Problems from Northwestern Europe Contest (NWERC) 2008

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Cat vs. Dog	728	221	30%	0.00	160	110	69%	5.7
Disgruntled Judge	47	32	68%	0.00	25	22	88%	4.7
Equilibrium Mobile	236	91	39%	0.02	58	51	88%	3.9
Matchsticks	277	69	25%	0.00	85	60	71%	5.1
Proving Equivalences	470	168	36%	0.05	127	106	83%	4.8
Sculpture	6	4	67%	0.08	5	4	80%	6.7
Shuffle	69	36	52%	0.03	26	19	73%	6.8
Videopoker	5	3	60%	1.56	3	3	100%	5.2
White Water Rafting	367	141	38%	0.00	126	112	89%	3.1