/challenges-projects/design-challenges/sudden-impact/b/blog/posts/blog-summary-004-sudden-impact-challenge-2014The Sudden Impact Challenge is running from December 1 to May 8th 2015. Previous Activity: Blog Summary #000 : Sudden Impact Challenge 2014 Blog Summary #001 : Sudden Impact Challenge 2014 Blog Summary #002 : Sudden Impact Challenge 2014 Blog Summaryen-USTelligent Community 12