Looks great!

This is a great kata! I think it's way too easy for 4th kyu though.

This problem still exists in the Ruby tests.

This is right. The submission tests expect the method to receive a proc as a parameter, not a block like the description states. It's a great kata though, I want to see more like these and less like random algorithms. Thank you, Lordnibbler!

This was a fun kata, thank you for making it.

The Ruby initial code has two errors in it.

• The #five method is not included
• "divided_by" is misspelled "devided_by" (the first e should be an i)

Beautiful solution.

The author expects a result but does not specify it. For future reference (this is not a spoiler, this should be in the description):

• the kata expects a result of 0 if the array is nil or empty.
• it does not expect you to handle arrays that have nil entries.

I get a "Parse error: Ruby is invalid." when I hit Test or Attempt.

I guess Christmas is cancelled this year! I knew I should have been better...