Yet nobody found it. The closest thing to a roach rush people found was the 5-roach build [1], which is slower and it suffers a lot economically if the rush fails.
For the record, though, I've played against the 7-roach build a couple of weeks ago, and iirc that was a few days before EvolutionChamber was announced. So some people knew about it, maybe they found out about it from the creator, or played against him, who knows.
Only because they never looked for it. Did this program decide to look for it on its own (having some idea of strategy, that would be impressive)? Or did the creator tell it to find fastest 7 roach build?
I'd imagine you would assign each unit some kind of relative value to each other and then factor in a time weighing making earlier builds more desirable even if there unit score is lower.
For the record, though, I've played against the 7-roach build a couple of weeks ago, and iirc that was a few days before EvolutionChamber was announced. So some people knew about it, maybe they found out about it from the creator, or played against him, who knows.
[1] http://wiki.teamliquid.net/starcraft2/5_Roach_Rush_%28vs._Te...