broomduster and toolic provided the solution, I just want to emphasize what broomduster said in another post in this thread: Learn to use print to debug your program.

If you had printed both of the comparision operands, $guess and $correct[$i] (and whatever else seemed interesting), you could have solved the riddle by yourself. And as you surely know, you best learn from things you find out yourself.

In reply to Re^3: Control Structure problem, mistake can't be found by jethro
in thread Control Structure problem, mistake can't be found by koolgirl

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