Problems from IDI Open 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A Feast For Cats0.00362247186683%4.1Mediumen
Blackboard Numbers0.0010867557285%3.2Mediumen
Cat And Mouse0.004221911352%7.6Harden
Friday the 13th0.00652231204592%2.4Easyen
Help Roomba Find Himself0.00624906067%7.8Harden
I Hate The Number Nine0.00401778154487%2.6Easyen
NTNU Orienteering0.0368924421789%3.7Mediumen
Simon Says0.0064180363387%2.0Easyen
Smart Phone0.0012780070888%2.7Easyen
Sneaky Snowninjas0.241426764559%6.7Harden