Draw borders between realms with a named zone where both have a claim

A sharp line halfway between two capitals makes the stronger realm look weak and gives no room for a border war. Here is how to let strength pull the line toward the weaker side, mark the cells too close to call, and keep the result the same however the cells are visited.

Why this works

Real borders sit where one power's reach runs out, so the stronger side pushes the line toward the weaker. Where two powers are nearly equal, neither wins clearly, and that doubt is the contested ground players expect to fight over.

When not to use it

Skip it when borders follow rivers, mountains or old treaties rather than strength. Then the land itself draws the line, and a strength formula would cut across it. Trace the real feature and add the doubtful strip by hand.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 3 common mistakes and the fix
• A diagram of every state
• 17 lines of example code with 4 checks that pass
• How your AI shows you that it works

Say this to your AI

Use the Spielerando entry "Draw borders between realms with a named zone where both have a claim" (read_entry contested-border-zone-between-two-realms) in my game. Build it step by step, and show me how you checked that it works.

Or skip this and connect the MCP: your AI then finds all of this by itself.Connect the MCP