I'm not sure how this ever got popular under my namespace, but it seems to have enough interest that I feel compelled to maintain it now. The original author, Steven Degutis, committed the initial suite of tests, 4c5e766, on Mar 10, 2012. I don't recall now how I discovered the initial codebase beyond searching for "go koans" on GitHub. I do recall that I was enlightened considerably by Ruby Koans