Moving a unit into enemy territory will give you ownership of the route along which
your unit moved. Additionally, hexes adjacent to the route may be swept along and come
under your ownership under certain conditions.
1. All adjacent hexes that do not contain an enemy unit and are not across a river are
2. If the considered hex neighbors more of your own hexes than the enemy’s it is swept
along with the following exceptions:
• hex contains an enemy ZOC
• hex is a city
• hex is an objective
3. For all hexes that are swept along, the process is repeated from step 1.
But every time I'm playing the Kuibyshev scenario, the AI uses partisans to cut my rail line. She owns the other bank, and when she takes two hexes on my side of the river, sure enough, the four hexes snap up the middle in a bowtie shape. But that middle hex only has four not-across-the-river neighbors, and the AI doesn't own a majority of them. What gives?