September Lunchtime 2017
Chef and Cook-Off Contests
January Lunchtime 2018
Chef and Game with Sequence
February Challenge 2018
Chef And His Characters, Chef And The Patents
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove
March Cook-off 2018 Division 2
Chef Judges a Competition
August Challenge 2018 Division 2
Problem Sort, Sheokand and Number
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests
January Challenge 2019 Division 2
Lucky Number Game, Fancy Quotes
February Challenge 2019 Division 2
Deputy Chef, Art of Balance, Chef and Secret Ingredients, Chef and Magical Jars, Appy and Contest
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit
March Cook-Off 2019 Division 2
XOR N-bonacci Sequence, UEFA Champions League
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Subtree Removal, Fencing
July Challenge 2019 Division 2
Parity Again, Chef and Mean , Minimum and Maximum
February Challenge 2020 Division 2
No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps
February Lunchtime 2021 Division 2
Palpal Strings, Coprime Range
April Challenge 2021 Division 3
Chef and Dice, Valid Pair, World Record, Strong Language
India