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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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Some Thoughts The one that seems obvious | Comment 1 of 5
and my guess must have been the official solution, is all O's, as the game must finish with as many O's as X's.

Or perhaps with 3 O's and one blank, before the last move has been made; just don't have the blank at the bottom-right, as otherwise X would have taken that spot to win.

  Posted by Charlie on 2015-11-09 12:38:10
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