Cipher Challenge
Postmarked Tuesday
Introduction
A practical family letter whose ordinary errands gradually reveal a significant change at home.
Count overlapping units and compare their distributions.
Live output583 overlapping units
| Unit | Count | Share | Rank |
|---|---|---|---|
| H | 73 | 12.5% | 1 |
| Y | 49 | 8.4% | 2 |
| O | 47 | 8.1% | 3 |
| J | 45 | 7.7% | 4 |
| N | 45 | 7.7% | 5 |
| A | 43 | 7.4% | 6 |
| K | 35 | 6.0% | 7 |
| W | 30 | 5.1% | 8 |
| F | 27 | 4.6% | 9 |
| G | 26 | 4.5% | 10 |
| D | 24 | 4.1% | 11 |
| M | 19 | 3.3% | 12 |
1
QHON OGVO, YWH UONPHF AWJDFQ
24
ONNKRH LHMJNH YWKA FHYYHN,
46
SWKPW MHHFA FKBH O MOKFDNH JM
70
UFOGGKGI LDY O ADPPHAA MJN YWH
95
UJAYOF AHNRKPH. KGAKQH ONH YWH
120
LFDH LJSF VJD OQXKNHQ, YSJ
141
UOPBHYA JM ADGMFJSHN AHHQA,
164
OGQ YWH UWJYJINOUW MNJX JDN
187
YNKU YJ YWH CDONNV. SNOU YWH
209
LJSF OIOKG LHMJNH AYJNKGI KY; K
234
DAHQ JFQ GHSAUOUHNA, OGQ YWH
257
KGB XOV NDL JMM. YWH AHHQA ONH
280
MNJX YWKA VHON’A YOFFHAY
300
UFOGYA, YWJDIW YWH AUONNJSA
323
PJGQDPYHQ OG OIINHAAKRH
344
WONRHAY JM YWHKN JSG. K WORH
366
MKGOFFV NHUOKNHQ YWH LOPB
388
IOYH. KY GJS PFJAHA AJ MKNXFV
411
YWOY RKAKYJNA XOV OAADXH SH
434
ONH WKQKGI YNHOADNH. SH ONH GJY,
459
DGFHAA VJD PJDGY YWH FOAY EON
483
JM UFDX EOX. SNKYH SWHG VJDN
505
PJDNAH LHIKGA. YWH BKYPWHG
527
YOLFH MHHFA YJJ CDKHY SKYWJDY
552
VJDN LJJBA PJRHNKGI WOFM JM KY.
577
FJRH, QOQ.
Compare word shapes, terminals, contacts, and reversals.
Live output131 words · 98 distinct
| Word | Pattern | Count | Start positions |
|---|---|---|---|
YWH | 1.2.3 | 12 | 9, 92, 117, 167, 193, 206 +6 |
JM | 1.2 | 5 | 68, 148, 351, 483, 573 |
ONH | 1.2.3 | 4 | 114, 277, 434, 453 |
KY | 1.2 | 3 | 231, 392, 575 |
LHMJNH | 1.2.3.4.5.2 | 2 | 30, 218 |
YWKA | 1.2.3.4 | 2 | 36, 284 |
MHHFA | 1.2.2.3.4 | 2 | 51, 532 |
O | 1 | 2 | 60, 81 |
LJSF | 1.2.3.4 | 2 | 124, 209 |
VJD | 1.2.3 | 2 | 128, 465 |
AHHQA | 1.2.2.3.1 | 2 | 159, 272 |
OGQ | 1.2.3 | 2 | 164, 251 |
Terminals
| Sequence | Initial | Final |
|---|---|---|
YW | 17 | 0 |
YWH | 13 | 12 |
WH | 0 | 12 |
NH | 1 | 8 |
JM | 6 | 5 |
ON | 5 | 2 |
GI | 0 | 4 |
HQ | 0 | 4 |
KGI | 0 | 4 |
OG | 4 | 1 |
ONH | 4 | 4 |
PJ | 4 | 0 |
Contacts
| Letter | Left | Right |
|---|---|---|
A | 13: H 6, A 4, K 3, N 3, O 3, F 2, G 2, J 2, Q 2, S 2, Y 2, B 1, D 1 | 8: H 6, Y 5, A 4, D 4, K 3, U 2, J 1, W 1 |
B | 4: P 2, G 1, J 1, K 1 | 3: H 2, A 1, K 1 |
C | 0: — | 1: D 2 |
D | 7: J 10, A 4, F 3, C 2, L 1, N 1, Q 1 | 12: N 6, G 3, P 2, X 2, Y 2, A 1, F 1, H 1, I 1, K 1, L 1, O 1 |
E | 0: — | 1: O 2 |
F | 13: O 4, H 3, U 3, F 2, L 2, S 2, D 1, G 1, J 1, K 1, M 1, P 1, X 1 | 10: H 4, D 3, J 3, O 3, A 2, F 2, Q 2, V 2, K 1, M 1 |
G | 7: K 9, O 6, D 3, H 2, G 1, J 1, S 1 | 13: I 4, Q 3, A 2, J 2, Y 2, B 1, F 1, G 1, H 1, K 1, M 1, O 1, V 1 |
H | 19: W 15, N 13, A 6, R 6, F 4, H 4, Y 4, L 3, P 3, S 3, B 2, M 2, Q 2, D 1, G 1, K 1, U 1, V 1, X 1 | 13: A 6, Q 6, N 5, H 4, F 3, O 3, Y 3, G 2, M 2, I 1, K 1, S 1, U 1 |
I | 6: G 4, O 2, D 1, H 1, I 1, J 1 | 5: N 2, O 2, I 1, K 1, W 1 |
J | 13: Y 5, P 4, V 4, W 4, F 3, L 3, M 3, N 3, G 2, J 2, A 1, S 1, U 1 | 13: D 10, M 6, S 6, N 5, A 2, J 2, R 2, X 2, Y 2, B 1, F 1, G 1, I 1 |
K | 15: N 5, W 4, A 3, O 3, M 2, R 2, B 1, D 1, F 1, G 1, H 1, I 1, Q 1, S 1, X 1 | 11: G 9, Y 7, N 4, A 3, P 2, Q 2, R 2, B 1, F 1, H 1, U 1 |
L | 2: D 1, O 1 | 5: H 3, J 3, F 2, D 1, O 1 |
Reversals
HN 5 · NH 13NO 2 · ON 12AH 6 · HA 6GK 1 · KG 9JM 6 · MJ 3KN 4 · NK 5HQ 6 · QH 2JN 5 · NJ 3OU 3 · UO 5AY 5 · YA 2DN 6 · ND 1FH 4 · HF 3A
B
Plain
ABCDEFGHIJKLMNOPQRSTUVWXYZThe cipher alphabet must contain exactly 26 letters.