Problems by Piotr Rudnicki

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A Flea on a Chessboard	481	107	22%	0.01	119	87	73%	5.4
Antiarithmetic?	1572	288	18%	0.01	353	205	58%	7.2
Ants	3794	1684	44%	0.00	1361	1192	88%	2.5
Bachet's Game	2356	1231	52%	0.08	806	747	93%	2.1
Basic Remains	554	241	44%	0.01	210	186	89%	3.6
Brownie Points I	345	197	57%	0.02	177	162	92%	2.3
Brownie Points II	40	8	20%	0.11	11	5	45%	8.0
Closest Sums	4435	1646	37%	0.00	1333	1164	87%	2.9
Cutting a polygon	294	43	15%	0.00	53	30	57%	8.5
Ferry Loading IV	3074	935	30%	0.00	974	717	74%	3.5
Grid Speed	15	3	20%	0.04	5	3	60%	6.6
How many 0's?	928	407	44%	0.00	372	280	75%	4.2
Knights in Fen	2000	699	35%	0.00	375	322	86%	3.2
Magic Bitstrings	103	46	45%	0.00	41	35	85%	4.1
Marbles On A Tree	1170	456	39%	0.00	309	277	90%	3.0
Persistent Numbers	608	261	43%	0.02	202	167	83%	3.8
Rectilinear Polygon	45	17	38%	0.01	19	15	79%	5.5
Three Powers	1988	955	48%	0.00	790	728	92%	2.5
Tri Tiling	1442	644	45%	0.00	532	496	93%	2.1
Watering Grass	2539	572	23%	0.02	440	340	77%	5.3