Problems by Zachary Friggstad

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Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
All Colourings	0.06	887	52	34	65%	7.1Hard	en
Always Know Where Your Towel Is	0.55	489	144	63	44%	7.8Hard	en
Antimatter Rain	0.17	1393	137	87	64%	7.4Hard	en
Attendance	0.00	61	899	825	92%	1.7Easy	en
Balls and Bins	0.01	273	92	72	78%	5.5Hard	en
Big And	0.08	130	208	164	79%	4.9Medium	en
Birthday Candles	0.00	94	252	222	88%	3.2Medium	en
Bombardment	0.12	230	161	120	75%	4.5Medium	en
Braaaains	0.03	430	71	48	68%	6.2Hard	en
Buildin' Roads	0.09	969	27	21	78%	5.9Hard	en
Bumper-To-Bumper Traffic	0.01	195	466	383	82%	3.7Medium	en
Bundles of Joy	0.00	545	259	184	71%	6.3Hard	en
Candy Store	0.00	91	1053	996	95%	1.5Easy	en
Central String	0.03	441	44	23	52%	7.4Hard	en
Clumsy Cardinals	0.04	369	74	58	78%	5.7Hard	en
Color Tubes	0.00	897	123	89	72%	7.1Hard	en
Corporate Retreat	0.03	1846	34	25	74%	7.0Hard	en
Cubic Cycle	0.01	737	54	30	56%	7.7Hard	en
Decisions, Decisions	0.00	126	320	286	89%	2.9Medium	en
Delivering Goods	0.02	1137	204	150	74%	5.9Hard	en
Dinner Time	0.00	162	145	120	83%	3.8Medium	en
Finding An A	0.00	6	9860	9463	96%	1.3Easy	en
Flipping Cards	0.02	220	532	359	67%	6.3Hard	en
Flow Shop	0.01	150	1459	1339	92%	2.0Easy	en
Folding a Cube	0.00	323	282	195	69%	5.9Hard	en
Frosh Week	0.01	69	2109	1969	93%	1.6Easy	en
GCVWR	0.00	27	3946	3814	97%	1.4Easy	en
Greedy Increasing Subsequences	0.03	186	142	112	79%	5.5Hard	en
H-Index	0.00	56	2496	2042	82%	3.6Medium	en
Handheld Fan	0.00	88	160	152	95%	2.3Easy	en
Hired Help	0.01	341	178	124	70%	5.6Hard	en
Hissing Microphone	0.00	23	19491	18753	96%	1.2Easy	en
Hockey Fans	0.03	298	80	63	79%	4.8Medium	en
I've Been Everywhere, Man	0.00	34	15418	14774	96%	1.4Easy	en
Interview Queue	0.02	745	409	236	58%	7.5Hard	en
Island Exploration	0.00	275	161	152	94%	2.3Easy	en
Keys, Phone, Wallet	0.00	54	2127	2029	95%	1.5Easy	en
Lefties vs. Righties	0.00	217	112	83	74%	5.5Hard	en
Lines of X	0.00	305	83	66	80%	4.2Medium	en
Loot Chest	0.00	109	126	110	87%	3.6Medium	en
Matrix Keypad	0.00	557	376	315	84%	3.5Medium	en
Maximal Sequences	0.02	534	319	216	68%	6.4Hard	en
Monitoring Ski Paths	0.02	573	262	172	66%	6.7Hard	en
Musical Scales	0.00	122	1646	1558	95%	1.6Easy	en
Ordinary Ordinals	0.00	49	249	191	77%	4.8Medium	en
Paper Snowflakes	0.02	508	129	99	77%	6.0Hard	en
Pawn Shop	0.03	119	333	278	83%	3.5Medium	en
Pegs and Legs	0.01	416	150	130	87%	3.6Medium	en
Pencil Crayons	0.00	40	744	700	94%	1.5Easy	en
Perfect Path Patrol	0.04	162	232	189	81%	5.8Hard	en
Piece of Cake!	0.00	48	8992	8587	95%	1.4Easy	en
Power String Matching	0.00	336	69	55	80%	4.8Medium	en
Quadratic Dissonance	0.00	110	155	130	84%	3.7Medium	en
RSA Mistake	0.00	222	316	253	80%	4.1Medium	en
Ray Chasing	0.00	440	202	172	85%	4.1Medium	en
Rectangle Tiling	0.00	272	114	83	73%	5.5Hard	en
Seven Up	0.00	409	54	46	85%	4.1Medium	en
Shopping Bags	0.00	238	97	54	56%	7.0Hard	en
Simone	0.00	76	625	579	93%	1.9Easy	en
Small Schedule	0.00	59	934	810	87%	4.7Medium	en
Snowball Fight	0.00	551	91	69	76%	6.2Hard	en
Social Distancing	0.00	60	894	802	90%	2.2Easy	en
Spies vs. Spies	0.30	904	60	49	82%	5.2Medium	en
Square Peg	0.00	43	1416	1337	94%	1.5Easy	en
Stack Construction	0.04	373	273	155	57%	7.0Hard	en
Stopwatch	0.00	47	6285	5991	95%	1.4Easy	en
Supply Routes	0.13	261	176	154	88%	3.8Medium	en
Swapping Places	0.02	1151	46	35	76%	7.7Hard	en
Team Change	0.00	1559	49	40	82%	6.4Hard	en
The Biggest Triangle	0.00	742	324	266	82%	4.1Medium	en
The King's Guards	0.02	2539	27	15	56%	8.0Hard	en
Thwack!	0.01	319	55	40	73%	6.2Hard	en
Trade Routes	0.17	628	113	86	76%	5.1Medium	en
Treasure Spotting	0.01	1114	154	113	73%	6.2Hard	en
Triangle Containment	0.05	385	218	138	63%	6.4Hard	en
Trimming Convex Polygons	0.00	813	88	58	66%	7.3Hard	en
Trip Odometer	0.00	71	519	464	89%	2.1Easy	en
Typo	0.07	597	665	439	66%	6.0Hard	en
Underspecified Ultrametrics	0.14	622	18	15	83%	6.1Hard	en
Video Games	0.00	133	203	195	96%	1.6Easy	en
What Time Is It Mr. Fox?	0.22	967	39	31	79%	5.5Hard	en
Wormhole Extreme!!!	0.00	342	87	69	79%	4.2Medium	en