Solved by pani

#	Title	# Solved	Avg. Tries
6200	Round Numbers	56	2.25
6223	Cow Sorting	187	1.44
6233	Face The Right Way	76	2.05
6241	Dining	220	2.19
6321	IBM minus one STANDARD	2,558	2.04
6322	Geometry made simple	1,728	2.81
6359	The Drunk Jailer	6,484	1.40
6376	u Calculate e	1,559	2.37
6378	Digital Roots	2,618	2.15
6424	Optimal Array Multiplication Sequence	2	6.50
6462	Risk	27	2.22
6464	Horse Shoe Scoring	2	2.50
6497	Dark roads	5,099	2.89
6502	Alfredo's Pizza Restaurant	1,695	1.94
6506	El Dorado	93	1.91
6508	A Game with Marbles	81	1.35
6549	Largest Rectangle in a Histogram	10,110	3.69
6560	Code the Tree	14	2.43
6569	Mondriaan's Dream	220	2.15
6588	Goldbach's Conjecture	11,617	4.56
6591	Binomial Showdown	1,533	3.79
6603	Lotto	24,341	1.80
6612	Andrew the Ant	73	1.86
6618	Invasion	9	3.00
6622	Domino tiling	11	2.36
6624	Bus Schedules	3	7.67
6626	Measuring Problem Difficulty	9	1.44
6638	Peculiar Primes	11	1.27
6644	Careful Declaration	5	3.80
6646	Wooden Fence	9	1.67
6648	Government Help	10	1.30
6664	Failing Roads	7	1.86
6679	Specialized Four-Digit Numbers	2,814	1.37
6680	Building a New Depot	10	1.20
6749	Next in line STANDARD	7,311	1.14
6763	Speed fines are not fine!	2,320	1.58
6764	Sounds fishy!	2,092	2.45
6768	Don’t pass me the ball!	829	1.19
6778	Which Alien?	3,196	1.45
6810	ISBN	2,620	1.48
6825	Body Mass Index	1,131	1.42
6840	Who is in the middle?	3,736	1.31
6887	Squares	1,192	1.45
6888	Terms of Office	949	1.40
6989	채점	251	3.68
6996	Anagrams	3,564	1.95
7287	Registration STANDARD	58,484	1.92
7344	Wooden Sticks	164	2.35
7469	K-th Number	1,715	3.11
7510	Higher Math	3,107	2.04

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