Турнир "ФБ-6" -> Tournament "The Final Battle - 6"

Checked the save. It doesn't seem too bad; there's a noticeable loss of momentum in the early game, but it only takes about a day to fix the overall build. And it's not even certain that upgrading the harpies is a bad move.
He probably gave up out of frustration, because it's not certain that his opponent has a better position. And worse situations have been salvaged; it was worth fighting for.