Comment on Krypto Fans, Where are we at? by James

Here is another wild way to encode BERLIN (which doesn’t work for CLOCK):

Assume there is a running key with the letters SSOPEN in positions 64+ to match with BERLIN.
Perform a Cesear shift on the running key so that SSOPEN becomes YYUVKT.
Perform Vigenere encoding similar to K1/K2, yielding DGVGIW in this position.
Perform Gronsfeld encoding using an alphabet of KRYPTOSABC… and a key of 280 (which corresponds to the letters: CIA). The result is NYPVTT.