I cannot find the rules or graphics for the caveman. Can you help with that?
Bulldog chess with Wild Goat and Rock and caveman rychessmaster1 - thegreatauk

Thanks, forget my dreadful rule description for the caveman: The rules for the "Caveman": The Caveman can only capture the Wild Goat but can get up a rock. The Caveman moves like a king, and can't be taken by by a queen or king because he smells so bad neither royalty wants to go near him.
also here are the graphics:

We could swap the white Bishop on d1 and black Bishop on g8 for a Caveman, and bring back the Queen. That should be interesting.
General rules for this game:
https://www.chess.com/clubs/forum/view/rules-for-bulldog-chess-with-witch
Rules for pieces:
Wild goat and Rock
https://www.chess.com/forum/view/chess960-chess-variants/letrsquos-invent-some-very-weird-pieces?page=18#comment-38265824
The Rock moves like a King. The Rock cannot capture nor can it get captured.
The Wild Goat moves and captures like a Knight. As only piece, the Wild Goat can move on top of a friendly or enemy Rock.
A Rock cannot be moved when a Wild Goat stands on it.
As long as the Wild Goat stands on a Rock it cannot be captured, unless by another Wild Goat coming from another Rock.
rychessmaster1 plays with White, I will moderate. The game is unrated. Enjoy!