CHAPTER X

The Consonant-Line Short Cut

_A Method for Attacking Difficult Cases_

By George C. Lamb

Several routine methods have been evolved for special use on the very

difficult “aristocrat” — that fascinating form of simple substitution

with word-divisions in which the message is of no importance whatever

and the encipherer’s full attention has been given to manipulation of

letter characteristics. Of the several such methods which have proved

workable over a long period of years, the author’s favorite is the

“consonant-line” method, the exact value of which has been tested in

a special analysis of 130 very difficult cryptograms. However, it

should be stated clearly that no method is a mechanical crypt-solver;

these devices merely serve to bring out clues which to the haphazard

worker are totally invisible. For discussion, we will consider an

example by M. E. Bosley which appeared as No. 19 Aristocrat in _The

Cryptogram_ for June, 1936. This is shown at Fig. 71.

The work must be initiated by isolating a small group of consonants,

and the problem of selecting these with certainty is one which for

years has baffled the shrewdest solvers of both the National Puzzlers’

League and the American Cryptogram Association. Many successful

solvers have based their selection on frequency alone, rearranging

the letters of a frequency count in the order of decreasing frequency

and marking off a section of low-frequency letters which will

presumably include only consonants. But the clever manipulator is

able to distort frequencies out of all resemblance to the normal

table, and here we will base our selection on _variety of contact_

— something which the constructor cannot successfully manipulate.

Figure 71

U W Y M N X K A E H X R B Z U V X M U W B Z O Y Z T W H V C X Y A

C Y A U Z D B R A H V K B A; Z W S V A H K U Z B K C, M S C X

C Y X B S, X V Z Y T R Y C X P.

Fig. 72 sums up the entire process. At (a) we have a list of contacts

taken in the order of appearance of the letters, and at (b) a

rearrangement of the cryptogram letters _in the order of decreasing

variety of contact_. Immediately above each letter is its “variety

count” and directly above this is its frequency figure. In this

set-up, a certain number of letters taken at the extreme right may

confidently be marked off as a group of consonants. As to just where

the line of demarcation may be set, recent analysis has shown that it

is safe to include 20% of the total variety-count. In this case, the

sum of all variety-figures is 104, and 20% of this, roughly, is 21.

If we begin with _P_ at the extreme right and add numbers backward

for a count of 21, we find that the line of demarcation falls between

_R_ and _C_. However, we have at this point four letters, _M_, _R_,

_C_, _S_, whose variety-count is uniformly 5, and any two of which

might have occupied the places of _C_ and _S_. To accept a vowel at

this stage would mar the effectiveness of our system, and either we

must discard all four of these letters, or we must find a means of

differentiation other than their variety of contact. At this point,

letter-frequencies come into play.

Examining the set-up just as we have it prepared at (b), note that

the two figures just above _M_ are 3-5. This is a “step-up” of 2

points. Note that just above _R_ we have the same two figures 3-5,

another step-up. Above _C_, we find the two figures 6-5, this time a

“step-down” of 1 point; and above _S_ we again find 3-5, a step-up.

According to years of observation, confirmed by investigation of

special cases, a vowel nearly always shows a tendency to step up,

while consonants are prone to step down. Thus among our four doubtful

letters, there are three, _M_, _R_, and _S_, of which one will

probably be a vowel. But the remaining letter, _C_, has the step-down

peculiar to consonants; and while a step-down of only 1 point would

not be definitely informative when found at the left end of the

set-up, it almost certainly indicates in the present position that

_C_ is a consonant. Thus, we are able to include seven letters,

_C T N E O D P_, in our group of “sure-fire” consonants, but have to

dispense with several points of our 21-count.

Figure 72

(a) List of Contacts

U6 W7 Y9 M5 N2 X10 K7 A7 E1 H6 R5 B8 Z6 V8 O1 T4 C5 D1 S5 P1

-W U-Y W-M Y-H M-X N-K X-A K- -H E-X X-B R-Z B- U-X -Y Z-W V-X -B W-V X-

-V U-B O-Z X-U H-R V-B Y- W-V B-A W-Z B- H-C Y-R -Y M-C

M-W T-H X-A -S V-M H-D Y-U A-V T-Y D-R Y-T H-K K- B-

A-Z Z-S C-A C-Y B-C R-H A-K K-A U- S-A S-X

K-Z C-X C- B- Z-K -W X-Z -Y

Z-T Y-B V-H X-S U-B Y-X

R-C -V V-Y

C-P

(The figures give the "variety-count," or number of different letters contacted. Roversals may be

indicated by circling letters. Note that in dealing with normal word-divisions, we may omit contacts

falling between one word and another).

(b) Basis for Primary Isolation of Consonant-Group:

Letter-frequencies: 8 7 6 5 4 4 6 5 4 7 3 3 6 3 2 1 1 1 1 1

VARIETY OF CONTACT: 10 9 8 8 7 7 7 6 6 6 5 5 5 5 4 2 1 1 1 1 (104)

X Y B V W K A U H Z M R C S T N E O D P

(c) (d) (e) (f) 3d word:

FIRST CONSONANT LINE SECOND CONSONANT LINE THIRD CONSONANT LINE

x . x x x

C T N E O D P C T N E O D P A U C T N E O D P A U W Z U V X M U W B Z

│ │ │ H

v│ vv│v vvv│v

x│xxxx x│xxxx x│xxxx (Vowel) (g) 7th word:

yy│yyy yyyy│yyy yyyyy│yyyyy (Vowel)

k│ kkk│ kkk│ x x x x x x . x

s│ s│ s│s Z W S V A H K U Z B K C

z│ z│zz zz│zz (Consonant)

│w │www │wwww (Consonant H) (h) 4th word:

│r r│r r│r

m│ mm│ mm│ x . x x x x x . . x

│h │hhh │hhhh O Y Z T W H V C X Y A

│b b│b bbb│bbb (Vowel) H

│ │u uuuu│u (Consonant)

a│ s│ (Consonant)

│ t│t (Consonant)

│

At (c) we have the beginning stage of the actual investigation, while

(d) and (e) are amplifications of the first stage. In these the

original consonants are used to determine other consonants,

progressing from stage (c) to stage (e). First, the original group of

consonants is set down on a sheet of paper, and the space below it is

bisected by the consonant-line. Consulting (a), we then find the

letters of this group one by one, and all contacting letters which

precede any one of them we set down on the left side of the

consonant-line, and all those which follow any one of them we set

down on the right side, always once for each time that the contacting

letter appears. Thus we have stage (c). While we do not often

encounter doubled letters in this form of cryptogram, it may be well

to say here that while a doubled letter would be counted among the

frequencies of letter appearance, its contacts with itself would not

be entered on the consonant-line. That is, a doubled _L_ would add a

frequency of 2 to the general count, but contacts _L_-_L_ would be

ignored.

At (d) we have the first step in amplification, for which we are

indebted to Chester A. Griffin. If there is any letter in the

cryptogram which _does not appear_ _at all in (c)_, such a letter is

practically sure to be another consonant. In this case we find _A_

and _U_, and in (d) these two letters have been added to the consonant

group and their contacts placed on the consonant-line. From this point

onward, the work becomes more tentative, and, as a detail of

operation, Mr. Griffin suggests that further additions to the

consonant-line be made in another color of lead; if it then becomes a

matter of necessity to erase, only the new letters will be included

in the erasing.

Figure 73

1 2 3 4

x x . x x . x x x . . x . x x x . x x x . x x . x x x . x x . . x

U W Y M N X K A E H X R B Z U V X M U W B Z O Y Z T W H V C X Y A

h h h

5 6 7 8

x . x x x x . x x . x x . x x x . x x . x x x . x x x . x .

C Y A U Z D B R A H V K B A; Z W S V A H K U Z B K C, M S C X

h

9 10

x . . . . . x x . x x . x . x

C Y X B S, X V Z Y T R Y C X P.

Further work includes the application of the “force method.” That is,

we turn our attention to the cryptogram itself, marking with a small

cross, or otherwise, all letters determined as consonants, and

placing a dot, or other indication, over all letters determined as

vowels. Some vowels become evident as early as stage (c), as here we

find both _X_ and _Y_ freely contacting our preliminary group of

consonants, and if confirmation is needed, a glance back at set-up

(b) will show that both of these are step-up letters. They may be

labeled vowels without hesitation.

As to consonants, there are two clear text letters, _h_ and _n_,

which, owing to their many contacts with other consonants, and

particularly with the low-frequency consonants (as in the digrams

_CH_, _GH_, _PH_, _WH_, _NG_, _NC_, _NK_, _NQ_, etc.), will often

show up clearly on the consonant-line. Of these two, _n_ will appear

largely upon the left side of the line, and _h_, the more reliable

of the two, upon the right side. Examining (d) we find _W_ and _H_

appearing exclusively on the right side of the line, and since,

under the rules of the game, no letter may be its own substitute,

we may assume here that _W_ represents _h_.

Further concerning _h_: An examination of the cryptogram shows that

_W_ has occurred twice as the second letter of a word, and the

second-position is particularly characteristic of _h_. Then, assuming

that _W_ actually does represent _h_, we have in the seventh word of

the cryptogram an intimation that the letter _Z_ is also a consonant

(since formations like AHEAD, AHA, are very rare, and seldom, if

ever, occur in long words). Thus, we have two new consonants, _W_

and _Z_, to be added to the consonant-line, with their contacts

below, extending operations to stage (e). If desired, the spotted

consonants may now be crossed off on the line itself, or merely

indicated as in (e). It seems evident from (e), confirmed by (b),

that _B_ is our third vowel, and the supposition can be strengthened

by inspecting the third cryptogram word, which, at this time, will

have appeared as in (f). It also appears from (e) and (b), confirmed

by the aspect of the tenth cryptogram word, that _R_ is a consonant.

Similarly, _M_, which, on three appearances, has twice contacted a

vowel, may be placed as a consonant. These two new consonants, _R_

and _M_, are added to the group of known consonants, and all of

their contacts are placed on the consonant-line. Our next victim is

_S_, evidently a vowel in spite of (e) because of its position in

the seventh cryptogram word (g), which, otherwise, must begin with

five consonants in succession. Presuming that a fifth vowel is to be

found, the same word suggests either _K_ or _H_ as the candidate.

The choice falls on _H_, according to the fourth cryptogram word (h);

and thus continuing the force method with one eye on the

consonant-line and the other on the cryptogram, the v-c formation of

the cryptogram is finally established as in Fig. 73. Actual

identification and solution follow the usual path of patterns,

cross-comparison of words, and inspiration, where all systems are

subordinate to the solver’s own perspicacity . . . or “cipher

brains.” Chapter IX has given some methods for identifying letters

from their characteristics, and also mentioned the preparation and

use of pattern-word lists.

Figure 74

A text prepared by RUFUS T. STROHM: H Y N W B D

│

OMRI, UNKEMPT HELP, BRISKLY SCYTHED BUCKWHEAT ee│eeee

t│t

CROP. PANICKY SKYLARK UPSHOT; BUMPKIN SHOWED w│

ss│

SMIRK. o│oo

l│l

Frequency: 8 6 5 4 5 3 4 5 4 6 5 3 4 4 4 3 2 3 2 c│

Variety: 10 8 7 7 7 6 6 6 6 6 5 5 5 5 4 4 4 2 1 kkk│k

K P E M R A C I O S H L T U Y N W B D u│uu

x x x x x x a│

i│i

│h

Amplification at step (d) adds P and M. │r

│

At this point, it might be well to mention the “vowel-line” method,

whose appearance was antecedent to that of the consonant-line. This

earlier method was conceived by Erik Boden, and in principle works

in reverse to the consonant-line method. Its set-up is like that of

the consonant-line except that vowels, instead of consonants, are

placed at the top. The contacts made by the determined vowels are

listed fore and aft as is done with the consonants in the

consonant-line method.

The vowel-line shows several letters by certain characteristics

. . . a letter appearing exclusively on the left might represent

_h_, and one appearing solely on the right can be taken for _n_. The

liquids, _l_ and _r_, straddle the line about equally. On the

supposition that you have located three vowels, the list of contacts

on the vowel-line will not include, or only rarely, any other vowels

as yet unidentified. A good suggestion is to use the consonant-line

as specified, and then follow up with the vowel-line, using the

vowels you have _definitely_ identified as such. The result will

be thus: The letter appearing exclusively to the right of the

consonant-line will appear solely on the left of the vowel-line,

and vice versa. If such appearances are noted, then you have spotted

_h_ and _n_ . . . . . identified as suggested in another part of this

chapter.

* * *

The workability of the consonant-line system in unravelling the

mysteries of the “Dizzy” crypt is best judged by making a series of

preliminary sheets from clear text. In Fig. 74, for instance, we have

the solution to one of the most skillfully manipulated cryptograms in

the collection of 130. This was prepared by Rufus T. Strohm as No. 17

Aristocrat of the April, 1932, _Cryptogram_. The total variety-count

is 104, 20% of which is about 21. The line of demarcation thus falls

in the group _H L T U_, each with a variety-count of 5 and no

step-down. _H_, with figures 5-5, could be grouped with the remaining

letters, giving us _H Y N W B D_ as consonants, with _P_ and _M_ to

be added at step (d). We thus include _Y_ among our sure-fire

consonants, and, in fact, it often is a consonant, but this is a

problem no solver has yet been able to overcome. However, the letter

_Y_ can usually be spotted by _position_. Note that except for _Y_,

every vowel here is a step-up letter.

Figure 75

A text prepared by J. LLOYD HOOD: D C M P B F Q W J K

│

GARGANTUAN MESTIZO ESCORTS JUNOESQUE NEGRO aaaa│aaaa

oo│ooo

WOMAN ADOWN NIGHT CLUB AISLE. DARK HUED │eeee

n│n

AMAZON HAD BEAUTIFUL LAPIS-LAZULI PENDANT. ss│

│l

Frequency: 14 9 8 6 10 7 6 6 6 4 4 5 3 3 2 3 2 2 1 1 2 1 1 i│i

Variety: 12 11 11 9 8 8 6 6 6 5 5 4 4 4 3 3 3 2 2 2 2 1 1 u│uuu

A E U I N O L S T G R D H Z C M P B F Q W J K r│

x x x x x x x x x x

Amplification at step (d) adds T, G, H, and Z.

The above two examples have represented the “tough” case. In Fig. 75,

where the text is the solution to a crypt by J. Lloyd Hood published

as No. 9 in the February, 1932, _Cryptogram_, we have the average

comparatively simple case. The total variety-count is 118, making the

isolation count about 23 and throwing the line of demarcation into

the group _D H Z_, where _D_ is the only step-down letter. Every

letter in the isolated group is actually a consonant, and step (d)

adds the letters _T G H Z_. On the consonant-line, _A_, _O_, and to

a lesser extent _U_, stand out clearly as vowels. _E_ might be

mistaken for _H_ until we apply the force method, while _I_ shows a

step-up of three points, in addition to whatever shows up on the

cryptogram. So up and at ’em! Edgar Allan Poe spoke truly when he

suggested that whatever the human mind can devise, the human mind

can also untangle.

* * *

Note: For additional methods of analytical attack on this kind of

cryptogram, the student is referred to the booklet “Cryptogram

Solving,” by M. E. Ohaver. This can be purchased directly from the

author (Columbus, Ohio) for twenty-five cents, or may be purchased

from the Frank A. Munsey Company. The textbooks of the National

Puzzlers League also include chapters devoted to the solving of

cryptograms; further information concerning these may be had by

writing to R. T. Strohm, 1328 E. Gibson Street, Scranton, Pa.

H. F. G.

50. By ROBO.

POUYH IBQUAV PUKO M EGUHAC MK KOH POUKH

OBLJH, KOHBSBGH GBBJHNHYK GHSHUNHC MA UAWLGR KB

BAH HRH POUSO SMLJHC IYUACAHJJ.

51. By SUE DE NYMME.

IDFURSF UJBDOC UJY NEGNXDNOWN IDFU FUN CXJKGDOC

JOY RGGXNKKDBN AJO IN WJOORF JGGXNWDJFN FUN

JZZJHDMDFL RZ FUN URONKF JOY CNONXRSK." --RXDNOFJM

JYJCN.

52. By I TAPPA KE.

B HCN FBA IOA CAXW PBXLSBW RAMC MPJ SCCHK.

BLMJI MPBM PJ RK IOAARAN COM CL MPJ SCCHK.

53. By TRYCHS.

ZAXABAPRSANL CDRLT ZNLZDLSERSANL NQ WNWFBRSANL, ZBNTD

FSABAPRSANL NQ SKD BRLU, TWEDRU NQ ALUFTSEV -- RBB

UEAXD HABU BAQD RHRV.

54. By DECIBEL.

KTJ UZ WJIWNLUFZA, RNUJW FV NYYWZQFBNUJCP ZAJ IZTWUG

KJJYJW UGNA FU NYYJNWV UZ MJ RGJA CZZDFAH FAUZ FU.

55. By B. NATURAL.

GBAM BP NCLBGMC: -- IBAM FDCCDIH HKULC BP DSBD, RBGE

BP BPTBLPL, AGDKC BP RBVSBULP, FLEMH VLEM BP BGGBPDBH.

SKHFLPT LNM BN BP RBHHDKCB, UDN BPTBUMHNBDP BP

NMPPMHHMM, NDDE FBVLCF BP EMPNKVEW.

56. By POSIUS.

SHTOADDCTUD TO SLIHCTICDP LHA XCZA IHALICAD TO SALFA

-- IEAR TUXR KCUB ICXX VA LHA DIHTUM AUTNME IT

KHALZ IEAP. -- ABPNUB KNHZA.

57. By LIGHTNING.

QFY. NZZDO, YOFLAVU HAVVOF NVVBCVSOY: "FOSAZO RBF

YBCZ AY RFBQ DNKO QFY. HCQZDAVU; BCK BR FOYZOSK

RBF WOF, A YCUUOYK YBCZ GO ONKOV AV YADOVSO!"

58. By BOUNCING BOB.

ACGLCRW BDHMW AHSXGE. "XI EHN TCYD DH WBDCFSXBO

GMWVXD OWMW, EHN ZNBD FW CD SWCBD WXRODE EWCMB

HSV CYV CGGHZACYXWV FE EHNM ACMWYDB."

59. By MISISEEG.

"PC KFJJW LF LPAS YG KF CYNE FH WFYJ LRCS,"

KPRI MYITS, RDOSLSJPLS PHLSJ-IRDDSJ KGSPASJ, PK ES

KSDLSDNSI CPD LF DRDSLW-DRDS WSPJK.

60. By EEGH.

EZVPJHOW HJWZB JZKRCHSPO HRRCHAOF OZAPEFE CSTF

JHWFBRSCCHB JBHVCSPL ZNFB RFBOSHP BAL VISCOW VFHBSPL

BAQQFB OIZFO.

61. By MERLIN.

ABDZYX UYDU ZA VYWZCE FBGH DBVTYCF SJJX YU RBVJ,

JKJC URBGER FBG LZAR URJF LJHJ.

62. By P. A. BEE.

"ZHN TCJP VDTK QHWWQF CLTDRP NDTX; ZHN CLGFP VDTK

QHWWQF WTF LTDRP NDTX." MSHLJ VTQJP ZB VCJFP LCR

GTCA WGF PQTX. LDBEW ITJFP VDTK PSLG HOFCP NDTX!

63. By SHORTY.

ABCDEFB XYGF HXYNEP OF QNHA BDRXA SYB SDPRFAZ

XYNHFKDSF KXY EDTFH VXCURDUR SNBUDANBF CBYNUP FIFBZ

KFFT YB AKY. BYNRX PFAYNB KYNEP ANBU AXF ABDVT.

64. By AH TIN DU.

ABCD ABEFGHJ KGLA: -- MKNNDOH PBOLA, FBPDE AMBNNGHJ,

ARBON PBOLA KHL KSSGTDA. PRDH NRDAD SKGE, NOW

XRKON KHL CGLHGJRN BGE.

T I P O F F S

For the benefit of the beginner a list of "tip-offs" are given below.

By comparing these groups, affixes and single letters it is possible

to find combinations which fit. For instance: ABC compared with ABCD,

ABGA, GA, DHA might result in "the", "then", "that", "at", "not", etc.

50. M, MK, KB, KOH, BAH, MA, PUKO.

51. FUN, IDFU, IN, IDFURSF.

52. B, MPJ, MPBM, PJ, RA-, -RAN.

53. AL-, -SANL, ZNL-, SKD.

54. UZ, FAUZ, FU, -FAH, -UFZA, FV, ZAJ.

55. BP, BP-, -NBDP.

56. IT, TO; IEAR, IEAP, AUTNME.

57. A, AV, -AVU; BR, RBF, RFBQ.

58. DH, CD, CYV, HSV; identify W through its frequency.

59. Note Pattern group; DRDSLW-DRDS.

60. SPL; O; EFE, word 5, last word.

61. Use of J, LJHJ, JKJC, -ZCE, ZA.

62. WGF, QHWWQF, WTF.

63. AXF, KXY, AKY; FIFBZ, YB.

64. -GHJ, KHL.

65. By KING SLY.

KING NERO PRVBY KHNC AVCL, FHYYVY CAVRDLK CHFN.

DEAF TFENGY IC; DHULY ERBV YCHTL. RIBY XHFF,

ERTFIKERD FHYYEL.

66. By THE SHADOW.

FJ CIGBHQ KDDH, LDQ FJJPHLC DXXCIGBHQ CAP. LDQQDHP

BCCAP: EBQMJ DXX; JPHLC KDDHEBQMJ BC QDHP.

67. By "33".

OXVXAKZDKY KYKOMSQXDI DIAB ABOQSXIZW ZWIALBV BVXQDO.

DOSQDOXASZ SZSOPXYQ YQSOQZBY BYQLBO, BOOSQXA XADIDAZSYQ.

68. By BUBBLES.

SBCWFK VWUKPI FCRSX PFNUKVSB. VWZGRE XZKRP ZBTFV.

WPGU SFGDJ DPERBFGP; VPIFZ TPASX JKPVA IKOBCU OGPRIV.

69. By DEAN RELAX.

XYZABCD ZEFZGBAZHDBHI JBDY KGLMZOCNHBDZ OBCXNMZGC XKPXBQA

KABO SPKXT ANHNXPBHBX FPZNXYGNBX FGBCAC.

70. By WEHANONOWIT.

ZYXWVXUTSRQUXO PXWVTW ZWNZXMXRTL XOOTKQXRQKT YNWRQUSORSWT:

ZWNJSUTL RXIXUTRSV, ONHTOQX, YTJTNVX, JQMQRXOQL, TR

UTRTWX, XJ QIPQIQRSV.

71. By CURLY.

WINIWKB OWBWO KRSRKVRV CRSRC NWEWN WCTPXVQBR XWKWXR.

AWKWARD TJJRKV VQPQVDRK DZKRWD. KRSRKRPD BWOVRC AKWEV,

GWKKQRB HE JCTTB DZKM BQSQBR.

72. By GALUPOLY.

LKMEGDIMJ, LHFABCGNKEF, LSNJJDI, LBMNKCJ, LBMEFJP MJR

LBTNIG GMVN RDSSDAXTK RNADLBNEDJI SCE AEFLKCIEMLBNE.

73. By SABIO.

WILD PANGRAMS RDMB ALCW EFFRRD HLFEM INJW. HAKNLLO

QLNTNW. INJW TFFRRD NIIRD UGUGVWG, WJGORTX RDMB

PAYWV XDOMAT ROZAVD.

74. By GINHUTS.

OLDMADE OVID SLATILK, ZLOMLX VWXYB, WERK SLMB LERVI,

NLI CLRO EVRS GKTV OTAHB ADGV TVWEY, YBLTO LISWR

RLDEWLEB.

75. By CIPHERMIT.

ABZYC DXXZBF, GYZBHVDX SZBHC, SGYBZTH VRZBS JKZBVXQ

FBZUB YDWZBY, WXZBYF, BZTRV WZBF, RDHCEBYMRZBS, FZBIB,

YBZHF, HBMEVZB; MRZBS YBVYZBIBF QZBXC.

76. By A. D. CODER.

ABCDEFB GHICD CJKLIC MNHHSJ OPCIQG MNJRBD PLFGSPLBR,

EILQ KICDTSCIR KICJRAC HL PLDRSJ GOFBBSIDQCNR.

77. By ROVING VIC.

MOCKMOCK ZPLY KPYO RSRI-RSRI FIPTSU FLIPFLIP. NERTS-NERTS

WICHWICH, SHPYSHPY TCYL, SILLSILL, MREX UPMD XRT.

APTS-ACTS WEPMWERM OLIREZU WPTRE MHIL.

78. By AMSCO.

ABWKGLWB ELTFTELHEG, SENGLMTUG FTELSABWKGLTF, LGBTGXGU

KHLCTHK DHTF BTOG HFATFH DGKESLTU.

79. By M. G. M.

ABCDECBFA, GHDIJKLF, HFBMD, NLHMO IEDHOBF OPPMGHR,

SMPDBIDBO UR VPHD, OMHGUMEONB, SPMDILFFEA.

80. By SIMPLICIUS.

VKJPE PBSCKZ RLHRTGM HJALCGSBR TLCG; RKPHCLRHM

NLMHGJCGAAKMBM; LIUJCGM NJCMJBH KQ CKZGPHM.

81. By KRIPTOBENS.

DYFR SWCX VHZS WMLB TMLB CZYO PHUT WKHT, JKOS

MOSY PHOB, NHTK IKAR AMLW WHCU, DUKT! LMSR LYZV

ECMQ XKOS, DMOT VHNK, VMLB, PUCK! VHDK YZKO, GHLB

UYVS! WHAT BOYS, YOUR LUCK!

82. By PHONEY.

ABCDE FEGHI, GEJBI; KLBGI MDCEH NDEST IEKRD DREIN

UMELV. TLHNR RGHBD HLWJI SRMHN, VESTI JHEKB, XBDJI

LDENB YRDIB; PDRGV ZRDSI, BKLWNI OEDJF WYBEN. CEGOF

EOLBM.

83. By ARROWHEAD.

ABCDEF GHIJK, LMN OPQR, STU VWXY. ZWHTAJ, FBIDEB

PEWCUH VHAXMP, HJQD BHXEJ XHUTA, EQGIF GTJE IHWREJMP.

84. By THE GRIFFIN.

TWDOIUESMA DMPOIREXYK TRXAWEKMLI XRYMUOLSED AMIEXKUGNO

MUTRYOLSDH YMKAGRXEIO GZPRKAESOY WHTOXZGDMA TDEHBXMIWS.

85. By SOUR PUSS.

OYESK PACHYDERMS AOPFL UXFD MHZOY XFBR PLMBS OZPL.

ZUFPLBAGH LBYCF QZDYPX YDLM GZQFBD ADLYJ RZUD.

86. By LIVEDEVIL.

PREVIOUSLY BDACL YOEL YFOCG, FLHCY, EHJJPOVLB GHKRCL,

UCOFMJ APCR EONQ MOIQCHBAPJ.

87. By NEOTERIC.

RXUGUZLQTVFR, CNSQRLQTVFR OTDALN RB MVFTQQRX QSTQ.

TFXUTSLCGSFZJ FTVXLVQNZ FTOSQ GUFLVOU DRTQDRX TRF.

88. By ZERO.

KROLGDB FURZGV ZDWFK BRXWKV VSULQW DORQJ GLUW WUDFN.

VZDUWKB FXEDQ MXQLRU MXELODQWOB ZLQV.

89. By JOKEL.

JPLX VUNKOM MLKDUB FUGHVP VKHCX VUPD FWHMVP; LQUMDPBV,

VWJKPLMNB; ULKFUGIKB, QKDHGP; VUXPLCMJ, AMJPVUD.

90. By LEE ANDER.

CLOUDY BERG-SLHVEC BECTR, UI BECT, FVRAKMY MGRAK-HVEC

BUDNR-VRGL BUZCLI EY BDAAEDA. NEKYDNLC; GEESE PUNFUY;

BETT ESTDNLC.

91. By TRYIT.

LSYKCTLSTRYITAB, MCDSLMLE, ZSRBWLX IUOLSC UWLAC BMTUZYLAB

YRUYHU GTKVBC KPMDSCASWUWVD PLANKX UCLM WSKCHBXU WVUBCB

VUITSRPLBD STUMBLER JSLP BHLMDVXU.

92. By DIZZY.

ABCDEFG, DZEIBJK LMFDBCN, MNTLYEA PRZBGSF TSBIURP

IECLSBJ, UKFIZBS, PNFLARB; EVLKZRO PWELMBK VTXPLNZ

TPXOBZG.

93. By ZANYCODAB.

ODZNERITFNM VNDRR BNOFDSK PNIODRHE EVMCDTIS EVANZTOS

FNQRZO HCRI PVEOHE. RZROHIK, URFRES CNISLVZTF AZSBE

HGAZNLS. QNCTK OZRUNI ASFRGSE GTERLVITEO.

94. By I. D. CIPHER.

JBMDVKJVMBTD AWTHVQBLTQV VGLBQWFXH FXBJWTHVQNM VCWYBLGX.

BDGWCDWKZ, DKWYFWKMB RNMBJCDPCY, GZCBQWFDP.

95. By NEON.

CDFGH, JHKLM NPQLR, SDTVW XMZDW PATVF LRXBV CDTWE

QRIGH. TKHFO XRDIP NHILW EFDQL, JMUVW MRPES, VHFAW

NRAPW.

96. By TWISTO.

FJKXZA, ETXZQ, ZCHUQP QPZUF, ZLLKUPTW QBTJPZ EDGN,

PQZM BTJMN QPZDU, MTUIWXJ ZXGJUW ZPFEWU DUQBTW

IBTQUWHJX.

97. By NUMERO.

BCBDBEBFC GHIBEK UGVBQW BRWPF OPFQR STDGPBQ -- EFHIKA

YBQWYTZW BLGUGZR LKFQCGZUZGTHCYKZI.

98. By WHIZZ BANG.

PGZPAPBPGZP? AZFHIDEPXOA AFISTP YOEN BPYC PBFISX PJDOBK

PKLPOT. BWXDYOPA AFEYWI LOIN BFKTDEOP TWRI WFDI. BWLF

BLPZR ESPAD HZDJOBWK ZWHPKI.

99. By INVICTUS.

PDOKX ZEVR MOLTA. MPNDR-NEX NPKWTM FACHX PSGTLUR

PGPGEVU CPUFAD. CZBPAQEUTCV TAMR TAOLPG BPVUC. HAEUWD

KONRUYC RBENZCMR MVEYOR.

Elementary cryptanalysis · 第 6 / 10 章