January Challenge 2013
Dividing Products, Little Elephant and Alcohol, Three Different Numbers, Chef of the Year, End Of The World, The Minimum Number Of Moves, Hotel Balifornia
February 2013 Challenge
Little Elephant and Cards, Buy1-Get1, Magic Board, Climbing Stairs
March Challenge 2013
Random decreasing function, Tourist Translations, Approximately, Fire Escape Routes
July Challenge 2014
Dish Owner, Reach The Point, Count Substrings, Garden Game, Chef and Frogs
December Lunchtime 2017
Days in Month, Strange Function
January Challenge 2018
String Merging, Partition the numbers, Rectangle, Maximum Score, K-Concatenation, (Challenge) Chef and Palindromes
January Lunchtime 2018
Chef and Game with Sequence, Chef and Escaping from the Labyrinth
February Challenge 2018
Broken Clock, Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
