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The Great Singapore Puzzle Mystery Cache

Hidden : 9/27/2015
Difficulty:
2.5 out of 5
Terrain:
1.5 out of 5

Size: Size:   micro (micro)

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Geocache Description:

How well do you know Singapore? Perhaps you would like to put this knowledge to the test and earn yourself a cache find. As with a typical unknown cache, the published coordinates hold nothing of interest. Search for all the required information and you’ll find the true coordinates for the cache.


Singapore has made a name for itself as a thriving trading port in the 19th century. Over the years, Singapore has undergone much change and through many booms and busts. Let’s see exactly how much more you can learn about Singapore using your powers of investigation.

These are the values that you seek:

18AB = The year Singapore was founded by a trader who was looking for a strategic place to build a new port

CD = The first two digits of Singapore’s current population (as of 2014, rounded to the nearest 100,000).

For example, if Singapore’s population was 6 876 543, then this value rounds to 6 900 000, and hence, CD = 69.

EF = The last two digits of the total number of buildings in Singapore.

For example, if the total number of buildings is 9 876 543, then EF = 43

G = The digit sum of total number of banks based in Singapore.

For example, if the total number of banks is 94, then  9 + 4  = 13, followed by 1 + 3 = 4 = G  

H = The first digit of the total number of hotels in Singapore.

For example, if there are 103 hotels in Singapore, then H = 1

The final coordinates are:

N01° (10+A+B).(C)(D)(2F+G)

E103° (40+A+B).(E+F)(G+2H)(C+E+G)

Some Important Notes:

  1. Try as much as possible not to spoil the solution for this cache either deliberately or inadvertently in your logs.  I don’t normally impose this restriction onto my puzzle caches, but this one is… a little special. When you arrive at the solution, you’ll understand the need for the secrecy.
  2. The required values have been verified across multiple sources, and there should be no disputes about the accuracy of the information. If you do have issues, let me know (but I suspect that my answer will often be “you’re looking in the wrong place”).   

Additional Hints (Decrypt)

Chmmyr uvag: Fghpx? Creuncf lbh fubhyq ybbx sbe n jnl gb haqregnxr 'na nzovgvbhf qvt' sbe shegure vasbezngvba.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)