Rating changes for last rounds are temporarily rolled back. They will be returned soon. ×

Expert

Mark_tven

Mark Lavrinenko, Kyiv, Ukraine
From Kyiv NU
657 problems
solved for all time
0 problems
solved for the last year
0 problems
solved for the last month
11 days
in a row max.
0 days
in a row for the last year
0 days
in a row for the last month