I had an idea for a type of stalemate: One side is stalemated with 8 pins in a legal position with as many pieces as possible, with all of the stalemating side’s units being “necessary.”
”Necessary” is defined as either pinning a piece, blocking a piece, or covering a king’s flight square. The king must be involved of course.
The best I came up with was 22 units. What is the optimal amount?
[FEN "b2r2q1/1R1BkR2/8/qN1K1Nq1/8/1P1N1P2/q2r2q1/2q1q1b1 w - - 0 1"]
As a bonus optional question, what is the maximum number of units in a legal position with 4 “natural” pins, which means no promoted pinning pieces?