February 2011 Contest
Coloring Colorable Graphs
April Long Contest
Gravel, Number Game Revisited
July 2011 Long Contest
Large Kitchen, Most Popular Friend
October Cook-off
Generalized Arithmetic Progression Free Sequence, Chef Travel Routes
March 2012 Challenge
Free Shuttle Service, Xor it, Spoon in Matrix, Home Delivery, Lucky Number, Cosine Partition Function, Longest Weird Subsequence, Tom And Jerry
April Challenge 2012
Parallel Computing, Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight, Similar Graphs
May Challenge 2012
Remember the recipe, A Home for Chef, Divisible Pairs, Jewels and Stones, Little Elephant and Median, Killing Gs, Lucky lucky number
May Cook-Off 2012
Little Elephant and Strings
June Challenge 2012
Closest Points, Polynomial Partition Function, Little Elephant and Product, Little Elephant and Candies, Doom Bakes Cakes, Arranging Cup-cakes
November Challenge 2012
Coin Flip, Sridhar Likes Travelling, Delicious Dishes, Lucky Balance, Candy Collecting Game
July Challenge 2018 Division 2
Reach Equilibrium, Magic Set, Strike or Spare, No Strings Attached
February Challenge 2019 Division 2
Manhattan Rectangle, Deputy Chef, Art of Balance, (Challenge) Chef with Orchestra in the Kitchen, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
