CSP-889, 4th problem

September 3rd, 1943 ---                      Somewhere in North Africa

Major Trumpeor,

Waiting for the new September key table (it replace the
compromised one). Every day, the staff tells me on the phone
the key of the day for our M-134C. Unfortunately I still
haven't received it and I have to decipher an important
message. I'm sure it starts with "TO Z US Z GHQ Z", but that
doesn't help me much.

Sergeant Garcia Cipher clerk

Editor's note: The Crib is given with spaces replaced by the
letter Z in capital letters for better readability. But do not
forget that the Sigaba interprets the spaces well and
translates them internally into the letter Z. On the other
hand, if you enter a letter Z (which is indicated by a
lowercase "z"), it is translated by the letter X.

Rotor Set 87156

NR026 1045A GR069 SGQZF QOYIA KMTME HIQHQ ZJLNA WLWJK RIYVC
TDMDD DZEWQ PUQTV SUANZ XRDOK FGIER QSANB UNBGY SWQNM MZSQM
KSGCP WJVCU YUVWR ZUZJL UMLCE ATUYJ NVYFJ ZZKMA NUJMI DXWFD
STSMD ZMMRR XEYXJ TLTPW CYZAS KXXQY OLNEP YOCKS HPIRV THPCC
JMUHM WWYLK PGRJR PGFBF MFOME YMHHN UINJF KTSZU OHPZQ YQFOD
CKXTQ YEKYR YECTZ VFXFK JXENB IQPCC MYLLQ TXWWV WVZLF KNNQA
NRJAZ NZCJM WVZTT YFFNG FKKZH ZGDKG UPBCZ XECAW CQDGO MXXXX
SGQZF QOYIA