How does someone get to this ELO and not know that it's impossible to checkmate with only a king and bishop?
If someone has only a king and bishop, the absolute best outcome you are playing for is a draw.
I'm in a daily game right now where I have two connected passed pawns and a king and the other guy has a bishop and king. He's successfully blocked me to the point where I know I cannot ever promote unless he literally allows me to and he is refusing to accept a draw LOL. I'm the only one at this point with winning chances of any kind and he insists on playing it out.
It's going to be so hilarious if he screws this up and I manage to promote. What an idiot.
What made him finally accept the draw?
How does someone get to this ELO and not know that it's impossible to checkmate with only a king and bishop?
The confusion arises because of the difference between FIDE and USCF rules.
Under FIDE the position in the original post would be a win for black because mate is possible (no matter how unlikely).
Under USCF the result is a draw because mate cannot be forced.