Problems from Central Europe Regional Contest (CERC) 2013

Name Fastest Shortest Total Acc. Ratio Difficulty Languages
Bus 0.00 19 5731 3212 56% 1.6Easy en
Captain Obvious and the Rabbit-Man 0.53 492 52 19 37% 6.5Hard en
Chain & Co. 0.84 1544 58 13 22% 7.3Hard en
Crane 0.02 664 173 89 51% 5.8Hard en
Digraphs 0.00 1067 325 71 22% 7.2Hard en
Draughts 0.01 767 484 186 38% 4.2Medium en
Escape 0.72 1515 366 54 15% 8.3Hard en
Magical GCD 0.26 357 878 249 28% 5.8Hard en
Rubik's Rectangle 0.27 2183 64 15 23% 7.4Hard en
Subway 0.58 2709 103 16 16% 8.9Hard en
What does the fox say? 0.00 70 10218 4586 45% 2.4Easy en