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AustraliaChalmers hit by Labor leaks as primary vote falls to 26 AustraliaAdelaide council scraps its fossil fuel ad ban, 8 votes to 2 AmplifiedAnberlin — Never Take Friendship Personal United StatesTrump says Iran war will end 'fairly soon' after Qatar talks Computing DeskWindows 11 November update: new right-click menu AmplifiedEmery — The Question The WireUkraine, Russia and US hold first talks since February Roads Desk16 Adelaide train stations still lack tactile markers AmplifiedDemon Hunter — Summer of Darkness Space DeskNASA says LISA could find planets with gravitational waves EV DeskMG4 Urban Special Edition: $33,990 drive-away, 750 cars AmplifiedNorma Jean — Bless the Martyr and Kiss the Child Video DeskInk trailer: Guy Pearce plays Rupert Murdoch for Danny Boyle Film DeskFatherland reviews: Pawlikowski's Cannes winner opens here Game ReviewsTanuki: Pon's Summer reviews: a charming Game Pass ride How-to DeskHow to watch Starship Flight 15 from Australia Computing DeskAMD's EPYC Venice is shipping: what's new in Zen 6 AI DeskGrok 4.8 to reach Grok Bot users this week, Musk says SpaceX DeskSpaceX seeks tax break for $24bn Starbase gas plant Tesla DeskTesla China sales fall to 8,817 as Shanghai ships abroad

Wednesday 11 November 2026

How three Poles broke Enigma, in ten puzzles

Ten puzzles on how three Polish mathematicians broke Enigma, from a braille opener to a four-square closer. Answers at the foot.

Cipher Tuesday 10 November 2026, open calendar4 min read

Polish mathematicians Rejewski, Różycki and Zygalski first broke the German Enigma cipher in the 1930s. Photo: Tim Gage / Wikimedia Commons (CC BY-SA 2.0), cropped and modified

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Years before Bletchley Park, three young Polish mathematicians were already reading Enigma. Here's to Rejewski, Zygalski and Różycki.

An Enigma cipher machine in its open wooden case, with rows of round keys at the front — Polish mathematicians Rejewski, Różycki and Zygalski first broke the German Enigma cipher in the 1930s. Photo: Tim Gage / Wikimedia Commons (CC BY-SA 2.0), cropped and modified

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Cipher Tuesday 10 November 2026 at 6:12 am Adelaide, open calendar4 min read

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