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1.Gild to donate $5 to EFF fo each coder that solves our programming puzzle (fightsopa.org)
15 points by federicof on Dec 27, 2011 | past | 10 comments
2.Not only programmers should have fun, enter sysadmin puzzles (youtube.com)
3 points by federicof on March 4, 2011 | past | 4 comments
3.Coderloop is the coder's gym
13 points by federicof on Nov 8, 2010 | past | 46 comments

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