February Challenge 2017
Chef and His Apartment Dues
June Challenge 2017
A Good Set, Xenny and Coin Rankings
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
September Cook-Off 2017
Statistics Construction, Subsequence Equality
May Challenge 2018 Division 2
Mighty Friend, Minimum Deletions, Xor Again, Dibs on Fibs
September Challenge 2018 Division 2
Bad Shuffle, Chef and Adventures, Magician versus Chef, War of XORs
Dementia (Rated for Division 2)
Strings, Chef and Replication
February Challenge 2019 Division 2
Deputy Chef, Art of Balance, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars, Manhattan Rectangle
June Challenge 2019 Division 2
Road Signs, Chef and Proxy, Guddu on a Date, Chef and Ingredients, Sum and GCD
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
India