Candidate Master

jijidawang2

He 6MtdagICJ4FNjl4FFn4N, Hengshui, China
475 problems
solved for all time
90 problems
solved for the last year
8 problems
solved for the last month
7 days
in a row max.
3 days
in a row for the last year
2 days
in a row for the last month