50° 00.25′ N 5° 43.2′ E
23th December 1944
Lt Col. Harry Kinnard to Signal Communication Commander,
Signal Corps publisher is a son of a bitch.
The key table of the day is incomplete.
I have just received an important message and my cipher clerks aren't able to decipher it.
Can you rebuild the current key table and decipher this message ?
FWBBU LGEBE DFSNM FLXPW GYIOY WPYSB LQIRS LZDNV IWXXN NCFNE
VMQFG GHDMJ GNTZN HHTWQ DFDJW KZBIV DQMNC EQASL GSECT GYAMQ
ZOQNT IXBAJ XPMVG VBYDV UCMHG UXALJ CPNDC JVIUY ZPMFE JPKAD
SAQJC PKYKZ BFPQE YZCYZ MXGWE FHJSG YAQGP JLORD ARCLS FVMYW
MQXNW AALGC XUXRZ MZHSR EJESS YEBHJ UZDXX FWBBU LGEBE