June Challenge 2017
A Good Set, Xenny and Coin Rankings
November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 2
Bad Shuffle, War of XORs, Chef and Adventures, Magician versus Chef
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
September Lunchtime 2018 Division 2
Judging Delay, Opposite Cites, Chef Restaurant
June Long One 2022 Division 3 (Rated)
Subscriptions, Divisible by i , Possible GCD, Alternate Additions, Equal Strings
India