Last year, we brought you information on Chen San Yuan, a 70 year old retiree living in Taiwan who spends his time playing Pokemon GO on multiple smartphones.

Mr. Chen has continued to play Pokemon GO and takes down gyms with 21 smartphones rigged to his bicycle. What we have never shown you, though, is how the Pokemon master plays with 21 smartphones.

Check out the video below to see it for yourself (please disable privacy settings on your web browser if you cannot see it):

As you can tell, Mr. Chen uses all 10 fingers of both of his hands to attack the Pokemon on 10 different smartphones simultaneously. And just by doing that, he has swiftly taken down a gym without the help of anyone else.

What do you think? Let us know in the comments!

Thanks, Yoyu.