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Grandmaster

operator_

JQH-Rating-verify 3xPiGoZ5EeScXCkRIWgG, Hangzhou, China
826 problems
solved for all time
77 problems
solved for the last year
6 problems
solved for the last month
11 days
in a row max.
5 days
in a row for the last year
1 day
in a row for the last month