What's the smartest/coolest thing your AI has done?

[Rodion Romanovich]

When Egypt on very hard, very hard attacked my cavalry with one chariot unit (if I hadn't tried to kill the first chariot they'd have slaughtered me when they reached my two footmen.), and I managed to fool it into a trap, surround it and kill it. Then I realized that the AI had kept one chariot in reserve and sent it in to hit my cavalry units when it was too late for them to pull out and I hadn't fully killed the first chariot unit. The keeping of reserves like this, that only worked thanks to the boni the AI gets on vh, was quite clever but could also have been accidental. I also doubt the enemy realized that I had to kill several of their chariots before they reached my infantry line consisting of two units. Either way, I was impressed and surprised that the AI for once won a battle with only 5:1 odds for the AI.