Problems by Yujie An

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Drawing Circles	0.18	1362	144	92	64%	8.6Hard	en
Quartets	0.00	3083	10	6	60%	6.1Hard	en
Superdoku	0.00	976	339	198	58%	6.6Hard	en
Waterworld	0.01	40	140	129	92%	2.3Easy	en