I think it would be a bit more interesting/challenging if there was more pressure on the player. The AI is a little easy. I'd like it if multiple pieces would try to attack at once. If gold was more valuable and sparse it could lead to decisions like 'if I pick this up I'll get gold but also be hit by an enemy'. A turn timer might also help, forcing the player to think fast and try to find the most beneficial position. Overall great concept. The graphics and music are nice, and it was very enjoyable.