January Challenge 2019 Division 2
Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, A Pizza Slice
February Challenge 2019 Division 2
Deputy Chef, Art of Balance, (Challenge) Chef with Orchestra in the Kitchen, Appy and Contest, Chef and Magical Jars, Guess It Right, Manhattan Rectangle, Chef and Secret Ingredients
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
June Challenge 2019 Division 2
Sum and GCD, Chef and Ingredients, Guddu on a Date, Chef and Proxy, Road Signs
July Challenge 2019 Division 2
Guess the Prime!, Parity Again, Minimum and Maximum, Chef and Mean
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Leaked Answers (Challenge)
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