It is #EnigMarch, and each day the excellent EnigMarch people post a prompt word; then puzzle nerds try to design puzzles around that word. (Today's word is neither.)
"Neither snow nor rain nor heat nor gloom of night stays these couriers from the swift completion of their appointed rounds" is not an official creed of the United States Postal Service. Still, it's impressive that they get out to so many places which you might specify as ZIP Codes™:
| _ _◯_ _ | 56734 | Lake Bronson, MN |
| _ _ _ _◯ | 12435 | Greenfield Park, NY |
| _ _ _◯_ | 92378 | Rimforest, CA |
| _ _ _◯_ | 13677 | Pyrites, NY |
| _ _ _ _◯ | 94237 | Sacramento, CA |
| _ _◯_ _ | 38564 | Granville, TN |
| _ _ _ _◯ | 53278 | Milwaukee, WI |
| _ _ _ _◯ | 12245 | Albany, NY |
| ◯_ _ _ _ | 16228 | Ford Cliff, PA |
| _◯_ _ _ | 63151 | Saint Louis, MO |
| ◯_ _ _ _ | 87525 | Taos Ski Valley, NM |
| ◯_ _ _ _ | 18416 | Elmhurst, PA |
| ◯_ _ _ _ | 15332 | Finleyville, PA |
| _ _◯_ _ | 47385 | Spiceland, IN |
| ◯_ _ _ _ | 62882 | Sandoval, IL |
| _◯_ _ _ | 14454 | Geneseo, NY |
| ◯_ _ _ _ | 94239 | Sacramento, CA |
| _◯_ _ _ | 41274 | Wittensville, KY |
| _ _ _ _◯ | 47983 | Stockwell, IN |
The circled letters spell
◯◯◯ ◯◯◯◯◯◯◯ ◯◯◯◯ ◯◯◯◯ ◯◯◯,
which is of course
_ _ _ _ _ _ _ _, _ _
which of course lets you know
that "Neither snow nor rain nor heat nor gloom of night stays
these couriers from the swift completion of their appointed rounds"
is neither the official USPS creed nor its _ _ _ _ _.
Hints and solution, rot13'd:
Lbh jvyy znxr n svir-yrggre jbeq sebz rnpu MVC pbqr. Sbe rnpu qvtvg, gnxr gur Agu yrggre bs gur MVC pbqr'f cevznel pvgl.
Sbe rknzcyr, sbe 56734 Ynxr Oebafba, 5=O, 6=E, 7=B, 3=X, 4=R, naq gung fcryyf OEBXR
Fbzr bs gurfr svir-yrggre "jbeqf" ner cerggl fxrgpul, ohg ubcrshyyl lbh jvyy crefreirer naq abgr qbja gur pvepyrq yrggref abarguryrff.
Urer'f gur qngn:
b oebxr 56734 Ynxr Oebafba, ZA a terra 12435 Terrasvryq Cnex, AL r gvzrf 92378 Evzsberfg, PN f cerff 13677 Clevgrf, AL r genpr 94237 Fnpenzragb, PN i nyiva 38564 Tenaivyyr, GA r nyvxr 53278 Zvyjnhxrr, JV a nyyna 12245 Nyonal, AL s sybbs 16228 Sbeq Pyvss, CN v yvfgf 63151 Fnvag Ybhvf, ZB i ivfnf 87525 Gnbf Fxv Inyyrl, AZ r rgure 18416 Ryzuhefg, CN s sraav 15332 Svayrlivyyr, CN v pnvar 47385 Fcvprynaq, VA i inyyn 62882 Fnaqbiny, VY r trrfr 14454 Trarfrb, AL g genpg 94239 Fnpenzragb, PN j gjvfg 41274 Jvggrafivyyr, XL b pryyb 47983 Fgbpxjryy, VA
Gur pvepyrq yrggref fcryy bar frira svir svir gjb. Bu url, vg'f nabgure mvc pbqr.
Bar frira svir svir gjb unf gur cevznel pvgl Zbhag Wbl, CN.
Bar=Z, Frira=B, Svir=G, Gjb=B; fb gur svany nafjre vf zbggb.
