Problems from IDI Open 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Feast For Cats0.00362159179983%4.2Mediumen
Blackboard Numbers0.0010866356084%3.3Mediumen
Cat And Mouse0.004221911251%7.7Harden
Friday the 13th0.00652206202192%2.5Easyen
Help Roomba Find Himself0.00624896067%7.7Harden
I Hate The Number Nine0.00401741150987%2.6Easyen
NTNU Orienteering0.0368921318788%3.9Mediumen
Simon Says0.0064152360687%2.1Easyen
Smart Phone0.0012779270088%2.8Mediumen
Sneaky Snowninjas0.241426744257%7.2Harden