Anoraks Corner by Tony Sale
You think you can break Enigma?

Scenario 6.
Intercept date: 2nd November 1944 on a German Air Force frequency. Known ending of 3rd part of first message GEHEIMKLAMGAZOPXGAZOP but suspect at least 8 padding characters after it. Second message on same steckers but different wheel order and rings. Required: decrypt of second message.

K
STNX

SFD64 2-11-44 1026 5088 28 SF282 A236 SEXTO

C DE 24/R60 (0430) 3TLE =1 TL 242= YNG FHR DLN=

PFCAE HVHAU TJIED FBKVF JJYHP NHSVY HUQDC XXGJZ YERRI

ZJDLK KKSCY WWVMT MASOC WGVGM DTOGV NYCSN QQUVG

FCTIK QEHKJ ERLUE UNYFG LOTTY RZSNW JQSWM ZBJSA

AENVS ZBKOC PCFFS KQVGG ICGGB VOEDT WXCHQ MUFHX

WICTG QDJPJ PLKUG HFBEK PNPXV ODDFH FQJNO TAATY

YJAPC INQHR QPIRW WPKWF YBZPN EWHUV HVGZF RY

CCN 2/1-3 ZJDLH MWVMT

ALT 1/6 ZHQVY

CCN 5/6 ONDFH

2-11-44 1031 5088 28 SF283 A236 SEXTO

C DE 24/R60 (0430) 2TL 238= YNG NDH NXR=

ANLYH DVRBB FQESC YNUGI LPEPV WCBWP QFSKE QDTYP

COAXT HARCN RBMNU ZZYKS XPBZK LJCVS BKKVV ZPDCO

XDJGS REREE FTMTB HRXJA AXUXM LNLIV CLVVG HBLPL

MXIOQ XMHPI TCEHJ UMTSG LGWEN DUGRX BVVNA DHZHP

GWNRZ KMTRH ZQXCD XXHXN BDYJX GWGBR IVDWR ZWXJN

MURTV BPYOD FFZIN OCOFM STJGL QEOFJ ZCBMH SOZ

CCN 1/4-6 YNUGL WZBWP 3/4 HRXJA 4/6 DUGRX

ALT 2/7 BKKUV

2-11-44 1033 5088 28 SF284 28 SF284 AA236 SEXTO

C DE 24/R60 (0430) 3TL 50= YNG SAK XZZ=

OXLDO QMPAW DJUUY EXEVG IFEWZ NVKWB VEDNP QWYBS

KWQDD EKWB

CCN 2/2 EUKWB

SENT 1200Z A B P

Second message:

SFB48 2-11-44 1324 40 SF382 A297 SEXTO

C DE 3/3RS / 1238 3TLE 1TL 247 YNG RFO AZX

U-QQC NFISH MEKAU FXMJH NHRCY FLLWO GMUCI KBRLU

QUPLO NICJH DJFJX JHQXL AFYYY KLDTK PWGFC PXDVF

PGCRK WEOST DFUHA KOBHB CZFFF IIQOF TEPXK JUARK

NAXNL OFGOQ NIJJN WXHOE RACPT OOGUZ JVTHC SUPHX

CIDYL HYCWD RFGHX MWGMX AIXUO LQAXS QJYDO VLMSM

OYKFL NWMEZ KOZSL CJXDH YKWLZ USDJN XXJZE SUCDL

EAQCL JC/

CCT 4/1 NXXNL

2-11-44 1329 3154 40 SF383 A297 SEXTO

C DE 3/3RS / 1238 2TL 246 YNG VIA WYH

NDNLR EDSPY CKGUL WIXUD UHDZA LIIPK CPATP FOAEN

VEXJT DQTFZ ASUWP SNHWT BMABB UGTQG QGHGN XCCOX

TFPXM GZISB KXMBE ERLUV ZLPSR DKNSO FUDTP ONEBH

NFOXT TBHNN ENFXI XRDIL KJUUT TPSZC LMAXF NHSLB

OTPNR PRPBD XGVSI BZEJH QSTHD ZNOTN MVPTX SKDAG

MUVMI MXCVV UFWZH ISSRH YVMMN XNLPA VIXGF VJWXO

NMHNI A/

ALT 1/5 UHDZW 7/1 NMHRI

2-11-44 1332 3154 40 SF384 A297 SEXTO

C DE 3/3RS / 1238 3TL 225 YNG SMC RYK

YGIUT ACZGX GARMY XDZLB TRFFS DLQCL TV--X ---WF

-ZXYU FUMGV GZTWE YCTCC OPYNJ BMLLL FGBEC ACTIW

ZLTSF HMXWL FPHNY EWZZL KBBPJ XMIYG MPHAL XXHZM

HAWTF MTOOK TSLEJ UFHHS PSGXD CXTUM QQING TA-B-

-NGQD DDPBJ NHPIV KCIDE YEPY- CBPTV AKROP WAXMJ

TYCLE BMKLC TOBZX TOCPN PXKNA

SENT AT 1430 Z HFB

First thing is to find possible positions for the crib at the end of part three of the first message. Start with the last letter of the crib aligned with the end of the message. This gives a clash on E so it can't be here. Shift left to 8th letter. Clash here so keep shifting left. At 11 no clashes so it could be here. Make up a Bombe menu and run it on the High Speed Bombe. No stops found. So shift crib left again. No clashes so try a menu on this. No drops so move on.

Eventually you get a menu which gives just one drop. This also gives you eight out of the 10 steckers. Try deciphering the start of the message by winding back from start of crib to start of message and two more steckers will be found and a turnover point. This sets the right hand wheel ring.

Once you have 10 steckers you can read about the E rack and try using it on the second message.

You may need to print this then go look for tools.

This page was originally created by the late Tony Sale, the original curator of the Bletchley Park Museum,

Anoraks Corner by Tony Sale You think you can break Enigma?

Scenario 6.

Anoraks Corner by Tony Sale
You think you can break Enigma?