The Hero game, well, basically any toss opening has a hole the zerg can exploit to get rather far ahead, especially if you want to do a timing every probe not mining means your push is delayed by a few seconds and it adds up. This is the second time I have seen this slow ling cheese in a progame, it's crazy gamble because you need the toss to not wall, to go harass with his first few units and to not see any additional lings anywhere on the map, which is coincidentally what a many tosses have been doing recently. If he caught wind of this, he plugs the wall and stays at home with his units, maybe even gets a second cannon and the zerg looks like an idiot.