Here's Inside Moves, a completely abstract strategy game.
The point? When it comes to board games, theme matters. To me, anyway. Perhaps it's the inveterate roleplayer in me, but even chess, to me, is a story game. I imagine the king and queen have personalities, or posit the underlying problem. Why are these two kingdoms at war? It doesn't matter to the actual game play, but it matters on some level to me. It has to do with immersion - feeling at one with the game pieces, descending into the imaginary miniature conflict. Even the design of a board or playing pieces can greatly enhance the theme of a game.
here are the rules of the so-called Inside Moves, aka Chivalry and Camelot. I look forward to trying it again, this time imagining the thunder of hooves, the crack of lances on armor, and the screams of wounded warriors!