You seem to confuse arrays with references to arrays (short arrayrefs). Reading perlreftut, perllol (lists of lists) and perldsc should clear up things.

For example: 

my @row = $bigarray[$count];

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doesn't do what you want. Since $bigarry[$count] returns an arrayref, @row will contain only one value (that is, the reference). You'll probably want this instead: 

my @row = @{$bigarray[$count]};

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In reply to Re: Shifting of 2D array slices by moritz
in thread Shifting of 2D array slices by Ryuchi

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