I say Black Knight because in the picture by Maurians hand looks like 2 captured knights. Also, none of the games I have found are shorter than this game. It's the most logical conclusion in my mind, when seeing the caliber of moves he was making, during the era in which he lived. But I would accept an email from Silman. I'm startled to see that all mention of his problems with mental illness have been completely removed from the article. Oct 17, Paul Morphy From Wikipedia, Morphy esteemed chess only as an amateur about chess causing madness.
Chess Genius Paul Morphy vs. Amateur - Evans Gambit
No personal attacks against other members. Upon returning to America, he announced his retirement from chess. Tartajubow On Chess II. Some consider it weak. No spamming, advertising, or duplicating posts. Upon returning to America, he announced his retirement from chess.
Het focused on the Polgar line which, instead of Rhe1, chose Qd3. The way you have incorporated the Silman text into the article, you are putting words in Fischer's mouth, that he never spoke, that he never said. Board, Card Games and Puzzles under construction. But even top grandmasters can lose quickly if they do not develop their pieces. Here's a link  giving some details from primary sources. His mental state in his later years is a famous or notorious aspect of Morphy that any serious biography of him that treats anything beyond his chess games needs to mention. This YouTube channel is a great place for beginner and intermediate players to watch MatoJelic.