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	10	6	60%	6.1Hard	en
Superdoku	0.00	976	343	199	58%	6.6Hard	en
Waterworld	0.01	40	145	135	93%	2.2Easy	en