# capital ring (blogs) — RSS Amplifier Recent posts from the 3 feeds in the RSS Amplifier directory that cover capital ring. Page: Feed: --- ## [London to Surrey Hills Bikepacking Route](http://laurencetennant.com/london-surrey-hills-bikepacking) _2026-05-22 · Laurence Tennant_ Last summer I set the goal of riding every off-road route in the Surrey Hills, the wooded area just south-west of London. I linked my favourite bits into a single adventure, London Escape to Surrey Hills now published on Bikepacking.com: Rationale The route is designed to be the most varied escapist weekend you can ride straight out of the capital. I evaluated off-road rights of way for the… ## [Mr Beast Million Dollar Puzzle: Twice Bitten, Thrice Shy](http://laurencetennant.com/mrbeast-million-dollar-puzzle) _2026-03-05 · Laurence Tennant_ $100,000 “World’s Hardest Riddle” Back in July 2020 Mr Beast published a “Solve This Riddle For $100,000” challenge . For my puzzle-loving friends, stuck indoors, this was an unmissable opportunity. Mr Beast called it “The World’s Hardest Riddle” but it was mainly a series of extremely tedious web challenges, including: a page that generated thousands of QR codes, only one of which worked a flappy… ## [Mapping Walking Areas in England and Wales](http://laurencetennant.com/overpass-api-walking) _2025-11-06 · Laurence Tennant_ I love exploring areas with a lot of footpaths that lead away from roads. This map aims to find the local authority districts with the highest proportion of “walkable” routes compared to “drivable” routes: The technique used to generate the map is described in my post on off-road cycling density . What is counted as “walkable”? Basically anything that you can legally walk on, that isn’t the… ## [Mapping Off-Road Cycling Areas with Overpass API](http://laurencetennant.com/overpass-api-cycling-density) _2025-09-29 · Laurence Tennant_ Which area of England & Wales has the densest network of off-road cycle routes? Until recently, I would have had no idea how to answer this question. But with Overpass API, Datawrapper, and an LLM, I found it surprisingly easy to whip up some results. I enjoy cycling off-road and like to plot routes that avoid roads as much as possible. Will this help me find the ideal place to live? Note that the… ## [Hack The Box: Backfire Machine](http://laurencetennant.com/hackthebox-backfire) _2025-06-11 · Laurence Tennant_ After years of playing the cybersecurity labs at Hack The Box , I finally had an idea for a machine. I spent some time in 2024 researching vulnerabilities in open source Command and Control (C2) frameworks , and simultaneously another researcher Chebuya was working on the same topic. We found that two of our exploits made a chain, combining for a full remote compromise of a C2 server behind a…