I may be wrong here but in "10. Example: a guessing game!", the code won't work because one is a string and one isn't? maybe i'm wrong but should you add:
' secret_number = secret_number.to_s
Granted you are no longer working with integers, however otherwise it seems to not work. Is the input considered a string?
Yep! This is technically a bug in the tutorial; some people really enjoyed figuring it out, like a puzzle, though.
The input is considered a string. It's the '42' that's not. Try
to_ion the input.