June 2010 Contest
Pricing Tollbooths, Prime Pattern
July 2010
Closest Ranking, Maximal crosses
January 2011 Challenge
Restaurant Expansion, Chess Pushing Game, Flu Shot Lineup, Splitting Giant Subs, Count Relations
The January 2011 Cook-Off
Chef team, Whole submatrix, Holes in the text
March 2011 Challenge
K-Unique Sequence, Squares Game, Omax, The Amazing All-In-One Cooking Machine - Challenge
April Long Contest
Gravel, Number Game Revisited, Central Point, Rectangles Counting
July Cook-off 2011
Misinterpretation, Pleasing Chief, Garden Squares
March Cook-Off 2012
Ciel Numbers I, Ciel Numbers II
April Challenge 2012
Stacking Pancakes, Greatest Dumpling Fight, Double Strings, Fit to Play, Parallel Computing, Lucky Array, PDS Number
June Cook-Off 2012
Closing the Tweets, Connecting Soldiers
July Cook-Off 2012
Ciel and Receipt, Ciel and Map, Ciel and Tomya
February Cook-Off 2013
Lack of Logic, Row and Column Operations, Hotel Balifornia 2
