Problems from KTH Challenge 2013

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Bank Queue	16910	4942	29%	0.00	4155	3451	83%	3.5
Car Game	2593	739	28%	0.10	510	336	66%	5.7
Chicken Joggers	720	145	20%	0.01	128	104	81%	5.7
Flag Quiz	1270	462	36%	0.00	429	370	86%	3.7
FreeCell	112	48	43%	0.00	56	43	77%	6.0
Hogwarts	27	13	48%	0.00	14	10	71%	6.0
Peragrams	8353	4011	48%	0.00	2824	2676	95%	1.7
Vacuum Tubes	290	84	29%	0.00	82	63	77%	6.0