Problems by Piotr Rudnicki

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A Flea on a Chessboard	295	66	22%	0.01	80	59	74%	5.0
Antiarithmetic?	1178	221	19%	0.01	282	160	57%	7.2
Ants	3149	1390	44%	0.00	1112	975	88%	2.6
Bachet's Game	1889	1027	54%	0.08	690	641	93%	2.1
Basic Remains	366	159	43%	0.02	141	124	88%	3.7
Brownie Points I	236	136	58%	0.02	121	110	91%	2.4
Brownie Points II	30	6	20%	0.11	8	4	50%	7.3
Closest Sums	3438	1333	39%	0.00	1075	939	87%	3.1
Cutting a polygon	241	42	17%	0.00	45	29	64%	7.7
Ferry Loading IV	2427	752	31%	0.00	767	565	74%	3.3
Grid Speed	15	3	20%	0.04	5	3	60%	6.6
How many 0's?	847	373	44%	0.00	333	255	77%	4.0
Knights in Fen	1676	605	36%	0.00	303	260	86%	3.0
Magic Bitstrings	85	34	40%	0.00	37	31	84%	4.8
Marbles On A Tree	915	350	38%	0.00	252	225	89%	3.0
Persistent Numbers	504	216	43%	0.02	173	141	82%	3.9
Rectilinear Polygon	43	15	35%	0.01	17	13	76%	6.4
Three Powers	1740	846	49%	0.00	686	632	92%	2.6
Tri Tiling	1116	508	46%	0.00	411	382	93%	2.1
Watering Grass	2039	419	21%	0.02	348	258	74%	5.9