Problems by Yujie An

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Drawing Circles	0.18	1362	147	96	65%	8.5Hard	en
Quartets	0.00	3083	13	9	69%	6.3Hard	en
Superdoku	0.00	976	348	204	59%	6.5Hard	en
Waterworld	0.01	40	154	144	94%	2.1Easy	en