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	271	71	26%	0.00	79	62	78%	5.0
Crane	97	52	54%	0.02	31	29	94%	4.7
Draughts	163	73	45%	0.01	61	53	87%	4.9
Escape	310	43	14%	0.72	39	11	28%	9.0
Jewel Heist	87	23	26%	0.84	26	20	77%	6.8
Rubik's Rectangle	42	9	21%	0.33	11	7	64%	7.8
The Imp	122	34	28%	0.09	34	24	71%	7.9
Wheels	360	123	34%	0.01	113	95	84%	3.8
Word Equations	107	19	18%	0.05	30	18	60%	8.5