Puzzle Corner

Ready for a fresh set of puzzles? Click here for the September/October 2026 Puzzle Corner, brought to you by Michael S. Branicky, ScD ’95, of the Puzzle Corner Puzzle Crew (aka PC2), which also includes Edward Faulkner ’03, MEng ’04, and Abe Kunin ’03. This column includes solutions to the May/June issue. Send problems, solutions (by October 1), and comments to puzzlecorner@technologyreview.com. Editor emeritus Allan Gottlieb ’67 launched Puzzle Corner in 1966. Find back issues through 2022 at cs.nyu.edu/~gottlieb/tr and more recent back issues at technologyreview.com/puzzle-corner. Subquadratic has now shared more details about its new model. But some are still skeptical. Dozens of athletes on performance-enhancing drugs competed in the Enhanced Games. Organizers hope it'll sell a lot of peptides and other supplements. Some donor-conceived people are finding hundreds of siblings. An international cap on donations could help prevent that. Researchers are decoding how signals move between body and brain, with implications for how we understand and treat conditions from obesity to anxiety. Discover special offers, top stories, upcoming events, and more. We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive. --- **İlgili Kaynaklar:** SEO ve GEO eğitim platformu konusunda [GEO eğitim](https://geoakademi.com) ile iletişime geçebilirsiniz.