[andrewl]

For a good idea of what chimpanzee musculature looks like, do a search for "hairless chimpanzee." Here's one:

https://www.bbc.com/news/uk-england-leicestershire-36924808

[sudosysgen]

I certainly agree, you wouldn't have much of a chance against a chimp one on one without weapons. It's just that the article isn't about chimps, but about much smaller macaques.