I just posted a link to Board Game Geek, and the post was removed.
If you want to see an explanation of why you need to link between pegs already on the board, run a search engine on "boardgamegeek twixt link rearrangement"

Sorry, the removal was an accident. The forum mostly gets spam these days and your post got swept up.

Oh! Well in that case, here's the link again.
https://boardgamegeek.com/thread/3256495/standard-rules-another-example-link-rearrangement