July Cook-Off 2018 Division 2
Encoding Message, OR Matrix
December Challenge 2018 Division 1
Max and Electrical Panel, Chef and Interactive XOR
November Challenge 2018 Division 2
Chef and Difficult Contests, Chef and Happiness, Magician versus Chef 2, Good Median, Appy Loves One, Chef and Ridges
October Challenge 2018 Division 2
Minimize Digitsum, Chef and Serves, Byte to Bit, Chef and Circles
September Lunchtime 2018 Division 2
Judging Delay, Chef Restaurant
December Lunchtime 2018 Division 1
Age Calculator, Choosing from Buckets
January Challenge 2019 Division 1
Different Neighbours, Distinct Pairs, A Pizza Slice
June Challenge 2019 Division 1
Lent Money, Chef and Ingredients, Sum and GCD
December Lunchtime 2019 Division 1
The Evil Professor, Guess the number
December Challenge 2019 Division 1
Chefina and Ranges, Addition, Sticky Notes, Binary XOR
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Chefina and Prefix Suffix Sums, English
March Cook-Off 2020 Division 1
Mysterious Sequence, Maximize Letter Beauty
Azerbaijan