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One of the See Also links in this article is just this: https://en.wikipedia.org/wiki/Dark_chess

In krgspl.com I implemented this as a 'reveal square' rule for any square adjacent to one of your pieces. After playtesting we settled on allowing it once per move, and it would only reveal whether the square was occupied or not, without revealing the occupant piece type.

There's a similar game concept (not based on pieces but rather on decisions to reconnoiter) called reconnaissance blind chess[1]. My understanding is that this game is largely used to explore and experiment with AI decision processes in situations with imperfect/decaying information.

[1] https://rbc.jhuapl.edu