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 Set problems (Posted on 2004-05-12)
In a version of the game of set, cards with shapes on them are dealt out and each has four characteristics:

Type of shape (Circle, Square, or Triangle)
Color of the shape (Red, Blue, or green)
Fill type (Empty, Half filled, or Completely filled)
Number of the shape on the card (1, 2 or 3)

A "set" is defined as a three card subgroup of the cards "in play" such that for each of these four individual characteristics are either all the same, or all different. (The cards could be all different on one characteristic and be same on another.)

What is the greatest number of different cards that can be "in play" such that there is no subgroup that can be designated a "set"?

 No Solution Yet Submitted by Gamer Rating: 4.5000 (4 votes)

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 re: not sure if i understood this correctly, but | Comment 2 of 13 |
(In reply to not sure if i understood this correctly, but by GOM)

There's nothing specifically in the rules that rules out the possibility of duplicate identical cards (say two CRE1 cards).  I don't know if this affects the answer given of 16.
 Posted by Charlie on 2004-05-12 15:15:10

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