I was thinking about the USCF and FIDE rules on flagging when the opponent has insufficient material. I think I came up with a scenario with the USCF-rule where the best move would be to let the clock run out. However, I'm unsure if such a position actually exists or not.
Here's the scenario (with USCF rules):
Assume white has insufficient material (KN or KB), but at the same time has a forced mate in 2 due to the placement of black's pieces. After white plays the first move in the forced sequence, black's best move (with USCF rules) would be to let the clock run out because it would be a draw.
Does such a position exist, or is it impossible?
A bit more info on the rules I am talking about (in my own words):
According to USCF rules, if a player runs out of time when the opponent has insufficient material, the game is ruled a draw.
According to FIDE rules, if a player runs out of time when the opponent has insufficient material, the game is ruled a loss as long as there exists a legal sequence of moves that leads to check mate.