But this is not a draw!!! It's a sure win for black. As chess masters often (annoyingly) say, "The rest is just technique."
Your opponent was not wrong to resign unless he thought you would throw away the win. Perhaps he was complimenting you by resigning as he assumed that you had the skill to win. Do you think he was wrong to assume that?
(hide) If you don't want other users to know what you are doing you can change into cloak mode in Settings (paying members only). (pauloaguia) (show all tips)