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Level I Challenges
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Challenge "A modified homophonic cipher with reduced alphabets — Part 2" By: admin on Oct. 21, 2010, 4:22 p.m. |
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Challenge "Letter from the Alleged Countess Julie von Ortenburg" By: admin on May 7, 2010, 2:27 p.m. |
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Challenge "Monoalphabetic substitution with camouflage — Part 1" By: admin on Oct. 27, 2011, 9:41 a.m. |
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