this year, Rainbolt has been the standard-bearer for GeoGuessr, thanks to his captivating social media posts, shared with his 820,000 followers on TikTok as well as on other social platforms.

Appearing in a hoodie and sometimes headphones as dramatic classical music plays in the background, Rainbolt identifies countries after what appears to be simply a glance at the sky or a patch of trees.

In some videos, he guesses the correct locale after looking at a Street View image for only a tenth of a second, or in black and white, or pixelated – or all of the above. In others, he is blindfolded and guesses (correctly) off a description someone else provides him.

The videos that have generated the most shock are ones in which Rainbolt, using his topographical sleuthing, identifies exactly where music videos were filmed. In one viral clip, he found the exact street in Nevada from a video of a person driving with a capybara. “If I ever go missing, I hope someone hires this guy on my behalf,” one Twitter user commented.

GeoGuessr was created in 2013 by a Swedish software engineer, Anton Wallen, who came up with the idea while on a trek across the United States. Early influencers like GeoWizard, a British youtuber, helped promote the game. It also gained popularity during the pandemic, when it introduced a multiplayer mode called Battle Royale.

Rainbolt’s social media posts boosted it further. Last month, in a publicity coup, Rainbolt livestreamed with Ludwig Ahgren, a former Twitch personality who now broadcasts to 3 million followers on YouTube.

The GeoGuessr site has 40 million accounts, said Filip Antell, who leads content for GeoGuessr, a 25-person company in Stockholm. Some of those people are subscribers who chip in $US2 a month for the ability to play an unlimited number of games. The revenue, Antell said, goes towards paying developers and Google, which charges GeoGuessr for the use of its software.

Despite his globe-spanning knowledge, Rainbolt, who grew up in Arkansas, has never left North America. But he has plenty of places on his bucket list, including Laos and the Aleutian Islands in Alaska. People tell Rainbolt that his passion is somewhat crazy. The most common question his friends ask him is: “Is it real?”

He says it is, and promises he has never faked a video. He does get countries wrong, sometimes. Mistaking the United States for Canada, or the Czech Republic for Slovakia, are two common slip-ups for even the greatest players. And he acknowledged that he was mostly posting only his highlights on social media, rather than the occasional fumble.

So how does he do it?

The key, of course, is practice. Rainbolt fell down the GeoGuessr rabbit hole during the pandemic, watching others livestream their play and poring through study guides assembled by geography lovers.

He said he spent four to five hours each day studying: playing GeoGuessr in specific countries repeatedly to get a feel for the terrain and memorising how landmarks like road markers and telephone poles differ by country.

“Candidly, I haven’t had any social life for the past year,” he said. “But it’s worth it, because it’s so fun and I enjoy learning.”

Some of the top features that Rainbolt uses to distinguish one country from another, he said, are bollards, the posts used as barriers on the sides of roads; telephone poles; licence plates; which side of the road the cars are driving on; and soil colour.

There are other clues, if you know where to look. The quality of the image matters – Google filmed different countries using different generations of camera – as does the colour of the car being used to record the terrain. A glimpse of a white car in South America, for instance, means you are in Peru, Bolivia or Chile, Rainbolt said.

Lukas Zircher, a 24-year-old in Innsbruck, Austria, grew obsessed with GeoGuessr when he stumbled upon one of Rainbolt’s Instagram posts. Zircher decided that he, too, wanted to become one of the greats of the game.

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“It’s tough to get good, really good,” said Zircher, whose free time is now devoted to studying bollards and memorising the colour of South African soil. “I can recognise all the African countries from a few pictures, but I’m still far from being good – I miss all the eastern European countries.”

This article originally appeared in The New York Times.