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.
It makes it easy to trick them into doing things they shouldn’t, such as telling you how to sabotage an aircraft’s navigation system.
Some donor-conceived people are finding hundreds of siblings. An international cap on donations could help prevent that.
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