Problems by Jan Elffers

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Black Friday	0.00	82	5010	4456	89%	1.7Easy	en
Hay Bales	0.00	192	235	169	72%	5.3Medium	en
Mario	0.03	485	61	44	72%	7.7Hard	en
Racetrack	0.02	516	68	48	71%	7.6Hard	en