Problems from Northeast North America Regional 2013

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
DVDs0.04781709144585%2.9Mediumen
Palindromes in crosswords0.151947663858%7.4Harden
Pegs0.052516311445%9.2Harden
Pipes0.001371562036%9.2Harden
Robot in a Maze0.2770520316380%5.8Harden
WordSpin0.069818714879%5.2Mediumen