Problems from Northeast North America Regional 2013

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
DVDs0.04781726146085%2.8Mediumen
Palindromes in crosswords0.151947653757%7.7Harden
Pegs0.052516311445%9.1Harden
Pipes0.001371552036%9.1Harden
Robot in a Maze0.2770520516580%5.7Harden
WordSpin0.069621516677%5.3Mediumen