July Cook-Off 2018 Division 2
Encoding Message, OR Matrix
August Cook-Off 2018 Division 2
Mixi Game, Balsa For The Three
October Mega Cook-Off 2018 Division 2
Binary Nim 2, Ada and the Staircase
June Challenge 2018 Division 2
Binary Shuffle, Naive Chef
July Challenge 2018 Division 2
Magic Set, Strike or Spare
August Challenge 2018 Division 2
Problem Sort, Spell Bob, Sheokand and Number, Modular GCD
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Condition Zero (Challenge), Chef and Adventures, Bad Shuffle
December Challenge 2018 Division 1
Max and Electrical Panel, Chef and Interactive XOR
November Challenge 2018 Division 1
Chef and Ridges, Chef, Primes and Trees (Challenge), Appy Loves One
October Challenge 2018 Division 2
Appy and Balloons , Minimize Digitsum, Chef and Serves, Byte to Bit, Chef and Circles
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
February Challenge 2019 Division 1
Art of Balance, Chef and Secret Ingredients
February Cook-Off 2019 Division 2
Max Range Queries, Chef and Secret Password, Buying New Tablet, Chef and Party
October Lunchtime 2019 Division 2
Khaled in HIT, Box Game, Counting Inversions Revisited
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Chefina and Prefix Suffix Sums
India