Problems by Yujie An

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Drawing Circles	0.18	1362	145	93	64%	8.6Hard	en
Quartets	0.00	3083	11	7	64%	6.0Hard	en
Superdoku	0.00	976	345	201	58%	6.6Hard	en
Waterworld	0.01	40	148	138	93%	2.2Easy	en