What is the longest known stalemate your opponent in X moves problem where the stalemate is a fastest draw from a drawn position? I.e. a win is not possible but stalemating your opponent so they can't move is and any other draw takes at least as many moves. Here is an example of a fastest draw stalemate your opponent in 2 moves problem. The pawn is on h6 with black to move.
[FEN "5k1K/8/7P/8/8/7b/8/8 b - - 0 1"] 1... Bf5 2. h7 Kf7.
Another example with the white king on e1 and white to move:
[FEN "8/ppp1p3/4p3/4p3/8/8/1pp5/brk1K3 w - - 0 1"]
Can anyone find a longer fastest draw stalemate your opponent in x moves problem than the 35-move one below?