Let be an nxn,$ n\geq 3$ grid colored in two colours,black and white in the following way:on the secondary diagonal we have black squares and in rest white squares.we call "transformation" changing a colour on a row or column from black to white and inverse.Can we reach at a grid with 2 identical rows after a finite number of transformation?
What if we have a permutation of the black colours such that there is exactly one black square on each row and each column.
Let there be math; a new place different from my mind where ideas are written down,and a possible witness for a big discovery
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