October Challenge 2015
Who dares to be a millionaire
March Challenge 2016
Palindromic substrings, maximize the sum
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
July Challenge 2016
Chef and Robots Competition, Chefland and Electricity, Chef and Tetris, Chef and Segments, Andrash and Stipendium
July Cook-Off 2016
Chef and Proportion, Chef and Numbers
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
June Lunchtime 2016
Collisions, One more weird game
India