September Challenge 2021 Division 3 (Rated)
Shuffling Parities, Minimize Digit Sum, 2-D Point Meeting, Airline Restrictions, Travel Pass, XOR Equal
October Challenge 2021 Division 3 (Rated)
MEX-OR, Which Mixture, Three Boxes, Digit Removal, Longest AND Subarray
November Challenge 2021 Division 3 (Rated)
Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper
December Challenge 2021 Division 3 (Rated)
Utkarsh and Placement tests
India