Enchant the Undefended
Story
The battlefield is littered with fallen chesspersons. Opposing forces clash, blinded by mutual hatred and pricked on by a thirst for blood. There is however a chance for peace. Find the chesspersons who are most vulnerable and pacify them to quell the cycle of violence.
Rules
Click undefended pieces. A piece is considered undefended if there are no allies who have sight on its square.