Can you fill this grid ? (Version 2.0 )
714523 191303 165088 213443 573211 91?12?
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The missing numbers are
6 and 7.
To find them, observe that
on row $k$, the two digit number in the middle of the row is obtained by adding the two digit numbers to the left and right, adding $4\times(-1)^k$ to their sum and then dividing by 2.