Stockfish level 6 doesn't know how to checkmate with a queen against a b-pawn

I guess on level 6 its horizon is restricted...
Probably why it struggles...from the moment the white pawn queens it is a win in 8 moves (or 16 ply).

> And, by the way, @Akbar2thegreat ur URL is wrong. It should have been stockfishchess.org/
Ah yes, I meant that only, it was case of mistake.

And if Lichess could support analysis by different version of the engine (Stockfish) then too I could get you the desired outcome by pointing out the difference.

Level 1 Is the smartest