Activity 10 days
September 20, 2012
8 solves
September 19, 2012
19 solves
September 18, 2012
17 solves
September 17, 2012
10 solves
September 16, 2012
16 solves
September 15, 2012
65 solves
September 14, 2012
6 solves
September 13, 2012
14 solves
September 12, 2012
10 solves
September 11, 2012
15 solves