Polybius Square
1 2 3 4 5
1 A B C D E
2 F G H I/J K
3 L M N O P
4 Q R S T U
5 V W X Y ZExample: Cup- 13-45-35

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Codes and Ciphers
Mystery / ThrillerIt contains different codes where very applicable to all of you who loves mysteries. I also includes all of my learnings and studies that talks about unfamiliar ideas or codes stuffs. I make it for my own book and I want to share it to all of my co...
POLYBIUS SQUARE
Polybius Square
1 2 3 4 5
1 A B C D E
2 F G H I/J K
3 L M N O P
4 Q R S T U
5 V W X Y ZExample: Cup- 13-45-35