Home›Ciphers›Five by five, good news+ Follow CiphersSaveCipher · Sunday 30 August 2026ListenFree browser voice. Starts at once.Uses text-to-speech.1xOptionsReaderAgentYour square. I and J share.Tap to enlargeDownloadOpen in new windowRead nextCiphersDead drop in a hollow coinTen puzzles built around the 1953 hollow nickel spy case in Brooklyn, from Morse code up to a tough double transposition. Answers are at the bottom.CiphersOrbit before breakfastTen short space puzzles about the ISS and its orbit, from the phonetic alphabet up to an autokey closer. Answers are at the bottom.CiphersThe Nullarbor straightTen short puzzles about the Nullarbor railway, from tap code up to a four-square closer. Answers are at the bottom.CiphersSilicon in the sandASCII hex, affine and a Nihilist to finish. Ten in all, with answers below the fold.More in Ciphers →Say hello in our guest bookPublishedCipher·Sunday 30 August 2026 at 10:00 pm Adelaide, open calendar·1 min readShare this story•••Email this story to a friendCopy link insteadThis desk has not corrected this file. Corrections.The paperCommentsNo notes on this story yet.Sign in to comment
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