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# Watch Stephen Hawking and Paul Rudd Face Off in a Game of Quantum Chess

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by 

[Samantha Grossman](https://time.com/author/samantha-grossman/)


## Samantha Grossman


Jan 27, 2016 6:14 PM UTC

by 

[Samantha Grossman](https://time.com/author/samantha-grossman/)


## Samantha Grossman


Jan 27, 2016 6:14 PM UTC

Quick, who would win in a game of quantum chess: the brilliant, world-renowned theoretical physicist [Stephen Hawking](http://time.com/4045560/stephen-hawking-quotes/), or the goofy, lovable actor [Paul Rudd](http://time.com/3957135/paul-rudd-jimmy-fallon-drinking-game/)? Check out this video, directed by Alex Winter, to see how things play out.

According to the filmmakers, quantum chess is “a version of the classic game of strategy that follows the rules of probability and uncertainty and treats each piece as a quantum particle.”

The video was made for a recent [Caltech event](https://www.caltech.edu/news/entangled-evening-quantum-science-49509) that celebrated all things quantum science. Hawking was an obvious choice for the video, but if you’re wondering why they tapped Rudd, it’s because he starred in _Ant-Man_, a film that dealt directly [with quantum physics](http://time.com/3960542/science-ant-man-film/). So, you know, he’s basically an expert too.

And if you need another reason to watch the video: it’s narrated by [Keanu Reeves](http://time.com/4066201/jimmy-kimmel-keanu-reeves-trailer-reasonable-speed/). Enjoy.

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