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

Expert

dened

Denis Nedelyaev, London, United Kingdom
Only public activity
368 problems
solved for all time
0 problems
solved for the last year
0 problems
solved for the last month
9 days
in a row max.
0 days
in a row for the last year
0 days
in a row for the last month