Have you considered using the 'modulus' operator: 
#!/usr/local/bin/perl5.8.8 -w

for $x ( 1.. 64 ){
   printf "%2d ", $x;
   printf "\n" if (($x % 8)==0);
}

[401] ; ./test.pl
 1  2  3  4  5  6  7  8 
 9 10 11 12 13 14 15 16 
17 18 19 20 21 22 23 24 
25 26 27 28 29 30 31 32 
33 34 35 36 37 38 39 40 
41 42 43 44 45 46 47 48 
49 50 51 52 53 54 55 56 
57 58 59 60 61 62 63 64

[download]

In reply to Re: Chess Board Single Loop by bigsipper
in thread Chess Board Single Loop by xantithor

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