Problems by Lech Duraj

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Captain Obvious and the Rabbit-Man	40	15	38%	0.53	17	13	76%	7.2
Chemist's vows	263	66	25%	0.00	74	57	77%	5.1
Crane	96	51	53%	0.02	30	28	93%	4.6
Draughts	163	73	45%	0.01	61	53	87%	4.8
Escape	211	14	7%	0.72	38	10	26%	9.0
Jewel Heist	87	23	26%	0.84	26	20	77%	6.7
Rubik's Rectangle	42	9	21%	0.33	11	7	64%	7.8
The Imp	121	33	27%	0.09	33	23	70%	8.1
Wheels	338	105	31%	0.01	102	84	82%	4.3
Word Equations	103	19	18%	0.05	29	18	62%	8.2