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Diplomacy 2 is the 11th of the 24 Puzzles in Subterfuge.
Ensure your ally keeps Kyburz.
Any player may fund any other player, as long as they have at least 20 kilos of Neptunium more than that player. Funding another player boosts their electrical output and their production rate. You can provide and withdraw funding from the Intelligence Reports panel (Middle button at the at the bottom of the screen.)
In the Funding column in the intelligence Report panel you will see buttons on the rows of the players you can fund. Tapping those buttons with toggle funding.
To see the solution click Expand below.