I was strategically lost after a few moves, but my young opponent could not find the knockout blow. Rather, we reached a minor piece ending in which my two knights may have offered better chances than his knight and bishop. After I turned down his offer of a draw, he built a fortress.
Black to move
I spent about six minutes in this position contemplating 43...Nxa3. Would a sacrifice of a knight for two pawns destroy my opponent's fortress and give me the edge. I was not certain and opted for 43...Nb2 instead.
I let this knight become trapped in order to liquidate White's kingside pawns. After trading my other knight for his knight and removing his last pawn except for the useless a-pawn (the bishop operates on the wrong color squares), we agreed to a draw.