Problems from IDI Open 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Feast For Cats0.00362145178983%4.2Mediumen
Blackboard Numbers0.0010863953684%3.6Mediumen
Cat And Mouse0.004221911251%7.7Harden
Friday the 13th0.00652204201992%2.5Easyen
Help Roomba Find Himself0.00624896067%7.7Harden
I Hate The Number Nine0.00401740150787%2.6Easyen
NTNU Orienteering0.0368921318788%3.9Mediumen
Simon Says0.0064149360387%2.1Easyen
Smart Phone0.0012779169988%2.8Mediumen
Sneaky Snowninjas0.241504734156%7.5Harden