Master Chen Zhonghua gave a challenge to perform 20 yilus a day from end of Nov 2014 to May 8, 2015, which amounted to 3200+ yilus in total. Congratulations to Aaron Bartholomew, Charlie Wishon and Kelvin Ho, who have successfully completed the challenge. Patrick Dickson has also completed 80% of the days despite of his injury and surgery. Thanks to all who have participated in the challenge. It has been great fun.