Scandinavian

Robatsch played that Qd8 line against Fischer in 1962.

@ Nelson Moore: I'm a bit surprised that a couple of 2000+ players like you make moves that seem to go against some basic opening principles.

What's the point of 3. Bb5+? White is simply wasting a tempo.

And a move later, Black does the same with ... Bg4.

Then White plays f3 - in my humble opinion, only bad things happen when you play f3. (Although there are a few exceptions)

And by the 22nd move, White still hasn't castled.

These all look to me like elementary mistakes. So why is it good chess?

I have no doubt that it is well-known theory. My question is: why is it good chess?

The way I see it, the same postion can be reached after 3. Bc4 Bf5 and then White can decide whether to play f3 or something else entirely, while Black is in effect a tempo up compared to the game you showed.

So why is it better for the Bishops to go to b5 and g4 first?

That was helpful. Thanks!