I have a dog that can jump a 6 foot wooden fence from a sit. He & I went round & round when I first got him. I had to tie him out while I went to work, too. An electric fence didn't work. One zap and he was free. I now have a wooden fence on one side of the yard and a chain link on the other. On top of the chain link, I mounted a very wobbly mesh fence. This extends the height of the fence by about 2 feet. Because it wobbles so much, he cant climb it and he doesn't even attempt to jump it because it moves. If he does try to climb it, it bends down toward the yard and he falls off.

Some type of fence is essential if you don't want to use a runner or tie out of some sort. Some dogs just won't stay in the yard without "encouragement"

Hope you find the right solution for your situation.

Mary