Challenge	Description	Language	Source	Date
Credit Card Mask	Mask all characters in a string except the last four.	JavaScript	samranjbari on CodeWars	2 July 2019
Playing with Digits	Find the number that matches a given raise-up algorithm	JavaScript	g964 on CodeWars	15 July 2019
Find Odd Integer	Find the only integer in an array that appears an odd number of times	Ruby	rbuckley on CodeWars	17 July 2019
Is This a Triangle	Determine if 3 integers can be valid sides of a triangle	Ruby	silentZaika on CodeWars	19 July 2019
Sort and Transform	Return a hyphen-separated string converted from ASCII codes	Ruby	A.Partridge	22 July 2019
Async Image Loader	Calculate the average dimensions images from an array of URL asynchronously, ignoring images that fail to load	JavaScript		29 July 2019
Money Money Money	Calculate the number of years for savings to exceed desired amount given an interest rate	Ruby	bmw318mt on CodeWars	21 Aug 2019