Each report released in 2015 will contain a riddle. First one to get me the correct solution wins. Participants are encouraged to use the reply-to-all function to send their response to the mailing list, not just to me!
IS-BR for each weekly winner. 5th win = upgrade to IS-SR, 10th win = upgrade to IS-GR and 25th win = upgrade to IS-PR.
Competition runtime starts on the first day at 00:00:01 UTC, and ends on the last day at 23:59:59 UTC.