Cool to see the Tafl games in this article! Being part Welsh, I've researched and (tried to) played "tawlbwrdd" with a printed paper board and a few coins. I'm thinking about turning a maple tree (and a bit of black walnut) that we had cut down into heirloom games for my kids (they used to climb in those trees).
http://tafl.cyningstan.com/page/172/tawlbwrdd