May Challenge 2018 Division 2
Minimum Deletions, Xor Again, Mighty Friend
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit, Chef and Surprise Chessboard, Minimize Digitsum
March Lunchtime 2019 Division 2
Corrupted Seven-Segment Display, Testing Robot, Pogo Stick Competition
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
May Lunchtime 2019 Division 2 (Unrated)
Dummy Palindromic Strings, CV
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
March Cook-Off 2020 Division 2
Mysterious Sequence, Find Your Gift, Box of Chocolates
March Lunchtime 2020 Division 2 (Unrated)
Chef Swaps Digits, Good Prefix
April Lunchtime 2020 Division 2
Another Birthday Present!, Chef in Fantasy League
January Cook-Off 2021 Division 2
Prime Tuples, Maximise Islands
January Lunchtime 2021 Division 2 (Unrated)
Binary Subsequence, Even Differences, Even Sum
February Lunchtime 2021 Division 2
Palpal Strings, Coprime Range
India