Tovariщ
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The guy plays pretty well, he just has a habit of giving up at the first sign of trouble. (In a game against me, he had 10 angels, took a Utopian city without getting good artifacts, and gave up). I've noticed this happening more than once. At least for the sake of the tournament, he could have continued. He did kill the opponent's main city. Anyway, it's a matter of mentality.
Time is money. On the next turn, they might have attacked the main city with a single Mosha unit.