Problems by Ragnar Groot Koerkamp

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Appeal to the Audience	258	97	38%	0.02	89	79	89%	5.0
Contest Struggles	1030	540	52%	0.00	438	418	95%	2.0
Daily Division	326	95	29%	0.03	82	63	77%	6.2
Deck Randomisation	117	21	18%	0.02	31	17	55%	8.6
Detour	1762	588	33%	0.02	407	339	83%	4.6
Disastrous Doubling	2061	587	28%	0.01	494	424	86%	4.0
Evolutionary Excerpt	198	78	39%	0.02	56	43	77%	5.0
Exchange Students	59	16	27%	0.09	21	11	52%	7.4
Harry the Hamster	100	37	37%	0.07	46	33	72%	7.0
Height Profile	444	97	22%	0.06	99	75	76%	8.1
Implementation Irregularities	283	109	39%	0.02	96	80	83%	4.7
Isomorphic Inversion	583	157	27%	0.00	128	97	76%	6.6
Janitor Troubles	3075	2158	70%	0.00	2061	1995	97%	1.4
Jazz it Up!	614	363	59%	0.00	331	308	93%	2.1
Journal Editing	215	50	23%	0.13	49	35	71%	6.4
Jumping Choreography	142	49	35%	0.90	35	27	77%	7.1
Jurassic Jigsaw	745	399	54%	0.00	319	293	92%	2.5
KALLAX Construction	148	37	25%	0.00	41	32	78%	8.1
Lucky Shirt	37	26	70%	0.02	26	25	96%	3.8