Bummer, I thought the explanation about indexes was adequate... Here's the corrected version with a lot of comments, I hope it's clear now? As the master of Maps vs Territory, you have to understand the difference between the indexes and contents very well ;)
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Date: 2014-10-26 08:17 am (UTC)http://www.codeskulptor.org/#user38_OiCqu46km465Xy6.py
(you still have to work on presentation, i.e. borders between cards, but it's a minor thing)