15% Project Euler problems that are rated at 15% difficulty.2019 #74 - Digit factorial chains 01 Jun #112 - Bouncy numbers 11 Feb 2018 #62 - Cubic permutations 27 May 2017 #205 - Dice Game 25 Aug #73 - Counting fractions in a range 04 Aug #85 - Counting rectangles 25 Jun #65 - Convergents of $e$ 19 Jun