Morskie Oko

What the code says

The Grid Point Code for Morskie Oko is #PWDKJ-9GMX7. It names a cell 2.56 m north to south and 2.23 m east to west, centred on 49°11'50.03"N, 20°04'15.01"E, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

What it is

Lake in the Tatra Mountains, Poland

Code

#PWDKJ-9GMX7

With a check character

#PWDKJ-9GMX7*6

Short form

9GMX7

Cell centre

49.197231, 20.070835

Cell size

2.56 m by 2.23 m

Region

Lesser Poland Voivodeship

Country

Poland

How to give this address

On a sign, a form or a delivery note

The whole code, #PWDKJ-9GMX7. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Lesser Poland Voivodeship

Morskie Oko 9GMX7: a name both people know, then the last five characters. They give back the exact code for anywhere within 4.0 km north or south and 3.5 km east or west of Morskie Oko. Further away the same five name somewhere else, which is why the whole code is what goes on a sign.

Copied by hand, or read over a phone

#PWDKJ-9GMX7*6. The character on the end catches any single mistyped symbol and any two neighbours swapped.

As a link or a square code

Open it on the map, move to the exact door, and add directions if the code needs help: "blue gate, second floor". The link and the square code carry them. Nothing is kept on this site.

From the city to the door

The first four characters name a cell about 40 km by 34.9 km here. Each one after that picks one of 25 inside the last, so the whole ten name a spot about the size of a doorway.

1. KPWDKMetropolitan area40 km by 34.9 km
2. JPWDKJDistrict8 km by 6.98 km
3. 9PWDKJ9Suburb1.6 km by 1.4 km
4. GPWDKJ9GA few streets320 m by 279 m
5. MPWDKJ9GMBuilding64 m by 55.9 m
6. XPWDKJ9GMXEntrance12.8 m by 11.2 m
7. 7PWDKJ9GMX7Doorway2.56 m by 2.23 m

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