September Cook-off
Digit Rotation, Hotel Bytelandia, Last Digit Sum
October Cook-off
Generalized Arithmetic Progression Free Sequence, Chef Travel Routes
November Cook-Off
Moving Coins, Subanagrams
September Challenge 2012
Kisses & Hugs, Chef World, Racing Horses, Queries About Numbers, Three is Crowd
October Challenge 2012
The New Scheme, Event Organizer, Little Elephant and Order, Fierce Battles
November Challenge 2012
Coin Flip, Sridhar Likes Travelling
April Challenge 2017
Bear and Clique Distances, Similar Dishes, Bear and Row 01, Dish Of Life, Chef and Divisor Tree, (CH) Serejs and Billiards
June Challenge 2017
Chef and Prime Queries, Saboteur (Challenge), A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
