Endgame skills rule the day

Another game with a middle game change in lead and a win in the endgame. And again, sound opening principles is serving me more than memorizing openings. Especially when his 2nd move is out of my master game database. I need to focus on seeing when pieces are pulling double duty defending multiple spots because when the opponent calls out one of those defenses with a trade, I am unable to defend all the other pieces. And as always, blundering loses the game.