Official rule text
60.2 Players are neighbors if the adjacency of systems is granted by a wormhole.
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Source: Living Rules Reference and FAQ - Prophecy of Kings
Expansion: Prophecy of Kings
Version: 2.0
Reference: Rule 60.2
Official rule · Prophecy of Kings · Rule 60.2
60.2 Players are neighbors if the adjacency of systems is granted by a wormhole.