Activity 10 days
September 26, 2012
23 solves
September 25, 2012
14 solves
September 24, 2012
15 solves
September 23, 2012
12 solves
September 22, 2012
33 solves
September 20, 2012
21 solves
September 19, 2012
30 solves
September 17, 2012
23 solves
September 16, 2012
16 solves
September 15, 2012
144 solves