Cipher Challenge
Frequencies Without Certainty
Introduction
An introductory Aristocrat tutorial focused on using frequency evidence without turning it into automatic substitutions.
Count overlapping units and compare their distributions.
Live output589 overlapping units
| Unit | Count | Share | Rank |
|---|---|---|---|
| S | 78 | 13.2% | 1 |
| G | 51 | 8.7% | 2 |
| C | 49 | 8.3% | 3 |
| H | 47 | 8.0% | 4 |
| D | 43 | 7.3% | 5 |
| Q | 41 | 7.0% | 6 |
| P | 38 | 6.5% | 7 |
| A | 36 | 6.1% | 8 |
| N | 24 | 4.1% | 9 |
| T | 24 | 4.1% | 10 |
| K | 22 | 3.7% | 11 |
| J | 18 | 3.1% | 12 |
1
NSGGSP EPSOYSDKV AC SXATSDKS,
26
DHG Q XSPTAKG. AD NHDF SDFNACB
50
GSIG, S AC HEGSD KHZZHD,
68
EHNNHUST RV NSGGSPC CYKB QC G, Q,
93
H, A, QDT D, RYG CBHPG JQCCQFSC KQD
118
TAEESP CBQPJNV RSKQYCS HE
140
CYRLSKG QDT CGVNS. KHYDG
160
EPSOYSDG KAJBSPGSIG CVZRHNC,
185
GBSD KHZJQPS GBSZ UAGB UHPT
208
JQGGSPDC QDT JHCAGAHDC. Q
229
KHZZHD HDS-NSGGSP UHPT AC
250
NAMSNV Q HP A. Q EPSOYSDG CVZRHN
275
QJJSQPADF THYRNST ZQV
294
CYFFSCG S, N, H, HP C, TSJSDTADF HD
318
AGC DSAFBRHPC. QNCH SIQZADS
341
KHZZHD JQAPC QDT GPAJNSC
362
PQGBSP GBQD ACHNQGST KHYDGC.
386
AE Q JPHJHCST S JPHTYKSC
406
CSXSPQN JNQYCARNS SDTADFC, AG
431
FQADC CYJJHPG. AE AG TQZQFSC
454
SXSPV CBHPG UHPT, PSKHDCATSP
478
AG. YCS EPSOYSDKV GH FSDSPQGS
502
KQDTATQGSC QDT PQDM FYSCCSC,
526
DHG GH NHKM GBS QNJBQRSG GHH
549
SQPNV. GBS SDGAPS ZSCCQFS ZYCG
574
KHDEAPZ GBS KBHAKS.
Compare word shapes, terminals, contacts, and reversals.
Live output125 words · 95 distinct
| Word | Pattern | Count | Start positions |
|---|---|---|---|
Q | 1 | 6 | 29, 92, 228, 256, 260, 388 |
QDT | 1.2.3 | 5 | 95, 147, 216, 352, 512 |
AC | 1.2 | 3 | 16, 55, 248 |
S | 1 | 3 | 54, 301, 397 |
KHZZHD | 1.2.3.3.2.4 | 3 | 62, 229, 341 |
UHPT | 1.2.3.4 | 3 | 204, 244, 464 |
AG | 1.2 | 3 | 429, 445, 478 |
GBS | 1.2.3 | 3 | 535, 554, 581 |
EPSOYSDKV | 1.2.3.4.5.3.6.7.8 | 2 | 7, 483 |
DHG | 1.2.3 | 2 | 26, 526 |
H | 1 | 2 | 93, 303 |
A | 1 | 2 | 94, 259 |
Terminals
| Sequence | Initial | Final |
|---|---|---|
KH | 7 | 0 |
GB | 6 | 1 |
SC | 0 | 6 |
DT | 0 | 5 |
GBS | 5 | 3 |
QD | 5 | 2 |
QDT | 5 | 5 |
SP | 0 | 5 |
AC | 4 | 3 |
AG | 4 | 3 |
CY | 4 | 0 |
EP | 4 | 0 |
Contacts
| Letter | Left | Right |
|---|---|---|
A | 13: T 5, C 3, G 2, N 2, P 2, Q 2, E 1, H 1, K 1, S 1, U 1, X 1, Z 1 | 12: D 6, G 6, C 5, E 3, P 3, T 3, J 2, K 2, F 1, H 1, M 1, R 1 |
B | 5: G 8, C 4, J 2, K 2, F 1 | 4: S 7, H 3, Q 3, R 1 |
C | 11: S 9, A 5, D 4, Y 4, C 3, P 3, G 2, H 2, N 2, Q 2, F 1 | 9: S 5, B 4, Y 4, A 3, C 3, G 3, H 2, Q 2, V 2 |
D | 6: S 12, H 9, Q 9, A 6, Y 2, P 1 | 9: T 8, F 5, G 5, C 4, S 4, K 3, H 2, E 1, M 1 |
E | 4: A 3, H 2, D 1, E 1 | 6: P 4, A 1, E 1, G 1, H 1, S 1 |
F | 5: D 5, Q 3, A 1, F 1, Y 1 | 7: S 5, B 1, C 1, F 1, N 1, Q 1, Y 1 |
G | 12: A 6, D 5, Q 5, G 4, P 4, S 4, C 3, H 2, I 2, K 2, E 1, Y 1 | 8: S 10, B 8, G 4, H 3, A 2, C 2, P 1, V 1 |
H | 15: K 8, B 3, G 3, J 3, N 3, R 3, U 3, Z 3, C 2, D 2, P 2, A 1, E 1, H 1, T 1 | 14: D 9, P 9, N 4, Z 4, Y 3, C 2, E 2, G 2, A 1, H 1, J 1, K 1, T 1, U 1 |
I | 1: S 3 | 2: G 2, Q 1 |
J | 9: A 2, J 2, H 1, N 1, P 1, Q 1, S 1, Y 1, Z 1 | 7: Q 4, H 3, N 3, B 2, J 2, P 2, S 2 |
K | 5: D 3, S 3, A 2, Y 2, H 1 | 8: H 8, Q 3, S 3, B 2, G 2, V 2, A 1, M 1 |
L | 1: R 1 | 1: S 1 |
Reversals
PS 7 · SP 12DS 4 · SD 12CS 5 · SC 9GS 10 · SG 4DH 2 · HD 9HP 9 · PH 2HK 1 · KH 8AC 5 · CA 3AG 6 · GA 2AT 3 · TA 5CY 4 · YC 4NS 7 · SN 1A
B
Plain
ABCDEFGHIJKLMNOPQRSTUVWXYZThe cipher alphabet must contain exactly 26 letters.