How to make a redirect correctly?

Question

htaccess

There is a website on WordPress
There is a page site.ru/all-posts/
There is a page site.ru/news/ I
need to redirect from 2 to 1
I do this

Redirect 301 /news/site.io/all-posts

Everything works as it should, but if you go to the
site.io/news/drugaia-stranica page, then this redirect also works, how to fix it so that it works only for the page that I need ..

Answer 1

RedirectMatch 301 ^/news/$ http://site.io/all-posts

Or
Set above the rest of the rules.

Answer 2

It is highly desirable to read Yandex help here