Isn't the continuation proposed by Stockfish after 60's move winning (or at least draw) for black? 67... f1=Q+ taking the bishop, ending a pawn up
I guess it goes like ..f1=Q+ Kh1 Qxb5 Qh8+ and black's rook is eventually forked, like Ke6 Qxh3+ with fork next move.
Possible, but after Qxh3+ you can go to Kd5 and there is no fork next move since fork-squares are covered by queen.
yah, I guess the best try is Qxh3+ Kd5 Rd1+ Kc5 Qe3+ and something drops next move