> Go on a 5x5 board would be a very straightforward game I think it is not a good comparison. A small board calls for simpler algorithms: just try out all poss

> Go on a 5x5 board would be a very straightforward game I think it is not a good comparison. A small board calls for simpler algorithms: just try out all possible games and choose the most favorable one. For larger boards this simple approach doesn't work any more and you start looking for something different. But the architecture of NN networks doesn't change at all if you move from small to large scales. Only the number and size of layers increases. Edit: actually, that's the reason they call it "deep learning". it has more layers..