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by Brian Gladman on July 29, 2019

New Scientist Enigma 1000 – One Thousand Times

by Richard England

From Issue #2155, 10th October 1998

Since M is the Roman numeral for 1000, we can say that with this puzzle New Scientist has published its Enigma M times – which is significant because:


In this problem each letter stands for a different digit, and the same letter represents the same digit wherever it appears. No number starts with a zero.

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