Problems by Jan Elffers

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Black Friday	0.00	82	4710	4165	88%	1.9Easy	en
Hay Bales	0.00	192	233	169	73%	5.3Medium	en
Mario	0.03	485	58	42	72%	7.2Hard	en
Racetrack	0.02	516	64	46	72%	6.0Hard	en