Problems from IDI Open 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Feast For Cats0.00362093175484%3.9Mediumen
Blackboard Numbers0.0010863653384%3.7Mediumen
Cat And Mouse0.004221811352%7.7Harden
Friday the 13th0.00652183200792%2.3Easyen
Help Roomba Find Himself0.00624906168%7.5Harden
I Hate The Number Nine0.00401688146287%2.7Easyen
NTNU Orienteering0.0368921418888%3.9Mediumen
Simon Says0.00234119357887%2.1Easyen
Smart Phone0.0012777668588%2.9Mediumen
Sneaky Snowninjas0.241504704057%7.0Harden