Shortest-proof-game challenge

Here is a variation where all the pieces (officers) are in their ideal positions. Finding an SPG will also answer the question: What precisely was the only possible last move?
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Here is a variation where all the pieces (officers) are in their ideal positions. Finding an SPG will also answer the question: What precisely was the only possible last move?
The last move here is the only one possible.

@6155
And the queen triangle to lose a tempo...
Would doing it without a queen triangle win 2nd prize?
@6155
And the queen triangle to lose a tempo...
Would doing it without a queen triangle win 2nd prize?
Definitely! But that is where the buck stops as I rewarded 3rd prize to myself for finding a way to get all officers to their rightful places

Here's my first proof game try. Leither will tell us how much shorter it needs to be.

Here's my first proof game try. Leither will tell us how much shorter it needs to be.
44.0, one less bR move.