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Miraheze>Marshall
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=== Grille cypher ===
=== Grille cypher ===
A [https://en.wikipedia.org/wiki/Grille_(cryptography) grille] is a 500 year old method for encrypting messages.
A [[wikipedia:grille (cryptography)|grille]] is a 500 year old method for encrypting messages.
[[File:Grille.png|none|500px|frameless|left|The application of a grille cypher]]
[[File:Grille.png|none|500px|frameless|The application of a grille cypher]]
<p>
<p>
Represent both the grid of letters and the grille as character matrices.
Represent both the grid of letters and the grille as character matrices.
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</source>
</source>


{{APL programming language}}
{{APL development}}

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