About last year, this [1] article on the Amb operator was featured in HN, so back then, I grabbed the Rosettacode Go example and wrote a blogpost[2], going through such an example. Feel free to check it out!

[1] http://www.randomhacks.net/2005/10/11/amb-operator/

[2] https://tpaschalis.github.io/golang-amb-operator/