Are the go tests adapted to be order agnostic? My tests were failing until I adjusted the code and changed the coordinates order.

try this: http://ruby-doc.org/core-2.2.0/String.html#method-i-5B-5D

I got the Ruby version to work but in Javascript, using .reduce takes too long with big numbers and site times out. Using a simple for loop results in incorrect math with higher numbers, and there's no way to import a bigint library.

this is so beautiful!!

I found the nitpicky-ness of the float points tough to manage w/ JS rounding, but I worked it out using a replace. Consider accepting 120.0g instead of 120g, or clarifying in instructions (removed as issue and re-posted as comment!)

Introducting this topic without mentioning that a majority of coders who worked on the Engima Machine were female seems like a missed opportunity: http://www.cnn.com/2013/11/11/world/europe/lifting-the-veil-of-secrecy-codebreakers/.