Problems from Northeast North America Regional 2013

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
DVDs0.04781725145985%2.8Mediumen
Palindromes in crosswords0.151947653757%7.7Harden
Pegs0.052516301447%9.1Harden
Pipes0.001371552036%9.1Harden
Robot in a Maze0.2770520316380%5.8Harden
WordSpin0.069621316577%5.3Mediumen