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….to skin a cat (Posted on 2015-11-09) Difficulty: 3 of 5
The puzzle “Noughts and Crosses” was published in a book intended to train the reader towards his application for Mensa membership.
Basically three upper rows of a 4x4 matrix were given (see below) and the solver was requested to “fill the bottom line of the matrix with a combination of noughts and crosses that logically completes the matrix” (exact quote):

X O O X O X X X X O X X ? ? ? ?

I have found several logical answers in addition to the single “official” answer provided in the book.

I request you solvers to follow suit and to justify all your choices.

Source: will be provided later.

No Solution Yet Submitted by Ady TZIDON    
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re(3): The one that seems obvious | Comment 4 of 5 |
(In reply to re(2): The one that seems obvious by Ady TZIDON)

From what I understand, Noughts and Crosses is in fact the name that Tic-Tac-Toe goes by in the U.K., so if the book gave the puzzle that title, it would certainly point in the direction of this being a 4x4 version of that game, by whichever name it is called.
  Posted by Charlie on 2015-11-09 21:54:27

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