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Set problems (Posted on 2004-05-12) Difficulty: 3 of 5
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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Question Try This | Comment 10 of 13 |
Shape = c : circle, s : square,t : triangle color = r : red, b : blue, g : green fill = e : empty, h : half, f : filled number = 1,2,3 solution..........16 cards 1 :- c,r,e,1 2:- c,r,e,2 3:- c,r,h,1 4:- c,r,h,2 5:- c,b,e,1 6:- c,b,e,2 7:- c,b,h,1 8:- c,b,h,2 9:- s,r,e,1 10:- s,r,e,2 11:- s,r,h,1 12:- s,r,h,2 13:- s,b,e,1 14:- s,b,e,2 15:- s,b,h,1 16:- s,b,h,2
  Posted by Leigh Lillico on 2004-08-07 05:10:13
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