Problems from IDI Open 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Feast For Cats0.00362100175884%3.9Mediumen
Blackboard Numbers0.0010863653384%3.7Mediumen
Cat And Mouse0.004221811251%7.7Harden
Friday the 13th0.00652184200792%2.4Easyen
Help Roomba Find Himself0.00624906168%7.7Harden
I Hate The Number Nine0.00401709148287%2.7Easyen
NTNU Orienteering0.0368921418888%3.9Mediumen
Simon Says0.0064133359087%2.1Easyen
Smart Phone0.0012778269088%2.9Mediumen
Sneaky Snowninjas0.241504704057%7.3Harden