Make some opposite coloured bishop endgames draw in antichess (If one specific player times out)

[Pablo-No]

I recently played a blitz game of antichess and I lost on time. In the final position I had only a bishop whereas my opponent had an opposite colored bishop and a pawn. I feel like this should be considered a draw, since there is no way I can take the other bishop or stalemate my opponent, so the only theoretically possible outcomes of the position is a win for me or a draw. There is an exception, if the pawn is on the b or g file, then I could block his pawn while his pawn blocks his bishop (e.g. his bishop is on a1, his pawn on b2 and I move my bishop to b1). Are there any official rules contradicting my opinion here?

Forum post
It feels right, there's no way the opponent beats you, I think there are a lot of possible problem with different colour bishops, black with at least one bishop and other pieces (also other bishops) and white with all his pieces being opposite coloured bishops (than at least one bishop of the opponent) should be draw as well if white runs out of time, because white can't take white bishop and black couldn't win. (Except some possitions where white can stalemate black)

[ddugovic]

More information: position https://lichess.org/Nrl3BS7R#66 could not be lost.

[tmmlaarhoven]

In the latter example, if black had a b-pawn instead of a d-pawn, he could be stalemated with his bishop on a1, pawn on b2, and white's bishop on b1. So figuring out if a position is winnable/losable, especially with more pieces remaining (and where only certain sequences of captures might lead to such stalemates) may be difficult to implement realistically.

If BP vs B is implemented, with a manual check to see if a stalemate is possible, what prevents others from complaining that their BPP vs B was not ruled a draw? Or a BP vs BP? You have to draw the line somewhere.

[benediktwerner]

I don't think we want to start implementing random scenarios by hand. Even in standard chess, forced draws are only recognized by material. As Thijs said, the line has to be drawn somewhere.