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”
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.