Problems from IDI Open 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Feast For Cats0.00362190182183%4.3Mediumen
Blackboard Numbers0.0010867156785%3.3Mediumen
Cat And Mouse0.004221911352%7.7Harden
Friday the 13th0.00652220203392%2.5Easyen
Help Roomba Find Himself0.00624906067%7.8Harden
I Hate The Number Nine0.00401752152087%2.6Easyen
NTNU Orienteering0.0368923020388%3.8Mediumen
Simon Says0.0064169362387%2.0Easyen
Smart Phone0.0012779770588%2.8Mediumen
Sneaky Snowninjas0.241426754357%7.2Harden