Kingdom Puzzle - Strategic King Placement Challenge!

You are presented with a grid separated into different colored zones with the objective of placing one king in each zone while following strict constraints. Not a single king can share his row or column with another, and a buffer zone surrounding each ruler must be left vacant. Correct placements allow progression through levels whereas errors decrease score. While the simplicity of the task promotes relaxation, the rigorous decision making involved demands spatial reasoning skills—every move needs to be conflict-free and configured to preserve points. Selection of squares and placement of kings can be elegantly done using mouse or touchpad.