how smart can a boar hog be.

I would either do one of two things ,

Let him bay up an send every dog I had to him catch dogs bay dogs all every body go get some of him ,

Or let one bay dog that has alot of bottom on him an then send an open dog that way you can feed dogs to the track. After they are baying send a all catch little terrier Patterdale jack Russell jagd something small with strong jaws that's all catch this way he will have harder time dragging it off an it can get through briars fast an if its all catch it can stay caught even if he is moving around he is still got dog attached to him then easy up on him an turn the bigger bulldogs to him
If he does shake the bigger dogs the little one should still be attached an he is not gonna just run off with a dog attached to his head or nuts

Alot of the big bulldogs run in an hit to hard an miss there bit an that's how they get slung , also them bigger dogs don't seem to have the bit strength to me ,

The open dog is to send more dogs to him if he happens to break let him bay for a long time , get him tired make him break bay an run just keep feeding a dog to him every so often an wear him out
I would only try this when it gets cold out ,