Hebern: 8th Problem

Munitions Buildings, Washington D.C.

Signal Intelligence Service

April 6th, 1931

My dear students,

I now propose a problem even harder than the
one I solved. The following messages have been
encrypted in decryption mode.

To help you, I'm telling you the topic of the
messages: the story of Geronimo and some
probable words: Apache, Chiricahuas, General
Grook, General Howard, Theodore Roosevelt,
Southern Pacific Railway, President of the
United States, Captain Juan Mata Ortis.

The letter Z replaces a space.

Furthermore, I give you the initial position of
the rotors and ratchets wheels for each message.

W.F. Friedman

Dispatch #1 – External Key : AGRRAAN

XVMEH KHNDG CXVFG JZPIG RDWXH RUYEV KAEWT HSZWW MJMII BSGRU

YEQDU AHTDX WRMDG CJOFL AHCZN FVSSQ KRLDA SEOZO RIMGO XRYZU

OETCB WWGVS OUQEK LVEQJ JKLOA ICDSP ODKSK EZLDE KZFEW MYBGZ

OHWKT NICRE PLUKU DCVSX WVJMH JZXWV DPUOB QRJBC BSBGB CZMXU

FOLXB DAGWB YVRQQ ASYHT RWXRH QCHWB OUFIT LYZRL JAZWG KLNGB

COZXC RZSVP QMELR XLOOB HLXGR DTBYG PFJDN WTAEK CLTBN IKIHW

FPVSI JKIKR KMJYV YSNRL NNBQO NHCWQ BWDOM REFQA CPLLV YTHWP

GOQDF MEPJM JKPSC UJLIC YTBVR OGRJA AJVNE KKOGC HMVGT LZEUY

LETYM JPNFZ AVHFE AVTQD MTUFU MGCGW LXKWE CSEHY RCIVL ZHYCB

FZRCX QPYDE KCUFA NCAEJ BTCCJ BGPWP DXXYD WEOJY TEKBG EGDMC

TXCFJ ZIGVO VHDMN ENAXQ PGUME DNOUY UEYLU KVLTH GKXNL SECCS

ADWTN ZZSTG EMDNZ DCIXV TLYPZ DLLWT CAFQW EXIKX CWRBN RJELO

PSEUP WBEQD ISODL XXSDL QYOGJ UFJMW DFTOS HUQPT AICAE HCJZM

NVRUE YUALS XVTAS GGFVU IDLJG DNEIT CYWBD YAVFP SFKVW WPVWQ

SOEDW QJGEK JRLIC MONAO PNARX RWOMY YVIBL IWIKL MMWOO QJFSH

TUYWZ CYVKH XIMHI LHKMB PNDJN DNPTT VSDWJ ALJJQ BXQDS QUIMR

CCQIW KTQAY FQYGH MYCO

Dispatch #2 – External Key : GOBBAAN

YKFKL QUTZP UZBMI EEWBA KHIZM KBMPK HBRBI DFQNW MUGIN ZEMYO

NCLGM QLKHG LDDTQ MDVRF ERWOA OXXON YVYSY QHVJZ SLTNS UVVBO

EOLYV QEDME DHUIO TXLVN JCXSA OKPYE CNBXK PMIAJ CWEIW TZCOO

DHXQT MGMGP RACDR KUJOY KTVAO DXXXA JPFNK ZIVGT ERKLN UVBFP

FBWVN NPERI WGXNS AKQQN NNJNT GFEYM DAUPI XNRGU SBYVE YNZIP

NCDAO MXOLU ZFGKL USCWS TXUZI ZPTLN KLYXE JCAJV MEVCI ZVCNG

JBBKV RATKB OMIVD RNPLG WVXCN MZLTY COCQK CWWFG OUWYA EHKQE

PKXEA FMIJT FYHRQ GQVMF BIXLA VNOJX KZUXT KUVUJ WKXXN EYTWU

IUXRX VGAND OWQUL KSTND HTNJQ IKSXF ZNTVP RYGOG EYZVT FQXOV

UCSZS DSQPL KFNWS PHDPK GFFEI HXFGT BAWDT OKHPP IXZIZ TSNVH

LSLFD SBWJO OHFVB PKNRU LXLOK XRTNY TZRVH WMPZE DGKRA GAJYI

HIUBY GSOLX TKVYZ JHDPU QMTHL HLBXO YHISA OUAJG UJKNW DNCNK

DERFX YUEHE MMKEP KBYRO SPBIV BGNFJ ZFLTV THHEG UWHRN CCXIA

LOUEH SBASC ITEUM AKGOI UVDPS GIQUT VFJGD HRKZF SVPMA EPKUO

RWXOC DDNZP OOEOX ACZYW YNWNB TTTSH MKYQV ACFKM IGCHN EPSWL

ENFDJ PNHZZ IIQOT NJJQJ TTKZB VPKYM BIALZ QWJBR WXDJA KEZWR

QFWWE HSHUB EHBJQ GEDWK BNNYU IV

Dispatch #3 – External Key : BLOOIIS

ZDZOI WBBDB EIIIS EMCRH XVYCP ZAVLW NHTWK AXIXH MNOIA HXGXV

AKGRD IRYJX MZWGI IXNSS HXDHQ BQOEI HREAX CGZVF GDIDN VCMPU

KWZAF LZMLI EOEWD CRBXS RCMJK HRCQG NQEMA BDTKI XXTDB QJNXP

AKSGK OPRMX SVASW RGWJY QXHWJ UXQRP DUATI MKZQT VEJXA YUIOF

KBPIK NZOUD SDSOS ZGSBP CCLVC PKPXA BKZYR BHBTZ TQSEM CIEHU

ULGSY YTRSN BEIOZ YXEKB BEMAG WPNZW ZFHWZ NYFMA NRDJP KNGIV

KAMHP MOOUF PLYNO FVNAT HOLYK DDJFX AMZRJ UFDOF FLJJA BLUFP

LMUMD SWZAB FOAYY LJOAD SQTGL AUWYR SVYAF AAIOX XYMML VYPSW

UUACE ZYQDM ITSMB TYHSX IVYCO HWRUQ MHZAC IANQP FHSJN WTNPX

EJAQO MLMAY RFFVC GCFJU BOBAI PNQLM QQKLF OQMYF ETKXQ MVRPO

KEYHP BMGER IMBES HFFXJ MVTLN NVNKP JOEMZ KPQYU KGXHM ACBIZ

UWRFL HSXNY MHPCP TULPB VUSMG MRRDU MBTDF QTANS UPRAL RSEOB

NEMLT KUZEG ZEJEF BRBER LHGUN FCKMD GMYMS TJUTQ FTFRM WIYHC

ETYRG QQLNV YKVNP OOAKL VOEHX MAU

Dispatch #4 – External Key : AGAANNA

QHLOU KHBGN MBPFV WFJAL WWQBS DUKDM SZYAE XCNGB VZZQF CQEDN

RJNBX ZNWIH RMFYJ GRJIH BMNHF RJVAV UNUGV XGARU CTCVZ QOTGW

BUZOY BXGPH NAZRN SXEAP CPLRV DEINB EUNNM LIHOF QKTEC HRMTX

IYTCV TLEJO ZIVUD VKHAG BEOBX LJQNY WBLEW EQVAB QIOSG GPPSG

VLSEB XSUCQ DISNH KPWBB EHPKH AGUQH UQCPA OLZCU UGTAV WUWNK

ZKCHR JPXWK GDVJC OGUOK OWGFY DLTGU HTGKH QEGTX KGPJF RCFMC

LPIMY OSDGC IDEZG ZCWSB OSRXB MEWVF SBLHO YRFZM BGTSZ KSPST

THSYZ YOYRA DZCIQ RNNRH ECRXQ MOUHG BMLNW TFCWQ ENRNB HARCP

ECSKJ ICVER DVUTD VPLVS TCWMQ LSYCE VFEXG QUODZ XABMD YALEM

BYDCA JENAA LNAKQ PPTTQ TGTNM DHVSI ZLSSI ZSVOT IFPBV ITNFA

DTCZX BPWCA PDTWW LGQIP ONYYX UQTBE PBIVH TMTZM DVWZW TNCHY

PBEVK TILJN DFOVR APMKU STDXA YMBMN NKRMF PSJKO KFEAU QRPTR

MMEWN DRMLF OTPSI SCBWB YUOIG YIHVA CZOMY WLQNR KMQEL FKBOX

BKIIK CCIEH CTIHH YSEQT ZWGUF LSJLH LVRJA ZYJXB ZOSJC OQUXY

WTKSE ODGVA OFJZX BXVHP AWSFN IHLVD WMAWO TENZL LCAFI TUMVC

RFRWB MTITU HEOTP RUXLU UWGZ

Dispatch #5 – External Key : CUNNEEO

LIFVO KLYZZ SQFQP DIIXQ RKTWN EJBRD CFETV MCBYN PXDAQ IWHYB

TNLED XQJIX ZBBFB MXOBL QZIRW BUBET JNTBV AWCFI ILSJE HNIOE

KGPJH IHNJL UPJCE AGRLX JXWRL HKDQA ZOUYH OZUKO IEOIN UKFNC

AHLKP OHCWT SFAFE ASDZF FGMNN UMQPL QIUPV CLNRB YFGPA NVYMO

PJPBZ DTKVO DFLCB QOXIQ ZWUSB CXMRC USQAO CTCEG GSKTG XNAMA

ATWSI HJMWY OBNHV IRZSY YZPEG UZHLN JISTN SEMTX GVPRX XNTFN

OCAWU PXFWH DWWWE FTGIE LWUKI GRGBQ YXYJH LXAIK HMWXF CKKDE

YEJOH AGXYG JXJVZ XNRHM FQZFT WPSMT VROJO YTITB BNHAU UTZYF

LSSIG ZDEQD IPWFE SWJOJ ZBSCM ZUJMX IHNTR PBGKN YJXBK UEQAV

CENJF OXLXQ JBFXV GOVSG KGEBZ NMHXP XTTZH TTDNV DCNOW FEBID

MZNTK LPCVL RACEH XIPTM FGWSQ GJGHC HNFYU MAIYC UPFYE MLHWA

NAJUB MJWGO YJARL IGXYZ KKOTA LYATI RSPEZ FMZDC OLGMU XPDIM

BNPRL NGVKE ZVZYD ETOBN QZENP WWBCU XWKRZ GLQDO JLUYR UUJQD

RPRVX DHYKE QGQLZ HKDYY POAFE SDWPO SDLBM KMSTH LBHQZ HYWXC

KSNHD QQLTH RDLIY SSKMN TPVNI YFLGB YCSLB MLPSA AZY

Dispatch #6 – External Key : DOVVEER

LKGIL OXQXZ DLKVB PYWKX UCBFA ZXJUI GHAJY CWBDD VMRQR TYCFQ

DUXHF MHQBF UWNQL WMRHZ JAMUE ECMNC WEHYL KCFDI YPJYK MYEGO

RAZYC QZOJB OCFLX ZOCPI JNXQY ZOIIB PTSPJ AMBSD MNYGF OVBCL

GUJRG FAQXQ ECFLK VZMIF CDAXF EIMOW XTAAK OQHCU PSEQZ SGYSN

WXFDG BTDGV FSFZV WXWCF EMMQC QGSTM NUJJL BSQNU FDYUQ LRRBW

GGPXI CQCDG NRVTZ PQGHE OQCQH FODWP KMCSZ EEUQE PWQGM YWMCV

MZHHN RWFWH QDYSU PQWTL JHCVP OLPVO FBSYH UBPPV VQAGO FRJZW

PDZZG ODJOX UYKDH AMBXI LHPXS CKJEI EISZI FXERQ YAKLK LBWFG

WOKZE HPTGU DSWHA IRNGW EUQCI NMLZL PNAXY PYQKV ZLIZP HZBGQ

AASAZ OIGDL HEBEU FEFIC QTWBP JBZNJ MZODM QRMSR ZXXIG FOGWP

ZUDYE QMNHR NFPIK OYBVN AWIHC ENHBN WJDJE VXAGV LNRCT THJQA

SOUXP HWENU KUKMZ CXLPM EWRJK BSAZV QASYY SKHKM DLIKL XUNYQ

CODDH ULWWH JUPWT FRAAT SNDDC DTZWO INMWQ XLGZP GWWNW UHSPU

FJUCI NQPIX YIYLB CDBCE VSAKX RDCLA SBXWY XYPYR BLPKS HJSGJ

LVQZR LKDVL FIBJR TZLHJ VYHLL CXBVQ LNBLN ZQSLT EBOFE ULSNQ

USCBI NYVBP UIBAW UODDX GNIST JLSPR PADLT ESQEZ FORVQ DVRXK

FCUOJ DRHCJ JSCVA BVMVM OGKLX NLEWZ ZRJOR HAVXZ IWMGT SCUMQ

XRUAF WEKVJ HZMSK XPUOT TFK

Dispatch #7 – External Key : GENNOOA

EIMJS QSEBI RRPHD DMMZG TNGBG RMJEY YKXPZ GISDU UZIGD PYALM

CMYES UNNET XSNWC IHKRT RSGPY OUHIY AXOXW ASKSP HYHAC RSMBK

IVTIW JPEEB MEVNH HROBQ EMFHZ ZHTXW ZCKDU OBFKD EEAYB ZWYYR

DOODQ HFHNI DFHFP LOLGY ZWCFT MOXEB YPXZC KMXKD VZBNH RXSAA

QQSAG MTORC ACIIE HRUXJ YZKEX QYVUW KMHHO FEVLV ECOZL IHFZC

AYFVM QLNAA UAACE JKKSN RVARM HXABO YPRCS PAZRM ETHQJ PCZZI

HHSQD LUARM ZXGMA VNLUD GSBUN CMICN JDPMI RNCHN ISJPJ NRPOA

NYLGC SVQAX SRIKI YUBWC HBSQQ EXQAL WBGRT VXSGO WIZAD KFSHD

VOWJL GZABR UGMAV ROYLX YNOVT HQJSY OYRGA XDXYE CNCBW ETSWD

GCWBO CXREE HBWSZ BSNPG GPLOA RPEKX PJLAW LVLHN ZAHBK NQQPH

MBOJK HMNSE TNFSK QNJBL WKVDD AIZTF GGWOC YBCZB KFEMT AFUAQ

WFVDG GQQOR USCZY UVHWX BHVGU HXFNK OTRTU NBEEL BZVRM RQYBI

DYCCQ XHRDK FABMV ZYLDF URLKV MDMKB WXPXH JMNJC AQYIZ KQAGM

ZDWSV LWWWF MFPND FOLYA TDWKR BCKAP OOYGP FFQWS SDSOF JRITW

CJIGE DFXZM HOAZA HLTKC

Dispatch #8 – External Key : HAGGUUE

WFNRS XEJXA JYXKU TXDNE FLXLM JASGP EEELI HVIMH IVUHJ UNEAE

FIMJL PRDGS DNOIC TDSUG XLUGQ XMDXN ZGWRV UTZES GYDSH HCODZ

JVIEM FRWXP JBNSP KVDVK VKSTK GRQOH CUNAF FPGYC UYPOL VRPUO

KIAKP NLNGB HAZFM ROLZN WXFUK VXYPJ ZPDDL GQEYS TEHQM YVEXY

FIRVH TYWRC RRBNU GPIAV HRZKN YNFUC ULETN PVXXH CTXTY ACDDC

IWJIA MVUJL CFRQN UXRUP ARJEO VAQPO KCBGE EHLGX XDPBD EHPAH

PDXWJ QFYOB PNKTC VCKUN GOOBL WUZJS PQZNO JJSGT ZGQBU VMLJG

WJBNE LSVZB BZRPZ IEXSD JUJZV TREGO JEUPM VMNMD NUSYF ONZUH

VFGBP NVCON DIJSG NQWVI ZIVCQ IBWRP MSENB ROKUT RLODU MQJBK

FDLLA ZAIRD GVSMX HVSTH TWIXO GGGGC MLKIU BCRIC HWHIJ WWNXE

BRQKZ PQUQF GRFFE ZXBPM DPRWR LNLXG PPVXV ODRZS DRMHZ SQTWS

HJIPY FWODZ WPOEM LPDSC FPSEB LUDMD EKKSM EHAUP WTIUM RZUPE

TGLDD WIJFB YMTYX DNQBV UFUCS PWHYR NAIMU PIPYF WRWBM HQSOM

MNDPA TAJDE CUSIN LTGLO VEMUQ PQEQE HLMFQ QYAQV JDTWA GJPIK

QZQPQ PYAIS QUYGU NDSHF LRAOZ MALUX JQDDF FQEQC VINDC IQHCM

JNBSM HIJPU QOWBW OMUQD TZJSU XUAKY TMVZN QROYL HCEFN UCWFR

OSZVD MPTFB KRGLM NLZPM NDSMC HXDZI DOMQB IHBQW HYRQA GSHUA

NEVHU FDDYX

Dispatch #9 – External Key : MONNTTE

FWMXD HBGKB UQOWW PGNDI EWPIB WOZDF DEKNI NOOFK TKHCJ VWPIE

CQLFS JKNEZ XZBAV KBQMU CLEQV LEZHQ MJUFO JOOAR ZAABU OQDJW

FIBPK RPBMP QMKEL IULQB CORUY PZZMH MFQEB OHHYY XAHGT EBZWF

HSXGU JTBKX AMUVX TQAMJ IZENZ BPYUG SFSZN DPIRT YIJRF XRFJY

KUJGA JSGAN MZDEK CILGT FMVVP IUTTQ TPZMW LRUBO JLSCO PCYDF

ZMGSY RJUYL GSZRK QQDKO FGXED GNAHD JAFHK VBCIK DFZTL CHPZX

VJDYR RWAHB EQUIJ EXNHO VJPUI FJTFM JKLIF QTRDM DMFSK XPVQX

JADAS RFQIJ CNBJS QYABF YRVXZ NTZZI VBVQY AMAEQ XBFBO ZYQWL

GLOOI QAHXD RMAVD MDTWX FINWL PTZMW TTZGB SRDHX RIQZW TYRRU

ORYBV QKUAE NDBLF CADYY JCMZH GOCUL YBGCW PICJQ URGIA QRWLP

ODYFI WUUXJ SUNUF UMWQB PHGDL RVHXF EWDOI DRRTB UXMRZ DSEGI

KOTUZ FJZJG ZWWEB NLMBK VXIWH BYMNB BZAFJ HPFSQ BFJPI IRZRJ

GRSSD EXODO JBLGG YEOJT IBENN SIANK BNNGJ DFG

Dispatch #10– External Key : NEPPAAL

ILAFT UJQTK RPRDN CCYDP FDFQH TFHVE PONVA SLHQV SBYGN CKRGF

TJDXK WTVLC BYXLJ TOZPG PQDLP FRMNH BFFUR BSSFT JMRFJ NELQN

JZTVI AJICC FPFWQ QTCVA BCJRO JWPWE BTPEU AIAWK LOLVQ TLNLM

JNSRV NJDRL TNAYG TAZVU ELTDB OREXI IESMJ TJWPO SUDLT EDIMS

YUIEG QCBMF HJJZX HAKMT HUWTT EBMCT CCNYQ ZAYTQ NCMMF JXMBX

ZHWGE VLPHU HVTQH CGPAQ CKKJZ QODDB GMRAJ TKNZJ CYFNG APSDP

ZMFFK EGECQ ZNJAO WHWKC NGVSD EFUCG VWMMI ZTQXX EIRZD JGYFI

OIAIA PBUCM SAYOP JMZAX JYBSI BRJKR EZWTU QGQCJ BFLIF KAHYO

YOBZU WJXFY PQBDR YOPOZ ZNVCI KFZRZ PSAYL JMAEG DTOXC GRKPI

MMFNG IHVEE MYABF MJDRT BAYKK CAGQK MHUCI SPXGZ GJSZS WSCFO

XKZAE HBTMH HCKAT MIRVU LFCGN AXOWX NBRQB AHCEP CKKEA GEMVN

FRHTH BNCJP ZDRDB MKEIN FTNDE AABUF BOQUR OXDAD GLAFK UPZMO

PYZWO XEVKM FBJHF TVIHC CGMLP ARVGH QXLLI MGHXS HTRVW KIQWE

FDNTV LBWRG QYZSW AIGMH TTTKG WBJNU RQJNY PGBOM JVLYD ACPTT

WBTOQ TAKGQ BOVCX MGASE KJSQR BQBXI GJLFQ XGBMZ ASZPF RRMDR

THPTR PKUIB RLCW