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©Crown Copyright 2011
Agent X Code Book Challenge
A very exciting event is happening somewhere in Buckinghamshire this week.
Use the code book to work out what the messages say. They will give you a clue as to what might be happening and where it will take place. Instructions on how to use the code may be found on the right hand side of the code book. Watch out for the HH groups that will tell you how many words to use from each line.
Messages 4 -7 contain words that do not have a code already made up for them so you will have to use the table at the bottom of the code book to decode these words. Watch out for the H L H L (start table) and H M H M (stop table) groups. In WWII agents would have used the table to make up a code for names and locations.An example is shown below for how to use the table.
Example you might want to put into code the name jonFirst small letter j, use j in the first line of the table (though you could use a j anywhere)
Letter Lis the letter at the top of the same columnLetter A is the letter to the left of j and in the same column
K L lVI 1A.qiAjlA z •B l H 7. 'R · !
The code for j is LA. This is then repeated as agents in the field would have had crackly radios which were difficult to listen to. So the code for j is LA LA
SecondletteroUse o in the third line of the table (use a different line and column than before) Letter A is the letter at the top of the same columnLetter C is the letter to the lett·of o and in the same column
h
©Crown Copyright 2011
]\.iA B l r c Q (
- . 1
The code for o is A C A C
Third letter nUse n in the fifth line of the table (use a different line and column than before) Letter W is the letter at the top of the same columnLetter E is the letter to the left of nand in the same column
wAp13n Ok D6 l l.l......
The code for n is WEWEThe code for jon is therefore L A L A ACAC WEWE
Message 7 is the competition question. This competition is open to all UK school children aged from 13 to 16. Work out the answer to message 7 and send it- in plain English- along with your full name, age, date of birth, parent/guardian(s) name, telephone number and full address including post code to:
The sender of the first correct answer to be drawn from all those received by 181August 2011 will win a prize.
If you are not eligible to enter the competition, you are still welcome to solve the message.
AAbandon- operation - and -proceed -immediately - to - safe......Abandoned - position - due - to- enemy - pressure -and........... Able-to-cany-out-operation-as- planned ....................... Advise-us-quickly-as - possible -if- youAgain -soon -as - possible -and - hope - to... Air - field -at -attacked -with -good - resultsAll - arrangements-compte-and - am ·ready to attackArrives -at -in - hours......................................................................At- the - end- of- your -mission............
BBBC - message- will-be sent - to- you............................Be - careful - not - to-give -away-your position Begin-operation- at -once-and- nform..................... Between - the - following - point-sBlue -light- will - be -shown- atBreaking-neoNs- pease- S Nait-further- nstructionsBut -were-unable - to -reach - target-due to.............
cCame -to -Sp::lt - as -arranged -but - found................................Can -move -at - short- notice - to- areaCannot -undertake -operation-due-to-lack -ofCarry-on -as-best- we-can - toCasualties - light - but -much - equipment - lost -in.Codes - not - underslood - please - repeatContact- made- with- friendly-elements - at -given- pointContain- ers-safely - received- also -equipmentCould - not -hear - you - at - all - because -of...................
DOF-station- attacked-and put- out of -action............................ Damage -d -enemy- installation - s -at- pointDecide - d - that - it -would -not - beDefended - by - strong - force - of .... .....Did - not - attempt - attack -on - target -due - toDiffirulty -of -movement -in -area -due - toDoes- not - offer -much -chance -of -success - becauseDrop - ing -arranged - for -at..
EE·Boats - attacked - at - their - moorings -atEarly -as -possible-so - that - you - can East -of - the - point - wtih- which Emergency - has - arisen-in district -round.. End - of - messageEndeavour -to - find -safe - house - inEnemy - agent - believe • d -to- haveEvents - are -going - ahead -as planned....
FFew-casuaHles - but -equipment -damaged...................
ABAB ACAC ADAD AEA E AFAF AGAG AHAH AlA I AJAJ
AKAK ALA L AMAM ANAN AOAO APAP AQAQ
ARAR ASAS ATA T AUAU AVAV AWAW AXAXAYAYAZAZ
B A BA BBBB BCBC BDBD BEBE BFBF BGBG BHBH
BIB I BJBJ BKBK BLBL BMBM BNBNBOBO BPBP
BQBQ
MMachine- guns-and- mortar-s- areMain - forces - in -area - are - grouped -atMaintain- contact - with-us -and -instruct - your Make -arrangement -to - receive -stores -on Marked -with -white -square - blue -circle... Metre-s - fi'Nay- from -target - areaMile -s -away - fran - the - target -areaMine -s - laid -In- area of...
NNear - to- target- as- possible -and-will.........Neay - succeeded -in reaching - target - but -enemy Need-supply- and - ammunition·urgently- send-soonest Next -object -ive - will - be -target - atNight -attack - will- be - attempted -on -dateNo -further-news -of- enemy -activity- yetNorth - erly -direction -and -will-soon -reachNumber· s-increasing-considerably- and-position- now..........
0Objective -s -must - be -attacked -at -once................................ Observe - vation- party - ies - report - that - enemyOf- the- container-s- were -lost- andOff - the - air -unless - you- have - urgent - trafficOkay -to go -ahead -with - plan -as -arranged.......................... On - no - account -must -you - attempt -toOther - wise - you -will - will- have -to - tryOut- of - action- for - at-Jeast-
another... pParachute -1st -s -will -be - dropped -at... Part - ly - completed -will-try -again -soonest Pass-ed- here -heading-in- direction- ofPetrol-dump -attacked - and - on - fire........................................... Plan- impossible-due - to · enemy-troop-mowmentsPoint -noted - and -agreed - for -operation - next. Prevent - enemy - from - reaching -tOW'n- at - all -costsPrisoner-s - taken- in • area-of....
aQuick-ly - as- possible-and-keep- us- informed....................
RRAF - agree -ground - for -operation-s-on................................ Raitway - line -s-cut -between - andRation - s-short -need -supplies -ofReady - to- begin -operation-immediately -on -receiAng.Reinforcement - s - needed - urgently - in -area - of Remain -ing - here - until-1 - hear - further Retreating - towardsRoad -s -bei'Neen - and -are -almost - impassable.....................
D F DF DGDG DH D H DtD I DJDJ DK DKDLDLDMDM
DN D N DODO DP DP DODO DR D R DSDS D T DTDUDU
DV DV DW DW DXDX DYD YDZDZ EAEA EBEB E C EC
EDED EEEE EFEF EG EG EHE H E I E I EJE J EKEK
ELEL
E MEM ENEN EO EO EPEPEOEQ ERER ESES ETE T
sSabotaged - tephone -communications - between - and.........Safe - house -found - for - you -in - area Sent - party -to - attack -target -at -spot Shoudl - we -try - again-or-wait- tilL. Situated - by - the -river-atSouth - erly -routeSpot - not-suitable -for -dropping -supp iesStay- where - you - are - are - until- further-instructions....
TTake- all- possible - precautions- to -a'vOid- beingTank - s - passing - through - towns - atTarget - destroyed- have- retreated-to- area - agreed Tell-all-concerned - to prepare -for - operation- s Temporary - address -in -safe -house- and -remani ............. There -at - earliest - possible- manent- and -contactThe -Tomorrow- if- possibleTroops -moving- from -this - area...
uU-boat - parts - beni g - manufactured - at- factory..............Understand-your - instruction-s -and - will - try - toUnless - we - receive - further-instructions-will - not Unlikely - at -present - to - be - able - to -attack Unsuccessful- but - will - try - again-soonestUrgent - message-!0< - you - and - your -group-s...... Urgently - as -cannot - proceed- unless - they -arrive Us - whether - you - have- managed- to -contact..........
VVehicle -s - attacked - tanks - destroyed........Vsi iting - the- safe . house - in-hours.........................................
wWailing -further - instruction - s - to -carry -out.....Was- unable - to hear - your- message - dearlyWe- are - ready-to - begin -attack -onWe- were- forced- to-abandon -attack -due-toWeather - holding- up -operat on-s -at........................................West- erly - directionWhere - shall - we - proceed - next -as -weWhich-missions - have - you -
already·completed yYes-but- take -care - not-to-endanger................................. Yet- manage - d -to-secure -position-sYou - can rely - on help -of- groups - atYou- have - not-answered - our - question- S·aboutYou- must - then- proceed - towards- area - agreed.. Your - message - number - received- okayYour- message- m.mber- please - repeat...............................
EUEU E V E V EWEW EXEX EYEY EZEZ FAFA FBFB
FCF C FDFD FEFE FFFF FG F G FHFH FIF I FJFJ FKFK
F LF L FMFM FNFNFOFOFPFP FQFQ FR F RFSFS
FTFT FUFU
FVFV FWFW FXFX FY F Y FZFZ GAGAGBGB G C G C
G DGD G EGE G FGF GGGG GHGH GIG I GKGK
O.......G LGL1 GMGM2 GNGN3 GOGO4 GPG P5 GQGQ6 GRGR7 GS GS8 G TGT9 G U G U10 GVGV11 GWGW12 GX G X13 G Y G Y14 GZGZ15 HA HA16 H B H B17 HC H C18 H D H D19 HE HE20 HFHF21 HGHG22 H I HI23 H JH J24 H K H K
For the code group before take the meaning up to:the first hyphen......H N H Nthe second hyphen.H 0 H 0 the third hypen...... H P H P the fourth hypen.... H Q H Q the fifth hyphen H R H R the sixth hypen...... H S H S
For a code group on its own without an H H group following use the whole phrase
To encode a word that does not appear above use the table and the following: Start table ...........H L H LStop Table............H M H M
Find - out - if - the -enemy - have - abandonedFinish -task -and - will- withdraw ...................................................Food -and ammunition -needed -urgently -send..................
BRBR BSBS BTBT
A B c D E F G H J K L M N 0 p Q R s T u V w X y zFor -next - few -days -Forced - to -abandon -operations -due- toFound - spot - suitable - for - dropping -operation -onFrom - now - on- we- shall-attempt -to............................
GGave - us - no -opportunity- to - prepare - for.........................Gennan - s -prisoners - captured -and -takenGestapo -are -searching -for -agents - in areaGive - password -as - fobOINs.................................. GMT - untii-Go-ahead - with - operation - at- earliest - opportunityGone-to ground - near- target-and- winGuard - ed - by -strong - force -of..............................
HHad- to abandon -position-due-to -enemy - pressure............. Harass-ed·by - enemy- and- am -withdrawingHave -arriwd -safely - with - all- containersHave -carried -out -operation -successfully - am withdrawingHave -spotted - target -and - will -send - full-report......... Help -will - be-needed-in - area -soonHere -as -long- as-possi e-and -will- notHurry - up - as - fast - as - you -can- to........................................
I1-am - not - ready - to- undertake -operations - yet.......I-cannot -attack -target - due - to - lack - of -ammunitionIdo- then -I -will - attempt - to -contactI feel -sure- that - we -shall - be..............Iwill - not - attempt - to -contad-you - unlessImmediately -you - receive- this -message - you -mustImportant-event-will- take -place.........
.............................
1t - will - happen- in -hours...............................
Join - up - with- main- force -s -at...........
lack -d - supP'ies - very -serious - send -reserv
es.................... land - ed - safely -with -all -containers -and -equipment landmark - features -are - as -followslarge -stocks -of - petrol -and -of -oil..... ............leave- as- quickly - as -you- can- forlink -up- with- force·s - aslocation -ptcked- will -settle - in -and - attempt - tolost-most-equipment- need-replacements-of - all...
MfNn01PrQy
Mu No On Pi Qb
Mm Nx Od Pp Qg
Mn Nm Oi Ps Qd
Mt Ny Oe Pq Qp
Mg Ns Oo Px Qf
My Nw Os Pu Qh
M* Nv Oc Pf Qz
Md Nj Oz Pv Qx
Mj Nr O k Pc Qu
Mx Nd Oh Pt Qa
Me Ne Or PI Qs
MI Np Ob Pn Q j
M v Nz Oa Pd Qw
Mb Nk Ow Pz Qe
Mr Nq Of Pw Qn
Mk Nb Ox Pg Qb
Mz Nt Oj Ph Qk
Mo Nf Om Pb Qc
Mw Na Ot Pe Ql
Me Ng Ou Pj Qi
Mq Nh Oy Pk Qm
Mi Ne Og Pa Qt
Mp Ni Oq Pm Qo
Mh N I Op P o Qq
Ms N u Ov Py Qr
Rp Rz Ra Rf Rv Re Rt Rs Rg Rn Re Ro Rd Rk Ru Rm Ry Rw Rj Ri Rb RI R h Rx Rr RqSw Sv Si Sp SI Sn So Sr Sk St Sj Sq Se Su Sg Sb Ss Sf Sh Sx Sa Se Sd Sz Sy SmTh Tk Tj Ta Tm Tt Tr Te Tw Ts Tp Td Tx Ty Ti Tv Tc Tn Tl To Tf Tg Tq Tu Tb TzUx Urn Uk Uz Uj Ul Up Uh Uu Uq Uc Uy Uv U s Ur Ua Ud Ug Uw Uf Uo U i U b Ut Ue U nVd Vs Vf Vw Vr Vb Vg Vn Vp Ve Vi Vx Vu V m VI Vt Vq Vy V a Vv Vh Vz Vj Vk Vc VoWs Wd Wh Wv Wa Wz Wn Wj Wt Wb Wy Wi Wi Wq Wo Wp Ww Wr Wu Wm Wk We Wf Wg Wx W lXu Xj Xn Xg Xi Xp Xk XI Xq Xz X m Xv Xt Xb Xf Xc Xo Xx Xd Xs Xe X a X y Xr Xw XhYq Yh Yb Yy Yn Ye Ym Yd Ye Yg Yw Yu Yf Yt Yj Yi Yr Yv Yk Yz Yl Yo Yx Ya Ys YpZk Zr Zc Zu Zd Zw Zj Zq Zo Zx Zf Zb Za Zn Zp Ze Zh Zm Zi Zy Zz Zv Zl Zs Zg Zt.
BUBU BVBV BWBW BXBX
BYBY BZBZ CACA CBCBcc ccCDCDCECECFCF
CG C G CHCH CICI C JCJ CKCK CLCLCMCMCNCN
cocoCPCPc ocaCRCRcscsCTCT cucu CVCV
cwcw
CXCXCYCYczczDADADBDBDCDCDDDDDE DE
Ai Ae Ar At Aw Ah Ad Am Ab Af Aq Aj Az Ao Ac Au AI A a Av An As Ax A p Ay Ak AgBe Bq By Bb Bk Bv
Be Bg Ba Bw Bl Bz Bo Bx Bm Bs Bn Bi Bp Bh Br Bj Bu Bf Bt Bd Co Cl Cz Ce Cg Cr Cb Cc Cy Cp Cu Cn Cw Cf Ca Cx Ct Cd Cq Cj Cm Cs Ck Ch Cv Ci Dv Dw Do Dq Dz Di Da Dy Dm 01 On Dt Or Dp Oh Dk Du De Dd Dg Dd Of Os De Dj D b Eb Ea El Ec Eo Ey Ei Et Ef Ev Er Em Es Eh Eq Ez Ej Ee Eg Ep Ex Ew En Ed Eu Ek Fm Fg Fv Fr Fh Fq Fl Fp Fe Fa Fz Fk Fy Fe Fx Fo Ff Fs Fn Fu Ft Fd Fw Fb F i Fj Gg Gf Gq Gx Gc Gm G v Gb Gr Gy Gk Gh Gi Gl Gs Gj Gp Gu Ge Gd Gn Gt Go Gw Gz Ga Ht Hy Hw Hj Hf Ha Hq Hu Hh Hi Ho Hg Hk H e Hd H I Hz Hp Hs Hb Hv Hn H r He Hm H x I a lp Is lo I x Id le lk 11 I h I V lw I g l j lt I y li lb I z I r lq I u I m In I f I cJj Jx J t Jh Ju Jk Jz Jw Jn Jm Js Ja Jq J i Jy Jg Je Jo J r Jc Jp Jb J v J I Jd Jf Kz Kt Ku Kl Kb Kj K x Ki Ks Ko Kg Kf Kh Kr Kn Kd Km Kq Ky Kk Kw Kp Kc Kv Ka Ke Lo Le Le Lk Ls Lu Lf LX Li Ld Lb Lp Lm Lg LV Lh La Ll Lt Lq Ly Lr Lz Lj L n LW
swttch back to code groups
This is a copy of a code book produced by Government Code & Cypher School during WWII for British agents operating behind enemy lines.lt would have been printed onto silk and sewn into the lining of a jacket to avoid detection. ©Crown Copyright 2011
©Crown Copyright 2011
IAIA KBKB DCDC LDLD DEDE EFEF
VLVL
LDLD
QMQM
KEKE
HMHM
IFIF
AWAW
HMHM
HNHN APAP
Message 1
FQFQ
Message 2
cucu
Message 3
AHAH HPHP
Message4
cvcv HPHP AJAJ HOHO HLHL
NGNG NHNH PIPI UJUJ YKYK
HNHN HLHL OAOA ABAB LCLC
Message 5
HLHL IAIA KBKB DCDC LDLD DEDE EFEF NGNG NHNH PIPI UJUJ
YKYK VLVL QMQM HMHM FWFW HNHN FIFI HNHN HLHL IAIA RBRB
FCFC LDLD NENE HFHF NGNG FHFH ZIZI QJQJ HMHM DXDX
HNHN FIFI HNHN HLHL HAHA MBMB RCRC XDXD KEKE SFSF
EGEG KHKH WIWI UJUJ CKCK SLSL LMLM JNJN HMHM
©Crown Copyright 2011
Message 6
HLHL FAFA ABAB FCFC IDID BEBE ZFZF SGSG SHSH 0101 OJOJ
HMHM FIFI HNHN HLHL FFFF RGRG NHNH GIGI IJIJ QIQI xzxz
HMHM FUFU HNHN HLHL EKEK RLRL LMLM RNRN HOHO RPRP TQTQ
KRKR YSYS KTKT PUPU EVEV uwuw HMHM EAEA HNHN HLHL JAJA
UBUB ZCZC SDSD BEBE MFMF HMHM
Message 7
ASAS HNHN GFGF HNHN HLHL QAQA RBRB vcvc LDLD HMHM AHAH
HNHN FIFI HNHN HBHB HLHL OAOA MBMB KCKC KDKD HEHE DFDF
MGMG NHNH CICI HMHM DXDX HNHN GCGC HNHN HLHL FAFA ABAB
FCFC IDID BEBE ZFZF SGSG SHSH 0101 OJOJ YFYF ELEL
RKRK FLFL LMLM WNWN BOBO HMHM?
