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Posted on January 13, 2016 Defective Circuit Board Puzzle I have ten circuit boards, and I know exactly two are bad. | Posted on December 03, 2014 Impossible escape? Can you use math to escape from, what seems like, an impossible prison escape problem based on coins and a chessboard? | Posted on September 01, 2014 Lowest Discrete Auction Game Can you guess the lowest distinct number out of a group of people? | Posted on January 04, 2016 Koch Snowflake Generating snowflakes using recursion. |