I'm curious. concentric squares ?
Concentric Squares Micro Drill Question

The idea of concentric squares is to take the enemy king on d5 and sequentially move a minor piece around the board to get familiar with forking points.
i have found it easier to imagine the king with lines coming out crosswise and diagonally as I have drawn and then your piece like a rook has diagonal lines coming out of it. And where the lines intersect, that’s where to place your queen
I missed the Q I should have placed on d3. This method is also good to make sure you didn't miss any spots

You do it with Q v R then Qv B in which you have the same lines out of the king and instead of the diagonal lines like the rook has you visualize up and down and left to right lines from the B and where those lines intersect the king lines is a forking point for the B. Then you do the same for Q v N and Q v Q. Main idea is to be able to quickly jump and see fork points quickly since end games will be short on time usually
For those who know what I am talking about, do we assume that it’s white’s move after you place your Queen or that it’s Black’s move.
With it being white’s turn when you place your Queen you can capture the rook etc... more often than if it was black’s turn to move where the king can now move next to the rook (unless it’s more than 2 squares from the king). This makes a big difference in the number of safe squares to capture the rook