Problems by Derek Kisman

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
A Recurring Problem	1.59	3042	10	9	90%	8.6Hard	en
Three Kinds of Dice	0.04	1410	18	17	94%	4.9Medium	en
Zoo Management	0.36	2513	11	10	91%	7.1Hard	en