It seems to work for me (cause I artificially made it to work). Some possible bugs are that your increment $i++; works only if expression is true - but this maybe what you intend to do as well. It would be helpful if you could post some errors: 
#!/usr/bin/perl
use strict;
use warnings;

my @incorrect;
my @correct = qw / 1 2 3 4 5 6 7 8 9 10 /;
my $guess = 1;
my $i = 0;
if ($guess eq $correct[$i]) { # if guess is correct, reply   
    print "You Rock!\n";
    $i++;
} 
else { 
print "You Suck!\n"; # if incorrect, reply and save answer to be calcu
+lated 
@incorrect = (@incorrect, $guess);
}

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In reply to Re: Control Structure problem, mistake can't be found by eosbuddy
in thread Control Structure problem, mistake can't be found by koolgirl

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