Problems from Central Europe Regional Contest (CERC) 2013

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Bus0.0063611336593%1.7Easyen
Captain Obvious and the Rabbit-Man0.41251362672%6.3Harden
Chain & Co.0.221544271763%6.9Harden
Crane0.025851038381%5.6Harden
Digraphs0.001067886574%6.2Harden
Draughts0.0156425922486%3.5Mediumen
Escape0.331001793139%8.3Harden
Magical GCD0.2612825318473%5.5Harden
Rubik's Rectangle0.211858221255%8.2Harden
Subway0.421800351851%7.9Harden
What does the fox say?0.00705003450990%1.8Easyen