OFFSET
0,1
COMMENTS
The D'Agapeyeff cipher is an as-yet unbroken cipher that appears in the first edition of Codes and Ciphers, an elementary book on cryptography published by the Russian-born English cartographer Alexander D'Agapeyeff in 1939.
LINKS
Paolo P. Lava and Giorgio Balzarotti, Dec 05 2007, Table of n, a(n) for n = 0..78
American Cryptogram Association, Discussion of possible causes of failure to solve D'Agapeyeff cipher [Via Internet Archive Wayback Machine]
Robert Matthews, Notes on the D’Agapeyeff Cipher
Wikipedia, D'Agapeyeff cipher
CROSSREFS
KEYWORD
fini,full,nonn
AUTHOR
Paolo P. Lava and Giorgio Balzarotti, Dec 05 2007
STATUS
approved