The game is very much like chess. There are pieces on a board with movement and abilities. You can use your pieces to defeat the other pieces, or you can be defeated in turn.

The problem isn't the analogy of chess to bg3. The problem is the AI in bg3. If the AI in bg3 could learn and adapt to the players tactics then it would become one of the greatest tactical games in the modern era.

Unfortunately, the AI is static.