Stump and post puller. By John Gorrett.
1:43 video:
https://www.youtube.com/watch?v=j68y6rih1pw
4:09 video:
https://www.youtube.com/watch?v=pK5c7T8FafQ
Previously:
https://www.homemadetools.net/forum/...221#post184764
https://www.homemadetools.net/forum/...461#post166335
https://www.homemadetools.net/forum/...470#post162241
https://www.homemadetools.net/forum/...666#post163119