April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
May Lunchtime 2019 Division 2 (Unrated)
Dummy Palindromic Strings, CV
June Challenge 2019 Division 2
Chef and Ingredients, Sum and GCD, Guddu on a Date, Lent Money, Chef and Proxy, Road Signs
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
July Challenge 2019 Division 2
Guess the Prime!, Parity Again, Codechef War, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 1
Maximize an Expression, Dilemma, Guddu and his Mother, Encoding
September Challenge 2019 Division 1
Biladerim Icin, Fuzzy Linear Combinations, Chef Designed a Network
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, English
May Challenge 2020 Division 1
Coronavirus Spread, Isolation Centers, Chef and Bitwise Product, Triple Sort
June Challenge 2020 Division 1
Even Matrix, The Tom and Jerry Game!, Operations on a Tuple, The Delicious Cake, Convenient Airports, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
India