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Select the right subset (Posted on 2020-04-10) Difficulty: 4 of 5
To list the 4 countries - CHINA, CHAD,CANADA & CHILE you need only 8 distinct letters: A,C,D,E,H,I,L & N.

Find a 10-member subset of ABC such that enables to create the longest list of currently existing countries.

The following restrictions apply:
- Only UN current official members
- English spelling of names e.g. Spain, not Espana
- No abbreviations!

Google's list recommended as database.

No Solution Yet Submitted by Ady TZIDON    
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Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: max found by computerCharlie2020-04-10 11:45:01
re: max found by computerCharlie2020-04-10 11:34:42
Some Thoughtsmax found by computerCharlie2020-04-10 11:28:58
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