This recent match in which I won as white wasn't a very exciting game, but I'm proud nonetheless. When I ran it through chess.com's deep analysis, the computer analysis couldn't find a single mistake on either side. Actually, black's capitulation could be seen as a mistake since black had a possible continuation (Qe6) that would prevent mate. (After white's Qd8, black can bring the queen to e8, preventing the mate.) On the other hand, white should win based on the position (as far as I can tell), so maybe the black capitulation makes sense.