Treacherous knight
qe3+, kg6,qxc3 and you're up a bishop.
Qf4+, kg6, Qg5+, kf7, Qg7+,ke6,qe7+,kf5,qd6 and you shoukd be able to promote.
(If it was white's turn)
Mateo O'Staleen saw this and said: "This is socialism, white, black all equal to the Creator... ohhh darn... well... in our belief there is no creator, nevertheless, still we are all equal NOT to the Creator, some are more equal that's all...Now take your board and go to the gulag, ... & since we are comrades of nations... I have reserved you the accommodations... wuhahhaaaa "
Mateo O'Staleen saw this and said: "... wuhahhaaaa "
Sorry for my dark "Stalin" humor.
qe3+, kg6,qxc3 and you're up a bishop.
Qf4+, kg6, Qg5+, kf7, Qg7+,ke6,qe7+,kf5,qd6 and you shoukd be able to promote.
(If it was white's turn)
Actually it's Black's turn as stated in the dialogue.
"«Playing as Black, this is where I resigned, on my turn to move."
qe3+, kg6,qxc3 and you're up a bishop.
Qf4+, kg6, Qg5+, kf7, Qg7+,ke6,qe7+,kf5,qd6 and you shoukd be able to promote.
(If it was white's turn)
Actually it's Black's turn as stated in the dialogue.
"«Playing as Black, this is where I resigned, on my turn to move."
I know, that's why I made the last line.