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Nitrogenium 2013

Start date: Dec. 13, 2013, 4 p.m. UTC Solution: HERE
Count the number of islands on consecutive days.

Stats:

3776 started 916 silver awards 223 golden awards

Hall of fame:

1
Robin Lee
Time: 12 minutes
2
Marcin Kościelnicki
Time: 14 minutes
3
Marat Yuldashev
Time: 21 minutes