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Is retrospective inference NP-hard?

Here is a minimal working example of the question: Consider a network with nodes arranged in a pyramid: $1$ node in the first row, $1+d$ nodes in the second, $1+2d$ nodes in the third, and so on, ...
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Is a “stacked”, “local” version of 3-SAT NP-hard?

In this previous question, I learned that if each variable in a string $C \in 3\text{-SAT}$ appears only "locally", then finding a satisfying assignment is no longer NP-hard. My question below builds ...